texdraw (6may19)

git-svn-id: svn://tug.org/texlive/trunk@51030 c570f23f-e606-0410-a88d-b1316a301751

9 files changed, 1307 insertions, 146 deletions

diff --git a/Master/texmf-dist/doc/info/texdraw.info b/Master/texmf-dist/doc/info/texdraw.info
index 68f6e64096e..1bdcf3fb163 100644
--- a/Master/texmf-dist/doc/info/texdraw.info
+++ b/Master/texmf-dist/doc/info/texdraw.info
@@ -1,7 +1,7 @@
 This is texdraw.info, produced by makeinfo version 6.6 from
 texdraw.texi.
 
-This manual (edition 2.0a) documents TeXdraw, a system for producing
+This manual (edition 2.3) documents TeXdraw, a system for producing
 PostScript drawings from TeX.
 
    Copyright (C) 1993-2019 Peter Kabal
@@ -24,9 +24,7 @@ TeXdraw
 TeXdraw is a collection of macros that allow drawings to be created from
 _within_ TeX.
 
-   This is edition 2.0a of the TeXdraw documentation.  The only
-substantive change from edition 2.0 is the license, which is now CC-BY
-(any version).
+   This is edition 2.3 of the TeXdraw documentation.
 
 * Menu:
 
@@ -208,7 +206,7 @@ the file 'texdraw.tex'.
    For use with LaTeX version 2.09, the user reads in the TeXdraw macros
 from the file 'texdraw.tex' and optionally defines the '\begin{texdraw}'
 / '\end{texdraw}' environment.
-     \documentstyle[11pt]{article}  % Article style with 11pt size option
+     \documentstyle[11pt]{article}  % Article style at 11pt size
      ...
      \input texdraw            % Read in the TeXdraw macros
      \newenvironment{texdraw}{\leavevmode\btexdraw}{\etexdraw}
@@ -224,7 +222,7 @@ from the file 'texdraw.tex' and optionally defines the '\begin{texdraw}'
 '\end{texdraw}' environment, brings in the standard 'graphics' package
 and reads in the file 'texdraw.tex' containing the definitions of the
 TeXdraw macros.
-     \documentclass[11pt]{article}  % Article class with the 11pt size option
+     \documentclass[11pt]{article}  % Article class at 11pt size
      \usepackage{texdraw}           % TeXdraw commands
 
      \begin{document}
@@ -1699,7 +1697,8 @@ shared between the commands used to draw these blocks.
      \arrowheadtype t:F  \arrowheadsize l:0.08 w:0.04
      \def\pl {$\scriptscriptstyle +$} \def\mn {$\scriptscriptstyle -$}
 
-     \move (0 +0.63) \move (0 -0.60) \move (0 0) % compensate for text size
+     \move (0 +0.63) \move (0 -0.60) % compensate for the text size
+     \move (0 0)
 
      % Input to the first stage
      \bsegment
@@ -2105,12 +2104,6 @@ Appendix D Alphabetic listing of commands
      factor is the product of the unit scale factor and the segment
      scale factor.
 
-'\texdrawbox { ... }'
-     Create a TeXdraw box.  The argument contains TeXdraw commands.
-     This macro returns a TeX box with height equal to the height of the
-     drawing and width equal to the width of the drawing.  The depth of
-     the box is zero.
-
 '\textref h:H-REF v:V-REF'
      Set the text reference point for subsequent text commands.  The
      horizontal reference point H-REF is one of 'L', 'C' or 'R' (left,
@@ -2382,49 +2375,49 @@ Concept Index
 
 
 Tag Table:
-Node: Top587
-Node: Introduction2093
-Node: Distribution4097
-Node: TeXdraw Commands4353
-Node: Accessing TeXdraw4969
-Ref: Accessing TeXdraw-Footnote-19721
-Node: Command syntax9885
-Node: TeXdraw coordinates11086
-Node: Coordinate specification12461
-Node: Line vectors13665
-Node: TeX text19436
-Node: Circles and arcs23769
-Node: Bezier curves27778
-Node: Fill commands29767
-Node: Drawing Segments and Scaling32308
-Node: Drawing segments32742
-Node: Drawing paths33842
-Node: Saving positions35472
-Node: Scaling coordinates38380
-Node: Drawing size41369
-Node: Initial current position43189
-Node: Using TeXdraw with LaTeX43987
-Node: PostScript printer drivers45465
-Node: More Details46601
-Node: Errors while using TeXdraw47103
-Node: Extending TeXdraw49427
-Node: Scaling50999
-Node: Resolution51945
-Node: Text placement53651
-Node: Intermediate PostScript file54727
-Node: How TeXdraw merges graphics and text56488
-Ref: How TeXdraw merges graphics and text-Footnote-157871
-Node: PostScript Commands57929
-Node: TeXdraw Toolbox62920
-Node: Coordinate parsing63486
-Node: Real arithmetic65649
-Node: Arrow curve66457
-Node: Examples70510
-Node: Block diagram70782
-Node: Filter response graph77535
-Node: Geometric construction79220
-Node: Command Listing81496
-Node: Command Index92966
-Node: Concept Index98002
+Node: Top586
+Node: Introduction1995
+Node: Distribution3999
+Node: TeXdraw Commands4255
+Node: Accessing TeXdraw4871
+Ref: Accessing TeXdraw-Footnote-19601
+Node: Command syntax9765
+Node: TeXdraw coordinates10966
+Node: Coordinate specification12341
+Node: Line vectors13545
+Node: TeX text19316
+Node: Circles and arcs23649
+Node: Bezier curves27658
+Node: Fill commands29647
+Node: Drawing Segments and Scaling32188
+Node: Drawing segments32622
+Node: Drawing paths33722
+Node: Saving positions35352
+Node: Scaling coordinates38260
+Node: Drawing size41249
+Node: Initial current position43069
+Node: Using TeXdraw with LaTeX43867
+Node: PostScript printer drivers45345
+Node: More Details46481
+Node: Errors while using TeXdraw46983
+Node: Extending TeXdraw49307
+Node: Scaling50879
+Node: Resolution51825
+Node: Text placement53531
+Node: Intermediate PostScript file54607
+Node: How TeXdraw merges graphics and text56368
+Ref: How TeXdraw merges graphics and text-Footnote-157751
+Node: PostScript Commands57809
+Node: TeXdraw Toolbox62800
+Node: Coordinate parsing63366
+Node: Real arithmetic65529
+Node: Arrow curve66337
+Node: Examples70390
+Node: Block diagram70662
+Node: Filter response graph77424
+Node: Geometric construction79109
+Node: Command Listing81385
+Node: Command Index92597
+Node: Concept Index97633
 
