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authorMojca Miklavec <mojca.miklavec@gmail.com>2012-05-14 17:38:55 +0000
committerMojca Miklavec <mojca.miklavec@gmail.com>2012-05-14 17:38:55 +0000
commit15995e10bfc68edf79970c4ea4fbb6678566c46e (patch)
tree2de7ca2a83f2d37ef043ad7429a5cb945bb79ddb /Master/texmf-dist/metapost
parentc9a39f716f1e5ec820ed3aab2c9aef25c5a9d730 (diff)
ConTeXt 2012.05.14 16:00
git-svn-id: svn://tug.org/texlive/trunk@26371 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Master/texmf-dist/metapost')
-rw-r--r--Master/texmf-dist/metapost/context/base/metafun.mp75
-rw-r--r--Master/texmf-dist/metapost/context/base/metafun.mpii65
-rw-r--r--Master/texmf-dist/metapost/context/base/metafun.mpiv52
-rw-r--r--Master/texmf-dist/metapost/context/base/mp-abck.mpiv269
-rw-r--r--Master/texmf-dist/metapost/context/base/mp-apos.mpiv102
-rw-r--r--Master/texmf-dist/metapost/context/base/mp-asnc.mpiv177
-rw-r--r--Master/texmf-dist/metapost/context/base/mp-back.mp3
-rw-r--r--Master/texmf-dist/metapost/context/base/mp-base.mpii (renamed from Master/texmf-dist/metapost/context/base/mp-base.mp)0
-rw-r--r--Master/texmf-dist/metapost/context/base/mp-base.mpiv867
-rw-r--r--Master/texmf-dist/metapost/context/base/mp-butt.mp75
-rw-r--r--Master/texmf-dist/metapost/context/base/mp-butt.mpii77
-rw-r--r--Master/texmf-dist/metapost/context/base/mp-butt.mpiv77
-rw-r--r--Master/texmf-dist/metapost/context/base/mp-char.mpii (renamed from Master/texmf-dist/metapost/context/base/mp-char.mp)67
-rw-r--r--Master/texmf-dist/metapost/context/base/mp-char.mpiv1116
-rw-r--r--Master/texmf-dist/metapost/context/base/mp-chem.mpiv (renamed from Master/texmf-dist/metapost/context/base/mp-chem.mp)93
-rw-r--r--Master/texmf-dist/metapost/context/base/mp-core.mpii (renamed from Master/texmf-dist/metapost/context/base/mp-core.mp)8
-rw-r--r--Master/texmf-dist/metapost/context/base/mp-core.mpiv1558
-rw-r--r--Master/texmf-dist/metapost/context/base/mp-crop.mpiv194
-rw-r--r--Master/texmf-dist/metapost/context/base/mp-figs.mpii (renamed from Master/texmf-dist/metapost/context/base/mp-figs.mp)31
-rw-r--r--Master/texmf-dist/metapost/context/base/mp-figs.mpiv47
-rw-r--r--Master/texmf-dist/metapost/context/base/mp-fobg.mp3
-rw-r--r--Master/texmf-dist/metapost/context/base/mp-form.mpii (renamed from Master/texmf-dist/metapost/context/base/mp-form.mp)30
-rw-r--r--Master/texmf-dist/metapost/context/base/mp-form.mpiv30
-rw-r--r--Master/texmf-dist/metapost/context/base/mp-func.mp59
-rw-r--r--Master/texmf-dist/metapost/context/base/mp-func.mpii58
-rw-r--r--Master/texmf-dist/metapost/context/base/mp-func.mpiv78
-rw-r--r--Master/texmf-dist/metapost/context/base/mp-grid.mpii (renamed from Master/texmf-dist/metapost/context/base/mp-grid.mp)5
-rw-r--r--Master/texmf-dist/metapost/context/base/mp-grid.mpiv142
-rw-r--r--Master/texmf-dist/metapost/context/base/mp-grph.mpii (renamed from Master/texmf-dist/metapost/context/base/mp-grph.mp)68
-rw-r--r--Master/texmf-dist/metapost/context/base/mp-grph.mpiv259
-rw-r--r--Master/texmf-dist/metapost/context/base/mp-idea.mpiv30
-rw-r--r--Master/texmf-dist/metapost/context/base/mp-mlib.mp533
-rw-r--r--Master/texmf-dist/metapost/context/base/mp-mlib.mpiv616
-rw-r--r--Master/texmf-dist/metapost/context/base/mp-page.mpii (renamed from Master/texmf-dist/metapost/context/base/mp-page.mp)187
-rw-r--r--Master/texmf-dist/metapost/context/base/mp-page.mpiv322
-rw-r--r--Master/texmf-dist/metapost/context/base/mp-shap.mp307
-rw-r--r--Master/texmf-dist/metapost/context/base/mp-shap.mpii206
-rw-r--r--Master/texmf-dist/metapost/context/base/mp-shap.mpiv218
-rw-r--r--Master/texmf-dist/metapost/context/base/mp-spec.mpii (renamed from Master/texmf-dist/metapost/context/base/mp-spec.mp)6
-rw-r--r--Master/texmf-dist/metapost/context/base/mp-step.mpii (renamed from Master/texmf-dist/metapost/context/base/mp-step.mp)53
-rw-r--r--Master/texmf-dist/metapost/context/base/mp-step.mpiv376
-rw-r--r--Master/texmf-dist/metapost/context/base/mp-text.mpii (renamed from Master/texmf-dist/metapost/context/base/mp-text.mp)3
-rw-r--r--Master/texmf-dist/metapost/context/base/mp-text.mpiv163
-rw-r--r--Master/texmf-dist/metapost/context/base/mp-tool.mpii (renamed from Master/texmf-dist/metapost/context/base/mp-tool.mp)75
-rw-r--r--Master/texmf-dist/metapost/context/base/mp-tool.mpiv2183
-rw-r--r--Master/texmf-dist/metapost/context/base/mp-txts.mpii (renamed from Master/texmf-dist/metapost/context/base/mp-txts.mp)3
46 files changed, 9721 insertions, 1245 deletions
diff --git a/Master/texmf-dist/metapost/context/base/metafun.mp b/Master/texmf-dist/metapost/context/base/metafun.mp
index 00011c8be51..ae0a6d6fdf7 100644
--- a/Master/texmf-dist/metapost/context/base/metafun.mp
+++ b/Master/texmf-dist/metapost/context/base/metafun.mp
@@ -1,75 +1,8 @@
-%D \module
-%D [ file=metafun.mp,
-%D version=2000.07.15,
-%D title=\CONTEXT\ \METAPOST\ graphics,
-%D subtitle=format generation file,
-%D author=Hans Hagen,
-%D date=\currentdate,
-%D copyright={PRAGMA / Hans Hagen \& Ton Otten}]
-%C
-%C This module is part of the \CONTEXT\ macro||package and is
-%C therefore copyrighted by \PRAGMA. See mreadme.pdf for
-%C details.
+if known metafunversion : endinput ; fi ;
-%D When generating many graphics at runtime, it can save run
-%D time to use a format file. We could have named this file
-%D \type {context}, but this is error prone, because it forces
-%D to use the progname \type {mpost} or \type {context}
-%D explicitly, depending on the needs. When using the format,
-%D a mismatch in the memory specification of \type {mpost} or
-%D \type {context} (the \TEX\ one) could lead to lost strings
-%D (and as a result in buggy boundingbox and special
-%D handling). By using the name \type {metatex} we make sure
-%D that we use (unless overloaded) the settings of \type
-%D {mpost}.
-
-%D First we input John Hobby's metapost plain file. However,
-%D because we want to prevent dependency problems and in the
-%D end even may use a patched version, we prefer to use a
-%D copy,
-
-if unknown ahangle :
- input mp-base.mp ; % input plain.mp ;
+if known mplib :
+ input metafun.mpiv
else :
- let dump = relax ;
+ input metafun.mpii
fi ;
-input mp-tool.mp ;
-input mp-spec.mp ; % will be skipped in mkiv, some day
-input mp-core.mp ;
-input mp-page.mp ;
-input mp-text.mp ;
-input mp-txts.mp ;
-input mp-shap.mp ;
-input mp-butt.mp ;
-input mp-char.mp ;
-input mp-step.mp ;
-input mp-grph.mp ;
-input mp-figs.mp ;
-
-input mp-mlib.mp ;
-
-if known context_mlib : input mp-chem.mp ; fi ; % only when mkiv
-
-% mp-form.mp ;
-input mp-grid.mp ;
-input mp-func.mp ;
-
-string metafunversion ;
-
-metafunversion = "metafun" & " " &
- decimal year & "-" &
- decimal month & "-" &
- decimal day & " " &
- if ((time div 60) < 10) : "0" & fi
- decimal (time div 60) & ":" &
- if ((time-(time div 60)*60) < 10) : "0" & fi
- decimal (time-(time div 60)*60) ;
-
-let normalend = end ;
-
-def end =
- ; message "" ; message metafunversion ; message "" ; normalend ;
-enddef ;
-
-dump ; endinput .
diff --git a/Master/texmf-dist/metapost/context/base/metafun.mpii b/Master/texmf-dist/metapost/context/base/metafun.mpii
new file mode 100644
index 00000000000..0de186ed220
--- /dev/null
+++ b/Master/texmf-dist/metapost/context/base/metafun.mpii
@@ -0,0 +1,65 @@
+%D \module
+%D [ file=metafun.mp,
+%D version=2000.07.15,
+%D title=\CONTEXT\ \METAPOST\ graphics,
+%D subtitle=format generation file,
+%D author=Hans Hagen,
+%D date=\currentdate,
+%D copyright={PRAGMA / Hans Hagen \& Ton Otten}]
+%C
+%C This module is part of the \CONTEXT\ macro||package and is
+%C therefore copyrighted by \PRAGMA. See mreadme.pdf for
+%C details.
+
+%D When generating many graphics at runtime, it can save run
+%D time to use a format file. We could have named this file
+%D \type {context}, but this is error prone, because it forces
+%D to use the progname \type {mpost} or \type {context}
+%D explicitly, depending on the needs. When using the format,
+%D a mismatch in the memory specification of \type {mpost} or
+%D \type {context} (the \TEX\ one) could lead to lost strings
+%D (and as a result in buggy boundingbox and special
+%D handling). By using the name \type {metatex} we make sure
+%D that we use (unless overloaded) the settings of \type
+%D {mpost}.
+
+%D First we input John Hobby's metapost plain file. However,
+%D because we want to prevent dependency problems and in the
+%D end even may use a patched version, we prefer to use a
+%D copy.
+
+input "mp-base.mpii" ;
+input "mp-tool.mpii" ;
+input "mp-spec.mpii" ;
+input "mp-core.mpii" ;
+input "mp-page.mpii" ;
+input "mp-text.mpii" ;
+input "mp-txts.mpii" ;
+input "mp-shap.mpii" ;
+input "mp-butt.mpii" ;
+input "mp-char.mpii" ;
+input "mp-step.mpii" ;
+input "mp-grph.mpii" ;
+input "mp-figs.mpii" ;
+%%%%% "mp-form.mpii" ;
+input "mp-grid.mpii" ;
+input "mp-func.mpii" ;
+
+string metafunversion ;
+
+metafunversion = "metafun ii" & " " &
+ decimal year & "-" &
+ decimal month & "-" &
+ decimal day & " " &
+ if ((time div 60) < 10) : "0" & fi
+ decimal (time div 60) & ":" &
+ if ((time-(time div 60)*60) < 10) : "0" & fi
+ decimal (time-(time div 60)*60) ;
+
+let normalend = end ;
+
+def end =
+ ; message "" ; message metafunversion ; message "" ; normalend ;
+enddef ;
+
+dump ;
diff --git a/Master/texmf-dist/metapost/context/base/metafun.mpiv b/Master/texmf-dist/metapost/context/base/metafun.mpiv
new file mode 100644
index 00000000000..d600764a3d0
--- /dev/null
+++ b/Master/texmf-dist/metapost/context/base/metafun.mpiv
@@ -0,0 +1,52 @@
+%D \module
+%D [ file=metafun.mp,
+%D version=2000.07.15,
+%D title=\CONTEXT\ \METAPOST\ graphics,
+%D subtitle=format generation file,
+%D author=Hans Hagen,
+%D date=\currentdate,
+%D copyright={PRAGMA / Hans Hagen \& Ton Otten}]
+%C
+%C This module is part of the \CONTEXT\ macro||package and is
+%C therefore copyrighted by \PRAGMA. See mreadme.pdf for
+%C details.
+
+%D First we input John Hobby's metapost plain file. However,
+%D because we want to prevent dependency problems and in the
+%D end even may use a patched version, we prefer to use a
+%D copy.
+
+input "mp-base.mpiv" ;
+input "mp-tool.mpiv" ;
+input "mp-mlib.mpiv" ;
+% "mp-core.mpiv" ; % todo: namespace and cleanup
+input "mp-page.mpiv" ; % todo: namespace and cleanup
+input "mp-butt.mpiv" ; % todo: namespace and cleanup
+input "mp-shap.mpiv" ; % will be improved
+input "mp-grph.mpiv" ; % todo: namespace and cleanup
+input "mp-grid.mpiv" ; % todo: namespace and cleanup
+input "mp-form.mpiv" ; % under (re)construction
+input "mp-figs.mpiv" ; % obsolete, needs checking
+input "mp-func.mpiv" ; % under construction
+% "mp-text.mpiv" ; % loaded on demand
+% "mp-char.mpiv" ; % loaded on demand
+% "mp-step.mpiv" ; % loaded on demand
+% "mp-chem.mpiv" ; % loaded on demand
+
+string metafunversion ; metafunversion =
+ "metafun iv" & " " &
+ decimal year & "-" &
+ decimal month & "-" &
+ decimal day & " " &
+ if ((time div 60) < 10) : "0" & fi
+ decimal (time div 60) & ":" &
+ if ((time-(time div 60)*60) < 10) : "0" & fi
+ decimal (time-(time div 60)*60) ;
+
+let normalend = end ;
+
+def end =
+ ; message "" ; message metafunversion ; message "" ; normalend ;
+enddef ;
+
+dump ; % obsolete in mplib
diff --git a/Master/texmf-dist/metapost/context/base/mp-abck.mpiv b/Master/texmf-dist/metapost/context/base/mp-abck.mpiv
new file mode 100644
index 00000000000..977bebcfdb5
--- /dev/null
+++ b/Master/texmf-dist/metapost/context/base/mp-abck.mpiv
@@ -0,0 +1,269 @@
+%D \module
+%D [ file=mp-abck.mp,
+%D version=2012.02.19, % was mp-core: 1999.08.01, anchoring
+%D title=\CONTEXT\ \METAPOST\ graphics,
+%D subtitle=anchored background macros,
+%D author=Hans Hagen,
+%D date=\currentdate,
+%D copyright={PRAGMA / Hans Hagen \& Ton Otten}]
+%C
+%C This module is part of the \CONTEXT\ macro||package and is
+%C therefore copyrighted by \PRAGMA. See mreadme.pdf for
+%C details.
+
+if known context_abck : endinput ; fi ;
+
+boolean context_abck ; context_abck := true ;
+
+path multiregs[], % region used for multipar (tracing only)
+ multipars[], % effective area (shape)
+ multibox ; % main boundingbox (of main region)
+
+string multikind[] ; % region state: single | first | middle | last (new method)
+
+numeric multilocs[], % 1=begin 2=between 3=end (old method)
+ nofmultipars ; % number of calculated areas
+
+numeric par_strut_height,
+ par_strut_depth,
+ par_line_height ;
+
+nofmultipars := 0 ;
+par_strut_height := 0 ;
+par_strut_depth := 0 ;
+par_line_height := 0 ;
+
+def boxgridoptions = withcolor .8red enddef ;
+def boxlineoptions = withcolor .8blue enddef ;
+def boxfilloptions = withcolor .8white enddef ;
+
+numeric boxgridtype ; boxgridtype := 0 ;
+numeric boxlinetype ; boxlinetype := 1 ;
+numeric boxfilltype ; boxfilltype := 1 ;
+numeric boxdashtype ; boxdashtype := 0 ;
+pair boxgriddirection ; boxgriddirection := up ;
+numeric boxgridwidth ; boxgridwidth := 1pt ;
+numeric boxlinewidth ; boxlinewidth := 1pt ;
+numeric boxlineradius ; boxlineradius := 0 ;
+numeric boxlineoffset ; boxlineoffset := 0 ;
+numeric boxfilloffset ; boxfilloffset := 0 ;
+numeric boxgriddistance ; boxgriddistance := .5cm ;
+numeric boxgridshift ; boxgridshift := 0 ;
+
+def abck_show_path(expr p, r, c) =
+ draw p withpen pencircle scaled .5pt withcolor c ;
+ if length(p) > 2 :
+ begingroup ; save _c_ ; path _c_ ; _c_ := fullcircle scaled r ;
+ for i=0 upto length(p) if cycle p : -1 fi :
+ fill _c_ shifted point i of p withcolor white ;
+ draw _c_ shifted point i of p withpen pencircle scaled .5pt withcolor c ;
+ endfor ;
+ fi ;
+enddef ;
+
+vardef abck_draw_path(expr p) =
+ if (length p > 2) and (bbwidth(p) > 1) and (bbheight(p) > 1) :
+ save pp ; path pp ;
+ pp := p if (boxlineradius>0) and (boxlinetype=2) : cornered boxlineradius fi ;
+ if boxfilltype > 0 :
+ if boxfilloffset > 0 :
+ interim linejoin := mitered ;
+ filldraw pp boxfilloptions withpen pencircle scaled (2*boxfilloffset) ;
+ else :
+ fill pp boxfilloptions ;
+ fi ;
+ fi ;
+ if boxlinetype > 0 :
+ draw pp boxlineoptions withpen pencircle scaled boxlinewidth ;
+ fi ;
+ fi ;
+enddef ;
+
+def abck_grid_line(expr start, width) =
+ % 1 = normal, 2 = with background (i.e. no shine-through)
+ if boxdashtype = 2 :
+ draw start -- start shifted (width,0)
+ withpen pencircle scaled boxgridwidth
+ boxfilloptions ;
+ fi ;
+ draw start -- start shifted (width,0)
+ if boxdashtype > 0 :
+ dashed evenly
+ fi
+ withpen pencircle scaled boxgridwidth
+ boxgridoptions ;
+enddef ;
+
+vardef abck_baseline_grid(expr pxy, pdir, at_baseline) =
+ save width ; width := bbwidth(pxy) ;
+ save height ; height := bbheight(pxy) ;
+ if (par_line_height > 0) and (height > 1) and (width > 1) and (boxgridwidth > 0) :
+ save i, grid, bb ; picture grid ; pair start ; path bb ;
+ grid := image ( % fails with inlinespace
+ if pdir = up :
+ for i = if at_baseline : par_strut_depth else : 0 fi step par_line_height until max(height,par_line_height) :
+ abck_grid_line(llcorner pxy shifted (0,+i),width) ;
+ endfor ;
+ else :
+ for i = if at_baseline : par_strut_height else : 0 fi step par_line_height until height :
+ abck_grid_line(ulcorner pxy shifted (0,-i),width) ;
+ endfor ;
+ fi ;
+ ) ;
+ clip grid to pxy ;
+ bb := boundingbox grid ;
+ grid := grid shifted (0,boxgridshift) ;
+ setbounds grid to bb ;
+ grid
+ else :
+ nullpicture
+ fi
+enddef ;
+
+vardef abck_graphic_grid(expr pxy, dx, dy, x, y) =
+ if (bbheight(pxy) > dy) and (bbwidth(pxy) > dx) and (boxgridwidth > 0) :
+ save grid ; picture grid ;
+ grid := image (
+ for i = xpart llcorner pxy step dx until xpart lrcorner pxy :
+ draw (i,ypart llcorner pxy) -- (i,ypart ulcorner pxy) withpen pencircle scaled boxgridwidth ;
+ endfor ;
+ for i = ypart llcorner pxy step dy until ypart ulcorner pxy :
+ draw (xpart llcorner pxy,i) -- (xpart lrcorner pxy,i) withpen pencircle scaled boxgridwidth ;
+ endfor
+ ) shifted (x,y) ;
+ clip grid to pxy ;
+ grid
+ else :
+ nullpicture
+ fi
+enddef ;
+
+def draw_multi_pars =
+ for i=1 upto nofmultipars :
+ abck_draw_path(multipars[i]) ;
+ if boxgridtype = 1 :
+ draw abck_baseline_grid(multipars[i],if multilocs[i]=1: down else: up fi,true) ;
+ elseif boxgridtype = 2 :
+ draw abck_baseline_grid(multipars[i],if multilocs[i]=1: down else: up fi,false) ;
+ elseif boxgridtype = 3 :
+ draw abck_baseline_grid(multipars[i],if multilocs[i]=1: down else: up fi,true) ;
+ draw abck_baseline_grid(multipars[i],if multilocs[i]=1: down else: up fi,true) shifted (0,ExHeight) ;
+ elseif boxgridtype = 4 :
+ draw abck_baseline_grid(multipars[i],if multilocs[i]=1: down else: up fi,true) shifted (0,ExHeight/2) ;
+ elseif boxgridtype = 11 :
+ draw abck_graphic_grid(multipars[i],boxgriddistance,boxgriddistance,boxgriddistance/2,boxgriddistance/2) ;
+ elseif boxgridtype = 12 :
+ draw abck_graphic_grid(multipars[i],boxgriddistance,boxgriddistance,0,0) ;
+ fi ;
+ endfor ;
+enddef ;
+
+def show_multi_pars =
+ for i=1 upto nofmultipars :
+ abck_show_path(multipars[i], 6pt, .5blue) ;
+ endfor ;
+enddef ;
+
+def show_multi_kind =
+ for i=1 upto nofmultipars :
+ fill multipars[i]
+ withcolor
+ if multikind[i] = "single" : yellow
+ elseif multikind[i] = "first" : red
+ elseif multikind[i] = "middle" : green
+ elseif multikind[i] = "last" : blue
+ fi
+ withtransparency (1,.5)
+ ;
+ endfor ;
+enddef ;
+
+def multi_side_draw_options = enddef ;
+
+def draw_multi_side =
+ begingroup ; save p ; picture p ;
+ for i=1 upto nofmultipars :
+ p := image ( fill leftboundary multipars[i]
+ shifted (-boxlineoffset,0)
+ rightenlarged boxlinewidth boxlineoptions ;
+ ) ;
+ setbounds p to multipars[i] ;
+ draw p ;
+ endfor ;
+ endgroup ;
+enddef ;
+
+def draw_multi_side_path text t =
+ begingroup ; save p ; picture p ;
+ for i=1 upto nofmultipars :
+ p := image ( draw leftboundary multipars[i]
+ shifted (-boxlineoffset,0)
+ withpen pensquare scaled boxlinewidth boxlineoptions t ;
+ ) ;
+ setbounds p to multipars[i] ;
+ draw p ;
+ endfor ;
+ endgroup ;
+enddef ;
+
+% some extras
+
+path posboxes[],
+ posregions[] ;
+
+numeric multipages[],
+ nofposboxes ;
+
+nofposboxes := 0 ;
+
+% For the moment we keep these as they can be in use but they will
+% disappear.
+
+pair lxy[], rxy[], cxy[], llxy[], lrxy[], ulxy[], urxy[] ;
+path pxy[] ;
+numeric hxy[], wxy[], dxy[], nxy[] ;
+
+def box_found (expr n,x,y,w,h,d) =
+ not ((x=0) and (y=0) and (w=0) and (h=0) and (d=0))
+enddef ;
+
+def initialize_box_pos (expr pos,n,x,y,w,h,d) =
+ pair lxy, rxy, cxy, llxy, lrxy, ulxy, urxy ;
+ path pxy ; numeric hxy, wxy, dxy, nxy;
+ lxy := (x,y) ;
+ llxy := (x,y-d) ;
+ lrxy := (x+w,y-d) ;
+ urxy := (x+w,y+h) ;
+ ulxy := (x,y+h) ;
+ wxy := w ;
+ hxy := h ;
+ dxy := d ;
+ rxy := lxy shifted (wxy,0) ;
+ pxy := llxy--lrxy--urxy--ulxy--cycle ;
+ cxy := center pxy ;
+ nxy := n ;
+ freeze_box(pos) ;
+enddef ;
+
+def freeze_box (expr pos) =
+ lxy[pos] := lxy ;
+ llxy[pos] := llxy ;
+ lrxy[pos] := lrxy ;
+ urxy[pos] := urxy ;
+ ulxy[pos] := ulxy ;
+ wxy[pos] := wxy ;
+ hxy[pos] := hxy ;
+ dxy[pos] := dxy ;
+ rxy[pos] := rxy ;
+ pxy[pos] := pxy ;
+ cxy[pos] := cxy ;
+ nxy[pos] := nxy ;
+enddef ;
+
+def initialize_box (expr n,x,y,w,h,d) =
+ numeric bpos ; bpos := 0 ; initialize_box_pos(bpos,n,x,y,w,h,d) ;
+enddef ;
+
+def anchor_box (expr n,x,y,w,h,d) =
+ currentpicture := currentpicture shifted (-x,-y) ;
+enddef ;
diff --git a/Master/texmf-dist/metapost/context/base/mp-apos.mpiv b/Master/texmf-dist/metapost/context/base/mp-apos.mpiv
new file mode 100644
index 00000000000..fad185b7827
--- /dev/null
+++ b/Master/texmf-dist/metapost/context/base/mp-apos.mpiv
@@ -0,0 +1,102 @@
+%D \module
+%D [ file=mp-apos.mp,
+%D version=2012.02.19, % was mp-core: 1999.08.01, anchoring
+%D title=\CONTEXT\ \METAPOST\ graphics,
+%D subtitle=anchored background macros,
+%D author=Hans Hagen,
+%D date=\currentdate,
+%D copyright={PRAGMA / Hans Hagen \& Ton Otten}]
+%C
+%C This module is part of the \CONTEXT\ macro||package and is
+%C therefore copyrighted by \PRAGMA. See mreadme.pdf for
+%C details.
+
+if known context_apos : endinput ; fi ;
+
+boolean context_apos ; context_apos := true ;
+
+path posboxes[],
+ posregions[] ;
+
+numeric multipages[],
+ nofposboxes ;
+
+nofposboxes := 0 ;
+
+def boxlineoptions = withcolor .8blue enddef ;
+def boxfilloptions = withcolor .8white enddef ;
+
+def connect_positions =
+ if nofposboxes = 2 :
+ pickup pencircle scaled boxlinewidth ;
+ path pa ; pa := posboxes[1] enlarged boxlineoffset ;
+ path pb ; pb := posboxes[2] enlarged boxlineoffset ;
+ if pospages[1] = pospages[2] :
+ draw posboxes[1] boxlineoptions ;
+ path pc ; pc := center pa {up} .. {down} center pb ;
+ pair cc ; cc := (pc intersection_point pa) ;
+ if intersection_found :
+ pc := pc cutbefore cc ;
+ cc := (pc intersection_point pb) ;
+ if intersection_found :
+ pc := pc cutafter cc ;
+ drawarrow pc boxlineoptions ;
+ drawarrow reverse pc boxlineoptions ;
+ fi ;
+ fi ;
+ elseif pospages[1] == RealPageNumber :
+ draw posboxes[1] boxlineoptions ;
+ path pc ; pc := center pa {up} ... {right} urcorner (posregions[1] enlarged (20pt,20pt)) ;
+ pair cc ; cc := (pc intersection_point pa) ;
+ if intersection_found :
+ pc := pc cutbefore cc ;
+ drawarrow pc boxlineoptions ;
+ fi ;
+ elseif pospages[2] == RealPageNumber :
+ draw posboxes[2] boxlineoptions ;
+ path pc ; pc := ulcorner (posregions[2] enlarged (20pt,20pt)) {right} ... {down} center pb ;
+ pair cc ; cc := (pc intersection_point pb) ;
+ if intersection_found :
+ pc := pc cutafter cc ;
+ drawarrow pc boxlineoptions ;
+ fi ;
+ fi ;
+ fi ;
+enddef ;
+
+% anch-bar:
+
+def anch_sidebars_draw (expr p_b_self, p_e_self, y_b_self, y_e_self, h_b_self, d_e_self,
+ x, y, w, h, alternative, distance, linewidth, linecolor, topoffset, bottomoffset) =
+ % beware, we anchor at (x,y)
+ begingroup ;
+ if alternative = 1 :
+ interim linecap := rounded ;
+ else :
+ interim linecap := butt ;
+ fi ;
+ save a, b ; pair a, b ;
+ if p_b_self = p_e_self :
+ a := (-distance,y_b_self+h_b_self-y) ;
+ b := (-distance,y_e_self-d_e_self-y) ;
+ elseif RealPageNumber = p_b_self :
+ a := (-distance,y_b_self+h_b_self-y) ;
+ b := (-distance,0) ;
+ elseif RealPageNumber = p_e_self :
+ a := (-distance,h) ;
+ b := (-distance,y_e_self-d_e_self-y) ;
+ else :
+ a := (-distance,h) ;
+ b := (-distance,0) ;
+ fi ;
+ a := (xpart a, min(ypart a + topoffset, h)) ;
+ b := (xpart b, max(ypart b - bottomoffset,0)) ;
+ draw
+ a -- b
+ if alternative = 1 :
+ dashed (withdots scaled (linewidth/2))
+ fi
+ withpen pencircle scaled linewidth
+ withcolor linecolor ;
+ endgroup ;
+enddef ;
diff --git a/Master/texmf-dist/metapost/context/base/mp-asnc.mpiv b/Master/texmf-dist/metapost/context/base/mp-asnc.mpiv
new file mode 100644
index 00000000000..cfee782e778
--- /dev/null
+++ b/Master/texmf-dist/metapost/context/base/mp-asnc.mpiv
@@ -0,0 +1,177 @@
+%D \module
+%D [ file=mp-asnc.mp,
+%D version=2012.02.19, % was mp-core: 1999.08.01, anchoring
+%D title=\CONTEXT\ \METAPOST\ graphics,
+%D subtitle=anchored background macros,
+%D author=Hans Hagen,
+%D date=\currentdate,
+%D copyright={PRAGMA / Hans Hagen \& Ton Otten}]
+%C
+%C This module is part of the \CONTEXT\ macro||package and is
+%C therefore copyrighted by \PRAGMA. See mreadme.pdf for
+%C details.
+
+if known context_asnc : endinput ; fi ;
+
+boolean context_av ; context_asnc := true ;
+
+% will be replaced
+
+numeric sync_n[], sync_p[][], sync_w[][], sync_h[][], sync_d[][], sync_t[][] ;
+pair sync_xy[][] ; color sync_c[][] ;
+
+def ResetSyncTasks =
+ path SyncPaths[] ; numeric SyncTasks[], NOfSyncPaths, CurrentSyncClass ;
+ NOfSyncPaths := CurrentSyncClass := 0 ;
+ if unknown SyncLeftOffset : numeric SyncLeftOffset ; SyncLeftOffset := 0 ; fi ;
+ if unknown SyncWidth : numeric SyncWidth ; SyncWidth := 0 ; fi ;
+ if unknown SyncThreshold : numeric SyncThreshold ; SyncThreshold := LineHeight ; fi ;
+ if unknown SyncColor : color SyncColor ; SyncColor := .5white ; fi ;
+ if (SyncLeftOffset = 0) and (SyncWidth = 0) :
+ SyncWidth := if known TextWidth : TextWidth else : -1cm fi ;
+ fi ;
+enddef ;
+
+ResetSyncTasks ;
+
+vardef SyncBox(expr n, i, leftoffset, width, topoffset, bottomoffset) =
+ save o ; pair o ; o := (xpart llcorner PlainTextArea,ypart sync_xy[n][i]) ;
+ o shifted (leftoffset,sync_h[n][i]+topoffset) --
+ o shifted (width+leftoffset,sync_h[n][i]+topoffset) --
+ o shifted (width+leftoffset,bottomoffset) --
+ o shifted (leftoffset,bottomoffset) -- cycle
+enddef ;
+
+def SetSyncColor(expr n, i, c) =
+ sync_c[n][i] := c ;
+enddef ;
+
+def SetSyncThreshold(expr n, i, th) =
+ sync_th[n][i] := th ;
+enddef ;
+
+vardef TheSyncColor(expr n, i) =
+ if known sync_c[n][i] : sync_c[n][i] else : SyncColor fi
+enddef ;
+
+vardef TheSyncThreshold(expr n, i) =
+ if known sync_th[n][i] : sync_th[n][i] else : SyncThreshold fi
+enddef ;
+
+vardef PrepareSyncTasks(expr n, collapse, extendtop, prestartnext) =
+ ResetSyncTasks ;
+ if known sync_n[n] :
+ CurrentSyncClass := n ;
+ save ok, l, d ; boolean ok ; ok := false ; NOfSyncPaths := l := 0 ;
+ for i=1 upto sync_n[n] :
+ if RealPageNumber > sync_p[n][i] :
+ l := i ;
+ elseif RealPageNumber = sync_p[n][i] :
+ NOfSyncPaths := NOfSyncPaths + 1 ;
+ if not ok :
+ if i>1 :
+ if sync_t[n][i-1] = sync_t[n][i] :
+ SyncPaths[NOfSyncPaths] := SyncBox(n, i, SyncLeftOffset, SyncWidth, PaperHeight, -PaperHeight) ;
+ SyncTasks[NOfSyncPaths] := i ;
+ else :
+ SyncPaths[NOfSyncPaths] := SyncBox(n, i-1, SyncLeftOffset, SyncWidth, PaperHeight, -PaperHeight) ;
+ SyncTasks[NOfSyncPaths] := i-1 ;
+ NOfSyncPaths := NOfSyncPaths + 1 ;
+ SyncPaths[NOfSyncPaths] := SyncBox(n, i, SyncLeftOffset, SyncWidth, 0, -PaperHeight) ;
+ SyncTasks[NOfSyncPaths] := i ;
+ fi ;
+ else :
+ SyncPaths[NOfSyncPaths] := SyncBox(n, i, SyncLeftOffset, SyncWidth, 0, -PaperHeight) ;
+ SyncTasks[NOfSyncPaths] := i ;
+ fi ;
+ else :
+ SyncPaths[NOfSyncPaths] := SyncBox(n, i, SyncLeftOffset, SyncWidth, 0, -PaperHeight) ;
+ SyncTasks[NOfSyncPaths] := i ;
+ fi ;
+ ok := true ;
+ fi ;
+ endfor ;
+ if (NOfSyncPaths = 0) and (l > 0) :
+ NOfSyncPaths := 1 ;
+ SyncPaths[NOfSyncPaths] := SyncBox(n, l, SyncLeftOffset, SyncWidth, PaperHeight, -PaperHeight) ;
+ SyncTasks[NOfSyncPaths] := l ;
+ fi ;
+ if NOfSyncPaths > 0 :
+ for i = 1 upto NOfSyncPaths-1 :
+ SyncPaths[i] := topboundary SyncPaths[i] -- reverse topboundary SyncPaths[i+1] -- cycle ;
+ endfor ;
+ if unknown SyncThresholdMethod :
+ numeric SyncThresholdMethod ; SyncThresholdMethod := 2 ;
+ fi ;
+ if extendtop :
+ if SyncThresholdMethod = 1 :
+ if NOfSyncPaths>1 :
+ d := ypart (ulcorner PlainTextArea - sync_xy[n][SyncTasks[2]]) ;
+ if (SyncTasks[2]>1) and (d > 0pt) and (d <= TheSyncThreshold(n,sync_t[n][SyncTasks[2]])) and (sync_p[n][SyncTasks[2]] = RealPageNumber) :
+ SyncPaths[2] := SyncPaths[2] topenlarged PaperHeight ;
+ fi ;
+ fi ;
+ else :
+ for i = 1 upto NOfSyncPaths :
+ d := ypart (ulcorner PlainTextArea - sync_xy[n][SyncTasks[i]]) ;
+ if (d > 0) and (d <= TheSyncThreshold(n,sync_t[n][SyncTasks[i]])) and (sync_p[n][SyncTasks[i]] = RealPageNumber) :
+ SyncPaths[i] := SyncPaths[i] topenlarged PaperHeight ;
+ fi ;
+ endfor ;
+ fi ;
+ fi ;
+ if prestartnext :
+ if NOfSyncPaths>1 :
+ if SyncTasks[NOfSyncPaths] < sync_n[n] : % there is a next one
+ d := ypart (ulcorner PlainTextArea - sync_xy[n][SyncTasks[NOfSyncPaths]+1]) ;
+ if (d > 0) and (d <= TheSyncThreshold(n, sync_t[n][SyncTasks[i]])) and (sync_p[n][SyncTasks[NOfSyncPaths]+1] = RealPageNumber+1) :
+ SyncPaths[NOfSyncPaths+1] :=
+ (xpart ulcorner SyncPaths[NOfSyncPaths],ypart llcorner PlainTextArea) --
+ (xpart urcorner SyncPaths[NOfSyncPaths],ypart llcorner PlainTextArea) --
+ lrcorner SyncPaths[NOfSyncPaths] --
+ llcorner SyncPaths[NOfSyncPaths] -- cycle ;
+ SyncTasks[NOfSyncPaths+1] := SyncTasks[NOfSyncPaths]+1 ;
+ NOfSyncPaths := NOfSyncPaths + 1 ;
+ fi ;
+ fi ;
+ fi ;
+ else :
+ if NOfSyncPaths>1 :
+ d := ypart (sync_xy[n][SyncTasks[NOfSyncPaths]] - llcorner PlainTextArea) ;
+ if (d < TheSyncThreshold(n, SyncTasks[NOfSyncPaths])) :
+ NOfSyncPaths := NOfSyncPaths - 1 ;
+ SyncPaths[NOfSyncPaths] := SyncPaths[NOfSyncPaths] bottomenlarged PaperHeight ;
+ fi ;
+ fi ;
+ fi ;
+ if (NOfSyncPaths>1) and collapse :
+ save j ; numeric j ; j := 1 ;
+ for i = 2 upto NOfSyncPaths :
+ if sync_t[n][SyncTasks[i]] = sync_t[n][SyncTasks[j]] :
+ SyncPaths[j] := boundingbox image (draw SyncPaths[i] ; draw SyncPaths[j] ; ) ;
+ SyncTasks[j] := SyncTasks[i] ;
+ else :
+ j := j + 1 ;
+ SyncPaths[j] := SyncPaths[i] ;
+ SyncTasks[j] := SyncTasks[i] ;
+ fi ;
+ endfor ;
+ NOfSyncPaths := j ;
+ fi ;
+ fi ;
+ fi ;
+enddef ;
+
+def SyncTask(expr n) =
+ if known SyncTasks[n] : SyncTasks[n] else : 0 fi
+enddef ;
+
+def FlushSyncTasks =
+ for i = 1 upto NOfSyncPaths :
+ ProcessSyncTask(SyncPaths[i], TheSyncColor(CurrentSyncClass,sync_t[CurrentSyncClass][SyncTasks[i]])) ;
+ endfor ;
+enddef ;
+
+def ProcessSyncTask(expr p, c) =
+ fill p withcolor c ;
+enddef ;
diff --git a/Master/texmf-dist/metapost/context/base/mp-back.mp b/Master/texmf-dist/metapost/context/base/mp-back.mp
index f49474cf77f..f588adea9c4 100644
--- a/Master/texmf-dist/metapost/context/base/mp-back.mp
+++ b/Master/texmf-dist/metapost/context/base/mp-back.mp
@@ -11,8 +11,7 @@
%C therefore copyrighted by \PRAGMA. See licen-en.pdf for
%C details.
-if unknown context_tool : input mp-tool ; fi ;
-if known context_back : endinput ; fi ;
+if known context_back : endinput ; fi ;
boolean context_back ; context_back := true ;
diff --git a/Master/texmf-dist/metapost/context/base/mp-base.mp b/Master/texmf-dist/metapost/context/base/mp-base.mpii
index 93cb5e90c8d..93cb5e90c8d 100644
--- a/Master/texmf-dist/metapost/context/base/mp-base.mp
+++ b/Master/texmf-dist/metapost/context/base/mp-base.mpii
diff --git a/Master/texmf-dist/metapost/context/base/mp-base.mpiv b/Master/texmf-dist/metapost/context/base/mp-base.mpiv
new file mode 100644
index 00000000000..7b3a69bb031
--- /dev/null
+++ b/Master/texmf-dist/metapost/context/base/mp-base.mpiv
@@ -0,0 +1,867 @@
+% This is a reformatted copy of the plain.mp file. We use a copy
+% because (1) we want to make sure that there are no unresolved
+% dependencies, and (2) we may patch this file eventually.
+
+% This file gives the macros for plain MetaPost It contains all the
+% features of plain METAFONT except those specific to font-making.
+% There are also a number of macros for labeling figures, etc.
+
+% For practical reasons I have moved some new code here (and might
+% remove some code as well). After all, there is no development in
+% this format.
+
+string base_name, base_version ;
+
+base_name := "plain" ;
+base_version := "0.63" ;
+
+message "Preloading the plain mem file, version " & base_version ;
+
+delimiters () ; % this makes parentheses behave like parentheses
+
+def upto = step 1 until enddef ;
+def downto = step -1 until enddef ;
+
+def exitunless expr c =
+ exitif not c
+enddef ;
+
+let relax = \ ; % ignore the word relax, as in TeX
+let \\ = \ ; % double relaxation is like single
+
+def [[ = [ [ enddef ;
+def ]] = ] ] enddef ;
+
+def -- =
+ {curl 1} .. {curl 1}
+enddef ;
+
+def --- =
+ .. tension infinity ..
+enddef ;
+
+def ... =
+ .. tension atleast 1 ..
+enddef ;
+
+def gobble primary g =
+enddef ;
+
+primarydef g gobbled gg =
+enddef ;
+
+def hide(text t) =
+ exitif numeric begingroup t ; endgroup ;
+enddef ;
+
+def ??? =
+ hide (
+ interim showstopping := 1 ;
+ showdependencies
+ )
+enddef ;
+
+def stop expr s =
+ message s ;
+ gobble readstring
+enddef ;
+
+warningcheck :=1 ;
+tracinglostchars :=1 ;
+
+def interact = % sets up to make "show" commands stop
+ hide (
+ showstopping := 1 ;
+ tracingonline := 1 ;
+ )
+enddef ;
+
+def loggingall = % puts tracing info into the log
+ tracingcommands := 3 ;
+ tracingtitles := 1 ;
+ tracingequations := 1 ;
+ tracingcapsules := 1 ;
+ tracingspecs := 2 ;
+ tracingchoices := 1 ;
+ tracinglostchars := 1 ;
+ tracingstats := 1 ;
+ tracingoutput := 1 ;
+ tracingmacros := 1 ;
+ tracingrestores := 1 ;
+enddef ;
+
+def tracingall = % turns on every form of tracing
+ tracingonline := 1 ;
+ showstopping := 1 ;
+ loggingall ;
+enddef ;
+
+def tracingnone = % turns off every form of tracing
+ tracingcommands := 0 ;
+ tracingtitles := 0 ;
+ tracingequations := 0 ;
+ tracingcapsules := 0 ;
+ tracingspecs := 0 ;
+ tracingchoices := 0 ;
+ tracinglostchars := 0 ;
+ tracingstats := 0 ;
+ tracingoutput := 0 ;
+ tracingmacros := 0 ;
+ tracingrestores := 0 ;
+enddef ;
+
+%% dash patterns
+
+vardef dashpattern(text t) =
+ save on, off, w ;
+ let on = _on_ ;
+ let off = _off_ ;
+ w = 0 ;
+ nullpicture t
+enddef ;
+
+tertiarydef p _on_ d =
+ begingroup save pic ;
+ picture pic;
+ pic = p ;
+ addto pic doublepath (w,w) .. (w+d,w) ;
+ w := w + d ;
+ pic shifted (0,d)
+ endgroup
+enddef ;
+
+tertiarydef p _off_ d =
+ begingroup w := w + d ;
+ p shifted (0,d)
+ endgroup
+enddef ;
+
+%% basic constants and mathematical macros
+
+% numeric constants
+
+newinternal eps, epsilon, infinity, _ ;
+
+eps := .00049 ; % this is a pretty small positive number
+epsilon := 1/256/256 ; % but this is the smallest
+infinity := 4095.99998 ; % and this is the largest
+_ := -1 ; % internal constant to make macros unreadable but shorter
+
+% linejoin and linecap types
+
+newinternal mitered, rounded, beveled, butt, squared ;
+
+mitered := 0 ; rounded := 1 ; beveled := 2 ;
+butt := 0 ; rounded := 1 ; squared := 2 ;
+
+% pair constants
+
+pair right, left, up, down, origin;
+
+origin = (0,0) ;
+up = -down = (0,1) ;
+right = -left = (1,0) ;
+
+% path constants
+
+path quartercircle, halfcircle, fullcircle, unitsquare ;
+
+fullcircle = makepath pencircle ;
+halfcircle = subpath (0,4) of fullcircle ;
+quartercircle = subpath (0,2) of fullcircle ;
+unitsquare = (0,0) -- (1,0) -- (1,1) -- (0,1) -- cycle ;
+
+% transform constants
+
+transform identity ;
+
+for z=origin,right,up :
+ z transformed identity = z ;
+endfor
+
+% color constants (all in rgb color space)
+
+color black, white, red, green, blue, cyan, magenta, yellow, background;
+
+black := (0,0,0) ;
+white := (1,1,1) ;
+red := (1,0,0) ;
+green := (0,1,0) ;
+blue := (0,0,1) ;
+cyan := (0,1,1) ;
+magenta := (1,0,1) ;
+yellow := (1,1,0) ;
+
+background := white ; % obsolete
+
+let graypart = greypart ;
+let graycolor = greycolor ;
+
+% picture constants
+
+picture blankpicture, evenly, withdots ;
+
+blankpicture = nullpicture ; % display blankpicture...
+evenly = dashpattern(on 3 off 3) ; % dashed evenly
+withdots = dashpattern(off 2.5 on 0 off 2.5) ; % dashed withdots
+
+% string constants
+
+string ditto, EOF ;
+
+ditto = char 34 ; % ASCII double-quote mark
+EOF = char 0 ; % end-of-file for readfrom and write..to
+
+% pen constants
+
+pen pensquare, penrazor, penspeck ;
+
+pensquare = makepen(unitsquare shifted -(.5,.5)) ;
+penrazor = makepen((-.5,0) -- (.5,0) -- cycle) ;
+penspeck = pensquare scaled eps ;
+
+% nullary operators
+
+vardef whatever =
+ save ? ;
+ ?
+enddef ;
+
+% unary operators
+
+let abs = length ;
+
+vardef round primary u =
+ if numeric u :
+ floor(u+.5)
+ elseif pair u :
+ (round xpart u, round ypart u)
+ else :
+ u
+ fi
+enddef ;
+
+vardef ceiling primary x =
+ -floor(-x)
+enddef ;
+
+vardef byte primary s =
+ if string s :
+ ASCII
+ fi s
+enddef ;
+
+vardef dir primary d =
+ right rotated d
+enddef ;
+
+vardef unitvector primary z =
+ z/abs z
+enddef ;
+
+vardef inverse primary T =
+ transform T_ ;
+ T_ transformed T = identity ;
+ T_
+enddef ;
+
+vardef counterclockwise primary c =
+ if turningnumber c <= 0 :
+ reverse
+ fi c
+enddef ;
+
+vardef tensepath expr r =
+ for k=0 upto length r - 1 :
+ point k of r ---
+ endfor
+ if cycle r :
+ cycle
+ else :
+ point infinity of r
+ fi
+enddef ;
+
+vardef center primary p =
+ .5[llcorner p, urcorner p]
+enddef ;
+
+% binary operators
+
+primarydef x mod y =
+ (x-y*floor(x/y))
+enddef ;
+
+primarydef x div y =
+ floor(x/y)
+enddef ;
+
+primarydef w dotprod z =
+ (xpart w * xpart z + ypart w * ypart z)
+enddef ;
+
+primarydef x**y =
+ if y=2 :
+ x*x
+ else :
+ takepower y of x
+ fi
+enddef ;
+
+def takepower expr y of x =
+ if x>0 :
+ mexp(y*mlog x)
+ elseif (x=0) and (y>0) :
+ 0
+ else :
+ 1
+ if y = floor y :
+ if y >= 0 :
+ for n=1 upto y :
+ *x
+ endfor
+ else :
+ for n=-1 downto y :
+ /x
+ endfor
+ fi
+ else :
+ hide(errmessage "Undefined power: " & decimal x&"**"&decimal y)
+ fi
+ fi
+enddef ;
+
+vardef direction expr t of p =
+ postcontrol t of p - precontrol t of p
+enddef ;
+
+vardef directionpoint expr z of p =
+ a_ := directiontime z of p ;
+ if a_ < 0 :
+ errmessage("The direction doesn't occur") ;
+ fi
+ point a_ of p
+enddef ;
+
+secondarydef p intersectionpoint q =
+ begingroup
+ save x_, y_ ;
+ (x_,y_) = p intersectiontimes q ;
+ if x_ < 0 :
+ errmessage("The paths don't intersect") ;
+ origin
+ else :
+ .5[point x_ of p, point y_ of q]
+ fi
+ endgroup
+enddef ;
+
+tertiarydef p softjoin q =
+ begingroup
+ c_ := fullcircle scaled 2join_radius shifted point 0 of q ;
+ a_ := ypart(c_ intersectiontimes p) ;
+ b_ := ypart(c_ intersectiontimes q) ;
+ if a_ < 0 :
+ point 0 of p{direction 0 of p}
+ else :
+ subpath(0,a_) of p
+ fi
+ ...
+ if b_ < 0 :
+ {direction infinity of q} point infinity of q
+ else :
+ subpath(b_,infinity) of q
+ fi
+ endgroup
+enddef ;
+
+newinternal join_radius, a_, b_ ; path c_ ;
+
+path cuttings ; % what got cut off
+
+tertiarydef a cutbefore b = % tries to cut as little as possible
+ begingroup
+ save t ;
+ (t, whatever) = a intersectiontimes b ;
+ if t < 0 :
+ cuttings := point 0 of a ;
+ a
+ else :
+ cuttings := subpath (0,t) of a ;
+ subpath (t,length a) of a
+ fi
+ endgroup
+enddef ;
+
+tertiarydef a cutafter b =
+ reverse (reverse a cutbefore b)
+ hide(cuttings := reverse cuttings)
+enddef ;
+
+% special operators
+
+vardef incr suffix $ = $:=$+1; $ enddef ;
+vardef decr suffix $ = $:=$-1; $ enddef ;
+
+def reflectedabout(expr w,z) = % reflects about the line w..z
+ transformed
+ begingroup
+ transform T_ ;
+ w transformed T_ = w ;
+ z transformed T_ = z ;
+ xxpart T_ = -yypart T_ ;
+ xypart T_ = yxpart T_ ; % T_ is a reflection
+ T_
+ endgroup
+enddef ;
+
+def rotatedaround(expr z, d) = % rotates d degrees around z
+ shifted -z rotated d shifted z
+enddef ;
+
+let rotatedabout = rotatedaround ; % for roundabout people
+
+vardef min(expr u)(text t) = % t is a list of numerics, pairs, or strings
+ save u_ ;
+ setu_ u ;
+ for uu = t :
+ if uu < u_ :
+ u_ := uu ;
+ fi
+ endfor
+ u_
+enddef ;
+
+vardef max(expr u)(text t) = % t is a list of numerics, pairs, or strings
+ save u_ ;
+ setu_ u ;
+ for uu = t :
+ if uu > u_ :
+ u_ := uu ;
+ fi
+ endfor
+ u_
+enddef ;
+
+def setu_ primary u =
+ if pair u :
+ pair u_
+ elseif string u :
+ string u_
+ fi ;
+ u_=u
+enddef ;
+
+def flex(text t) = % t is a list of pairs
+ hide (
+ n_ := 0 ;
+ for z=t :
+ z_[incr n_] := z ;
+ endfor
+ dz_ := z_[n_]-z_1
+ )
+ z_1 for k=2 upto n_-1 :
+ ... z_[k]{dz_}
+ endfor ... z_[n_]
+enddef ;
+
+newinternal n_; pair z_[],dz_;
+
+def superellipse(expr r,t,l,b,s) =
+ r { up } ... (s[xpart t,xpart r],s[ypart r,ypart t]) { t-r } ...
+ t { left } ... (s[xpart t,xpart l],s[ypart l,ypart t]) { l-t } ...
+ l { down } ... (s[xpart b,xpart l],s[ypart l,ypart b]) { b-l } ...
+ b { right } ... (s[xpart b,xpart r],s[ypart r,ypart b]) { r-b } ... cycle enddef ;
+
+vardef interpath(expr a,p,q) =
+ for t=0 upto length p-1 :
+ a[point t of p, point t of q] .. controls a[postcontrol t of p, postcontrol t of q] and a[precontrol t+1 of p, precontrol t+1 of q] ..
+ endfor
+ if cycle p :
+ cycle
+ else :
+ a[point infinity of p, point infinity of q]
+ fi
+enddef ;
+
+vardef solve@#(expr true_x,false_x)= % @#(true_x)=true, @#(false_x)=false
+ tx_:=true_x; fx_:=false_x;
+ forever :
+ x_ := .5[tx_,fx_] ;
+ exitif abs(tx_-fx_) <= tolerance ;
+ if @#(x_) :
+ tx_
+ else :
+ fx_
+ fi := x_ ;
+ endfor
+ x_ % now x_ is near where @# changes from true to false
+enddef ;
+
+newinternal tolerance, tx_, fx_, x_ ;
+
+tolerance := .01 ;
+
+vardef buildcycle(text ll) =
+ save ta_, tb_, k_, i_, pp_ ; path pp_[] ;
+ k_ = 0 ;
+ for q=ll :
+ pp_[incr k_] = q ;
+ endfor
+ i_ = k_ ;
+ for i=1 upto k_ :
+ (ta_[i], length pp_[i_]-tb_[i_]) = pp_[i] intersectiontimes reverse pp_[i_] ;
+ if ta_[i]<0 :
+ errmessage("Paths "& decimal i &" and "& decimal i_ &" don't intersect") ;
+ fi
+ i_ := i;
+ endfor
+ for i=1 upto k_ :
+ subpath (ta_[i],tb_[i]) of pp_[i] ..
+ endfor
+ cycle
+enddef ;
+
+%% units of measure
+
+mm := 2.83464 ;
+pt := 0.99626 ;
+dd := 1.06601 ;
+bp := 1 ;
+cm := 28.34645 ;
+pc := 11.95517 ;
+cc := 12.79213 ;
+in := 72 ;
+
+vardef magstep primary m = % obsolete
+ mexp(46.67432m)
+enddef ;
+
+%% macros for drawing and filling
+
+def drawoptions(text t) =
+ def _op_ = t enddef
+enddef ;
+
+% parameters that effect drawing
+
+linejoin := rounded ;
+linecap := rounded ;
+miterlimit := 10 ;
+
+drawoptions() ;
+
+pen currentpen ;
+picture currentpicture ;
+
+def fill expr c =
+ addto currentpicture contour c _op_
+enddef ;
+
+def draw expr p =
+ addto currentpicture
+ if picture p :
+ also p
+ else :
+ doublepath p withpen currentpen
+ fi
+ _op_
+enddef ;
+
+def filldraw expr c =
+ addto currentpicture contour c withpen currentpen _op_
+enddef ;
+
+def drawdot expr z =
+ addto currentpicture contour makepath currentpen shifted z _op_
+enddef ;
+
+def unfill expr c = fill c withcolor background enddef ;
+def undraw expr p = draw p withcolor background enddef ;
+def unfilldraw expr c = filldraw c withcolor background enddef ;
+def undrawdot expr z = drawdot z withcolor background enddef ;
+
+def erase text t =
+ def _e_ =
+ withcolor background hide(def _e_ = enddef ;)
+ enddef ;
+ t _e_
+enddef ;
+
+def _e_ = enddef ;
+
+def cutdraw text t =
+ begingroup
+ interim linecap := butt ;
+ draw t _e_ ;
+ endgroup
+enddef ;
+
+vardef image(text t) =
+ save currentpicture ;
+ picture currentpicture ;
+ currentpicture := nullpicture ;
+ t ;
+ currentpicture
+enddef ;
+
+def pickup secondary q =
+ if numeric q :
+ numeric_pickup_
+ else :
+ pen_pickup_
+ fi q
+enddef ;
+
+def numeric_pickup_ primary q =
+ if unknown pen_[q] :
+ errmessage "Unknown pen" ;
+ clearpen
+ else :
+ currentpen := pen_ [q] ;
+ pen_lft := pen_lft_[q] ;
+ pen_rt := pen_rt_ [q] ;
+ pen_top := pen_top_[q] ;
+ pen_bot := pen_bot_[q] ;
+ currentpen_path := pen_path_[q]
+ fi ;
+enddef ;
+
+def pen_pickup_ primary q =
+ currentpen := q ;
+ pen_lft :=xpart penoffset down of currentpen ;
+ pen_rt :=xpart penoffset up of currentpen ;
+ pen_top :=ypart penoffset left of currentpen ;
+ pen_bot :=ypart penoffset right of currentpen ;
+ path currentpen_path ;
+enddef ;
+
+newinternal pen_lft, pen_rt, pen_top, pen_bot, pen_count_ ;
+
+vardef savepen =
+ pen_[incr pen_count_] = currentpen ;
+ pen_lft_ [pen_count_] = pen_lft ;
+ pen_rt_ [pen_count_] = pen_rt ;
+ pen_top_ [pen_count_] = pen_top ;
+ pen_bot_ [pen_count_] = pen_bot ;
+ pen_path_[pen_count_] = currentpen_path ;
+ pen_count_
+enddef ;
+
+def clearpen = currentpen:=nullpen;
+ pen_lft := pen_rt := pen_top := pen_bot := 0 ;
+ path currentpen_path ;
+enddef ;
+
+def clear_pen_memory =
+ pen_count_ := 0 ;
+ numeric pen_lft_[], pen_rt_[], pen_top_[], pen_bot_[] ;
+ pen currentpen, pen_[];
+ path currentpen_path, pen_path_[] ;
+enddef ;
+
+vardef lft primary x = x + if pair x: (pen_lft,0) else: pen_lft fi enddef ;
+vardef rt primary x = x + if pair x: (pen_rt,0) else: pen_rt fi enddef ;
+vardef top primary y = y + if pair y: (0,pen_top) else: pen_top fi enddef ;
+vardef bot primary y = y + if pair y: (0,pen_bot) else: pen_bot fi enddef ;
+
+vardef penpos@#(expr b,d) =
+ (x@#r-x@#l,y@#r-y@#l) = (b,0) rotated d ;
+ x@# = .5(x@#l+x@#r) ;
+ y@# = .5(y@#l+y@#r) ; % ; added HH
+enddef ;
+
+path path_.l, path_.r ;
+
+def penstroke text t =
+ forsuffixes e = l, r :
+ path_.e := t ;
+ endfor
+ fill path_.l -- reverse path_.r -- cycle
+enddef ;
+
+%% High level drawing commands
+
+newinternal ahlength, ahangle ;
+
+ahlength := 4 ; % default arrowhead length 4bp
+ahangle := 45 ; % default head angle 45 degrees
+
+vardef arrowhead expr p =
+ save q, e ; path q ; pair e ;
+ e = point length p of p ;
+ q = gobble(p shifted -e cutafter makepath(pencircle scaled 2ahlength)) cuttings ;
+ (q rotated .5ahangle & reverse q rotated -.5ahangle -- cycle) shifted e
+enddef ;
+
+path _apth ;
+
+def drawarrow expr p = _apth := p ; _finarr enddef ;
+def drawdblarrow expr p = _apth := p ; _findarr enddef ;
+
+def _finarr text t =
+ draw _apth t ;
+ filldraw arrowhead _apth t
+enddef ;
+
+def _findarr text t =
+ draw _apth t ;
+ fill arrowhead _apth withpen currentpen t ;
+ fill arrowhead reverse _apth withpen currentpen t ; % ; added HH
+enddef ;
+
+%% macros for labels
+
+newinternal bboxmargin ;
+
+bboxmargin := 2bp ; % this can bite you
+
+vardef bbox primary p =
+ llcorner p - ( bboxmargin, bboxmargin) --
+ lrcorner p + ( bboxmargin,-bboxmargin) --
+ urcorner p + ( bboxmargin, bboxmargin) --
+ ulcorner p + (-bboxmargin, bboxmargin) -- cycle
+enddef ;
+
+string defaultfont ; newinternal defaultscale, labeloffset ;
+
+defaultfont := "cmr10" ;
+defaultscale := 1 ;
+labeloffset := 3bp ;
+
+vardef thelabel@#(expr s,z) = % Position s near z
+ save p ; picture p ;
+ if picture s :
+ p = s
+ else :
+ p = s infont defaultfont scaled defaultscale
+ fi ;
+ p shifted (z + labeloffset*laboff@# - ( labxf@#*lrcorner p + labyf@#*ulcorner p + (1-labxf@#-labyf@#)*llcorner p) )
+enddef ;
+
+def label =
+ draw thelabel
+enddef ;
+
+newinternal dotlabeldiam ;
+
+dotlabeldiam := 3bp ;
+
+vardef dotlabel@#(expr s,z) text t_ =
+ label@#(s,z) t_ ;
+ % label@#(s,z) ;
+ interim linecap := rounded ;
+ draw z withpen pencircle scaled dotlabeldiam t_ ;
+enddef ;
+
+def makelabel =
+ dotlabel
+enddef ;
+
+% this will be overloaded
+
+pair laboff, laboff.lft, laboff.rt, laboff.top, laboff.bot ;
+pair laboff.ulft, laboff.llft, laboff.urt, laboff.lrt ;
+
+laboff = (0,0) ; labxf = .5 ; labyf = .5 ;
+laboff.lft = (-1,0) ; labxf.lft = 1 ; labyf.lft = .5 ;
+laboff.rt = (1,0) ; labxf.rt = 0 ; labyf.rt = .5 ;
+laboff.bot = (0,-1) ; labxf.bot = .5 ; labyf.bot = 1 ;
+laboff.top = (0,1) ; labxf.top = .5 ; labyf.top = 0 ;
+laboff.ulft = (-.7,.7) ; labxf.ulft = 1 ; labyf.ulft = 0 ;
+laboff.urt = (.7,.7) ; labxf.urt = 0 ; labyf.urt = 0 ;
+laboff.llft = -(.7,.7) ; labxf.llft = 1 ; labyf.llft = 1 ;
+laboff.lrt = (.7,-.7) ; labxf.lrt = 0 ; labyf.lrt = 1 ;
+
+vardef labels@#(text t) =
+ forsuffixes $=t :
+ label@#(str$,z$) ;
+ endfor
+enddef ;
+
+% til lhere
+
+vardef dotlabels@#(text t) =
+ forsuffixes $=t:
+ dotlabel@#(str$,z$) ;
+ endfor
+enddef ;
+
+vardef penlabels@#(text t) =
+ forsuffixes $$=l,,r :
+ forsuffixes $=t :
+ makelabel@#(str$.$$,z$.$$) ;
+ endfor
+ endfor
+enddef ;
+
+def range expr x =
+ numtok[x]
+enddef ;
+
+def numtok suffix x =
+ x
+enddef ;
+
+tertiarydef m thru n =
+ m for x=m+1 step 1 until n :
+ , numtok[x]
+ endfor
+enddef ;
+
+%% Overall administration
+
+string extra_beginfig, extra_endfig ;
+
+extra_beginfig := "" ;
+extra_endfig := "" ;
+
+def beginfig(expr c) =
+ begingroup
+ charcode := c ;
+ clearxy ;
+ clearit ;
+ clearpen ;
+ pickup defaultpen ;
+ drawoptions() ;
+ scantokens extra_beginfig ;
+enddef ;
+
+def endfig =
+ ; % added by HH
+ scantokens extra_endfig ;
+ shipit ;
+ endgroup
+enddef ;
+
+%% last-minute items
+
+vardef z@# =
+ (x@#,y@#)
+enddef ;
+
+def clearxy =
+ save x, y
+enddef ;
+
+def clearit =
+ currentpicture := nullpicture
+enddef ;
+
+def shipit =
+ shipout currentpicture
+enddef ;
+
+let bye = end ;
+outer end, bye ;
+
+clear_pen_memory ; % initialize the savepen mechanism
+clearit ;
+
+% set default line width
+
+newinternal defaultpen ;
+
+pickup pencircle scaled .5bp ;
+
+defaultpen := savepen ;
diff --git a/Master/texmf-dist/metapost/context/base/mp-butt.mp b/Master/texmf-dist/metapost/context/base/mp-butt.mp
deleted file mode 100644
index cf580211e59..00000000000
--- a/Master/texmf-dist/metapost/context/base/mp-butt.mp
+++ /dev/null
@@ -1,75 +0,0 @@
-%D \module
-%D [ file=mp-butt.mp,
-%D version=2000.05.31,
-%D title=\CONTEXT\ \METAPOST\ graphics,
-%D subtitle=buttons,
-%D author=Hans Hagen,
-%D date=\currentdate,
-%D copyright={PRAGMA / Hans Hagen \& Ton Otten}]
-%C
-%C This module is part of the \CONTEXT\ macro||package and is
-%C therefore copyrighted by \PRAGMA. See licen-en.pdf for
-%C details.
