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divert(-1)
darrow.m4 Macros for double lines and arrows
* Circuit_macros Version 9.8, copyright (c) 2022 J. D. Aplevich under *
* the LaTeX Project Public Licence in file Licence.txt. The files of *
* this distribution may be redistributed or modified provided that this *
* copyright notice is included and provided that modifications are clearly *
* marked to distinguish them from this distribution. There is no warranty *
* whatsoever for these files. *
`Notes: these macros have been reworked (Jan 2013) so that dlthick is the
total outside width, consistent with solid lines and arrows, and to add
the !- and -! half-linethick line caps to simplify butting to boxes.
Some of these macros have uncomfortably many arguments for specifying
options, so wrappers beginning with upper-case letters (Dline, Darrow, Darc)
are provided and implement key=val;key=val... option specifications.
'
=============================================================================
define(`darrow_')
ifdef(`libgen_',,`include(libgen.m4)divert(-1)')
Default width (thickness) of double lines
define(`dlthick',`(0.08*scale+lthick)')
#efine(`dlinewid',`dlthick') Obsolete, keep for a while for compatibility.
`ELement fill color (default white)
e.g. define(`dfillcolor',`1,0.84,0')
Obsolete:
command "\definecolor{gold}{rgb}{1,0.84,0}"
define(`dfillcolor',gold)'
define(`dfillcolor',`1,1,1')
define(`dfillgrey',1) `fill shade for gpic'
define(`darcrad',`dlthick*2') `default darc radius'
`Default length:'
ifdef(`elen_',,`define(`elen_',linewid*3/2)')
=============================================================================
`deleminit_(linespec,len,dlinethick)
dline initialization'
define(`deleminit_',`define(`m4dlthk',ifelse(`$3',,dlthick,`$3'))dnl
rpoint_(ifelse(`$1',,`to rvec_(ifelse(`$2',,linewid,`$2'),0)',`$1')) ')
`above, below, ljust, rjust but displaced
by dlthick/2 eg "string" dabove(at position)'
define(`dabove',`above ifelse(`$1',,`at Here',`$1')+(0,dlthick/2)')
define(`dbelow',`below ifelse(`$1',,`at Here',`$1')-(0,dlthick/2)')
define(`dljust',`ljust ifelse(`$1',,`at Here',`$1')+(dlthick/2,0)')
define(`drjust',`rjust ifelse(`$1',,`at Here',`$1')-(dlthick/2,0)')
`dline(linespec,start truncation,end truncation,dlthick, ends )
ends= blank, x-x, -x, x-, where x means ! or |'
define(`dline',`deleminit_(`$1',,`$4')
M4DL: line from last line.start to last line.end \
chop ifelse(`$2',,0,m4dlthk/2) chop ifelse(`$3',,0,m4dlthk/2)
ifelse(rgbstring(1,1,1),"",,
`{line thick m4dlthk/(1bp__) from M4DL.start to M4DL.end }
{line thick m4dlthk/(1bp__)-2*linethick outlined rgbstring(dfillcolor) \
from M4DL.start \
ifinstr(`$5',|-,`+vec_(lthick,0)',`$5',!-,`+vec_(lthick/2,0)') \
to M4DL.end \
ifinstr(`$5',-|,`-vec_(lthick,0)',`$5',-!,`-vec_(lthick/2,0)') }')
ifgpic(`M4dV: vec_(0,m4dlthk/2-lthick/2); shade(dfillgrey,
{line from M4DL.start+(M4dV.x,M4dV.y) to M4DL.end+(M4dV.x,M4dV.y)}
{line from M4DL.start-(M4dV.x,M4dV.y) to M4DL.end-(M4dV.x,M4dV.y)})')