 End Tag Table
diff --git a/Master/texmf-dist/doc/support/texdraw/ChangeLog b/Master/texmf-dist/doc/support/texdraw/ChangeLog
index d4339f49e7b..21bfad19bd1 100644
--- a/Master/texmf-dist/doc/support/texdraw/ChangeLog
+++ b/Master/texmf-dist/doc/support/texdraw/ChangeLog
@@ -1,7 +1,18 @@
-$Id: ChangeLog,v 2.0a 2019/03/28 texdraw-V2R0a $
+$Id: ChangeLog 2.4 2019/04/18 TeXdraw-v2r3 $
 
-V2R0a 2019/03/28
-  - Change license to CC-BY (any version).
+v2r3 2019-04-18
+  - Repackaged with Creative Commons license
+
+v2r2 2000/05/04
+  - Internal modifications for compatibility with eplain, no changes to the
+    user interface
+
+v2r1 1999/11/15
+  - Internal modifications for better compatibility with amsmath, no changes
+    to the user interface
+
+v2r0a 1998/12/11
+  - Changed packaging - no changes to the TeX files
 
 V2R0  1995/12/17
   - Interface to standard LaTeX2e graphics package
diff --git a/Master/texmf-dist/doc/support/texdraw/Makefile.manual b/Master/texmf-dist/doc/support/texdraw/Makefile
index 49edf40c3f2..589b302bf32 100644
--- a/Master/texmf-dist/doc/support/texdraw/Makefile.manual
+++ b/Master/texmf-dist/doc/support/texdraw/Makefile
@@ -1,4 +1,6 @@
-# This trivial Makefile is public domain.
+# Makefile for texdraw.texi
+
+# $Id: Makefile 2.2 2019/04/18 TeXdraw-v2r3 $
 
 doc = texdraw
 
@@ -11,5 +13,10 @@ ps $(doc).ps: $(doc).texi Makefile
 info $(doc).info: $(doc).texi
 	makeinfo $(doc).texi
 
+mostlyclean:
+	rm -f $(doc).ps? $(doc).p1?
+	rm -f $(doc).cp $(doc).cps $(doc).fn $(doc).fns
+	rm -f $(doc).aux $(doc).log $(doc).toc $(doc).dvi
+
 clean:
 	rm -f $(doc).?? $(doc).???
diff --git a/Master/texmf-dist/doc/support/texdraw/README b/Master/texmf-dist/doc/support/texdraw/README
index 370b91dea05..67403b05bbf 100644
--- a/Master/texmf-dist/doc/support/texdraw/README
+++ b/Master/texmf-dist/doc/support/texdraw/README
@@ -1,6 +1,6 @@
-This file describes the contents of the distribution for TeXdraw.
+TeXdraw distribution
 
-$Id: README,v 2.0a 2019/03/28 texdraw-V2R0a $
+$Id: README 2.8 2019/04/18 TeXdraw-v2r3 $
 
 The TeXdraw package consists of a set of macro definitions for the TeX
 typesetting program.  These macros allow the user to produce PostScript
@@ -11,7 +11,7 @@ from <within> TeX, using TeX fonts for labelling the drawing.
 
 Basic drawing features include:
 (1) moves, lines and arrow vectors
-    - selectable gray level, line width pattern, arrowhead size and type
+    - selectable gray level, line width, pattern, arrowhead size and type
 (2) circles, ellipses, arcs, and Bezier curves
 (3) general fill command to fill a region defined by lines and Bezier
     curves (selectable gray level)
@@ -30,25 +30,18 @@ The extensibility features include,
 (2) local segment scaling
 (3) saving and restoring positions using symbolic positions
 
-Version 2.0a was rleased in March 2019; the only substantive
-modification was to change the license to CC-BY (any version).
-Also, an Info direntry is created by texdraw.texi, and
-minor changes were made to this README and other documentation files.
-For the distribution:
-- A PDF version of the manual was added.
-- the Texinfo source files (texindex.c, texi2dvi, etc.) were removed, as
-they are readily available elsewhere and cannot be kept up to date here.
+The distribution as a compressed tar file is available from:
+  http://www-mmsp.ECE.McGill.CA/MMSP/Documents/Software
 
 =====
-Peter Kabal                            peter dot kabal at mcgill dot ca
-Department of Electrical Engineering
+Peter Kabal                            peter.kabal@McGill.CA
+Department of Electrical & Computer Engineering
 McGill University
 Montreal, Quebec
 
-
 =====
 The distribution consists of the TeXdraw macros themselves, files with
-auxiliary macros, and the TeXdraw manual (Texinfo format).
+auxiliary macros, and the TeXdraw manual (PosScript/PDF).
 
 Distribution Contents:
 ----------------------
@@ -63,64 +56,26 @@ TeXdraw macros (main directory):
   txdtools.tex        - TeXdraw toolbox for extending TeXdraw
   txdps.tex           - TeXdraw macros for accessing PostScript macros
   blockdiagram.tex    - Block diagram macros for TeXdraw
+
+TeXdraw examples (directory examples/):
   txdexamp.tex        - plain TeX code for the examples in the manual
   txdexamp.latex      - LaTeX2e code for the examples in the manual
 
 TeXdraw documentation (directory manual/):
-  texdraw.pdf         - PDF version of the manual
   texdraw.ps          - PostScript version of the manual
+  texdraw.pdf         - PDF version of the manual
   texdraw.texi        - Texinfo source file for the TeXdraw manual
 
 ===============================================
-The following notes on setup are for Unix systems.
-
 Initial Tests:
 