-
-if unknown context_tool : input mp-tool ; fi ;
-if known context_butt : endinput ; fi ;
-
-boolean context_butt ; context_butt := true ;
-
-def some_button (expr button_type ,
- button_size ,
- button_linecolor ,
- button_fillcolor ) =
-
- numeric button_linewidth ; button_linewidth := button_size/10 ;
-
- drawoptions (withpen pencircle scaled button_linewidth
- withcolor button_linecolor) ;
-
- path p ; p := unitsquare scaled button_size ;
- numeric d ; d := button_size ;
- numeric l ; l := button_linewidth ;
-
- fill p withcolor button_fillcolor ; draw p ;
-
- if button_type=101 :
- draw (d-2l,2l)--(2l,.5d)--(d-2l,d-2l)--cycle ;
- elseif button_type=102 :
- draw (2l,2l)--(d-2l,.5d)--(2l,d-2l)--cycle ;
- elseif button_type=103 :
- for i=2l step 2l until d-2l :
- draw (2l,i)--(2l ,i) ;
- draw (4l,i)--(d-2l,i) ;
- endfor ;
- elseif button_type=104 :
- for i=2l step 2l until d-2l :
- draw (2l ,i)--(d/2-l,i) ;
- draw (d/2+l,i)--(d-2l ,i) ;
- endfor ;
- elseif button_type=105 :
- fill fullcircle scaled (.2d) shifted (.5d,.7d) ;
- fill fullcircle xscaled (.6d) yscaled d shifted (.5d,0) ;
- clip currentpicture to p ;
- draw p ;
- elseif button_type=106 :
- draw (2l,2l)--(d-2l,d-2l) ;
- draw (d-2l,2l)--(2l,d-2l) ;
- elseif button_type=107 :
- p := (3l,d-2l)--(d-3l,d-2l)--(.5d,4l)--cycle ;
- fill p ; draw p ;
- draw (.5d,2l) ;
- elseif button_type=108 :
- draw (.5d,2l)--(d-2l,d-2l)--(2l,d-2l)--cycle ;
- elseif button_type=109 :
- draw (.5d,d-2l)--(d-2l,2l)--(2l,2l)--cycle ;
- elseif button_type=110 :
- button_linewidth := button_linewidth/2 ;
- draw p enlarged (-2l,-l) ;
- for i=2l step l until d-2l :
- draw (3l,i)--(d-3l,i) ;
- endfor ;
- fi ;
-
-enddef ;
-
-endinput ;
diff --git a/Master/texmf-dist/metapost/context/base/mp-butt.mpii b/Master/texmf-dist/metapost/context/base/mp-butt.mpii
new file mode 100644
index 00000000000..5c1edd42ebb
--- /dev/null
+++ b/Master/texmf-dist/metapost/context/base/mp-butt.mpii
@@ -0,0 +1,77 @@
+%D \module
+%D [ file=mp-butt.mp,
+%D version=2000.05.31,
+%D title=\CONTEXT\ \METAPOST\ graphics,
+%D subtitle=buttons,
+%D author=Hans Hagen,
+%D date=\currentdate,
+%D copyright={PRAGMA / Hans Hagen \& Ton Otten}]
+%C
+%C This module is part of the \CONTEXT\ macro||package and is
+%C therefore copyrighted by \PRAGMA. See licen-en.pdf for
+%C details.
+
+if known context_butt : endinput ; fi ;
+
+boolean context_butt ; context_butt := true ;
+
+def predefinedbutton (expr button_type, button_size, button_linecolor, button_fillcolor) =
+
+ begingroup ;
+
+ save button_linewidth, p, d, l ;
+
+ numeric button_linewidth ; button_linewidth := button_size/10 ;
+
+ drawoptions (withpen pencircle scaled button_linewidth withcolor button_linecolor) ;
+
+ path p ; p := unitsquare scaled button_size ;
+ numeric d ; d := button_size ;
+ numeric l ; l := button_linewidth ;
+
+ fill p withcolor button_fillcolor ;
+ draw p ;
+
+ if button_type = 101 :
+ draw (d-2l,2l)--(2l,.5d)--(d-2l,d-2l)--cycle ;
+ elseif button_type = 102 :
+ draw (2l,2l)--(d-2l,.5d)--(2l,d-2l)--cycle ;
+ elseif button_type = 103 :
+ for i=2l step 2l until d-2l :
+ draw (2l,i)--(2l ,i) ;
+ draw (4l,i)--(d-2l,i) ;
+ endfor ;
+ elseif button_type = 104 :
+ for i=2l step 2l until d-2l :
+ draw (2l ,i)--(d/2-l,i) ;
+ draw (d/2+l,i)--(d-2l ,i) ;
+ endfor ;
+ elseif button_type = 105 :
+ fill fullcircle scaled (.2d) shifted (.5d,.7d) ;
+ fill fullcircle xscaled (.6d) yscaled d shifted (.5d,0) ;
+ clip currentpicture to p ;
+ draw p ;
+ elseif button_type = 106 :
+ draw (2l,2l)--(d-2l,d-2l) ;
+ draw (d-2l,2l)--(2l,d-2l) ;
+ elseif button_type = 107 :
+ p := (3l,d-2l)--(d-3l,d-2l)--(.5d,4l)--cycle ;
+ fill p ; draw p ;
+ draw (.5d,2l) ;
+ elseif button_type = 108 :
+ draw (.5d,2l)--(d-2l,d-2l)--(2l,d-2l)--cycle ;
+ elseif button_type = 109 :
+ draw (.5d,d-2l)--(d-2l,2l)--(2l,2l)--cycle ;
+ elseif button_type = 110 :
+ button_linewidth := button_linewidth/2 ;
+ draw p enlarged (-2l,-l) ;
+ for i=2l step l until d-2l :
+ draw (3l,i)--(d-3l,i) ;
+ endfor ;
+ fi ;
+
+ endgroup ;
+
+enddef ;
+
+let some_button = predefinedbutton
diff --git a/Master/texmf-dist/metapost/context/base/mp-butt.mpiv b/Master/texmf-dist/metapost/context/base/mp-butt.mpiv
new file mode 100644
index 00000000000..5c1edd42ebb
--- /dev/null
+++ b/Master/texmf-dist/metapost/context/base/mp-butt.mpiv
@@ -0,0 +1,77 @@
+%D \module
+%D [ file=mp-butt.mp,
+%D version=2000.05.31,
+%D title=\CONTEXT\ \METAPOST\ graphics,
+%D subtitle=buttons,
+%D author=Hans Hagen,
+%D date=\currentdate,
+%D copyright={PRAGMA / Hans Hagen \& Ton Otten}]
+%C
+%C This module is part of the \CONTEXT\ macro||package and is
+%C therefore copyrighted by \PRAGMA. See licen-en.pdf for
+%C details.
+
+if known context_butt : endinput ; fi ;
+
+boolean context_butt ; context_butt := true ;
+
+def predefinedbutton (expr button_type, button_size, button_linecolor, button_fillcolor) =
+
+ begingroup ;
+
+ save button_linewidth, p, d, l ;
+
+ numeric button_linewidth ; button_linewidth := button_size/10 ;
+
+ drawoptions (withpen pencircle scaled button_linewidth withcolor button_linecolor) ;
+
+ path p ; p := unitsquare scaled button_size ;
+ numeric d ; d := button_size ;
+ numeric l ; l := button_linewidth ;
+
+ fill p withcolor button_fillcolor ;
+ draw p ;
+
+ if button_type = 101 :
+ draw (d-2l,2l)--(2l,.5d)--(d-2l,d-2l)--cycle ;
+ elseif button_type = 102 :
+ draw (2l,2l)--(d-2l,.5d)--(2l,d-2l)--cycle ;
+ elseif button_type = 103 :
+ for i=2l step 2l until d-2l :
+ draw (2l,i)--(2l ,i) ;
+ draw (4l,i)--(d-2l,i) ;
+ endfor ;
+ elseif button_type = 104 :
+ for i=2l step 2l until d-2l :
+ draw (2l ,i)--(d/2-l,i) ;
+ draw (d/2+l,i)--(d-2l ,i) ;
+ endfor ;
+ elseif button_type = 105 :
+ fill fullcircle scaled (.2d) shifted (.5d,.7d) ;
+ fill fullcircle xscaled (.6d) yscaled d shifted (.5d,0) ;
+ clip currentpicture to p ;
+ draw p ;
+ elseif button_type = 106 :
+ draw (2l,2l)--(d-2l,d-2l) ;
+ draw (d-2l,2l)--(2l,d-2l) ;
+ elseif button_type = 107 :
+ p := (3l,d-2l)--(d-3l,d-2l)--(.5d,4l)--cycle ;
+ fill p ; draw p ;
+ draw (.5d,2l) ;
+ elseif button_type = 108 :
+ draw (.5d,2l)--(d-2l,d-2l)--(2l,d-2l)--cycle ;
+ elseif button_type = 109 :
+ draw (.5d,d-2l)--(d-2l,2l)--(2l,2l)--cycle ;
+ elseif button_type = 110 :
+ button_linewidth := button_linewidth/2 ;
+ draw p enlarged (-2l,-l) ;
+ for i=2l step l until d-2l :
+ draw (3l,i)--(d-3l,i) ;
+ endfor ;
+ fi ;
+
+ endgroup ;
+
+enddef ;
+
+let some_button = predefinedbutton
diff --git a/Master/texmf-dist/metapost/context/base/mp-char.mp b/Master/texmf-dist/metapost/context/base/mp-char.mpii
index 786c1f904d2..5e7a31c5073 100644
--- a/Master/texmf-dist/metapost/context/base/mp-char.mp
+++ b/Master/texmf-dist/metapost/context/base/mp-char.mpii
@@ -13,9 +13,8 @@
%C therefore copyrighted by \PRAGMA. See licen-en.pdf for
%C details.
-if unknown context_tool : input mp-tool ; fi ;
-if unknown context_shap : input mp-shap ; fi ;
-if known context_char : endinput ; fi ;
+if unknown context_shap : input "mp-shap.mpii" ; fi ;
+if known context_flow : endinput ; fi ;
boolean context_char ; context_char := true ;
@@ -37,7 +36,6 @@ grid_width := 60pt ; grid_height := 40pt ;
shape_width := 45pt ; shape_height := 30pt ;
chart_offset := 2pt ;
-
color chart_background_color ; chart_background_color := white ;
%D test mode
@@ -112,6 +110,7 @@ def new_chart =
color xydraw [][] ;
numeric xyline [][] ;
boolean xypeep [][] ;
+ picture xypicture[][] ;
numeric cpath ; cpath := 0 ;
path cpaths [] ;
@@ -234,6 +233,15 @@ def flush_shapes =
endfor ;
enddef ;
+def flush_pictures =
+ for x=1 upto max_x :
+ for y=1 upto max_y :
+ flush_picture (x, y) ;
+ endfor ;
+ endfor ;
+enddef ;
+
+
def draw_connection_point (expr x, y, z) =
pickup pencircle scaled if (z=0): 2 fi xyline[x][y] ;
drawdot xy_bottom(x,y,z,false) scaled_to_grid withcolor (1,0,0) ;
@@ -276,7 +284,7 @@ vardef points_initialized (expr xfrom, yfrom, xto, yto, n) =
fi
enddef ;
-def collapse_points = % this is now an mp-tool macro
+def collapse_points =
% remove redundant points
n := 1 ;
for i=2 upto xypoint:
@@ -451,6 +459,16 @@ def draw_midpoint (expr n) =
endgroup ;
enddef ;
+def flush_picture(expr x, y) =
+ if known xypicture[x][y]:
+ draw xypicture[x][y] shifted xy_offset((x+0.5)*grid_width,(max_y-y+1.5)*grid_height) ;
+ fi ;
+enddef ;
+
+def chart_draw_picture(expr x, y, p) =
+ xypicture[x][y] := p ;
+enddef ;
+
boolean reverse_connection ; reverse_connection := false ;
vardef up_on_grid (expr n) =
@@ -912,6 +930,7 @@ enddef ;
def end_chart =
flush_shapes ;
flush_connections ;
+ flush_pictures ;
cmin_x := cmin_x ;
cmax_x := cmin_x+cmax_x ;
cmin_y := cmin_y-1 ;
@@ -972,28 +991,16 @@ def end_sub_chart =
endgroup ;
enddef ;
-%D done
-
-endinput ;
-
-%D testing
-
-show_shapes(100) ;
-
-end
-
-%D more testing
-
-show_connections ;
-
-begin_chart (1,4,5) ;
- %clip_chart(1,1,1,2) ;
- new_shape (1,1,31) ;
- new_shape (1,2,3) ;
- new_shape (4,4,5) ;
- connect_top_left (1,1,0) (4,4,0) ;
- connect_bottom_top (1,2,0) (4,4,0) ;
- connect_left_right (1,2,0) (1,1,0) ;
-end_chart ;
-
-end
+% show_shapes(100) ;
+%
+% show_connections ;
+%
+% begin_chart (1,4,5) ;
+% %clip_chart(1,1,1,2) ;
+% new_shape (1,1,31) ;
+% new_shape (1,2,3) ;
+% new_shape (4,4,5) ;
+% connect_top_left (1,1,0) (4,4,0) ;
+% connect_bottom_top (1,2,0) (4,4,0) ;
+% connect_left_right (1,2,0) (1,1,0) ;
+% end_chart ;
diff --git a/Master/texmf-dist/metapost/context/base/mp-char.mpiv b/Master/texmf-dist/metapost/context/base/mp-char.mpiv
new file mode 100644
index 00000000000..28fe4151246
--- /dev/null
+++ b/Master/texmf-dist/metapost/context/base/mp-char.mpiv
@@ -0,0 +1,1116 @@
+%D \module
+%D [ file=mp-char.mp,
+%D version=2011.10.1, % 1998.10.10,
+%D title=\CONTEXT\ \METAPOST\ graphics,
+%D subtitle=charts,
+%D author=Hans Hagen,
+%D date=\currentdate,
+%D copyright={PRAGMA / Hans Hagen \& Ton Otten}]
+%C
+%C This module is part of the \CONTEXT\ macro||package and is
+%C therefore copyrighted by \PRAGMA. See licen-en.pdf for
+%C details.
+
+%D This is ancient code .. but I see no need to rewrite it. This is
+%D already a partial rewrite but more could be delegated to \LUA\
+%D when used in \CONTEXT\ but it does not pay off now to look into
+%D that.
+
+%D For historic reason we first build and then flush but we could
+%D as well flush directly which would save us caching.
+
+if unknown context_shap : input "mp-shap.mpiv" ; fi ;
+if known context_flow : endinput ; fi ;
+
+boolean context_flow ; context_flow := true ;
+
+%D settings
+
+numeric flow_grid_width ; flow_grid_width := 60pt ;
+numeric flow_shape_width ; flow_shape_width := 45pt ;
+numeric flow_grid_height ; flow_grid_height := 40pt ;
+numeric flow_shape_height ; flow_shape_height := 30pt ;
+numeric flow_chart_offset ; flow_chart_offset := 2pt ;
+color flow_chart_background_color ; flow_chart_background_color := white ;
+boolean flow_show_mid_points ; flow_show_mid_points := false ;
+boolean flow_show_con_points ; flow_show_con_points := false ;
+boolean flow_show_all_points ; flow_show_all_points := false ;
+numeric flow_shape_line_width ; flow_shape_line_width := 2pt ;
+color flow_shape_line_color ; flow_shape_line_color := .5white ;
+color flow_shape_fill_color ; flow_shape_fill_color := .9white ;
+color flow_connection_line_color ; flow_connection_line_color := .2white ;
+
+numeric flow_connection_line_width ; flow_connection_line_width := flow_shape_line_width ;
+
+numeric flow_connection_smooth_size ; flow_connection_smooth_size := 5pt ;
+numeric flow_connection_arrow_size ; flow_connection_arrow_size := 4pt ;
+numeric flow_connection_dash_size ; flow_connection_dash_size := 3pt ;
+
+numeric flow_max_x ; flow_max_x := 6 ;
+numeric flow_max_y ; flow_max_y := 4 ;
+
+boolean flow_smooth ; flow_smooth := true ;
+boolean flow_peepshape ; flow_peepshape := false ;
+boolean flow_arrowtip ; flow_arrowtip := true ;
+boolean flow_dashline ; flow_dashline := false ;
+boolean flow_forcevalid ; flow_forcevalid := false ;
+boolean flow_touchshape ; flow_touchshape := false ;
+boolean flow_showcrossing ; flow_showcrossing := false ;
+boolean flow_reverse_y ; flow_reverse_y := true ;
+
+picture flow_dash_pattern ; flow_dash_pattern := nullpicture ;
+
+numeric flow_shape_node ; flow_shape_node := 0 ;
+numeric flow_shape_action ; flow_shape_action := 24 ;
+numeric flow_shape_procedure ; flow_shape_procedure := 5 ;
+numeric flow_shape_product ; flow_shape_product := 12 ;
+numeric flow_shape_decision ; flow_shape_decision := 14 ;
+numeric flow_shape_archive ; flow_shape_archive := 19 ;
+numeric flow_shape_loop ; flow_shape_loop := 35 ;
+numeric flow_shape_wait ; flow_shape_wait := 6 ;
+numeric flow_shape_subprocedure ; flow_shape_subprocedure := 20 ;
+numeric flow_shape_singledocument ; flow_shape_singledocument := 32 ;
+numeric flow_shape_multidocument ; flow_shape_multidocument := 33 ;
+numeric flow_shape_right ; flow_shape_right := 66 ;
+numeric flow_shape_left ; flow_shape_left := 67 ;
+numeric flow_shape_up ; flow_shape_up := 68 ;
+numeric flow_shape_down ; flow_shape_down := 69 ;
+
+numeric flow_label_offset ; flow_label_offset := 0 ;
+numeric flow_exit_offset ; flow_exit_offset := 0 ;
+numeric flow_comment_offset ; flow_comment_offset := 0 ;
+
+% vardef some_shape_path (expr type) == imported from mp-shap
+
+def flow_show_shapes(expr n) =
+ flow_begin_chart(n,8,10) ;
+ flow_show_con_points := true ;
+ for i=0 upto 7 :
+ for j=0 upto 9 :
+ flow_new_shape(i+1,j+1,i*10+j);
+ endfor ;
+ endfor ;
+ flow_end_chart ;
+enddef ;
+
+%D connections
+
+def flow_new_chart =
+
+ flow_grid_width := 60pt ;
+ flow_shape_width := 45pt ;
+ flow_grid_height := 40pt ;
+ flow_shape_height := 30pt ;
+ flow_chart_offset := 2pt ;
+ flow_chart_background_color := white ;
+ flow_show_mid_points := false ;
+ flow_show_con_points := false ;
+ flow_show_all_points := false ;
+ flow_shape_line_width := 2pt ;
+ flow_shape_line_color := .5white ;
+ flow_shape_fill_color := .9white ;
+ flow_connection_line_color := .2white ;
+ flow_connection_line_width := flow_shape_line_width ;
+ flow_connection_smooth_size := 5pt ;
+ flow_connection_arrow_size := 4pt ;
+ flow_connection_dash_size := 3pt ;
+ flow_label_offset := 0 ;
+ flow_exit_offset := 0 ;
+ flow_comment_offset := 0 ;
+
+ flow_max_x := 6 ;
+ flow_max_y := 4 ;
+
+ flow_smooth := true ;
+ flow_peepshape := false ;
+ flow_arrowtip := true ;
+ flow_dashline := false ;
+ flow_forcevalid := false ;
+ flow_touchshape := false ;
+ flow_showcrossing := false ;
+ flow_reverse_y := true ;
+
+ flow_dash_pattern := nullpicture ;
+
+ numeric flow_xypoint ; flow_xypoint := 0 ;
+ numeric flow_cpath ; flow_cpath := 0 ;
+
+ pair flow_xypoints [] ;
+ boolean flow_xyfree [][] ;
+ path flow_xypath [][] ;
+ numeric flow_xysx [][] ;
+ numeric flow_xysy [][] ;
+ color flow_xyfill [][] ;
+ color flow_xydraw [][] ;
+ numeric flow_xyline [][] ;
+ boolean flow_xypeep [][] ;
+ picture flow_xytext [][] ;
+ picture flow_xylabel [][] ;
+ picture flow_xyexit [][] ;
+ picture flow_xycomment [][] ;
+ path flow_cpaths [] ;
+ numeric flow_cline [] ;
+ color flow_ccolor [] ;
+ boolean flow_carrow [] ;
+ boolean flow_cdash [] ;
+ boolean flow_ccross [] ;
+ picture flow_tpicture [][] ;
+ picture flow_bpicture [][] ;
+ picture flow_lpicture [][] ;
+ picture flow_rpicture [][] ;
+ path flow_connections[][][] ;
+
+ predefined_shapes[61] := (fullcircle scaled (1.5*predefined_shapes_yradius) xscaled (flow_grid_height/flow_grid_width)) ;
+ predefined_shapes[62] := (fullcircle scaled (2.0*predefined_shapes_yradius) xscaled (flow_grid_height/flow_grid_width)) ;
+
+enddef ;
+
+flow_new_chart ;
+
+def flow_y_pos(expr y) =
+% if flow_reverse_y :
+ flow_max_y + 1 - y
+% else :
+% y
+% fi
+enddef ;
+
+def flow_initialize_grid(expr maxx, maxy) =
+ flow_max_x := maxx ;
+ flow_max_y := maxy ;
+ flow_dsp_x := 0 ;
+ flow_dsp_y := 0 ;
+ for x=1 upto flow_max_x :
+ for y=1 upto flow_max_y :
+ flow_xyfree[x][y] := true ;
+ flow_xyfill[x][y] := flow_shape_fill_color ;
+ flow_xydraw[x][y] := flow_shape_line_color ;
+ flow_xyline[x][y] := flow_shape_line_width ;
+ endfor ;
+ endfor ;
+enddef ;
+
+def flow_scaled_to_grid =
+ xscaled flow_grid_width yscaled flow_grid_height
+enddef ;
+
+def flow_xy_offset(expr x, y) =
+ (x+.5,y+.5)
+enddef ;
+
+def flow_draw_shape(expr x, yy, p, sx, sy) =
+ begingroup ;
+ save y ; numeric y ;
+ y := flow_y_pos(yy) ;
+ flow_xypath [x][y] := (p xscaled sx yscaled sy) shifted flow_xy_offset(x,y) ;
+ flow_xyfree [x][y] := false ;
+ flow_xysx [x][y] := sx ;
+ flow_xysy [x][y] := sy ;
+ flow_xyfill [x][y] := flow_shape_fill_color ;
+ flow_xydraw [x][y] := flow_shape_line_color ;
+ flow_xyline [x][y] := flow_shape_line_width ;
+ flow_xypeep [x][y] := flow_peepshape ;
+ endgroup ;
+enddef ;
+
+vardef flow_i_point (expr x, y, p, t) =
+ begingroup ;
+ save q, ok ; pair q ; boolean ok ;
+ q := flow_xypath[x][y] intersection_point ((p) shifted flow_xy_offset(x,y)) ;
+ ok := true ;
+ if not ok :
+ message (t & " of shape (" & decimal x & "," & decimal y & ") limited") ;
+ fi ;
+ q
+ endgroup
+enddef ;
+
+vardef flow_trimmed (expr x, y, z, t) =
+ if flow_touchshape and t :
+ flow_xyline[x][y]/z
+ else :
+ epsilon
+ fi
+enddef ;
+
+numeric flow_zfactor ; flow_zfactor := 1/3 ;
+
+vardef flow_xy_bottom (expr x, y, z, t) =
+ flow_i_point(x, y, ((0,0)--(0,-2)) shifted (flow_zfactor*z*flow_xysx[x][y],0), "bottom")
+ shifted(0,-flow_trimmed(x,y,flow_grid_height,t))
+enddef ;
+
+vardef flow_xy_top (expr x, y, z, t) =
+ flow_i_point (x, y, ((0,0)--(0,2)) shifted (flow_zfactor*z*flow_xysx[x][y],0), "top")
+ shifted(0,flow_trimmed(x,y,flow_grid_height,t))
+enddef ;
+
+vardef flow_xy_left (expr x, y, z, t) =
+ flow_i_point (x, y, ((0,0)--(-2,0)) shifted (0,flow_zfactor*z*flow_xysy[x][y]), "left")
+ shifted(-flow_trimmed(x,y,flow_grid_width,t),0)
+enddef ;
+
+vardef flow_xy_right (expr x, y, z, t) =
+ flow_i_point (x, y, ((0,0)--(2,0)) shifted (0,flow_zfactor*z*flow_xysy[x][y]), "right")
+ shifted(flow_trimmed(x,y,flow_grid_width,t),0)
+enddef ;
+
+def flow_flush_shapes =
+ for x=1 upto flow_max_x :
+ for y=1 upto flow_max_y :
+ flow_flush_shape(x, y) ;
+ endfor ;
+ endfor ;
+enddef ;
+
+def flow_flush_pictures =
+ for x=1 upto flow_max_x :
+ for y=1 upto flow_max_y :
+ flow_flush_picture(x, y) ;
+ endfor ;
+ endfor ;
+enddef ;
+
+def flow_draw_connection_point(expr x, y, z) =
+ pickup pencircle scaled if (z=0): 2 fi flow_xyline[x][y] ;
+ drawdot flow_xy_bottom(x,y,z,false) flow_scaled_to_grid withcolor (1,0,0) ;
+ drawdot flow_xy_top (x,y,z,false) flow_scaled_to_grid withcolor (0,1,0) ;
+ drawdot flow_xy_left (x,y,z,false) flow_scaled_to_grid withcolor (0,0,1) ;
+ drawdot flow_xy_right (x,y,z,false) flow_scaled_to_grid withcolor (1,1,0) ;
+enddef ;
+
+def flow_flush_shape(expr x, yy) =
+ begingroup ;
+ save y ; numeric y ;
+ y := flow_y_pos(yy) ;
+ if not flow_xyfree[x][y] :
+ pickup pencircle scaled flow_xyline[x][y] ;
+ if flow_xypeep[x][y] :
+ fill (flow_xypath[x][y] peepholed (unitsquare shifted (x,y)))
+ flow_scaled_to_grid withpen pencircle scaled 0
+ withcolor flow_chart_background_color ;
+ else :
+ fill flow_xypath[x][y] flow_scaled_to_grid withcolor flow_xyfill[x][y] ;
+ fi ;
+ draw flow_xypath[x][y] flow_scaled_to_grid withcolor flow_xydraw[x][y] ;
+ if flow_show_con_points or flow_show_all_points :
+ flow_draw_connection_point(x, y, 0) ;
+ fi ;
+ if flow_show_all_points :
+ for i=-1 upto 1 :
+ flow_draw_connection_point(x, y, i) ;
+ endfor ;
+ fi ;
+ fi ;
+ endgroup ;
+enddef ;
+
+vardef flow_points_initialized(expr xfrom, yfrom, xto, yto, n) =
+ if unknown flow_xyfree[xfrom][yfrom] or unknown flow_xyfree[xto][yto] :
+ flow_xypoint := 0 ; false
+ elseif not flow_xyfree[xfrom][yfrom] and not flow_xyfree[xto][yto] :
+ flow_xypoint := n ; true
+ else :
+ flow_xypoint := 0 ; false
+ fi
+enddef ;
+
+def flow_collapse_points = % this can become a core macro
+ begingroup ;
+ % remove redundant points
+ save n ; numeric n ;
+ n := 1 ;
+ for i=2 upto flow_xypoint :
+ if not (flow_xypoints[i] = flow_xypoints[n]) :
+ n := n + 1 ;
+ flow_xypoints[n] := flow_xypoints[i]
+ fi ;
+ endfor ;
+ flow_xypoint := n ;
+ % make straight lines
+ if flow_xypoints[2] = flow_xypoints[flow_xypoint-1] :
+ flow_xypoints[3] := flow_xypoints[flow_xypoint] ;
+ flow_xypoint := 3 ;
+ fi ;
+ endgroup ;
+enddef ;
+
+vardef flow_smooth_connection(expr a,b) =
+ if ypart a = ypart b :
+ a shifted ( if xpart a >= xpart b : - fi (flow_connection_smooth_size/flow_grid_width ),0)
+ else :
+ a shifted (0,if ypart a >= ypart b : - fi (flow_connection_smooth_size/flow_grid_height) )
+ fi
+enddef ;
+
+vardef flow_trim_points =
+ begingroup
+ save p, a, b, d, i ; numeric a, b ; path p ; pair d ;
+ p := for i=1 upto flow_xypoint-1 : flow_xypoints[i]-- endfor flow_xypoints[flow_xypoint] ;
+ if flow_touchshape :
+ a := flow_shape_line_width/flow_grid_width ;
+ b := flow_shape_line_width/flow_grid_height ;
+ else :
+ a := epsilon ;
+ b := epsilon ;
+ fi ;
+ d := direction infinity of p ;
+ flow_xypoints[flow_xypoint] := flow_xypoints[flow_xypoint] shifted
+ if xpart d < 0 : (+a,0) ;
+ elseif xpart d > 0 : (-a,0) ;
+ elseif ypart d < 0 : (0,+b) ;
+ elseif ypart d > 0 : (0,-b) ;
+ else : origin ;
+ fi ;
+ d := direction 0 of p ;
+ flow_xypoints[1] := flow_xypoints[1] shifted
+ if xpart d < 0 : (-a,0) ;
+ elseif xpart d > 0 : (+a,0) ;
+ elseif ypart d < 0 : (0,-b) ;
+ elseif ypart d > 0 : (0,+b) ;
+ else : origin ;
+ fi ;
+ endgroup
+enddef ;
+
+vardef flow_trim_points = enddef ;
+
+vardef flow_connection_path =
+ if flow_reverse_connection : reverse fi (flow_xypoints[1] --
+ for i=2 upto flow_xypoint-1 :
+ if flow_smooth :
+ flow_smooth_connection(flow_xypoints[i],flow_xypoints[i-1]) ..
+ controls flow_xypoints[i] and flow_xypoints[i] ..
+ flow_smooth_connection(flow_xypoints[i],flow_xypoints[i+1]) --
+ else :
+ flow_xypoints[i] --
+ fi
+ endfor
+ flow_xypoints[flow_xypoint])
+enddef ;
+
+def flow_draw_connection(expr i,xfrom,yfrom,xto,yto) = % 'i' is a comment reference
+ if flow_xypoint > 0 :
+ flow_collapse_points ;
+ flow_trim_points ;
+ flow_cpath := flow_cpath + 1 ; % maybe also store as x,y
+ flow_cpaths[flow_cpath] := flow_connection_path flow_scaled_to_grid ;
+ flow_cline[flow_cpath] := flow_connection_line_width ;
+ flow_ccolor[flow_cpath] := flow_connection_line_color ;
+ flow_carrow[flow_cpath] := flow_arrowtip ;
+ flow_cdash[flow_cpath] := flow_dashline ;
+ flow_ccross[flow_cpath] := flow_showcrossing ;
+ if flow_reverse_connection :
+ flow_connections[xto] [yto] [i] := flow_cpaths[flow_cpath] ;
+ else :
+ flow_connections[xfrom][yfrom][i] := flow_cpaths[flow_cpath] ;
+ fi ;
+ else :
+ message("no connection defined") ;
+ fi ;
+ flow_reverse_connection := false ;
+enddef ;
+
+def flow_flush_connections = % protect locals
+ begingroup ;
+ save ip, crossing, cp ; numeric ip ; boolean crossing ; path cp ;
+ ahlength := flow_connection_arrow_size ;
+ flow_dash_pattern := dashpattern(on flow_connection_dash_size off flow_connection_dash_size) ;
+ for i=1 upto flow_cpath :
+ if flow_ccross[i] :
+ crossing := false ;
+ for j=1 upto i :
+ if not (point infinity of flow_cpaths[i] = point infinity of flow_cpaths[j]) :
+ ip := flow_cpaths[i] intersection_point flow_cpaths[j] ;
+ if intersection_found : crossing := true fi ;
+ fi ;
+ endfor ;
+ if crossing :
+ pickup pencircle scaled 2flow_cline[i] ;
+ cp := flow_cpaths[i] ;
+ cp := cp cutbefore point .05 length cp of cp ;
+ cp := cp cutafter point .95 length cp of cp ;
+ draw cp withcolor flow_chart_background_color ;
+ fi ;
+ fi ;
+ pickup pencircle scaled flow_cline[i] ;
+ if flow_carrow[i] :
+ if flow_cdash[i] :
+ drawarrow flow_cpaths[i] withcolor flow_ccolor[i] dashed flow_dash_pattern ;
+ else :
+ drawarrow flow_cpaths[i] withcolor flow_ccolor[i] ;
+ fi ;
+ else :
+ if flow_cdash[i] :
+ draw flow_cpaths[i] withcolor flow_ccolor[i] dashed flow_dash_pattern ;
+ else :
+ draw flow_cpaths[i] withcolor flow_ccolor[i] ;
+ fi ;
+ fi ;
+ flow_draw_midpoint(i) ;
+ endfor ;
+ endgroup ;
+enddef ;
+
+def flow_draw_midpoint (expr n) =
+ begingroup
+ save p ; pair p ;
+ p := point .5*length(flow_cpaths[n]) of flow_cpaths[n];
+ pickup pencircle scaled 2flow_cline[n] ;
+ if flow_show_mid_points :
+ drawdot p withcolor .7white ;
+ fi ;
+ endgroup ;
+enddef ;
+
+def flow_flush_picture(expr x, yy) =
+ begingroup ;
+ save y ; numeric y ;
+ y := flow_y_pos(yy) ; % maybe move this to the makers
+ if known flow_xytext[x][y] :
+ draw flow_xytext[x][y] ;
+ fi ;
+ if known flow_xylabel[x][y] :
+ draw flow_xylabel[x][y] ;
+ fi ;
+ if known flow_xyexit[x][y] :
+ draw flow_xyexit[x][y] ;
+ fi ;
+ if known flow_xycomment[x][y] :
+ draw flow_xycomment[x][y] ;
+ fi ;
+ endgroup ;
+enddef ;
+
+vardef flow_offset(expr x, y) =
+ flow_xy_offset((x+0.5)*flow_grid_width,(flow_max_y-y+1.5)*flow_grid_height)
+ shifted (-flow_xyline[x][y]/4,-flow_xyline[x][y]/4) % terrible hack (some compensation)
+enddef ;
+
+def flow_chart_draw_text(expr x, y, p) =
+ if known flow_xytext[x][y] :
+ addto flow_xytext[x][y] also
+ else :
+ flow_xytext[x][y] :=
+ fi
+ p shifted flow_offset(x,y) ;
+enddef ;
+
+def flow_chart_draw_label (expr x, y, loc, txt) =
+ begingroup ;
+ save p, s ; path p ; picture s ;
+ p := fullsquare xscaled flow_grid_width yscaled flow_grid_height ;
+ p := p shifted flow_offset(x,y) ;
+ s := txt ;
+ setbounds s to boundingbox s enlarged flow_label_offset ;
+ if known flow_xylabel[x][y] :
+ addto flow_xylabel[x][y] also
+ else :
+ flow_xylabel[x][y] :=
+ fi
+ if loc = "tr" : anchored.llft(s,0.5[ulcorner p,urcorner p]) ;
+ elseif loc = "t" : anchored.bot (s,0.5[ulcorner p,urcorner p]) ;
+ elseif loc = "tl" : anchored.lrt (s,0.5[ulcorner p,urcorner p]) ;
+ elseif loc = "br" : anchored.ulft(s,0.5[llcorner p,lrcorner p]) ;
+ elseif loc = "b" : anchored.top (s,0.5[llcorner p,lrcorner p]) ;
+ elseif loc = "bl" : anchored.urt (s,0.5[llcorner p,lrcorner p]) ;
+ elseif loc = "lb" : anchored.urt (s,0.5[ulcorner p,llcorner p]) ;
+ elseif loc = "l" : anchored.rt (s,0.5[ulcorner p,llcorner p]) ;
+ elseif loc = "lt" : anchored.lrt (s,0.5[ulcorner p,llcorner p]) ;
+ elseif loc = "rb" : anchored.ulft(s,0.5[urcorner p,lrcorner p]) ;
+ elseif loc = "r" : anchored.lft (s,0.5[urcorner p,lrcorner p]) ;
+ elseif loc = "rt" : anchored.llft(s,0.5[urcorner p,lrcorner p]) ;
+ else : anchored (s,center p) ;
+ fi ;
+ endgroup ;
+enddef ;
+
+def flow_chart_draw_exit (expr x, y, loc, txt) =
+ begingroup ;
+ save p, s ; path p ; picture s ;
+ p := fullsquare xscaled flow_grid_width yscaled flow_grid_height ;
+ p := p shifted flow_offset(x,y) ;
+ s := txt ;
+ setbounds s to boundingbox s enlarged flow_exit_offset ;
+ if known flow_xyexit[x][y] :
+ addto flow_xyexit[x][y] also
+ else :
+ flow_xyexit[x][y] :=
+ fi
+ if loc = "t" : anchored.top(s,0.5[ulcorner p,urcorner p]) ;
+ elseif loc = "b" : anchored.bot(s,0.5[llcorner p,lrcorner p]) ;
+ elseif loc = "l" : anchored.lft(s,0.5[ulcorner p,llcorner p]) ;
+ elseif loc = "r" : anchored.rt (s,0.5[urcorner p,lrcorner p]) ;
+ else : anchored (s,center p) ;
+ fi ;
+ endgroup ;
+enddef ;
+
+def flow_chart_draw_comment (expr x, y, i, loc, len, txt) = % per connection
+ begingroup ;
+ if known flow_connections[x][y][i] :
+ save p, q, s ; path p, q ; picture s ;
+ p := fullsquare xscaled flow_shape_width yscaled flow_shape_height ;
+ p := p shifted flow_offset(x,y) ;
+ q := flow_connections[x][y][i] ; % already relocated
+ s := txt ;
+ setbounds s to boundingbox s enlarged flow_comment_offset ;
+ if known flow_xycomment[x][y] :
+ addto flow_xycomment[x][y] also
+ else :
+ flow_xycomment[x][y] :=
+ fi
+ if loc = "tr" : anchored.llft(s,if len = 0 : 0.5[ulcorner p,urcorner p] else : point len along q fi) ;
+ elseif loc = "t" : anchored.bot (s,if len = 0 : 0.5[ulcorner p,urcorner p] else : point len along q fi) ;
+ elseif loc = "tl" : anchored.lrt (s,if len = 0 : 0.5[ulcorner p,urcorner p] else : point len along q fi) ;
+ elseif loc = "br" : anchored.ulft(s,if len = 0 : 0.5[llcorner p,lrcorner p] else : point len along q fi) ;
+ elseif loc = "b" : anchored.top (s,if len = 0 : 0.5[llcorner p,lrcorner p] else : point len along q fi) ;
+ elseif loc = "bl" : anchored.urt (s,if len = 0 : 0.5[llcorner p,lrcorner p] else : point len along q fi) ;
+ elseif loc = "lb" : anchored.urt (s,if len = 0 : 0.5[ulcorner p,llcorner p] else : point len along q fi) ;
+ elseif loc = "l" : anchored.rt (s,if len = 0 : 0.5[ulcorner p,llcorner p] else : point len along q fi) ;
+ elseif loc = "lt" : anchored.lrt (s,if len = 0 : 0.5[ulcorner p,llcorner p] else : point len along q fi) ;
+ elseif loc = "rb" : anchored.ulft(s,if len = 0 : 0.5[urcorner p,lrcorner p] else : point len along q fi) ;
+ elseif loc = "r" : anchored.lft (s,if len = 0 : 0.5[urcorner p,lrcorner p] else : point len along q fi) ;
+ elseif loc = "rt" : anchored.llft(s,if len = 0 : 0.5[urcorner p,lrcorner p] else : point len along q fi) ;
+ elseif loc = "tr:*" : anchored.llft(s,point 0 of q) ;
+ elseif loc = "t:*" : anchored.bot (s,point 0 of q) ;
+ elseif loc = "tl:*" : anchored.lrt (s,point 0 of q) ;
+ elseif loc = "br:*" : anchored.ulft(s,point 0 of q) ;
+ elseif loc = "b:*" : anchored.top (s,point 0 of q) ;
+ elseif loc = "bl:*" : anchored.urt (s,point 0 of q) ;
+ elseif loc = "lb:*" : anchored.urt (s,point 0 of q) ;
+ elseif loc = "l:*" : anchored.rt (s,point 0 of q) ;
+ elseif loc = "lt:*" : anchored.lrt (s,point 0 of q) ;
+ elseif loc = "rb:*" : anchored.ulft(s,point 0 of q) ;
+ elseif loc = "r:*" : anchored.lft (s,point 0 of q) ;
+ elseif loc = "rt:*" : anchored.llft(s,point 0 of q) ;
+ else : anchored (s,point 0 of q) ;
+ fi ;
+ fi ;
+ endgroup ;
+enddef ;
+
+boolean flow_reverse_connection ; flow_reverse_connection := false ;
+
+vardef flow_up_on_grid (expr n) =
+ (xpart flow_xypoints[n],(ypart flow_xypoints[n]+1) div 1)
+enddef ;
+
+vardef flow_down_on_grid (expr n) =
+ (xpart flow_xypoints[n],(ypart flow_xypoints[n]) div 1)
+enddef ;
+
+vardef flow_left_on_grid (expr n) =
+ ((xpart flow_xypoints[n]) div 1, ypart flow_xypoints[n])
+enddef ;
+
+vardef flow_right_on_grid (expr n) =
+ ((xpart flow_xypoints[n]+1) div 1, ypart flow_xypoints[n])
+enddef ;
+
+vardef flow_x_on_grid (expr n, xfrom, xto, zfrom) =
+ if (xfrom = xto) and not (zfrom = 0) :
+ if (zfrom=1) : flow_right_on_grid(2) else : flow_left_on_grid(2) fi
+ elseif xpart flow_xypoints[1] < xpart flow_xypoints[6] :
+ flow_right_on_grid(n)
+ else :
+ flow_left_on_grid(n)
+ fi
+enddef ;
+
+vardef flow_y_on_grid (expr n, yfrom, yto, zfrom) =
+ if (yfrom = yto) and not (zfrom = 0) :
+ if (zfrom = 1) : flow_up_on_grid(2) else : flow_down_on_grid(2) fi
+ elseif ypart flow_xypoints[1] < ypart flow_xypoints[6] :
+ flow_up_on_grid(n)
+ else :
+ flow_down_on_grid(n)
+ fi
+enddef ;
+
+vardef flow_xy_on_grid (expr n, m) =
+ (xpart flow_xypoints[n], ypart flow_xypoints[m])
+enddef ;
+
+vardef flow_down_to_grid (expr a,b) =
+ (xpart flow_xypoints[a], ypart flow_xypoints[if ypart flow_xypoints[a]<ypart flow_xypoints[b] : a else : b fi])
+enddef ;
+
+vardef flow_up_to_grid (expr a,b) =
+ (xpart flow_xypoints[a], ypart flow_xypoints[if ypart flow_xypoints[a]>ypart flow_xypoints[b] : a else : b fi])
+enddef ;
+
+vardef flow_left_to_grid (expr a,b) =
+ (xpart flow_xypoints[if xpart flow_xypoints[a]<xpart flow_xypoints[b] : a else : b fi], ypart flow_xypoints[a])
+enddef ;
+
+vardef flow_right_to_grid (expr a,b) =
+ (xpart flow_xypoints[if xpart flow_xypoints[a]>xpart flow_xypoints[b] : a else : b fi], ypart flow_xypoints[a])
+enddef ;
+
+vardef flow_valid_connection (expr xfrom, yfrom, xto, yto) =
+ begingroup ;
+ save ok, vc, pp ; boolean ok ; pair vc ; path pp ;
+ save flow_xyfirst, flow_xylast ; pair flow_xyfirst, flow_xylast ;
+ % check for slanted lines
+ ok := true ;
+ for i=1 upto flow_xypoint-1 :
+ if not ((xpart flow_xypoints[i]=xpart flow_xypoints[i+1]) or (ypart flow_xypoints[i]=ypart flow_xypoints[i+1])) :
+ ok := false ;
+ fi ;
+ endfor ;
+ if not ok :
+ % message("slanted");
+ false
+ elseif flow_forcevalid :
+ % message("force");
+ true
+ elseif (xfrom=xto) and (yfrom=yto) :
+ % message("self");
+ false
+ else :
+ % check for crossing shapes
+ flow_xyfirst := flow_xypoints[1] ;
+ flow_xylast := flow_xypoints[flow_xypoint] ;
+ flow_trim_points ;
+ pp := for i=1 upto flow_xypoint-1 : flow_xypoints[i]-- endfor flow_xypoints[flow_xypoint] ;
+ flow_xypoints[1] := flow_xyfirst ;
+ flow_xypoints[flow_xypoint] := flow_xylast ;
+ for i=1 upto flow_max_x :
+ for j=1 upto flow_max_y : % was bug: xfrom,yto
+ if not ( ( (i,j)=(xfrom,yfrom) ) or ( (i,j)=(xto,yto) ) ) :
+ if not flow_xyfree[i][j] :
+ vc := pp intersection_point flow_xypath[i][j] ;
+ if intersection_found :
+ ok := false
+ fi ;
+ fi ;
+ fi ;
+ endfor ;
+ endfor ;
+ % if not ok: message("crossing") ; fi ;
+ ok
+ fi
+ endgroup
+enddef ;
+
+def flow_connect_top_bottom (expr n) (expr xfrom, yyfrom, zfrom) (expr xto, yyto, zto) =
+ yfrom := flow_y_pos(yyfrom) ;
+ yto := flow_y_pos(yyto) ;
+ if flow_points_initialized(xfrom,yfrom,xto,yto,6) :
+ flow_xypoints[1] := flow_xy_top(xfrom,yfrom,zfrom,true) ;
+ flow_xypoints[6] := flow_xy_bottom(xto,yto,zto,true) ;
+ flow_xypoints[2] := flow_up_on_grid(1) ;
+ flow_xypoints[5] := flow_down_on_grid(6) ;
+ flow_xypoints[3] := flow_up_to_grid(2,5) ;
+ flow_xypoints[4] := flow_up_to_grid(2,5) ;
+ if not flow_valid_connection(xfrom,yfrom,xto,yto) :
+ flow_xypoints[3] := flow_x_on_grid(2,xfrom,xto,zfrom) ;
+ flow_xypoints[4] := flow_xy_on_grid(3,5) ;
+ fi ;
+ %%%% begin experiment
+ flow_xypoints[3] := flow_xypoints[3] shifted (flow_dsp_x,0) ;
+ flow_xypoints[4] := flow_xypoints[4] shifted (flow_dsp_x,0) ;
+ if flow_dsp_y>0 :
+ flow_xypoints[2] := flow_xypoints[2] shifted (0,flow_dsp_y) ;
+ flow_xypoints[3] := flow_xypoints[3] shifted (0,flow_dsp_y) ;
+ elseif flow_dsp_y<0 :
+ flow_xypoints[4] := flow_xypoints[4] shifted (0,flow_dsp_y) ;
+ flow_xypoints[5] := flow_xypoints[5] shifted (0,flow_dsp_y) ;
+ fi
+ %%%% end experiment
+ flow_draw_connection(n,xfrom,yyfrom,xto,yyto) ;
+ fi ;
+enddef ;
+
+def flow_connect_left_right (expr n) (expr xfrom,yyfrom,zfrom) (expr xto,yyto,zto) =
+ yfrom := flow_y_pos(yyfrom) ;
+ yto := flow_y_pos(yyto) ;
+ if flow_points_initialized(xfrom,yfrom,xto,yto,6) :
+ flow_xypoints[1] := flow_xy_left(xfrom,yfrom,zfrom,true) ;
+ flow_xypoints[6] := flow_xy_right(xto,yto,zto,true) ;
+ flow_xypoints[2] := flow_left_on_grid(1) ;
+ flow_xypoints[5] := flow_right_on_grid(6) ;
+ flow_xypoints[3] := flow_left_to_grid(2,5) ;
+ flow_xypoints[4] := flow_left_to_grid(2,5) ;
+ if not flow_valid_connection(xfrom,yfrom,xto,yto) :
+ flow_xypoints[3] := flow_y_on_grid(2,yfrom,yto,zfrom) ;
+ flow_xypoints[4] := flow_xy_on_grid(5,3) ;
+ fi ;
+ %%%% begin experiment
+ if flow_dsp_y <> 0 :
+ flow_xypoints[3] := flow_xypoints[3] shifted (0,-flow_dsp_y) ;
+ flow_xypoints[4] := flow_xypoints[4] shifted (0,-flow_dsp_y) ;
+ fi ;
+ %%%% end experiment
+ flow_draw_connection(n,xfrom,yyfrom,xto,yyto) ;
+ fi ;
+enddef ;
+
+def flow_connect_left_top (expr n) (expr xfrom,yyfrom,zfrom) (expr xto,yyto,zto) =
+ yfrom := flow_y_pos(yyfrom) ;
+ yto := flow_y_pos(yyto) ;
+ if flow_points_initialized(xfrom,yfrom,xto,yto,5) :
+ flow_xypoints[1] := flow_xy_left(xfrom,yfrom,zfrom,true) ;
+ flow_xypoints[5] := flow_xy_top(xto,yto,zto,true) ;
+ flow_xypoints[2] := flow_left_on_grid(1) ;
+ flow_xypoints[4] := flow_up_on_grid(5) ;
+ flow_xypoints[3] := flow_left_to_grid(2,5) ;
+ if not flow_valid_connection(xfrom,yfrom,xto,yto) :
+ flow_xypoints[3] := flow_xy_on_grid(2,4) ;
+ fi ;
+ flow_draw_connection(n,xfrom,yyfrom,xto,yyto) ;
+ fi ;
+enddef ;
+
+def flow_connect_left_bottom (expr n) (expr xfrom,yyfrom,zfrom) (expr xto,yyto,zto) =
+ yfrom := flow_y_pos(yyfrom) ;
+ yto := flow_y_pos(yyto) ;
+ if flow_points_initialized(xfrom,yfrom,xto,yto,5) :
+ flow_xypoints[1] := flow_xy_left(xfrom,yfrom,zfrom,true) ;
+ flow_xypoints[5] := flow_xy_bottom(xto,yto,zto,true) ;
+ flow_xypoints[2] := flow_left_on_grid(1) ;
+ flow_xypoints[4] := flow_down_on_grid(5) ;
+ flow_xypoints[3] := flow_left_to_grid(2,5) ;
+ if not flow_valid_connection(xfrom,yfrom,xto,yto) :
+ flow_xypoints[3] := flow_xy_on_grid(2,4) ;
+ fi ;
+ flow_draw_connection(n,xfrom,yyfrom,xto,yyto) ;
+ fi ;
+enddef ;
+
+def flow_connect_right_top (expr n) (expr xfrom,yyfrom,zfrom) (expr xto,yyto,zto) =
+ yfrom := flow_y_pos(yyfrom) ;
+ yto := flow_y_pos(yyto) ;
+ if flow_points_initialized(xfrom,yfrom,xto,yto,5) :
+ flow_xypoints[1] := flow_xy_right(xfrom,yfrom,zfrom,true) ;
+ flow_xypoints[5] := flow_xy_top(xto,yto,zto,true) ;
+ flow_xypoints[2] := flow_right_on_grid(1) ;
+ flow_xypoints[4] := flow_up_on_grid(5) ;
+ flow_xypoints[3] := flow_right_to_grid(2,5) ;
+ if not flow_valid_connection(xfrom,yfrom,xto,yto) :
+ flow_xypoints[3] := flow_xy_on_grid(2,4) ;
+ fi ;
+ flow_draw_connection(n,xfrom,yyfrom,xto,yyto) ;
+ fi ;
+enddef ;
+
+def flow_connect_right_bottom (expr n) (expr xfrom,yyfrom,zfrom) (expr xto,yyto,zto) =
+ yfrom := flow_y_pos(yyfrom) ;
+ yto := flow_y_pos(yyto) ;
+ if flow_points_initialized(xfrom,yfrom,xto,yto,5) :
+ flow_xypoints[1] := flow_xy_right(xfrom,yfrom,zfrom,true) ;
+ flow_xypoints[5] := flow_xy_bottom(xto,yto,zto,true) ;
+ flow_xypoints[2] := flow_right_on_grid(1) ;
+ flow_xypoints[4] := flow_down_on_grid(5) ;
+ flow_xypoints[3] := flow_right_to_grid(2,5) ;
+ if not flow_valid_connection(xfrom,yfrom,xto,yto) :
+ flow_xypoints[3] := flow_xy_on_grid(2,4) ;
+ fi ;
+ %%%% begin experiment
+ flow_xypoints[2] := flow_xypoints[2] shifted (flow_dsp_x,0) ;
+ flow_xypoints[3] := flow_xypoints[3] shifted (flow_dsp_x,0) ;
+ if flow_dsp_y>0 :
+ flow_xypoints[3] := flow_xypoints[3] shifted (0,-flow_dsp_y) ;
+ flow_xypoints[4] := flow_xypoints[4] shifted (0,-flow_dsp_y) ;
+ elseif flow_dsp_y<0 :
+ flow_xypoints[3] := flow_xypoints[3] shifted (0,flow_dsp_y) ;
+ flow_xypoints[4] := flow_xypoints[4] shifted (0,flow_dsp_y) ;
+ fi
+ %%%% end experiment
+ flow_draw_connection(n,xfrom,yyfrom,xto,yyto) ;
+ fi ;
+enddef ;
+
+def flow_connect_left_left (expr n) (expr xfrom,yyfrom,zfrom) (expr xto,yyto,zto) =
+ yfrom := flow_y_pos(yyfrom) ;
+ yto := flow_y_pos(yyto) ;
+ if flow_points_initialized(xfrom,yfrom,xto,yto,6) :
+ flow_xypoints[1] := flow_xy_left(xfrom,yfrom,zfrom,true) ;
+ flow_xypoints[6] := flow_xy_left(xto,yto,zto,true) ;
+ flow_xypoints[2] := flow_left_on_grid(1) ;
+ flow_xypoints[5] := flow_left_on_grid(6) ;
+ flow_xypoints[3] := flow_left_to_grid(2,5) ;
+ flow_xypoints[4] := flow_left_to_grid(5,2) ;
+ if not flow_valid_connection(xfrom,yfrom,xto,yto) :
+ flow_xypoints[3] := flow_y_on_grid(2,yfrom,yto,zfrom) ;
+ flow_xypoints[4] := flow_xy_on_grid(5,3) ;
+ fi ;
+ flow_draw_connection(n,xfrom,yyfrom,xto,yyto) ;
+ fi ;
+enddef ;
+
+def flow_connect_right_right (expr n) (expr xfrom,yyfrom,zfrom) (expr xto,yyto,zto) =
+ yfrom := flow_y_pos(yyfrom) ;
+ yto := flow_y_pos(yyto) ;
+ if flow_points_initialized(xfrom,yfrom,xto,yto,6) :
+ flow_xypoints[1] := flow_xy_right(xfrom,yfrom,zfrom,true) ;
+ flow_xypoints[6] := flow_xy_right(xto,yto,zto,true) ;
+ flow_xypoints[2] := flow_right_on_grid(1) ;
+ flow_xypoints[5] := flow_right_on_grid(6) ;
+ flow_xypoints[3] := flow_right_to_grid(2,5) ;
+ flow_xypoints[4] := flow_right_to_grid(5,2) ;
+ if not flow_valid_connection(xfrom,yfrom,xto,yto) :
+ flow_xypoints[3] := flow_y_on_grid(2,yfrom,yto,zfrom) ;
+ flow_xypoints[4] := flow_xy_on_grid(5,3) ;
+ fi ;
+ flow_draw_connection(n,xfrom,yyfrom,xto,yyto) ;
+ fi ;
+enddef ;
+
+def flow_connect_top_top (expr n) (expr xfrom,yyfrom,zfrom) (expr xto,yyto,zto) =
+ yfrom := flow_y_pos(yyfrom) ;
+ yto := flow_y_pos(yyto) ;
+ if flow_points_initialized(xfrom,yfrom,xto,yto,6) :
+ flow_xypoints[1] := flow_xy_top(xfrom,yfrom,zfrom,true) ;
+ flow_xypoints[6] := flow_xy_top(xto,yto,zto,true) ;
+ flow_xypoints[2] := flow_up_on_grid(1) ;
+ flow_xypoints[5] := flow_up_on_grid(6) ;
+ flow_xypoints[3] := flow_up_to_grid(2,5) ;
+ flow_xypoints[4] := flow_up_to_grid(5,2) ;
+ if not flow_valid_connection(xfrom,yfrom,xto,yto) :
+ flow_xypoints[3] := flow_x_on_grid(2,xfrom,xto,zfrom) ;
+ flow_xypoints[4] := flow_xy_on_grid(3,5) ;
+ fi ;
+ %%%% begin experiment (todo: not value but just + and )
+ if flow_dsp_y <> 0 :
+ flow_xypoints[2] := flow_xypoints[2] shifted (0,flow_dsp_y) ;
+ flow_xypoints[3] := flow_xypoints[3] shifted (0,flow_dsp_y) ;
+ flow_xypoints[4] := flow_xypoints[4] shifted (0,flow_dsp_y) ;
+ flow_xypoints[5] := flow_xypoints[5] shifted (0,flow_dsp_y) ;
+ fi ;
+ %%%% end experiment
+ flow_draw_connection(n,xfrom,yyfrom,xto,yyto) ;
+ fi ;
+enddef ;
+
+def flow_connect_bottom_bottom (expr n) (expr xfrom,yyfrom,zfrom) (expr xto,yyto,zto) =
+ yfrom := flow_y_pos(yyfrom) ;
+ yto := flow_y_pos(yyto) ;
+ if flow_points_initialized(xfrom,yfrom,xto,yto,6) :
+ flow_xypoints[1] := flow_xy_bottom(xfrom,yfrom,zfrom,true) ;
+ flow_xypoints[6] := flow_xy_bottom(xto,yto,zto,true) ;
+ flow_xypoints[2] := flow_down_on_grid(1) ;
+ flow_xypoints[5] := flow_down_on_grid(6) ;
+ flow_xypoints[3] := flow_down_to_grid(2,5) ;
+ flow_xypoints[4] := flow_down_to_grid(5,2) ;
+ if not flow_valid_connection(xfrom,yfrom,xto,yto) :
+ flow_xypoints[3] := flow_x_on_grid(2,xfrom,xto,zfrom) ;
+ flow_xypoints[4] := flow_xy_on_grid(3,5) ;
+ fi ;
+ %%%% begin experiment
+ flow_xypoints[3] := flow_xypoints[3] shifted (flow_dsp_x,0) ;
+ flow_xypoints[4] := flow_xypoints[4] shifted (flow_dsp_x,0) ;
+ if flow_dsp_y<0 :
+ flow_xypoints[2] := flow_xypoints[2] shifted (0,-flow_dsp_y) ;