line invis from M4DL.start to M4DL.end')
`Dline(linespec,params)
params is a semicolon-separated list of items:
S truncate at start by dline thickness/2
E truncate at end by dline thickness/2
thick=val (total thicknes, ie width)
ends= x-x or -x or x- where x is ! or |
|- closed end with full-width line
!- closed end with half-width line
eg Dline(from A to B,E;ends=|-)'
define(`Dline',
`pushkey_(`$2',thick,dlthick)
pushkey_(`$2',ends)pushdef(`m4ends',substr(m4ends,1,eval(len(m4ends)-2)))
dline(`$1',ifinstr(`$2',S,t),ifinstr(`$2',E,t),m4thick,m4ends)
popdef(`m4ends')popdef(`m4ends')popdef(`m4thick')
')
`dleft(at position,dlthick) Turn left,
leaving current location at exit of corner'
define(`dleft',`deleminit_(,ifelse(`$2',,dlthick,`$2'),`$2')
ifelse(`$1',,,`move to substr(`$1',eval(index(`$1',t)+1))-vec_(m4dlthk/2,0)')
{ line thick m4dlthk/(1bp__) to rvec_(m4dlthk,0) }
ifelse(rgbstring(1,1,1),"",,
`line thick m4dlthk/(1bp__)-2*linethick outlined rgbstring(dfillcolor) \
to rvec_(m4dlthk/2,0) then to rvec_(m4dlthk/2,m4dlthk/2)')
ifgpic(`{line from rvec_(0,m4dlthk/2-lthick/2) to rvec_(0,m4dlthk/2-lthick/2)}
{line from rvec_(m4dlthk-lthick/2,m4dlthk/2) \
to rvec_(m4dlthk-lthick/2,-m4dlthk/2+lthick/2) then \
to rvec_(0,-m4dlthk/2+lthick/2)}
move to rvec_(m4dlthk/2,m4dlthk/2)')
rp_ang = rp_ang+pi__/2')
`dright(at position,dlthick) Turn right,
leaving current location at exit of corner'
define(`dright',`deleminit_(,ifelse(`$2',,dlthick,`$2'),`$2')
ifelse(`$1',,,`move to substr(`$1',eval(index(`$1',t)+1))-vec_(m4dlthk/2,0)')
{ line thick m4dlthk/(1bp__) to rvec_(m4dlthk,0) }
ifelse(rgbstring(1,1,1),"",,
`line thick m4dlthk/(1bp__)-2*linethick outlined rgbstring(dfillcolor) \
to rvec_(m4dlthk/2,0) then to rvec_(m4dlthk/2,-m4dlthk/2)')
ifgpic(`{line from rvec_(0,-m4dlthk/2+lthick/2) \
to rvec_(0,-m4dlthk/2+lthick/2)}
{line from rvec_(m4dlthk-lthick/2,-m4dlthk/2) \
to rvec_(m4dlthk-lthick/2,m4dlthk/2-lthick/2) then \
to rvec_(0,m4dlthk/2-lthick/2)}
move to rvec_(m4dlthk/2,-m4dlthk/2)')
rp_ang = rp_ang-pi__/2')
`dturn(arg,dlthick)
Turn arg relative degrees ccw'
define(`dturn',`deleminit_(,ifelse(`$2',,dlthick,`$2'),`$2')
[S: Here
deg = ifelse(`$1',,0,`$1')
c = cosd(deg); s = sind(deg); sgn = sign(deg); r = (dlthick-lthick)/2
A: S+vec_(lthick/2*abs(s),sgn*r)
B: A+vec_(vscal_(lthick/2*abs(s),c,s))
C: S+vec_(0, sgn*r)
if deg==0 then {t = 0} else { t = (1-c)/s } # t = tan(deg/2)
D: A+vec_(vscal_(r*2,sgn*t,-sgn))
E: B+vec_(vscal_(r*2,sgn*s,-sgn*c))
F: S+vec_(0,-sgn*r)
T: 0.5 between A and D
X: 0.5 between B and E
ifelse(rgbstring(1,1,1),"",,
`line thick r*2/(1bp__) outlined rgbstring(dfillcolor) \
from S to T then to X')
ifgpic(`m4tmpth = linethick; linethick=0
shade(dfillgrey,`line from C to A then to B; line from E to D then to F')
linethick = m4tmpth')
line from C to A then to B
line from E to D then to F
#{"A" at A;"B" at B;"C" at C;"D" at D;"E" at E; "F" at F;"T" at T;"X" at X}
`$3'] with .S at Here
move to last [].X
ifelse(`$1',,,`Point_(`$1'+rp_ang*rtod_)') ')
`darrow(linespec, start truncation, end truncation, dlthick,