-(1) Print the PostScript version of the manual ("texdraw.ps") to see the
-    capabilities of TeXdraw. (Or PDF.)
+(1) View the PostScript or pdf version of the manual ("texdraw.ps" or
+    "texdraw.pdf") to see the capabilities of TeXdraw.
 (2) Try TeX'ing the examples file.  Assuming plain TeX is invoked with the
     command "tex" and LaTeX2e is invoked with the command "latex"
     % tex txdexamp
     ... or ...
     % latex texdexamp.latex
-(3) Printing the examples using the appropriate printer driver program (only
-    dvips can be used with the plain TeX version of the examples),
+(3) Printing the examples using the appropriate printer driver program
+    (only dvips can be used with the plain TeX version of the examples),
     % dvips txdexamp
-
-=====
-Permanent Setup:
-
-(1) Private copy of TeXdraw.
-    Move the TeXdraw sources files ("texdraw.sty", texdraw.tex",
-    "txdtools.tex" and "txdps.tex") to an appropriate directory.  If you are
-    keeping private versions of the files, consider using the directory
-    ~mylogin/tex . With many versions of TeX, including this directory in
-    the TeX input path variable (the environment variable TEXINPUTS) allows
-    you to refer to the files in TeX without specifying the full pathname.
-    With the C shell, a line in the ".login" file sets the environment
-    variable TEXINPUTS
-    % setenv TEXINPUTS ".:$HOME/tex:".
-    The last part of the path string should terminate with a colon to have
-    the default directory of TeX files available.
-(2) Public copy of TeXdraw.
-    Move the TeXdraw source files ("texdraw.sty", "texdraw.tex",
-    "txdtools.tex" and "txdps.tex") to a directory that TeX searches by
-    default.  If installed from a distribution, this should be
-    handled by the package manager.
-
-=====
-Creating a TeXdraw manual from the sources:
-(1) Make sure "texdraw.tex", "txdtools.tex" and "texinfo.tex" will be found
-    by TeX.
-(2) To create the manual, you have to TeX the manual twice - the second
-    time to access the sorted indices and the cross-references.  The
-    program "texindex" sorts the indices.  (The distribution includes pre-
-    sorted indices that can be used).  Or the three steps can be replaced by
-    an invocation of the script "texi2dvi".
-    % tex texdraw.texinfo
-    % texindex texdraw
-    % tex texdraw.texinfo
-(3) If you have the printer driver program dvips, a PostScript version of the
-    manual is created as follows.
-    % dvips texdraw -o texdraw.ps
-(4) The targets in manual/Makefile handle this.
diff --git a/Master/texmf-dist/doc/support/texdraw/examples/txdexamp.latex b/Master/texmf-dist/doc/support/texdraw/examples/txdexamp.latex
new file mode 100644
index 00000000000..c6477e617c6
--- /dev/null
+++ b/Master/texmf-dist/doc/support/texdraw/examples/txdexamp.latex
@@ -0,0 +1,514 @@
+% TeXdraw examples for latex
+
+% $Id: txdexamp.latex 2.1 1999/11/15 TeXdraw-v2r3 $
+
+% These examples are taken from the TeXdraw manual.
+
+%  Peter Kabal
+%  Department of Electrical & Computer Engineering
+%  McGill University
+%  3480 University
+%  Montreal, Quebec
+%  Canada  H3A 2A7
+
+%  kabal@ECE.McGill.CA
+ 
+\documentclass [11pt]{article}
+\usepackage {texdraw}
+
+\input txdtools
+\let\et=\etexdraw
+\def\etexdraw{\drawbb\et}
+
+\begin{document}
+
+\noindent
+TeXdraw examples using LaTeX.
+
+\bigskip
+\begin{center}
+\begin{texdraw}
+  \avec (0 0.8) \textref h:C v:B \htext (0 0.9){\sl y}
+  \move (0 0) \avec (0.8 0) \textref h:L v:C \htext(0.9 0){\sl x}
+  \move (0 1.0)
+\end{texdraw}
+\end{center}
+
+\bigskip
+\begin{center}
+\begin{texdraw}
+  \drawdim{cm} \linewd 0.02
+  \move(2 2) \lvec(3 3) \lvec(2 4) \lvec(1 3) \lvec(2 2)
+  \textref h:C v:C \htext(2 3){$\sum \rho_n$}
+\end{texdraw}
+\end{center}
+
+\bigskip
+\begin{center}
+\begin{texdraw}
+  \drawdim in
+  \linewd 0.03 \setgray 0.6 \arrowheadtype t:F \avec(0.5 0.5)
+  \linewd 0.01 \setgray 0   \arrowheadtype t:V \avec(1.0 0.5)
+  \linewd 0.015 \lpatt(0.067 0.1) \lvec (1.5 0)
+  \linewd 0.02 \lpatt() \arrowheadtype t:T \avec(2.0 0.5)
+  \arrowheadtype t:H \avec(2.5 0.5)
+  \setgray 0.4 \arrowheadtype t:W \avec(3.0 0)
+  \textref h:R v:T \htext (0.35 0.50){\tt t:F}
+  \textref h:R v:T \htext (1.0 0.43){\tt t:V}
+  \textref h:R v:T \htext (1.82 0.50){\tt t:T}
+  \textref h:R v:T \htext (2.5 0.43){\tt t:H}
+  \textref h:R v:B \htext (2.8 0){\tt t:W}
+\end{texdraw}
+\end{center}
+
+\bigskip
+\begin{center}
+\begin{texdraw}
+  \newcommand{\bdot}{\bsegment
+                  \fcir f:0 r:0.02
+                \esegment}
+  \newcommand{\Ttext}[1]{\bsegment
+                  \textref h:C v:B \htext (0 +0.06){#1}
+                \esegment}
+  \newcommand{\Btext}[1]{\bsegment
+                  \textref h:C v:T \htext (0 -0.06){#1}
+                \esegment}
+  \newcommand{\Ltext}[1]{\bsegment