+ flow_xypoints[3] := flow_xypoints[3] shifted (0,-flow_dsp_y) ;
+ elseif flow_dsp_y>0 :
+ flow_xypoints[4] := flow_xypoints[4] shifted (0,flow_dsp_y) ;
+ flow_xypoints[5] := flow_xypoints[5] shifted (0,flow_dsp_y) ;
+ fi
+ %%%% end experiment
+ flow_draw_connection(n,xfrom,yyfrom,xto,yyto) ;
+ fi ;
+enddef ;
+
+def flow_connect_bottom_top (expr n) (expr xfrom,yfrom,zfrom) (expr xto,yto,zto) =
+ flow_reverse_connection := true ;
+ flow_connect_top_bottom (n) (xto,yto,zto) (xfrom,yfrom,zfrom) ;
+enddef ;
+
+def flow_connect_right_left (expr n) (expr xfrom,yfrom,zfrom) (expr xto,yto,zto) =
+ flow_reverse_connection := true ;
+ flow_connect_left_right (n) (xto,yto,zto) (xfrom,yfrom,zfrom) ;
+enddef ;
+
+def flow_connect_top_left (expr n) (expr xfrom,yfrom,zfrom) (expr xto,yto,zto) =
+ flow_reverse_connection := true ;
+ flow_connect_left_top (n) (xto,yto,zto) (xfrom,yfrom,zfrom) ;
+enddef ;
+
+def flow_connect_bottom_left (expr n) (expr xfrom,yfrom,zfrom) (expr xto,yto,zto) =
+ flow_reverse_connection := true ;
+ flow_connect_left_bottom (n) (xto,yto,zto) (xfrom,yfrom,zfrom) ;
+enddef ;
+
+def flow_connect_top_right (expr n) (expr xfrom,yfrom,zfrom) (expr xto,yto,zto) =
+ flow_reverse_connection := true ;
+ flow_connect_right_top (n) (xto,yto,zto) (xfrom,yfrom,zfrom) ;
+enddef ;
+
+def flow_connect_bottom_right (expr n) (expr xfrom,yfrom,zfrom) (expr xto,yto,zto) =
+ flow_reverse_connection := true ;
+ flow_connect_right_bottom (n) (xto,yto,zto) (xfrom,yfrom,zfrom) ;
+enddef ;
+
+def flow_draw_test_shape(expr x, y) =
+ flow_draw_shape(x,y,fullcircle, .7, .7) ;
+enddef ;
+
+def flow_draw_test_shapes =
+ for i=1 upto flow_max_x :
+ for j=1 upto flow_max_y :
+ flow_draw_test_shape(i,j) ;
+ endfor ;
+ endfor ;
+enddef;
+
+def flow_draw_test_area =
+ pickup pencircle scaled .5flow_shape_line_width ;
+ draw (unitsquare xscaled flow_max_x yscaled flow_max_y shifted (1,1)) flow_scaled_to_grid withcolor blue ;
+enddef ;
+
+def flow_show_connection(expr n, m) =
+
+ flow_begin_chart(100+n,6,6) ;
+
+ flow_draw_test_area ;
+
+ flow_smooth := true ;
+ flow_arrowtip := true ;
+ flow_dashline := true ;
+
+ flow_draw_test_shape(2,2) ; flow_draw_test_shape(4,5) ;
+ flow_draw_test_shape(3,3) ; flow_draw_test_shape(5,1) ;
+ flow_draw_test_shape(2,5) ; flow_draw_test_shape(1,3) ;
+ flow_draw_test_shape(6,2) ; flow_draw_test_shape(4,6) ;
+
+ if (m=1) :
+ flow_connect_top_bottom (0) (2,2,0) (4,5,0) ;
+ flow_connect_top_bottom (0) (3,3,0) (5,1,0) ;
+ flow_connect_top_bottom (0) (2,5,0) (1,3,0) ;
+ flow_connect_top_bottom (0) (6,2,0) (4,6,0) ;
+ elseif (m=2) :
+ flow_connect_top_top (0) (2,2,0) (4,5,0) ;
+ flow_connect_top_top (0) (3,3,0) (5,1,0) ;
+ flow_connect_top_top (0) (2,5,0) (1,3,0) ;
+ flow_connect_top_top (0) (6,2,0) (4,6,0) ;
+ elseif (m=3) :
+ flow_connect_bottom_bottom (0) (2,2,0) (4,5,0) ;
+ flow_connect_bottom_bottom (0) (3,3,0) (5,1,0) ;
+ flow_connect_bottom_bottom (0) (2,5,0) (1,3,0) ;
+ flow_connect_bottom_bottom (0) (6,2,0) (4,6,0) ;
+ elseif (m=4) :
+ flow_connect_left_right (0) (2,2,0) (4,5,0) ;
+ flow_connect_left_right (0) (3,3,0) (5,1,0) ;
+ flow_connect_left_right (0) (2,5,0) (1,3,0) ;
+ flow_connect_left_right (0) (6,2,0) (4,6,0) ;
+ elseif (m=5) :
+ flow_connect_left_left (0) (2,2,0) (4,5,0) ;
+ flow_connect_left_left (0) (3,3,0) (5,1,0) ;
+ flow_connect_left_left (0) (2,5,0) (1,3,0) ;
+ flow_connect_left_left (0) (6,2,0) (4,6,0) ;
+ elseif (m=6) :
+ flow_connect_right_right (0) (2,2,0) (4,5,0) ;
+ flow_connect_right_right (0) (3,3,0) (5,1,0) ;
+ flow_connect_right_right (0) (2,5,0) (1,3,0) ;
+ flow_connect_right_right (0) (6,2,0) (4,6,0) ;
+ elseif (m=7) :
+ flow_connect_left_top (0) (2,2,0) (4,5,0) ;
+ flow_connect_left_top (0) (3,3,0) (5,1,0) ;
+ flow_connect_left_top (0) (2,5,0) (1,3,0) ;
+ flow_connect_left_top (0) (6,2,0) (4,6,0) ;
+ elseif (m=8) :
+ flow_connect_left_bottom (0) (2,2,0) (4,5,0) ;
+ flow_connect_left_bottom (0) (3,3,0) (5,1,0) ;
+ flow_connect_left_bottom (0) (2,5,0) (1,3,0) ;
+ flow_connect_left_bottom (0) (6,2,0) (4,6,0) ;
+ elseif (m=9) :
+ flow_connect_right_top (0) (2,2,0) (4,5,0) ;
+ flow_connect_right_top (0) (3,3,0) (5,1,0) ;
+ flow_connect_right_top (0) (2,5,0) (1,3,0) ;
+ flow_connect_right_top (0) (6,2,0) (4,6,0) ;
+ else :
+ flow_connect_right_bottom (0) (2,2,0) (4,5,0) ;
+ flow_connect_right_bottom (0) (3,3,0) (5,1,0) ;
+ flow_connect_right_bottom (0) (2,5,0) (1,3,0) ;
+ flow_connect_right_bottom (0) (6,2,0) (4,6,0) ;
+ fi ;
+
+ flow_end_chart ;
+
+enddef ;
+
+def flow_show_connections =
+ for f=1 upto 10 :
+ flow_show_connection(f,f) ;
+ endfor ;
+enddef ;
+
+%D charts
+
+def flow_clip_chart(expr minx, miny, maxx, maxy) =
+ flow_cmin_x := minx ;
+ flow_cmax_x := maxx ;
+ flow_cmin_y := miny ;
+ flow_cmax_y := maxy ;
+enddef ;
+
+def flow_begin_chart(expr n, maxx, maxy) =
+ flow_new_chart ;
+ flow_chart_figure := n ;
+ flow_chart_scale := 1 ;
+ if flow_chart_figure>0:
+ beginfig(flow_chart_figure) ;
+ fi ;
+ flow_initialize_grid (maxx, maxy) ;
+ bboxmargin := 0 ;
+ flow_cmin_x := 1 ;
+ flow_cmax_x := maxx ;
+ flow_cmin_y := 1 ;
+ flow_cmax_y := maxy ;
+enddef ;
+
+def flow_end_chart =
+ begingroup ;
+ save p ; path p ;
+ flow_flush_shapes ;
+ flow_flush_connections ;
+ flow_flush_pictures ;
+ flow_cmin_x := flow_cmin_x ;
+ flow_cmax_x := flow_cmin_x+flow_cmax_x ;
+ flow_cmin_y := flow_cmin_y-1 ;
+ flow_cmax_y := flow_cmin_y+flow_cmax_y ;
+ if flow_reverse_y :
+ flow_cmin_y := flow_y_pos(flow_cmin_y) ;
+ flow_cmax_y := flow_y_pos(flow_cmax_y) ;
+ fi ;
+ p := (((flow_cmin_x,flow_cmin_y)--(flow_cmax_x,flow_cmin_y)--
+ (flow_cmax_x,flow_cmax_y)--(flow_cmin_x,flow_cmax_y)--cycle))
+ flow_scaled_to_grid ;
+ %draw p withcolor red ;
+ p := p enlarged flow_chart_offset ;
+ clip currentpicture to p ;
+ setbounds currentpicture to p ;
+ endgroup ;
+ currentpicture := currentpicture scaled flow_chart_scale ;
+ if flow_chart_figure>0:
+ endfig ;
+ fi ;
+enddef ;
+
+def flow_new_shape(expr x, y, n) =
+ if known n :
+ if (x>0) and (x<=flow_max_x) and (y>0) and (y<=flow_max_y) :
+ flow_draw_shape(x,y,some_shape_path(n), flow_shape_width/flow_grid_width, flow_shape_height/flow_grid_height) ;
+ else :
+ message ("shape outside grid ignored") ;
+ fi ;
+ else :
+ message ("shape not known" ) ;
+ fi ;
+enddef ;
+
+def flow_begin_sub_chart =
+ begingroup ;
+ save flow_shape_line_width, flow_connection_line_width ;
+ save flow_shape_line_color, flow_shape_fill_color, flow_connection_line_color ;
+ color flow_shape_line_color, flow_shape_fill_color, flow_connection_line_color ;
+ save flow_smooth, flow_arrowtip, flow_dashline, flow_peepshape ;
+ boolean flow_smooth, flow_arrowtip, flow_dashline, flow_peepshape ;
+enddef ;
+
+def flow_end_sub_chart =
+ endgroup ;
+enddef ;
+
diff --git a/Master/texmf-dist/metapost/context/base/mp-chem.mp b/Master/texmf-dist/metapost/context/base/mp-chem.mpiv
index c70dafd85cd..04fec713bb4 100644
--- a/Master/texmf-dist/metapost/context/base/mp-chem.mp
+++ b/Master/texmf-dist/metapost/context/base/mp-chem.mpiv
@@ -15,7 +15,9 @@
% either consistent setting or not
-if known chem_reset : endinput ; fi ;
+if known context_chem : endinput ; fi ;
+
+boolean context_chem ; context_chem := true ;
numeric
chem_width, chem_radical_min, chem_radical_max, chem_text_max, chem_circle_radius,
@@ -140,16 +142,15 @@ def chem_stop_structure =
setbounds currentpicture to chem_setting_bbox ;
enddef ;
-def chem_start_component =
-enddef ;
-def chem_stop_component =
-enddef ;
+def chem_start_component = enddef ;
+def chem_stop_component = enddef ;
def chem_pb =
% draw boundingbox currentpicture withpen pencircle scaled 1mm withcolor blue ;
% draw origin withpen pencircle scaled 2mm withcolor blue ;
chem_doing_pb := true ;
enddef ;
+
def chem_pe =
% draw boundingbox currentpicture withpen pencircle scaled .5mm withcolor red ;
% draw origin withpen pencircle scaled 1mm withcolor red ;
@@ -176,38 +177,49 @@ enddef ;
vardef chem_b (expr n, f, t, r, c) =
chem_draw (n, chem_b_path[n], f, t, r, c) ;
enddef ;
+
vardef chem_sb (expr n, f, t, r, c) =
chem_draw (n, chem_sb_path[n], f, t, r, c) ;
enddef ;
+
vardef chem_s (expr n, f, t, r, c) =
chem_draw (n, chem_s_path[n], f, t, r, c) ;
enddef ;
+
vardef chem_ss (expr n, f, t, r, c) =
chem_draw (n, chem_ss_path[n], f, t, r, c) ;
enddef ;
+
vardef chem_mid (expr n, r, c) =
chem_draw_fixed (n, chem_midt_path[n], r, c) ;
chem_draw_fixed (n, chem_midb_path[n], r, c) ;
enddef ;
+
vardef chem_mids (expr n, r, c) =
chem_draw_fixed (n, chem_midst_path[n], r, c) ;
chem_draw_fixed (n, chem_midsb_path[n], r, c) ;
enddef ;
+
vardef chem_mss (expr n, f, t, r, c) =
chem_draw (n, chem_mss_path[n], f, t, r, c) ;
enddef ;
+
vardef chem_pss (expr n, f, t, r, c) =
chem_draw (n, chem_pss_path[n], f, t, r, c) ;
enddef ;
+
vardef chem_msb (expr n, f, t, r, c) =
chem_draw (n, chem_msb_path[n], f, t, r, c) ;
enddef ;
+
vardef chem_psb (expr n, f, t, r, c) =
chem_draw (n, chem_psb_path[n], f, t, r, c) ;
enddef ;
+
vardef chem_eb (expr n, f, t, r, c) =
chem_draw (n, chem_eb_path[n], f, t, r, c) ;
enddef ;
+
vardef chem_db (expr n, f, t, r, c) =
if n = 1 :
chem_draw (n, chem_msb_path [n], f, t, r, c) ;
@@ -217,20 +229,25 @@ vardef chem_db (expr n, f, t, r, c) =
chem_draw (n, chem_dbr_path [n], f, t, r, c) ;
fi ;
enddef ;
+
vardef chem_er (expr n, f, t, r, c) =
chem_draw (n, chem_rl_path[n], f, t, r, c) ;
chem_draw (n, chem_rr_path[n], f, t, r, c) ;
enddef ;
+
vardef chem_dr (expr n, f, t, r, c) =
chem_draw (n, chem_srl_path[n], f, t, r, c) ;
chem_draw (n, chem_srr_path[n], f, t, r, c) ;
enddef ;
+
vardef chem_ad (expr n, f, t, r, c) =
chem_draw_arrow(n, chem_ad_path[n], f, t, r, c) ;
enddef ;
+
vardef chem_au (expr n, f, t, r, c) =
chem_draw_arrow(n, chem_au_path[n], f, t, r, c)
enddef ;
+
vardef chem_r (expr n, f, t, r, c) =
if n < 0 :
chem_draw_vertical (n, chem_r_path[n], f, t, r, c) ;
@@ -238,27 +255,35 @@ vardef chem_r (expr n, f, t, r, c) =
chem_draw (n, chem_r_path[n], f, t, r, c) ;
fi ;
enddef ;
+
vardef chem_rd (expr n, f, t, r, c) =
chem_dashed_normal (n, chem_r_path[n], f, t, r, c)
enddef ;
+
vardef chem_mrd (expr n, f, t, r, c) =
chem_dashed_normal (n, chem_mr_path[n], f, t, r, c)
enddef ;
+
vardef chem_prd (expr n, f, t, r, c) =
chem_dashed_normal (n, chem_pr_path[n], f, t, r, c)
enddef ;
+
vardef chem_br (expr n, f, t, r, c) =
chem_fill (n, chem_br_path[n], f, t, r, c )
enddef ;
+
vardef chem_rb (expr n, f, t, r, c) =
chem_fill (n, chem_rb_path[n], f, t, r, c)
enddef ;
+
vardef chem_mrb (expr n, f, t, r, c) =
chem_fill (n, chem_mrb_path[n], f, t, r, c)
enddef ;
+
vardef chem_prb (expr n, f, t, r, c) =
chem_fill (n, chem_prb_path[n], f, t, r, c)
enddef ;
+
vardef chem_mr (expr n, f, t, r, c) =
if n < 0 :
chem_draw_vertical(n, chem_mr_path[n], f, t, r, c)
@@ -266,6 +291,7 @@ vardef chem_mr (expr n, f, t, r, c) =
chem_draw (n, chem_mr_path[n], f, t, r, c)
fi
enddef ;
+
vardef chem_pr (expr n, f, t, r, c) =
if n < 0 :
chem_draw_vertical(n, chem_pr_path[n], f, t, r, c)
@@ -273,75 +299,95 @@ vardef chem_pr (expr n, f, t, r, c) =
chem_draw (n, chem_pr_path[n], f, t, r, c)
fi
enddef ;
+
vardef chem_sr (expr n, f, t, r, c) =
chem_draw (n, chem_sr_path[n], f, t, r, c)
enddef ;
+
vardef chem_msr (expr n, f, t, r, c) =
chem_draw (n, chem_msr_path[n], f, t, r, c)
enddef ;
+
vardef chem_psr (expr n, f, t, r, c) =
chem_draw (n, chem_psr_path[n], f, t, r, c)
enddef ;
+
vardef chem_c (expr n, f, t, r, c) =
chem_draw (n, chem_c_path[n], f, t, r, c)
enddef ;
+
vardef chem_cc (expr n, f, t, r, c) =
chem_draw (n, chem_cc_path[n], f, f, r, c)
enddef ;
+
vardef chem_cd (expr n, f, t, r, c) =
chem_dashed_connected (n, chem_c_path[n], f, t, r, c)
enddef ;
+
vardef chem_ccd (expr n, f, t, r, c) =
chem_dashed_normal (n, chem_cc_path[n], f, f, r, c)
enddef ;
+
vardef chem_rn (expr n, i, t) =
chem_rt (n,i,t) ;
enddef ;
+
vardef chem_rtn (expr n, i, t) =
chem_rtt(n,i,t) ;
enddef ;
+
vardef chem_rbn (expr n, i, t) =
chem_rbt(n,i,t) ;
enddef ;
+
vardef chem_tb (expr n, f, t, r, c) = % one
chem_draw (n, chem_msb_path[n], f, t, r, c) ;
chem_draw (n, chem_sb_path [n], f, t, r, c) ;
chem_draw (n, chem_psb_path[n], f, t, r, c) ;
enddef ;
+
vardef chem_ep (expr n, f, t, r, c) = % one
chem_draw (n, chem_e_path[n], f, t, r, c) ;
enddef ;
+
vardef chem_es (expr n, f, t, r, c) = % one
chem_draw_dot (n, center chem_e_path[n], f, t, r, c) ;
enddef ;
+
vardef chem_ed (expr n, f, t, r, c) = % one
chem_draw_dot (n, point 0 of chem_e_path[n], f, t, r, c) ;
chem_draw_dot (n, point 1 of chem_e_path[n], f, t, r, c) ;
enddef ;
+
vardef chem_et (expr n, f, t, r, c) = % one
chem_draw_dot (n, point 0 of chem_e_path[n], f, t, r, c) ;
chem_draw_dot (n, center chem_e_path[n], f, t, r, c) ;
chem_draw_dot (n, point 1 of chem_e_path[n], f, t, r, c) ;
enddef ;
+
vardef chem_sd (expr n, f, t, r, c) = % one
chem_draw (n, chem_ddt_path[n], f, t, r, c) ;
chem_draw (n, chem_ddb_path[n], f, t, r, c) ;
enddef ;
+
vardef chem_rdd (expr n, f, t, r, c) = % one
chem_draw (n, chem_ldt_path[n], f, t, r, c) ;
chem_draw (n, chem_ldb_path[n], f, t, r, c) ;
chem_draw (n, chem_psb_path[n], f, t, r, c) ;
enddef ;
+
vardef chem_ldd (expr n, f, t, r, c) = % one
chem_draw (n, chem_msb_path[n], f, t, r, c) ;
chem_draw (n, chem_rdt_path[n], f, t, r, c) ;
chem_draw (n, chem_rdb_path[n], f, t, r, c) ;
enddef ;
+
vardef chem_hb (expr n, f, t, r, c) = % one
chem_draw_dot (n, point 0 of chem_sb_path[n], f, t, r, c) ;
chem_draw_dot (n, center chem_sb_path[n], f, t, r, c) ;
chem_draw_dot (n, point 1 of chem_sb_path[n], f, t, r, c) ;
enddef ;
+
vardef chem_bb (expr n, f, t, r, c) = % one
if n < 0 :
chem_fill (n, chem_bb_path[n], 1, 1, r, c) ;
@@ -350,14 +396,17 @@ vardef chem_bb (expr n, f, t, r, c) = % one
chem_fill (n, chem_bb_path[n], f, t, r, c) ;
fi ;
enddef ;
+
vardef chem_oe (expr n, f, t, r, c) = % one
chem_draw (n, chem_oe_path[n], f, t, r, c) ;
enddef ;
+
vardef chem_bd (expr n, f, t, r, c) = % one
for i=0 upto 5 :
chem_draw (n, subpath (2i,2i+1) of chem_bd_path[n], f, t, r, c) ;
endfor ;
enddef ;
+
vardef chem_bw (expr n, f, t, r, c) = % one
chem_draw (n, chem_bw_path[n], f, t, r, c) ;
enddef ;
@@ -365,9 +414,11 @@ enddef ;
vardef chem_z_zero@#(text t) =
chem_text@#(t, chem_do(origin)) ;
enddef ;
+
vardef chem_cz_zero@#(text t) =
chem_text@#(t, chem_do(origin)) ;
enddef ;
+
vardef chem_z@#(expr n, p) (text t) =
if p = 0 :
chem_text@#(t, chem_do(origin)) ;
@@ -375,6 +426,7 @@ vardef chem_z@#(expr n, p) (text t) =
chem_text@#(t, chem_do(chem_b_zero[n] rotated chem_ang(n,p))) ;
fi ;
enddef ;
+
vardef chem_cz@#(expr n, p) (text t) =
if n = 1 :
chem_c_text(t, chem_do(chem_crz_zero[n] rotated chem_ang(n,p))) ;
@@ -382,9 +434,11 @@ vardef chem_cz@#(expr n, p) (text t) =
chem_text@#(t, chem_do(chem_b_zero[n] rotated chem_ang(n,p))) ;
fi ;
enddef ;
+
vardef chem_midz@#(expr n, p) (text t) =
chem_text@#(t, chem_do(chem_mid_zero[n] rotated chem_ang(n,p))) ;
enddef ;
+
vardef chem_rz@#(expr n, p) (text t) =
if n < 0 :
% quite special
@@ -393,9 +447,11 @@ vardef chem_rz@#(expr n, p) (text t) =
chem_text@#(t, chem_do(chem_r_zero[n] rotated chem_ang(n,p))) ;
fi ;
enddef ;
+
vardef chem_crz@#(expr n, p) (text tx) =
chem_text(tx, chem_do(chem_crz_zero[n] rotated chem_ang(n,p))) ;
enddef ;
+
vardef chem_mrz@#(expr n, p) (text t) =
if n < 0 :
% quite special
@@ -404,6 +460,7 @@ vardef chem_mrz@#(expr n, p) (text t) =
chem_text@#(t, chem_do(chem_mr_zero[n] rotated chem_ang(n,p))) ;
fi ;
enddef ;
+
vardef chem_prz@#(expr n, p) (text t) =
if n < 0 :
% quite special
@@ -412,15 +469,19 @@ vardef chem_prz@#(expr n, p) (text t) =
chem_text@#(t, chem_do(chem_pr_zero[n] rotated chem_ang(n,p))) ;
fi ;
enddef ;
+
vardef chem_rt@#(expr n, p) (text t) =
chem_text@#(t, chem_do(chem_rt_zero[n] rotated chem_ang(n,p))) ;
enddef ;
+
vardef chem_rtt@#(expr n, p) (text t) =
chem_text@#(t, chem_do(chem_rtt_zero[n] rotated chem_ang(n,p))) ;
enddef ;
+
vardef chem_rbt@#(expr n, p) (text t) =
chem_text@#(t, chem_do(chem_rbt_zero[n] rotated chem_ang(n,p))) ;
enddef ;
+
vardef chem_zt@#(expr n, p) (text t) =
if n = 1 :
chem_text@#(t, chem_do(chem_rt_zero[n] rotated chem_ang(n,p))) ;
@@ -428,6 +489,7 @@ vardef chem_zt@#(expr n, p) (text t) =
chem_text@#(t, chem_do(chem_n_zero[n] rotated chem_ang(n,p))) ;
fi ;
enddef ;
+
vardef chem_zn@#(expr n, p) (text t) =
if n = 1 :
chem_text@#(t, chem_do(chem_rt_zero[n] rotated chem_ang(n,p))) ;
@@ -435,15 +497,19 @@ vardef chem_zn@#(expr n, p) (text t) =
chem_text@#(t, chem_do(chem_n_zero[n] rotated chem_ang(n,p))) ;
fi ;
enddef ;
+
vardef chem_zbt@#(expr n, p) (text t) =
chem_text@#(t, chem_do(chem_rtt_zero[n] rotated chem_ang(n,p))) ;
enddef ;
+
vardef chem_zbn@#(expr n, p) (text t) =
chem_text@#(t, chem_do(chem_rtt_zero[n] rotated chem_ang(n,p))) ;
enddef ;
+
vardef chem_ztt@#(expr n, p) (text t) =
chem_text@#(t, chem_do(chem_rbt_zero[n] rotated chem_ang(n,p))) ;
enddef ;
+
vardef chem_ztn@#(expr n, p) (text t) =
chem_text@#(t, chem_do(chem_rbt_zero[n] rotated chem_ang(n,p))) ;
enddef ;
@@ -456,8 +522,8 @@ vardef chem_text@#(expr txt, z) = % adapted copy of thelabel@
save p ; picture p ;
p := textext(txt) ;
p := p
- if (labtype@# >= 10) : shifted (0,ypart center p) fi
- shifted (z + chem_text_offset*laboff@# - (labxf@#*lrcorner p + labyf@#*ulcorner p + (1-labxf@#-labyf@#)*llcorner p)) ;
+ if (mfun_labtype@# >= 10) : shifted (0,ypart center p) fi
+ shifted (z + chem_text_offset*mfun_laboff@# - (mfun_labxf@#*lrcorner p + mfun_labyf@#*ulcorner p + (1-mfun_labxf@#-mfun_labyf@#)*llcorner p)) ;
if chem_text_trace :
draw z withpen pencircle scaled 2pt withcolor red ;
draw boundingbox p withpen pencircle scaled 1pt withcolor red ;
@@ -481,15 +547,19 @@ enddef ;
vardef chem_ang (expr n, d) =
((-1 * (d-1) * chem_angle[n]) + (-chem_rotation+1) * 90 + chem_start[n]) % no ;
enddef ;
+
vardef chem_rot (expr n, d) =
chem_rotation := d ;
enddef ;
+
vardef chem_adj (expr n, d) =
chem_adjacent := d ;
enddef ;
+
vardef chem_sub (expr n, d) =
chem_substituent := d ;
enddef ;
+
vardef chem_dir (expr n, d) =
if n = 1 :
chem_direction_p := (origin - 2*center(chem_b_path[n] rotated chem_ang(n,d+1))) ;
@@ -497,6 +567,7 @@ vardef chem_dir (expr n, d) =
chem_shift := chem_shift + chem_direction_p ;
fi ;
enddef ;
+
vardef chem_mov (expr n, d) =
if d = 0 :
currentpicture := currentpicture shifted - chem_shift ;
@@ -507,6 +578,7 @@ vardef chem_mov (expr n, d) =
chem_shift := chem_shift + chem_move_p ;
fi ;
enddef ;
+
vardef chem_off (expr n, d) =
if (d = 1) or (d = 2) or (d = 8) : % positive
currentpicture := currentpicture shifted (-chem_setting_offset,0) ;
@@ -554,6 +626,7 @@ vardef chem_draw (expr n, path_fragment, from_point, to_point, linewidth, lineco
draw (path_fragment rotated chem_ang(n,i)) withpen pencircle scaled linewidth withcolor linecolor ;
endfor ;
enddef ;
+
vardef chem_fill (expr n, path_fragment, from_point, to_point, linewidth, linecolor) =
for i:=from_point upto to_point:
fill (path_fragment rotated chem_ang(n,i)) withpen pencircle scaled 0 withcolor linecolor ;
@@ -565,24 +638,29 @@ vardef chem_dashed_normal (expr n, path_fragment, from_point, to_point, linewidt
draw (path_fragment rotated chem_ang(n,i)) withpen pencircle scaled linewidth withcolor linecolor dashed evenly ;
endfor ;
enddef ;
+
vardef chem_dashed_connected (expr n, path_fragment, from_point, to_point, linewidth, linecolor) =
draw for i:=from_point upto to_point:
(path_fragment rotated chem_ang(n,i)) if i < to_point : -- fi
endfor withpen pencircle scaled linewidth withcolor linecolor dashed evenly ;
enddef ;
+
vardef chem_draw_dot (expr n, path_fragment, from_point, to_point, linewidth, linecolor) =
for i:=from_point upto to_point:
draw (path_fragment rotated chem_ang(n,i)) withpen pencircle scaled (chem_dot_factor*linewidth) withcolor linecolor ;
endfor ;
enddef ;
+
vardef chem_draw_fixed (expr n, path_fragment, linewidth, linecolor) =
draw (path_fragment rotated chem_ang(n,1)) withpen pencircle scaled linewidth withcolor linecolor ;
enddef ;
+
vardef chem_draw_arrow (expr n, path_fragment, from_point, to_point, linewidth, linecolor) =
for i:=from_point upto to_point:
drawarrow (path_fragment rotated chem_ang(n,i)) withpen pencircle scaled linewidth withcolor linecolor ;
endfor ;
enddef ;
+
vardef chem_draw_vertical (expr n, path_fragment, from_point, to_point, linewidth, linecolor) =
% quite special
for i:=from_point upto to_point:
@@ -603,6 +681,7 @@ vardef chem_save =
% chem_rotation := 1 ;
currentpicture := nullpicture ;
enddef ;
+
vardef chem_restore =
if chem_stack_n > 0 :
currentpicture := currentpicture shifted - chem_shift ;
diff --git a/Master/texmf-dist/metapost/context/base/mp-core.mp b/Master/texmf-dist/metapost/context/base/mp-core.mpii
index 2ccdad22c24..c07f0976fd6 100644
--- a/Master/texmf-dist/metapost/context/base/mp-core.mp
+++ b/Master/texmf-dist/metapost/context/base/mp-core.mpii
@@ -1,6 +1,4 @@
-
-if unknown context_tool : input mp-tool ; fi ;
-if known context_core : endinput ; fi ;
+if known context_core : endinput ; fi ;
boolean context_core ; context_core := true ;
@@ -1377,10 +1375,6 @@ def ProcessSyncTask(expr p, c) =
fill p withcolor c ;
enddef ;
-endinput ;
-
-end
-
% for Jelle Huisman
%
% \setupcolors[state=start]
diff --git a/Master/texmf-dist/metapost/context/base/mp-core.mpiv b/Master/texmf-dist/metapost/context/base/mp-core.mpiv
new file mode 100644
index 00000000000..fd0b8bb9c73
--- /dev/null
+++ b/Master/texmf-dist/metapost/context/base/mp-core.mpiv
@@ -0,0 +1,1558 @@
+%D \module
+%D [ file=mp-core.mp,
+%D version=1999.08.01, % anchoring
+%D title=\CONTEXT\ \METAPOST\ graphics,
+%D subtitle=background macros,
+%D author=Hans Hagen,
+%D date=\currentdate,
+%D copyright={PRAGMA / Hans Hagen \& Ton Otten}]
+%C
+%C This module is part of the \CONTEXT\ macro||package and is
+%C therefore copyrighted by \PRAGMA. See mreadme.pdf for
+%C details.
+
+if known context_core : endinput ; fi ;
+
+boolean context_core ; context_core := true ;
+
+%D Copied to here .. not used any more.
+
+def SaveTextAreas =
+ path SavedTextAreas [] ;
+ path SavedTextColumns[] ;
+ numeric NOfSavedTextAreas ;
+ numeric NOfSavedTextColumns ;
+ for i=1 upto NOfTextAreas :
+ SavedTextAreas[i] := TextAreas[i] ;
+ endfor ;
+ for i=1 upto NOfTextColumns :
+ SavedTextColumns[i] := TextColumns[i] ;
+ endfor ;
+ NOfSavedTextAreas := NOfTextAreas ;
+ NOfSavedTextColumns := NOfTextColumns ;
+enddef ;
+
+def ResetTextAreas =
+ path TextAreas[], TextColumns[], PlainTextArea, RegionTextArea ;
+ numeric NOfTextAreas ; NOfTextAreas := 0 ;
+ numeric NOfTextColumns ; NOfTextColumns := 0 ;
+ numeric nofmultipars ; nofmultipars := 0 ;
+ TextAreas[0] := TextColumns[0] := origin -- cycle ;
+enddef ;
+
+ResetTextAreas ; SaveTextAreas ; ;
+
+def RegisterTextArea (expr x, y, w, h, d) =
+ begingroup ;
+ save p ; path p ;
+ p := unitsquare xyscaled(w,h+d) shifted (x,y-d) ;
+ if NOfTextAreas>0 :
+ % if needed, concatenate areas
+ if (round(llcorner TextAreas[NOfTextAreas]) = round(ulcorner p)) and
+ (round(lrcorner TextAreas[NOfTextAreas]) = round(urcorner p)) :
+ p :=
+ ulcorner TextAreas[NOfTextAreas] --
+ urcorner TextAreas[NOfTextAreas] --
+ lrcorner p --
+ llcorner p -- cycle ;
+ else :
+ NOfTextAreas := NOfTextAreas + 1 ;
+ fi ;
+ else :
+ NOfTextAreas := NOfTextAreas + 1 ;
+ fi ;
+ TextAreas[NOfTextAreas] := p ;
+ if NOfTextColumns>0 :
+ if (round(xpart llcorner TextColumns[NOfTextColumns]) = round(xpart ulcorner p)) and
+ (round(xpart lrcorner TextColumns[NOfTextColumns]) = round(xpart urcorner p)) :
+ p :=
+ ulcorner TextColumns[NOfTextColumns] --
+ urcorner TextColumns[NOfTextColumns] --
+ lrcorner p --
+ llcorner p -- cycle ;
+ else :
+ NOfTextColumns := NOfTextColumns + 1 ;
+ fi ;
+ else :
+ NOfTextColumns := NOfTextColumns + 1 ;
+ fi ;
+ TextColumns[NOfTextColumns] := p ;
+ endgroup ;
+enddef ;
+
+%D We store a local area in slot zero.
+
+def RegisterPlainTextArea(expr x,y,w,h,d) =
+ PlainTextArea := unitsquare xyscaled(w,h+d) shifted (x,y-d) ;
+enddef ;
+
+def RegisterRegionTextArea(expr x,y,w,h,d) =
+ RegionTextArea := unitsquare xyscaled(w,h+d) shifted (x,y-d) ;
+ % RegionTextArea := RegionTextArea enlarged 2mm ;
+enddef ;
+
+def RegisterLocalTextArea (expr x, y, w, h, d) =
+ TextAreas[0] := TextColumns[0] := unitsquare xyscaled(w,h+d) shifted (x,y-d) ;
+enddef ;
+
+def ResetLocalTextArea =
+ TextAreas[0] := TextColumns[0] := origin -- cycle ;
+enddef ;
+
+ResetLocalTextArea ;
+
+vardef InsideTextArea (expr _i_, _xy_) =
+ (round(xpart _xy_) >= round(xpart llcorner TextAreas[_i_])) and
+ (round(xpart _xy_) <= round(xpart lrcorner TextAreas[_i_])) and
+ (round(ypart _xy_) >= round(ypart llcorner TextAreas[_i_])) and
+ (round(ypart _xy_) <= round(ypart urcorner TextAreas[_i_]))
+enddef ;
+
+vardef InsideSavedTextArea (expr _i_, _xy_) =
+ (round(xpart _xy_) >= round(xpart llcorner SavedTextAreas[_i_])) and
+ (round(xpart _xy_) <= round(xpart lrcorner SavedTextAreas[_i_])) and
+ (round(ypart _xy_) >= round(ypart llcorner SavedTextAreas[_i_])) and
+ (round(ypart _xy_) <= round(ypart urcorner SavedTextAreas[_i_]))
+enddef ;
+
+vardef InsideSomeTextArea (expr _xy_) =
+ save ok ; boolean ok ; ok := false ;
+ for i := 1 upto NOfTextAreas :
+ if InsideTextArea(i,_xy_) :
+ ok := true ; % we can move the exit here
+ fi ;
+ exitif ok ;
+ endfor ;
+ ok
+enddef ;
+
+vardef InsideSomeSavedTextArea (expr _xy_) =
+ save ok ; boolean ok ; ok := false ;
+ for i := 1 upto NOfSavedTextAreas :
+ if InsideSavedTextArea(i,_xy_) :
+ ok := true ;
+ fi ;
+ exitif ok ;
+ endfor ;
+ ok
+enddef ;
+
+vardef TextAreaX (expr x) =
+ numeric _TextAreaX_ ; _TextAreaX_ := 0 ;
+ for i := 1 upto NOfTextAreas :
+ if (round(x) >= round(xpart llcorner TextAreas[i])) and
+ (round(x) <= round(xpart lrcorner TextAreas[i])) :
+ _TextAreaX_ := xpart llcorner TextAreas[i] ;
+ fi ;
+ endfor ;
+ _TextAreaX_
+enddef ;
+
+vardef TextAreaY (expr y) =
+ numeric _TextAreaY_ ; _TextAreaY_ := 0 ;
+ for i := 1 upto NOfTextAreas :
+ if (round(y) >= round(ypart llcorner TextAreas[NOfTextAreas])) and
+ (round(y) <= round(ypart ulcorner TextAreas[NOfTextAreas])) :
+ _TextAreaY_ := ypart llcorner TextAreas[NOfTextAreas] ;
+ fi ;
+ endfor ;
+ _TextAreaY_
+enddef ;
+
+vardef TextAreaXY (expr x, y) =
+ pair _TextAreaXY_ ; _TextAreaXY_ := origin ;
+ for i := 1 upto NOfTextAreas :
+ if (round(x) >= round(xpart llcorner TextAreas[i])) and
+ (round(x) <= round(xpart lrcorner TextAreas[i])) and
+ (round(y) >= round(ypart llcorner TextAreas[i])) and
+ (round(y) <= round(ypart ulcorner TextAreas[i])) :
+ _TextAreaXY_ := llconer TextAreas[i] ;
+ fi ;
+ endfor ;
+ _TextAreaXY_
+enddef ;
+
+vardef TextAreaW (expr x) =
+ numeric _TextAreaW_ ; _TextAreaW_ := 0 ;
+ for i := 1 upto NOfTextAreas :
+ if (round(x) >= round(xpart llcorner TextAreas[i])) and
+ (round(x) <= round(xpart lrcorner TextAreas[i])) :
+ _TextAreaW_ := bbwidth(TextAreas[i]) ;
+ fi ;
+ endfor ;
+ _TextAreaW_
+enddef ;
+
+vardef TextAreaH (expr y) =
+ numeric _TextAreaH_ ; _TextAreaH_ := 0 ;
+ for i := 1 upto NOfTextAreas :
+ if (round(y) >= round(ypart llcorner TextAreas[i])) and
+ (round(y) <= round(ypart ulcorner TextAreas[i])) :
+ _TextAreaH_ := bbheight(TextAreas[i]) ;
+ fi ;
+ endfor ;
+ _TextAreaH_
+enddef ;
+
+vardef TextAreaWH (expr x, y) =
+ pair _TextAreaWH_ ; _TextAreaWH_ := origin ;
+ for i := 1 upto NOfTextAreas :
+ if (round(x) >= round(xpart llcorner TextAreas[i])) and
+ (round(x) <= round(xpart lrcorner TextAreas[i])) and
+ (round(y) >= round(ypart llcorner TextAreas[i])) and
+ (round(y) <= round(ypart ulcorner TextAreas[i])) :
+ _TextAreaWH_ := (bbwidth(TextAreas[i]),bbheight(TextAreas[i])) ;
+ fi ;
+ endfor ;
+ _TextAreaWH_
+enddef ;
+
+%D Till here.
+
+pair lxy[], rxy[], cxy[], llxy[], lrxy[], ulxy[], urxy[] ;
+path pxy[] ;
+numeric hxy[], wxy[], dxy[], nxy[] ;
+
+def box_found (expr n,x,y,w,h,d) =
+ not ((x=0) and (y=0) and (w=0) and (h=0) and (d=0))
+enddef ;
+
+def initialize_box_pos (expr pos,n,x,y,w,h,d) =
+ pair lxy, rxy, cxy, llxy, lrxy, ulxy, urxy ;
+ path pxy ; numeric hxy, wxy, dxy, nxy;
+ lxy := (x,y) ;
+ llxy := (x,y-d) ;
+ lrxy := (x+w,y-d) ;
+ urxy := (x+w,y+h) ;
+ ulxy := (x,y+h) ;
+ wxy := w ;
+ hxy := h ;
+ dxy := d ;
+ rxy := lxy shifted (wxy,0) ;
+ pxy := llxy--lrxy--urxy--ulxy--cycle ;
+ cxy := center pxy ;
+ nxy := n ;
+ freeze_box(pos) ;
+enddef ;
+
+def freeze_box (expr pos) =
+ lxy[pos] := lxy ;
+ llxy[pos] := llxy ;
+ lrxy[pos] := lrxy ;
+ urxy[pos] := urxy ;
+ ulxy[pos] := ulxy ;
+ wxy[pos] := wxy ;
+ hxy[pos] := hxy ;
+ dxy[pos] := dxy ;
+ rxy[pos] := rxy ;
+ pxy[pos] := pxy ;
+ cxy[pos] := cxy ;
+ nxy[pos] := nxy ;
+enddef ;
+
+def initialize_box (expr n,x,y,w,h,d) =
+ numeric bpos ; bpos := 0 ; initialize_box_pos(bpos,n,x,y,w,h,d) ;
+enddef ;
+
+def initialize_area (expr fn,fx,fy,fw,fh,fd,
+ tn,tx,ty,tw,th,td) =
+ numeric fpos ; fpos := 1 ; initialize_box_pos(fpos,fn,fx,fy,fw,fh,fd) ;
+ numeric tpos ; tpos := 2 ; initialize_box_pos(tpos,tn,tx,ty,tw,th,td) ;
+ do_initialize_area (fpos, tpos) ;
+enddef ;
+
+def do_initialize_area (expr fpos, tpos) =
+ lxy := lxy[fpos] ;
+ llxy := (xpart llxy[fpos], ypart llxy[tpos]) ;
+ lrxy := lrxy[tpos] ;
+ urxy := (xpart urxy[tpos], ypart urxy[fpos]) ;
+ ulxy := ulxy[fpos] ;
+ wxy := xpart lrxy - xpart llxy ;
+ hxy := hxy[fpos] ;
+ dxy := dxy[tpos] ;
+ rxy := lxy shifted (wxy,0) ;
+ pxy := llxy--lrxy--urxy--ulxy--cycle ;
+ cxy := center pxy ;
+enddef ;
+
+def set_par_line_height (expr ph, pd) =
+ par_strut_height := if ph>0 : ph elseif StrutHeight>0 : StrutHeight else : 8pt fi ;
+ par_strut_depth := if pd>0 : pd elseif StrutDepth >0 : StrutDepth else : 3pt fi ;
+ par_line_height := par_strut_height + par_strut_depth ;
+enddef ;
+
+def initialize_par (expr fn,fx,fy,fw,fh,fd,
+ tn,tx,ty,tw,th,td,
+ mn,mx,my,mw,mh,md,
+ pn,px,py,pw,ph,pd,
+ rw,rl,rr,rh,ra,ri) =
+
+ numeric fpos ; fpos := 1 ; initialize_box_pos(fpos,fn,fx,fy,fw,fh,fd) ;
+ numeric tpos ; tpos := 2 ; initialize_box_pos(tpos,tn,tx,ty,tw,th,td) ;
+ numeric mpos ; mpos := 3 ; initialize_box_pos(mpos,mn,mx,my,mw,mh,md) ;
+ numeric ppos ; ppos := 4 ; initialize_box_pos(ppos,pn,px,py,pw,ph,pd) ;
+
+ numeric par_strut_height, par_strut_depth, par_line_height ;
+
+ set_par_line_height (ph, pd) ;
+
+ do_initialize_area (fpos, tpos) ;
+ do_initialize_par (fpos, tpos, mpos, ppos, rw,rl,rr,rh,ra,ri) ;
+
+enddef ;
+
+def initialize_area_par (expr fn,fx,fy,fw,fh,fd,
+ tn,tx,ty,tw,th,td,
+ wn,wx,wy,ww,wh,wd) =
+
+ numeric fpos ; fpos := 1 ; initialize_box_pos(fpos,fn,fx,fy,fw,fh,fd) ;
+ numeric tpos ; tpos := 2 ; initialize_box_pos(tpos,tn,tx,ty,tw,th,td) ;
+ numeric wpos ; wpos := 3 ; initialize_box_pos(wpos,wn,wx,wy,ww,wh,wd) ;
+
+ numeric par_strut_height, par_strut_depth, par_line_height ;
+
+ set_par_line_height (wh, wd) ;
+
+ numeric ffpos ; ffpos := 4 ; initialize_box_pos(ffpos,wn,wx,fy,0,wh,wd) ;
+ numeric ttpos ; ttpos := 5 ; initialize_box_pos(ttpos,wn,wx+ww,ty,0,wh,wd) ;
+
+ do_initialize_area (ffpos, ttpos) ;
+
+ numeric mpos ; mpos := 6 ; freeze_box(mpos) ;
+
+ do_initialize_par (fpos, tpos, mpos, ffpos, 0,0,0,0,0,0) ;
+
+enddef ;
+
+def do_initialize_par (expr fpos, tpos, mpos, ppos, rw,rl,rr,rh,ra,ri) =
+
+ pair lref, rref, pref, lhref, rhref ;
+
+ % clip the page area to the left and right skips
+
+ llxy[mpos] := llxy[mpos] shifted (+rl,0) ;
+ lrxy[mpos] := lrxy[mpos] shifted (-rr,0) ;
+ urxy[mpos] := urxy[mpos] shifted (-rr,0) ;
+ ulxy[mpos] := ulxy[mpos] shifted (+rl,0) ;
+
+ % fixate the leftskip, rightskip and hanging indentation
+
+ lref := (xpart llxy[mpos],ypart ulxy[ppos]) ; lhref := lref shifted (rh,0) ;
+ rref := (xpart lrxy[mpos],ypart urxy[ppos]) ; rhref := rref shifted (rh,0) ;
+
+ pref := lxy[ppos] ;
+
+ if nxy[tpos] > nxy[fpos] :
+ if nxy[fpos] = nxy[mpos] :
+ % first of multiple pages
+ llxy[tpos] := llxy[mpos] ;
+ lrxy[tpos] := lrxy[mpos] ;
+ urxy[tpos] := lrxy[mpos] shifted (0,par_line_height) ;
+ ulxy[tpos] := llxy[mpos] shifted (0,par_line_height) ;
+ boxgriddirection := down ;
+ elseif nxy[tpos] = nxy[mpos] :
+ % last of multiple pages
+ llxy[fpos] := ulxy[mpos] shifted (0,-par_line_height) ;
+ lrxy[fpos] := urxy[mpos] shifted (0,-par_line_height) ;
+ urxy[fpos] := urxy[mpos] ;
+ ulxy[fpos] := ulxy[mpos] ;
+ boxgriddirection := up ;
+ else :
+ % middle of multiple pages
+ llxy[fpos] := ulxy[mpos] shifted (0,-par_line_height) ;
+ lrxy[fpos] := urxy[mpos] shifted (0,-par_line_height) ;
+ urxy[fpos] := urxy[mpos] ;
+ ulxy[fpos] := ulxy[mpos] ;
+ llxy[tpos] := llxy[mpos] ;
+ lrxy[tpos] := lrxy[mpos] ;
+ urxy[tpos] := lrxy[mpos] shifted (0,par_line_height) ;
+ ulxy[tpos] := llxy[mpos] shifted (0,par_line_height) ;
+ boxgriddirection := up ;
+ fi ;
+ else :
+ % just one page
+ boxgriddirection := up ;
+ fi ;
+
+ path txy, bxy, pxy, mxy ;
+
+ txy := originpath ; % top
+ bxy := originpath ; % bottom
+ pxy := originpath ; % composed
+
+ boolean lefthang, righthang, somehang ;
+
+ % we only hang on the first of a multiple page background
+
+ if nxy[mpos] > nxy[fpos] :
+ lefthang := righthang := somehang := false ;
+ else :
+ lefthang := (rh>0) ; righthang := (rh<0) ; somehang := false ;
+ fi ;
+
+ if lefthang :
+ mxy := boundingbox (lref -- lref shifted (rh,ra*par_line_height)) ;
+ elseif righthang :
+ mxy := boundingbox (rref -- rref shifted (rh,ra*par_line_height)) ;
+ else :
+ mxy := originpath ;
+ fi ;
+
+ if round(ypart llxy[fpos]) = round(ypart llxy[tpos]) :
+
+ % We have a one-liner. Watch how er use the bottom pos for
+ % determining the height.
+
+ llxy[fpos] := (xpart llxy[fpos], ypart llxy[tpos]) ;
+ ulxy[fpos] := (xpart ulxy[fpos], ypart ulxy[tpos]) ;
+
+ else :
+
+ % We have a multi-liner. For convenience we now correct the
+ % begin and end points for indentation.
+
+ if lefthang and (round(ypart llxy[tpos]) >= round(ypart lrcorner mxy)) :
+ llxy[tpos] := (xpart lhref, ypart llxy[tpos]) ;
+ ulxy[tpos] := (xpart lhref, ypart ulxy[tpos]) ;
+ else :
+ llxy[tpos] := (xpart lref, ypart llxy[tpos]) ;
+ ulxy[tpos] := (xpart lref, ypart ulxy[tpos]) ;
+ fi ;
+
+ if righthang and (round(ypart lrxy[fpos]) >= round(ypart llcorner mxy)) :
+ lrxy[fpos] := (xpart rhref, ypart lrxy[fpos]) ;
+ urxy[fpos] := (xpart rhref, ypart urxy[fpos]) ;
+ else :
+ lrxy[fpos] := (xpart rref, ypart lrxy[fpos]) ;
+ urxy[fpos] := (xpart rref, ypart urxy[fpos]) ;
+ fi ;
+
+ fi ;
+
+ somehang := (ypart ulxy[fpos]>ypart llcorner mxy) and
+ (ypart llxy[tpos]<ypart llcorner mxy) ;
+
+ if round(ypart llxy[fpos]) = round(ypart llxy[tpos]) :
+
+ % A (short) one-liner goes into the top box.
+
+ txy := llxy[fpos] -- lrxy[tpos] -- urxy[tpos] -- ulxy[fpos] -- cycle ;
+
+ elseif (round(ypart llxy[fpos]) = round(ypart ulxy[tpos])) and
+ (round(xpart lrxy[tpos]) < round(xpart llxy[fpos])) :
+
+ % We have a sentence that spans two lines but with only end
+ % of line and begin of line segments. We need to take care of
+ % indentation.
+
+ txy := llxy[fpos] -- lrxy[fpos] -- urxy[fpos] -- ulxy[fpos] -- cycle ;
+ bxy := llxy[tpos] -- lrxy[tpos] -- urxy[tpos] -- ulxy[tpos] -- cycle ;
+
+ elseif (round(ypart llxy[fpos]) = round(ypart ulxy[tpos])) :
+
+ % We have a sentence that spans two lines but with overlap.
+
+ pxy :=
+ llxy[tpos] -- lrxy[tpos] -- urxy[tpos] -- lrxy[fpos] --
+ urxy[fpos] -- ulxy[fpos] -- llxy[fpos] -- ulxy[tpos] -- cycle ;
+
+ elseif lefthang and somehang :
+
+ % We have a sentence that spans more than two lines with
+ % left hanging indentation.
+
+ pxy :=
+ llxy[tpos] -- lrxy[tpos] -- urxy[tpos] --
+ (xpart urxy[fpos],ypart urxy[tpos]) --
+ urxy[fpos] -- ulxy[fpos] -- llxy[fpos] --
+ if round(ypart urxy[tpos]) < round(ypart llcorner mxy) :
+ (xpart lrcorner mxy,ypart llxy[fpos]) --
+ lrcorner mxy --
+ (xpart llxy[tpos],ypart llcorner mxy) --
+ else :
+ (xpart llxy[tpos],ypart llxy[fpos]) --
+ fi
+ cycle ;
+
+ elseif righthang and somehang :
+
+ % We have a sentence that spans more than two lines with
+ % right hanging indentation.
+
+ pxy :=
+ llxy[tpos] -- lrxy[tpos] -- urxy[tpos] --
+ if round(ypart urxy[tpos]) < round(ypart llcorner mxy) :
+ (xpart lrcorner mxy,ypart urxy[tpos]) --
+ lrcorner mxy -- llcorner mxy --
+ else :
+ (xpart urxy[fpos],ypart urxy[tpos]) --
+ fi
+ urxy[fpos] -- ulxy[fpos] -- llxy[fpos] --
+ (xpart llxy[tpos],ypart llxy[fpos]) --
+ cycle ;
+
+ else :
+
+ % We have a sentence that spans more than two lines with
+ % no hanging indentation.
+
+ pxy :=
+ llxy[tpos] -- lrxy[tpos] -- urxy[tpos] --
+ (xpart urxy[fpos],ypart urxy[tpos]) --
+ urxy[fpos] -- ulxy[fpos] -- llxy[fpos] --
+ (xpart llxy[tpos],ypart llxy[fpos]) --
+ cycle ;
+
+ fi ;
+
+ pxy := simplified pxy ;
+ pxy := unspiked pxy ;
+
+enddef ;
+
+TopSkip := 0 ; % will move
+StrutHeight := 0 ; % will move
+
+pair last_multi_par_shift ; last_multi_par_shift := origin ;
+
+def relocate_multipars (expr xy) =
+ last_multi_par_shift := xy ;
+ for i=1 upto nofmultipars :
+ multipars[i] := multipars[i] shifted last_multi_par_shift ;
+ endfor ;
+enddef ;
+
+boolean compensate_multi_par_topskip ;
+boolean span_multi_column_pars ;
+boolean auto_multi_par_hsize ;
+boolean enable_multi_par_fallback ;
+
+compensate_multi_par_topskip := true ;
+span_multi_column_pars := false ;
+auto_multi_par_hsize := false ; % true ;
+enable_multi_par_fallback := true ;
+
+vardef multi_par_at_top (expr i) =
+ (round (ypart ulcorner multipars[i]) = round (ypart ulcorner (TextAreas[multirefs[i]] shifted last_multi_par_shift)))
+enddef ;
+
+numeric nofmultipars ; nofmultipars := 0 ;
+
+boolean obey_multi_par_hang ; obey_multi_par_hang := true ;
+boolean obey_multi_par_more ; obey_multi_par_more := true ;
+boolean snap_multi_par_tops ; snap_multi_par_tops := true ;
+boolean local_multi_par_area ; local_multi_par_area := false ;
+boolean use_multi_par_region ; use_multi_par_region := false ;
+boolean ignore_multi_par_page ; ignore_multi_par_page := false ;
+boolean force_multi_par_chain ; force_multi_par_chain := true ;
+boolean one_piece_multi_par ; one_piece_multi_par := false ;
+boolean check_multi_par_chain ; check_multi_par_chain := true ; % extra page check
+
+boolean multi_column_first_page_hack; multi_column_first_page_hack := true ; % seems to work ok
+
+def simplify_multi_pars = % boundingbox ipv shape als optie
+ for i := 1 upto nofmultipars :
+ multipars[i] := boundingbox multipars[i] ;
+ endfor ;
+enddef ;
+
+def save_multipar (expr i, l, p) =
+ nofmultipars := nofmultipars + 1 ;
+ multirefs[nofmultipars] := i ;
+ multilocs[nofmultipars] := l ;
+ multipars[nofmultipars] := unspiked (simplified p) ;
+enddef ;
+
+def prepare_multi_pars (expr fn,fx,fy,fw,fh,fd,
+ tn,tx,ty,tw,th,td,
+ wn,wx,wy,ww,wh,wd,
+ pn,px,py,pw,ph,pd,
+ rw,rl,rr,rh,ra,ri) =
+
+% fill PlainTextArea withcolor red ;
+% fill RegionTextArea withcolor green;
+
+ if span_multi_column_pars :
+ begingroup ;
+ save TextAreas ; path TextAreas[] ;
+ save NOfTextAreas ; numeric NOfTextAreas ;
+ for i=1 upto NOfTextColumns :
+ TextAreas[i] := TextColumns[i] ;
+ endfor ;
+ NOfTextAreas := NOfTextColumns ;
+ fi ;
+
+ last_multi_par_shift := origin ;
+
+% save _tx_, _ty_, _fx_, _fy_ ;
+% if use_multi_par_region :
+% _fx_ := fx ; %min(xpart ulcorner RegionTextArea,fx) ;
+% _fy_ := fy ; %min(xpart ulcorner RegionTextArea,fy) ;
+% _tx_ := min(xpart lrcorner RegionTextArea,tx) ;
+% _ty_ := min(xpart lrcorner RegionTextArea,ty) ;
+% else :
+% _fx_ := fx ;
+% _fy_ := fy ;
+% _tx_ := tx ;
+% _ty_ := ty ;
+% fi ;
+
+% numeric fpos ; fpos := 1 ; initialize_box_pos(fpos,fn,_fx_,_fy_,fw,fh,fd) ;
+% numeric tpos ; tpos := 2 ; initialize_box_pos(tpos,tn,_tx_,_ty_,tw,th,td) ;
+ numeric fpos ; fpos := 1 ; initialize_box_pos(fpos,fn,fx,fy,fw,fh,fd) ;
+ numeric tpos ; tpos := 2 ; initialize_box_pos(tpos,tn,tx,ty,tw,th,td) ;
+ numeric wpos ; wpos := 3 ; initialize_box_pos(wpos,wn,wx,wy,ww,wh,wd) ;
+ numeric ppos ; ppos := 4 ; initialize_box_pos(ppos,pn,px,py,pw,ph,pd) ;
+
+ if local_multi_par_area :
+ RealPageNumber := fn ;
+ NOfTextAreas := 1 ;
+ NOfSavedTextAreas := 0 ;
+ TextAreas[1] := TextAreas[0] ;
+ TextColumns[1] := TextColumns[0] ;
+ nxy[fpos] := nxy[tpos] := nxy[wpos] := nxy[ppos] := RealPageNumber ;
+ elseif use_multi_par_region :
+ RealPageNumber := fn ;
+ NOfTextAreas := 1 ;
+ NOfSavedTextAreas := 0 ;
+ TextAreas[1] := RegionTextArea ;
+ TextColumns[1] := RegionTextArea ;
+ nxy[fpos] := nxy[tpos] := nxy[wpos] := nxy[ppos] := RealPageNumber ;
+ elseif ignore_multi_par_page :
+ RealPageNumber := fn ;
+ nxy[fpos] := nxy[tpos] := nxy[wpos] := nxy[ppos] := RealPageNumber ;
+ fi ;
+
+ numeric par_strut_height, par_strut_depth, par_line_height ;
+
+ set_par_line_height (ph, pd) ;
+
+ numeric par_hang_indent, par_hang_after, par_indent, par_left_skip, par_right_skip ;
+
+ par_hang_indent := rh ;
+ par_hang_after := ra ;
+ par_indent := ri ;
+ par_left_skip := rl ;
+ par_right_skip := rr ;
+
+ pair par_start_pos ;
+ pair par_stop_pos ;
+
+ par_start_pos := llxy[fpos]
+ if par_indent <0: shifted (-par_indent, 0) fi
+ if par_left_skip<0: shifted (-par_left_skip,0) fi ;
+
+ par_stop_pos := lrxy[tpos]
+ if par_right_skip<0: shifted (par_right_skip,0) fi ; % nasty as the endpos can be shifted by rightskip
+
+ if wxy[wpos]>0 :
+ left_skip := rl + xpart llxy[wpos] - xpart llxy[ppos] ;
+ right_skip := rw - left_skip - ww ;
+ else :
+ left_skip := rl ;
+ right_skip := rr ;
+ fi ;
+
+ path multipar, multipars[] ;
+ numeric multiref, multirefs[] ;
+ numeric multiloc, multilocs[] ; % 1=begin 2=between 3=end
+
+ numeric multi_par_pages ; multi_par_pages := nxy[tpos]-nxy[fpos]+1 ;
+
+ % locals .. why can't i move these outside?