arrow wid, arrow ht, terminals)
terminals is blank or x-, ->, x->, <-, <-x, <-> where x is
! for closed end with half-width line or
| for closed end with full-width line'
define(`darrow',`deleminit_(`$1',,`$4')
ifelse(ifinstr(`$7',<->,,`$7',<-,T),T,
`define(`m4dx',`ifinstr(`$7',|,|,`$7',!,!)'->)dnl
M4DA: line invis from last line.end to last line.start \
chop ifelse(`$3',,0,m4dlthk/2) chop ifelse(`$2',,0,m4dlthk/2)
rp_ang = rp_ang+pi__',
`define(`m4dx',`$7')dnl
M4DA: line invis from last line.start to last line.end \
chop ifelse(`$2',,0,m4dlthk/2) chop ifelse(`$3',,0,m4dlthk/2)')
[ C: M4DA.c; S: M4DA.start; E: M4DA.end
w = ifelse(`$5',,m4dlthk*3/2,`$5')
h = ifelse(`$6',,m4dlthk,`$6')
d = sqrt((w/2)^2+h^2)
p = d/w*lthick
V: vec_(0,m4dlthk/2-lthick/2)
T: vec_(h-lthick/2,0)
P: vec_(p,0)
Vt: vec_(0,w/2/h * (h-lthick/2-p))
W: vec_(lthick/2,0)
X: ifinstr(`$7',<->,C,m4dx,!,S,m4dx,|,S+(W.x,W.y),S)
ifgpic(`shade(dfillgrey,') line dnl
ifelse(rgbstring(1,1,1),"",,`shaded rgbstring(dfillcolor)') from dnl
ifinstr(m4dx,|,`X to X+(V.x,V.y) then',`X+(V.x,V.y)') to \
E-(T.x,T.y)+(V.x,V.y) then to E-(T.x,T.y)+(Vt.x,Vt.y) \
then to E-(P.x,P.y) \
then to E-(T.x,T.y)-(Vt.x,Vt.y) then to E-(T.x,T.y)-(V.x,V.y) \
then to dnl
ifinstr(m4dx,<-,
`S+(T.x,T.y)-(V.x,V.y) then to S+(T.x,T.y)-(Vt.x,Vt.y) \
then to S+(P.x,P.y) \
then to S+(T.x,T.y)+(Vt.x,Vt.y) then to S+(T.x,T.y)+(V.x,V.y) \
then to X+(V.x,V.y)',
m4dx,|,
`X-(V.x,V.y) then to X',
m4dx,!,
`S-(V.x,V.y); line thick linethick/2 from S+(W.x/2,W.y/2)-(V.x,V.y) \
to S+(W.x/2,W.y/2)+(V.x,V.y)
line from S+(V.x,V.y) to X+(V.x,V.y)',
`X-(V.x,V.y)') ifgpic(`)')
] with .C at M4DA.c
ifelse(ifinstr(`$7',<->,,`$7',<-,T),T,
`rp_ang = rp_ang-pi__
arrow invis from M4DA.end to M4DA.start',
`arrow invis from M4DA.start to M4DA.end')
')
`Darrow(linespec,params)
params is a semicolon-separated list of items:
S truncate at start by dline thickness/2
E truncate at end by dline thickness/2
thick=val (total thicknes, ie width)
wid=val (arrowhead width)
ht=val (arrowhead height)
ends= -> or x-> or <- or <-x or <-> where x is | or !
|- closed end with full-width line
!- closed end with half-width line
eg Darrow(from A to B,E;ends=<-|)'
define(`Darrow',
`pushkey_(`$2',thick,dlthick)
pushkey_(`$2',wid,dlthick*3/2)
pushkey_(`$2',ht,dlthick)
pushkey_(`$2',ends)pushdef(`m4ends',substr(m4ends,1,eval(len(m4ends)-2)))
darrow(`$1',ifinstr(`$2',S,t),ifinstr(`$2',E,t),m4thick,m4wid,m4ht,m4ends)dnl
popdef(`m4ends')popdef(`m4ends')popdef(`m4ht',`m4wid',`m4thick')')
`dtee([L|R],dlthick) Construct tee with tail right,
left, or back along current direction, leaving
current location at tee centre; eg
dline(right_,,t); dtee(R);
{ darrow(down_,t) }; darrow(right_,t)'
define(`dtee',`deleminit_(,ifelse(`$2',,dlthick,`$2'),`$2')
move to last line.c
ifelse(`$1',L,`rp_ang = rp_ang-pi_/2',`$1',R,`rp_ang = rp_ang+pi_/2')
ifelse(rgbstring(1,1,1),"",,
`{line thick dlthick/(1bp__) from rvec_(-m4dlthk/2,0) to rvec_(m4dlthk/2,0)}
{line thick dlthick/(1bp__)-2*linethick outlined rgbstring(dfillcolor) \