+                  \textref h:R v:C \htext (-0.08 0){#1}
+                \esegment}
+  \newcommand{\Rtext}[1]{\bsegment
+                  \textref h:L v:C \htext (+0.08 0){#1}
+                \esegment}
+  \move (-1.5 0)
+  \bsegment
+    \move (+1.55 +0.45) \move (-1.55 -0.45) \move (0 0)
+    \Ttext{Horizontal Text}
+    \bdot                   \Btext{\tt h:C v:C}
+    \move (-0.9 0)    \bdot \Ltext{\tt h:L v:C}
+    \move (+0.9 0)    \bdot \Rtext{\tt h:R v:C}
+    \move (0 +0.3)    \bdot \Ttext{\tt h:C v:T}
+    \move (0 -0.3)    \bdot \Btext{\tt h:C v:B}
+    \move (-0.9 -0.3) \bdot \Ltext{\tt h:L v:B}
+    \lvec (-0.9 +0.3) \bdot \Ltext{\tt h:L v:T}
+    \lvec (+0.9 +0.3) \bdot \Rtext{\tt h:R v:T}
+    \lvec (+0.9 -0.3) \bdot \Rtext{\tt h:R v:B}
+    \lvec (-0.9 -0.3)
+  \esegment
+  \newcommand{\atext}{\rtext td:45 }
+  \newcommand{\ATtext}[1]{\bsegment
+                   \setsegscale 0.707
+                   \textref h:C v:B \atext (-0.06 +0.06){#1}
+                 \esegment}
+  \newcommand{\ABtext}[1]{\bsegment
+                   \setsegscale 0.707
+                   \textref h:C v:T \atext (+0.060 -0.06){#1}
+                 \esegment}
+  \newcommand{\ALtext}[1]{\bsegment
+                   \setsegscale 0.707
+                   \textref h:R v:C \atext (-0.08 -0.08){#1}
+                 \esegment}
+  \newcommand{\ARtext}[1]{\bsegment
+                   \setsegscale 0.707
+                   \textref h:L v:C \atext (+0.08 +0.08){#1}
+                 \esegment}
+  \move (+1.5 0)
+  \bsegment
+    \move (+1.33 +1.33) \move (-1.33 -1.33) \move (0 0)
+    \setsegscale 0.707
+    \ATtext{Rotated Text}
+    \bdot                   \ABtext{\tt h:C v:C}
+    \move (-0.9 -0.9) \bdot \ALtext{\tt h:L v:C}
+    \move (+0.9 +0.9) \bdot \ARtext{\tt h:R v:C}
+    \move (-0.3 +0.3) \bdot \ATtext{\tt h:C v:T}
+    \move (+0.3 -0.3) \bdot \ABtext{\tt h:C v:B}
+    \move (-0.6 -1.2) \bdot \ALtext{\tt h:L v:B}
+    \lvec (-1.2 -0.6) \bdot \ALtext{\tt h:L v:T}
+    \lvec (+0.6 +1.2) \bdot \ARtext{\tt h:R v:T}
+    \lvec (+1.2 +0.6) \bdot \ARtext{\tt h:R v:B}
+    \lvec (-0.6 -1.2)
+  \esegment
+\end{texdraw}
+\end{center}
+
+\vfill
+\newpage
+
+
+\bigskip
+\begin{center}
+\begin{texdraw}
+  \move(-0.75 -0.25) \lvec (-0.75 +0.5) \lvec (+0.75 +0.5)
+  \lvec(+0.75 -0.25) \ifill f:0.9         % fill the region
+  \move(0 0)
+             \avec(-0.75 -0.25) \textref h:R v:C \htext{H-text}
+  \move(0 0) \avec(-0.75 +0.25) \textref h:R v:B \htext{H-text}
+  \move(0 0) \avec(0 +0.5)      \textref h:L v:T \vtext{V-text}
+  \move(0 0) \avec(+0.75 +0.25) \textref h:L v:B \htext{H-text}
+  \move(0 0) \avec(+0.75 -0.25) \textref h:L v:C \htext{H-text}
+  \move (-1.15 -0.3) \move (+1.15 +0.92)  % increase the size of the drawing
+\end{texdraw}
+\end{center}
+
+\bigskip
+\begin{center}
+\begin{texdraw}
+  \linewd 0.02
+  \fcir f:0.7 r:1
+  \larc r:1 sd:45 ed:135
+  \lvec ( 0.707  0.707) \move (0 0) \lvec (-0.707 +0.707)
+\end{texdraw}
+\end{center}
+
+\bigskip
+\begin{center}
+\begin{texdraw}
+  \newcommand{\Ltext}[1]{\bsegment
+                  \textref h:R v:C \htext (-0.08 0){#1}
+                \esegment}
+  \newcommand{\Rtext}[1]{\bsegment
+                  \textref h:L v:C \htext (+0.08 0){#1}
+                \esegment}
+  \newcommand{\bdot}{\fcir f:0 r:0.02 }
+  \newcommand{\Ldot}[1]{\bdot \Ltext{#1}}
+  \newcommand{\Rdot}[1]{\bdot \Rtext{#1}}
+  \move (-2 0)
+  \bsegment
+    \lpatt (0.033)
+    \move (0 0) \Ldot{0} \lvec (0 1) \Ldot{1}
+    \lvec (1 1) \Rdot{2} \lvec (1 0) \Rdot{3}
+    \lpatt ()
+    \move (0 0) \clvec (0 1)(1 1)(1 0)
+  \esegment
+  \move (0 0)
+  \bsegment
+    \lpatt (0.033)
+    \move (0 0) \Ldot{0}  \lvec (0.5 0.8) \Ldot{1}
+    \lvec (1.5 0.8) \Rdot{2} \lvec (1 0) \Rdot{3}
+    \lpatt ()
+    \move (0 0) \clvec (0.5 1)(1.5 1)(1 0)
+  \esegment
+  \move ( 2 0)
+  \bsegment
+    \lpatt (0.033)
+    \move (0 0) \Ldot{0} \lvec (0 1) \Ldot{1}
+    \lvec (1 0) \Rdot{2} \lvec (1 1) \Rdot{3}
+    \lpatt ()
+    \move (0 0) \clvec (0 1)(1 0)(1 1)
+  \esegment
+\end{texdraw}
+\end{center}
+
+\bigskip
+\begin{center}
+\begin{texdraw}
+\move (0.5 0)
+\lvec (0 0.5) \clvec (0.5 0.85)(1 0.65)(1.5 1)
+\lvec (2 0.5) \clvec (1.5 0.15)(1 0.35)(0.5 0)
+\lfill f:0.8
+\end{texdraw}
+\end{center}
+
+\vfill
+\newpage
+
+
+\bigskip
+\newcommand{\tbox}[1]{\bsegment
+               \lvec (0 +0.25)    \lvec (0.75 +0.25)
+               \lvec (0.75 -0.25) \lvec (0 -0.25) \lvec (0 0)
+               \textref h:C v:C \htext (0.375 0){#1}
+               \savepos (0.75 0)(*ex *ey)
+             \esegment
+             \move (*ex *ey)}
+\begin{center}
+\begin{texdraw}
+  \ravec (1 0) \tbox{$H(z)$} \ravec (1 0)
+\end{texdraw}
+\end{center}
+
+\bigskip
+\def\cavec (#1 #2)(#3 #4)(#5 #6){
+  \clvec (#1 #2)(#3 #4)(#5 #6)
+  \cossin (#3 #4)(#5 #6)\cosa\sina
+  \rmove (0 0) % stroke the Bezier curve
+  \bsegment