+
+ vardef _pmp_set_multipar_ (expr i) =
+ ( (TextAreas[i] leftenlarged -left_skip) rightenlarged (-right_skip
+ if auto_multi_par_hsize : + rw - bbwidth(TextAreas[i]) fi) )
+ enddef ;
+
+ vardef _pmp_snapped_multi_pos_ (expr p) =
+ if snap_multi_par_tops :
+ if abs(ypart p - ypart ulcorner multipar) < par_line_height :
+ (xpart p,ypart ulcorner multipar)
+ else :
+ p
+ fi
+ else :
+ p
+ fi
+ enddef ;
+
+ vardef _pmp_estimated_par_lines_ (expr h) =
+ round(h/par_line_height)
+ enddef ;
+
+ vardef _pmp_top_multi_par_(expr p) =
+ (round(_pmp_estimated_par_lines_(bbheight(p)*par_line_height))=round(bbheight(p)))
+ enddef ;
+
+ vardef _pmp_multi_par_tsc_(expr p) =
+ if _pmp_top_multi_par_(p) : TopSkipCorrection else : 0 fi
+ enddef ;
+
+ vardef _pmp_estimated_multi_par_height_ (expr n, t) =
+ if round(par_line_height)=0 :
+ 0
+ else :
+ save ok, h ; boolean ok ;
+ numeric h ; h := 0 ;
+ ok := false ;
+ if (nxy[fpos]=RealPageNumber-1) :
+ for i := 1 upto NOfSavedTextAreas :
+ if (InsideSavedTextArea(i,par_start_pos)) :
+ ok := true ;
+ h := h + _pmp_estimated_par_lines_(ypart ulxy[fpos] - ypart llcorner SavedTextAreas[i]) ;
+ elseif ok :
+ h := h + _pmp_estimated_par_lines_(bbheight(SavedTextAreas[i])) ;
+ fi ;
+ endfor ;
+ fi ;
+ if ok :
+ for i := 1 upto n-1 :
+ h := h + _pmp_estimated_par_lines_(bbheight(TextAreas[i])) ;
+ endfor ;
+ else :
+ % already: ok := false ;
+ for i := 1 upto n-1 :
+ if (InsideTextArea(i,par_start_pos)) :
+ ok := true ;
+ h := h + _pmp_estimated_par_lines_(ypart ulxy[fpos] - ypart llcorner TextAreas[i]) ;
+ elseif ok :
+ h := h + _pmp_estimated_par_lines_(bbheight(TextAreas[i])) ;
+ fi ;
+ endfor ;
+ fi ;
+ h
+ fi
+ enddef ;
+
+ vardef _pmp_left_top_hang_ (expr same_area) =
+
+ par_hang_after := ra + _pmp_estimated_par_lines_(py-fy) ;
+
+ if (par_hang_indent>0) and (par_hang_after<0) and obey_multi_par_hang :
+ pair _ul_ ; _ul_ := (xpart ulcorner multipar, ypart _pmp_snapped_multi_pos_(ulxy[fpos]));
+ pair _pa_ ; _pa_ := _ul_ shifted (0,par_hang_after*par_line_height) ;
+ _pa_ := (xpart _pa_,max(ypart _pa_ -TopSkipCorrection,ypart llcorner multipar)) ;
+ if same_area :
+ _pa_ := (xpart _pa_,max(ypart _pa_ -TopSkipCorrection,ypart llxy[tpos])) ;
+ fi ;
+ if obey_multi_par_more and (round(par_line_height)>0) :
+ par_hang_after := min(0,round(par_hang_after + (ypart urxy[fpos]-ypart _pa_)/par_line_height)) ;
+ fi ;
+ (xpart _ul_ + par_hang_indent, ypart lrxy[fpos]) --
+ (xpart _ul_ + par_hang_indent, ypart _pa_) --
+ (xpart ulcorner multipar, ypart _pa_)
+ else :
+ (xpart ulcorner multipar, ypart lrxy[fpos])
+ fi
+ enddef ;
+
+ vardef _pmp_right_top_hang_ (expr same_area) =
+
+ par_hang_after := ra + _pmp_estimated_par_lines_(py-fy) ;
+
+ if (par_hang_indent<0) and (par_hang_after<0) and obey_multi_par_hang :
+ pair _ur_ ; _ur_ := (xpart urcorner multipar, ypart _pmp_snapped_multi_pos_(urxy[fpos])) ;
+ pair _pa_ ; _pa_ := _ur_ shifted (0,par_hang_after*par_line_height) ;
+ _pa_ := (xpart _pa_,max(ypart _pa_ -TopSkipCorrection,ypart llcorner multipar)) ;
+ if same_area :
+ _pa_ := (xpart _pa_,max(ypart _pa_ -TopSkipCorrection,ypart _pmp_snapped_multi_pos_(ulxy[tpos]))) ;
+ fi ;
+ if obey_multi_par_more and (round(par_line_height)>0) :
+ par_hang_after := min(0,round(par_hang_after + (ypart urxy[fpos]-ypart _pa_)/par_line_height)) ;
+ fi ;
+ (xpart urcorner multipar, ypart _pa_) --
+ (xpart _ur_ + par_hang_indent, ypart _pa_) --
+ (xpart _ur_ + par_hang_indent, ypart _pmp_snapped_multi_pos_(urxy[fpos]))
+ else :
+ (xpart urcorner multipar, ypart _pmp_snapped_multi_pos_(urxy[fpos]))
+ fi
+ enddef ;
+
+ vardef _pmp_x_left_top_hang_ (expr i, t) =
+ par_hang_after := min(0,ra + _pmp_estimated_multi_par_height_(i,t)) ;
+ if (par_hang_indent>0) and (par_hang_after<0) :
+ pair _ul_ ; _ul_ := ulcorner multipar ;
+ pair _pa_ ; _pa_ := _ul_ shifted (0,par_hang_after*par_line_height) ;
+ _pa_ := (xpart _pa_,max(ypart _pa_,ypart llcorner multipar)) ;
+ if t :
+ _pa_ := (xpart _pa_,max(ypart _pa_,ypart llxy[tpos]));
+ fi ;
+ if abs(ypart _pa_-ypart llxy[tpos])<par_line_height :
+ _pa_ := (xpart _pa_,ypart llxy[tpos]);
+ fi ;
+ if abs(ypart _pa_-ypart llcorner multipar)<par_line_height :
+ _pa_ := (xpart _pa_,ypart llcorner multipar);
+ fi ;
+ (xpart _ul_, ypart _pa_) --
+ (xpart _ul_ + par_hang_indent, ypart _pa_) --
+ (xpart _ul_ + par_hang_indent, ypart _ul_)
+ else :
+ ulcorner multipar
+ fi
+ enddef ;
+
+ vardef _pmp_x_right_top_hang_ (expr i, t) =
+ par_hang_after := min(0,ra + _pmp_estimated_multi_par_height_(i,t)) ;
+ if (par_hang_indent<0) and (par_hang_after<0) :
+ pair _ur_ ; _ur_ := urcorner multipar ;
+ pair _pa_ ; _pa_ := _ur_ shifted (0,par_hang_after*par_line_height) ;
+ _pa_ := (xpart _pa_,max(ypart _pa_,ypart lrcorner multipar)) ;
+ if t :
+ _pa_ := (xpart _pa_,max(ypart _pa_,ypart _pmp_snapped_multi_pos_(urxy[tpos]))) ;
+ fi ;
+ (xpart _ur_ + par_hang_indent, ypart _ur_) --
+ (xpart _ur_ + par_hang_indent, ypart _pa_) --
+ (xpart _ur_, ypart _pa_)
+ else :
+ urcorner multipar
+ fi
+ enddef ;
+
+ vardef _pmp_left_bottom_hang_ (expr same_area) =
+ pair _ll_, _sa_, _pa_ ;
+ _sa_ := if same_area : llxy[tpos] else : lrcorner multipar fi ;
+ if (par_hang_indent>0) and (par_hang_after>0) and obey_multi_par_hang :
+ _ll_ := (xpart ulcorner multipar, ypart _pmp_snapped_multi_pos_(ulxy[fpos])) ;
+ _pa_ := _ll_ shifted (0,-par_hang_after*par_line_height) ;
+ _pa_ := (xpart _pa_,max(ypart _pa_,ypart llcorner multipar)) ;
+ if same_area :
+ _pa_ := (xpart _pa_,max(ypart _pa_,ypart _sa_)) ;
+ fi ;
+ if obey_multi_par_more and (round(par_line_height)>0) :
+ par_hang_after := max(0,round(par_hang_after - (ypart urxy[fpos]-ypart _pa_)/par_line_height)) ;
+ fi ;
+ _pa_ --
+ (xpart _pa_ + par_hang_indent,ypart _pa_) --
+ (xpart _pa_ + par_hang_indent,ypart _sa_)
+ else :
+ (xpart llcorner multipar, ypart _sa_)
+ fi
+ enddef ;
+
+ vardef _pmp_right_bottom_hang_ (expr same_area) =
+ pair _lr_, _sa_, _pa_ ;
+ _sa_ := if same_area : _pmp_snapped_multi_pos_(ulxy[tpos]) else : lrcorner multipar fi ;
+ if (par_hang_indent<0) and (par_hang_after>0) and obey_multi_par_hang :
+ _lr_ := (xpart urcorner multipar, ypart _pmp_snapped_multi_pos_(urxy[fpos])) ;
+ _pa_ := _lr_ shifted (0,-par_hang_after*par_line_height) ;
+ _pa_ := (xpart _pa_,max(ypart _pa_,ypart lrcorner multipar)) ;
+ if same_area :
+ _pa_ := (xpart _pa_,max(ypart _pa_,ypart _pmp_snapped_multi_pos_(ulxy[tpos]))) ;
+ fi ;
+ if obey_multi_par_more and (round(par_line_height)>0) :
+ par_hang_after := max(0,round(par_hang_after - (ypart urxy[fpos]-ypart _pa_)/par_line_height)) ;
+ fi ;
+ (xpart _pa_ + par_hang_indent,ypart _sa_) --
+ (xpart _pa_ + par_hang_indent,ypart _pa_) --
+ _pa_
+ else :
+ (xpart lrcorner multipar, ypart _sa_)
+ fi
+ enddef ;
+
+ vardef _pmp_x_left_bottom_hang_ (expr i, t) =
+ pair _ll_, _sa_, _pa_ ;
+ _sa_ := if t : llxy[tpos] else : llcorner multipar fi ;
+ if (par_hang_indent>0) and (ra>0) :
+ par_hang_after := max(0,ra - _pmp_estimated_multi_par_height_(i,t)) ;
+ _ll_ := ulcorner multipar ;
+ _pa_ := _ll_ shifted (0,-par_hang_after*par_line_height) ;
+ _pa_ := (xpart _pa_,max(ypart _pa_,ypart llcorner multipar)) ;
+ _pa_ := (xpart _pa_,max(ypart _pa_,ypart _sa_)) ;
+ % we need to compensate for topskip enlarged areas
+ if abs(ypart _pa_ - ypart _sa_) > par_line_height :
+ (xpart _pa_ + par_hang_indent,ypart _sa_) --
+ (xpart _pa_ + par_hang_indent,ypart _pa_) --
+ fi
+ _pa_
+ else :
+ (xpart llcorner multipar, ypart _sa_)
+ fi
+ enddef ;
+
+ vardef _pmp_x_right_bottom_hang_ (expr i, t) =
+ pair _lr_, _sa_, _pa_ ;
+ _sa_ := if t : _pmp_snapped_multi_pos_(ulxy[tpos]) else : llcorner multipar fi ;
+ if (par_hang_indent<0) and (ra>0) :
+ par_hang_after := max(0,ra - _pmp_estimated_multi_par_height_(i, t)) ;
+ _lr_ := urcorner multipar ;
+ _pa_ := _lr_ shifted (0,-par_hang_after*par_line_height) ;
+ _pa_ := (xpart _pa_,max(ypart _pa_,ypart lrcorner multipar)) ;
+ _pa_ := (xpart _pa_,max(ypart _pa_,ypart _sa_)) ;
+ % we need to compensate for topskip enlarged areas
+ _pa_
+ if abs(ypart _pa_ - ypart _sa_) > par_line_height :
+ -- (xpart _pa_ + par_hang_indent,ypart _pa_)
+ -- (xpart _pa_ + par_hang_indent,ypart _sa_)
+ fi
+ else :
+ (xpart lrcorner multipar, ypart _sa_)
+ fi
+ enddef ;
+
+ % def _pmp_test_multipar_ =
+ % multipar := boundingbox multipar ;
+ % enddef ;
+
+ % first loop
+
+ ii := 0 ; nn := NOfTextAreas+1 ; nofmultipars := 0 ;
+
+ if enable_multi_par_fallback and (nxy[fpos]=RealPageNumber)
+ and (nxy[tpos]=RealPageNumber) and not (InsideSomeTextArea(lxy[fpos]) and InsideSomeTextArea(rxy[tpos])) :
+
+ % fallback
+
+ % multipar :=
+ % llxy[fpos] --
+ % lrxy[tpos] --
+ % urxy[tpos] --
+ % ulxy[fpos] -- cycle ;
+ %
+ % save_multipar (1,1,multipar) ;
+
+ % we need to take the boundingbox because there can be
+ % more lines and we want a proper rectange
+
+ multipar :=
+ ulxy[fpos] --
+ urxy[tpos] --
+ lrxy[fpos] --
+ llxy[tpos] -- cycle ;
+
+ save_multipar (1,1,boundingbox(multipar)) ;
+
+ else :
+
+ % normal
+
+ for i=1 upto NOfTextAreas :
+
+ TopSkipCorrection := 0 ;
+
+ multipar := _pmp_set_multipar_(i) ;
+
+ % watch how we compensate for negative indentation
+
+ if (nxy[fpos]=RealPageNumber) and (InsideTextArea(i,par_start_pos)) :
+
+ % first one in chain
+
+ ii := i ;
+
+ if (nxy[tpos]=RealPageNumber) and (InsideTextArea(i,par_stop_pos)) :
+
+ % in same area
+
+ nn := i ;
+
+ if compensate_multi_par_topskip and (round(LineHeight-ph-pd)=0) :
+
+ TopSkipCorrection := TopSkip - StrutHeight ;
+
+ if round(ypart ulxy[fpos] + TopSkipCorrection) = round(ypart ulcorner TextAreas[i]) :
+ ulxy[fpos] := ulxy[fpos] shifted (0,TopSkipCorrection) ;
+ urxy[fpos] := urxy[fpos] shifted (0,TopSkipCorrection) ;
+ else :
+ TopSkipCorrection := 0 ;
+ fi ;
+
+ fi ;
+
+ if ypart llxy[fpos] = ypart llxy[tpos] :
+
+ multipar :=
+ llxy[fpos] --
+ lrxy[tpos] --
+ _pmp_snapped_multi_pos_(urxy[tpos]) --
+ _pmp_snapped_multi_pos_(ulxy[fpos]) --
+ cycle ;
+
+ save_multipar (i,1,multipar) ;
+
+ elseif (ypart llxy[fpos] = ypart ulxy[tpos]) and (xpart llxy[tpos] < xpart llxy[fpos]) :
+
+ % two loners
+
+ multipar := if obey_multi_par_hang :
+
+ _pmp_right_bottom_hang_(true) --
+ _pmp_right_top_hang_(true) --
+ _pmp_snapped_multi_pos_(urxy[fpos]) --
+ lrxy[fpos] --
+
+ else :
+
+ llxy[fpos] --
+ (xpart urcorner multipar, ypart llxy[fpos]) --
+ (xpart urcorner multipar, ypart ulxy[fpos]) --
+ _pmp_snapped_multi_pos_(ulxy[fpos]) --
+
+ fi cycle ;
+
+ save_multipar (i,1,multipar) ;
+
+ multipar := _pmp_set_multipar_(i) ;
+
+ multipar := if obey_multi_par_hang :
+
+ _pmp_left_bottom_hang_(true) --
+ llxy[tpos] --
+ _pmp_snapped_multi_pos_(ulxy[tpos]) --
+ _pmp_left_top_hang_(true) --
+
+ else :
+
+ (xpart llcorner multipar, ypart llxy[tpos]) --
+ llxy[tpos] --
+ _pmp_snapped_multi_pos_(ulxy[tpos]) --
+ (xpart llcorner multipar, ypart ulxy[tpos]) --
+
+ fi cycle ;
+
+ save_multipar (i,1,multipar) ;
+
+ else :
+
+ multipar := if obey_multi_par_hang :
+
+ _pmp_left_bottom_hang_(true) --
+ llxy[tpos] --
+ _pmp_snapped_multi_pos_(ulxy[tpos]) --
+ _pmp_right_bottom_hang_(true) --
+ _pmp_right_top_hang_(true) --
+ _pmp_snapped_multi_pos_(urxy[fpos]) --
+ lrxy[fpos] --
+ _pmp_left_top_hang_(true) --
+
+ else :
+
+ (xpart llcorner multipar, ypart llxy[tpos]) --
+ llxy[tpos] --
+ _pmp_snapped_multi_pos_(ulxy[tpos]) --
+ (xpart lrcorner multipar, ypart ulxy[tpos]) --
+ (xpart urcorner multipar, ypart urxy[fpos]) --
+ _pmp_snapped_multi_pos_(urxy[fpos]) --
+ lrxy[fpos] --
+ (xpart ulcorner multipar, ypart lrxy[fpos]) --
+
+ fi cycle ;
+
+ save_multipar (i,1,multipar) ;
+
+ fi ;
+
+ else :
+
+ multipar := if obey_multi_par_hang :
+
+ _pmp_left_bottom_hang_(false) --
+ _pmp_right_bottom_hang_(false) --
+ _pmp_right_top_hang_(false) --
+ _pmp_snapped_multi_pos_(urxy[fpos]) --
+ lrxy[fpos] --
+ _pmp_left_top_hang_(false) --
+
+ else :
+
+ llcorner multipar --
+ lrcorner multipar --
+ (xpart urcorner multipar, ypart urxy[fpos]) --
+ _pmp_snapped_multi_pos_(urxy[fpos]) --
+ lrxy[fpos] --
+ (xpart ulcorner multipar, ypart lrxy[fpos]) --
+
+ fi cycle ;
+
+ save_multipar (i,1,multipar) ;
+
+ fi ;
+
+ elseif (nxy[tpos]=RealPageNumber) and (InsideTextArea(i,par_stop_pos)) :
+
+ % last one in chain
+
+ nn := i ;
+
+ if obey_multi_par_hang and obey_multi_par_more :
+
+ multipar :=
+ _pmp_x_left_top_hang_(i,true) --
+ _pmp_x_right_top_hang_(i,true) --
+ _pmp_x_right_bottom_hang_(i,true) --
+ _pmp_snapped_multi_pos_(ulxy[tpos]) --
+ llxy[tpos] --
+ _pmp_x_left_bottom_hang_(i,true) --
+ cycle ;
+
+ else :
+
+ multipar :=
+ ulcorner multipar --
+ urcorner multipar --
+ (xpart lrcorner multipar, ypart urxy[tpos]) --
+ _pmp_snapped_multi_pos_(ulxy[tpos]) --
+ llxy[tpos] --
+ (xpart llcorner multipar, ypart llxy[tpos]) --
+ cycle ;
+
+ fi ;
+
+ save_multipar (i,3,multipar) ;
+
+ elseif multi_column_first_page_hack and ((nxy[fpos]=RealPageNumber) and (nxy[tpos]>=RealPageNumber) and (NOfTextColumns>1)) :
+
+ save_multipar (i,2,multipar) ;
+
+ else :
+ % handled later
+ fi ;
+
+ endfor ;
+
+
+ % second loop
+
+ if force_multi_par_chain or (ii > 1) :
+
+ for i=ii+1 upto nn-1 :
+
+ % rest of chain / todo : hang
+
+ % hm, the second+ column in column sets now gets lost in a NOfTextColumns
+
+ if (not check_multi_par_chain) or ((nxy[fpos]<RealPageNumber) and (nxy[tpos]>RealPageNumber)) :
+
+ multipar := _pmp_set_multipar_(i) ;
+
+ if obey_multi_par_hang and obey_multi_par_more :
+
+ multipar :=
+ _pmp_x_left_top_hang_(i,false) --
+ _pmp_x_right_top_hang_(i,false) --
+ _pmp_x_right_bottom_hang_(i,false) --
+ _pmp_x_left_bottom_hang_(i,false) --
+ cycle ;
+
+ fi ;
+
+ save_multipar(i,2,multipar) ;
+
+ fi ;
+
+ endfor ;
+
+ fi ;
+
+ % end of normal/fallback
+
+ fi ;
+
+ if span_multi_column_pars :
+ endgroup ;
+ fi ;
+
+ % potential safeguard:
+
+ % for i=1 upto nofmultipars :
+ % if length p <= 4 :
+ % multipars[i] := boundingbox(multipars[i]) ;
+ % fi ;
+ % end ;
+
+ % quick hack for gb:
+
+ one_piece_multi_par := (nofmultipars=1) and (pn=tn) ;
+
+enddef ;
+
+def boxgridoptions = withcolor .8red enddef ;
+def boxlineoptions = withcolor .8blue enddef ;
+def boxfilloptions = withcolor .8white enddef ;
+
+numeric boxgridtype ; boxgridtype := 0 ;
+numeric boxlinetype ; boxlinetype := 1 ;
+numeric boxfilltype ; boxfilltype := 1 ;
+numeric boxdashtype ; boxdashtype := 0 ;
+pair boxgriddirection ; boxgriddirection := up ;
+numeric boxgridwidth ; boxgridwidth := 1pt ;
+numeric boxlinewidth ; boxlinewidth := 1pt ;
+numeric boxlineradius ; boxlineradius := 0pt ;
+numeric boxfilloffset ; boxfilloffset := 0pt ;
+numeric boxgriddistance ; boxgriddistance := .5cm ;
+numeric boxgridshift ; boxgridshift := 0pt ;
+
+def draw_box =
+ draw pxy boxlineoptions withpen pencircle scaled boxlinewidth ;
+ draw lxy -- rxy boxlineoptions withpen pencircle scaled boxgridwidth ;
+enddef ;
+
+def draw_par = % 1 2 3 11 12
+ do_draw_par(pxy) ; do_draw_par(txy) ; do_draw_par(bxy) ;
+ for i = pxy, txy, bxy :
+ if boxgridtype = 1 :
+ boxgriddirection := origin ;
+ draw baseline_grid (i,boxgriddirection,true ) boxgridoptions ;
+ elseif boxgridtype = 2 :
+ boxgriddirection := origin ;
+ draw baseline_grid (i,boxgriddirection,false) boxgridoptions ;
+ elseif boxgridtype = 3 :
+ boxgriddirection := origin ;
+ draw baseline_grid (i,boxgriddirection,true ) boxgridoptions ;
+ draw baseline_grid (i,boxgriddirection,true ) shifted (0,ExHeight) boxgridoptions ;
+ elseif boxgridtype = 4 :
+ boxgriddirection := origin ;
+ draw baseline_grid (i,boxgriddirection,true ) shifted (0,ExHeight/2) boxgridoptions ;
+ elseif boxgridtype = 11 :
+ draw graphic_grid(i,boxgriddistance,boxgriddistance,boxgriddistance/2,boxgriddistance/2) ;
+ elseif boxgridtype = 12 :
+ draw graphic_grid(i,boxgriddistance,boxgriddistance,0,0) ;
+ fi ;
+ endfor ;
+enddef ;
+
+def do_show_par (expr p, r, c) =
+ if length(p) > 2 :
+ for i=0 upto length(p) :
+ draw fullcircle scaled r shifted point i of p withpen pencircle scaled .5pt withcolor c ;
+ endfor ;
+ fi ;
+ draw p withpen pencircle scaled .5pt withcolor c ;
+enddef ;
+
+def show_par =
+ if length(mxy) > 2 :
+ draw mxy dashed evenly withpen pencircle scaled .5pt withcolor .5white ;
+ fi ;
+ do_show_par(txy, 4pt, .5green) ;
+ do_show_par(bxy, 6pt, .5blue ) ;
+ do_show_par(pxy, 8pt, .5red ) ;
+ draw pref withpen pencircle scaled 2pt ;
+enddef ;
+
+def sort_multi_pars =
+ if nofmultipars>1 :
+ begingroup ;
+ save _p_, _n_ ; path _p_ ; numeric _n_ ;
+ for i := 1 upto nofmultipars :
+ if multilocs[i] = 3 :
+ _p_ := multipars[nofmultipars] ;
+ multipars[nofmultipars] := multipars[i] ;
+ multipars[i] := _p_ ;
+ _n_ := multirefs[nofmultipars] ;
+ multirefs[nofmultipars] := multirefs[i] ;
+ multirefs[i] := _n_ ;
+ _n_ := multilocs[nofmultipars] ;
+ multilocs[nofmultipars] := multilocs[i] ;
+ multilocs[i] := _n_ ;
+ fi ;
+ endfor ;
+ endgroup ;
+ fi ;
+enddef ;
+
+def collapse_multi_pars =
+ if nofmultipars>1 :
+ begingroup ;
+ save _nofmultipars_ ; numeric _nofmultipars_ ;
+ _nofmultipars_ := 1 ;
+ sort_multi_pars ; % block not in order: 1, 3, 2....
+ for i:=1 upto nofmultipars-1 :
+ if (round(xpart(llcorner multipars[i]-llcorner multipars[i+1]))=0) and
+ (round(xpart(lrcorner multipars[i]-lrcorner multipars[i+1]))=0) :
+ multilocs[_nofmultipars_] := multilocs[i+1] ;
+ multirefs[_nofmultipars_] := multirefs[i+1] ;
+ multipars[_nofmultipars_] :=
+ ulcorner multipars[_nofmultipars_] --
+ urcorner multipars[_nofmultipars_] --
+ lrcorner multipars[i+1] --
+ llcorner multipars[i+1] -- cycle ;
+ else :
+ _nofmultipars_ := _nofmultipars_ + 1 ;
+ multipars[_nofmultipars_] := multipars[i+1] ;
+ multilocs[_nofmultipars_] := multilocs[i+1] ;
+ multirefs[_nofmultipars_] := multirefs[i+1] ;
+ fi ;
+ endfor ;
+ nofmultipars := _nofmultipars_ ;
+ endgroup ;
+ fi ;
+enddef ;
+
+def draw_multi_pars =
+ for i=1 upto nofmultipars :
+ do_draw_par(multipars[i]) ;
+ if boxgridtype= 1 :
+ draw baseline_grid (multipars[i],if multilocs[i]=1: down else: up fi,true) ;
+ elseif boxgridtype= 2 :
+ draw baseline_grid (multipars[i],if multilocs[i]=1: down else: up fi,false) ;
+ elseif boxgridtype= 3 :
+ draw baseline_grid (multipars[i],if multilocs[i]=1: down else: up fi,true) ;
+ draw baseline_grid (multipars[i],if multilocs[i]=1: down else: up fi,true) shifted (0,ExHeight) ;
+ elseif boxgridtype= 4 :
+ draw baseline_grid (multipars[i],if multilocs[i]=1: down else: up fi,true) shifted (0,ExHeight/2) ;
+ elseif boxgridtype=11 :
+ draw graphic_grid(multipars[i],boxgriddistance,boxgriddistance,boxgriddistance/2,boxgriddistance/2) ;
+ elseif boxgridtype=12 :
+ draw graphic_grid(multipars[i],boxgriddistance,boxgriddistance,0,0) ;
+ fi ;
+ endfor ;
+enddef ;
+
+def show_multi_pars =
+ for i=1 upto nofmultipars :
+ do_show_par(multipars[i], 6pt, .5blue) ;
+ endfor ;
+enddef ;
+
+vardef do_draw_par (expr p) =
+ if (length p>2) and (bbwidth(p)>1) and (bbheight(p)>1) :
+ save pp ; path pp ;
+ if (boxlineradius>0) and (boxlinetype=2) :
+ pp := p cornered boxlineradius ;
+ else :
+ pp := p ;
+ fi ;
+ if boxfilltype>0 :
+ if boxfilloffset>0 :
+ % temporary hack
+ begingroup ;
+ interim linejoin := mitered ;
+ filldraw pp boxfilloptions withpen pencircle scaled (2*boxfilloffset) ;
+ endgroup ;
+ else :
+ fill pp boxfilloptions ;
+ fi ;
+ fi ;
+ if boxlinetype>0 :
+ draw pp boxlineoptions withpen pencircle scaled boxlinewidth ;
+ fi ;
+ fi ;
+enddef ;
+
+vardef baseline_grid (expr pxy, pdir, at_baseline) =
+ save width ; width := bbwidth(pxy) ;
+ save height ; height := bbheight(pxy) ;
+ if (par_line_height>0) and (height>1) and (width>1) and (boxgridwidth>0) :
+ save i, grid, bb ; picture grid ; pair start ; path bb ;
+ def _do_ (expr start) =
+ % 1 = normal, 2 = with background (i.e. no shine-through)
+ if boxdashtype = 2 :
+ draw start -- start shifted (width,0)
+ withpen pencircle scaled boxgridwidth
+ boxfilloptions ;
+ fi ;
+ draw start -- start shifted (width,0)
+ if boxdashtype > 0 :
+ dashed evenly
+ fi
+ withpen pencircle scaled boxgridwidth
+ boxgridoptions ;
+ enddef ;
+ grid := image ( % fails with inlinespace
+ if pdir=up :
+ for i = if at_baseline : par_strut_depth else : 0 fi step par_line_height until max(height,par_line_height) :
+ _do_ (llcorner pxy shifted (0,+i)) ;
+ endfor ;
+ else :
+ for i = if at_baseline : par_strut_height else : 0 fi step par_line_height until height :
+ _do_ (ulcorner pxy shifted (0,-i)) ;
+ endfor ;
+ fi ;
+ ) ;
+ clip grid to pxy ;
+ bb := boundingbox grid ;
+ grid := grid shifted (0,boxgridshift) ;
+ setbounds grid to bb ;
+ grid
+ else :
+ nullpicture
+ fi
+enddef ;
+
+vardef graphic_grid (expr pxy, dx, dy, x, y) =
+ if (bbheight(pxy)>dy) and (bbwidth(pxy)>dx) and (boxgridwidth>0) :
+ save grid ; picture grid ;
+ grid := image (
+ for i = xpart llcorner pxy step dx until xpart lrcorner pxy :
+ draw (i,ypart llcorner pxy) -- (i,ypart ulcorner pxy) withpen pencircle scaled boxgridwidth ;
+ endfor ;
+ for i = ypart llcorner pxy step dy until ypart ulcorner pxy :
+ draw (xpart llcorner pxy,i) -- (xpart lrcorner pxy,i) withpen pencircle scaled boxgridwidth ;
+ endfor
+ ) shifted (x,y) ;
+ clip grid to pxy ;
+ grid
+ else :
+ nullpicture
+ fi
+enddef ;
+
+def anchor_box (expr n,x,y,w,h,d) =
+ currentpicture := currentpicture shifted (-x,-y) ;
+enddef ;
+
+let draw_area = draw_box ;
+let anchor_area = anchor_box ;
+let anchor_par = anchor_box ;
+
+numeric sync_n[], sync_p[][], sync_w[][], sync_h[][], sync_d[][], sync_t[][] ;
+pair sync_xy[][] ; color sync_c[][] ;
+
+def ResetSyncTasks =
+ path SyncPaths[] ; numeric SyncTasks[], NOfSyncPaths, CurrentSyncClass ;
+ NOfSyncPaths := CurrentSyncClass := 0 ;
+ if unknown SyncLeftOffset : numeric SyncLeftOffset ; SyncLeftOffset := 0 ; fi ;
+ if unknown SyncWidth : numeric SyncWidth ; SyncWidth := 0 ; fi ;
+ if unknown SyncThreshold : numeric SyncThreshold ; SyncThreshold := LineHeight ; fi ;
+ if unknown SyncColor : color SyncColor ; SyncColor := .5white ; fi ;
+ if (SyncLeftOffset = 0) and (SyncWidth = 0) :
+ SyncWidth := if known TextWidth : TextWidth else : -1cm fi ;
+ fi ;
+enddef ;
+
+ResetSyncTasks ;
+
+vardef SyncBox(expr n, i, leftoffset, width, topoffset, bottomoffset) =
+ save o ; pair o ; o := (xpart llcorner PlainTextArea,ypart sync_xy[n][i]) ;
+ o shifted (leftoffset,sync_h[n][i]+topoffset) --
+ o shifted (width+leftoffset,sync_h[n][i]+topoffset) --
+ o shifted (width+leftoffset,bottomoffset) --
+ o shifted (leftoffset,bottomoffset) -- cycle
+enddef ;
+
+def SetSyncColor(expr n, i, c) =
+ sync_c[n][i] := c ;
+enddef ;
+
+def SetSyncThreshold(expr n, i, th) =
+ sync_th[n][i] := th ;
+enddef ;
+
+vardef TheSyncColor(expr n, i) =
+ if known sync_c[n][i] : sync_c[n][i] else : SyncColor fi
+enddef ;
+
+vardef TheSyncThreshold(expr n, i) =
+ if known sync_th[n][i] : sync_th[n][i] else : SyncThreshold fi
+enddef ;
+
+vardef PrepareSyncTasks(expr n, collapse, extendtop, prestartnext) =
+ ResetSyncTasks ;
+ if known sync_n[n] :
+ CurrentSyncClass := n ;
+ save ok, l, d ; boolean ok ; ok := false ; NOfSyncPaths := l := 0 ;
+ for i=1 upto sync_n[n] :
+ if RealPageNumber > sync_p[n][i] :
+ l := i ;
+ elseif RealPageNumber = sync_p[n][i] :
+ NOfSyncPaths := NOfSyncPaths + 1 ;
+ if not ok :
+ if i>1 :
+ if sync_t[n][i-1] = sync_t[n][i] :
+ SyncPaths[NOfSyncPaths] := SyncBox(n, i, SyncLeftOffset, SyncWidth, PaperHeight, -PaperHeight) ;
+ SyncTasks[NOfSyncPaths] := i ;
+ else :
+ SyncPaths[NOfSyncPaths] := SyncBox(n, i-1, SyncLeftOffset, SyncWidth, PaperHeight, -PaperHeight) ;
+ SyncTasks[NOfSyncPaths] := i-1 ;
+ NOfSyncPaths := NOfSyncPaths + 1 ;
+ SyncPaths[NOfSyncPaths] := SyncBox(n, i, SyncLeftOffset, SyncWidth, 0, -PaperHeight) ;
+ SyncTasks[NOfSyncPaths] := i ;
+ fi ;
+ else :
+ SyncPaths[NOfSyncPaths] := SyncBox(n, i, SyncLeftOffset, SyncWidth, 0, -PaperHeight) ;
+ SyncTasks[NOfSyncPaths] := i ;
+ fi ;
+ else :
+ SyncPaths[NOfSyncPaths] := SyncBox(n, i, SyncLeftOffset, SyncWidth, 0, -PaperHeight) ;
+ SyncTasks[NOfSyncPaths] := i ;
+ fi ;
+ ok := true ;
+ fi ;
+ endfor ;
+ if (NOfSyncPaths = 0) and (l > 0) :
+ NOfSyncPaths := 1 ;
+ SyncPaths[NOfSyncPaths] := SyncBox(n, l, SyncLeftOffset, SyncWidth, PaperHeight, -PaperHeight) ;
+ SyncTasks[NOfSyncPaths] := l ;
+ fi ;
+ if NOfSyncPaths > 0 :
+ for i = 1 upto NOfSyncPaths-1 :
+ SyncPaths[i] := topboundary SyncPaths[i] -- reverse topboundary SyncPaths[i+1] -- cycle ;
+ endfor ;
+ if unknown SyncThresholdMethod :
+ numeric SyncThresholdMethod ; SyncThresholdMethod := 2 ;
+ fi ;
+ if extendtop :
+ if SyncThresholdMethod = 1 :
+ if NOfSyncPaths>1 :
+ d := ypart (ulcorner PlainTextArea - sync_xy[n][SyncTasks[2]]) ;
+ if (SyncTasks[2]>1) and (d > 0pt) and (d <= TheSyncThreshold(n,sync_t[n][SyncTasks[2]])) and (sync_p[n][SyncTasks[2]] = RealPageNumber) :
+ SyncPaths[2] := SyncPaths[2] topenlarged PaperHeight ;
+ fi ;
+ fi ;
+ else :
+ for i = 1 upto NOfSyncPaths :
+ d := ypart (ulcorner PlainTextArea - sync_xy[n][SyncTasks[i]]) ;
+ if (d > 0) and (d <= TheSyncThreshold(n,sync_t[n][SyncTasks[i]])) and (sync_p[n][SyncTasks[i]] = RealPageNumber) :
+ SyncPaths[i] := SyncPaths[i] topenlarged PaperHeight ;
+ fi ;
+ endfor ;
+ fi ;
+ fi ;
+ if prestartnext :
+ if NOfSyncPaths>1 :
+ if SyncTasks[NOfSyncPaths] < sync_n[n] : % there is a next one
+ d := ypart (ulcorner PlainTextArea - sync_xy[n][SyncTasks[NOfSyncPaths]+1]) ;
+ if (d > 0) and (d <= TheSyncThreshold(n, sync_t[n][SyncTasks[i]])) and (sync_p[n][SyncTasks[NOfSyncPaths]+1] = RealPageNumber+1) :
+ SyncPaths[NOfSyncPaths+1] :=
+ (xpart ulcorner SyncPaths[NOfSyncPaths],ypart llcorner PlainTextArea) --
+ (xpart urcorner SyncPaths[NOfSyncPaths],ypart llcorner PlainTextArea) --
+ lrcorner SyncPaths[NOfSyncPaths] --
+ llcorner SyncPaths[NOfSyncPaths] -- cycle ;
+ SyncTasks[NOfSyncPaths+1] := SyncTasks[NOfSyncPaths]+1 ;
+ NOfSyncPaths := NOfSyncPaths + 1 ;
+ fi ;
+ fi ;
+ fi ;
+ else :
+ if NOfSyncPaths>1 :
+ d := ypart (sync_xy[n][SyncTasks[NOfSyncPaths]] - llcorner PlainTextArea) ;
+ if (d < TheSyncThreshold(n, SyncTasks[NOfSyncPaths])) :
+ NOfSyncPaths := NOfSyncPaths - 1 ;
+ SyncPaths[NOfSyncPaths] := SyncPaths[NOfSyncPaths] bottomenlarged PaperHeight ;
+ fi ;
+ fi ;
+ fi ;
+ if (NOfSyncPaths>1) and collapse :
+ save j ; numeric j ; j := 1 ;
+ for i = 2 upto NOfSyncPaths :
+ if sync_t[n][SyncTasks[i]] = sync_t[n][SyncTasks[j]] :
+ SyncPaths[j] := boundingbox image (draw SyncPaths[i] ; draw SyncPaths[j] ; ) ;
+ SyncTasks[j] := SyncTasks[i] ;
+ else :
+ j := j + 1 ;
+ SyncPaths[j] := SyncPaths[i] ;
+ SyncTasks[j] := SyncTasks[i] ;
+ fi ;
+ endfor ;
+ NOfSyncPaths := j ;
+ fi ;
+ fi ;
+ fi ;
+enddef ;
+
+def SyncTask(expr n) =
+ if known SyncTasks[n] : SyncTasks[n] else : 0 fi
+enddef ;
+
+def FlushSyncTasks =
+ for i = 1 upto NOfSyncPaths :
+ ProcessSyncTask(SyncPaths[i], TheSyncColor(CurrentSyncClass,sync_t[CurrentSyncClass][SyncTasks[i]])) ;
+ endfor ;
+enddef ;
+
+def ProcessSyncTask(expr p, c) =
+ fill p withcolor c ;
+enddef ;
diff --git a/Master/texmf-dist/metapost/context/base/mp-crop.mpiv b/Master/texmf-dist/metapost/context/base/mp-crop.mpiv
new file mode 100644
index 00000000000..260823e687f
--- /dev/null
+++ b/Master/texmf-dist/metapost/context/base/mp-crop.mpiv
@@ -0,0 +1,194 @@
+%D \module
+%D [ file=mp-crop.mp,
+%D version=2011.06.23,
+%D title=\CONTEXT\ \METAPOST\ graphics,
+%D subtitle=Cropmarks,
+%D author=Hans Hagen,
+%D date=\currentdate,
+%D copyright={PRAGMA / Hans Hagen \& Ton Otten}]
+%C
+%C This module is part of the \CONTEXT\ macro||package and is
+%C therefore copyrighted by \PRAGMA. See mreadme.pdf for
+%C details.
+
+if known context_crop : endinput ; fi ;
+
+boolean context_crop ; context_crop := true ;
+
+vardef crop_marks_lines (expr box, length, offset, nx, ny) =
+ save p ; picture p ; save w, h, x, y ; numeric w, h, x, y ;
+ p := image (
+ x := if nx = 0 : 1 else : nx - 1 fi ;
+ y := if ny = 0 : 1 else : ny - 1 fi ;
+ w := bbwidth (box) / x ;
+ h := bbheight(box) / y ;
+ for i=0 upto y :
+ draw ((llcorner box) -- (llcorner box) shifted (-length,0)) shifted (-offset,i*h) ;
+ draw ((lrcorner box) -- (lrcorner box) shifted ( length,0)) shifted ( offset,i*h) ;
+ endfor ;
+ for i=0 upto x :
+ draw ((llcorner box) -- (llcorner box) shifted (0,-length)) shifted (i*w,-offset) ;
+ draw ((ulcorner box) -- (ulcorner box) shifted (0, length)) shifted (i*w, offset) ;
+ endfor ;
+ ) ;
+ setbounds p to box ;
+ p
+enddef ;
+
+vardef crop_marks_cmyk =
+ save p ; picture p ; p := image (
+ fill ulcircle scaled 12.5 withcolor (1,0,0,0) ;
+ fill urcircle scaled 12.5 withcolor (0,1,0,0) ;
+ fill lrcircle scaled 12.5 withcolor (0,0,1,0) ;
+ fill llcircle scaled 12.5 withcolor (0,0,0,1) ;
+ draw (-10,0) -- (10,0) ;
+ draw (0,-10) -- (0,10) ;
+ draw fullcircle scaled 12.5 ;
+ ) ;
+ setbounds p to fullsquare scaled 20 ;
+ p
+enddef ;
+
+vardef crop_marks_gray =
+ save p ; picture p ; p := image (
+ fill ulcircle scaled 12.5 withcolor (0.00) ;
+ fill urcircle scaled 12.5 withcolor (0.25) ;
+ fill lrcircle scaled 12.5 withcolor (0.50) ;
+ fill llcircle scaled 12.5 withcolor (0.75) ;
+ draw (-10,0) -- (10,0) ;
+ draw (0,-10) -- (0,10) ;
+ draw (-6,0) -- (6,0) withcolor white ;
+ draw (0,-6) -- (0,6) withcolor white ;
+ draw fullcircle scaled 12.5 ;
+ ) ;
+ setbounds p to fullsquare scaled 20 ;
+ p
+enddef ;
+
+vardef crop_marks_cmykrgb =
+ save p ; picture p ; p := image (
+ fill ulcircle scaled 15 withcolor (1,0,0) ;
+ fill urcircle scaled 15 withcolor (0,1,0) ;
+ fill lrcircle scaled 15 withcolor (0,0,1) ;
+ fill llcircle scaled 15 withcolor (.5,.5,.5) ;
+ fill ulcircle scaled 10 withcolor (1,0,0,0) ;
+ fill urcircle scaled 10 withcolor (0,1,0,0) ;
+ fill lrcircle scaled 10 withcolor (0,0,1,0) ;
+ fill llcircle scaled 10 withcolor (0,0,0,1) ;
+ draw (-10,0) -- (10,0) ;
+ draw (0,-10) -- (0,10) ;
+ draw fullcircle scaled 10 ;
+ draw fullcircle scaled 15 ;
+ ) ;
+ setbounds p to fullsquare scaled 20 ;
+ p
+enddef ;
+
+vardef crop_color(expr c, h, w, dx, dy, ts) =
+ image (
+ save p ; path p ;
+ for i=1 upto 6 :
+ p := fullsquare
+ xscaled w
+ yscaled h
+ shifted (dx,dy-i*h) ;
+ fill p
+ withcolor (crop_colors[i]*c) ;
+ draw textext("\format{'@0.2f'," & decimal crop_colors[i] & "}")
+ scaled ts
+ shifted center p withcolor white ;
+ endfor ;
+ )
+enddef ;
+
+vardef crop_gray(expr c, h, w, dx, dy, ts) =
+ image (
+ save p ; path p ;
+ for i=.05 step .05 until 1 :
+ p := fullsquare
+ xscaled w
+ yscaled h
+ shifted (20*(i-1)*w+dx,dy) ;
+ fill p
+ withcolor (i*c) ;
+ draw textext("\format{'@0.2f'," & decimal i & "}")
+ scaled ts
+ shifted center p withcolor white ;
+ endfor ;
+ )
+enddef ;
+
+% draw crop_marks_cmyk shifted llcorner more ;
+% draw crop_marks_cmyk shifted lrcorner more ;
+% draw crop_marks_cmyk shifted ulcorner more ;
+% draw crop_marks_cmyk shifted urcorner more ;
+
+def page_marks_add_color(expr width, height, length, offset) = % todo: namespace
+
+ path page ; page := fullsquare xscaled width yscaled height ;
+ path more ; more := page enlarged (offset+length/2,offset+length/2) ;
+
+ numeric crop_colors[] ;
+ crop_colors[1] := 1 ;
+ crop_colors[2] := 0.95 ;
+ crop_colors[3] := 0.75 ;
+ crop_colors[4] := 0.50 ;
+ crop_colors[5] := 0.25 ;
+ crop_colors[6] := 0.05 ;
+
+ numeric h ; h := height / 20 ;
+ numeric w ; w := width / 20 ;
+ numeric d ; d := offset + length/2 ;
+
+ draw crop_color((1,0,0,0),h,length,xpart ulcorner page - d, 10h,length/20) ;
+ draw crop_color((0,1,0,0),h,length,xpart ulcorner page - d,3.5h,length/20) ;
+ draw crop_color((0,0,1,0),h,length,xpart ulcorner page - d, -3h,length/20) ;
+
+ draw crop_color((0,1,1,0),h,length,xpart urcorner page + d, 10h,length/20) ;
+ draw crop_color((1,0,1,0),h,length,xpart urcorner page + d,3.5h,length/20) ;
+ draw crop_color((1,1,0,0),h,length,xpart urcorner page + d, -3h,length/20) ;
+
+ draw crop_gray((0,0,0,1),length, w,-xpart llcorner page,-ypart llcorner page + d ,w/20) ;
+ draw crop_gray((1,0,0,0),length/3,w,-xpart llcorner page, ypart llcorner page - d + 1length/3,w/20) ;
+ draw crop_gray((0,1,0,0),length/3,w,-xpart llcorner page, ypart llcorner page - d - 0length/3,w/20) ;
+ draw crop_gray((0,0,1,0),length/3,w,-xpart llcorner page, ypart llcorner page - d - 1length/3,w/20) ;
+
+ setbounds currentpicture to page ;
+
+enddef ;
+
+def page_marks_add_marking(expr width, height, length, offset) = % todo: namespace
+
+ path page ; page := fullsquare xscaled width yscaled height ;
+ path more ; more := page enlarged (offset+length/2,offset+length/2) ;
+
+ draw crop_marks_gray shifted center(topboundary more) shifted (0, offset+length);
+ draw crop_marks_cmyk shifted center(bottomboundary more) shifted (0,-offset-length);
+
+ setbounds currentpicture to page ;
+
+enddef ;
+
+def page_marks_add_lines(expr width, height, length, offset, nx, ny) = % todo: namespace
+
+ path page ; page := fullsquare xscaled width yscaled height ;
+ path more ; more := page enlarged (offset+length/2,offset+length/2) ;
+
+ draw crop_marks_lines(page,length,offset,nx,ny) ;
+
+ setbounds currentpicture to page ;
+
+enddef ;
+
+def page_marks_add_number(expr width, height, length, offset, n) = % todo: namespace
+
+ path page ; page := fullsquare xscaled width yscaled height ;
+ path more ; more := page enlarged (offset+length/2,offset+length/2) ;
+
+ for s=llcorner more, lrcorner more, ulcorner more, urcorner more :
+ draw textext(decimal n) shifted s ;
+ endfor ;
+
+ setbounds currentpicture to page ;
+
+enddef ;
diff --git a/Master/texmf-dist/metapost/context/base/mp-figs.mp b/Master/texmf-dist/metapost/context/base/mp-figs.mpii
index da5fa0d1691..aecdc07e76b 100644
--- a/Master/texmf-dist/metapost/context/base/mp-figs.mp
+++ b/Master/texmf-dist/metapost/context/base/mp-figs.mpii
@@ -1,5 +1,5 @@
%D \module
-%D [ file=mp-tool.mp,
+%D [ file=mp-figs.mp,
%D version=2003.01.15,
%D title=\CONTEXT\ \METAPOST\ graphics,
%D subtitle=figures,
@@ -11,40 +11,37 @@
%C therefore copyrighted by \PRAGMA. See licen-en.pdf for
%C details.
-if unknown context_tool : input mp-tool ; fi ;
-if known context_figs : endinput ; fi ;
+if known context_figs : endinput ; fi ;
boolean context_figs ; context_figs := true ;
% todo: check defined
def registerfigure(expr name,width,height) =
- begingroup ;
- save s ; string s ; s := cleanstring(name) ;
- scantokens( s & "_width := " & decimal(width)) ;
- scantokens( s & "_height := " & decimal(height)) ;
- endgroup ;
+ begingroup ;
+ save s ; string s ; s := cleanstring(name) ;
+ scantokens( s & "_width := " & decimal(width )) ;
+ scantokens( s & "_height := " & decimal(height)) ;
+ endgroup ;
enddef ;
vardef figuresize(expr name) =
- save s ; string s ; s := cleanstring(name) ;
- save p ; pair p ;
- scantokens( "p := " & "(" & s & "_width" & "," & s & "_height" & ")" ) ;
- p
+ save s, p ; string s ; pair p ;
+ s := cleanstring(name) ;
+ scantokens( "p := " & "(" & s & "_width" & "," & s & "_height" & ")" ) ;
+ p
enddef ;
vardef figurewidth(expr name) =
- xpart figuresize(name)
+ xpart figuresize(name)
enddef ;
vardef figureheight(expr name) =
- ypart figuresize(name)
+ ypart figuresize(name)
enddef ;
-def figuredimensions = figuresize enddef ; % for old times sake
+let figuredimensions = figuresize ; % for old times sake
def naturalfigure(expr name) =
externalfigure name xyscaled(figuresize(name))
enddef ;
-
-endinput
diff --git a/Master/texmf-dist/metapost/context/base/mp-figs.mpiv b/Master/texmf-dist/metapost/context/base/mp-figs.mpiv
new file mode 100644
index 00000000000..aecdc07e76b
--- /dev/null
+++ b/Master/texmf-dist/metapost/context/base/mp-figs.mpiv
@@ -0,0 +1,47 @@
+%D \module
+%D [ file=mp-figs.mp,
+%D version=2003.01.15,
+%D title=\CONTEXT\ \METAPOST\ graphics,
+%D subtitle=figures,
+%D author=Hans Hagen,
+%D date=\currentdate,
+%D copyright={PRAGMA / Hans Hagen \& Ton Otten}]
+%C
+%C This module is part of the \CONTEXT\ macro||package and is
+%C therefore copyrighted by \PRAGMA. See licen-en.pdf for
+%C details.
+
+if known context_figs : endinput ; fi ;
+
+boolean context_figs ; context_figs := true ;
+
+% todo: check defined
+
+def registerfigure(expr name,width,height) =
+ begingroup ;
+ save s ; string s ; s := cleanstring(name) ;
+ scantokens( s & "_width := " & decimal(width )) ;
+ scantokens( s & "_height := " & decimal(height)) ;
+ endgroup ;
+enddef ;
+
+vardef figuresize(expr name) =
+ save s, p ; string s ; pair p ;
+ s := cleanstring(name) ;
+ scantokens( "p := " & "(" & s & "_width" & "," & s & "_height" & ")" ) ;
+ p
+enddef ;
+
+vardef figurewidth(expr name) =
+ xpart figuresize(name)
+enddef ;
+
+vardef figureheight(expr name) =
+ ypart figuresize(name)
+enddef ;
+
+let figuredimensions = figuresize ; % for old times sake
+
+def naturalfigure(expr name) =
+ externalfigure name xyscaled(figuresize(name))
+enddef ;
diff --git a/Master/texmf-dist/metapost/context/base/mp-fobg.mp b/Master/texmf-dist/metapost/context/base/mp-fobg.mp
index 712efe751aa..f8b709572bb 100644
--- a/Master/texmf-dist/metapost/context/base/mp-fobg.mp
+++ b/Master/texmf-dist/metapost/context/base/mp-fobg.mp
@@ -11,8 +11,7 @@
%C therefore copyrighted by \PRAGMA. See licen-en.pdf for
%C details.
-if unknown context_tool : input mp-tool ; fi ;
-if known context_fobg : endinput ; fi ;
+if known context_fobg : endinput ; fi ;
boolean context_fobg ; context_fobg := true ;
diff --git a/Master/texmf-dist/metapost/context/base/mp-form.mp b/Master/texmf-dist/metapost/context/base/mp-form.mpii
index 60ea4cac214..d1dac32db23 100644
--- a/Master/texmf-dist/metapost/context/base/mp-form.mp
+++ b/Master/texmf-dist/metapost/context/base/mp-form.mpii
@@ -15,31 +15,15 @@
boolean mant_font ; mant_font := true ; % signals graph not to load form
-if known mplib :
- boolean fmt_loaded ; fmt_loaded := true ;
- expandafter endinput
-fi ;
-
-if known fmt_loaded : expandafter endinput fi ;
- boolean fmt_loaded ; fmt_loaded := true ;
+if known context_form : endinput ; fi ;
-if unknown fmt_precision :
- numeric fmt_precision ; fmt_precision := 3 ;
-fi ;
-
-if unknown fmt_initialize :
- boolean fmt_initialize ; fmt_initialize := true ;
-fi ;
-
-if unknown fmt_separator :
- string fmt_separator ; fmt_separator := "%" ;
-fi ;
-
-if unknown fmt_zerocheck :
- boolean fmt_zerocheck ; fmt_zerocheck := false ;
-fi ;
+boolean context_form ; context_form := true ;
-boolean fmt_metapost ; fmt_metapost := true ; % == use old method
+if unknown fmt_metapost : boolean fmt_metapost ; fmt_metapost := true ; fi ; % == use old method
+if unknown fmt_precision : numeric fmt_precision ; fmt_precision := 3 ; fi ;
+if unknown fmt_initialize : boolean fmt_initialize ; fmt_initialize := true ; fi ;
+if unknown fmt_separator : string fmt_separator ; fmt_separator := "%" ; fi ;
+if unknown fmt_zerocheck : boolean fmt_zerocheck ; fmt_zerocheck := false ; fi ;
% As said, all clever code is from John, the more stupid
% extensions are mine. The following string variables are
diff --git a/Master/texmf-dist/metapost/context/base/mp-form.mpiv b/Master/texmf-dist/metapost/context/base/mp-form.mpiv
new file mode 100644
index 00000000000..56df0bd63bf
--- /dev/null
+++ b/Master/texmf-dist/metapost/context/base/mp-form.mpiv
@@ -0,0 +1,30 @@
+%D \module
+%D [ file=mp-form.mp,
+%D version=2011.10.14,
+%D title=\CONTEXT\ \METAPOST\ graphics,
+%D subtitle=form support,
+%D author=Hans Hagen,
+%D date=\currentdate,
+%D copyright={PRAGMA / Hans Hagen \& Ton Otten}]
+%C
+%C This module is part of the \CONTEXT\ macro||package and is
+%C therefore copyrighted by \PRAGMA. See licen-en.pdf for
+%C details.
+
+% The graph package will be replaced by our own variant using
+% MetaPost 2 features and textext.
+
+if known context_form : endinput ; fi ;
+
+boolean context_form ; context_form := true ;
+
+string Fmfont_ ; Fmfont_ := "crap" ;
+
+% The following function accept a number or string that can be
+% converted to a number by \LUA. The first argument is a format
+% where @ can be used instead of %. The number is typeset in math
+% mode and @3e is converted into @.3e.
+
+vardef mfun_format_number(expr fmt, i) =
+ "\ctxlua{metapost.formatnumber('" & fmt & "'," & if string i : i else : decimal i fi & ")}"
+enddef
diff --git a/Master/texmf-dist/metapost/context/base/mp-func.mp b/Master/texmf-dist/metapost/context/base/mp-func.mp
deleted file mode 100644
index d8646ef3bdd..00000000000
--- a/Master/texmf-dist/metapost/context/base/mp-func.mp
+++ /dev/null
@@ -1,59 +0,0 @@
-%D \module
-%D [ file=mp-func.mp,
-%D version=2001.12.29,
-%D title=\CONTEXT\ \METAPOST\ graphics,
-%D subtitle=function hacks,
-%D author=Hans Hagen,
-%D date=\currentdate,
-%D copyright={PRAGMA / Hans Hagen \& Ton Otten}]
-%C
-%C This module is part of the \CONTEXT\ macro||package and is
-%C therefore copyrighted by \PRAGMA. See licen-en.pdf for
-%C details.
-
-%D Under construction.
-
-if unknown context_tool : input mp-tool ; fi ;
-if known context_func : endinput ; fi ;
-
-boolean context_func ; context_func := true ;
-
-string pathconnectors[] ;
-
-pathconnectors[0] := "," ;
-pathconnectors[1] := "--" ;
-pathconnectors[2] := ".." ;
-pathconnectors[3] := "..." ;
-
-vardef function (expr f) (expr u, t, b, e, s) = save x ; numeric x ;
- for xx := b step s until e :
- hide (x := xx ;) if xx>b : scantokens(pathconnectors[f]) fi
- (scantokens(u),scantokens(t))
- endfor
-enddef ;
-
-def punkedfunction = function (1) enddef ;
-def curvedfunction = function (2) enddef ;
-def tightfunction = function (3) enddef ;
-
-vardef constructedpath (expr f) (text t) =
- save ok ; boolean ok ; ok := false ;
- for i=t :
- if ok : scantokens(pathconnectors[f]) else : ok := true ; fi i
- endfor
-enddef ;
-
-def punkedpath = constructedpath (1) enddef ;
-def curvedpath = constructedpath (2) enddef ;
-def tightpath = constructedpath (3) enddef ;
-
-vardef constructedpairs (expr f) (text p) =
- save i ; i := -1 ;
- forever : exitif unknown p[incr(i)] ;
- if i>0 : scantokens(pathconnectors[f]) fi p[i]
- endfor
-enddef ;
-
-def punkedpairs = constructedpairs (1) enddef ;
-def curvedpairs = constructedpairs (2) enddef ;
-def tightpairs = constructedpairs (3) enddef ;
diff --git a/Master/texmf-dist/metapost/context/base/mp-func.mpii b/Master/texmf-dist/metapost/context/base/mp-func.mpii
new file mode 100644
index 00000000000..407d534e890
--- /dev/null
+++ b/Master/texmf-dist/metapost/context/base/mp-func.mpii
@@ -0,0 +1,58 @@
+%D \module
+%D [ file=mp-func.mp,
+%D version=2001.12.29,
+%D title=\CONTEXT\ \METAPOST\ graphics,
+%D subtitle=function hacks,
+%D author=Hans Hagen,
+%D date=\currentdate,
+%D copyright={PRAGMA / Hans Hagen \& Ton Otten}]
+%C
+%C This module is part of the \CONTEXT\ macro||package and is
+%C therefore copyrighted by \PRAGMA. See licen-en.pdf for
+%C details.
+
+%D Under construction.
+
+if known context_func : endinput ; fi ;
+
+boolean context_func ; context_func := true ;
+
+string pathconnectors[] ;
+
+pathconnectors[0] := "," ;
+pathconnectors[1] := "--" ;
+pathconnectors[2] := ".." ;
+pathconnectors[3] := "..." ;
+
+vardef function (expr f) (expr u, t, b, e, s) = save x ; numeric x ;
+ for xx := b step s until e :
+ hide (x := xx ;) if xx>b : scantokens(pathconnectors[f]) fi
+ (scantokens(u),scantokens(t))
+ endfor
+enddef ;
+
+def punkedfunction = function (1) enddef ;
+def curvedfunction = function (2) enddef ;
+def tightfunction = function (3) enddef ;
+
+vardef constructedpath (expr f) (text t) =
+ save ok ; boolean ok ; ok := false ;
+ for i=t :
+ if ok : scantokens(pathconnectors[f]) else : ok := true ; fi i
+ endfor
+enddef ;
+
+def punkedpath = constructedpath (1) enddef ;
+def curvedpath = constructedpath (2) enddef ;
+def tightpath = constructedpath (3) enddef ;
+
+vardef constructedpairs (expr f) (text p) =
+ save i ; i := -1 ;
+ forever : exitif unknown p[incr(i)] ;
+ if i>0 : scantokens(pathconnectors[f]) fi p[i]
+ endfor
+enddef ;
+
+def punkedpairs = constructedpairs (1) enddef ;
+def curvedpairs = constructedpairs (2) enddef ;
+def tightpairs = constructedpairs (3) enddef ;
diff --git a/Master/texmf-dist/metapost/context/base/mp-func.mpiv b/Master/texmf-dist/metapost/context/base/mp-func.mpiv
new file mode 100644
index 00000000000..26037f48cb7
--- /dev/null
+++ b/Master/texmf-dist/metapost/context/base/mp-func.mpiv
@@ -0,0 +1,78 @@
+%D \module
+%D [ file=mp-func.mp,
+%D version=2001.12.29,
+%D title=\CONTEXT\ \METAPOST\ graphics,
+%D subtitle=function hacks,
+%D author=Hans Hagen,
+%D date=\currentdate,
+%D copyright={PRAGMA / Hans Hagen \& Ton Otten}]
+%C
+%C This module is part of the \CONTEXT\ macro||package and is
+%C therefore copyrighted by \PRAGMA. See licen-en.pdf for
+%C details.
+
+%D Under construction.
+
+if known context_func : endinput ; fi ;
+
+boolean context_func ; context_func := true ;
+
+string mfun_pathconnectors[] ;
+
+mfun_pathconnectors[0] := "," ;
+mfun_pathconnectors[1] := "--" ;
+mfun_pathconnectors[2] := ".." ;
+mfun_pathconnectors[3] := "..." ;
+
+def pathconnectors = mfun_pathconnectors enddef ;
+
+vardef mfun_function (expr f) (expr u, t, b, e, s) =
+ save x ; numeric x ;
+ for xx := b step s until e :
+ hide (x := xx ;)
+ if xx > b :
+ scantokens(mfun_pathconnectors[f])
+ fi
+ (scantokens(u),scantokens(t))
+ endfor
+enddef ;
+
+def function = mfun_function enddef ; % let doesn't work here
+def punkedfunction = mfun_function (1) enddef ;
+def curvedfunction = mfun_function (2) enddef ;
+def tightfunction = mfun_function (3) enddef ;
+
+vardef mfun_constructedpath (expr f) (text t) =
+ save ok ; boolean ok ; ok := false ;
+ for i=t :
+ if ok :
+ scantokens(mfun_pathconnectors[f])
+ else :
+ ok := true ;
+ fi
+ i
+ endfor
+enddef ;
+
+def constructedpath = mfun_constructedpath enddef ; % let doesn't work here
+def punkedpath = mfun_constructedpath (1) enddef ;
+def curvedpath = mfun_constructedpath (2) enddef ;
+def tightpath = mfun_constructedpath (3) enddef ;
+
+vardef mfun_constructedpairs (expr f) (text p) =
+ save i ; i := -1 ;
+ forever :
+ exitif unknown p[incr(i)] ;
+ if i>0 :
+ scantokens(mfun_pathconnectors[f])
+ fi
+ p[i]
+ endfor
+enddef ;
+
+def constructedpairs = mfun_constructedpairs enddef ; % let doesn't work here
+def punkedpairs = mfun_constructedpairs (1) enddef ;
+def curvedpairs = mfun_constructedpairs (2) enddef ;
+def tightpairs = mfun_constructedpairs (3) enddef ;
+
+
diff --git a/Master/texmf-dist/metapost/context/base/mp-grid.mp b/Master/texmf-dist/metapost/context/base/mp-grid.mpii
index c87df821cfa..c49fbeec297 100644
--- a/Master/texmf-dist/metapost/context/base/mp-grid.mp
+++ b/Master/texmf-dist/metapost/context/base/mp-grid.mpii
@@ -13,8 +13,7 @@
%D Under construction.