to rvec_(-m4dlthk/2,0) }
{line thick dlthick/(1bp__)-2*linethick outlined rgbstring(dfillcolor) \
from rvec_(0,-m4dlthk/2) to rvec_(0,m4dlthk/2) } ')
ifgpic(`m4tmpth = linethick; linethick=0; shade(dfillgrey,
{line from rvec_(-m4dlthk/2, m4dlthk/2) to rvec_( m4dlthk/2, m4dlthk/2)}
{line from rvec_( m4dlthk/2,-m4dlthk/2) to rvec_(-m4dlthk/2,-m4dlthk/2)})
linethick = m4tmpth') ')
Close off line end: `dend([at position])'
define(`dend',`deleminit_(,lthick)
ifelse(`$1',,,`move to substr(`$1',eval(index(`$1',at)+2))')
{line from rvec_(0,-dlthick/2) to rvec_(0,dlthick/2)}
move to rvec_(lthick/2,0) ')
`darc(center pos, radius, start radians, end radians, dlthick,
arrow wid, arrow ht, symbols ) draw CCW arc
symbols= x-, -x, x-x, ->, x->, <-, <-x, <->
where x is | or ! ; arrowheads for dpic only '
define(`darc',`[ C: (0,0)
dlth=ifelse(`$5',,dlthick,`$5')
w = ifelse(`$6',,dlth*1.75,(`$6'))
h = ifelse(`$7',,dlth,(`$7'))
r = ifelse(`$2',,darcrad,`($2)')
p = sqrt((w/2)^2+h^2)/(w/2)*lthick
as = ifelse(`$3',,rp_ang-pi__/2,`$3')
tas = as ifinstr(`$8',<-,`+ p/r')
ae = ifelse(`$4',,as+pi__/2,`$4')
tae = ae ifinstr(`$8',<-,`- p/r')
S: (rect_(r,as)); TS: (rect_(r,tas))
E: (rect_(r,ae)); TE: (rect_(r,tae))
arc thick dlth/(1bp__) wid w ht h dnl
ifinstr(`$8',<-,<-`'ifinstr(`$8',->,>),`$8',->,->) from S to E with .c at C
ifelse(rgbstring(1,1,1),"",,
`arc thick dlth/(1bp__)-linethick*2 wid (h-p-lthick)/h*w ht h-p-lthick \
colored rgbstring(dfillcolor) \
ifinstr(`$8',<-,<-`'ifinstr(`$8',->,>),`$8',->,->) \
from TS to TE rad r with .c at C')
ifinstr(`$8',|-,`X: (vscal_(lthick/2,-sin(as),cos(as)))
line from C+(rect_(r+dlthick/2-lthick/2,as))+(X.x,X.y) to \
C+(rect_(r-dlthick/2+lthick/2,as))+(X.x,X.y)',
`$8',!-,`X: (vscal_(lthick/4,-sin(as),cos(as)))
line thick linethick/2 \
from C+(rect_(r+dlthick/2-lthick/4,as))+(X.x,X.y) to \
C+(rect_(r-dlthick/2+lthick/4,as))+(X.x,X.y)')
ifinstr(`$8',-|,`X: (vscal_(lthick/2,-sin(ae),cos(ae)))
line from C+(rect_(r+dlthick/2-lthick/2,ae))-(X.x,X.y) to \
C+(rect_(r-dlthick/2+lthick/2,ae))-(X.x,X.y)',
`$8',!-,`X: (vscal_(lthick/4,-sin(ae),cos(ae)))
line thick linethick/2 \
from C+(rect_(r+dlthick/2-lthick/4,ae))-(X.x,X.y) to \
C+(rect_(r-dlthick/2+lthick/4,ae))-(X.x,X.y)')
rp_ang := ae+pi__/2
] with ifelse(`$1',,.S at Here,.C at `$1')
move to last [].E
')
`Darc(center pos, radius, start radians, end radians, params)
draw CCW arc
params is a semicolon-separated list of items:
thick=val (total thicknes, ie width)
wid=val (arrowhead width)
ht=val (arrowhead height)
ends= x-, -x, x-x, ->, x->, <-, <-x, <-> where x is ! or |
< and > work for dpic only
|- closed end with full-width line
!- closed end with half-width line
eg Darc(C,r,ang1,ang2,ends=<-|)'
define(`Darc',
`pushkey_(`$5',thick,dlthick)
pushkey_(`$5',wid,dlthick*1.75)
pushkey_(`$5',ht,dlthick)
pushkey_(`$5',ends)pushdef(`m4ends',substr(m4ends,1,eval(len(m4ends)-2)))
darc(`$1',`$2',`$3',`$4',m4thick,m4wid,m4ht,m4ends)dnl
popdef(`m4ends')popdef(`m4ends')popdef(`m4ht',`m4wid',`m4thick')')
divert(0)dnl
|