+    \drawdim in \setsegscale 0.05
+    \move ({-\cosa} -\sina)  \avec (0 0)
+  \esegment}
+
+\def\caw (#1 #2){
+  \currentpos \xa\ya
+  \cossin ({\xa} \ya)(#1 #2)\cosa\sina
+
+% The nominal wiggly curve is (0 0) (1+dx dy) (-dx -dy) (1 0)
+% Find the rotated offset (dx dy) -> (du dv)
+  \rotatecoord (0.4 0.1)\cosa\sina \du\dv
+
+% calculate the length of the vector
+  \vectlen ({\xa} \ya)(#1 #2)\len
+
+% draw the curve in normalized units
+  \bsegment
+    \setsegscale {\len}
+    \realadd \cosa \du \tmpa  \realadd \sina \dv \tmpb
+    \cavec ({\tmpa} \tmpb)({-\du} -\dv)({\cosa} \sina)
+  \esegment
+
+  \move (#1 #2)}
+
+% rotate a coordinate (x y)
+% arguments: (x y) cosa sina x' y'
+%  x' = cosa * x - sina * y;  y' = sina * x + cosa * y
+\def\rotatecoord (#1 #2)#3#4#5#6{
+  \getpos (#1 #2)\xarg\yarg
+  \realmult \xarg {#3} \tmpa  \realmult \yarg {#4} \tmpb
+  \realadd \tmpa {-\tmpb} #5
+  \realmult \xarg {#4} \tmpa  \realmult \yarg {#3} \tmpb
+  \realadd \tmpa \tmpb #6}
+
+\begin{center}
+\begin{texdraw}
+  \arrowheadtype t:W
+  \move (0 0)
+  \cavec (1.4 0.1)(-0.4 -0.1)(1 0)
+  \move (1 0) \caw (1 1) \htext{tip at \tt (1 1)}
+  \move (1 0) \caw (2 1) \htext{tip at \tt (2 1)}
+  \move (1 0) \caw (2 0) \htext{tip at \tt (2 0)}
+  \move (0 1.13) \move (0 -0.04)
+\end{texdraw}
+\end{center}
+
+\vfill
+\newpage
+
+
+\bigskip
+\def\delay {\bsegment
+              \setsegscale 0.3
+              \lvec (0 +0.5) \lvec (1 +0.5) \lvec (1 -0.5)
+              \lvec (0 -0.5) \lvec (0 0)
+              \textref h:C v:C  \htext (0.5 0){$z^{-1}$}
+              \savepos (1 0)(*ex *ey)
+            \esegment
+            \move (*ex *ey)}
+\def\bdot {\fcir f:0 r:0.02 }
+\def\Ttext #1{\bsegment
+                \textref h:C v:B  \htext (0 +0.06){#1}
+              \esegment}
+\def\Btext #1{\bsegment
+                \textref h:C v:T  \htext (0 -0.06){#1}
+              \esegment}
+\def\Ltext #1{\bsegment
+                \textref h:R v:C  \htext (-0.06 0){#1}
+              \esegment}
+\def\Rtext #1{\bsegment
+                \textref h:L v:C  \htext (+0.06 0){#1}
+              \esegment}
+\def\cradius {0.08}
+\def\pluss {\bsegment
+              \setsegscale {\cradius}
+              \move (-0.5 0) \lvec (+0.5 0)
+              \move (0 -0.5) \lvec (0 +0.5)
+            \esegment}
+\def\pcir {\lcir r:{\cradius} \pluss}
+\def\puttext (#1 #2)#3{\bsegment
+                         \setsegscale {\cradius}
+                         \textref h:C v:C \htext (#1 #2){#3}
+                       \esegment}
+\def\putwnw #1{\puttext (-1.7 +1.2){#1}}
+\def\putwsw #1{\puttext (-1.7 -1.2){#1}}
+\def\putn   #1{\puttext ( 0   +2  ){#1}}
+\def\puts   #1{\puttext ( 0   -2  ){#1}}
+\def\avectoc (#1 #2){\currentpos \xa\ya
+                     \cossin ({\xa} \ya)(#1 #2)\cosa\sina
+                     \savepos (#1 #2)(*tx *ty)
+                     \bsegment
+                       \move (*tx *ty)
+                       \setsegscale {\cradius}
+                       \rmove ({-\cosa} -\sina)
+                       \savecurrpos (*ex *ey)
+                     \esegment
+                     \avec (*ex *ey)
+                     \move (#1 #2)}
+\def\avecfrc (#1 #2){\currentpos \xa\ya
+                     \cossin ({\xa} \ya)(#1 #2)\cosa\sina
+                     \bsegment
+                       \setsegscale {\cradius}
+                       \move ({\cosa} \sina)
+                       \savecurrpos (*ex *ey)
+                     \esegment
+                     \move (*ex *ey)
+                     \avec (#1 #2)}
+
+\begin{center}
+\begin{texdraw}
+\drawdim in
+\arrowheadtype t:F  \arrowheadsize l:0.08 w:0.04
+\def\pl {$\scriptscriptstyle +$} \def\mn {$\scriptscriptstyle -$}
+
+\move (0 +0.63) \move (0 -0.60) \move (0 0) % compensate for the text size
+
+% Input to the first stage
+\bsegment
+  \Ltext{$x(n)$}
+  \lvec (0.3 0) \bdot \lvec (0.3 +0.4)
+  \move (0.3 0) \lvec (0.3 -0.4)
+  \savepos (0.3 0)(*ex *ey)
+\esegment
+\move (*ex *ey)
+
+% first lattice stage
+\bsegment
+  \move (0 +0.4)  \avectoc (1.7 +0.4)
+  \pcir \putwnw{\pl} \puts{\mn}
+  \avecfrc (2.1 +0.4)
+  \move (0 -0.4)  \avec (0.4 -0.4) \delay \avectoc (1.7 -0.4)
+  \pcir \putwsw{\pl} \putn{\mn}
+  \avecfrc (2.1 -0.4)
+  \move (0.9 +0.4)  \bdot  \avectoc (1.7 -0.4)
+  \move (0.9 -0.4)  \bdot  \avectoc (1.7 +0.4)
+  \move (0.1 +0.42) \Ttext {$f_0(n)$}
+  \move (2.0 +0.42) \Ttext {$f_1(n)$}
+  \move (0.1 -0.4)  \Btext {$b_0(n)$}
+  \move (2.0 -0.4)  \Btext {$b_1(n)$}
+  \textref h:L v:B  \htext (1.15 +0.2){$K_1$}
+  \textref h:L v:T  \htext (1.15 -0.2){$K_1$}
+  \savepos (2.1 0)(*ex *ey)
+\esegment
+\move (*ex *ey)
+
+% center section
+\bsegment
+  \textref h:C v:C
+  \htext (0.3 +0.4){$\cdots$}
+  \htext (0.3 -0.4){$\cdots$}
+  \savepos (0.6 0)(*ex *ey)
+\esegment
+\move (*ex *ey)
+
+% last lattice stage
+\bsegment
+  \move (0 +0.4)  \avectoc (1.7 +0.4)