-if unknown context_tool : input mp-tool ; fi ;
-if known context_grid : endinput ; fi ;
+if known context_grid : endinput ; fi ;
boolean context_grid ; context_grid := true ;
@@ -23,7 +22,7 @@ numeric fmt_precision ; fmt_precision := 3 ;
boolean fmt_initialize ; fmt_initialize := false ;
boolean fmt_zerocheck ; fmt_zerocheck := true ;
-if unknown fmt_loaded : input mp-form ; fi ;
+if unknown fmt_loaded : input "mp-form.mpii" ; fi ;
boolean fmt_pictures ; fmt_pictures := true ;
diff --git a/Master/texmf-dist/metapost/context/base/mp-grid.mpiv b/Master/texmf-dist/metapost/context/base/mp-grid.mpiv
new file mode 100644
index 00000000000..e7420e4f663
--- /dev/null
+++ b/Master/texmf-dist/metapost/context/base/mp-grid.mpiv
@@ -0,0 +1,142 @@
+%D \module
+%D [ file=mp-grid.mp,
+%D version=2000.07.10,
+%D title=\CONTEXT\ \METAPOST\ graphics,
+%D subtitle=grid support,
+%D author=Hans Hagen,
+%D date=\currentdate,
+%D copyright={PRAGMA / Hans Hagen \& Ton Otten}]
+%C
+%C This module is part of the \CONTEXT\ macro||package and is
+%C therefore copyrighted by \PRAGMA. See licen-en.pdf for
+%C details.
+
+%D Under construction.
+
+if known context_grid : endinput ; fi ;
+
+boolean context_grid ; context_grid := true ;
+
+string fmt_separator ; fmt_separator := "@" ;
+numeric fmt_precision ; fmt_precision := 3 ;
+boolean fmt_initialize ; fmt_initialize := false ;
+boolean fmt_zerocheck ; fmt_zerocheck := true ;
+
+if unknown fmt_loaded : input "mp-form.mpiv" ; fi ;
+
+boolean fmt_pictures ; fmt_pictures := true ;
+
+def do_format = if fmt_pictures : format else : formatstr fi enddef ;
+def do_mformat = if fmt_pictures : Mformat else : Mformatstr fi enddef ;
+
+numeric grid_eps ; grid_eps = eps ;
+
+def hlingrid (expr Min, Max, Step, Length, Width) text t =
+ image (
+ for i=Min step Step until Max+grid_eps :
+ draw (origin--(Width,0)) shifted (0,i*(Length/Max)) t ;
+ endfor ;
+ ) ;
+enddef ;
+
+def vlingrid (expr Min, Max, Step, Length, Height) text t =
+ image (
+ for i=Min step Step until Max+grid_eps :
+ draw (origin--(0,Height)) shifted (i*(Length/Max),0) t ;
+ endfor ;
+ ) ;
+enddef ;
+
+def hloggrid (expr Min, Max, Step, Length, Width) text t =
+ image (
+ for i=max(Min,1) step Step until min(Max,10)+grid_eps :
+ draw (origin--(Width,0)) shifted (0,Length*log(i)) t ;
+ endfor ;
+ ) ;
+enddef ;
+
+def vloggrid (expr Min, Max, Step, Length, Height) text t =
+ image (
+ for i=max(Min,1) step Step until min(Max,10)+grid_eps :
+ draw (origin--(0,Height)) shifted (Length*log(i),0) t ;
+ endfor ;
+ ) ;
+enddef ;
+
+vardef hlintext@#(expr Min, Max, Step, Length, Format) text t =
+ image (
+ for i=Min step Step until Max+grid_eps :
+ draw textext@#(mfun_format_number(Format,i)) shifted (0,i*(Length/Max)) t ;
+ endfor ;
+ )
+enddef ;
+
+vardef vlintext@#(expr Min, Max, Step, Length, Format) text t =
+ image (
+ for i=Min step Step until Max+grid_eps :
+ draw textext@#(mfun_format_number(Format,i)) shifted (i*(Length/Max),0) t ;
+ endfor ;
+ )
+enddef ;
+
+vardef hlogtext@#(expr Min, Max, Step, Length, Format) text t =
+ image (
+ for i=max(Min,1) step Step until min(Max,10)+grid_eps :
+ draw textext@#(mfun_format_number(Format,i)) shifted (0,Length*log(i)) t ;
+ endfor ;
+ )
+enddef ;
+
+vardef vlogtext@#(expr Min, Max, Step, Length, Format) text t =
+ image (
+ for i=max(Min,1) step Step until min(Max,10)+grid_eps :
+ draw textext@#(mfun_format_number(Format,i)) shifted (Length*log(i),0) t ;
+ endfor ;
+ )
+enddef ;
+
+vardef hlinlabel@#(expr Min, Max, Step, Length) text t =
+ image (
+ for i=Min step Step until Max+grid_eps :
+ draw thelabel@#(decimal i,(0,i*(Length/Max))) t ;
+ endfor ;
+ )
+enddef ;
+
+vardef vlinlabel@#(expr Min, Max, Step, Length) text t =
+ image (
+ for i=Min step Step until Max+grid_eps :
+ draw thelabel@#(decimal i,(i*(Length/Max),0)) t ;
+ endfor ;
+ )
+enddef ;
+
+vardef linlog(expr xy) = ( xpart xy, log(ypart xy)) enddef ;
+vardef loglin(expr xy) = (log(xpart xy), ypart xy) enddef ;
+vardef loglog(expr xy) = (log(xpart xy), log(ypart xy)) enddef ;
+vardef linlin(expr xy) = ( (xpart xy), (ypart xy)) enddef ;
+
+vardef loglinpath primary p = processpath (p) (loglin) enddef ;
+vardef linlogpath primary p = processpath (p) (linlog) enddef ;
+vardef loglogpath primary p = processpath (p) (loglog) enddef ;
+vardef linlinpath primary p = processpath (p) (linlin) enddef ;
+
+vardef processpath (expr p) (text pp) =
+ if path p :
+ for i=0 upto length(p)-1 :
+ pp(point i of p) .. controls
+ pp(postcontrol i of p) and
+ pp(precontrol (i+1) of p) ..
+ endfor
+ if cycle p :
+ cycle
+ else :
+ pp(point length(p) of p)
+ fi
+ elseif pair p :
+ pp(p)
+ else :
+ p
+ fi
+enddef ;
+
diff --git a/Master/texmf-dist/metapost/context/base/mp-grph.mp b/Master/texmf-dist/metapost/context/base/mp-grph.mpii
index 3cd9f2cfbda..148d9834a95 100644
--- a/Master/texmf-dist/metapost/context/base/mp-grph.mp
+++ b/Master/texmf-dist/metapost/context/base/mp-grph.mpii
@@ -13,8 +13,7 @@
%D Under construction.
-if unknown context_tool : input mp-tool ; fi ;
-if known context_grph : endinput ; fi ;
+if known context_grph : endinput ; fi ;
boolean context_grph ; context_grph := true ;
@@ -22,13 +21,29 @@ string CRLF ; CRLF := char 10 & char 13 ;
picture _currentpicture_ ;
+numeric _fig_nesting_ ; _fig_nesting_ := 0 ;
+
def beginfig (expr c) =
- begingroup
- charcode := c ;
- resetfig ;
- scantokens extra_beginfig ;
+ _fig_nesting_ := _fig_nesting_ + 1 ;
+ if _fig_nesting_ = 1 :
+ begingroup
+ charcode := c ;
+ resetfig ;
+ scantokens extra_beginfig ;
+ fi ;
enddef ;
+def endfig =
+ ; % safeguard
+ if _fig_nesting_ = 1 :
+ scantokens extra_endfig;
+ shipit ;
+ endgroup ;
+ fi ;
+ _fig_nesting_ := _fig_nesting_ - 1 ;
+enddef;
+
+
def resetfig =
clearxy ;
clearit ;
@@ -275,28 +290,21 @@ def graphictextdirective text t =
graphictextstring := graphictextstring & t & CRLF ;
enddef ;
-endinput
-
% example
-
-input mp-grph ;
-
- graphictextformat := "context" ;
-% graphictextformat := "plain" ;
-% graphictextformat := "latex" ; graphictextdirective "\documentclass[]{article}" ;
-
-beginfig (1) ;
- graphictext
- "\vbox{\hsize10cm \input tufte }"
- scaled 8
- withdrawcolor blue
- withfillcolor red
- withpen pencircle scaled 2pt ;
-endfig ;
-
-beginfig(1) ;
- loadfigure "gracht.mp" rotated 20 ;
- loadfigure "koe.mp" number 1 scaled 2 ;
-endfig ;
-
-end
+%
+% % graphictextformat := "context" ;
+% % graphictextformat := "plain" ;
+%
+% beginfig (1) ;
+% graphictext
+% "\vbox{\hsize10cm \input tufte }"
+% scaled 8
+% withdrawcolor blue
+% withfillcolor red
+% withpen pencircle scaled 2pt ;
+% endfig ;
+%
+% beginfig(1) ;
+% loadfigure "gracht.mp" rotated 20 ;
+% loadfigure "koe.mp" number 1 scaled 2 ;
+% endfig ;
diff --git a/Master/texmf-dist/metapost/context/base/mp-grph.mpiv b/Master/texmf-dist/metapost/context/base/mp-grph.mpiv
new file mode 100644
index 00000000000..3cbe42bdb45
--- /dev/null
+++ b/Master/texmf-dist/metapost/context/base/mp-grph.mpiv
@@ -0,0 +1,259 @@
+%D \module
+%D [ file=mp-grph.mp,
+%D version=2000.12.14,
+%D title=\CONTEXT\ \METAPOST\ graphics,
+%D subtitle=graphic text support,
+%D author=Hans Hagen,
+%D date=\currentdate,
+%D copyright={PRAGMA / Hans Hagen \& Ton Otten}]
+%C
+%C This module is part of the \CONTEXT\ macro||package and is
+%C therefore copyrighted by \PRAGMA. See licen-en.pdf for
+%C details.
+
+%D Under construction.
+
+if known context_grph : endinput ; fi ;
+
+boolean context_grph ; context_grph := true ;
+
+picture _currentpicture_ ;
+
+numeric _fig_nesting_ ; _fig_nesting_ := 0 ;
+
+def beginfig (expr c) =
+ _fig_nesting_ := _fig_nesting_ + 1 ;
+ if _fig_nesting_ = 1 :
+ begingroup
+ charcode := c ;
+ resetfig ;
+ scantokens extra_beginfig ;
+ fi ;
+enddef ;
+
+def endfig =
+ ; % safeguard
+ if _fig_nesting_ = 1 :
+ scantokens extra_endfig ;
+ shipit ;
+ endgroup ;
+ fi ;
+ _fig_nesting_ := _fig_nesting_ - 1 ;
+enddef;
+
+def resetfig =
+ clearxy ;
+ clearit ;
+ clearpen ;
+ pickup defaultpen ;
+ interim linecap := linecap ;
+ interim linejoin := linejoin ;
+ interim miterlimit := miterlimit ;
+ save _background_ ; color _background_ ; _background_ := background ;
+ save background ; color background ; background := _background_ ;
+ drawoptions () ;
+enddef ;
+
+def protectgraphicmacros =
+ save showtext ;
+ save beginfig ; let beginfig = begingraphictextfig ;
+ save endfig ; let endfig = endgraphictextfig ;
+ save end ; let end = relax ;
+ interim prologues := prologues ;
+ resetfig ; % resets currentpicture
+enddef ;
+
+numeric currentgraphictext ; currentgraphictext := 0 ;
+
+def data_mpo_file = job_name & "-mpgraph.mpo" enddef ;
+def data_mpy_file = job_name & "-mpgraph.mpy" enddef ;
+
+def begingraphictextfig (expr n) =
+ foundpicture := n ;
+ scratchpicture := nullpicture ;
+enddef ;
+
+def endgraphictextfig =
+ if foundpicture = currentgraphictext :
+ expandafter endinput
+ else :
+ scratchpicture := nullpicture ;
+ fi ;
+enddef ;
+
+def loadfigure primary filename =
+ doloadfigure (filename)
+enddef ;
+
+def doloadfigure (expr filename) text figureattributes =
+ begingroup ;
+ save figurenumber, figurepicture, number, fixedplace ;
+ numeric figurenumber ; figurenumber := 0 ;
+ boolean figureshift ; figureshift := true ;
+ picture figurepicture ; figurepicture := currentpicture ;
+ def number primary n = hide(figurenumber := n) enddef ;
+ def fixedplace = hide(figureshift := false) enddef ;
+ protectgraphicmacros ;
+ % defaults
+ interim linecap := rounded ;
+ interim linejoin := rounded ;
+ interim miterlimit := 10 ;
+ %
+ currentpicture := nullpicture ;
+ draw fullcircle figureattributes ; % expand number
+ currentpicture := nullpicture ;
+ def beginfig (expr n) =
+ currentpicture := nullpicture ;
+ if (figurenumber=n) or (figurenumber=0) :
+ let endfig = endinput ;
+ fi ;
+ enddef ;
+ let endfig = relax ;
+ readfile(filename) ;
+ if figureshift :
+ currentpicture := currentpicture shifted -llcorner currentpicture ;
+ fi ;
+ addto figurepicture also currentpicture figureattributes ;
+ currentpicture := figurepicture ;
+ endgroup ;
+enddef ;
+
+def graphictext primary t =
+ hide (
+ if mfun_trial_run :
+ let mfun_graphic_text = mfun_no_graphic_text ;
+ else :
+ let mfun_graphic_text = mfun_do_graphic_text ;
+ fi
+ )
+ mfun_graphic_text(t)
+enddef ;
+
+def mfun_do_graphic_text (expr t) =
+ % withprescript "gt_stage=final"
+ begingroup ;
+ save figurepicture ; picture figurepicture ;
+ figurepicture := currentpicture ; currentpicture := nullpicture ;
+ currentgraphictext := currentgraphictext + 1 ;
+ mfun_finish_graphic_text % picks up directives
+enddef ;
+
+def mfun_no_graphic_text (expr t) text rest =
+ draw unitsquare withprescript "gt_stage=trial" withpostscript t
+enddef ;
+
+def mfun_finish_graphic_text text x_op_x =
+ protectgraphicmacros ; % resets currentpicture
+ interim linecap := butt ; % normally rounded
+ interim linejoin := mitered ; % normally rounded
+ interim miterlimit := 10 ; % todo
+ let normalwithshade = withshade ;
+ save foundpicture, scratchpicture, str ;
+ save fill, draw, withshade, reversefill, outlinefill ;
+ save withfillcolor, withdrawcolor ; % quite important
+ numeric foundpicture ; picture scratchpicture ; string str ;
+ def draw expr p =
+ % the first, naive implementation was:
+ % addto scratchpicture doublepath p withpen currentpen ;
+ % but it is better to turn lines into fills
+ addto scratchpicture contour boundingbox
+ image (addto currentpicture doublepath p withpen currentpen) ;
+ enddef ;
+ def fill expr p =
+ addto scratchpicture contour p withpen currentpen ;
+ enddef ;
+ def f_op_f = enddef ; boolean f_color ; f_color := false ;
+ def d_op_d = enddef ; boolean d_color ; d_color := false ;
+ def s_op_s = enddef ; boolean s_color ; s_color := false ;
+ boolean reverse_fill ; reverse_fill := false ;
+ boolean outline_fill ; outline_fill := false ;
+ def reversefill =
+ hide(reverse_fill := true )
+ enddef ;
+ def outlinefill =
+ hide(outline_fill := true )
+ enddef ;
+ def withshade primary c =
+ hide(def s_op_s = normalwithshade c enddef ; s_color := true )
+ enddef ;
+ def withfillcolor primary c =
+ hide(def f_op_f = withcolor c enddef ; f_color := true )
+ enddef ;
+ def withdrawcolor primary c =
+ hide(def d_op_d = withcolor c enddef ; d_color := true )
+ enddef ;
+ scratchpicture := nullpicture ;
+ addto scratchpicture doublepath origin x_op_x ; % pre-roll
+ for i within scratchpicture : % Below here is a dirty tricky test!
+ if (urcorner dashpart i) = origin :
+ outline_fill := false ;
+ fi ;
+ endfor ;
+ scratchpicture := nullpicture ;
+ readfile(data_mpy_file) ;
+ scratchpicture := (scratchpicture shifted -llcorner scratchpicture) scaled (1/10) ;
+ if not d_color and not f_color :
+ d_color := true ;
+ fi
+ if s_color :
+ d_color := false ;
+ f_color := false ;
+ fi ;
+ currentpicture := figurepicture ;
+ if d_color and not reverse_fill :
+ for i within scratchpicture :
+ if f_color and outline_fill :
+ addto currentpicture doublepath pathpart i _op_ x_op_x f_op_f dashed nullpicture ;
+ fi ;
+ if filled i :
+ addto currentpicture doublepath pathpart i _op_ x_op_x d_op_d ;
+ fi ;
+ endfor ;
+ fi ;
+ if f_color :
+ for i within scratchpicture :
+ if filled i :
+ addto currentpicture contour pathpart i _op_ x_op_x f_op_f withpen pencircle scaled 0 ;
+ fi ;
+ endfor ;
+ fi ;
+ if d_color and reverse_fill :
+ for i within scratchpicture :
+ if filled i :
+ addto currentpicture doublepath pathpart i _op_ x_op_x d_op_d ;
+ fi ;
+ endfor ;
+ fi ;
+ if s_color :
+ for i within scratchpicture :
+ if filled i :
+ addto currentpicture contour pathpart i _op_ x_op_x s_op_s ;
+ fi ;
+ endfor ;
+ else :
+ for i within scratchpicture :
+ if stroked i :
+ addto currentpicture doublepath pathpart i _op_ x_op_x d_op_d ;
+ fi ;
+ endfor ;
+ fi ;
+ endgroup ;
+enddef ;
+
+% example
+%
+% beginfig (1) ;
+% graphictext
+% "\vbox{\hsize10cm \input tufte }"
+% scaled 8
+% withdrawcolor blue
+% withfillcolor red
+% withpen pencircle scaled 2pt ;
+% endfig ;
+%
+% beginfig(1) ;
+% loadfigure "gracht.mp" rotated 20 ;
+% loadfigure "koe.mp" number 1 scaled 2 ;
+% endfig ;
+%
+% end
diff --git a/Master/texmf-dist/metapost/context/base/mp-idea.mpiv b/Master/texmf-dist/metapost/context/base/mp-idea.mpiv
new file mode 100644
index 00000000000..462d9755359
--- /dev/null
+++ b/Master/texmf-dist/metapost/context/base/mp-idea.mpiv
@@ -0,0 +1,30 @@
+% redpart (1,1,0,0) crashes
+
+% let normalredpart = redpart ;
+% let normalgreenpart = greenpart ;
+% let normalbluepart = bluepart ;
+% let normalcyanpart = cyanpart ;
+% let normalmagentapart = magentapart ;
+% let normalyellowpart = yellowpart ;
+% let normalblackpart = blackpart ;
+
+% vardef redpart expr p = if cmykcolor p : 1 - normalcyanpart p elseif rgbcolor p : normalredpart p else : p fi enddef ;
+% vardef greenpart expr p = if cmykcolor p : 1 - normalmagentapart p elseif rgbcolor p : normalgreenpart p else : p fi enddef ;
+% vardef bluepart expr p = if cmykcolor p : 1 - normalyellowpart p elseif rgbcolor p : normalbluepart p else : p fi enddef ;
+% vardef cyanpart expr p = if cmykcolor p : normalcyanpart p elseif rgbcolor p : 1 - normalredpart p else : p fi enddef ;
+% vardef magentapart expr p = if cmykcolor p : normalmagentapart p elseif rgbcolor p : 1 - normalgreenpart p else : p fi enddef ;
+% vardef yellowpart expr p = if cmykcolor p : normalyellowpart p elseif rgbcolor p : 1 - normalbluepart p else : p fi enddef ;
+% vardef blackpart expr p = if cmykcolor p : normalblackpart p elseif rgbcolor p : 0 else : p fi enddef ;
+
+vardef rcomponent expr p = if rgbcolor p : redpart p elseif cmykcolor p : 1 - cyanpart p else : p fi enddef ;
+vardef gcomponent expr p = if rgbcolor p : greenpart p elseif cmykcolor p : 1 - magentapart p else : p fi enddef ;
+vardef bcomponent expr p = if rgbcolor p : bluepart p elseif cmykcolor p : 1 - yellowpart p else : p fi enddef ;
+vardef ccomponent expr p = if cmykcolor p : cyanpart p elseif rgbcolor p : 1 - redpart p else : p fi enddef ;
+vardef mcomponent expr p = if cmykcolor p : magentapart p elseif rgbcolor p : 1 - greenpart p else : p fi enddef ;
+vardef ycomponent expr p = if cmykcolor p : yellowpart p elseif rgbcolor p : 1 - bluepart p else : p fi enddef ;
+vardef bcomponent expr p = if cmykcolor p : blackpart p elseif rgbcolor p : 0 else : p fi enddef ;
+
+vardef somecolor = (1,1,0,0) enddef ;
+
+fill OverlayBox withcolor (rcomponent somecolor,gcomponent somecolor,bcomponent somecolor) ;
+fill OverlayBox withcolor (ccomponent somecolor,mcomponent somecolor,ycomponent somecolor,bcomponent somecolor) ;
diff --git a/Master/texmf-dist/metapost/context/base/mp-mlib.mp b/Master/texmf-dist/metapost/context/base/mp-mlib.mp
deleted file mode 100644
index 6c7115cb7d4..00000000000
--- a/Master/texmf-dist/metapost/context/base/mp-mlib.mp
+++ /dev/null
@@ -1,533 +0,0 @@
-%D \module
-%D [ file=mp-mlib.mp,
-%D version=2008.03.21,
-%D title=\CONTEXT\ \METAPOST\ graphics,
-%D subtitle=plugins,
-%D author=Hans Hagen,
-%D date=\currentdate,
-%D copyright={PRAGMA / Hans Hagen \& Ton Otten}]
-%C
-%C This module is part of the \CONTEXT\ macro||package and is
-%C therefore copyrighted by \PRAGMA. See licen-en.pdf for
-%C details.
-
-if unknown mplib : endinput ; fi ;
-if known context_mlib : endinput ; fi ;
-
-boolean context_mlib ; context_mlib := true ;
-
-%D Color and transparency
-
-newinternal normaltransparent ; normaltransparent := 1 ;
-newinternal multiplytransparent ; multiplytransparent := 2 ;
-newinternal screentransparent ; screentransparent := 3 ;
-newinternal overlaytransparent ; overlaytransparent := 4 ;
-newinternal softlighttransparent ; softlighttransparent := 5 ;
-newinternal hardlighttransparent ; hardlighttransparent := 6 ;
-newinternal colordodgetransparent ; colordodgetransparent := 7 ;
-newinternal colorburntransparent ; colorburntransparent := 8 ;
-newinternal darkentransparent ; darkentransparent := 9 ;
-newinternal lightentransparent ; lightentransparent := 10 ;
-newinternal differencetransparent ; differencetransparent := 11 ;
-newinternal exclusiontransparent ; exclusiontransparent := 12 ;
-
-vardef transparency_alternative_to_number(expr name) =
- if string name :
- if expandafter known scantokens(name & "transparent") :
- scantokens(name & "transparent")
- else :
- 0
- fi
- elseif name < 13 :
- name
- else :
- 0
- fi
-enddef ;
-
-def spotcolor(expr n, v) =
- 1
- withprescript "sp_name=" & n
- withprescript "sp_value=" & v
-enddef ;
-
-def multitonecolor(expr name, fractions, components, value) =
- 1
- withprescript "sp_name=" & name
- withprescript "sp_fractions=" & decimal fractions
- withprescript "sp_components=" & components
- withprescript "sp_value=" & value
-enddef ;
-
-def transparent(expr alternative, transparency)(text c) =
- c
- withprescript "tr_alternative=" & decimal transparency_alternative_to_number(alternative)
- withprescript "tr_transparency=" & decimal transparency
-enddef ;
-
-def withtransparency(expr alternative, transparency) =
- withprescript "tr_alternative=" & decimal transparency_alternative_to_number(alternative)
- withprescript "tr_transparency=" & decimal transparency
-enddef ;
-
-def cmyk(expr c, m, y, k) =
- (c,m,y,k)
-enddef ;
-
-% Texts
-
-numeric _tt_w_[], _tt_h_[], _tt_d_[] ;
-numeric _tt_n_ ; _tt_n_ := 0 ;
-picture _tt_p_ ; _tt_p_ := nullpicture ;
-boolean _trial_run_ ; _trial_run_ := false ;
-
-def resettextexts =
- _tt_n_ := 0 ;
- _tt_p_ := nullpicture ;
-enddef ;
-
-def flushtextexts =
- addto currentpicture also _tt_p_
-enddef ;
-
-extra_endfig := "flushtextexts;" & extra_endfig;
-extra_beginfig := extra_beginfig & "resettextexts;";
-
-% We collect and flush them all, as we can also have temporary textexts
-% that gets never really flushed but are used for calculations. So, we
-% flush twice: once in location in order to pick up e.g. color properties,
-% and once at the end because we need to flush missing ones.
-
-vardef rawtextext(expr str) =
- if str = "" :
- nullpicture
- elseif _trial_run_ :
- _tt_n_ := _tt_n_ + 1 ;
- addto _tt_p_ doublepath unitsquare
- withprescript "tx_number=" & decimal _tt_n_
- withprescript "tx_stage=extra"
- withpostscript str ;
- image (
- addto currentpicture doublepath unitsquare
- withprescript "tx_number=" & decimal _tt_n_
- withprescript "tx_stage=trial"
- withpostscript str
- )
- else :
- _tt_n_ := _tt_n_ + 1 ;
- if known _tt_d_[_tt_n_] :
- image (
- addto currentpicture doublepath unitsquare
- xscaled _tt_w_[_tt_n_]
- yscaled (_tt_h_[_tt_n_] + _tt_d_[_tt_n_])
- withprescript "tx_number=" & decimal _tt_n_
- withprescript "tx_stage=final"
- ; % withpostscript str ;
- ) shifted (0,-_tt_d_[_tt_n_])
- else :
- image (
- addto currentpicture doublepath unitsquare ;
- )
- fi
- fi
-enddef ;
-
-% More text
-
-pair laboff.d, laboff.dlft, laboff.drt ; % new positional suffixes
-pair laboff.origin, laboff.raw ; % graph mess
-
-laboff.d := laboff ; labxf.d := labxf ; labyf.d := labyf ;
-laboff.dlft := laboff.lft ; labxf.dlft := labxf.lft ; labyf.dlft := labyf.lft ;
-laboff.drt := laboff.rt ; labxf.drt := labxf.rt ; labyf.drt := labyf.rt ;
-
-labtype := 0 ; labtype.lft := 1 ; labtype.rt := 2 ;
-labtype.bot := 3 ; labtype.top := 4 ; labtype.ulft := 5 ;
-labtype.urt := 6 ; labtype.llft := 7 ; labtype.lrt := 8 ;
-labtype.d := 10 ; labtype.dlft := 11 ; labtype.drt := 12 ;
-labtype.origin := 0 ; labtype.raw := 0 ;
-
-% laboff.origin = (infinity,infinity) ; labxf.origin := 0 ; labyf.origin := 0 ;
-% laboff.raw = (infinity,infinity) ; labxf.raw := 0 ; labyf.raw := 0 ;
-
-% todo: thelabel.origin("xxxx",origin) (overflows)
-
-laboff.origin = (0,0) ; labxf.origin := 0 ; labyf.origin := 0 ;
-laboff.raw = (0,0) ; labxf.raw := 0 ; labyf.raw := 0 ;
-
-pair laboff.l ; laboff.l = laboff.lft ;
-pair laboff.r ; laboff.r = laboff.rt ;
-pair laboff.b ; laboff.b = laboff.bot ;
-pair laboff.t ; laboff.t = laboff.top ;
-pair laboff.l_t ; laboff.l_t = laboff.ulft ;
-pair laboff.r_t ; laboff.r_t = laboff.urt ;
-pair laboff.l_b ; laboff.l_b = laboff.llft ;
-pair laboff.r_b ; laboff.r_b = laboff.lrt ;
-pair laboff.t_l ; laboff.t_l = laboff.ulft ;
-pair laboff.t_r ; laboff.t_r = laboff.urt ;
-pair laboff.b_l ; laboff.b_l = laboff.llft ;
-pair laboff.b_r ; laboff.b_r = laboff.lrt ;
-
-numeric labxf.l ; labxf.l = labxf.lft ;
-numeric labxf.r ; labxf.r = labxf.rt ;
-numeric labxf.b ; labxf.b = labxf.bot ;
-numeric labxf.t ; labxf.t = labxf.top ;
-numeric labxf.l_t ; labxf.l_t = labxf.ulft ;
-numeric labxf.r_t ; labxf.r_t = labxf.urt ;
-numeric labxf.l_b ; labxf.l_b = labxf.llft ;
-numeric labxf.r_b ; labxf.r_b = labxf.lrt ;
-numeric labxf.t_l ; labxf.t_l = labxf.ulft ;
-numeric labxf.t_r ; labxf.t_r = labxf.urt ;
-numeric labxf.b_l ; labxf.b_l = labxf.llft ;
-numeric labxf.b_r ; labxf.b_r = labxf.lrt ;
-
-numeric labyf.l ; labyf.l = labyf.lft ;
-numeric labyf.r ; labyf.r = labyf.rt ;
-numeric labyf.b ; labyf.b = labyf.bot ;
-numeric labyf.t ; labyf.t = labyf.top ;
-numeric labyf.l_t ; labyf.l_t = labyf.ulft ;
-numeric labyf.r_t ; labyf.r_t = labyf.urt ;
-numeric labyf.l_b ; labyf.l_b = labyf.llft ;
-numeric labyf.r_b ; labyf.r_b = labyf.lrt ;
-numeric labyf.t_l ; labyf.t_l = labyf.ulft ;
-numeric labyf.t_r ; labyf.t_r = labyf.urt ;
-numeric labyf.b_l ; labyf.b_l = labyf.llft ;
-numeric labyf.b_r ; labyf.b_r = labyf.lrt ;
-
-numeric labtype.l ; labtype.l = labtype.lft ;
-numeric labtype.r ; labtype.r = labtype.rt ;
-numeric labtype.b ; labtype.b = labtype.bot ;
-numeric labtype.t ; labtype.t = labtype.top ;
-numeric labtype.l_t ; labtype.l_t = labtype.ulft ;
-numeric labtype.r_t ; labtype.r_t = labtype.urt ;
-numeric labtype.l_b ; labtype.l_b = labtype.llft ;
-numeric labtype.r_b ; labtype.r_b = labtype.lrt ;
-numeric labtype.t_l ; labtype.t_l = labtype.ulft ;
-numeric labtype.t_r ; labtype.t_r = labtype.urt ;
-numeric labtype.b_l ; labtype.b_l = labtype.llft ;
-numeric labtype.b_r ; labtype.b_r = labtype.lrt ;
-
-vardef thetextext@#(expr p,z) = % adapted copy of thelabel@
- if string p :
- thetextext@#(rawtextext(p),z)
- else :
- p
- if (labtype@# >= 10) : shifted (0,ypart center p) fi
- shifted (z + labeloffset*laboff@# - (labxf@#*lrcorner p + labyf@#*ulcorner p + (1-labxf@#-labyf@#)*llcorner p))
- fi
-enddef ;
-
-vardef textext@#(expr txt) =
- interim labeloffset := textextoffset ;
- if string txt :
- thetextext@#(rawtextext(txt),origin)
- else :
- thetextext@#(txt,origin)
- fi
-enddef ;
-
-% \starttext
-% \startMPpage
-% numeric value ; value = 123 ;
-% label.lft(decimal value,origin) ;
-% draw "oeps" infont defaultfont ;
-% \stopMPpage
-% \stoptext
-
-vardef thelabel@#(expr s, z) =
- save p ; picture p ;
- if picture s :
- p = s ;
- else :
- p = textext("\definedfont[" & defaultfont & "]" & s) scaled defaultscale ;
- fi ;
- p shifted (z + labeloffset*laboff@# - (labxf@#*lrcorner p + labyf@#*ulcorner p + (1-labxf@#-labyf@#)*llcorner p))
-enddef;
-
-let normalinfont = infont ;
-
-primarydef str infont name = % very naughty !
- if name = "" :
- textext(str)
- else :
- textext("\definedfont[" & name & "]" & str)
- fi
-enddef ;
-
-% Shades
-
-newinternal shadefactor ; shadefactor := 1 ;
-pair shadeoffset ; shadeoffset := origin ;
-boolean trace_shades ; trace_shades := false ;
-
-def set_linear_vector (suffix a,b)(expr p,n) =
- if (n=1) : a := llcorner p ; b := urcorner p ;
- elseif (n=2) : a := lrcorner p ; b := ulcorner p ;
- elseif (n=3) : a := urcorner p ; b := llcorner p ;
- elseif (n=4) : a := ulcorner p ; b := lrcorner p ;
- elseif (n=5) : a := .5[ulcorner p,llcorner p] ; b := .5[urcorner p,lrcorner p] ;
- elseif (n=6) : a := .5[llcorner p,lrcorner p] ; b := .5[ulcorner p,urcorner p] ;
- elseif (n=7) : a := .5[lrcorner p,urcorner p] ; b := .5[llcorner p,ulcorner p] ;
- elseif (n=8) : a := .5[urcorner p,ulcorner p] ; b := .5[lrcorner p,llcorner p] ;
- else : a := .5[ulcorner p,llcorner p] ; b := .5[urcorner p,lrcorner p] ;
- fi ;
-enddef ;
-
-def set_circular_vector (suffix ab, r)(expr p,n) =
- if (n=1) : ab := llcorner p ;
- elseif (n=2) : ab := lrcorner p ;
- elseif (n=3) : ab := urcorner p ;
- elseif (n=4) : ab := ulcorner p ;
- else : ab := center p ; r := .5r ;
- fi ;
-enddef ;
-
-def circular_shade (expr p, n, ca, cb) =
- begingroup ;
- save ab, r ; pair ab ; numeric r ;
- r := (xpart lrcorner p - xpart llcorner p) ++ (ypart urcorner p - ypart lrcorner p) ;
- set_circular_vector(ab,r)(p,n) ;
- fill p withcircularshade(ab,ab,0,r,ca,cb) ;
- if trace_shades :
- drawarrow ab -- ab shifted (0,r) withpen pencircle scaled 1pt withcolor .5white ;
- fi ;
- endgroup ;
-enddef ;
-
-def linear_shade (expr p, n, ca, cb) =
- begingroup ;
- save a, b, sh ; pair a, b ;
- set_linear_vector(a,b)(p,n) ;
- fill p withlinearshade(a,b,ca,cb) ;
- if trace_shades :
- drawarrow a -- b withpen pencircle scaled 1pt withcolor .5white ;
- fi ;
- endgroup ;
-enddef ;
-
-def withcircularshade (expr a, b, ra, rb, ca, cb) =
- withprescript "sh_type=circular"
- withprescript "sh_domain=0 1"
- withprescript "sh_factor=" & decimal shadefactor
- withprescript "sh_color_a=" & colordecimals ca
- withprescript "sh_color_b=" & colordecimals cb
- withprescript "sh_center_a=" & ddecimal (a shifted shadeoffset)
- withprescript "sh_center_b=" & ddecimal (b shifted shadeoffset)
- withprescript "sh_radius_a=" & decimal ra
- withprescript "sh_radius_b=" & decimal rb
-enddef ;
-
-def withlinearshade (expr a, b, ca, cb) =
- withprescript "sh_type=linear"
- withprescript "sh_domain=0 1"
- withprescript "sh_factor=" & decimal shadefactor
- withprescript "sh_color_a=" & colordecimals ca
- withprescript "sh_color_b=" & colordecimals cb
- withprescript "sh_center_a=" & ddecimal (a shifted shadeoffset)
- withprescript "sh_center_b=" & ddecimal (b shifted shadeoffset)
-enddef ;
-
-string _defined_cs_pre_[] ; numeric _defined_cs_ ; _defined_cs_:= 0 ;
-string prescript_separator ; prescript_separator := char(13) ;
-
-vardef define_circular_shade (expr a, b, ra, rb, ca, cb) =
- _defined_cs_ := _defined_cs_ + 1 ;
- _defined_cs_pre_ [_defined_cs_] := "sh_type=circular"
- & prescript_separator & "sh_domain=0 1"
- & prescript_separator & "sh_factor=" & decimal shadefactor
- & prescript_separator & "sh_color_a=" & colordecimals ca
- & prescript_separator & "sh_color_b=" & colordecimals cb
- & prescript_separator & "sh_center_a=" & ddecimal (a shifted shadeoffset)
- & prescript_separator & "sh_center_b=" & ddecimal (b shifted shadeoffset)
- & prescript_separator & "sh_radius_a=" & decimal ra
- & prescript_separator & "sh_radius_b=" & decimal rb
- ;
- _defined_cs_
-enddef ;
-
-vardef define_linear_shade (expr a, b, ca, cb) =
- _defined_cs_ := _defined_cs_ + 1 ;
- _defined_cs_pre_ [_defined_cs_] := "sh_type=linear"
- & prescript_separator & "sh_domain=0 1"
- & prescript_separator & "sh_factor=" & decimal shadefactor
- & prescript_separator & "sh_color_a=" & colordecimals ca
- & prescript_separator & "sh_color_b=" & colordecimals cb
- & prescript_separator & "sh_center_a=" & ddecimal (a shifted shadeoffset)
- & prescript_separator & "sh_center_b=" & ddecimal (b shifted shadeoffset)
- ;
- _defined_cs_
-enddef ;
-
-primarydef p withshade sc =
- p withprescript _defined_cs_pre_[sc]
-enddef ;
-
-% vardef predefined_linear_shade (expr p, n, ca, cb) =
-% save a, b, sh ; pair a, b ;
-% set_linear_vector(a,b)(p,n) ;
-% define_linear_shade (a,b,ca,cb)
-% enddef ;
-%
-% vardef predefined_circular_shade (expr p, n, ca, cb) =
-% save ab, r ; pair ab ; numeric r ;
-% r := (xpart lrcorner p - xpart llcorner p) ++ (ypart urcorner p - ypart lrcorner p) ;
-% set_circular_vector(ab,r)(p,n) ;
-% define_circular_shade(ab,ab,0,r,ca,cb)
-% enddef ;
-
-% NEW EXPERIMENTAL CODE
-
-def withlinearshading (expr a, b) =
- withprescript "sh_type=linear"
- withprescript "sh_domain=0 1"
- withprescript "sh_factor=" & decimal shadefactor
- withprescript "sh_center_a=" & ddecimal (a shifted shadeoffset)
- withprescript "sh_center_b=" & ddecimal (b shifted shadeoffset)
-enddef ;
-
-def withcircularshading (expr a, b, ra, rb) =
- withprescript "sh_type=circular"
- withprescript "sh_domain=0 1"
- withprescript "sh_factor=" & decimal shadefactor
- withprescript "sh_center_a=" & ddecimal (a shifted shadeoffset)
- withprescript "sh_center_b=" & ddecimal (b shifted shadeoffset)
- withprescript "sh_radius_a=" & decimal ra
- withprescript "sh_radius_b=" & decimal rb
-enddef ;
-
-def withfromshadecolor expr t =
- withprescript "sh_color=into"
- withprescript "sh_color_a=" & colordecimals t
-enddef ;
-
-def withtoshadecolor expr t =
- withprescript "sh_color=into"
- withprescript "sh_color_b=" & colordecimals t
-enddef ;
-
-def withshading (expr how)(text rest) =
- if how = "linear" :
- withlinearshading(rest)
- elseif how = "circular" :
- withcircularshading(rest)
- else :
- % nothing
- fi
-enddef ;
-
-primarydef a shadedinto b =
- 1
- withprescript "sh_color=into"
- withprescript "sh_color_a=" & colordecimals a
- withprescript "sh_color_b=" & colordecimals b
-enddef ;
-
-% END OF NEW
-
-% Graphic text (we will move code here)
-
-def graphictext primary t =
- if _trial_run_ :
- let dographictextindeed = nographictext ;
- else :
- let dographictextindeed = dographictext ;
- fi
- dographictextindeed(t)
-enddef ;
-
-def dographictext (expr t) =
- % withprescript "gt_stage=final"
- begingroup ;
- save figurepicture ; picture figurepicture ;
- figurepicture := currentpicture ; currentpicture := nullpicture ;
- currentgraphictext := currentgraphictext + 1 ;
- dofinishgraphictext
-enddef ;
-
-def nographictext (expr t) text rest =
- draw unitsquare withprescript "gt_stage=trial" withpostscript t
-enddef ;
-
-% def savegraphictext (expr str) =
-% enddef ;
-
-% def erasegraphictextfile =
-% enddef ;
-
-% Layers
-
-def onlayer primary name =
- withprescript "la_name=" & name
-enddef ;
-
-
-% Figures
-
-% def externalfigure primary filename =
-% doexternalfigure (filename)
-% enddef ;
-%
-% def doexternalfigure (expr filename) text transformation =
-% if true : % a bit incompatible esp scaled 1cm now scaled the natural size
-% draw rawtextext("\externalfigure[" & filename & "]") transformation ;
-% else :
-% draw unitsquare transformation withprescript "fg_name=" & filename ;
-% fi ;
-% enddef ;
-
-def withmask primary filename =
- withprescript "fg_mask=" & filename
-enddef ;
-
-def externalfigure primary filename =
- if false :
- rawtextext("\externalfigure[" & filename & "]")
- else :
- image (
- addto currentpicture doublepath unitsquare
- withprescript "fg_name=" & filename ;
- )
-% unitsquare
-% withpen pencircle scaled 0
-% withprescript "fg_name=" & filename
- fi
-enddef ;
-
-def figure primary filename =
- rawtextext("\externalfigure[" & filename & "]")
-enddef ;
-
-% Positions
-
-def register (expr label, width, height, offset) =
- image (
- addto currentpicture doublepath unitsquare xscaled width yscaled height shifted offset
- withprescript "ps_label=" & label ;
- ) ; % no transformations
-enddef ;
-
-% Housekeeping
-
-extra_beginfig := extra_beginfig & "currentgraphictext := 0 ; " ;
-extra_endfig := extra_endfig & "finishsavingdata ; " ;
-extra_endfig := extra_endfig & "resettextexts ; " ;
-
-boolean cmykcolors ; cmykcolors := true ;
-boolean spotcolors ; spotcolors := true ;
-
-% Bonus
-
-vardef verbatim(expr str) =
- ditto & "\detokenize{" & str & "}" & ditto
-enddef ;
-
-% New
-
-def bitmapimage(expr xresolution, yresolution, data) =
- image (
- addto currentpicture doublepath unitsquare
- withprescript "bm_xresolution=" & decimal xresolution
- withprescript "bm_yresolution=" & decimal yresolution
- withpostscript data ;
- )
-enddef ;
diff --git a/Master/texmf-dist/metapost/context/base/mp-mlib.mpiv b/Master/texmf-dist/metapost/context/base/mp-mlib.mpiv
new file mode 100644
index 00000000000..ef3408198f9
--- /dev/null
+++ b/Master/texmf-dist/metapost/context/base/mp-mlib.mpiv
@@ -0,0 +1,616 @@
+%D \module
+%D [ file=mp-mlib.mp,
+%D version=2008.03.21,
+%D title=\CONTEXT\ \METAPOST\ graphics,
+%D subtitle=plugins,
+%D author=Hans Hagen,
+%D date=\currentdate,
+%D copyright={PRAGMA / Hans Hagen \& Ton Otten}]
+%C
+%C This module is part of the \CONTEXT\ macro||package and is
+%C therefore copyrighted by \PRAGMA. See licen-en.pdf for
+%C details.
+
+if unknown mplib : endinput ; fi ;
+if known context_mlib : endinput ; fi ;
+
+boolean context_mlib ; context_mlib := true ;
+
+%D Color and transparency
+%D
+%D Separable:
+
+newinternal normaltransparent ; normaltransparent := 1 ;
+newinternal multiplytransparent ; multiplytransparent := 2 ;
+newinternal screentransparent ; screentransparent := 3 ;
+newinternal overlaytransparent ; overlaytransparent := 4 ;
+newinternal softlighttransparent ; softlighttransparent := 5 ;
+newinternal hardlighttransparent ; hardlighttransparent := 6 ;
+newinternal colordodgetransparent ; colordodgetransparent := 7 ;
+newinternal colorburntransparent ; colorburntransparent := 8 ;
+newinternal darkentransparent ; darkentransparent := 9 ;
+newinternal lightentransparent ; lightentransparent := 10 ;
+newinternal differencetransparent ; differencetransparent := 11 ;
+newinternal exclusiontransparent ; exclusiontransparent := 12 ;
+
+%D Nonseparable:
+
+newinternal huetransparent ; huetransparent := 13 ;
+newinternal saturationtransparent ; saturationtransparent := 14 ;
+newinternal colortransparent ; colortransparent := 15 ;
+newinternal luminositytransparent ; luminositytransparent := 16 ;
+
+vardef transparency_alternative_to_number(expr name) =
+ if string name :
+ if expandafter known scantokens(name & "transparent") :
+ scantokens(name & "transparent")
+ else :
+ 0
+ fi
+ elseif name < 17 :
+ name
+ else :
+ 0
+ fi
+enddef ;
+
+def namedcolor (expr n) =
+ 1
+ withprescript "sp_type=named"
+ withprescript "sp_name=" & n
+enddef ;
+
+def spotcolor(expr n, v) =
+ 1
+ withprescript "sp_type=spot"
+ withprescript "sp_name=" & n
+ withprescript "sp_value=" & v
+enddef ;
+
+def multitonecolor(expr name, fractions, components, value) =
+ 1
+ withprescript "sp_type=multitone"
+ withprescript "sp_name=" & name
+ withprescript "sp_fractions=" & decimal fractions
+ withprescript "sp_components=" & components
+ withprescript "sp_value=" & value
+enddef ;
+
+def transparent(expr alternative, transparency)(text c) =
+ 1 % this permits withcolor x intoshade y
+ withprescript "tr_alternative=" & decimal transparency_alternative_to_number(alternative)
+ withprescript "tr_transparency=" & decimal transparency
+ withcolor c
+enddef ;
+
+def withtransparency(expr alternative, transparency) =
+ withprescript "tr_alternative=" & decimal transparency_alternative_to_number(alternative)
+ withprescript "tr_transparency=" & decimal transparency
+enddef ;
+
+def cmyk(expr c, m, y, k) = % provided for downward compability
+ (c,m,y,k)
+enddef ;
+
+% Texts (todo: better strut ratio, now .7 hardcoded, should be passed)
+
+newinternal textextoffset ; textextoffset := 0 ;
+
+numeric mfun_tt_w[], mfun_tt_h[], mfun_tt_d[] ; % we can consider using colors (less hash space)
+numeric mfun_tt_n ; mfun_tt_n := 0 ;
+picture mfun_tt_p ; mfun_tt_p := nullpicture ;
+boolean mfun_trial_run ; mfun_trial_run := false ;
+
+def mfun_reset_tex_texts =
+ mfun_tt_n := 0 ;
+ mfun_tt_p := nullpicture ;
+enddef ;
+
+def mfun_flush_tex_texts =
+ addto currentpicture also mfun_tt_p
+enddef ;
+
+extra_endfig := "mfun_flush_tex_texts;" & extra_endfig;
+extra_beginfig := extra_beginfig & "mfun_reset_tex_texts;";
+
+% We collect and flush them all, as we can also have temporary textexts
+% that gets never really flushed but are used for calculations. So, we
+% flush twice: once in location in order to pick up e.g. color properties,
+% and once at the end because we need to flush missing ones.
+
+vardef rawtextext(expr str) =
+ if str = "" :
+ nullpicture
+ elseif mfun_trial_run :
+ mfun_tt_n := mfun_tt_n + 1 ;
+ addto mfun_tt_p doublepath unitsquare
+ withprescript "tx_number=" & decimal mfun_tt_n
+ withprescript "tx_stage=extra"
+ withpostscript str ;
+ image (
+ addto currentpicture doublepath unitsquare
+ withprescript "tx_number=" & decimal mfun_tt_n
+ withprescript "tx_stage=trial"
+ withpostscript str
+ )
+ else :
+ mfun_tt_n := mfun_tt_n + 1 ;
+ if known mfun_tt_d[mfun_tt_n] :
+ image (
+ addto currentpicture doublepath unitsquare
+ xscaled mfun_tt_w[mfun_tt_n]
+ yscaled (mfun_tt_h[mfun_tt_n] + mfun_tt_d[mfun_tt_n])
+ withprescript "tx_number=" & decimal mfun_tt_n
+ withprescript "tx_stage=final"
+ ; % withpostscript str ;
+ ) shifted (0,-mfun_tt_d[mfun_tt_n])
+ else :
+ image (
+ addto currentpicture doublepath unitsquare ;
+ )
+ fi
+ fi
+enddef ;
+
+% More text
+
+defaultfont := "Mono" ; % was cmr10, could be lmmono10-regular, but is fed into context anyway
+
+vardef fontsize expr name =
+ save size ; numeric size ;
+ size := bbwidth(textext("\MPfontsizehskip{" & name & "}")) ;
+ if size = 0 :
+ 12pt
+ else :
+ size
+ fi
+enddef ;
+
+pair mfun_laboff ; mfun_laboff := (0,0) ;
+pair mfun_laboff.lft ; mfun_laboff.lft := (-1,0) ;
+pair mfun_laboff.rt ; mfun_laboff.rt := (1,0) ;
+pair mfun_laboff.bot ; mfun_laboff.bot := (0,-1) ;
+pair mfun_laboff.top ; mfun_laboff.top := (0,1) ;
+pair mfun_laboff.ulft ; mfun_laboff.ulft := (-.7,.7) ;
+pair mfun_laboff.urt ; mfun_laboff.urt := (.7,.7) ;
+pair mfun_laboff.llft ; mfun_laboff.llft := -(.7,.7) ;
+pair mfun_laboff.lrt ; mfun_laboff.lrt := (.7,-.7) ;
+
+pair mfun_laboff.d ; mfun_laboff.d := mfun_laboff ;
+pair mfun_laboff.dlft ; mfun_laboff.dlft := mfun_laboff.lft ;
+pair mfun_laboff.drt ; mfun_laboff.drt := mfun_laboff.rt ;
+pair mfun_laboff.origin ; mfun_laboff.origin := origin ;
+pair mfun_laboff.raw ; mfun_laboff.raw := origin ;
+
+pair mfun_laboff.l ; mfun_laboff.l := mfun_laboff.lft ;
+pair mfun_laboff.r ; mfun_laboff.r := mfun_laboff.rt ;
+pair mfun_laboff.b ; mfun_laboff.b := mfun_laboff.bot ;
+pair mfun_laboff.t ; mfun_laboff.t := mfun_laboff.top ;
+pair mfun_laboff.l_t ; mfun_laboff.l_t := mfun_laboff.ulft ;
+pair mfun_laboff.r_t ; mfun_laboff.r_t := mfun_laboff.urt ;
+pair mfun_laboff.l_b ; mfun_laboff.l_b := mfun_laboff.llft ;
+pair mfun_laboff.r_b ; mfun_laboff.r_b := mfun_laboff.lrt ;
+pair mfun_laboff.t_l ; mfun_laboff.t_l := mfun_laboff.ulft ;
+pair mfun_laboff.t_r ; mfun_laboff.t_r := mfun_laboff.urt ;
+pair mfun_laboff.b_l ; mfun_laboff.b_l := mfun_laboff.llft ;
+pair mfun_laboff.b_r ; mfun_laboff.b_r := mfun_laboff.lrt ;
+
+mfun_labxf := 0.5 ;
+mfun_labxf.lft := mfun_labxf.l := 1 ;
+mfun_labxf.rt := mfun_labxf.r := 0 ;
+mfun_labxf.bot := mfun_labxf.b := 0.5 ;
+mfun_labxf.top := mfun_labxf.t := 0.5 ;
+mfun_labxf.ulft := mfun_labxf.l_t := mfun_labxf.t_l := 1 ;
+mfun_labxf.urt := mfun_labxf.r_t := mfun_labxf.t_r := 0 ;
+mfun_labxf.llft := mfun_labxf.l_b := mfun_labxf.b_l := 1 ;
+mfun_labxf.lrt := mfun_labxf.r_b := mfun_labxf.b_r := 0 ;
+
+mfun_labxf.d := mfun_labxf ;
+mfun_labxf.dlft := mfun_labxf.lft ;
+mfun_labxf.drt := mfun_labxf.rt ;
+mfun_labxf.origin := 0 ;
+mfun_labxf.raw := 0 ;
+
+mfun_labyf := 0.5 ;
+mfun_labyf.lft := mfun_labyf.l := 0.5 ;
+mfun_labyf.rt := mfun_labyf.r := 0.5 ;
+mfun_labyf.bot := mfun_labyf.b := 1 ;
+mfun_labyf.top := mfun_labyf.t := 0 ;
+mfun_labyf.ulft := mfun_labyf.l_t := mfun_labyf.t_l := 0 ;
+mfun_labyf.urt := mfun_labyf.r_t := mfun_labyf.t_r := 0 ;
+mfun_labyf.llft := mfun_labyf.l_b := mfun_labyf.b_l := 1 ;
+mfun_labyf.lrt := mfun_labyf.r_b := mfun_labyf.b_r := 1 ;
+
+mfun_labyf.d := mfun_labyf ;
+mfun_labyf.dlft := mfun_labyf.lft ;
+mfun_labyf.drt := mfun_labyf.rt ;
+mfun_labyf.origin := 0 ;
+mfun_labyf.raw := 0 ;
+
+mfun_labtype := 0 ;
+mfun_labtype.lft := mfun_labtype.l := 1 ;
+mfun_labtype.rt := mfun_labtype.r := 2 ;
+mfun_labtype.bot := mfun_labtype.b := 3 ;
+mfun_labtype.top := mfun_labtype.t := 4 ;
+mfun_labtype.ulft := mfun_labtype.l_t := mfun_labtype.t_l := 5 ;
+mfun_labtype.urt := mfun_labtype.r_t := mfun_labtype.t_r := 6 ;
+mfun_labtype.llft := mfun_labtype.l_b := mfun_labtype.b_l := 7 ;
+mfun_labtype.lrt := mfun_labtype.r_b := mfun_labtype.b_r := 8 ;
+mfun_labtype.d := 10 ;
+mfun_labtype.dlft := 11 ;
+mfun_labtype.drt := 12 ;
+mfun_labtype.origin := 0 ;
+mfun_labtype.raw := 0 ;
+
+vardef thetextext@#(expr p,z) =
+ % interim labeloffset := textextoffset ;
+ if string p :
+ thetextext@#(rawtextext(p),z)
+ else :
+ p
+ if (mfun_labtype@# >= 10) :
+ shifted (0,ypart center p)
+ fi
+ shifted (z + textextoffset*mfun_laboff@# - (mfun_labxf@#*lrcorner p + mfun_labyf@#*ulcorner p + (1-mfun_labxf@#-mfun_labyf@#)*llcorner p))
+ fi
+enddef ;
+
+vardef textext@#(expr p) = % no draw hers
+ thetextext@#(p,origin)
+enddef ;
+
+vardef thelabel@#(expr p,z) =
+ if string p :
+ thelabel@#(rawtextext("\definedfont[" & defaultfont & "]" & p) scaled defaultscale,z)
+ else :
+ p shifted (z + labeloffset*mfun_laboff@# - (mfun_labxf@#*lrcorner p + mfun_labyf@#*ulcorner p + (1-mfun_labxf@#-mfun_labyf@#)*llcorner p))
+ fi
+enddef;
+
+def label = % takes two arguments, contrary to textext that takes one
+ draw thelabel
+enddef ;
+
+vardef anchored@#(expr p, z) = % beware: no "+ mfun_laboff@#" here (never!)
+ p
+ if (mfun_labtype@# >= 10) :
+ shifted (0,ypart center p)
+ fi
+ shifted (z + (mfun_labxf@#*lrcorner p + mfun_labyf@#*ulcorner p + (1-mfun_labxf@#-mfun_labyf@#)*llcorner p))
+enddef ;
+
+let normalinfont = infont ;
+
+primarydef str infont name = % nasty hack
+ if name = "" :
+ textext(str)
+ else :
+ textext("\definedfont[" & name & "]" & str)
+ fi
+enddef ;
+
+% Shades
+
+newinternal shadefactor ; shadefactor := 1 ;
+pair shadeoffset ; shadeoffset := origin ;
+boolean trace_shades ; trace_shades := false ;
+
+def set_linear_vector (suffix a,b)(expr p,n) =
+ if (n=1) : a := llcorner p ; b := urcorner p ;
+ elseif (n=2) : a := lrcorner p ; b := ulcorner p ;
+ elseif (n=3) : a := urcorner p ; b := llcorner p ;
+ elseif (n=4) : a := ulcorner p ; b := lrcorner p ;
+ elseif (n=5) : a := .5[ulcorner p,llcorner p] ; b := .5[urcorner p,lrcorner p] ;
+ elseif (n=6) : a := .5[llcorner p,lrcorner p] ; b := .5[ulcorner p,urcorner p] ;
+ elseif (n=7) : a := .5[lrcorner p,urcorner p] ; b := .5[llcorner p,ulcorner p] ;
+ elseif (n=8) : a := .5[urcorner p,ulcorner p] ; b := .5[lrcorner p,llcorner p] ;
+ else : a := .5[ulcorner p,llcorner p] ; b := .5[urcorner p,lrcorner p] ;
+ fi ;
+enddef ;
+
+def set_circular_vector (suffix ab, r)(expr p,n) =
+ if (n=1) : ab := llcorner p ;
+ elseif (n=2) : ab := lrcorner p ;
+ elseif (n=3) : ab := urcorner p ;
+ elseif (n=4) : ab := ulcorner p ;
+ else : ab := center p ; r := .5r ;
+ fi ;
+enddef ;
+
+def circular_shade (expr p, n, ca, cb) =
+ begingroup ;
+ save ab, r ; pair ab ; numeric r ;
+ r := (xpart lrcorner p - xpart llcorner p) ++ (ypart urcorner p - ypart lrcorner p) ;
+ set_circular_vector(ab,r)(p,n) ;
+ fill p withcircularshade(ab,ab,0,r,ca,cb) ;
+ if trace_shades :
+ drawarrow ab -- ab shifted (0,r) withpen pencircle scaled 1pt withcolor .5white ;
+ fi ;
+ endgroup ;
+enddef ;
+
+def linear_shade (expr p, n, ca, cb) =
+ begingroup ;
+ save a, b, sh ; pair a, b ;
+ set_linear_vector(a,b)(p,n) ;
+ fill p withlinearshade(a,b,ca,cb) ;
+ if trace_shades :
+ drawarrow a -- b withpen pencircle scaled 1pt withcolor .5white ;
+ fi ;
+ endgroup ;
+enddef ;
+
+def withcircularshade (expr a, b, ra, rb, ca, cb) =
+ withprescript "sh_type=circular"
+ withprescript "sh_domain=0 1"
+ withprescript "sh_factor=" & decimal shadefactor
+ withprescript "sh_color_a=" & colordecimals ca
+ withprescript "sh_color_b=" & colordecimals cb
+ withprescript "sh_center_a=" & ddecimal (a shifted shadeoffset)
+ withprescript "sh_center_b=" & ddecimal (b shifted shadeoffset)
+ withprescript "sh_radius_a=" & decimal ra
+ withprescript "sh_radius_b=" & decimal rb
+enddef ;
+
+def withlinearshade (expr a, b, ca, cb) =
+ withprescript "sh_type=linear"
+ withprescript "sh_domain=0 1"
+ withprescript "sh_factor=" & decimal shadefactor
+ withprescript "sh_color_a=" & colordecimals ca
+ withprescript "sh_color_b=" & colordecimals cb
+ withprescript "sh_center_a=" & ddecimal (a shifted shadeoffset)
+ withprescript "sh_center_b=" & ddecimal (b shifted shadeoffset)
+enddef ;
+
+string mfun_defined_cs_pre[] ; numeric mfun_defined_cs ; mfun_defined_cs := 0 ;
+
+string mfun_prescript_separator ; mfun_prescript_separator := char(13) ;
+
+vardef define_circular_shade (expr a, b, ra, rb, ca, cb) =
+ mfun_defined_cs := mfun_defined_cs + 1 ;
+ mfun_defined_cs_pre[mfun_defined_cs] := "sh_type=circular"
+ & mfun_prescript_separator & "sh_domain=0 1"
+ & mfun_prescript_separator & "sh_factor=" & decimal shadefactor
+ & mfun_prescript_separator & "sh_color_a=" & colordecimals ca
+ & mfun_prescript_separator & "sh_color_b=" & colordecimals cb
+ & mfun_prescript_separator & "sh_center_a=" & ddecimal (a shifted shadeoffset)
+ & mfun_prescript_separator & "sh_center_b=" & ddecimal (b shifted shadeoffset)
+ & mfun_prescript_separator & "sh_radius_a=" & decimal ra
+ & mfun_prescript_separator & "sh_radius_b=" & decimal rb
+ ;
+ mfun_defined_cs
+enddef ;
+
+vardef define_linear_shade (expr a, b, ca, cb) =
+ mfun_defined_cs := mfun_defined_cs + 1 ;
+ mfun_defined_cs_pre[mfun_defined_cs] := "sh_type=linear"
+ & mfun_prescript_separator & "sh_domain=0 1"
+ & mfun_prescript_separator & "sh_factor=" & decimal shadefactor
+ & mfun_prescript_separator & "sh_color_a=" & colordecimals ca
+ & mfun_prescript_separator & "sh_color_b=" & colordecimals cb
+ & mfun_prescript_separator & "sh_center_a=" & ddecimal (a shifted shadeoffset)
+ & mfun_prescript_separator & "sh_center_b=" & ddecimal (b shifted shadeoffset)
+ ;
+ mfun_defined_cs
+enddef ;
+
+primarydef p withshade sc =
+ p withprescript mfun_defined_cs_pre[sc]
+enddef ;
+
+
+vardef define_sampled_linear_shade(expr a,b,n)(text t) =
+ mfun_defined_cs := mfun_defined_cs + 1 ;
+ mfun_defined_cs_pre[mfun_defined_cs] := "ssh_type=linear"
+ & mfun_prescript_separator & "ssh_center_a=" & ddecimal (a shifted shadeoffset)
+ & mfun_prescript_separator & "ssh_center_b=" & ddecimal (b shifted shadeoffset)
+ & mfun_prescript_separator & "ssh_nofcolors=" & decimal n
+ & mfun_prescript_separator & "ssh_domain=" & domstr
+ & mfun_prescript_separator & "ssh_extend=" & extstr
+ & mfun_prescript_separator & "ssh_colors=" & colstr
+ & mfun_prescript_separator & "ssh_bounds=" & bndstr
+ & mfun_prescript_separator & "ssh_ranges=" & ranstr
+ ;
+ mfun_defined_cs
+enddef ;
+
+vardef define_sampled_circular_shade(expr a,b,ra,rb,n)(text t) =
+ mfun_defined_cs := mfun_defined_cs + 1 ;
+ mfun_defined_cs_pre[mfun_defined_cs] := "ssh_type=circular"
+ & mfun_prescript_separator & "ssh_center_a=" & ddecimal (a shifted shadeoffset)
+ & mfun_prescript_separator & "ssh_radius_a=" & decimal ra
+ & mfun_prescript_separator & "ssh_center_b=" & ddecimal (b shifted shadeoffset)
+ & mfun_prescript_separator & "ssh_radius_b=" & decimal rb
+ & mfun_prescript_separator & "ssh_nofcolors=" & decimal n
+ & mfun_prescript_separator & "ssh_domain=" & domstr
+ & mfun_prescript_separator & "ssh_extend=" & extstr
+ & mfun_prescript_separator & "ssh_colors=" & colstr
+ & mfun_prescript_separator & "ssh_bounds=" & bndstr
+ & mfun_prescript_separator & "ssh_ranges=" & ranstr
+ ;
+ mfun_defined_cs
+enddef ;
+
+% vardef predefined_linear_shade (expr p, n, ca, cb) =
+% save a, b, sh ; pair a, b ;
+% set_linear_vector(a,b)(p,n) ;
+% define_linear_shade (a,b,ca,cb)
+% enddef ;
+%
+% vardef predefined_circular_shade (expr p, n, ca, cb) =
+% save ab, r ; pair ab ; numeric r ;
+% r := (xpart lrcorner p - xpart llcorner p) ++ (ypart urcorner p - ypart lrcorner p) ;
+% set_circular_vector(ab,r)(p,n) ;
+% define_circular_shade(ab,ab,0,r,ca,cb)
+% enddef ;
+
+% NEW EXPERIMENTAL CODE
+
+def withlinearshading (expr a, b) =
+ withprescript "sh_type=linear"
+ withprescript "sh_domain=0 1"
+ withprescript "sh_factor=" & decimal shadefactor
+ withprescript "sh_center_a=" & ddecimal (a shifted shadeoffset)
+ withprescript "sh_center_b=" & ddecimal (b shifted shadeoffset)
+enddef ;
+
+def withcircularshading (expr a, b, ra, rb) =
+ withprescript "sh_type=circular"
+ withprescript "sh_domain=0 1"
+ withprescript "sh_factor=" & decimal shadefactor
+ withprescript "sh_center_a=" & ddecimal (a shifted shadeoffset)
+ withprescript "sh_center_b=" & ddecimal (b shifted shadeoffset)
+ withprescript "sh_radius_a=" & decimal ra
+ withprescript "sh_radius_b=" & decimal rb
+enddef ;
+
+def withfromshadecolor expr t =
+ withprescript "sh_color=into"
+ withprescript "sh_color_a=" & colordecimals t
+enddef ;
+
+def withtoshadecolor expr t =
+ withprescript "sh_color=into"
+ withprescript "sh_color_b=" & colordecimals t
+enddef ;
+
+def withshading (expr how)(text rest) =
+ if how = "linear" :
+ withlinearshading(rest)
+ elseif how = "circular" :
+ withcircularshading(rest)
+ else :
+ % nothing
+ fi
+enddef ;
+
+primarydef a shadedinto b =
+ 1 % does not work with transparency
+ withprescript "sh_color=into"
+ withprescript "sh_color_a=" & colordecimals a
+ withprescript "sh_color_b=" & colordecimals b
+enddef ;
+
+% Layers
+
+def onlayer primary name =
+ withprescript "la_name=" & name
+enddef ;
+
+% Figures
+
+% def externalfigure primary filename =
+% doexternalfigure (filename)
+% enddef ;
+%
+% def doexternalfigure (expr filename) text transformation =
+% if true : % a bit incompatible esp scaled 1cm now scaled the natural size
+% draw rawtextext("\externalfigure[" & filename & "]") transformation ;
+% else :
+% draw unitsquare transformation withprescript "fg_name=" & filename ;
+% fi ;
+% enddef ;
+
+def withmask primary filename =
+ withprescript "fg_mask=" & filename
+enddef ;
+
+def externalfigure primary filename =
+ if false :
+ rawtextext("\externalfigure[" & filename & "]")
+ else :
+ image (
+ addto currentpicture doublepath unitsquare
+ withprescript "fg_name=" & filename ;
+ )
+% unitsquare
+% withpen pencircle scaled 0
+% withprescript "fg_name=" & filename
+ fi
+enddef ;
+
+def figure primary filename =
+ rawtextext("\externalfigure[" & filename & "]")
+enddef ;
+
+% Positions
+
+def register (expr label, width, height, offset) =
+% draw image (
+ addto currentpicture doublepath unitsquare xscaled width yscaled height shifted offset
+ withprescript "ps_label=" & label ;
+% ) ; % no transformations
+enddef ;
+
+% Housekeeping
+
+extra_beginfig := extra_beginfig & "currentgraphictext := 0 ; " ;
+extra_endfig := extra_endfig & "finishsavingdata ; " ;
+extra_endfig := extra_endfig & "mfun_reset_tex_texts ; " ;
+
+% Bonus
+
+vardef verbatim(expr str) =
+ ditto & "\detokenize{" & str & "}" & ditto
+enddef ;
+
+% New
+
+def bitmapimage(expr xresolution, yresolution, data) =
+ image (
+ addto currentpicture doublepath unitsquare
+ withprescript "bm_xresolution=" & decimal xresolution
+ withprescript "bm_yresolution=" & decimal yresolution
+ withpostscript data ;
+ )
+enddef ;
+
+% TODO:
+
+let property = picture ;
+
+vardef properties(text t) =
+ image(draw unitcircle t)
+enddef ;
+
+def withproperties expr p =
+ if colormodel p = 3 :
+ withcolor greypart p
+ elseif colormodel p = 5 :
+ withcolor (redpart p,greenpart p,bluepart p)
+ elseif colormodel p = 7 :
+ withcolor (cyanpart p,magentapart p,yellowpart p,blackpart p)
+ fi
+ % todo, when available in mp:
+ %
+ % withprescript prescript p
+ % withpostscript postscript p
+ %
+ % todo, penpart
+enddef ;
+
+% property p ; p = properties(withcolor (1,1,0,1)) ;
+% fill fullcircle scaled 20cm withproperties p ;
+
+% Experimental:
+
+primarydef t asgroup s = % s = isolated|knockout
+ begingroup
+ save grouppicture, wrappedpicture, groupbounds ;
+ picture grouppicture, wrappedpicture ; path groupbounds ;
+ grouppicture := if picture t : t else : image(draw t) fi ;
+ groupbounds := boundingbox grouppicture ;
+ wrappedpicture:= nullpicture ;
+ addto wrappedpicture contour groupbounds
+ withprescript "gr_state=start"
+ withprescript "gr_type=" & s
+ withprescript "gr_llx=" & decimal xpart llcorner groupbounds
+ withprescript "gr_lly=" & decimal ypart llcorner groupbounds
+ withprescript "gr_urx=" & decimal xpart urcorner groupbounds
+ withprescript "gr_ury=" & decimal ypart urcorner groupbounds ;
+ addto wrappedpicture also grouppicture ;
+ addto wrappedpicture contour groupbounds
+ withprescript "gr_state=stop" ;
+ wrappedpicture
+ endgroup
+enddef ;
diff --git a/Master/texmf-dist/metapost/context/base/mp-page.mp b/Master/texmf-dist/metapost/context/base/mp-page.mpii
index 59d8bccbcd7..c7542a5f989 100644
--- a/Master/texmf-dist/metapost/context/base/mp-page.mp
+++ b/Master/texmf-dist/metapost/context/base/mp-page.mpii
@@ -14,8 +14,7 @@
%D This module is rather preliminary and subjected to
%D changes.
-if unknown context_tool : input mp-tool ; fi ;
-if known context_page : endinput ; fi ;
+if known context_page : endinput ; fi ;
boolean context_page ; context_page := true ;
@@ -402,6 +401,8 @@ enddef ;
def StartPage =
+ begingroup ;
+
if PageStateAvailable :
LoadPageState ;
SwapPageState ;
@@ -416,6 +417,8 @@ def StopPage =
BoundPageAreas ;
+ endgroup ;
+
enddef ;
def OverlayBox =
@@ -475,4 +478,182 @@ def position_anchor_bar(expr p_b_self, p_e_self, y_b_self, y_e_self, h_b_self, d
StopPage ;
enddef ;
-endinput ;
+% Crop stuff
+
+vardef crop_marks_lines (expr box, length, offset, nx, ny) =
+ save p ; picture p ; save w, h, x, y ; numeric w, h, x, y ;
+ p := image (
+ x := if nx = 0 : 1 else : nx - 1 fi ;
+ y := if ny = 0 : 1 else : ny - 1 fi ;
+ w := bbwidth (box) / x ;
+ h := bbheight(box) / y ;
+ for i=0 upto y :
+ draw ((llcorner box) -- (llcorner box) shifted (-length,0)) shifted (-offset,i*h) ;
+ draw ((lrcorner box) -- (lrcorner box) shifted ( length,0)) shifted ( offset,i*h) ;
+ endfor ;
+ for i=0 upto x :
+ draw ((llcorner box) -- (llcorner box) shifted (0,-length)) shifted (i*w,-offset) ;
+ draw ((ulcorner box) -- (ulcorner box) shifted (0, length)) shifted (i*w, offset) ;
+ endfor ;
+ ) ;
+ setbounds p to box ;
+ p
+enddef ;
+
+vardef crop_marks_cmyk =
+ save p ; picture p ; p := image (
+ fill ulcircle scaled 12.5 withcolor (1,0,0,0) ;
+ fill urcircle scaled 12.5 withcolor (0,1,0,0) ;
+ fill lrcircle scaled 12.5 withcolor (0,0,1,0) ;
+ fill llcircle scaled 12.5 withcolor (0,0,0,1) ;
+ draw (-10,0) -- (10,0) ;
+ draw (0,-10) -- (0,10) ;
+ draw fullcircle scaled 12.5 ;
+ ) ;
+ setbounds p to fullsquare scaled 20 ;
+ p
+enddef ;
+
+vardef crop_marks_gray =
+ save p ; picture p ; p := image (
+ fill ulcircle scaled 12.5 withcolor (0.00) ;
+ fill urcircle scaled 12.5 withcolor (0.25) ;
+ fill lrcircle scaled 12.5 withcolor (0.50) ;
+ fill llcircle scaled 12.5 withcolor (0.75) ;
+ draw (-10,0) -- (10,0) ;
+ draw (0,-10) -- (0,10) ;
+ draw (-6,0) -- (6,0) withcolor white ;
+ draw (0,-6) -- (0,6) withcolor white ;
+ draw fullcircle scaled 12.5 ;
+ ) ;
+ setbounds p to fullsquare scaled 20 ;
+ p
+enddef ;
+
+vardef crop_marks_cmykrgb =
+ save p ; picture p ; p := image (
+ fill ulcircle scaled 15 withcolor (1,0,0) ;
+ fill urcircle scaled 15 withcolor (0,1,0) ;
+ fill lrcircle scaled 15 withcolor (0,0,1) ;
+ fill llcircle scaled 15 withcolor (.5,.5,.5) ;
+ fill ulcircle scaled 10 withcolor (1,0,0,0) ;
+ fill urcircle scaled 10 withcolor (0,1,0,0) ;
+ fill lrcircle scaled 10 withcolor (0,0,1,0) ;
+ fill llcircle scaled 10 withcolor (0,0,0,1) ;
+ draw (-10,0) -- (10,0) ;
+ draw (0,-10) -- (0,10) ;
+ draw fullcircle scaled 10 ;
+ draw fullcircle scaled 15 ;
+ ) ;
+ setbounds p to fullsquare scaled 20 ;
+ p
+enddef ;
+
+vardef crop_color(expr c, h, w, dx, dy, ts) =
+ image (
+ save p ; path p ;
+ for i=1 upto 6 :
+ p := fullsquare
+ xscaled w
+ yscaled h
+ shifted (dx,dy-i*h) ;
+ fill p
+ withcolor (crop_colors[i]*c) ;
+ draw textext("\format{'@0.2f'," & decimal crop_colors[i] & "}")
+ scaled ts
+ shifted center p withcolor white ;
+ endfor ;
+ )
+enddef ;
+
+vardef crop_gray(expr c, h, w, dx, dy, ts) =
+ image (
+ save p ; path p ;
+ for i=.05 step .05 until 1 :
+ p := fullsquare
+ xscaled w
+ yscaled h
+ shifted (20*(i-1)*w+dx,dy) ;
+ fill p
+ withcolor (i*c) ;
+ draw textext("\format{'@0.2f'," & decimal i & "}")
+ scaled ts
+ shifted center p withcolor white ;
+ endfor ;
+ )
+enddef ;
+
+% draw crop_marks_cmyk shifted llcorner more ;
+% draw crop_marks_cmyk shifted lrcorner more ;
+% draw crop_marks_cmyk shifted ulcorner more ;
+% draw crop_marks_cmyk shifted urcorner more ;
+
+def page_marks_add_color(expr width, height, length, offset) = % todo: namespace
+
+ path page ; page := fullsquare xscaled width yscaled height ;
+ path more ; more := page enlarged (offset+length/2,offset+length/2) ;
+
+ numeric crop_colors[] ;
+ crop_colors[1] := 1 ;
+ crop_colors[2] := 0.95 ;
+ crop_colors[3] := 0.75 ;
+ crop_colors[4] := 0.50 ;
+ crop_colors[5] := 0.25 ;
+ crop_colors[6] := 0.05 ;
+
+ numeric h ; h := height / 20 ;
+ numeric w ; w := width / 20 ;
+ numeric d ; d := offset + length/2 ;
+
+ draw crop_color((1,0,0,0),h,length,xpart ulcorner page - d, 10h,length/20) ;
+ draw crop_color((0,1,0,0),h,length,xpart ulcorner page - d,3.5h,length/20) ;
+ draw crop_color((0,0,1,0),h,length,xpart ulcorner page - d, -3h,length/20) ;
+
+ draw crop_color((0,1,1,0),h,length,xpart urcorner page + d, 10h,length/20) ;
+ draw crop_color((1,0,1,0),h,length,xpart urcorner page + d,3.5h,length/20) ;
+ draw crop_color((1,1,0,0),h,length,xpart urcorner page + d, -3h,length/20) ;
+
+ draw crop_gray((0,0,0,1),length, w,-xpart llcorner page,-ypart llcorner page + d ,w/20) ;
+ draw crop_gray((1,0,0,0),length/3,w,-xpart llcorner page, ypart llcorner page - d + 1length/3,w/20) ;
+ draw crop_gray((0,1,0,0),length/3,w,-xpart llcorner page, ypart llcorner page - d - 0length/3,w/20) ;
+ draw crop_gray((0,0,1,0),length/3,w,-xpart llcorner page, ypart llcorner page - d - 1length/3,w/20) ;
+
+ setbounds currentpicture to page ;
+
+enddef ;
+
+def page_marks_add_marking(expr width, height, length, offset) = % todo: namespace
+
+ path page ; page := fullsquare xscaled width yscaled height ;
+ path more ; more := page enlarged (offset+length/2,offset+length/2) ;
+
+ draw crop_marks_gray shifted center(topboundary more) shifted (0, offset+length);
+ draw crop_marks_cmyk shifted center(bottomboundary more) shifted (0,-offset-length);
+
+ setbounds currentpicture to page ;
+
+enddef ;
+
+def page_marks_add_lines(expr width, height, length, offset, nx, ny) = % todo: namespace
+
+ path page ; page := fullsquare xscaled width yscaled height ;
+ path more ; more := page enlarged (offset+length/2,offset+length/2) ;
+
+ draw crop_marks_lines(page,length,offset,nx,ny) ;
+
+ setbounds currentpicture to page ;
+
+enddef ;
+
+def page_marks_add_number(expr width, height, length, offset, n) = % todo: namespace
+
+ path page ; page := fullsquare xscaled width yscaled height ;
+ path more ; more := page enlarged (offset+length/2,offset+length/2) ;
+
+ for s=llcorner more, lrcorner more, ulcorner more, urcorner more :
+ draw textext(decimal n) shifted s ;
+ endfor ;
+
+ setbounds currentpicture to page ;
+
+enddef ;
diff --git a/Master/texmf-dist/metapost/context/base/mp-page.mpiv b/Master/texmf-dist/metapost/context/base/mp-page.mpiv
new file mode 100644
index 00000000000..bb8218be5d3
--- /dev/null
+++ b/Master/texmf-dist/metapost/context/base/mp-page.mpiv
@@ -0,0 +1,322 @@
+%D \module
+%D [ file=mp-page.mp,
+%D version=1999.03.10,
+%D title=\CONTEXT\ \METAPOST\ graphics,
+%D subtitle=page enhancements,
+%D author=Hans Hagen,
+%D date=\currentdate,
+%D copyright={PRAGMA / Hans Hagen \& Ton Otten}]
+%C
+%C This module is part of the \CONTEXT\ macro||package and is
+%C therefore copyrighted by \PRAGMA. See mreadme.pdf for
+%C details.
+
+%D This module is rather preliminary and subjected to
+%D changes.
+
+if known context_page : endinput ; fi ;
+
+boolean context_page ; context_page := true ;
+
+if unknown PageStateAvailable :
+ boolean PageStateAvailable ;
+ PageStateAvailable := false ;
+fi ;
+
+if unknown OnRightPage :
+ boolean OnRightPage ;
+ OnRightPage := true ;
+fi ;
+
+if unknown OnOddPage :
+ boolean OnOddPage ;
+ OnOddPage := true ;
+fi ;
+
+if unknown InPageBody :
+ boolean InPageBody ;
+ InPageBody := false ;
+fi ;
+
+string CurrentLayout ;
+
+CurrentLayout := "default" ;
+
+PageNumber := 0 ;
+PaperHeight := 845.04684pt ;
+PaperWidth := 597.50787pt ;
+PrintPaperHeight := 845.04684pt ;
+PrintPaperWidth := 597.50787pt ;
+TopSpace := 71.12546pt ;
+BottomSpace := 0.0pt ;
+BackSpace := 71.13275pt ;
+CutSpace := 0.0pt ;
+MakeupHeight := 711.3191pt ;
+MakeupWidth := 426.78743pt ;
+TopHeight := 0.0pt ;
+TopDistance := 0.0pt ;
+HeaderHeight := 56.90294pt ;
+HeaderDistance := 0.0pt ;
+TextHeight := 597.51323pt ;
+FooterDistance := 0.0pt ;
+FooterHeight := 56.90294pt ;
+BottomDistance := 0.0pt ;
+BottomHeight := 0.0pt ;
+LeftEdgeWidth := 0.0pt ;
+LeftEdgeDistance := 0.0pt ;
+LeftMarginWidth := 75.58197pt ;
+LeftMarginDistance := 11.99829pt ;
+TextWidth := 426.78743pt ;
+RightMarginDistance := 11.99829pt ;
+RightMarginWidth := 75.58197pt ;
+RightEdgeDistance := 0.0pt ;
+RightEdgeWidth := 0.0pt ;
+
+PageOffset := 0.0pt ;
+PageDepth := 0.0pt ;
+
+LayoutColumns := 0 ;
+LayoutColumnDistance:= 0.0pt ;
+LayoutColumnWidth := 0.0pt ;
+
+LeftEdge := -4 ; Top := -40 ;
+LeftEdgeSeparator := -3 ; TopSeparator := -30 ;
+LeftMargin := -2 ; Header := -20 ;
+LeftMarginSeparator := -1 ; HeaderSeparator := -10 ;
+Text := 0 ; Text := 0 ;
+RightMarginSeparator := +1 ; FooterSeparator := +10 ;
+RightMargin := +2 ; Footer := +20 ;
+RightEdgeSeparator := +3 ; BottomSeparator := +30 ;
+RightEdge := +4 ; Bottom := +40 ;
+
+Margin := LeftMargin ; % obsolete
+Edge := LeftEdge ; % obsolete
+InnerMargin := RightMargin ; % obsolete
+InnerEdge := RightEdge ; % obsolete
+OuterMargin := LeftMargin ; % obsolete
+OuterEdge := LeftEdge ; % obsolete
+
+InnerMarginWidth := 0pt ;
+OuterMarginWidth := 0pt ;
+InnerMarginDistance := 0pt ;
+OuterMarginDistance := 0pt ;
+
+InnerEdgeWidth := 0pt ;
+OuterEdgeWidth := 0pt ;
+InnerEdgeDistance := 0pt ;
+OuterEdgeDistance := 0pt ;
+
+path Area [][] ; pair Location [][] ; path Field [][] ; path Page ;
+numeric HorPos ; numeric Hstep [] ; numeric Hsize [] ;
+numeric VerPos ; numeric Vstep [] ; numeric Vsize [] ;
+
+for VerPos=Top step 10 until Bottom:
+ for HorPos=LeftEdge step 1 until RightEdge:
+ Area[HorPos][VerPos] := origin--cycle ;
+ Area[VerPos][HorPos] := Area[HorPos][VerPos] ;
+ Location[HorPos][VerPos] := origin ;
+ Location[VerPos][HorPos] := Location[HorPos][VerPos] ;
+ Field[HorPos][VerPos] := origin--cycle ;
+ Field[VerPos][HorPos] := Field[HorPos][VerPos] ;
+ endfor ;
+endfor ;
+
+% def LoadPageState =
+% scantokens "input mp-state.tmp" ;
+% enddef ;
+
+def SwapPageState =
+ if not OnRightPage :
+ BackSpace := PaperWidth-MakeupWidth-BackSpace ;
+ CutSpace := PaperWidth-MakeupWidth-CutSpace ;
+ i := LeftMarginWidth ;
+ LeftMarginWidth := RightMarginWidth ;
+ RightMarginWidth := i ;
+ i := LeftMarginDistance ;
+ LeftMarginDistance := RightMarginDistance ;
+ RightMarginDistance := i ;
+ i := LeftEdgeWidth ;
+ LeftEdgeWidth := RightEdgeWidth ;
+ RightEdgeWidth := i ;
+ i := LeftEdgeDistance ;
+ LeftEdgeDistance := RightEdgeDistance ;
+ RightEdgeDistance := i ;
+
+ % these are now available as ..Width and ..Distance
+
+ Margin := LeftMargin ;
+ Edge := LeftEdge ;
+ InnerMargin := RightMargin ;
+ InnerEdge := RightEdge ;
+ OuterMargin := LeftMargin ;
+ OuterEdge := LeftEdge ;
+ else :
+ Margin := RightMargin ;
+ Edge := RightEdge ;
+ InnerMargin := LeftMargin ;
+ InnerEdge := LeftEdge ;
+ OuterMargin := RightMargin ;
+ OuterEdge := RightEdge ;
+ fi ;
+enddef ;
+
+def SetPageAreas =
+
+ numeric Vsize[], Hsize[], Vstep[], Hstep[] ;
+
+ Vsize[Top] = TopHeight ;
+ Vsize[TopSeparator] = TopDistance ;
+ Vsize[Header] = HeaderHeight ;
+ Vsize[HeaderSeparator] = HeaderDistance ;
+ Vsize[Text] = TextHeight ;
+ Vsize[FooterSeparator] = FooterDistance ;
+ Vsize[Footer] = FooterHeight ;
+ Vsize[BottomSeparator] = BottomDistance ;
+ Vsize[Bottom] = BottomHeight ;
+
+ Vstep[Top] = Vstep[TopSeparator] +Vsize[TopSeparator] ;
+ Vstep[TopSeparator] = PaperHeight-TopSpace ;
+ Vstep[Header] = Vstep[TopSeparator] -Vsize[Header] ;
+ Vstep[HeaderSeparator] = Vstep[Header] -Vsize[HeaderSeparator] ;
+ Vstep[Text] = Vstep[HeaderSeparator]-Vsize[Text] ;
+ Vstep[FooterSeparator] = Vstep[Text] -Vsize[FooterSeparator] ;
+ Vstep[Footer] = Vstep[FooterSeparator]-Vsize[Footer] ;
+ Vstep[BottomSeparator] = Vstep[Footer] -Vsize[BottomSeparator] ;
+ Vstep[Bottom] = Vstep[BottomSeparator]-Vsize[Bottom] ;
+
+ Hsize[LeftEdge] = LeftEdgeWidth ;
+ Hsize[LeftEdgeSeparator] = LeftEdgeDistance ;
+ Hsize[LeftMargin] = LeftMarginWidth ;
+ Hsize[LeftMarginSeparator] = LeftMarginDistance ;
+ Hsize[Text] = MakeupWidth ;
+ Hsize[RightMarginSeparator] = RightMarginDistance ;
+ Hsize[RightMargin] = RightMarginWidth ;
+ Hsize[RightEdgeSeparator] = RightEdgeDistance ;
+ Hsize[RightEdge] = RightEdgeWidth ;
+
+ Hstep[LeftEdge] = Hstep[LeftEdgeSeparator] -Hsize[LeftEdge] ;
+ Hstep[LeftEdgeSeparator] = Hstep[LeftMargin] -Hsize[LeftEdgeSeparator] ;
+ Hstep[LeftMargin] = Hstep[LeftMarginSeparator] -Hsize[LeftMargin] ;
+ Hstep[LeftMarginSeparator] = Hstep[Text] -Hsize[LeftMarginSeparator] ;
+ Hstep[Text] = BackSpace ;
+ Hstep[RightMarginSeparator] = Hstep[Text] +Hsize[Text] ;
+ Hstep[RightMargin] = Hstep[RightMarginSeparator]+Hsize[RightMarginSeparator] ;
+ Hstep[RightEdgeSeparator] = Hstep[RightMargin] +Hsize[RightMargin] ;
+ Hstep[RightEdge] = Hstep[RightEdgeSeparator] +Hsize[RightEdgeSeparator] ;
+
+ for VerPos=Top step 10 until Bottom:
+ for HorPos=LeftEdge step 1 until RightEdge:
+ Area[HorPos][VerPos] := unitsquare xscaled Hsize[HorPos] yscaled Vsize[VerPos] ;
+ Area[VerPos][HorPos] := Area[HorPos][VerPos] ;
+ Location[HorPos][VerPos] := (Hstep[HorPos],Vstep[VerPos]) ;
+ Location[VerPos][HorPos] := Location[HorPos][VerPos] ;
+ Field[HorPos][VerPos] := Area[HorPos][VerPos] shifted Location[HorPos][VerPos] ;
+ Field[VerPos][HorPos] := Field[HorPos][VerPos] ;
+ endfor ;
+ endfor ;
+
+ Page := unitsquare xscaled PaperWidth yscaled PaperHeight ;
+
+enddef ;
+
+def BoundPageAreas =
+ % pickup pencircle scaled 0pt ;
+ bboxmargin := 0 ; setbounds currentpicture to Page ;
+enddef ;
+
+def StartPage =
+ begingroup ;
+ if PageStateAvailable :
+ LoadPageState ;
+ SwapPageState ;
+ fi ;
+ SetPageAreas ;
+ BoundPageAreas ;
+enddef ;
+
+def StopPage =
+ BoundPageAreas ;
+ endgroup ;
+enddef ;
+
+% cover pages
+
+def BoundCoverAreas =
+ % todo: add cropmarks
+ bboxmargin := 0 ; setbounds currentpicture to Paper enlarged PaperBleed ;
+enddef ;
+
+def SetCoverAreas =
+
+ if unknown SpineWidth :
+ SpineWidth := 8mm ;
+ fi ;
+
+ if unknown PaperBleed :
+ PaperBleed := 0 ;
+ fi ;
+
+ FrontPageWidth := PaperWidth ;
+ BackPageWidth := PaperWidth ;
+ PaperWidth := 2 * PaperWidth + SpineWidth ;
+
+ FrontPageHeight := PaperHeight ;
+ BackPageHeight := PaperHeight ;
+ PaperHeight := PaperHeight ;
+ SpineHeight := PaperHeight ;
+
+ path Paper ; Paper := unitsquare xscaled PaperWidth yscaled PaperHeight ;
+ path Spine ; Spine := unitsquare xscaled SpineWidth yscaled PaperHeight shifted (BackPageWidth,0);
+ path BackPage ; BackPage := unitsquare xscaled BackPageWidth yscaled PaperHeight ;
+ path FrontPage ; FrontPage := unitsquare xscaled FrontPageWidth yscaled PaperHeight shifted (BackPageWidth+SpineWidth,0) ;
+
+enddef ;
+
+
+def StartCover =
+ begingroup ;
+ if PageStateAvailable :
+ LoadPageState ;
+ % SwapPageState ;
+ fi ;
+ SetPageAreas ;
+ SetCoverAreas ;
+ BoundCoverAreas ;
+enddef ;
+
+def StopCover =
+ BoundCoverAreas ;
+ endgroup ;
+enddef ;
+
+% overlays:
+
+def OverlayBox =
+ (unitsquare xyscaled (OverlayWidth,OverlayHeight))
+enddef ;
+
+% handy
+
+def innerenlarged =
+ hide(LoadPageState)
+ if OnRightPage : leftenlarged else : rightenlarged fi
+enddef ;
+
+def outerenlarged =
+ hide(LoadPageState)
+ if OnRightPage : rightenlarged else : leftenlarged fi
+enddef ;
+
+% obsolete
+
+def llEnlarged (expr p,d) = (llcorner p shifted (-d,-d)) enddef ;
+def lrEnlarged (expr p,d) = (lrcorner p shifted (+d,-d)) enddef ;
+def urEnlarged (expr p,d) = (urcorner p shifted (+d,+d)) enddef ;
+def ulEnlarged (expr p,d) = (ulcorner p shifted (-d,+d)) enddef ;
+
+def Enlarged (expr p, d) =
+ (llEnlarged (p,d) --
+ lrEnlarged (p,d) --
+ urEnlarged (p,d) --
+ ulEnlarged (p,d) -- cycle)
+enddef ;
diff --git a/Master/texmf-dist/metapost/context/base/mp-shap.mp b/Master/texmf-dist/metapost/context/base/mp-shap.mp
deleted file mode 100644
index 0f5fe431d99..00000000000
--- a/Master/texmf-dist/metapost/context/base/mp-shap.mp
+++ /dev/null
@@ -1,307 +0,0 @@
-%D \module
-%D [ file=mp-shap.mp,
-%D version=2000.05.31,
-%D title=\CONTEXT\ \METAPOST\ graphics,
-%D subtitle=shapes,
-%D author=Hans Hagen,
-%D date=\currentdate,
-%D copyright={PRAGMA / Hans Hagen \& Ton Otten}]
-%C
-%C This module is part of the \CONTEXT\ macro||package and is
-%C therefore copyrighted by \PRAGMA. See licen-en.pdf for
-%C details.
-
-if unknown context_tool : input mp-tool ; fi ;
-if known context_shap : endinput ; fi ;
-
-boolean context_shap ; context_shap := true ;
-
-vardef some_shape_path (expr type) =
-
- begingroup ;
-
- save border, xradius, yradius,
- normal, mirror, rotate,
- lc, rc, tc, bc, ll, lr, ur, ul,
- llx, lrx, urx, ulx, lly, lry, ury, uly ;
-
- path border ;
-
- xradius := .15 ; xxradius := .10 ;
- yradius := .15 ; yyradius := .10 ;
-
- pair ll ; ll := llcorner (unitsquare shifted (-.5,-.5)) ;
- pair lr ; lr := lrcorner (unitsquare shifted (-.5,-.5)) ;
- pair ur ; ur := urcorner (unitsquare shifted (-.5,-.5)) ;
- pair ul ; ul := ulcorner (unitsquare shifted (-.5,-.5)) ;
-
- pair llx ; llx := ll shifted (xradius,0) ;
- pair lly ; lly := ll shifted (0,yradius) ;
-
- pair lrx ; lrx := lr shifted (-xradius,0) ;
- pair lry ; lry := lr shifted (0,yradius) ;
-
- pair urx ; urx := ur shifted (-xradius,0) ;
- pair ury ; ury := ur shifted (0,-yradius) ;
-
- pair ulx ; ulx := ul shifted (xradius,0) ;
- pair uly ; uly := ul shifted (0,-yradius) ;
-
- pair llxx ; llxx := ll shifted (xxradius,0) ;
- pair llyy ; llyy := ll shifted (0,yyradius) ;
-
- pair lrxx ; lrxx := lr shifted (-xxradius,0) ;
- pair lryy ; lryy := lr shifted (0,yyradius) ;
-
- pair urxx ; urxx := ur shifted (-xxradius,0) ;
- pair uryy ; uryy := ur shifted (0,-yyradius) ;
-
- pair ulxx ; ulxx := ul shifted (xxradius,0) ;
- pair ulyy ; ulyy := ul shifted (0,-yyradius) ;
-
- pair lc ; lc := ll shifted (0,.5) ;
- pair rc ; rc := lr shifted (0,.5) ;
- pair tc ; tc := ul shifted (.5,0) ;
- pair bc ; bc := ll shifted (.5,0) ;
-
- def mirror (expr p) =
- p rotatedaround(origin,180)
- enddef ;
-
- def normal (expr p ) =
- p
- enddef ;
-
- def rotate (expr p) =
- p rotated 45
- enddef ;
-
- if type= 0 :
- border := normal (origin--cycle) ;
-
- elseif type= 5 :
- border := normal (llx--lrx{right}...rc...{left}urx--ulx{left}...lc...{right}cycle) ;
- elseif type= 6 :
- border := normal (ll--lrx{right}...rc...{left}urx--ul--cycle) ;
- elseif type= 7 :
- border := mirror (ll--lrx{right}...rc...{left}urx--ul--cycle) ;
- elseif type= 8 :
- border := normal (lr--ury{up}...tc...{down}uly--ll--cycle) ;
- elseif type= 9 :
- border := mirror (lr--ury{up}...tc...{down}uly--ll--cycle) ;
- elseif type=10 :
- border := normal (ll--lr--ur--ul--ll--ur--ul--ll--cycle) ;
- elseif type=11 :
- border := normal (ll--lr--ur--ul--ll--lr--ul--ll--cycle) ;
- elseif type=12 :
- border := normal (ll--lrx--ur--ulx--cycle) ;
- elseif type=13 :
- border := normal (llx--lr--urx--ul--cycle) ;
- elseif type=14 :
- border := normal (lly--bc--lry--ury--tc--uly--cycle) ;
- elseif type=15 :
- border := normal (llx--lrx--rc--urx--ulx--lc--cycle) ;
- elseif type=16 :
- border := normal (ll--lrx--rc--urx--ul--cycle) ;
- elseif type=17 :
- border := mirror (ll--lrx--rc--urx--ul--cycle) ;
- elseif type=18 :
- border := normal (lr--ury--tc--uly--ll--cycle) ;
- elseif type=19 :
- border := mirror (lr--ury--tc--uly--ll--cycle) ;
- elseif type=20 :
- border := normal (ll--lr--ur--ul--ll--llxx--ulxx--ul--ll--
- lr--ur--urxx--lrxx--cycle) ;
- elseif type=21 :
- border := normal (ul--ll--lr--ur--ul--ulyy--uryy--ur--ul--
- ll--lr--lryy--llyy--cycle) ;
- elseif type=22 :
- border := normal (ll--lrx--lry--ur--ulx--uly--cycle) ;
- elseif type=23 :
- border := normal (llx--lr--ury--urx--ul--lly--cycle) ;
- elseif type=24 :
- border := normal (ll--lr--ur--ul--cycle) ;
- elseif type=25 :
- border := normal (llx--lrx--lry--ury--urx--ulx--uly--lly--cycle) ;
- elseif type=26 :
- border := normal (ll--lrx--lry--ur--ul--cycle) ;
- elseif type=27 :
- border := mirror (ll--lr--ury--urx--ul--cycle) ;
- elseif type=28 :
- border := normal (ll--lr--ury--urx--ul--cycle) ;
- elseif type=29 :
- border := mirror (ll--lrx--lry--ur--ul--cycle) ;
- elseif type=30 :
- border := rotate (bc{right}...{up}rc...tc{left}...{down}lc...{right}bc &
- bc--tc & tc{left}..{down}lc & lc--rc &
- rc{up}..tc{left}...{down}lc...{right}bc & cycle) ;
- elseif type=31 :
- border := normal (bc{right}...{up}rc...tc{left}...{down}lc...{right}bc &
- bc--tc & tc{left}..{down}lc & lc--rc &
- rc{up}..tc{left}...{down}lc...{right}bc & cycle) ;
- elseif type=32 :
- border := normal (ll{right}...{right}lry--ur--ul--ll--cycle) ;
- elseif type=33 :
- border := normal (ll{right}...{right}lry--ur--ul--ll--cycle
- --ul--ulx--ulx shifted(0,yyradius)
- --ur shifted(yyradius,yyradius)
- --lry shifted(yyradius,yyradius)
- --lry shifted(0,yyradius)
- --ur--ul--cycle ) ;
- elseif type=34 :
- border := normal (uly..tc..ury &
- ury..tc shifted (0,-2yradius)..uly &
- uly--lly &
- lly..bc..lry &
- lry--ury &
- ury..tc shifted (0,-2yradius)..uly & cycle ) ;
- elseif type=35 :
- border := normal (bc{right}...rc{up}...tc{left}...lc{down}...cycle) ;
- elseif type=36 :
- border := normal (ul--tc{right}..rc{down}..{left}bc--ll &
- ll..(xpart llx, ypart lc)..ul & cycle) ;
- elseif type=37 :
- border := mirror (ul--tc{right}..rc{down}..{left}bc--ll &
- ll..(xpart llx, ypart lc)..ul & cycle) ;
- elseif type=38 :
- border := normal (ll--lc{up}..tc{right}..{down}rc--lr &
- lr..(xpart bc, ypart lly)..ll & cycle) ;
- elseif type=39 :
- border := mirror (ll--lc{up}..tc{right}..{down}rc--lr &
- lr..(xpart bc, ypart lly)..ll & cycle) ;
- elseif type=40 :
- border := normal (ll--lr--ur--ul--ll--ur--ul--ll--lr--ul--ll--cycle) ;
- elseif type=41 :
- border := normal (ll--lr--ur--ul--ll--lr--rc--lc--ll--bc--tc--ul--ll & cycle) ;
- elseif type=42 :
- border := normal (ll--lr--origin shifted (+epsilon,0)--
- ur--ul--origin shifted (-epsilon,0)--cycle) ;
- elseif type=43 :
- border := normal (ll--ul--origin shifted (0,+epsilon)--
- ur--lr--origin shifted (0,-epsilon)--cycle) ;
- elseif type=45 :
- border := normal (bc--rc--tc--lc--cycle) ;
- elseif type=46 :
- border := normal (ll--ul--rc--cycle) ;
- elseif type=47 :
- border := mirror (ll--ul--rc--cycle) ;
- elseif type=48 :
- border := mirror (ul--ur--bc--cycle) ;
- elseif type=49 :
- border := normal (ul--ur--bc--cycle) ;
-
- elseif type=56 :
- border := normal (ll--lry--ury--ul--cycle) ;
- elseif type=57 :
- border := mirror (ll--lry--ury--ul--cycle) ;
- elseif type=58 :
- border := normal (ll--ulx--urx--lr--cycle) ;
- elseif type=59 :
- border := mirror (ll--ulx--urx--lr--cycle) ;
-
- elseif type=61 :
- border := normal (fullcircle scaled (1.5*yradius) xscaled (grid_height/grid_width)) ;
- elseif type=62 :
- border := normal (fullcircle scaled (2.0*yradius) xscaled (grid_height/grid_width)) ;
-
- elseif type=66 :
- border := normal (rc--origin shifted ( epsilon,0) --cycle &
- rc--origin --cycle ) ;
- elseif type=67 :
- border := normal (lc--origin shifted (-epsilon,0) --cycle &
- lc--origin --cycle ) ;
- elseif type=68 :
- border := normal (tc--origin shifted (0, epsilon) --cycle &
- tc--origin --cycle ) ;
- elseif type=69 :
- border := normal (bc--origin shifted (0,-epsilon) --cycle &
- bc--origin --cycle ) ;
-
- elseif type=75 :
- border := mirror (lly--lry--ury--uly--cycle) ;
- elseif type=76 :
- border := mirror (ll--lr--ur--uly--cycle) ;
- elseif type=77 :
- border := mirror (ll--lr--ury--ul--cycle) ;
- elseif type=78 :
- border := mirror (lly--lr--ur--ul--cycle) ;
- elseif type=79 :
- border := mirror (ll--lry--ur--ul--cycle) ;
-
- else :
- border := normal (origin--cycle) ;
- %border := normal (ll--lr--ur--ul--cycle) ;
- fi ;
-
- border
-
- endgroup
-
-enddef;
-
-def some_shape ( expr shape_type ,
- shape_width ,
- shape_height ,
- shape_linewidth ,
- shape_linecolor ,
- shape_fillcolor ) =
-
- path p ; p :=
- some_shape_path (shape_type)
- xscaled shape_width
- yscaled shape_height ;
-
- pickup pencircle scaled shape_linewidth ;
-
- fill p withcolor shape_fillcolor ;
- draw p withcolor shape_linecolor ;
-
-enddef ;
-
-vardef drawshape (expr t, p, lw, lc, fc) =
- save pp ;
- if t>1 : % normal shape
- path pp ;
- pp := some_shape_path(t) xyscaled(bbwidth(p), bbheight(p)) shifted center p ;
- fill pp withcolor fc ;
- draw pp withpen pencircle scaled lw withcolor lc ;
- elseif t=1 : % background only
- path pp ;
- pp := fullsquare xyscaled(bbwidth(p), bbheight(p)) shifted center p ;
- fill pp withcolor fc ;
- else : % dimensions only
- picture pp ; pp := nullpicture ;
- setbounds pp to fullsquare xyscaled(bbwidth(p), bbheight(p)) shifted center p ;
- draw pp ;
- fi ;
-enddef ;
-
-vardef drawline (expr t, p, lw, lc) =
- if (t>0) and (length(p)>1) :
- saveoptions ;
- drawoptions(withpen pencircle scaled lw withcolor lc) ;
- draw p ;
- if t = 1 :
- draw arrowheadonpath(p,1) ;
- elseif t = 2 :
- draw arrowheadonpath(reverse p,1) ;
- elseif t = 3 :
- for $ = p,reverse p : draw arrowheadonpath($,1) ; endfor ;
- elseif t = 11 :
- draw arrowheadonpath(p,1/2) ;
- elseif t = 12 :
- draw arrowheadonpath(reverse p,1/2) ;
- elseif t = 13 :
- for $=p,reverse p : draw arrowheadonpath($,1) ; endfor ;
- for $=p,reverse p : draw arrowheadonpath($,3/4) ; endfor ;
- elseif t = 21 :
- for $=1/5,1/2,4/5 : draw arrowheadonpath(p,$) ; endfor ;
- elseif t = 22 :
- for $=1/5,1/2,4/5 : draw arrowheadonpath(reverse p,$) ; endfor ;
- elseif t = 23 :
- for $=p,reverse p : draw arrowheadonpath($,1/4) ; endfor ;
- fi ;
- fi ;
-enddef ;
-
-endinput ;
diff --git a/Master/texmf-dist/metapost/context/base/mp-shap.mpii b/Master/texmf-dist/metapost/context/base/mp-shap.mpii
new file mode 100644
index 00000000000..2915069976e
--- /dev/null
+++ b/Master/texmf-dist/metapost/context/base/mp-shap.mpii
@@ -0,0 +1,206 @@
+%D \module
+%D [ file=mp-shap.mp,
+%D version=2000.05.31,
+%D title=\CONTEXT\ \METAPOST\ graphics,
+%D subtitle=shapes,
+%D author=Hans Hagen,
+%D date=\currentdate,
+%D copyright={PRAGMA / Hans Hagen \& Ton Otten}]
+%C
+%C This module is part of the \CONTEXT\ macro||package and is
+%C therefore copyrighted by \PRAGMA. See licen-en.pdf for
+%C details.
+
+if known context_shap : endinput ; fi ;
+
+boolean context_shap ; context_shap := true ;
+
+path predefined_shapes[] ;
+
+begingroup ;
+
+save xradius, yradius, xxradius, yyradius ;
+save ll, lr, ur, ul, llx, lly, lrx, lry, urx, ury, ulx, uly, llxx, llyy, lrxx, lryy, urxx, uryy, ulxx, ulyy, lc, rc, tc, bc ;
+
+numeric xradius, yradius, xxradius, yyradius ;
+pair ll, lr, ur, ul, llx, lly, lrx, lry, urx, ury, ulx, uly, llxx, llyy, lrxx, lryy, urxx, uryy, ulxx, ulyy, lc, rc, tc, bc ;
+
+xradius := .15 ;
+yradius := .15 ;
+xxradius := .10 ;
+yyradius := .10 ;
+
+ll := llcorner (unitsquare shifted (-.5,-.5)) ;
+lr := lrcorner (unitsquare shifted (-.5,-.5)) ;
+ur := urcorner (unitsquare shifted (-.5,-.5)) ;
+ul := ulcorner (unitsquare shifted (-.5,-.5)) ;
+
+llx := ll shifted (xradius,0) ;
+lly := ll shifted (0,yradius) ;
+
+lrx := lr shifted (-xradius,0) ;
+lry := lr shifted (0,yradius) ;
+
+urx := ur shifted (-xradius,0) ;
+ury := ur shifted (0,-yradius) ;
+
+ulx := ul shifted (xradius,0) ;
+uly := ul shifted (0,-yradius) ;
+
+llxx := ll shifted (xxradius,0) ;
+llyy := ll shifted (0,yyradius) ;
+
+lrxx := lr shifted (-xxradius,0) ;
+lryy := lr shifted (0,yyradius) ;
+
+urxx := ur shifted (-xxradius,0) ;
+uryy := ur shifted (0,-yyradius) ;
+
+ulxx := ul shifted (xxradius,0) ;
+ulyy := ul shifted (0,-yyradius) ;
+
+lc := ll shifted (0,.5) ;
+rc := lr shifted (0,.5) ;
+tc := ul shifted (.5,0) ;
+bc := ll shifted (.5,0) ;
+
+predefined_shapes[ 0] := (origin--cycle) ;
+predefined_shapes[ 5] := (llx--lrx{right}...rc...{left}urx--ulx{left}...lc...{right}cycle) ;
+predefined_shapes[ 6] := (ll--lrx{right}...rc...{left}urx--ul--cycle) ;
+predefined_shapes[ 7] := (ll--lrx{right}...rc...{left}urx--ul--cycle) rotatedaround(origin,180) ;
+predefined_shapes[ 8] := (lr--ury{up}...tc...{down}uly--ll--cycle) ;
+predefined_shapes[ 9] := (lr--ury{up}...tc...{down}uly--ll--cycle) rotatedaround(origin,180) ;
+predefined_shapes[10] := (ll--lr--ur--ul--ll--ur--ul--ll--cycle) ;
+predefined_shapes[11] := (ll--lr--ur--ul--ll--lr--ul--ll--cycle) ;
+predefined_shapes[12] := (ll--lrx--ur--ulx--cycle) ;
+predefined_shapes[13] := (llx--lr--urx--ul--cycle) ;
+predefined_shapes[14] := (lly--bc--lry--ury--tc--uly--cycle) ;
+predefined_shapes[15] := (llx--lrx--rc--urx--ulx--lc--cycle) ;
+predefined_shapes[16] := (ll--lrx--rc--urx--ul--cycle) ;
+predefined_shapes[17] := (ll--lrx--rc--urx--ul--cycle) rotatedaround(origin,180) ;
+predefined_shapes[18] := (lr--ury--tc--uly--ll--cycle) ;
+predefined_shapes[19] := (lr--ury--tc--uly--ll--cycle) rotatedaround(origin,180) ;
+predefined_shapes[20] := (ll--lr--ur--ul--ll--llxx--ulxx--ul--ll--lr--ur--urxx--lrxx--cycle) ;
+predefined_shapes[21] := (ul--ll--lr--ur--ul--ulyy--uryy--ur--ul--ll--lr--lryy--llyy--cycle) ;
+predefined_shapes[22] := (ll--lrx--lry--ur--ulx--uly--cycle) ;
+predefined_shapes[23] := (llx--lr--ury--urx--ul--lly--cycle) ;
+predefined_shapes[24] := (ll--lr--ur--ul--cycle) ;
+predefined_shapes[25] := (llx--lrx--lry--ury--urx--ulx--uly--lly--cycle) ;
+predefined_shapes[26] := (ll--lrx--lry--ur--ul--cycle) ;
+predefined_shapes[27] := (ll--lr--ury--urx--ul--cycle) rotatedaround(origin,180) ;
+predefined_shapes[28] := (ll--lr--ury--urx--ul--cycle) ;
+predefined_shapes[29] := (ll--lrx--lry--ur--ul--cycle) rotatedaround(origin,180) ;
+predefined_shapes[30] := (bc{right}...{up}rc...tc{left}...{down}lc...{right}bc & bc--tc & tc{left}..{down}lc & lc--rc & rc{up}..tc{left}...{down}lc...{right}bc & cycle) rotated 45;
+predefined_shapes[31] := (bc{right}...{up}rc...tc{left}...{down}lc...{right}bc & bc--tc & tc{left}..{down}lc & lc--rc & rc{up}..tc{left}...{down}lc...{right}bc & cycle) ;
+predefined_shapes[32] := (ll{right}...{right}lry--ur--ul--ll--cycle) ;
+predefined_shapes[33] := (ll{right}...{right}lry--ur--ul--ll--cycle--ul--ulx--ulx shifted(0,yyradius)--ur shifted(yyradius,yyradius)--lry shifted(yyradius,yyradius)--lry shifted(0,yyradius)--ur--ul--cycle ) ;
+predefined_shapes[34] := (uly..tc..ury & ury..tc shifted (0,-2yradius)..uly & uly--lly & lly..bc..lry & lry--ury & ury..tc shifted (0,-2yradius)..uly & cycle ) ;
+predefined_shapes[35] := (bc{right}...rc{up}...tc{left}...lc{down}...cycle) ;
+predefined_shapes[36] := (ul--tc{right}..rc{down}..{left}bc--ll & ll..(xpart llx, ypart lc)..ul & cycle) ;
+predefined_shapes[37] := (ul--tc{right}..rc{down}..{left}bc--ll & ll..(xpart llx, ypart lc)..ul & cycle) rotatedaround(origin,180) ;
+predefined_shapes[38] := (ll--lc{up}..tc{right}..{down}rc--lr & lr..(xpart bc, ypart lly)..ll & cycle) ;
+predefined_shapes[39] := (ll--lc{up}..tc{right}..{down}rc--lr & lr..(xpart bc, ypart lly)..ll & cycle) rotatedaround(origin,180) ;
+predefined_shapes[40] := (ll--lr--ur--ul--ll--ur--ul--ll--lr--ul--ll--cycle) ;
+predefined_shapes[41] := (ll--lr--ur--ul--ll--lr--rc--lc--ll--bc--tc--ul--ll & cycle) ;
+predefined_shapes[42] := (ll--lr--origin shifted (+epsilon,0)--ur--ul--origin shifted (-epsilon,0)--cycle) ;
+predefined_shapes[43] := (ll--ul--origin shifted (0,+epsilon)--ur--lr--origin shifted (0,-epsilon)--cycle) ;
+predefined_shapes[45] := (bc--rc--tc--lc--cycle) ;
+predefined_shapes[46] := (ll--ul--rc--cycle) ;
+predefined_shapes[47] := (ll--ul--rc--cycle) rotatedaround(origin,180) ;
+predefined_shapes[48] := (ul--ur--bc--cycle) rotatedaround(origin,180) ;
+predefined_shapes[49] := (ul--ur--bc--cycle) ;
+predefined_shapes[56] := (ll--lry--ury--ul--cycle) ;
+predefined_shapes[57] := (ll--lry--ury--ul--cycle) rotatedaround(origin,180) ;
+predefined_shapes[58] := (ll--ulx--urx--lr--cycle) ;
+predefined_shapes[59] := (ll--ulx--urx--lr--cycle) rotatedaround(origin,180);
+predefined_shapes[66] := (rc--origin shifted ( epsilon,0) --cycle & rc--origin--cycle ) ;
+predefined_shapes[67] := (lc--origin shifted (-epsilon,0) --cycle & lc--origin--cycle ) ;
+predefined_shapes[68] := (tc--origin shifted (0, epsilon) --cycle & tc--origin--cycle ) ;
+predefined_shapes[69] := (bc--origin shifted (0,-epsilon) --cycle & bc--origin--cycle ) ;
+predefined_shapes[75] := (lly--lry--ury--uly--cycle) rotatedaround(origin,180) ;
+predefined_shapes[76] := (ll--lr--ur--uly--cycle) rotatedaround(origin,180) ;
+predefined_shapes[77] := (ll--lr--ury--ul--cycle) rotatedaround(origin,180) ;
+predefined_shapes[78] := (lly--lr--ur--ul--cycle) rotatedaround(origin,180) ;
+predefined_shapes[79] := (ll--lry--ur--ul--cycle) rotatedaround(origin,180) ;
+
+numeric predefined_shapes_xradius ; predefined_shapes_xradius := xradius ;
+numeric predefined_shapes_yradius ; predefined_shapes_yradius := yradius ;
+numeric predefined_shapes_xxradius ; predefined_shapes_xxradius := xxradius ;
+numeric predefined_shapes_yyradius ; predefined_shapes_yyradius := yyradius ;
+
+endgroup ;
+
+vardef some_shape_path (expr type) =
+ if known predefined_shapes[type] : predefined_shapes[type] else : predefined_shapes[0] fi
+enddef ;
+
+def some_shape (expr shape_type, shape_width, shape_height, shape_linewidth, shape_linecolor, shape_fillcolor) =
+ begingroup ;
+ save p ; path p ;
+ p := some_shape_path (shape_type) xscaled shape_width yscaled shape_height ;
+ pickup pencircle scaled shape_linewidth ;
+ fill p withcolor shape_fillcolor ;
+ draw p withcolor shape_linecolor ;
+ endgroup ;
+enddef ;
+
+vardef drawpredefinedshape (expr t, p, lw, lc, fc) =
+ save pp ;
+ if t>1 : % normal shape
+ path pp ;
+ pp := some_shape_path(t) xyscaled(bbwidth(p), bbheight(p)) shifted center p ;
+ fill pp withcolor fc ;
+ draw pp withpen pencircle scaled lw withcolor lc ;
+ elseif t=1 : % background only
+ path pp ;
+ pp := fullsquare xyscaled(bbwidth(p), bbheight(p)) shifted center p ;
+ fill pp withcolor fc ;
+ else : % dimensions only
+ picture pp ; pp := nullpicture ;
+ setbounds pp to fullsquare xyscaled(bbwidth(p), bbheight(p)) shifted center p ;
+ draw pp ;
+ fi ;
+enddef ;
+
+vardef drawpredefinedline (expr t, p, lw, lc) =
+ if (t>0) and (length(p)>1) :
+ saveoptions ;
+ drawoptions(withpen pencircle scaled lw withcolor lc) ;
+ draw p ;
+ if t = 1 :
+ draw arrowheadonpath(p,1) ;
+ elseif t = 2 :
+ draw arrowheadonpath(reverse p,1) ;
+ elseif t = 3 :
+ for $ = p,reverse p :
+ draw arrowheadonpath($,1) ;
+ endfor ;
+ elseif t = 11 :
+ draw arrowheadonpath(p,1/2) ;
+ elseif t = 12 :
+ draw arrowheadonpath(reverse p,1/2) ;
+ elseif t = 13 :
+ for $=p,reverse p :
+ draw arrowheadonpath($,1) ;
+ endfor ;
+ for $=p,reverse p :
+ draw arrowheadonpath($,3/4) ;
+ endfor ;
+ elseif t = 21 :
+ for $=1/5,1/2,4/5 :
+ draw arrowheadonpath(p,$) ;
+ endfor ;
+ elseif t = 22 :
+ for $=1/5,1/2,4/5 :
+ draw arrowheadonpath(reverse p,$) ;
+ endfor ;
+ elseif t = 23 :
+ for $=p,reverse p :
+ draw arrowheadonpath($,1/4) ;
+ endfor ;
+ fi ;
+ fi ;
+enddef ;
+
+let drawshape = drawpredefinedshape ;
+let drawline = drawpredefinedline ;
diff --git a/Master/texmf-dist/metapost/context/base/mp-shap.mpiv b/Master/texmf-dist/metapost/context/base/mp-shap.mpiv
new file mode 100644
index 00000000000..c86edaf82bf
--- /dev/null
+++ b/Master/texmf-dist/metapost/context/base/mp-shap.mpiv
@@ -0,0 +1,218 @@
+%D \module
+%D [ file=mp-shap.mp,
+%D version=2000.05.31,
+%D title=\CONTEXT\ \METAPOST\ graphics,
+%D subtitle=shapes,
+%D author=Hans Hagen,
+%D date=\currentdate,
+%D copyright={PRAGMA / Hans Hagen \& Ton Otten}]
+%C
+%C This module is part of the \CONTEXT\ macro||package and is
+%C therefore copyrighted by \PRAGMA. See licen-en.pdf for
+%C details.