+  \pcir \putwnw{\pl} \puts{\mn}
+  \avecfrc (2.3 +0.4) \Rtext{$e(n)$}
+  \move (0 -0.4)  \avec (0.4 -0.4) \delay \avectoc (1.7 -0.4)
+  \pcir \putwsw{\pl} \putn{\mn}
+  \avecfrc (2.1 -0.4)
+  \move (0.9 +0.4)  \bdot  \avectoc (1.7 -0.4)
+  \move (0.9 -0.4)  \bdot  \avectoc (1.7 +0.4)
+  \move (0.1 +0.42) \Ttext {$f_{P-1}(n)$}
+  \move (2.0 +0.42) \Ttext {$f_P(n)$}
+  \move (0.1 -0.4)  \Btext {$b_{P-1}(n)$}
+  \move (2.0 -0.4)  \Btext {$b_P(n)$}
+  \textref h:L v:B  \htext (1.15 +0.2){$K_P$}
+  \textref h:L v:T  \htext (1.15 -0.2){$K_P$}
+\esegment
+\end{texdraw}
+\end{center}
+
+\bigskip
+\begin{center}
+\begin{texdraw}
+\arrowheadtype t:F  \arrowheadsize l:0.08 w:0.04
+\def\ds {\displaystyle}
+\def\ticklab (#1 #2)#3{\move(#1 #2)
+                       \bsegment
+                         \lvec (0 0.05)
+                         \textref h:C v:T \htext (0 -0.05){#3}
+                       \esegment}
+\def\Rtext #1{\bsegment
+                \textref h:L v:C \htext ( 0.08 0){#1}
+              \esegment}
+
+\move (2.4 -0.32)    % move to set the size
+
+\move (0 0)
+% Axes
+\avec (0  1.4)
+\move (0 0) \avec (2.2 0) \Rtext{$\omega$}
+\ticklab (0 0)   {0}
+\ticklab (0.8 0) {$\ds {\pi \over  2N} $}
+\ticklab (1.2 0) {$\omega_s$}
+\ticklab (1.6 0) {$\ds {\pi \over N} $}
+
+\linewd 0.025
+\move (0 1)
+\lvec (0.4 1)
+\lvec (0.44 0.998)
+\lvec (0.48 0.988)
+\lvec (0.52 0.973)
+\lvec (0.56 0.951)
+\lvec (0.60 0.923)
+\lvec (0.64 0.891)
+\lvec (0.68 0.852)
+\lvec (0.72 0.809)
+\lvec (0.76 0.760)
+\lvec (0.80 0.707)
+\lvec (0.84 0.649)
+\lvec (0.88 0.587)
+\lvec (0.92 0.522)
+\lvec (0.96 0.454)
+\lvec (1.00 0.382)
+\lvec (1.04 0.309)
+\lvec (1.08 0.233)
+\lvec (1.12 0.156)
+\lvec (1.16 0.078)
+\lvec (1.20 0)
+\lvec (1.9 0)
+\end{texdraw}
+\end{center}
+
+\bigskip
+\begin{center}
+\begin{texdraw}
+\arrowheadtype t:V \arrowheadsize l:0.08 w:0.04
+\linewd 0.01
+\setunitscale 1.5            % circle will have radius 1.5 inches
+
+\def\Btext #1{\bsegment
+                \textref h:C v:T \htext (0 -0.04){#1}
+              \esegment}
+\def\Ttext #1{\bsegment
+                \textref h:C v:B \htext (0  0.04){#1}
+              \esegment}
+\def\Ltext #1{\bsegment
+                \textref h:R v:C \htext (-0.04 0){#1}
+              \esegment}
+\def\bdot {\fcir f:0 r:0.0133 }
+\def\vtick {\bsegment
+              \move (0 -0.05) \lvec (0  0.05)
+            \esegment}
+\def\htick {\bsegment
+              \move (-0.05 0) \lvec ( 0.05 0)
+            \esegment}
+\def\Hlen #1#2{\bsegment
+                 \vtick \avec ({#1} 0) \vtick \avec (0 0)
+                 \relsegscale 0.5
+                 \move ({#1} 0) \Ttext {#2}
+               \esegment}
+\def\Vlen #1#2{\bsegment
+                 \htick \avec (0 {#1}) \htick \avec (0 0)
+                 \relsegscale 0.5
+                 \move (0 {#1}) \Ltext {#2}
+               \esegment}
+
+\lcir r:1                         % circle
+\move (-1.05 0) \lvec ( 1.05 0)   % axes
+\move (0 -1.05) \lvec (0  1.05)
+
+\move (0 0) \lvec (0.707 0.707) \bdot
+\rmove (0.02 0.02) \textref h:L v:B \htext {X}
+\move (0.707 -0.707) \bdot
+\textref h:R v:T \htext(-0.02 -0.02){O}
+
+\move (0.5 0)                     % center of ellipse
+\bsegment
+  \lellip rx:0.435 ry:0.804
+  \bdot \Btext {$\beta_2$}
+  \move (0 0.15) \Hlen {0.435}{$|\beta_1{+}\beta_3|$}
+  \move (-0.7 0) \Vlen {0.804}{$|\beta_1{-}\beta_3|$}
+\esegment
+\end{texdraw}
+\end{center}
+
+\end{document}
diff --git a/Master/texmf-dist/doc/support/texdraw/examples/txdexamp.tex b/Master/texmf-dist/doc/support/texdraw/examples/txdexamp.tex
new file mode 100644
index 00000000000..19d2eba14be
--- /dev/null
+++ b/Master/texmf-dist/doc/support/texdraw/examples/txdexamp.tex
@@ -0,0 +1,485 @@
+% TeXdraw examples
+
+% $Id: txdexamp.tex 2.1 1999/11/15 TeXdraw-v2r3 $
+
+% These examples are taken from the TeXdraw manual.  Note that the fonts
+% for text will be different from those in the manual -- here we use the
+% plain TeX defaults.
+
+%  Peter Kabal
+%  Department of Electrical & Computer Engineering
+%  McGill University
+%  3480 University
+%  Montreal, Quebec
+%  Canada  H3A 2A7
+
+%  kabal@ECE.McGill.CA
+ 
+\input texdraw
+\input txdtools
+\let\et=\etexdraw
+\def\etexdraw{\drawbb\et}
+
+\noindent
+TeXdraw examples using plain TeX.
+
+\bigskip
+\centertexdraw{
+  \avec (0 0.8) \textref h:C v:B \htext (0 0.9){\sl y}
+  \move (0 0) \avec (0.8 0) \textref h:L v:C \htext(0.9 0){\sl x}
+  \move (0 1.0)}
+
+\bigskip
+\centertexdraw{
+  \drawdim{cm} \linewd 0.02
+  \move(2 2) \lvec(3 3) \lvec(2 4) \lvec(1 3) \lvec(2 2)
+  \textref h:C v:C \htext(2 3){$\sum \rho_n$}
+}
+
+\bigskip
+\centertexdraw{
+  \drawdim in
+  \linewd 0.03 \setgray 0.6 \arrowheadtype t:F \avec(0.5 0.5)
+  \linewd 0.01 \setgray 0   \arrowheadtype t:V \avec(1.0 0.5)
+  \linewd 0.015 \lpatt(0.067 0.1) \lvec (1.5 0)