+
+if known context_shap : endinput ; fi ;
+
+boolean context_shap ; context_shap := true ;
+
+path predefined_shapes[] ;
+
+def start_predefined_shape_definition =
+
+ begingroup ;
+
+ save xradius, yradius, xxradius, yyradius ;
+ save ll, lr, ur, ul, llx, lly, lrx, lry, urx, ury, ulx, uly, llxx, llyy, lrxx, lryy, urxx, uryy, ulxx, ulyy, lc, rc, tc, bc ;
+
+ numeric xradius, yradius, xxradius, yyradius ;
+ pair ll, lr, ur, ul, llx, lly, lrx, lry, urx, ury, ulx, uly, llxx, llyy, lrxx, lryy, urxx, uryy, ulxx, ulyy, lc, rc, tc, bc ;
+
+ xradius := .15 ;
+ yradius := .15 ;
+ xxradius := .10 ;
+ yyradius := .10 ;
+
+ ll := llcorner (unitsquare shifted (-.5,-.5)) ;
+ lr := lrcorner (unitsquare shifted (-.5,-.5)) ;
+ ur := urcorner (unitsquare shifted (-.5,-.5)) ;
+ ul := ulcorner (unitsquare shifted (-.5,-.5)) ;
+
+ llx := ll shifted (xradius,0) ;
+ lly := ll shifted (0,yradius) ;
+
+ lrx := lr shifted (-xradius,0) ;
+ lry := lr shifted (0,yradius) ;
+
+ urx := ur shifted (-xradius,0) ;
+ ury := ur shifted (0,-yradius) ;
+
+ ulx := ul shifted (xradius,0) ;
+ uly := ul shifted (0,-yradius) ;
+
+ llxx := ll shifted (xxradius,0) ;
+ llyy := ll shifted (0,yyradius) ;
+
+ lrxx := lr shifted (-xxradius,0) ;
+ lryy := lr shifted (0,yyradius) ;
+
+ urxx := ur shifted (-xxradius,0) ;
+ uryy := ur shifted (0,-yyradius) ;
+
+ ulxx := ul shifted (xxradius,0) ;
+ ulyy := ul shifted (0,-yyradius) ;
+
+ lc := ll shifted (0,.5) ;
+ rc := lr shifted (0,.5) ;
+ tc := ul shifted (.5,0) ;
+ bc := ll shifted (.5,0) ;
+
+enddef ;
+
+def stop_predefined_shape_definition =
+
+ endgroup ;
+
+enddef ;
+
+start_predefined_shape_definition ;
+
+ predefined_shapes[ 0] := (origin--cycle) ;
+ predefined_shapes[ 5] := (llx--lrx{right}...rc...{left}urx--ulx{left}...lc...{right}cycle) ;
+ predefined_shapes[ 6] := (ll--lrx{right}...rc...{left}urx--ul--cycle) ;
+ predefined_shapes[ 7] := (ll--lrx{right}...rc...{left}urx--ul--cycle) rotatedaround(origin,180) ;
+ predefined_shapes[ 8] := (lr--ury{up}...tc...{down}uly--ll--cycle) ;
+ predefined_shapes[ 9] := (lr--ury{up}...tc...{down}uly--ll--cycle) rotatedaround(origin,180) ;
+ predefined_shapes[10] := (ll--lr--ur--ul--ll--ur--ul--ll--cycle) ;
+ predefined_shapes[11] := (ll--lr--ur--ul--ll--lr--ul--ll--cycle) ;
+ predefined_shapes[12] := (ll--lrx--ur--ulx--cycle) ;
+ predefined_shapes[13] := (llx--lr--urx--ul--cycle) ;
+ predefined_shapes[14] := (lly--bc--lry--ury--tc--uly--cycle) ;
+ predefined_shapes[15] := (llx--lrx--rc--urx--ulx--lc--cycle) ;
+ predefined_shapes[16] := (ll--lrx--rc--urx--ul--cycle) ;
+ predefined_shapes[17] := (ll--lrx--rc--urx--ul--cycle) rotatedaround(origin,180) ;
+ predefined_shapes[18] := (lr--ury--tc--uly--ll--cycle) ;
+ predefined_shapes[19] := (lr--ury--tc--uly--ll--cycle) rotatedaround(origin,180) ;
+ predefined_shapes[20] := (ll--lr--ur--ul--ll--llxx--ulxx--ul--ll--lr--ur--urxx--lrxx--cycle) ;
+ predefined_shapes[21] := (ul--ll--lr--ur--ul--ulyy--uryy--ur--ul--ll--lr--lryy--llyy--cycle) ;
+ predefined_shapes[22] := (ll--lrx--lry--ur--ulx--uly--cycle) ;
+ predefined_shapes[23] := (llx--lr--ury--urx--ul--lly--cycle) ;
+ predefined_shapes[24] := (ll--lr--ur--ul--cycle) ;
+ predefined_shapes[25] := (llx--lrx--lry--ury--urx--ulx--uly--lly--cycle) ;
+ predefined_shapes[26] := (ll--lrx--lry--ur--ul--cycle) ;
+ predefined_shapes[27] := (ll--lr--ury--urx--ul--cycle) rotatedaround(origin,180) ;
+ predefined_shapes[28] := (ll--lr--ury--urx--ul--cycle) ;
+ predefined_shapes[29] := (ll--lrx--lry--ur--ul--cycle) rotatedaround(origin,180) ;
+ predefined_shapes[30] := (bc{right}...{up}rc...tc{left}...{down}lc...{right}bc & bc--tc & tc{left}..{down}lc & lc--rc & rc{up}..tc{left}...{down}lc...{right}bc & cycle) rotated 45;
+ predefined_shapes[31] := (bc{right}...{up}rc...tc{left}...{down}lc...{right}bc & bc--tc & tc{left}..{down}lc & lc--rc & rc{up}..tc{left}...{down}lc...{right}bc & cycle) ;
+ predefined_shapes[32] := (ll{right}...{right}lry--ur--ul--ll--cycle) ;
+ predefined_shapes[33] := (ll{right}...{right}lry--ur--ul--ll--cycle--ul--ulx--ulx shifted(0,yyradius)--ur shifted(yyradius,yyradius)--lry shifted(yyradius,yyradius)--lry shifted(0,yyradius)--ur--ul--cycle ) ;
+ predefined_shapes[34] := (uly..tc..ury & ury..tc shifted (0,-2yradius)..uly & uly--lly & lly..bc..lry & lry--ury & ury..tc shifted (0,-2yradius)..uly & cycle ) ;
+ predefined_shapes[35] := (bc{right}...rc{up}...tc{left}...lc{down}...cycle) ;
+ predefined_shapes[36] := (ul--tc{right}..rc{down}..{left}bc--ll & ll..(xpart llx, ypart lc)..ul & cycle) ;
+ predefined_shapes[37] := (ul--tc{right}..rc{down}..{left}bc--ll & ll..(xpart llx, ypart lc)..ul & cycle) rotatedaround(origin,180) ;
+ predefined_shapes[38] := (ll--lc{up}..tc{right}..{down}rc--lr & lr..(xpart bc, ypart lly)..ll & cycle) ;
+ predefined_shapes[39] := (ll--lc{up}..tc{right}..{down}rc--lr & lr..(xpart bc, ypart lly)..ll & cycle) rotatedaround(origin,180) ;
+ predefined_shapes[40] := (ll--lr--ur--ul--ll--ur--ul--ll--lr--ul--ll--cycle) ;
+ predefined_shapes[41] := (ll--lr--ur--ul--ll--lr--rc--lc--ll--bc--tc--ul--ll & cycle) ;
+ predefined_shapes[42] := (ll--lr--origin shifted (+epsilon,0)--ur--ul--origin shifted (-epsilon,0)--cycle) ;
+ predefined_shapes[43] := (ll--ul--origin shifted (0,+epsilon)--ur--lr--origin shifted (0,-epsilon)--cycle) ;
+ predefined_shapes[45] := (bc--rc--tc--lc--cycle) ;
+ predefined_shapes[46] := (ll--ul--rc--cycle) ;
+ predefined_shapes[47] := (ll--ul--rc--cycle) rotatedaround(origin,180) ;
+ predefined_shapes[48] := (ul--ur--bc--cycle) rotatedaround(origin,180) ;
+ predefined_shapes[49] := (ul--ur--bc--cycle) ;
+ predefined_shapes[56] := (ll--lry--ury--ul--cycle) ;
+ predefined_shapes[57] := (ll--lry--ury--ul--cycle) rotatedaround(origin,180) ;
+ predefined_shapes[58] := (ll--ulx--urx--lr--cycle) ;
+ predefined_shapes[59] := (ll--ulx--urx--lr--cycle) rotatedaround(origin,180);
+ predefined_shapes[66] := (rc--origin shifted ( epsilon,0) --cycle & rc--origin--cycle ) ;
+ predefined_shapes[67] := (lc--origin shifted (-epsilon,0) --cycle & lc--origin--cycle ) ;
+ predefined_shapes[68] := (tc--origin shifted (0, epsilon) --cycle & tc--origin--cycle ) ;
+ predefined_shapes[69] := (bc--origin shifted (0,-epsilon) --cycle & bc--origin--cycle ) ;
+ predefined_shapes[75] := (lly--lry--ury--uly--cycle) rotatedaround(origin,180) ;
+ predefined_shapes[76] := (ll--lr--ur--uly--cycle) rotatedaround(origin,180) ;
+ predefined_shapes[77] := (ll--lr--ury--ul--cycle) rotatedaround(origin,180) ;
+ predefined_shapes[78] := (lly--lr--ur--ul--cycle) rotatedaround(origin,180) ;
+ predefined_shapes[79] := (ll--lry--ur--ul--cycle) rotatedaround(origin,180) ;
+
+ numeric predefined_shapes_xradius ; predefined_shapes_xradius := xradius ;
+ numeric predefined_shapes_yradius ; predefined_shapes_yradius := yradius ;
+ numeric predefined_shapes_xxradius ; predefined_shapes_xxradius := xxradius ;
+ numeric predefined_shapes_yyradius ; predefined_shapes_yyradius := yyradius ;
+
+stop_predefined_shape_definition ;
+
+vardef some_shape_path (expr type) =
+ if known predefined_shapes[type] : predefined_shapes[type] else : predefined_shapes[0] fi
+enddef ;
+
+def some_shape (expr shape_type, shape_width, shape_height, shape_linewidth, shape_linecolor, shape_fillcolor) =
+ begingroup ;
+ save p ; path p ;
+ p := some_shape_path (shape_type) xscaled shape_width yscaled shape_height ;
+ pickup pencircle scaled shape_linewidth ;
+ fill p withcolor shape_fillcolor ;
+ draw p withcolor shape_linecolor ;
+ endgroup ;
+enddef ;
+
+vardef drawpredefinedshape (expr t, p, lw, lc, fc) =
+ save pp ;
+ if t>1 : % normal shape
+ path pp ;
+ pp := some_shape_path(t) xyscaled(bbwidth(p), bbheight(p)) shifted center p ;
+ fill pp withcolor fc ;
+ draw pp withpen pencircle scaled lw withcolor lc ;
+ elseif t=1 : % background only
+ path pp ;
+ pp := fullsquare xyscaled(bbwidth(p), bbheight(p)) shifted center p ;
+ fill pp withcolor fc ;
+ else : % dimensions only
+ picture pp ; pp := nullpicture ;
+ setbounds pp to fullsquare xyscaled(bbwidth(p), bbheight(p)) shifted center p ;
+ draw pp ;
+ fi ;
+enddef ;
+
+vardef drawpredefinedline (expr t, p, lw, lc) =
+ if (t>0) and (length(p)>1) :
+ saveoptions ;
+ drawoptions(withpen pencircle scaled lw withcolor lc) ;
+ draw p ;
+ if t = 1 :
+ draw arrowheadonpath(p,1) ;
+ elseif t = 2 :
+ draw arrowheadonpath(reverse p,1) ;
+ elseif t = 3 :
+ for $ = p,reverse p :
+ draw arrowheadonpath($,1) ;
+ endfor ;
+ elseif t = 11 :
+ draw arrowheadonpath(p,1/2) ;
+ elseif t = 12 :
+ draw arrowheadonpath(reverse p,1/2) ;
+ elseif t = 13 :
+ for $=p,reverse p :
+ draw arrowheadonpath($,1) ;
+ endfor ;
+ for $=p,reverse p :
+ draw arrowheadonpath($,3/4) ;
+ endfor ;
+ elseif t = 21 :
+ for $=1/5,1/2,4/5 :
+ draw arrowheadonpath(p,$) ;
+ endfor ;
+ elseif t = 22 :
+ for $=1/5,1/2,4/5 :
+ draw arrowheadonpath(reverse p,$) ;
+ endfor ;
+ elseif t = 23 :
+ for $=p,reverse p :
+ draw arrowheadonpath($,1/4) ;
+ endfor ;
+ fi ;
+ fi ;
+enddef ;
+
+let drawshape = drawpredefinedshape ;
+let drawline = drawpredefinedline ;
diff --git a/Master/texmf-dist/metapost/context/base/mp-spec.mp b/Master/texmf-dist/metapost/context/base/mp-spec.mpii
index 123e75faaae..7cb960524b6 100644
--- a/Master/texmf-dist/metapost/context/base/mp-spec.mp
+++ b/Master/texmf-dist/metapost/context/base/mp-spec.mpii
@@ -47,9 +47,7 @@
%D for instance shading. More information can be found in
%D type {supp-mpe.tex}.
-if known mplib : endinput ; fi ;
-if unknown context_tool : input mp-tool ; fi ;
-if known context_spec : endinput ; fi ;
+if known context_spec : endinput ; fi ;
boolean context_spec ; context_spec := true ;
@@ -715,8 +713,6 @@ enddef ;
% spotcolor is already scaled
-endinput ;
-
% just an exercise (due to a question by Chof on the context mailing list); scaling of
% 'special' colors is not possible and the next solution is incomplete (spot colors,
% transparency, etc); watch the the tricky chained macro construction
diff --git a/Master/texmf-dist/metapost/context/base/mp-step.mp b/Master/texmf-dist/metapost/context/base/mp-step.mpii
index d602f701430..a8d0df8e094 100644
--- a/Master/texmf-dist/metapost/context/base/mp-step.mp
+++ b/Master/texmf-dist/metapost/context/base/mp-step.mpii
@@ -11,8 +11,7 @@
%C therefore copyrighted by \PRAGMA. See licen-en.pdf for
%C details.
-if unknown context_tool : input mp-tool ; fi ;
-if known context_step : endinput ; fi ;
+if known context_step : endinput ; fi ;
boolean context_step ; context_step := true ;
@@ -39,7 +38,7 @@ enddef ;
def analyze_step_chart =
numeric n[], l[][], r[][] ; pair p[] ;
- n[t] := n[b] := 0 ; numeric tb ;
+ n[t] := n[b] := 0 ; numeric tb ;
for i=1 upto nofcells : for nn = t, b :
if bbwidth(cells[nn][i])>0 : n[nn] := n[nn] + 1 ; fi ;
l[t][i] := r[t][i] := l[b][i] := r[b][i] := 0 ;
@@ -80,15 +79,15 @@ vardef get_step_chart_top_line (expr i, j) =
p[3] := p[3] shifted (0,+line_v_offset) ;
(p[1] {up} ... p[2] ... {down} p[3])
else :
- origin
- fi
+ origin
+ fi
else :
- origin
- fi
+ origin
+ fi
else :
- origin
- fi
-enddef ;
+ origin
+ fi
+enddef ;
vardef get_step_chart_bot_line (expr i, j) =
if bbwidth(cells[b][i])>0 :
@@ -108,31 +107,31 @@ vardef get_step_chart_bot_line (expr i, j) =
p[3] := p[3] shifted (0,-line_v_offset) ;
(p[1] {down} ... p[2] ... {up} p[3])
else :
- origin
- fi
+ origin
+ fi
else :
- origin
- fi
+ origin
+ fi
else :
- origin
- fi
+ origin
+ fi
enddef ;
def end_step_chart =
- for i=1 upto nofcells : for nn = t, b :
- if bbwidth(cells[nn][i]) >0 : draw cells[nn][i] ; fi ;
+ for i=1 upto nofcells : for nn = t, b :
+ if bbwidth(cells[nn][i]) >0 : draw cells[nn][i] ; fi ;
endfor ; endfor ;
- for i=1 upto nofcells : for j=i upto nofcells : for nn = t, b :
+ for i=1 upto nofcells : for j=i upto nofcells : for nn = t, b :
if known lines[nn][i][j] :
if bbwidth(lines[nn][i][j])>0 : draw lines[nn][i][j] ; fi ;
- fi ;
+ fi ;
endfor ; endfor ; endfor ;
for i=1 upto nofcells : for j=i upto nofcells : for nn = t, b :
if bbwidth(texts[nn][i][j])>0 : draw texts[nn][i][j] ; fi ;
endfor ; endfor ; endfor ;
enddef ;
-%D Step tables.
+%D Step tables.
def begin_step_table =
initialize_step_variables ;
@@ -141,13 +140,13 @@ def begin_step_table =
enddef ;
def end_step_table =
- for i=1 upto nofcells : if known cells[i] : if bbwidth(cells[i])>0 :
- draw cells[i] ;
+ for i=1 upto nofcells : if known cells[i] : if bbwidth(cells[i])>0 :
+ draw cells[i] ;
fi ; fi ; endfor ;
- for i=1 upto nofcells : if known lines[i] : if bbwidth(lines[i])>0 :
- draw lines[i] ;
+ for i=1 upto nofcells : if known lines[i] : if bbwidth(lines[i])>0 :
+ draw lines[i] ;
fi ; fi ; endfor ;
- for i=1 upto nofcells : if known texts[i] : if bbwidth(texts[i])>0 :
+ for i=1 upto nofcells : if known texts[i] : if bbwidth(texts[i])>0 :
draw texts[i] ;
fi ; fi ; endfor ;
enddef ;
@@ -167,8 +166,6 @@ vardef get_step_table_line (expr i) =
fi
enddef ;
-endinput
-
%D The older method let \METAPOST\ do the typesetting. The
%D macros needed for that are included here for educational
%D purposes.
diff --git a/Master/texmf-dist/metapost/context/base/mp-step.mpiv b/Master/texmf-dist/metapost/context/base/mp-step.mpiv
new file mode 100644
index 00000000000..21a20ce7172
--- /dev/null
+++ b/Master/texmf-dist/metapost/context/base/mp-step.mpiv
@@ -0,0 +1,376 @@
+%D \module
+%D [ file=mp-cell.mpiv, % mp-step.mp,
+%D version=2010.10.07, % 2001.05.22,
+%D title=\CONTEXT\ \METAPOST\ graphics,
+%D subtitle=steps,
+%D author=Hans Hagen,
+%D date=\currentdate,
+%D copyright={PRAGMA / Hans Hagen \& Ton Otten}]
+%C
+%C This module is part of the \CONTEXT\ macro||package and is
+%C therefore copyrighted by \PRAGMA. See licen-en.pdf for
+%C details.
+
+% step prefixes .. no save needed
+
+if known context_cell : endinput ; fi ;
+
+boolean context_cell ; context_cell := true ;
+
+def initialize_step_variables =
+ save
+ text_fill_color, text_line_color, text_line_width, text_offset,
+ cell_fill_color, cell_line_color, cell_line_width, cell_offset,
+ line_line_color, line_line_width, line_alternative,
+ line_distance, cell_distance_y, cell_distance_x,
+ nofcells, chart_vertical ;
+
+ color text_line_color ; text_line_color := red ;
+ color cell_line_color ; cell_line_color := blue ;
+ color line_line_color ; line_line_color := green ;
+
+ color text_fill_color ; text_fill_color := white ;
+ color cell_fill_color ; cell_fill_color := white ;
+
+ numeric text_line_width ; text_line_width := 2pt ;
+ numeric cell_line_width ; cell_line_width := 2pt ;
+ numeric line_line_width ; line_line_width := 2pt ;
+
+ numeric text_offset ; text_offset := 4pt ;
+ numeric cell_offset ; cell_offset := 4pt ;
+
+ numeric line_distance ; line_distance := 10pt ; % between line and text
+ numeric line_offset ; line_offset := 4pt ; % between center and start of line
+ numeric line_height ; line_height := 20pt ;
+
+ numeric cell_distance_y ; cell_distance_y := 20pt ;
+ numeric cell_distance_x ; cell_distance_x := 20pt ;
+
+ numeric text_distance_set ; text_distance_set := 4pt ;
+
+ boolean chart_vertical ; chart_vertical := false ;
+
+ numeric nofcells ; nofcells := 0 ;
+
+enddef ;
+
+def step_cells (expr t, b) =
+ nofcells := nofcells + 1 ;
+ cells_t[nofcells] := textext.d(t) ;
+ cells_b[nofcells] := textext.d(b) ;
+ texts_t[nofcells] := nullpicture ;
+ texts_m[nofcells] := nullpicture ;
+ texts_b[nofcells] := nullpicture ;
+enddef ;
+
+def step_texts (expr t, b) =
+ texts_t[nofcells] := textext.d(t) ;
+ texts_m[nofcells] := textext.d(m) ;
+ texts_b[nofcells] := textext.d(b) ;
+enddef ;
+
+def step_begin_cell =
+ nofcells := nofcells + 1 ;
+ cells_t[nofcells] := nullpicture ;
+ cells_b[nofcells] := nullpicture ;
+ texts_t[nofcells] := nullpicture ;
+ texts_m[nofcells] := nullpicture ;
+ texts_b[nofcells] := nullpicture ;
+enddef ;
+
+def step_end_cell =
+enddef ;
+
+def step_cell_top (expr t) = cells_t[nofcells] := textext.d(t) ; enddef ;
+def step_cell_bot (expr b) = cells_b[nofcells] := textext.d(b) ; enddef ;
+def step_text_top (expr t) = texts_t[nofcells] := textext.d(t) ; enddef ;
+def step_text_mid (expr m) = texts_m[nofcells] := textext.d(m) ; enddef ;
+def step_text_bot (expr b) = texts_b[nofcells] := textext.d(b) ; enddef ;
+
+def step_begin_chart =
+ begingroup ;
+ initialize_step_variables ;
+ save nofcells ; numeric nofcells ; nofcells := 0 ;
+ save cells_t, cells_m, cells_b ; picture cells_t[], cells_m[], cells_b[] ;
+ save texts_t, texts_m, texts_b ; picture texts_t[], texts_m[], texts_b[] ;
+enddef ;
+
+def step_end_chart =
+ % we could combine some loops but this is cleaner
+ save dx, delta ; numeric dx, delta ;
+ save p ; path p ;
+ save one_row_only ; boolean one_row_only ;
+ save cell_t, next_t, text_t ; picture cell_t, next_t, text_t ;
+ save cell_m, next_m, text_m ; picture cell_m, next_m, text_m ;
+ save cell_b, next_b, text_b ; picture cell_b, next_b, text_b ;
+ save height_t, width_t, max_height_t, max_width_t ; numeric height_t, width_t, max_height_t, max_width_t ;
+ save height_m, width_m, max_height_m, max_width_m ; numeric height_m, width_m, max_height_m, max_width_m ;
+ save height_b, width_b, max_height_b, max_width_b ; numeric height_b, width_b, max_height_b, max_width_b ;
+ % check rows
+ one_row_only := true ;
+ for i=1 upto nofcells :
+ if bbwidth(cells_b[i]) > 0 :
+ one_row_only := false ;
+ fi ;
+ endfor ;
+ % swap and rotate
+ if chart_vertical :
+ if one_row_only :
+ % deal with mid_texts
+ max_width_t := max_width_m := max_width_b := 0 ;
+ for i=1 upto nofcells :
+ width_t := bbwidth(texts_t[i]) ;
+ width_m := bbwidth(texts_m[i]) ;
+ width_b := bbwidth(texts_b[i]) ;
+ if width_t > max_width_t : max_width_t := width_t fi ;
+ if width_m > max_width_m : max_width_m := width_m fi ;
+ if width_b > max_width_b : max_width_b := width_b fi ;
+ endfor ;
+ if max_width_m > 0 :
+ for i=1 upto nofcells :
+ text_t := texts_t[i] ; width_t := bbwidth(text_t) ;
+ text_m := texts_m[i] ; width_m := bbwidth(text_m) ;
+ text_b := texts_b[i] ; width_b := bbwidth(text_b) ;
+ if width_t < max_width_t :
+ setbounds text_t to boundingbox text_t leftenlarged (max_width_t - width_t) ;
+ fi ;
+ if width_m < max_width_m :
+ setbounds text_m to boundingbox text_m leftenlarged ((max_width_m - width_m)/2) ;
+ setbounds text_m to boundingbox text_m rightenlarged ((max_width_m - width_m)/2) ;
+ fi ;
+ if width_b < max_width_b :
+ setbounds text_b to boundingbox text_b rightenlarged (max_width_b - width_b) ;
+ fi ;
+ text_t := text_t shifted (- xpart llcorner text_t, 0) ;
+ text_m := text_m shifted (- xpart llcorner text_m, 0) ;
+ text_b := text_b shifted (- xpart llcorner text_b, 0) ;
+ texts_t[i] := image (
+ draw text_t ;
+ draw text_m shifted (max_width_t + text_distance_set,0) ;
+ draw text_b shifted (max_width_t + max_width_m + 2*text_distance_set,0) ;
+ ) rotated 90 ;
+ texts_m[i] := texts_b[i] := nullpicture ;
+ cells_t[i] := cells_t[i] rotated 90 ;
+ endfor ;
+ else :
+ for i=1 upto nofcells :
+ cells_t[i] := cells_t[i] rotated 90 ;
+ texts_t[i] := texts_t[i] rotated 90 ;
+ texts_b[i] := texts_b[i] rotated 90 ;
+ endfor ;
+ fi ;
+ else :
+ for i=1 upto nofcells :
+ cell_t := cells_t[i] ;
+ cell_b := cells_b[i] ;
+ cells_t[i] := cell_b rotated 90 ;
+ cells_b[i] := cell_t rotated 90 ;
+ text_t := texts_t[i] ;
+ text_b := texts_b[i] ;
+ texts_t[i] := text_b rotated 90 ;
+ texts_b[i] := text_t rotated 90 ;
+ endfor ;
+ fi ;
+ fi ;
+ % align horizontal
+ for i=1 upto nofcells :
+ cell_t := cells_t[i] ;
+ cell_b := cells_b[i] ;
+ width_t := bbwidth(cell_t) ;
+ width_b := bbwidth(cell_b) ;
+ if (width_t = 0) and (width_b = 0) :
+ % skip
+ elseif (width_t > 0) and (width_t < width_b) :
+ delta := (width_b-width_t)/2 ;
+ setbounds cell_t to boundingbox cell_t leftenlarged delta rightenlarged delta ;
+ cells_t[i] := cell_t ;
+ elseif (width_b > 0) and (width_t > width_b) :
+ delta := (width_t-width_b)/2 ;
+ setbounds cell_b to boundingbox cell_b leftenlarged delta rightenlarged delta ;
+ cells_b[i] := cell_b ;
+ fi ;
+ endfor ;
+ % analyze vertical
+ max_height_t := 0 ;
+ max_height_b := 0 ;
+ for i=1 upto nofcells :
+ cell_t := cells_t[i] ;
+ cell_b := cells_b[i] ;
+ height_t := bbheight(cell_t) ;
+ height_b := bbheight(cell_b) ;
+ if height_t > 0 :
+ setbounds cell_t to boundingbox cell_t enlarged cell_offset ;
+ height_t := height_t + 2 * cell_offset ;
+ cells_t[i] := cell_t ;
+ fi ;
+ if height_b > 0 :
+ setbounds cell_b to boundingbox cell_b enlarged cell_offset ;
+ height_b := height_b + 2 * cell_offset ;
+ cells_b[i] := cell_b ;
+ fi ;
+ if height_t > max_height_t :
+ max_height_t := height_t ;
+ fi
+ if height_b > max_height_b :
+ max_height_b := height_b ;
+ fi ;
+ endfor ;
+ % align vertical
+ for i=1 upto nofcells :
+ cell_t := cells_t[i] ;
+ cell_b := cells_b[i] ;
+ height_t := bbheight(cell_t) ;
+ height_b := bbheight(cell_b) ;
+ if height_t > 0 :
+ delta := (max_height_t-height_t)/2 ;
+ setbounds cell_t to boundingbox cell_t topenlarged delta bottomenlarged delta ;
+ fi ;
+ if height_b > 0 :
+ delta := (max_height_b-height_b)/2 ;
+ setbounds cell_b to boundingbox cell_b topenlarged delta bottomenlarged delta ;
+ fi ;
+ cells_t[i] := cell_t ;
+ cells_b[i] := cell_b ;
+ endfor ;
+ % position
+ dx := 0 ;
+ for i=1 upto nofcells :
+ cell_t := cells_t[i] ;
+ cell_b := cells_b[i] ;
+ cell_t := cell_t shifted -llcorner cell_t ;
+ cell_b := cell_b shifted -llcorner cell_b ;
+ cell_t := cell_t shifted (dx, 0) ;
+ cell_b := cell_b shifted (dx,-cell_distance_y-max_height_b) ;
+ cells_t[i] := cell_t ;
+ cells_b[i] := cell_b ;
+ width_t := bbwidth(cell_t) ;
+ width_b := bbwidth(cell_b) ;
+ if width_t > 0 :
+ dx := dx + cell_distance_x + width_t ;
+ elseif width_b > 0 :
+ dx := dx + cell_distance_x + width_b ;
+ fi ;
+ endfor ;
+ % flush
+ for i=1 upto nofcells :
+ cell_t := cells_t[i] ;
+ cell_b := cells_b[i] ;
+ width_t := bbwidth(cell_t) ;
+ width_b := bbwidth(cell_b) ;
+ if width_t > 0 :
+ fill boundingbox cell_t withcolor cell_fill_color ;
+ draw boundingbox cell_t withpen pencircle scaled cell_line_width withcolor cell_line_color ;
+ draw cell_t ;
+ fi ;
+ if width_b > 0 :
+ fill boundingbox cell_b withcolor cell_fill_color ;
+ draw boundingbox cell_b withpen pencircle scaled cell_line_width withcolor cell_line_color ;
+ draw cell_b ;
+ fi ;
+ endfor ;
+ %
+ def midtopboundary expr p = 0.5[ulcorner boundingbox p, urcorner boundingbox p] enddef ;
+ def midbottomboundary expr p = 0.5[llcorner boundingbox p, lrcorner boundingbox p] enddef ;
+ % draw top and bottom text boxes
+ for i=1 upto nofcells-1 :
+ text_t := texts_t[i] ;
+ text_b := texts_b[i] ;
+ if bbwidth(text_t) > 0 :
+ setbounds text_t to boundingbox text_t enlarged text_offset ;
+ texts_t[i] := text_t ;
+ fi ;
+ if bbwidth(text_b) > 0 :
+ setbounds text_b to boundingbox text_b enlarged text_offset ;
+ texts_b[i] := text_b ;
+ fi ;
+ endfor ;
+ % arrows
+ for i=1 upto nofcells-1 :
+ cell_t := cells_t[i] ;
+ cell_b := cells_b[i] ;
+ next_t := cells_t[i+1] ;
+ next_b := cells_b[i+1] ;
+ pair t_a, t_b, t_c, b_a, b_b, b_c ;
+ t_a := midtopboundary cell_t ;
+ t_b := midtopboundary next_t ;
+ t_c := (xpart 0.5[t_a,t_b], ypart t_a+line_height+line_distance) ;
+ if one_row_only :
+ b_a := midbottomboundary cell_t ;
+ b_b := midbottomboundary next_t ;
+ else :
+ b_a := midbottomboundary cell_b ;
+ b_b := midbottomboundary next_b ;
+ fi ;
+ b_c := (xpart 0.5[b_a,b_b], ypart b_a-line_height-line_distance) ;
+ texts_t[i] := thelabel.top(texts_t[i],t_c) ;
+ texts_b[i] := thelabel.bot(texts_b[i],b_c) ;
+ endfor ;
+ %
+ for i=1 upto nofcells-1 : % todo arrows when empty text
+ cell_t := cells_t[i] ;
+ cell_b := cells_b[i] ;
+ next_t := cells_t[i+1] ;
+ next_b := cells_b[i+1] ;
+ text_t := texts_t[i] ;
+ text_b := texts_b[i] ;
+ if bbwidth(text_t) > 0 :
+ if bbwidth(cell_t) > 0 :
+ drawarrow midtopboundary cell_t
+ shifted (if i > 1 : line_offset else : 0 fi, cell_line_width) {up} ..
+ midbottomboundary text_t shifted (0,-line_distance) ..
+ {down} midtopboundary next_t shifted(if i < nofcells - 1 : -line_offset else : 0 fi,cell_line_width)
+ withpen pencircle scaled line_line_width
+ withcolor line_line_color ;
+ else :
+ fi ;
+ fi ;
+ if bbwidth(text_b) > 0 :
+ if one_row_only :
+ cell_b := cell_t ;
+ next_b := next_t ;
+ fi ;
+ if bbwidth(cell_b) > 0 :
+ drawarrow midbottomboundary cell_b
+ shifted (if i > 1 : line_offset else : 0 fi, -cell_line_width) {down} ..
+ midtopboundary text_b shifted (0, line_distance) ..
+ {up} midbottomboundary next_b shifted (if i < nofcells - 1 : -line_offset else : 0 fi,-cell_line_width)
+ withpen pencircle scaled line_line_width
+ withcolor line_line_color ;
+ else :
+ fi ;
+ fi ;
+ endfor ;
+ % draw top and bottom text boxes
+ for i=1 upto nofcells-1 :
+ text_t := texts_t[i] ;
+ text_b := texts_b[i] ;
+ if bbwidth(text_t) > 0 :
+ fill boundingbox text_t withcolor text_fill_color ;
+ draw boundingbox text_t withpen pencircle scaled text_line_width withcolor text_line_color ;
+ draw text_t ;
+ fi ;
+ if bbwidth(text_b) > 0 :
+ fill boundingbox text_b withcolor text_fill_color ;
+ draw boundingbox text_b withpen pencircle scaled text_line_width withcolor text_line_color ;
+ draw text_b ;
+ fi ;
+ endfor ;
+ if chart_vertical :
+ % rotate back
+ currentpicture := currentpicture rotated -90 ;
+ fi ;
+ endgroup ;
+enddef ;
+
+% start_begin_step ;
+% step_cells ("\strut test 0", "\strut test 0") ;
+% step_cells ("\strut test 1", "\vbox{\hsize3cm \strut oeps 1\crlf oeps 1}") ;
+% step_texts ("\strut 1", "\strut 1") ;
+% step_cells ("\strut test 2", "\strut oeps 2 oeps 2") ;
+% step_cells ("\strut test X", "\strut test X") ;
+% step_texts ("\strut 2", "\strut 2") ;
+% step_cells ("\strut test 3", "\strut oeps 3 oeps 3") ;
+% step_texts ("\strut 3", "\strut 3") ;
+% step_cells ("\strut test 4", "\strut oeps 4 oeps 4") ;
+% step_texts ("\strut 4", "\strut 4") ;
+% stop_end_chart ;
diff --git a/Master/texmf-dist/metapost/context/base/mp-text.mp b/Master/texmf-dist/metapost/context/base/mp-text.mpii
index 60e16c09bbb..67dff15f9ce 100644
--- a/Master/texmf-dist/metapost/context/base/mp-text.mp
+++ b/Master/texmf-dist/metapost/context/base/mp-text.mpii
@@ -13,8 +13,7 @@
%D Under construction.
-if unknown context_tool : input mp-tool ; fi ;
-if known context_text : endinput ; fi ;
+if known context_text : endinput ; fi ;
boolean context_text ; context_text := true ;
diff --git a/Master/texmf-dist/metapost/context/base/mp-text.mpiv b/Master/texmf-dist/metapost/context/base/mp-text.mpiv
new file mode 100644
index 00000000000..c7bafeb8a06
--- /dev/null
+++ b/Master/texmf-dist/metapost/context/base/mp-text.mpiv
@@ -0,0 +1,163 @@
+%D \module
+%D [ file=mp-text.mp,
+%D version=2000.07.10,
+%D title=\CONTEXT\ \METAPOST\ graphics,
+%D subtitle=text support,
+%D author=Hans Hagen,
+%D date=\currentdate,
+%D copyright={PRAGMA / Hans Hagen \& Ton Otten}]
+%C
+%C This module is part of the \CONTEXT\ macro||package and is
+%C therefore copyrighted by \PRAGMA. See licen-en.pdf for
+%C details.
+
+%D This one is only used in metafun so it will become a module.
+
+if known context_text : endinput ; fi ;
+
+boolean context_text ; context_text := true ;
+
+def build_parshape (expr p, offset_or_path, dx, dy, baselineskip, strutheight, strutdepth, topskip) =
+
+ if unknown trace_parshape :
+ boolean trace_parshape ; trace_parshape := false ;
+ fi ;
+
+ begingroup ;
+
+ save
+ q, l, r, line, tt, bb,
+ n, hsize, vsize, vvsize, voffset, hoffset, width, indent,
+ ll, lll, rr, rrr, cp, cq, t, b ;
+
+ path
+ q, l, r, line, tt, bb ;
+ numeric
+ n, hsize, vsize, vvsize, voffset, hoffset, width[], indent[] ;
+ pair
+ ll, lll, rr, rrr, cp, cq, t, b ;
+
+ n := 0 ;
+ cp := center p ;
+
+ if path offset_or_path :
+ q := offset_or_path ;
+ cq := center q ;
+ voffset := dy ;
+ hoffset := dx ;
+ else :
+ q := p ;
+ cq := center q ;
+ hoffset := offset_or_path + dx ;
+ voffset := offset_or_path + dy ;
+ fi ;
+
+ hsize := xpart lrcorner q - xpart llcorner q ;
+ vsize := ypart urcorner q - ypart lrcorner q ;
+
+ q := p shifted - cp ;
+
+ startsavingdata ;
+
+ savedata "\global\parvoffset " & decimal voffset&"bp " ;
+ savedata "\global\parhoffset " & decimal hoffset&"bp " ;
+ savedata "\global\parwidth " & decimal hsize&"bp " ;
+ savedata "\global\parheight " & decimal vsize&"bp " ;
+
+ if not path offset_or_path :
+ q := q xscaled ((hsize-2hoffset)/hsize) yscaled ((vsize-2voffset)/vsize) ;
+ fi ;
+
+ hsize := xpart lrcorner q - xpart llcorner q ;
+ vsize := ypart urcorner q - ypart lrcorner q ;
+
+ t := (ulcorner q -- urcorner q) intersection_point q ;
+ b := (llcorner q -- lrcorner q) intersection_point q ;
+
+ if xpart directionpoint t of q < 0 :
+ q := reverse q ;
+ fi ;
+
+ l := q cutbefore t ;
+ l := l if xpart point 0 of q < 0 : & q fi cutafter b ;
+
+ r := q cutbefore b ;
+ r := r if xpart point 0 of q > 0 : & q fi cutafter t ;
+
+ % tt := (ulcorner q -- urcorner q) shifted (0,-topskip) ;
+ % bb := (llcorner q -- lrcorner q) shifted (0,strutdepth) ;
+
+ % l := l cutbefore (l intersection_point tt) ;
+ % l := l cutafter (l intersection_point bb) ;
+ % r := r cutbefore (r intersection_point bb) ;
+ % r := r cutafter (r intersection_point tt) ;
+
+ if trace_parshape :
+ drawarrow p withpen pencircle scaled 2pt withcolor red ;
+ drawarrow l shifted cp withpen pencircle scaled 1pt withcolor green ;
+ drawarrow r shifted cp withpen pencircle scaled 1pt withcolor blue ;
+ fi ;
+
+ vardef found_point (expr lin, pat, sig) =
+ pair a, b ;
+ a := pat intersection_point (lin shifted (0,strutheight)) ;
+ if intersection_found :
+ a := a shifted (0,-strutheight) ;
+ else :
+ a := pat intersection_point lin ;
+ fi ;
+ b := pat intersection_point (lin shifted (0,-strutdepth)) ;
+ if intersection_found :
+ if sig :
+ if xpart b > xpart a : a := b shifted (0,strutdepth) fi ;
+ else :
+ if xpart b < xpart a : a := b shifted (0,strutdepth) fi ;
+ fi ;
+ fi ;
+ a
+ enddef ;
+
+ if (strutheight+strutdepth<baselineskip) :
+ vvsize := vsize ;
+ else :
+ vvsize := (vsize div baselineskip) * baselineskip ;
+ fi ;
+
+ for i=topskip step baselineskip until vvsize :
+
+ line := (ulcorner q -- urcorner q) shifted (0,-i-eps) ;
+
+ ll := found_point(line,l,true ) ;
+ rr := found_point(line,r,false) ;
+
+ if trace_parshape :
+ fill (ll--rr--rr shifted (0,strutheight)--ll shifted (0,strutheight)--cycle) shifted cp withcolor .5white ;
+ fill (ll--rr--rr shifted (0,-strutdepth)--ll shifted (0,-strutdepth)--cycle) shifted cp withcolor .7white ;
+ draw ll shifted cp withpen pencircle scaled 2pt ;
+ draw rr shifted cp withpen pencircle scaled 2pt ;
+ draw (ll--rr) shifted cp withpen pencircle scaled .5pt ;
+ fi ;
+
+ n := n + 1 ;
+ indent[n] := abs(xpart ll - xpart llcorner q) ;
+ width[n] := abs(xpart rr - xpart ll) ;
+
+ if (i=strutheight) and (width[n]<baselineskip) :
+ n := n - 1 ;
+ savedata "\global\chardef\parfirst=1 " ;
+ fi ;
+
+ endfor ;
+
+ savedata "\global\parlines " & decimal n ;
+ savedata "\global\partoks{ " ;
+ for i=1 upto n:
+ savedata decimal indent[i]&"bp " & decimal width[i]&"bp " ;
+ endfor ;
+ savedata "}" ;
+
+ stopsavingdata ;
+
+ endgroup ;
+
+enddef ;
diff --git a/Master/texmf-dist/metapost/context/base/mp-tool.mp b/Master/texmf-dist/metapost/context/base/mp-tool.mpii
index 7f047fefcce..96932d58ab3 100644
--- a/Master/texmf-dist/metapost/context/base/mp-tool.mp
+++ b/Master/texmf-dist/metapost/context/base/mp-tool.mpii
@@ -85,10 +85,6 @@ mpprocset := 1 ;
%
% protect ;
-%D A semicolor to be used in specials: ? ? ?
-
-string semicolor ; semicolor := char 59 ;
-
%D By including this module, \METAPOST\ automatically writes a
%D high resolution boundingbox to the \POSTSCRIPT\ file. This
%D hack is due to John Hobby himself.
@@ -96,8 +92,6 @@ string semicolor ; semicolor := char 59 ;
% When somehow the first one gets no HiRes, then make sure
% that the format matches the mem sizes in the config file.
-% eerste " " er uit
-
string space ; space = char 32 ;
vardef ddecimal primary p =
@@ -132,18 +126,6 @@ cmykcolormodel := 7 ;
let grayscale = numeric ;
-% def colorlike(expr c) text v = % colorlike(a) b, c, d ;
-% forsuffixes i=v : % save i ;
-% if cmykcolor c :
-% cmykcolor i ;
-% elseif rgbcolor c :
-% rgbcolor i ;
-% else :
-% grayscale i ;
-% fi ;
-% endfor ;
-% enddef ;
-
vardef colorlike(text c) text v = % colorlike(a) b, c, d ;
save _p_ ; picture _p_ ;
forsuffixes i=v :
@@ -858,15 +840,15 @@ vardef bottomboundary primary p =
if pair p : p else : (llcorner p -- lrcorner p) fi
enddef ;
-vardef rightboundary primary p =
+vardef rightboundary primary p =
if pair p : p else : (lrcorner p -- urcorner p) fi
enddef ;
-vardef topboundary primary p =
+vardef topboundary primary p =
if pair p : p else : (urcorner p -- ulcorner p) fi
enddef ;
-vardef leftboundary primary p =
+vardef leftboundary primary p =
if pair p : p else : (ulcorner p -- llcorner p) fi
enddef ;
@@ -2131,19 +2113,28 @@ enddef ;
% handy
-vardef bbwidth (expr p) =
- (if known p :
- if path p or picture p :
- xpart (lrcorner p - llcorner p)
- else : 0 fi else : 0
- fi )
+vardef bbwidth (expr p) = % vardef width_of primary p =
+ if known p :
+ if path p or picture p :
+ xpart (lrcorner p - llcorner p)
+ else :
+ 0
+ fi
+ else :
+ 0
+ fi
enddef ;
-vardef bbheight (expr p) =
- (if known p : if path p or picture p :
- ypart (urcorner p - lrcorner p)
- else : 0 fi else : 0
- fi)
+vardef bbheight (expr p) = % vardef heigth_of primary p =
+ if known p :
+ if path p or picture p :
+ ypart (urcorner p - lrcorner p)
+ else :
+ 0
+ fi
+ else :
+ 0
+ fi
enddef ;
color nocolor ; numeric noline ; % both unknown signals
@@ -2262,7 +2253,7 @@ vardef simplified expr p =
(reverse dostraightened(+1,dostraightened(+1,reverse p)))
enddef ;
-vardef unspiked expr p =
+vardef unspiked expr p =
(reverse dostraightened(-1,dostraightened(-1,reverse p)))
enddef ;
@@ -2450,8 +2441,18 @@ enddef ;
% new
-vardef colorpart(expr i) =
- (redpart i, greenpart i,bluepart i)
+% vardef colorpart(expr i) =
+% (redpart i, greenpart i,bluepart i)
+% enddef ;
+
+vardef colorpart(expr c) =
+ if colormodel c = 3 :
+ graypart c
+ elseif colormodel c = 5 :
+ (redpart c,greenpart c,bluepart c)
+ elseif colormodel c = 7 :
+ (cyanpart c,magentapart c,yellowpart c,blackpart c)
+ fi
enddef ;
% for david arnold:
@@ -2561,7 +2562,3 @@ primarydef p snapped s =
fi ; )
p
enddef ;
-
-% done
-
-endinput ;
diff --git a/Master/texmf-dist/metapost/context/base/mp-tool.mpiv b/Master/texmf-dist/metapost/context/base/mp-tool.mpiv
new file mode 100644
index 00000000000..39449b511cf
--- /dev/null
+++ b/Master/texmf-dist/metapost/context/base/mp-tool.mpiv
@@ -0,0 +1,2183 @@
+%D \module
+%D [ file=mp-tool.mp,
+%D version=1998.02.15,
+%D title=\CONTEXT\ \METAPOST\ graphics,
+%D subtitle=auxiliary macros,
+%D author=Hans Hagen,
+%D date=\currentdate,
+%D copyright={PRAGMA / Hans Hagen \& Ton Otten}]
+%C
+%C This module is part of the \CONTEXT\ macro||package and is
+%C therefore copyrighted by \PRAGMA. See mreadme.pdf for
+%C details.
+
+if known context_tool : endinput ; fi ;
+
+boolean context_tool ; context_tool := true ;
+
+let @## = @# ;
+
+%D New, version number testing:
+%D
+%D \starttyping
+%D fill fullcircle scaled 2cm withcolor if mpversiongt("0.6") : red else : green fi ;
+%D fill fullcircle scaled 1cm withcolor if mpversionlt(0.6) : blue else : white fi ;
+%D \stoptyping
+
+if not known mpversion : string mpversion ; mpversion := "0.641" ; fi ;
+
+% vardef mpversiongt(expr s) =
+% scantokens (mpversion & " > " & if numeric s : decimal s else : s fi)
+% enddef ;
+% vardef mpversionlt(expr s) =
+% scantokens (mpversion & " < " & if numeric s : decimal s else : s fi)
+% enddef ;
+% vardef mpversioneq(expr s) =
+% scantokens (mpversion & " = " & if numeric s : decimal s else : s fi)
+% enddef ;
+
+%D More interesting:
+%D
+%D \starttyping
+%D fill fullcircle scaled 4cm withcolor if mpversiongt("0.6") : red else : green fi ;
+%D fill fullcircle scaled 2cm withcolor if mpversionlt(0.6) : blue else : white fi ;
+%D fill fullcircle scaled 1cm withcolor if mpversioncmp(0.6,">=") : yellow else : black fi ;
+%D \stoptyping
+
+% no longer needed as we load runtime
+
+vardef mpversioncmp(expr s, c) =
+ scantokens (mpversion & c & if numeric s : decimal s else : s fi)
+enddef ;
+
+vardef mpversionlt (expr s) = mpversioncmp(s, "<") enddef ;
+vardef mpversioneq (expr s) = mpversioncmp(s, "=") enddef ;
+vardef mpversiongt (expr s) = mpversioncmp(s, ">") enddef ;
+
+%D We always want \EPS\ conforming output, so we say:
+
+prologues := 1 ;
+warningcheck := 0 ;
+mpprocset := 1 ;
+
+%D Namespace handling:
+
+% let exclamationmark = ! ;
+% let questionmark = ? ;
+%
+% def unprotect =
+% let ! = relax ;
+% let ? = relax ;
+% enddef ;
+%
+% def protect =
+% let ! = exclamationmark ;
+% let ? = questionmark ;
+% enddef ;
+%
+% unprotect ;
+%
+% mp!some!module = 10 ; show mp!some!module ; show somemodule ;
+%
+% protect ;
+
+string space ; space := char 32 ;
+string CRLF ; CRLF := char 10 & char 13 ;
+
+vardef ddecimal primary p =
+ decimal xpart p & " " & decimal ypart p
+enddef ;
+
+%D Colors:
+
+newinternal nocolormodel ; nocolormodel := 1 ;
+newinternal greycolormodel ; greycolormodel := 3 ;
+newinternal graycolormodel ; graycolormodel := 3 ;
+newinternal rgbcolormodel ; rgbcolormodel := 5 ;
+newinternal cmykcolormodel ; cmykcolormodel := 7 ;
+
+let grayscale = numeric ;
+let greyscale = numeric ;
+
+vardef colorpart expr c =
+ if not picture c :
+ 0
+ elseif colormodel c = greycolormodel :
+ greypart c
+ elseif colormodel c = rgbcolormodel :
+ (redpart c,greenpart c,bluepart c)
+ elseif colormodel c = cmykcolormodel :
+ (cyanpart c,magentapart c,yellowpart c,blackpart c)
+ else :
+ 0 % black
+ fi
+enddef ;
+
+vardef colorlike(text c) text v = % colorlike(a) b, c, d ;
+ save _p_ ; picture _p_ ;
+ forsuffixes i=v :
+ _p_ := image(draw origin withcolor c ;) ; % intercept pre and postscripts
+ if (colormodel _p_ = cmykcolormodel) :
+ cmykcolor i ;
+ elseif (colormodel _p_ = rgbcolormodel) :
+ rgbcolor i ;
+ else :
+ greycolor i ;
+ fi ;
+ endfor ;
+enddef ;
+
+%D Also handy (when we flush colors):
+
+vardef dddecimal primary c =
+ decimal redpart c & " " & decimal greenpart c & " " & decimal bluepart c
+enddef ;
+
+vardef ddddecimal primary c =
+ decimal cyanpart c & " " & decimal magentapart c & " " & decimal yellowpart c & " " & decimal blackpart c
+enddef ;
+
+vardef colordecimals primary c =
+ if cmykcolor c :
+ decimal cyanpart c & ":" & decimal magentapart c & ":" & decimal yellowpart c & ":" & decimal blackpart c
+ elseif rgbcolor c :
+ decimal redpart c & ":" & decimal greenpart c & ":" & decimal bluepart c
+ else :
+ decimal c
+ fi
+enddef ;
+
+%D We have standardized data file names:
+
+def job_name =
+ jobname
+enddef ;
+
+def data_mpd_file =
+ job_name & "-mp.mpd"
+enddef ;
+
+%D Because \METAPOST\ has a hard coded limit of 4~datafiles,
+%D we need some trickery when we have multiple files.
+
+if unknown collapse_data :
+ boolean collapse_data ;
+ collapse_data := false ;
+fi ;
+
+boolean savingdata ; savingdata := false ;
+boolean savingdatadone ; savingdatadone := false ;
+
+def savedata expr txt =
+ write if collapse_data :
+ txt
+ else :
+ if savingdata : txt else : "\MPdata{" & decimal charcode & "}{" & txt & "}" fi & "%"
+ fi to data_mpd_file ;
+enddef ;
+
+def startsavingdata =
+ savingdata := true ;
+ savingdatadone := true ;
+ if collapse_data :
+ write "\MPdata{" & decimal charcode & "}{%" to data_mpd_file ;
+ fi ;
+enddef ;
+
+def stopsavingdata =
+ if collapse_data :
+ write "}%" to data_mpd_file ;
+ fi ;
+ savingdata := false ;
+enddef ;
+
+def finishsavingdata =
+ if savingdatadone :
+ write EOF to data_mpd_file ;
+ savingdatadone := false ;
+ fi ;
+enddef ;
+
+%D Instead of a keystroke eating save and allocation
+%D sequence, you can use the \citeer {new} alternatives to
+%D save and allocate in one command.
+
+def newcolor text v = forsuffixes i=v : save i ; color i ; endfor ; enddef ;
+def newnumeric text v = forsuffixes i=v : save i ; numeric i ; endfor ; enddef ;
+def newboolean text v = forsuffixes i=v : save i ; boolean i ; endfor ; enddef ;
+def newtransform text v = forsuffixes i=v : save i ; transform i ; endfor ; enddef ;
+def newpath text v = forsuffixes i=v : save i ; path i ; endfor ; enddef ;
+def newpicture text v = forsuffixes i=v : save i ; picture i ; endfor ; enddef ;
+def newstring text v = forsuffixes i=v : save i ; string i ; endfor ; enddef ;
+def newpair text v = forsuffixes i=v : save i ; pair i ; endfor ; enddef ;
+
+%D Sometimes we don't want parts of the graphics add to the
+%D bounding box. One way of doing this is to save the bounding
+%D box, draw the graphics that may not count, and restore the
+%D bounding box.
+%D
+%D \starttypen
+%D push_boundingbox currentpicture;
+%D pop_boundingbox currentpicture;
+%D \stoptypen
+%D
+%D The bounding box can be called with:
+%D
+%D \starttypen
+%D boundingbox currentpicture
+%D inner_boundingbox currentpicture
+%D outer_boundingbox currentpicture
+%D \stoptypen
+%D
+%D Especially the latter one can be of use when we include
+%D the graphic in a document that is clipped to the bounding
+%D box. In such occasions one can use:
+%D
+%D \starttypen
+%D set_outer_boundingbox currentpicture;
+%D \stoptypen
+%D
+%D Its counterpart is:
+%D
+%D \starttypen
+%D set_inner_boundingbox p
+%D \stoptypen
+
+path mfun_boundingbox_stack ;
+numeric mfun_boundingbox_stack_depth ;
+
+mfun_boundingbox_stack_depth := 0 ;
+
+def pushboundingbox text p =
+ mfun_boundingbox_stack_depth := mfun_boundingbox_stack_depth + 1 ;
+ mfun_boundingbox_stack[mfun_boundingbox_stack_depth] := boundingbox p ;
+enddef ;
+
+def popboundingbox text p =
+ setbounds p to mfun_boundingbox_stack[mfun_boundingbox_stack_depth] ;
+ mfun_boundingbox_stack[mfun_boundingbox_stack_depth] := origin ;
+ mfun_boundingbox_stack_depth := mfun_boundingbox_stack_depth - 1 ;
+enddef ;
+
+let push_boundingbox = pushboundingbox ; % downward compatible
+let pop_boundingbox = popboundingbox ; % downward compatible
+
+vardef boundingbox primary p =
+ if (path p) or (picture p) :
+ llcorner p -- lrcorner p -- urcorner p -- ulcorner p
+ else :
+ origin
+ fi -- cycle
+enddef;
+
+vardef innerboundingbox primary p =
+ top rt llcorner p --
+ top lft lrcorner p --
+ bot lft urcorner p --
+ bot rt ulcorner p -- cycle
+enddef;
+
+vardef outerboundingbox primary p =
+ bot lft llcorner p --
+ bot rt lrcorner p --
+ top rt urcorner p --
+ top lft ulcorner p -- cycle
+enddef;
+
+def inner_boundingbox = innerboundingbox enddef ;
+def outer_boundingbox = outerboundingbox enddef ;
+
+vardef set_inner_boundingbox text q = % obsolete
+ setbounds q to innerboundingbox q;
+enddef;
+
+vardef set_outer_boundingbox text q = % obsolete
+ setbounds q to outerboundingbox q;
+enddef;
+
+%D Some missing functions can be implemented rather
+%D straightforward:
+
+numeric Pi ; Pi := 3.1415926 ;
+
+vardef sqr primary x = x*x enddef ;
+vardef log primary x = if x=0: 0 else: mlog(x)/mlog(10) fi enddef ;
+vardef ln primary x = if x=0: 0 else: mlog(x)/256 fi enddef ;
+vardef exp primary x = (mexp 256)**x enddef ;
+vardef inv primary x = if x=0: 0 else: x**-1 fi enddef ;
+
+vardef pow (expr x,p) = x**p enddef ;
+
+vardef asin primary x = x+(x**3)/6+3(x**5)/40 enddef ;
+vardef acos primary x = asin(-x) enddef ;
+vardef atan primary x = x-(x**3)/3+(x**5)/5-(x**7)/7 enddef ;
+vardef tand primary x = sind(x)/cosd(x) enddef ;
+
+%D Here are Taco Hoekwater's alternatives (but vardef'd and primaried).
+
+pi := 3.1415926 ; radian := 180/pi ; % 2pi*radian = 360 ;
+
+vardef tand primary x = sind(x)/cosd(x) enddef ;
+vardef cotd primary x = cosd(x)/sind(x) enddef ;
+
+vardef sin primary x = sind(x*radian) enddef ;
+vardef cos primary x = cosd(x*radian) enddef ;
+vardef tan primary x = sin(x)/cos(x) enddef ;
+vardef cot primary x = cos(x)/sin(x) enddef ;
+
+vardef asin primary x = angle((1+-+x,x)) enddef ;
+vardef acos primary x = angle((x,1+-+x)) enddef ;
+
+vardef invsin primary x = (asin(x))/radian enddef ;
+vardef invcos primary x = (acos(x))/radian enddef ;
+
+vardef acosh primary x = ln(x+(x+-+1)) enddef ;
+vardef asinh primary x = ln(x+(x++1)) enddef ;
+
+vardef sinh primary x = save xx ; xx = exp x ; (xx-1/xx)/2 enddef ;
+vardef cosh primary x = save xx ; xx = exp x ; (xx+1/xx)/2 enddef ;
+
+%D We provide two macros for drawing stripes across a shape.
+%D The first method (with the n suffix) uses another method,
+%D slower in calculation, but more efficient when drawn. The
+%D first macro divides the sides into n equal parts. The
+%D first argument specifies the way the lines are drawn, while
+%D the second argument identifier the way the shape is to be
+%D drawn.
+%D
+%D \starttypen
+%D stripe_path_n
+%D (dashed evenly withcolor blue)
+%D (filldraw)
+%D fullcircle xscaled 100 yscaled 40 shifted (50,50) withpen pencircle scaled 4;
+%D \stoptypen
+%D
+%D The a (or angle) alternative supports arbitrary angles and
+%D is therefore more versatile.
+%D
+%D \starttypen
+%D stripe_path_a
+%D (withpen pencircle scaled 2 withcolor red)
+%D (draw)
+%D fullcircle xscaled 100 yscaled 40 withcolor blue;
+%D \stoptypen
+%D
+%D The first alternative obeys:
+
+stripe_n := 10;
+stripe_slot := 3;
+
+%D When no pen dimensions are passed, the slot determines
+%D the spacing.
+%D
+%D The angle alternative is influenced by:
+
+% to be redone: use image
+
+stripe_gap := 5;
+stripe_angle := 45;
+
+def stripe_path_n (text s_spec) (text s_draw) expr s_path =
+ do_stripe_path_n (s_spec) (s_draw) (s_path)
+enddef;
+
+def do_stripe_path_n (text s_spec) (text s_draw) (expr s_path) text s_text =
+ begingroup ;
+ save curpic, newpic, bb, pp, ww ;
+ picture curpic, newpic ;
+ path bb, pp ;
+ pp := s_path ;
+ curpic := currentpicture ;
+ currentpicture := nullpicture ;
+ s_draw pp s_text ;
+ bb := boundingbox currentpicture ;
+ newpic := currentpicture ;
+ currentpicture := nullpicture;
+ ww := min(ypart urcorner newpic - ypart llcorner newpic,xpart urcorner newpic - xpart llcorner newpic) ;
+ ww := ww/(stripe_slot*stripe_n) ;
+ for i=1/stripe_n step 1/stripe_n until 1 :
+ draw point (1+i) of bb -- point (3-i) of bb withpen pencircle scaled ww s_spec ;
+ endfor ;
+ for i=0 step 1/stripe_n until 1 :
+ draw point (3+i) of bb -- point (1-i) of bb withpen pencircle scaled ww s_spec;
+ endfor ;
+ clip currentpicture to pp ;
+ addto newpic also currentpicture ;
+ currentpicture := curpic ;
+ addto currentpicture also newpic ;
+ endgroup ;
+enddef ;
+
+def stripe_path_a (text s_spec) (text s_draw) expr s_path =
+ do_stripe_path_a (s_spec) (s_draw) (s_path)
+enddef;
+
+def do_stripe_path_a (text s_spec) (text s_draw) (expr s_path) text s_text =
+ begingroup ;
+ save curpic, newpic, pp; picture curpic, newpic; path pp ;
+ pp := s_path ;
+ curpic := currentpicture ;
+ currentpicture := nullpicture ;
+ s_draw pp s_text ;
+ def do_stripe_rotation (expr p) =
+ (currentpicture rotatedaround(center p,stripe_angle))
+ enddef ;
+ s_max := max (
+ xpart llcorner do_stripe_rotation(currentpicture),
+ xpart urcorner do_stripe_rotation(currentpicture),
+ ypart llcorner do_stripe_rotation(currentpicture),
+ ypart urcorner do_stripe_rotation(currentpicture)
+ ) ;
+ newpic := currentpicture ;
+ currentpicture := nullpicture ;
+ for i=-s_max-.5stripe_gap step stripe_gap until s_max :
+ draw (-s_max,i)--(s_max,i) s_spec ;
+ endfor ;
+ currentpicture := do_stripe_rotation(newpic) ;
+ clip currentpicture to pp ;
+ addto newpic also currentpicture ;
+ currentpicture := curpic ;
+ addto currentpicture also newpic ;
+ endgroup ;
+enddef;
+
+%D A few normalizing macros:
+
+primarydef p xsized w =
+ (p if (bbwidth (p)>0) and (w>0) : scaled (w/bbwidth (p)) fi)
+enddef ;
+
+primarydef p ysized h =
+ (p if (bbheight(p)>0) and (h>0) : scaled (h/bbheight(p)) fi)
+enddef ;
+
+primarydef p xysized s =
+ begingroup
+ save wh, w, h ; pair wh ; numeric w, h ;
+ wh := paired (s) ; w := bbwidth(p) ; h := bbheight(p) ;
+ p
+ if (w>0) and (h>0) :
+ if xpart wh > 0 : xscaled (xpart wh/w) fi
+ if ypart wh > 0 : yscaled (ypart wh/h) fi
+ fi
+ endgroup
+enddef ;
+
+let sized = xysized ;
+
+def xscale_currentpicture(expr w) = % obsolete
+ currentpicture := currentpicture xsized w ;
+enddef;
+
+def yscale_currentpicture(expr h) = % obsolete
+ currentpicture := currentpicture ysized h ;
+enddef;
+
+def xyscale_currentpicture(expr w, h) = % obsolete
+ currentpicture := currentpicture xysized (w,h) ;
+enddef;
+
+def scale_currentpicture(expr w, h) = % obsolete
+ currentpicture := currentpicture xsized w ;
+ currentpicture := currentpicture ysized h ;
+enddef;
+
+%D A full circle is centered at the origin, while a unitsquare
+%D is located in the first quadrant. Now guess what kind of
+%D path fullsquare and unitcircle do return.
+
+path fullsquare, unitcircle ;
+
+fullsquare := unitsquare shifted - center unitsquare ;
+unitcircle := fullcircle shifted urcorner fullcircle ;
+
+%D Some more paths:
+
+path urcircle, ulcircle, llcircle, lrcircle ;
+
+urcircle := origin -- (+.5,0) & (+.5,0){up} .. (0,+.5) & (0,+.5) -- cycle ;
+ulcircle := origin -- (0,+.5) & (0,+.5){left} .. (-.5,0) & (-.5,0) -- cycle ;
+llcircle := origin -- (-.5,0) & (-.5,0){down} .. (0,-.5) & (0,-.5) -- cycle ;
+lrcircle := origin -- (0,-.5) & (0,-.5){right} .. (+.5,0) & (+.5,0) -- cycle ;
+
+path tcircle, bcircle, lcircle, rcircle ;
+
+tcircle = origin -- (+.5,0) & (+.5,0) {up} .. (0,+.5) .. {down} (-.5,0) -- cycle ;
+bcircle = origin -- (-.5,0) & (-.5,0) {down} .. (0,-.5) .. {up} (+.5,0) -- cycle ;
+lcircle = origin -- (0,+.5) & (0,+.5) {left} .. (-.5,0) .. {right} (0,-.5) -- cycle ;
+rcircle = origin -- (0,-.5) & (0,-.5) {right} .. (+.5,0) .. {left} (0,+.5) -- cycle ;
+
+path urtriangle, ultriangle, lltriangle, lrtriangle ; % watch out: it's contrary to what you expect and starts in the origin
+
+urtriangle := origin -- (+.5,0) -- (0,+.5) -- cycle ;
+ultriangle := origin -- (0,+.5) -- (-.5,0) -- cycle ;
+lltriangle := origin -- (-.5,0) -- (0,-.5) -- cycle ;
+lrtriangle := origin -- (0,-.5) -- (+.5,0) -- cycle ;
+
+path unitdiamond, fulldiamond ;
+
+unitdiamond := (.5,0) -- (1,.5) -- (.5,1) -- (0,.5) -- cycle ;
+fulldiamond := unitdiamond shifted - center unitdiamond ;
+
+%D More robust:
+
+% let normalscaled = scaled ;
+% let normalxscaled = xscaled ;
+% let normalyscaled = yscaled ;
+%
+% def scaled expr s = normalscaled (s) enddef ;
+% def xscaled expr s = normalxscaled (s) enddef ;
+% def yscaled expr s = normalyscaled (s) enddef ;
+
+%D Shorter
+
+primarydef p xyscaled q = % secundarydef does not work out well
+ begingroup
+ save qq ; pair qq ;
+ qq = paired(q) ;
+ p
+ if xpart qq <> 0 : xscaled (xpart qq) fi
+ if ypart qq <> 0 : yscaled (ypart qq) fi
+ endgroup
+enddef ;
+
+%D Some personal code that might move to another module
+
+def set_grid(expr w, h, nx, ny) =
+ boolean grid[][] ; boolean grid_full ;
+ numeric grid_w, grid_h, grid_nx, grid_ny, grid_x, grid_y, grid_left ;
+ grid_w := w ;
+ grid_h := h ;
+ grid_nx := nx ;
+ grid_ny := ny ;
+ grid_x := round(w/grid_nx) ; % +.5) ;
+ grid_y := round(h/grid_ny) ; % +.5) ;
+ grid_left := (1+grid_x)*(1+grid_y) ;
+ grid_full := false ;
+ for i=0 upto grid_x :
+ for j=0 upto grid_y :
+ grid[i][j] := false ;
+ endfor ;
+ endfor ;
+enddef ;
+
+vardef new_on_grid(expr _dx_, _dy_) =
+ dx := _dx_ ;
+ dy := _dy_ ;
+ ddx := min(round(dx/grid_nx),grid_x) ; % +.5),grid_x) ;
+ ddy := min(round(dy/grid_ny),grid_y) ; % +.5),grid_y) ;
+ if not grid_full and not grid[ddx][ddy] :
+ grid[ddx][ddy] := true ;
+ grid_left := grid_left-1 ;
+ grid_full := (grid_left=0) ;
+ true
+ else :
+ false
+ fi
+enddef ;
+
+%D usage: \type{innerpath peepholed outerpath}.
+%D
+%D beginfig(1);
+%D def fullsquare = (unitsquare shifted -center unitsquare) enddef ;
+%D fill (fullsquare scaled 200) withcolor red ;
+%D path p ; p := (fullcircle scaled 100) ; bboxmargin := 0 ;
+%D fill p peepholed bbox p ;
+%D endfig;
+
+secondarydef p peepholed q =
+ begingroup
+ save start ; pair start ;
+ start := point 0 of p ;
+ if xpart start >= xpart center p :
+ if ypart start >= ypart center p :
+ urcorner q -- ulcorner q -- llcorner q -- lrcorner q --
+ reverse p -- lrcorner q -- cycle
+ else :
+ lrcorner q -- urcorner q -- ulcorner q -- llcorner q --
+ reverse p -- llcorner q -- cycle
+ fi
+ else :
+ if ypart start > ypart center p :
+ ulcorner q -- llcorner q -- lrcorner q -- urcorner q --
+ reverse p -- urcorner q -- cycle
+ else :
+ llcorner q -- lrcorner q -- urcorner q -- ulcorner q --
+ reverse p -- ulcorner q -- cycle
+ fi
+ fi
+ endgroup
+enddef ;
+
+boolean intersection_found ;
+
+secondarydef p intersection_point q =
+ begingroup
+ save x_, y_ ;
+ (x_,y_) = p intersectiontimes q ;
+ if x_<0 :
+ intersection_found := false ;
+ center p % origin
+ else :
+ intersection_found := true ;
+ .5[point x_ of p, point y_ of q]
+ fi
+ endgroup
+enddef ;
+
+%D New, undocumented, experimental:
+
+vardef tensecircle (expr width, height, offset) =
+ (-width/2,-height/2) ... (0,-height/2-offset) ...
+ (+width/2,-height/2) ... (+width/2+offset,0) ...
+ (+width/2,+height/2) ... (0,+height/2+offset) ...
+ (-width/2,+height/2) ... (-width/2-offset,0) ... cycle
+enddef ;
+
+vardef roundedsquare (expr width, height, offset) =
+ (offset,0) -- (width-offset,0) {right} ..
+ (width,offset) -- (width,height-offset) {up} ..
+ (width-offset,height) -- (offset,height) {left} ..
+ (0,height-offset) -- (0,offset) {down} .. cycle
+enddef ;
+
+%D Some colors.
+
+def colortype(expr c) =
+ if cmykcolor c : cmykcolor elseif rgbcolor c : rgbcolor else : grayscale fi
+enddef ;
+
+vardef whitecolor(expr c) =
+ if cmykcolor c : (0,0,0,0) elseif rgbcolor c : (1,1,1) else : 1 fi
+enddef ;
+
+vardef blackcolor(expr c) =
+ if cmykcolor c : (0,0,0,1) elseif rgbcolor c : (0,0,0) else : 0 fi
+enddef ;
+
+%D Well, this is the dangerous and naive version:
+
+def drawfill text t =
+ fill t ;
+ draw t ;
+enddef;
+
+%D This two step approach saves the path first, since it can
+%D be a function. Attributes must not be randomized.
+
+def drawfill expr c =
+ path _c_ ; _c_ := c ;
+ mfun_do_drawfill
+enddef ;
+
+def mfun_do_drawfill text t =
+ draw _c_ t ;
+ fill _c_ t ;
+enddef;
+
+def undrawfill expr c =
+ drawfill c withcolor background % rather useless
+enddef ;
+
+%D Moved from mp-char.mp
+
+vardef paired primary d =
+ if pair d : d else : (d,d) fi
+enddef ;
+
+vardef tripled primary d =
+ if color d : d else : (d,d,d) fi
+enddef ;
+
+% maybe secondaries:
+
+primarydef p enlarged d = ( p llmoved d -- p lrmoved d -- p urmoved d -- p ulmoved d -- cycle ) enddef ;
+primarydef p llenlarged d = ( p llmoved d -- lrcorner p -- urcorner p -- ulcorner p -- cycle ) enddef ;
+primarydef p lrenlarged d = ( llcorner p -- p lrmoved d -- urcorner p -- ulcorner p -- cycle ) enddef ;
+primarydef p urenlarged d = ( llcorner p -- lrcorner p -- p urmoved d -- ulcorner p -- cycle ) enddef ;
+primarydef p ulenlarged d = ( llcorner p -- lrcorner p -- urcorner p -- p ulmoved d -- cycle ) enddef ;
+
+primarydef p llmoved d = ( (llcorner p) shifted (-xpart paired(d),-ypart paired(d)) ) enddef ;
+primarydef p lrmoved d = ( (lrcorner p) shifted (+xpart paired(d),-ypart paired(d)) ) enddef ;
+primarydef p urmoved d = ( (urcorner p) shifted (+xpart paired(d),+ypart paired(d)) ) enddef ;
+primarydef p ulmoved d = ( (ulcorner p) shifted (-xpart paired(d),+ypart paired(d)) ) enddef ;
+
+primarydef p leftenlarged d = ( (llcorner p) shifted (-d,0) -- lrcorner p -- urcorner p -- (ulcorner p) shifted (-d,0) -- cycle ) enddef ;
+primarydef p rightenlarged d = ( llcorner p -- (lrcorner p) shifted (d,0) -- (urcorner p) shifted (d,0) -- ulcorner p -- cycle ) enddef ;
+primarydef p topenlarged d = ( llcorner p -- lrcorner p -- (urcorner p) shifted (0,d) -- (ulcorner p) shifted (0,d) -- cycle ) enddef ;
+primarydef p bottomenlarged d = ( llcorner p shifted (0,-d) -- lrcorner p shifted (0,-d) -- urcorner p -- ulcorner p -- cycle ) enddef ;
+
+%D Handy for testing/debugging:
+
+primarydef p crossed d = (
+ if pair p :
+ p shifted (-d, 0) -- p --
+ p shifted ( 0,-d) -- p --
+ p shifted (+d, 0) -- p --
+ p shifted ( 0,+d) -- p -- cycle
+ else :
+ center p shifted (-d, 0) -- llcorner p --
+ center p shifted ( 0,-d) -- lrcorner p --
+ center p shifted (+d, 0) -- urcorner p --
+ center p shifted ( 0,+d) -- ulcorner p -- cycle
+ fi
+) enddef ;
+
+%D Also handy (math ladders):
+
+vardef laddered primary p = % was expr
+ point 0 of p
+ for i=1 upto length(p) :
+ -- (xpart (point i of p), ypart (point (i-1) of p)) -- (point i of p)
+ endfor
+enddef ;
+
+%D Saves typing:
+
+% vardef bottomboundary primary p = (llcorner p -- lrcorner p) enddef ;
+% vardef rightboundary primary p = (lrcorner p -- urcorner p) enddef ;
+% vardef topboundary primary p = (urcorner p -- ulcorner p) enddef ;
+% vardef leftboundary primary p = (ulcorner p -- llcorner p) enddef ;
+
+vardef bottomboundary primary p = if pair p : p else : (llcorner p -- lrcorner p) fi enddef ;
+vardef rightboundary primary p = if pair p : p else : (lrcorner p -- urcorner p) fi enddef ;
+vardef topboundary primary p = if pair p : p else : (urcorner p -- ulcorner p) fi enddef ;
+vardef leftboundary primary p = if pair p : p else : (ulcorner p -- llcorner p) fi enddef ;
+
+%D Nice too:
+
+primarydef p superellipsed s =
+ superellipse (
+ .5[lrcorner p,urcorner p],
+ .5[urcorner p,ulcorner p],
+ .5[ulcorner p,llcorner p],
+ .5[llcorner p,lrcorner p],
+ s
+ )
+enddef ;
+
+primarydef p squeezed s = (
+ (llcorner p .. .5[llcorner p,lrcorner p] shifted ( 0, ypart paired(s)) .. lrcorner p) &
+ (lrcorner p .. .5[lrcorner p,urcorner p] shifted (-xpart paired(s), 0) .. urcorner p) &
+ (urcorner p .. .5[urcorner p,ulcorner p] shifted ( 0,-ypart paired(s)) .. ulcorner p) &
+ (ulcorner p .. .5[ulcorner p,llcorner p] shifted ( xpart paired(s), 0) .. llcorner p) & cycle
+) enddef ;
+
+primarydef p randomshifted s =
+ begingroup ;
+ save ss ; pair ss ;
+ ss := paired(s) ;
+ p shifted (-.5xpart ss + uniformdeviate xpart ss,-.5ypart ss + uniformdeviate ypart ss)
+ endgroup
+enddef ;
+
+primarydef p randomized s = (
+ if path p :
+ for i=0 upto length(p)-1 :
+ ((point i of p) randomshifted s) .. controls
+ ((postcontrol i of p) randomshifted s) and
+ ((precontrol (i+1) of p) randomshifted s) ..
+ endfor
+ if cycle p :
+ cycle
+ else :
+ ((point length(p) of p) randomshifted s)
+ fi
+ elseif pair p :
+ p randomshifted s
+ elseif cmykcolor p :
+ if color s :
+ (uniformdeviate cyanpart s * cyanpart p,
+ uniformdeviate magentapart s * magentapart p,
+ uniformdeviate yellowpart s * yellowpart p,
+ uniformdeviate blackpart s * blackpart p)
+ elseif pair s :
+ ((xpart s + uniformdeviate (ypart s - xpart s)) * p)
+ else :
+ (uniformdeviate s * p)
+ fi
+ elseif rgbcolor p :
+ if color s :
+ (uniformdeviate redpart s * redpart p,
+ uniformdeviate greenpart s * greenpart p,
+ uniformdeviate bluepart s * bluepart p)
+ elseif pair s :
+ ((xpart s + uniformdeviate (ypart s - xpart s)) * p)
+ else :
+ (uniformdeviate s * p)
+ fi
+ elseif color p :
+ if color s :
+ (uniformdeviate greypart s * greypart p)
+ elseif pair s :
+ ((xpart s + uniformdeviate (ypart s - xpart s)) * p)
+ else :
+ (uniformdeviate s * p)
+ fi
+ else :
+ p + uniformdeviate s
+ fi
+) enddef ;
+
+%D Not perfect (alternative for interpath)
+
+vardef interpolated(expr s, p, q) =
+ save m ; numeric m ;
+ m := max(length(p),length(q)) ;
+ if path p :
+ for i=0 upto m-1 :
+ s[point (i /m) along p,point (i /m) along q] .. controls
+ s[postcontrol (i /m) along p,postcontrol (i /m) along q] and
+ s[precontrol ((i+1)/m) along p,precontrol ((i+1)/m) along q] ..
+ endfor
+ if cycle p :
+ cycle
+ else :
+ s[point infinity of p,point infinity of q]
+ fi
+ else :
+ a[p,q]
+ fi
+enddef ;
+
+%D Interesting too:
+
+primarydef p paralleled d = (
+ p shifted if d < 0 : - fi ((point abs(d) on (p rotatedaround(point 0 of p,90))) - point 0 of p)
+) enddef ;
+
+vardef punked primary p =
+ point 0 of p for i=1 upto length(p)-1 : -- point i of p endfor
+ if cycle p : -- cycle else : -- point length(p) of p fi
+enddef ;
+
+vardef curved primary p =
+ point 0 of p for i=1 upto length(p)-1 : .. point i of p endfor
+ if cycle p : .. cycle else : .. point length(p) of p fi
+enddef ;
+
+primarydef p blownup s =
+ begingroup
+ save _p_ ; path _p_ ;
+ _p_ := p xysized (bbwidth(p)+2(xpart paired(s)),bbheight(p)+2(ypart paired(s))) ;
+ (_p_ shifted (center p - center _p_))
+ endgroup
+enddef ;
+
+%D Rather fundamental.
+
+% not yet ok
+
+vardef leftrightpath(expr p, l) = % used in s-pre-19
+ save q, r, t, b ; path q, r ; pair t, b ;
+ t := (ulcorner p -- urcorner p) intersection_point p ;
+ b := (llcorner p -- lrcorner p) intersection_point p ;
+ r := if xpart directionpoint t of p < 0 : reverse p else : p fi ; % r is needed, else problems when reverse is fed
+ q := r cutbefore if l: t else: b fi ;
+ q := q if xpart point 0 of r > 0 : & r fi cutafter if l: b else: t fi ;
+ q
+enddef ;
+
+vardef leftpath expr p = leftrightpath(p,true ) enddef ;
+vardef rightpath expr p = leftrightpath(p,false) enddef ;
+
+%D Drawoptions
+
+def saveoptions =
+ save _op_ ; def _op_ = enddef ;
+enddef ;
+
+%D Tracing. (not yet in lexer)
+
+let normaldraw = draw ;
+let normalfill = fill ;
+
+% bugged in mplib so ...
+
+def normalfill expr c = addto currentpicture contour c _op_ enddef ;
+def normaldraw expr p = addto currentpicture if picture p: also p else: doublepath p withpen currentpen fi _op_ enddef ;
+
+def drawlineoptions (text t) = def _lin_opt_ = t enddef ; enddef ;
+def drawpointoptions (text t) = def _pnt_opt_ = t enddef ; enddef ;
+def drawcontroloptions(text t) = def _ctr_opt_ = t enddef ; enddef ;
+def drawlabeloptions (text t) = def _lab_opt_ = t enddef ; enddef ;
+def draworiginoptions (text t) = def _ori_opt_ = t enddef ; enddef ;
+def drawboundoptions (text t) = def _bnd_opt_ = t enddef ; enddef ;
+def drawpathoptions (text t) = def _pth_opt_ = t enddef ; enddef ;
+
+def resetdrawoptions =
+ drawlineoptions (withpen pencircle scaled 1pt withcolor .5white) ;
+ drawpointoptions (withpen pencircle scaled 4pt withcolor black) ;
+ drawcontroloptions(withpen pencircle scaled 2.5pt withcolor black) ;
+ drawlabeloptions () ;
+ draworiginoptions (withpen pencircle scaled 1pt withcolor .5white) ;
+ drawboundoptions (dashed evenly _ori_opt_) ;
+ drawpathoptions (withpen pencircle scaled 5pt withcolor .8white) ;
+enddef ;
+
+resetdrawoptions ;
+
+%D Path.
+
+def drawpath expr p =
+ normaldraw p _pth_opt_
+enddef ;
+
+%D Arrow.
+
+vardef drawarrowpath expr p =
+ save autoarrows ; boolean autoarrows ; autoarrows := true ;
+ drawarrow p _pth_opt_
+enddef ;
+
+def midarrowhead expr p =
+ arrowhead p cutafter (point length(p cutafter point .5 along p)+ahlength on p)
+enddef ;
+
+vardef arrowheadonpath (expr p, s) =
+ save autoarrows ; boolean autoarrows ;
+ autoarrows := true ;
+ set_ahlength(scaled ahfactor) ; % added
+ arrowhead p if s<1 : cutafter (point (s*arclength(p)+.5ahlength) on p) fi
+enddef ;
+
+%D Points.
+
+def drawpoint expr c =
+ if string c :
+ string _c_ ;
+ _c_ := "(" & c & ")" ;
+ dotlabel.urt(_c_, scantokens _c_) ;
+ drawdot scantokens _c_
+ else :
+ dotlabel.urt("(" & decimal xpart c & "," & decimal ypart c & ")", c) ;
+ drawdot c
+ fi _pnt_opt_
+enddef ;
+
+%D PathPoints.
+
+def drawpoints expr c = path _c_ ; _c_ := c ; mfun_draw_points enddef ;
+def drawcontrolpoints expr c = path _c_ ; _c_ := c ; mfun_draw_controlpoints enddef ;
+def drawcontrollines expr c = path _c_ ; _c_ := c ; mfun_draw_controllines enddef ;
+def drawpointlabels expr c = path _c_ ; _c_ := c ; mfun_draw_pointlabels enddef ;
+
+def mfun_draw_points text t =
+ for _i_=0 upto length(_c_) :
+ normaldraw point _i_ of _c_ _pnt_opt_ t ;
+ endfor ;
+enddef;
+
+def mfun_draw_controlpoints text t =
+ for _i_=0 upto length(_c_) :
+ normaldraw precontrol _i_ of _c_ _ctr_opt_ t ;
+ normaldraw postcontrol _i_ of _c_ _ctr_opt_ t ;
+ endfor ;
+enddef;
+
+def mfun_draw_controllines text t =
+ for _i_=0 upto length(_c_) :
+ normaldraw point _i_ of _c_ -- precontrol _i_ of _c_ _lin_opt_ t ;
+ normaldraw point _i_ of _c_ -- postcontrol _i_ of _c_ _lin_opt_ t ;
+ endfor ;
+enddef;
+
+boolean swappointlabels ; swappointlabels := false ;
+
+def mfun_draw_pointlabels text t =
+ for _i_=0 upto length(_c_) :
+ pair _u_ ; _u_ := unitvector(direction _i_ of _c_) rotated if swappointlabels : - fi 90 ;
+ pair _p_ ; _p_ := (point _i_ of _c_) ;
+ _u_ := 12 * defaultscale * _u_ ;
+ normaldraw thelabel ( decimal _i_, _p_ shifted if cycle _c_ and (_i_=0) : - fi _u_ ) _lab_opt_ t ;
+ endfor ;
+enddef;
+
+%D Bounding box.
+
+def drawboundingbox expr p =
+ normaldraw boundingbox p _bnd_opt_
+enddef ;
+
+%D Origin.
+
+numeric originlength ; originlength := .5cm ;
+
+def draworigin text t =
+ normaldraw (origin shifted (0, originlength) -- origin shifted (0,-originlength)) _ori_opt_ t ;
+ normaldraw (origin shifted ( originlength,0) -- origin shifted (-originlength,0)) _ori_opt_ t ;
+enddef;
+
+%D Axis.
+
+numeric tickstep ; tickstep := 5mm ;
+numeric ticklength ; ticklength := 2mm ;
+
+def drawxticks expr c = path _c_ ; _c_ := c ; mfun_draw_xticks enddef ;
+def drawyticks expr c = path _c_ ; _c_ := c ; mfun_draw_yticks enddef ;
+def drawticks expr c = path _c_ ; _c_ := c ; mfun_draw_ticks enddef ;
+
+% Adding eps prevents disappearance due to rounding errors.
+
+def mfun_draw_xticks text t =
+ for i=0 step -tickstep until xpart llcorner _c_ - eps :
+ if (i<=xpart lrcorner _c_) :
+ normaldraw (i,-ticklength)--(i,ticklength) _ori_opt_ t ;
+ fi ;
+ endfor ;
+ for i=0 step tickstep until xpart lrcorner _c_ + eps :
+ if (i>=xpart llcorner _c_) :
+ normaldraw (i,-ticklength)--(i,ticklength) _ori_opt_ t ;
+ fi ;
+ endfor ;
+ normaldraw (llcorner _c_ -- ulcorner _c_) shifted (-xpart llcorner _c_,0) _ori_opt_ t ;
+enddef ;
+
+def mfun_draw_yticks text t =
+ for i=0 step -tickstep until ypart llcorner _c_ - eps :
+ if (i<=ypart ulcorner _c_) :
+ normaldraw (-ticklength,i)--(ticklength,i) _ori_opt_ t ;
+ fi ;
+ endfor ;
+ for i=0 step tickstep until ypart ulcorner _c_ + eps :
+ if (i>=ypart llcorner _c_) :
+ normaldraw (-ticklength,i)--(ticklength,i) _ori_opt_ t ;
+ fi ;
+ endfor ;
+ normaldraw (llcorner _c_ -- lrcorner _c_) shifted (0,-ypart llcorner _c_) _ori_opt_ t ;
+enddef ;
+
+def mfun_draw_ticks text t =
+ drawxticks _c_ t ;
+ drawyticks _c_ t ;
+enddef ;
+
+%D All of it except axis.
+
+def drawwholepath expr p =
+ draworigin ;
+ drawpath p ;
+ drawcontrollines p ;
+ drawcontrolpoints p ;
+ drawpoints p ;
+ drawboundingbox p ;
+ drawpointlabels p ;
+enddef ;
+
+%D Tracing.
+
+def visualizeddraw expr c =
+ if picture c : normaldraw c else : path _c_ ; _c_ := c ; do_visualizeddraw fi
+enddef ;
+
+def visualizedfill expr c =
+ if picture c : normalfill c else : path _c_ ; _c_ := c ; do_visualizedfill fi
+enddef ;
+
+def do_visualizeddraw text t =
+ draworigin ;
+ drawpath _c_ t ;
+ drawcontrollines _c_ ;
+ drawcontrolpoints _c_ ;
+ drawpoints _c_ ;
+ drawboundingbox _c_ ;
+ drawpointlabels _c_ ;
+enddef ;
+
+def do_visualizedfill text t =
+ if cycle _c_ : normalfill _c_ t fi ;
+ draworigin ;
+ drawcontrollines _c_ ;
+ drawcontrolpoints _c_ ;
+ drawpoints _c_ ;
+ drawboundingbox _c_ ;
+ drawpointlabels _c_ ;
+enddef ;
+
+def visualizepaths =
+ let fill = visualizedfill ;
+ let draw = visualizeddraw ;
+enddef ;
+
+def naturalizepaths =
+ let fill = normalfill ;
+ let draw = normaldraw ;
+enddef ;
+
+extra_endfig := extra_endfig & " naturalizepaths ; " ;
+
+%D Noce tracer:
+
+def drawboundary primary p =
+ draw p dashed evenly withcolor white ;
+ draw p dashed oddly withcolor black ;
+ draw (- llcorner p) withpen pencircle scaled 3 withcolor white ;
+ draw (- llcorner p) withpen pencircle scaled 1.5 withcolor black ;
+enddef ;
+
+%D Also handy:
+
+extra_beginfig := extra_beginfig & " truecorners := 0 ; " ; % restores
+extra_beginfig := extra_beginfig & " miterlimit := 10 ; " ; % restores
+extra_beginfig := extra_beginfig & " linejoin := rounded ; " ; % restores
+extra_beginfig := extra_beginfig & " linecap := rounded ; " ; % restores
+
+%D Normally, arrowheads don't scale well. So we provide a
+%D hack.
+
+boolean autoarrows ; autoarrows := false ;
+numeric ahfactor ; ahfactor := 2.5 ;
+
+def set_ahlength (text t) =
+ % ahlength := (ahfactor*pen_size(_op_ t)) ; % _op_ added
+ % problem: _op_ can contain color so a no-go, we could apply the transform
+ % but i need to figure out the best way (fakepicture and take components).
+ ahlength := (ahfactor*pen_size(t)) ;
+enddef ;
+
+vardef pen_size (text t) =
+ save p ; picture p ; p := nullpicture ;
+ addto p doublepath (top origin -- bot origin) t ;
+ (ypart urcorner p - ypart lrcorner p)
+enddef ;
+
+%D The next two macros are adapted versions of plain
+%D \METAPOST\ definitions.
+
+vardef arrowpath expr p = % patch by Peter Rolf: supports squared pen and shifting (hh: maybe just use center of head as first)
+ (p cutafter makepath(pencircle scaled 2(ahlength*cosd(.5ahangle)) shifted point length p of p))
+enddef;
+
+% def _finarr text t =
+% if autoarrows : set_ahlength (t) fi ;
+% draw arrowpath _apth t ; % arrowpath added
+% filldraw arrowhead _apth t ;
+% enddef;
+
+def _finarr text t =
+ if autoarrows : set_ahlength (t) fi ;
+ draw arrowpath _apth t ; % arrowpath added
+ fill arrowhead _apth t ;
+ draw arrowhead _apth t ;
+enddef;
+
+def _findarr text t =
+ if autoarrows : set_ahlength (t) fi ;
+ draw arrowpath _apth t ;
+ fill arrowhead _apth withpen currentpen t ;
+ fill arrowhead reverse _apth withpen currentpen t ;
+enddef ;
+
+%D Handy too ......
+
+vardef pointarrow (expr pat, loc, len, off) =
+ save l, r, s, t ; path l, r ; numeric s ; pair t ;
+ t := if pair loc : loc else : point loc along pat fi ;
+ s := len/2 - off ; if s<=0 : s := 0 elseif s>len : s := len fi ;
+ r := pat cutbefore t ;
+ r := (r cutafter point (arctime s of r) of r) ;
+ s := len/2 + off ; if s<=0 : s := 0 elseif s>len : s := len fi ;
+ l := reverse (pat cutafter t) ;
+ l := (reverse (l cutafter point (arctime s of l) of l)) ;
+ (l..r)
+enddef ;
+
+def rightarrow (expr pat,tim,len) = pointarrow(pat,tim,len,-len) enddef ;
+def leftarrow (expr pat,tim,len) = pointarrow(pat,tim,len,+len) enddef ;
+def centerarrow (expr pat,tim,len) = pointarrow(pat,tim,len, 0) enddef ;
+
+%D The \type {along} and \type {on} operators can be used
+%D as follows:
+%D
+%D \starttypen
+%D drawdot point .5 along somepath ;
+%D drawdot point 3cm on somepath ;
+%D \stoptypen
+%D
+%D The number denotes a percentage (fraction).
+
+primarydef pct along pat = % also negative
+ (arctime (pct * (arclength pat)) of pat) of pat
+enddef ;
+
+primarydef len on pat = % no outer ( ) .. somehow fails
+ (arctime if len>0 : len else : (arclength(pat)+len) fi of pat) of pat
+enddef ;
+
+% this cuts of a piece from both ends
+
+tertiarydef pat cutends len =
+ begingroup
+ save tap ; path tap ;
+ tap := pat cutbefore (point (xpart paired(len)) on pat) ;
+ (tap cutafter (point -(ypart paired(len)) on tap))
+ endgroup
+enddef ;
+
+%D To be documented.
+
+path freesquare ;
+
+freesquare := (
+ (-1,0) -- (-1,-1) -- (0,-1) -- (+1,-1) --
+ (+1,0) -- (+1,+1) -- (0,+1) -- (-1,+1) -- cycle
+) scaled .5 ;
+
+numeric freelabeloffset ; freelabeloffset := 3pt ;
+numeric freedotlabelsize ; freedotlabelsize := 3pt ;
+
+vardef thefreelabel (expr str, loc, ori) =
+ save s, p, q, l ; picture s ; path p, q ; pair l ;
+ interim labeloffset := freelabeloffset ;
+ s := if string str : thelabel(str,loc) else : str shifted -center str shifted loc fi ;
+ setbounds s to boundingbox s enlarged freelabeloffset ;
+ p := fullcircle scaled (2*length(loc-ori)) shifted ori ;
+ q := freesquare xyscaled (urcorner s - llcorner s) ;
+ l := point xpart (p intersectiontimes (ori--loc shifted (loc-ori))) of q ;
+ setbounds s to boundingbox s enlarged -freelabeloffset ; % new
+ % draw boundingbox s shifted -l withpen pencircle scaled .5pt withcolor red ;
+ (s shifted -l)
+enddef ;
+
+vardef freelabel (expr str, loc, ori) =
+ draw thefreelabel(str,loc,ori) ;
+enddef ;
+
+vardef freedotlabel (expr str, loc, ori) =
+ interim linecap := rounded ;
+ draw loc withpen pencircle scaled freedotlabelsize ;
+ draw thefreelabel(str,loc,ori) ;
+enddef ;
+
+%D \starttypen
+%D drawarrow anglebetween(line_a,line_b,somelabel) ;
+%D \stoptypen
+
+newinternal angleoffset ; angleoffset := 0pt ;
+newinternal anglelength ; anglelength := 20pt ;
+newinternal anglemethod ; anglemethod := 1 ;
+
+vardef anglebetween (expr a, b, str) = % path path string
+ save pointa, pointb, common, middle, offset ;
+ pair pointa, pointb, common, middle, offset ;
+ save curve ; path curve ;
+ save where ; numeric where ;
+ if round point 0 of a = round point 0 of b :
+ common := point 0 of a ;
+ else :
+ common := a intersectionpoint b ;
+ fi ;
+ pointa := point anglelength on a ;
+ pointb := point anglelength on b ;
+ where := turningnumber (common--pointa--pointb--cycle) ;
+ middle := (reverse(common--pointa) rotatedaround (pointa,-where*90))
+ intersection_point
+ (reverse(common--pointb) rotatedaround (pointb, where*90)) ;
+ if not intersection_found :
+ middle := point .5 along
+ ((reverse(common--pointa) rotatedaround (pointa,-where*90)) --
+ ( (common--pointb) rotatedaround (pointb, where*90))) ;
+ fi ;
+ if anglemethod = 0 :
+ curve := pointa{unitvector(middle-pointa)}.. pointb;
+ middle := point .5 along curve ;
+ curve := common ;
+ elseif anglemethod = 1 :
+ curve := pointa{unitvector(middle-pointa)}.. pointb;
+ middle := point .5 along curve ;
+ elseif anglemethod = 2 :
+ middle := common rotatedaround(.5[pointa,pointb],180) ;
+ curve := pointa--middle--pointb ;
+ elseif anglemethod = 3 :
+ curve := pointa--middle--pointb ;
+ elseif anglemethod = 4 :
+ curve := pointa..controls middle..pointb ;
+ middle := point .5 along curve ;
+ fi ;
+ draw thefreelabel(str, middle, common) ; % withcolor black ;
+ curve
+enddef ;
+
+% Stack
+
+picture mfun_current_picture_stack[] ;
+numeric mfun_current_picture_depth ;
+
+mfun_current_picture_depth := 0 ;
+
+def pushcurrentpicture =
+ mfun_current_picture_depth := mfun_current_picture_depth + 1 ;
+ mfun_current_picture_stack[mfun_current_picture_depth] := currentpicture ;
+ currentpicture := nullpicture ;
+enddef ;
+
+def popcurrentpicture text t = % optional text
+ if mfun_current_picture_depth > 0 :
+ addto mfun_current_picture_stack[mfun_current_picture_depth] also currentpicture t ;
+ currentpicture := mfun_current_picture_stack[mfun_current_picture_depth] ;
+ mfun_current_picture_stack[mfun_current_picture_depth] := nullpicture ;
+ mfun_current_picture_depth := mfun_current_picture_depth - 1 ;
+ fi ;
+enddef ;
+
+%D colorcircle(size, red, green, blue) ;
+
+vardef colorcircle (expr size, red, green, blue) = % might move
+ save r, g, b, c, m, y, w ; save radius ;
+ path r, g, b, c, m, y, w ; numeric radius ;
+
+ radius := 5cm ; pickup pencircle scaled (radius/25) ;
+
+ transform t ; t := identity rotatedaround(origin,120) ;
+
+ r := fullcircle rotated 90 scaled radius shifted (0,radius/4) rotatedaround(origin,135) ;
+
+ b := r transformed t ; g := b transformed t ;
+
+ c := buildcycle(subpath(1,7) of g,subpath(1,7) of b) ;
+ y := c transformed t ; m := y transformed t ;
+
+ w := buildcycle(subpath(3,5) of r, subpath(3,5) of g,subpath(3,5) of b) ;
+
+ pushcurrentpicture ;
+
+ fill r withcolor red ;
+ fill g withcolor green ;
+ fill b withcolor blue ;
+ fill c withcolor white - red ;
+ fill m withcolor white - green ;
+ fill y withcolor white - blue ;
+ fill w withcolor white ;
+
+ for i = r,g,b,c,m,y : draw i withcolor .5white ; endfor ;
+
+ currentpicture := currentpicture xsized size ;
+
+ popcurrentpicture ;
+enddef ;
+
+% penpoint (i,2) of somepath -> inner / outer point
+
+vardef penpoint expr pnt of p =
+ save n, d ; numeric n, d ;
+ (n,d) = if pair pnt : pnt else : (pnt,1) fi ;
+ (point n of p shifted ((penoffset direction n of p of currentpen) scaled d))
+enddef ;
+
+% nice: currentpicture := inverted currentpicture ;
+
+primarydef p uncolored c =
+ if color p :
+ c - p
+ else :
+ image (
+ for i within p :
+ addto currentpicture
+ if stroked i or filled i :
+ if filled i :
+ contour
+ else :
+ doublepath
+ fi
+ pathpart i
+ dashed dashpart i withpen penpart i
+ else :
+ also i
+ fi
+ withcolor c-(redpart i, greenpart i, bluepart i) ;
+ endfor ;
+ )
+ fi
+enddef ;
+
+vardef inverted primary p =
+ p uncolored white
+enddef ;
+
+primarydef p softened c =
+ begingroup
+ save cc ; color cc ; cc := tripled(c) ;
+ if color p :
+ (redpart cc * redpart p,greenpart cc * greenpart p, bluepart cc * bluepart p)
+ else :
+ image (
+ for i within p :
+ addto currentpicture
+ if stroked i or filled i :
+ if filled i :
+ contour
+ else :
+ doublepath
+ fi
+ pathpart i
+ dashed dashpart i withpen penpart i
+ else :
+ also i
+ fi
+ withcolor (redpart cc * redpart i, greenpart cc * greenpart i, bluepart cc * bluepart i) ;
+ endfor ;
+ )
+ fi
+ endgroup
+enddef ;
+
+vardef grayed primary p =
+ if color p :
+ tripled(.30redpart p+.59greenpart p+.11bluepart p)
+ else :
+ image (
+ for i within p :
+ addto currentpicture
+ if stroked i or filled i :
+ if filled i :
+ contour
+ else :
+ doublepath
+ fi
+ pathpart i
+ dashed dashpart i
+ withpen penpart i
+ else :
+ also i
+ fi
+ withcolor tripled(.30redpart i+.59greenpart i+.11bluepart i) ;
+ endfor ;
+ )
+ fi
+enddef ;
+
+% yes or no: "text" infont "cmr12" at 24pt ;
+
+% let normalinfont = infont ;
+%
+% numeric lastfontsize ; lastfontsize = fontsize defaultfont ;
+%
+% def infont primary name = % no vardef, no expr
+% hide(lastfontsize := fontsize name) % no ;
+% normalinfont name
+% enddef ;
+%
+% def scaledat expr size =
+% scaled (size/lastfontsize)
+% enddef ;
+%
+% let at = scaledat ;
+
+% like decimal
+
+def condition primary b = if b : "true" else : "false" fi enddef ;
+
+% undocumented
+
+primarydef p stretched s =
+ begingroup
+ save pp ; path pp ; pp := p xyscaled s ;
+ (pp shifted ((point 0 of p) - (point 0 of pp)))
+ endgroup
+enddef ;
+
+primarydef p enlonged len =
+ begingroup
+ if pair p :
+ save q ; path q ; q := origin -- p ;
+ save al ; al := arclength(q) ;
+ if al > 0 :
+ point 1 of (q stretched ((al+len)/al))
+ else :
+ p
+ fi
+ else :
+ save al ; al := arclength(p) ;
+ if al > 0 :
+ p stretched ((al+len)/al)
+ else :
+ p
+ fi
+ fi
+ endgroup
+enddef ;
+
+% path p ; p := (0,0) -- (10cm,5cm) ;
+% drawarrow p withcolor red ;
+% drawarrow p shortened 1cm withcolor green ;
+
+primarydef p shortened d =
+ reverse ( ( reverse (p enlonged -d) ) enlonged -d )
+enddef ;
+
+% yes or no, untested -)
+
+def xshifted expr dx = shifted(dx,0) enddef ;
+def yshifted expr dy = shifted(0,dy) enddef ;
+
+% also handy
+
+% right: str = readfrom ("abc" & ".def" ) ;
+% wrong: str = readfrom "abc" & ".def" ;
+
+% Every 62th read fails so we need to try again!
+
+% def readfile (expr name) =
+% if (readfrom (name) <> EOF) :
+% scantokens("input " & name & ";") ;
+% elseif (readfrom (name) <> EOF) :
+% scantokens("input " & name & ";") ;
+% fi ;
+% closefrom (name) ;
+% enddef ;
+%
+% this sometimes fails on the elseif, so :
+%
+
+def readfile (expr name) =
+ begingroup ; save ok ; boolean ok ;
+ if (readfrom (name) <> EOF) :
+ ok := false ;
+ elseif (readfrom (name) <> EOF) :
+ ok := false ;
+ else :
+ ok := true ;
+ fi ;
+ if not ok :
+ scantokens("input " & name & " ") ;
+ fi ;
+ closefrom (name) ;
+ endgroup ;
+enddef ;
+
+% permits redefinition of end in macro
+
+inner end ;
+
+% this will be redone (when needed) using scripts and backend handling
+
+let normalwithcolor = withcolor ;
+
+def remapcolors =
+ def withcolor primary c = normalwithcolor remappedcolor(c) enddef ;
+enddef ;
+
+def normalcolors =
+ let withcolor = normalwithcolor ;
+enddef ;
+
+def resetcolormap =
+ color color_map[][][] ;
+ normalcolors ;
+enddef ;
+
+resetcolormap ;
+
+def r_color primary c = redpart c enddef ;
+def g_color primary c = greenpart c enddef ;
+def b_color primary c = bluepart c enddef ;
+
+def remapcolor(expr old, new) =
+ color_map[redpart old][greenpart old][bluepart old] := new ;
+enddef ;
+
+def remappedcolor(expr c) =
+ if known color_map[redpart c][greenpart c][bluepart c] :
+ color_map[redpart c][greenpart c][bluepart c]
+ else :
+ c
+ fi
+enddef ;
+
+% Thanks to Jens-Uwe Morawski for pointing out that we need
+% to treat bounded and clipped components as local pictures.
+
+def recolor suffix p = p := repathed (0,p) enddef ;
+def refill suffix p = p := repathed (1,p) enddef ;
+def redraw suffix p = p := repathed (2,p) enddef ;
+def retext suffix p = p := repathed (3,p) enddef ;
+def untext suffix p = p := repathed (4,p) enddef ;
+
+% primarydef p recolored t = repathed(0,p) t enddef ;
+% primarydef p refilled t = repathed(1,p) t enddef ;
+% primarydef p redrawn t = repathed(2,p) t enddef ;
+% primarydef p retexted t = repathed(3,p) t enddef ;
+% primarydef p untexted t = repathed(4,p) t enddef ;
+
+color refillbackground ; refillbackground := (1,1,1) ;
+
+def restroke suffix p = p := repathed (21,p) enddef ; % keep attributes
+def reprocess suffix p = p := repathed (22,p) enddef ; % no attributes
+
+% also 11 and 12
+
+vardef repathed (expr mode, p) text t =
+ begingroup ;
+ if mode = 0 :
+ save withcolor ;
+ remapcolors ;
+ fi ;
+ save _p_, _pp_, _ppp_, _f_, _b_, _t_ ;
+ picture _p_, _pp_, _ppp_ ; color _f_ ; path _b_ ; transform _t_ ;
+ _b_ := boundingbox p ;
+ _p_ := nullpicture ;
+ for i within p :
+ _f_ := (redpart i, greenpart i, bluepart i) ;
+ if bounded i :
+ _pp_ := repathed(mode,i) t ;
+ setbounds _pp_ to pathpart i ;
+ addto _p_ also _pp_ ;
+ elseif clipped i :
+ _pp_ := repathed(mode,i) t ;
+ clip _pp_ to pathpart i ;
+ addto _p_ also _pp_ ;
+ elseif stroked i :
+ if mode=21 :
+ _ppp_ := i ; % indirectness is needed
+ addto _p_ also image(scantokens(t & " pathpart _ppp_")
+ dashed dashpart i withpen penpart i
+ withcolor _f_ ; ) ;
+ elseif mode=22 :
+ _ppp_ := i ; % indirectness is needed
+ addto _p_ also image(scantokens(t & " pathpart _ppp_")) ;
+ else :
+ addto _p_ doublepath pathpart i
+ dashed dashpart i withpen penpart i
+ withcolor _f_ % (redpart i, greenpart i, bluepart i)
+ if mode = 2 :
+ t
+ fi ;
+ fi ;
+ elseif filled i :
+ if mode=11 :
+ _ppp_ := i ; % indirectness is needed
+ addto _p_ also image(scantokens(t & " pathpart _ppp_")
+ withcolor _f_ ; ) ;
+ elseif mode=12 :
+ _ppp_ := i ; % indirectness is needed
+ addto _p_ also image(scantokens(t & " pathpart _ppp_")) ;
+ else :
+ addto _p_ contour pathpart i
+ withcolor _f_
+ if (mode=1) and (_f_<>refillbackground) :
+ t
+ fi ;
+ fi ;
+ elseif textual i : % textpart i <> "" :
+ if mode <> 4 :
+ % transform _t_ ;
+ % (xpart _t_, xxpart _t_, xypart _t_) = (xpart i, xxpart i, xypart i) ;
+ % (ypart _t_, yypart _t_, yxpart _t_) = (ypart i, yypart i, yxpart i) ;
+ % addto _p_ also
+ % textpart i infont fontpart i % todo : other font
+ % transformed _t_
+ % withpen penpart i
+ % withcolor _f_
+ % if mode=3 : t fi ;
+ addto _p_ also i
+ if mode=3 :
+ t
+ fi ;
+ fi ;
+ else :
+ addto _p_ also i ;
+ fi ;
+ endfor ;
+ setbounds _p_ to _b_ ;
+ _p_
+ endgroup
+enddef ;
+
+% After a question of Denis on how to erase a z variable, Jacko
+% suggested to assign whatever to x and y. So a clearz
+% variable can be defined as:
+%
+% vardef clearz@# =
+% x@# := whatever ;
+% y@# := whatever ;
+% enddef ;
+%
+% but Jacko suggested a redefinition of clearxy:
+%
+% def clearxy text s =
+% clearxy_index_:=0;
+% for $:=s:
+% clearxy_index_:=clearxy_index_+1; endfor;
+% if clearxy_index_=0:
+% save x,y;
+% else:
+% forsuffixes $:=s: x$:=whatever; y$:=whatever; endfor;
+% fi
+% enddef;
+%
+% which i decided to simplify to:
+
+def clearxy text s =
+ if false for $ := s : or true endfor :
+ forsuffixes $ := s : x$ := whatever ; y$ := whatever ; endfor ;
+ else :
+ save x, y ;
+ fi
+enddef ;
+
+% so now we can say: clearxy ; as well as clearxy 1, 2, 3 ;
+
+% show x0 ; z0 = (10,10) ;
+% show x0 ; x0 := whatever ; y0 := whatever ;
+% show x0 ; z0 = (20,20) ;
+% show x0 ; clearxy 0 ;
+% show x0 ; z0 = (30,30) ;
+
+primarydef p smoothed d =
+ (p llmoved (-xpart paired(d),0) -- p lrmoved (-xpart paired(d),0) {right} ..
+ p lrmoved (0,-ypart paired(d)) -- p urmoved (0,-ypart paired(d)) {up} ..
+ p urmoved (-xpart paired(d),0) -- p ulmoved (-xpart paired(d),0) {left} ..
+ p ulmoved (0,-ypart paired(d)) -- p llmoved (0,-ypart paired(d)) {down} .. cycle)
+enddef ;
+
+primarydef p cornered c =
+ ((point 0 of p) shifted (c*(unitvector(point 1 of p - point 0 of p))) --
+ for i=1 upto length(p) :
+ (point i-1 of p) shifted (c*(unitvector(point i of p - point i-1 of p))) --
+ (point i of p) shifted (c*(unitvector(point i-1 of p - point i of p))) ..
+ controls point i of p ..
+ endfor cycle)
+enddef ;
+
+% cmyk color support
+
+% vardef cmyk(expr c,m,y,k) = % elsewhere
+% (1-c-k,1-m-k,1-y-k)
+% enddef ;
+
+% handy
+
+% vardef bbwidth (expr p) = % vardef width_of primary p =
+% if known p :
+% if path p or picture p :
+% xpart (lrcorner p - llcorner p)
+% else :
+% 0
+% fi
+% else :
+% 0
+% fi
+% enddef ;
+
+vardef bbwidth primary p =
+ if unknown p :
+ 0
+ elseif path p or picture p :
+ xpart (lrcorner p - llcorner p)
+ else :
+ 0
+ fi
+enddef ;
+
+% vardef bbheight (expr p) = % vardef heigth_of primary p =
+% if known p :
+% if path p or picture p :
+% ypart (urcorner p - lrcorner p)
+% else :
+% 0
+% fi
+% else :
+% 0
+% fi
+% enddef ;
+
+vardef bbheight primary p =
+ if unknown p :
+ 0
+ elseif path p or picture p :
+ ypart (urcorner p - lrcorner p)
+ else :
+ 0
+ fi
+enddef ;
+
+color nocolor ; numeric noline ; % both unknown signals
+
+def dowithpath (expr p, lw, lc, bc) =
+ if known p :
+ if known bc :
+ fill p withcolor bc ;
+ fi ;
+ if known lw and known lc :
+ draw p withpen pencircle scaled lw withcolor lc ;
+ elseif known lw :
+ draw p withpen pencircle scaled lw ;
+ elseif known lc :
+ draw p withcolor lc ;
+ fi ;
+ fi ;
+enddef ;
+
+% result from metafont discussion list (denisr/boguslawj)
+
+def [[ = [ [ enddef ; def [[[ = [ [ [ enddef ;
+def ]] = ] ] enddef ; def ]]] = ] ] ] enddef ;
+
+let == = = ;
+
+% added
+
+picture oddly ; % evenly already defined
+
+evenly := dashpattern(on 3 off 3) ;
+oddly := dashpattern(off 3 on 3) ;
+
+% not perfect, but useful since it removes redundant points.
+
+vardef mfun_straightened(expr sign, p) =
+ save _p_, _q_ ; path _p_, _q_ ;
+ _p_ := p ;
+ forever :
+ _q_ := mfun_do_straightened(sign, _p_) ;
+ exitif length(_p_) = length(_q_) ;
+ _p_ := _q_ ;
+ endfor ;
+ _q_
+enddef ;
+
+vardef mfun_do_straightened(expr sign, p) =
+ if length(p)>2 : % was 1, but straight lines are ok
+ save pp ; path pp ;
+ pp := point 0 of p ;
+ for i=1 upto length(p)-1 :
+ if round(point i of p) <> round(point length(pp) of pp) :
+ pp := pp -- point i of p ;
+ fi ;
+ endfor ;
+ save n, ok ; numeric n ; boolean ok ;
+ n := length(pp) ; ok := false ;
+ if n>2 :
+ for i=0 upto n : % evt hier ook round
+ if unitvector(round(point i of pp - point if i=0 : n else : i-1 fi of pp)) <>
+ sign * unitvector(round(point if i=n : 0 else : i+1 fi of pp - point i of pp)) :
+ if ok :
+ --
+ else :
+ ok := true ;
+ fi point i of pp
+ fi
+ endfor
+ if ok and (cycle p) :
+ -- cycle
+ fi
+ else :
+ pp
+ fi
+ else :
+ p
+ fi
+enddef ;
+
+vardef simplified expr p = (
+ reverse mfun_straightened(+1,mfun_straightened(+1,reverse p))
+) enddef ;
+
+vardef unspiked expr p = (
+ reverse mfun_straightened(-1,mfun_straightened(-1,reverse p))
+) enddef ;
+
+% path p ;
+% p := (2cm,1cm) -- (2cm,1cm) -- (2cm,1cm) -- (3cm,1cm) --
+% (4cm,1cm) -- (4cm,2cm) -- (4cm,2.5cm) -- (4cm,3cm) --
+% (3cm,3cm) -- (2cm,3cm) -- (1cm,3cm) -- (-1cm,3cm) --
+% .5[(-1cm,3cm),(1cm,1cm)] -- (1cm,1cm) -- cycle ;
+%
+% p := unitcircle scaled 4cm ;
+%
+% drawpath p ; drawpoints p ; drawpointlabels p ;
+% p := p shifted (4cm,0) ; p := straightened p ;
+% drawpath p ; drawpoints p ; drawpointlabels p ;
+% p := p shifted (4cm,0) ; p := straightened p ;
+% drawpath p ; drawpoints p ; drawpointlabels p ;
+
+% new
+
+path originpath ; originpath := origin -- cycle ;
+
+vardef unitvector primary z =
+ if abs z = abs origin : z else : z/abs z fi
+enddef;
+
+% also new
+
+% vardef anchored@#(expr p, z) = % maybe use the textext variant
+% p shifted (z + (labxf@#*lrcorner p + labyf@#*ulcorner p + (1-labxf@#-labyf@#)*llcorner p))
+% enddef ;
+
+% epsed(1.2345)
+
+vardef epsed (expr e) =
+ e if e>0 : + eps elseif e<0 : - eps fi
+enddef ;
+
+% handy
+
+def withgray primary g =
+ withcolor (g,g,g)
+enddef ;
+
+% for metafun
+
+if unknown darkred : color darkred ; darkred := .625(1,0,0) fi ;
+if unknown darkgreen : color darkgreen ; darkgreen := .625(0,1,0) fi ;
+if unknown darkblue : color darkblue ; darkblue := .625(0,0,1) fi ;
+if unknown darkcyan : color darkcyan ; darkcyan := .625(0,1,1) fi ;
+if unknown darkmagenta : color darkmagenta ; darkmagenta := .625(1,0,1) fi ;
+if unknown darkyellow : color darkyellow ; darkyellow := .625(1,1,0) fi ;
+if unknown darkgray : color darkgray ; darkgray := .625(1,1,1) fi ;
+if unknown lightgray : color lightgray ; lightgray := .875(1,1,1) fi ;
+
+% an improved plain mp macro
+
+vardef center primary p =
+ if pair p :
+ p
+ else :
+ .5[llcorner p, urcorner p]
+ fi
+enddef;
+
+% new, yet undocumented
+
+vardef rangepath (expr p, d, a) =
+ if length p>0 :
+ (d*unitvector(direction 0 of p) rotated a) shifted point 0 of p
+ -- p --
+ (d*unitvector(direction length(p) of p) rotated a) shifted point length(p) of p
+ else :
+ p
+ fi
+enddef ;
+
+% under construction
+
+vardef straightpath (expr a, b, method) =
+ if (method<1) or (method>6) :
+ (a--b)
+ elseif method = 1 :
+ (a --
+ if xpart a > xpart b :
+ if ypart a > ypart b :
+ (xpart b,ypart a) --
+ elseif ypart a < ypart b :
+ (xpart a,ypart b) --
+ fi
+ elseif xpart a < xpart b :
+ if ypart a > ypart b :
+ (xpart a,ypart b) --
+ elseif ypart a < ypart b :
+ (xpart b,ypart a) --
+ fi
+ fi
+ b)
+ elseif method = 3 :
+ (a --
+ if xpart a > xpart b :
+ (xpart b,ypart a) --
+ elseif xpart a < xpart b :
+ (xpart a,ypart b) --
+ fi
+ b)
+ elseif method = 5 :
+ (a --
+ if ypart a > ypart b :
+ (xpart b,ypart a) --
+ elseif ypart a < ypart b :
+ (xpart a,ypart b) --
+ fi
+ b)
+ else :
+ (reverse straightpath(b,a,method-1))
+ fi
+enddef ;
+
+% handy for myself
+
+def addbackground text t =
+ begingroup ;
+ save p, b ; picture p ; path b ;
+ b := boundingbox currentpicture ;
+ p := currentpicture ; currentpicture := nullpicture ;
+ fill b t ;
+ setbounds currentpicture to b ;
+ addto currentpicture also p ;
+ endgroup ;
+enddef ;
+
+% makes a (line) into an infinite one (handy for calculating
+% intersection points
+
+vardef infinite expr p =
+ (-infinity*unitvector(direction 0 of p)
+ shifted point 0 of p
+ -- p --
+ +infinity*unitvector(direction length(p) of p)
+ shifted point length(p) of p)
+enddef ;
+
+% obscure macros: create var from string and replace - and :
+% (needed for process color id's) .. will go away
+
+string mfun_clean_ascii[] ;
+
+def register_dirty_chars(expr str) =
+ for i = 0 upto length(str)-1 :
+ mfun_clean_ascii[ASCII substring(i,i+1) of str] := "_" ;
+ endfor ;
+enddef ;
+
+register_dirty_chars("+-*/:;., ") ;
+
+vardef cleanstring (expr s) =
+ save ss ; string ss, si ; ss = "" ; save i ;
+ for i=0 upto length(s) :
+ si := substring(i,i+1) of s ;
+ ss := ss & if known mfun_clean_ascii[ASCII si] : mfun_clean_ascii[ASCII si] else : si fi ;
+ endfor ;
+ ss
+enddef ;
+
+vardef asciistring (expr s) =
+ save ss ; string ss, si ; ss = "" ; save i ;
+ for i=0 upto length(s) :
+ si := substring(i,i+1) of s ;
+ if (ASCII si >= ASCII "0") and (ASCII si <= ASCII "9") :
+ ss := ss & char(scantokens(si) + ASCII "A") ;
+ else :
+ ss := ss & si ;
+ fi ;
+ endfor ;
+ ss
+enddef ;
+
+vardef setunstringed (expr s, v) =
+ scantokens(cleanstring(s)) := v ;
+enddef ;
+
+vardef getunstringed (expr s) =
+ scantokens(cleanstring(s))
+enddef ;
+
+vardef unstringed (expr s) =
+ expandafter known scantokens(cleanstring(s))
+enddef ;
+
+% for david arnold:
+
+% showgrid(-5,10,1cm,-10,10,1cm);
+
+def showgrid (expr MinX, MaxX, DeltaX, MinY, MaxY, DeltaY) = % will move
+ begingroup
+ save size ; numeric size ; size := 2pt ;
+ for x=MinX upto MaxX :
+ for y=MinY upto MaxY :
+ draw (x*DeltaX, y*DeltaY) withpen pencircle scaled
+ if (x mod 5 = 0) and (y mod 5 = 0) :
+ 1.5size withcolor .50white
+ else :
+ size withcolor .75white
+ fi ;
+ endfor ;
+ endfor ;
+ for x=MinX upto MaxX:
+ label.bot(textext("\infofont " & decimal x), (x*DeltaX,-size)) ;
+ endfor ;
+ for y=MinY upto MaxY:
+ label.lft(textext("\infofont " & decimal y), (-size,y*DeltaY)) ;
+ endfor ;
+ endgroup
+enddef;
+
+% new, handy for:
+%
+% \startuseMPgraphic{map}{n}
+% \includeMPgraphic{map:germany} ;
+% c_phantom (\MPvar{n}<1) (
+% fill map_germany withcolor \MPcolor{lightgray} ;
+% draw map_germany withpen pencircle scaled 1pt withcolor \MPcolor{darkgray} ;
+% ) ;
+% \includeMPgraphic{map:austria} ;
+% c_phantom (\MPvar{n}<2) (
+% fill map_austria withcolor \MPcolor{lightgray} ;
+% draw map_austria withpen pencircle scaled 1pt withcolor \MPcolor{darkgray} ;
+% ) ;
+% c_phantom (\MPvar{n}<3) (
+% \includeMPgraphic{map:swiss} ;
+% fill map_swiss withcolor \MPcolor{lightgray} ;
+% draw map_swiss withpen pencircle scaled 1pt withcolor \MPcolor{darkgray} ;
+% ) ;
+% c_phantom (\MPvar{n}<4) (
+% \includeMPgraphic{map:luxembourg} ;
+% fill map_luxembourg withcolor \MPcolor{lightgray} ;
+% draw map_luxembourg withpen pencircle scaled 1pt withcolor \MPcolor{darkgray} ;
+% ) ;
+% \stopuseMPgraphic
+%
+% \useMPgraphic{map}{n=3}
+
+vardef phantom (text t) = % to be checked
+ picture _p_ ;
+ _p_ := image(t) ;
+ addto _p_ also currentpicture ;
+ setbounds currentpicture to boundingbox _p_ ;
+enddef ;
+
+vardef c_phantom (expr b) (text t) =
+ if b :
+ picture _p_ ;
+ _p_ := image(t) ;
+ addto _p_ also currentpicture ;
+ setbounds currentpicture to boundingbox _p_ ;
+ else :
+ t ;
+ fi ;
+enddef ;
+
+%D Handy:
+
+def break =
+ exitif true fi ;
+enddef ;
+
+%D New too:
+
+primarydef p xstretched w = (
+ p if (bbwidth (p)>0) and (w>0) : xscaled (w/bbwidth (p)) fi
+) enddef ;
+
+primarydef p ystretched h = (
+ p if (bbheight(p)>0) and (h>0) : yscaled (h/bbheight(p)) fi
+) enddef ;
+
+primarydef p snapped s =
+ hide (
+ if path p :
+ forever :
+ exitif (bbheight(p) <= s) and (bbwidth(p) <= s) ;
+ p := p scaled (1/2) ;
+ endfor ;
+ elseif numeric p :
+ forever :
+ exitif p <= s ;
+ p := p scaled (1/2) ;
+ endfor ;
+ fi ;
+ )
+ p
+enddef ;
+
+% vardef somecolor = (1,1,0,0) enddef ;
+
+% fill OverlayBox withcolor (rcomponent somecolor,gcomponent somecolor,bcomponent somecolor) ;
+% fill OverlayBox withcolor (ccomponent somecolor,mcomponent somecolor,ycomponent somecolor,bcomponent somecolor) ;
+
+% This could be standard mplib 2 behaviour:
+
+vardef rcomponent expr p = if rgbcolor p : redpart p elseif cmykcolor p : 1 - cyanpart p else : p fi enddef ;
+vardef gcomponent expr p = if rgbcolor p : greenpart p elseif cmykcolor p : 1 - magentapart p else : p fi enddef ;
+vardef bcomponent expr p = if rgbcolor p : bluepart p elseif cmykcolor p : 1 - yellowpart p else : p fi enddef ;
+vardef ccomponent expr p = if cmykcolor p : cyanpart p elseif rgbcolor p : 1 - redpart p else : p fi enddef ;
+vardef mcomponent expr p = if cmykcolor p : magentapart p elseif rgbcolor p : 1 - greenpart p else : p fi enddef ;
+vardef ycomponent expr p = if cmykcolor p : yellowpart p elseif rgbcolor p : 1 - bluepart p else : p fi enddef ;
+vardef bcomponent expr p = if cmykcolor p : blackpart p elseif rgbcolor p : 0 else : p fi enddef ;
+
diff --git a/Master/texmf-dist/metapost/context/base/mp-txts.mp b/Master/texmf-dist/metapost/context/base/mp-txts.mpii
index f208c714900..d3d25293dbf 100644
--- a/Master/texmf-dist/metapost/context/base/mp-txts.mp
+++ b/Master/texmf-dist/metapost/context/base/mp-txts.mpii
@@ -11,8 +11,7 @@
%C therefore copyrighted by \PRAGMA. See licen-en.pdf for
%C details.
-if unknown context_tool : input mp-tool ; fi ;
-if known context_txts : endinput ; fi ;
+if known context_txts : endinput ; fi ;
boolean context_txts ; context_txts := true ;