+  \linewd 0.02 \lpatt() \arrowheadtype t:T \avec(2.0 0.5)
+  \arrowheadtype t:H \avec(2.5 0.5)
+  \setgray 0.4 \arrowheadtype t:W \avec(3.0 0)
+  \textref h:R v:T \htext (0.35 0.50){\tt t:F}
+  \textref h:R v:T \htext (1.0 0.43){\tt t:V}
+  \textref h:R v:T \htext (1.82 0.50){\tt t:T}
+  \textref h:R v:T \htext (2.5 0.43){\tt t:H}
+  \textref h:R v:B \htext (2.8 0){\tt t:W}
+}
+
+\bigskip
+\centertexdraw{
+  \def\bdot {\bsegment
+               \fcir f:0 r:0.02
+             \esegment}
+  \def\Ttext #1{\bsegment
+                  \textref h:C v:B \htext (0 +0.06){#1}
+                \esegment}
+  \def\Btext #1{\bsegment
+                  \textref h:C v:T \htext (0 -0.06){#1}
+                \esegment}
+  \def\Ltext #1{\bsegment
+                  \textref h:R v:C \htext (-0.08 0){#1}
+                \esegment}
+  \def\Rtext #1{\bsegment
+                  \textref h:L v:C \htext (+0.08 0){#1}
+                \esegment}
+  \move (-1.5 0)
+  \bsegment
+    \move (+1.55 +0.45) \move (-1.55 -0.45) \move (0 0)
+    \Ttext{Horizontal Text}
+    \bdot                   \Btext{\tt h:C v:C}
+    \move (-0.9 0)    \bdot \Ltext{\tt h:L v:C}
+    \move (+0.9 0)    \bdot \Rtext{\tt h:R v:C}
+    \move (0 +0.3)    \bdot \Ttext{\tt h:C v:T}
+    \move (0 -0.3)    \bdot \Btext{\tt h:C v:B}
+    \move (-0.9 -0.3) \bdot \Ltext{\tt h:L v:B}
+    \lvec (-0.9 +0.3) \bdot \Ltext{\tt h:L v:T}
+    \lvec (+0.9 +0.3) \bdot \Rtext{\tt h:R v:T}
+    \lvec (+0.9 -0.3) \bdot \Rtext{\tt h:R v:B}
+    \lvec (-0.9 -0.3)
+  \esegment
+  \def\atext {\rtext td:45 }
+  \def\ATtext #1{\bsegment
+                   \setsegscale 0.707
+                   \textref h:C v:B \atext (-0.06 +0.06){#1}
+                 \esegment}
+  \def\ABtext #1{\bsegment
+                   \setsegscale 0.707
+                   \textref h:C v:T \atext (+0.060 -0.06){#1}
+                 \esegment}
+  \def\ALtext #1{\bsegment
+                   \setsegscale 0.707
+                   \textref h:R v:C \atext (-0.08 -0.08){#1}
+                 \esegment}
+  \def\ARtext #1{\bsegment
+                   \setsegscale 0.707
+                   \textref h:L v:C \atext (+0.08 +0.08){#1}
+                 \esegment}
+  \move (+1.5 0)
+  \bsegment
+    \move (+1.33 +1.33) \move (-1.33 -1.33) \move (0 0)
+    \setsegscale 0.707
+    \ATtext{Rotated Text}
+    \bdot                   \ABtext{\tt h:C v:C}
+    \move (-0.9 -0.9) \bdot \ALtext{\tt h:L v:C}
+    \move (+0.9 +0.9) \bdot \ARtext{\tt h:R v:C}
+    \move (-0.3 +0.3) \bdot \ATtext{\tt h:C v:T}
+    \move (+0.3 -0.3) \bdot \ABtext{\tt h:C v:B}
+    \move (-0.6 -1.2) \bdot \ALtext{\tt h:L v:B}
+    \lvec (-1.2 -0.6) \bdot \ALtext{\tt h:L v:T}
+    \lvec (+0.6 +1.2) \bdot \ARtext{\tt h:R v:T}
+    \lvec (+1.2 +0.6) \bdot \ARtext{\tt h:R v:B}
+    \lvec (-0.6 -1.2)
+  \esegment
+}
+
+\vfill
+\eject
+
+
+\bigskip
+\centertexdraw{
+  \move(-0.75 -0.25) \lvec (-0.75 +0.5) \lvec (+0.75 +0.5)
+  \lvec(+0.75 -0.25) \ifill f:0.9         % fill the region
+  \move(0 0)
+             \avec(-0.75 -0.25) \textref h:R v:C \htext{H-text}
+  \move(0 0) \avec(-0.75 +0.25) \textref h:R v:B \htext{H-text}
+  \move(0 0) \avec(0 +0.5)      \textref h:L v:T \vtext{V-text}
+  \move(0 0) \avec(+0.75 +0.25) \textref h:L v:B \htext{H-text}
+  \move(0 0) \avec(+0.75 -0.25) \textref h:L v:C \htext{H-text}
+  \move (-1.15 -0.3) \move (+1.15 +0.92)  % increase the size of the drawing
+}
+
+\bigskip
+\centertexdraw{
+  \linewd 0.02
+  \fcir f:0.7 r:1
+  \larc r:1 sd:45 ed:135
+  \lvec ( 0.707  0.707) \move (0 0) \lvec (-0.707 +0.707)
+}
+
+\bigskip
+\centertexdraw{
+  \def\Ltext #1{\bsegment
+                  \textref h:R v:C \htext (-0.08 0){#1}
+                \esegment}
+  \def\Rtext #1{\bsegment
+                  \textref h:L v:C \htext (+0.08 0){#1}
+                \esegment}
+  \def\bdot {\fcir f:0 r:0.02 }
+  \def\Ldot #1{\bdot \Ltext{#1}}
+  \def\Rdot #1{\bdot \Rtext{#1}}
+  \move (-2 0)
+  \bsegment
+    \lpatt (0.033)
+    \move (0 0) \Ldot{0} \lvec (0 1) \Ldot{1}
+    \lvec (1 1) \Rdot{2} \lvec (1 0) \Rdot{3}
+    \lpatt ()
+    \move (0 0) \clvec (0 1)(1 1)(1 0)
+  \esegment
+  \move (0 0)
+  \bsegment
+    \lpatt (0.033)
+    \move (0 0) \Ldot{0}  \lvec (0.5 0.8) \Ldot{1}
+    \lvec (1.5 0.8) \Rdot{2} \lvec (1 0) \Rdot{3}
+    \lpatt ()
+    \move (0 0) \clvec (0.5 1)(1.5 1)(1 0)
+  \esegment
+  \move ( 2 0)
+  \bsegment
+    \lpatt (0.033)
+    \move (0 0) \Ldot{0} \lvec (0 1) \Ldot{1}
+    \lvec (1 0) \Rdot{2} \lvec (1 1) \Rdot{3}
+    \lpatt ()
+    \move (0 0) \clvec (0 1)(1 0)(1 1)
+  \esegment
+}
+
+\bigskip
+\centertexdraw{
+\move (0.5 0)
+\lvec (0 0.5) \clvec (0.5 0.85)(1 0.65)(1.5 1)
+\lvec (2 0.5) \clvec (1.5 0.15)(1 0.35)(0.5 0)
+\lfill f:0.8
+}
+
+\vfill
+\eject
+
+
+\bigskip
+\def\tbox #1{\bsegment
+               \lvec (0 +0.25)    \lvec (0.75 +0.25)
+               \lvec (0.75 -0.25) \lvec (0 -0.25) \lvec (0 0)
+               \textref h:C v:C \htext (0.375 0){#1}
+               \savepos (0.75 0)(*ex *ey)
+             \esegment
+             \move (*ex *ey)}
+\centertexdraw{
+  \ravec (1 0) \tbox{$H(z)$} \ravec (1 0)
+}
+
+\bigskip
+\def\cavec (#1 #2)(#3 #4)(#5 #6){
+  \clvec (#1 #2)(#3 #4)(#5 #6)
+  \cossin (#3 #4)(#5 #6)\cosa\sina
+  \rmove (0 0) % stroke the Bezier curve
+  \bsegment
+    \drawdim in \setsegscale 0.05
+    \move ({-\cosa} -\sina)  \avec (0 0)
+  \esegment}
+
+\def\caw (#1 #2){
+  \currentpos \xa\ya
+  \cossin ({\xa} \ya)(#1 #2)\cosa\sina
+
+% The nominal wiggly curve is (0 0) (1+dx dy) (-dx -dy) (1 0)
+% Find the rotated offset (dx dy) -> (du dv)
+  \rotatecoord (0.4 0.1)\cosa\sina \du\dv
+
+% calculate the length of the vector
+  \vectlen ({\xa} \ya)(#1 #2)\len
+
+% draw the curve in normalized units
+  \bsegment
+    \setsegscale {\len}
+    \realadd \cosa \du \tmpa  \realadd \sina \dv \tmpb
+    \cavec ({\tmpa} \tmpb)({-\du} -\dv)({\cosa} \sina)
+  \esegment
+
+  \move (#1 #2)}
+
+% rotate a coordinate (x y)
+% arguments: (x y) cosa sina x' y'
+%  x' = cosa * x - sina * y;  y' = sina * x + cosa * y
+\def\rotatecoord (#1 #2)#3#4#5#6{
+  \getpos (#1 #2)\xarg\yarg
+  \realmult \xarg {#3} \tmpa  \realmult \yarg {#4} \tmpb
+  \realadd \tmpa {-\tmpb} #5
+  \realmult \xarg {#4} \tmpa  \realmult \yarg {#3} \tmpb
+  \realadd \tmpa \tmpb #6}
+
+\centertexdraw{
+  \arrowheadtype t:W
+  \move (0 0)
+  \cavec (1.4 0.1)(-0.4 -0.1)(1 0)
+  \move (1 0) \caw (1 1) \htext{tip at \tt (1 1)}
+  \move (1 0) \caw (2 1) \htext{tip at \tt (2 1)}
+  \move (1 0) \caw (2 0) \htext{tip at \tt (2 0)}
+  \move (0 1.13) \move (0 -0.04)
+}
+
+\vfill
+\eject
+
+
+\bigskip
+\def\delay {\bsegment
+              \setsegscale 0.3
+              \lvec (0 +0.5) \lvec (1 +0.5) \lvec (1 -0.5)
+              \lvec (0 -0.5) \lvec (0 0)
+              \textref h:C v:C  \htext (0.5 0){$z^{-1}$}
+              \savepos (1 0)(*ex *ey)
+            \esegment
+            \move (*ex *ey)}
+\def\bdot {\fcir f:0 r:0.02 }
+\def\Ttext #1{\bsegment
+                \textref h:C v:B  \htext (0 +0.06){#1}
+              \esegment}
+\def\Btext #1{\bsegment
+                \textref h:C v:T  \htext (0 -0.06){#1}
+              \esegment}
+\def\Ltext #1{\bsegment
+                \textref h:R v:C  \htext (-0.06 0){#1}
+              \esegment}
+\def\Rtext #1{\bsegment
+                \textref h:L v:C  \htext (+0.06 0){#1}
+              \esegment}
+\def\cradius {0.08}
+\def\pluss {\bsegment
+              \setsegscale {\cradius}
+              \move (-0.5 0) \lvec (+0.5 0)
+              \move (0 -0.5) \lvec (0 +0.5)
+            \esegment}
+\def\pcir {\lcir r:{\cradius} \pluss}
+\def\puttext (#1 #2)#3{\bsegment
+                         \setsegscale {\cradius}
+                         \textref h:C v:C \htext (#1 #2){#3}
+                       \esegment}
+\def\putwnw #1{\puttext (-1.7 +1.2){#1}}
+\def\putwsw #1{\puttext (-1.7 -1.2){#1}}
+\def\putn   #1{\puttext ( 0   +2  ){#1}}
+\def\puts   #1{\puttext ( 0   -2  ){#1}}
+\def\avectoc (#1 #2){\currentpos \xa\ya
+                     \cossin ({\xa} \ya)(#1 #2)\cosa\sina
+                     \savepos (#1 #2)(*tx *ty)
+                     \bsegment
+                       \move (*tx *ty)
+                       \setsegscale {\cradius}
+                       \rmove ({-\cosa} -\sina)
+                       \savecurrpos (*ex *ey)
+                     \esegment
+                     \avec (*ex *ey)
+                     \move (#1 #2)}
+\def\avecfrc (#1 #2){\currentpos \xa\ya
+                     \cossin ({\xa} \ya)(#1 #2)\cosa\sina
+                     \bsegment
+                       \setsegscale {\cradius}
+                       \move ({\cosa} \sina)
+                       \savecurrpos (*ex *ey)
+                     \esegment
+                     \move (*ex *ey)
+                     \avec (#1 #2)}
+
+\centertexdraw{
+\drawdim in
+\arrowheadtype t:F  \arrowheadsize l:0.08 w:0.04
+\def\pl {$\scriptscriptstyle +$} \def\mn {$\scriptscriptstyle -$}
+
+\move (0 +0.63) \move (0 -0.60) \move (0 0) % compensate for the text size
+
+% Input to the first stage
+\bsegment
+  \Ltext{$x(n)$}
+  \lvec (0.3 0) \bdot \lvec (0.3 +0.4)
+  \move (0.3 0) \lvec (0.3 -0.4)
+  \savepos (0.3 0)(*ex *ey)
+\esegment
+\move (*ex *ey)
+
+% first lattice stage
+\bsegment
+  \move (0 +0.4)  \avectoc (1.7 +0.4)
+  \pcir \putwnw{\pl} \puts{\mn}
+  \avecfrc (2.1 +0.4)
+  \move (0 -0.4)  \avec (0.4 -0.4) \delay \avectoc (1.7 -0.4)
+  \pcir \putwsw{\pl} \putn{\mn}
+  \avecfrc (2.1 -0.4)
+  \move (0.9 +0.4)  \bdot  \avectoc (1.7 -0.4)
+  \move (0.9 -0.4)  \bdot  \avectoc (1.7 +0.4)
+  \move (0.1 +0.42) \Ttext {$f_0(n)$}
+  \move (2.0 +0.42) \Ttext {$f_1(n)$}
+  \move (0.1 -0.4)  \Btext {$b_0(n)$}
+  \move (2.0 -0.4)  \Btext {$b_1(n)$}
+  \textref h:L v:B  \htext (1.15 +0.2){$K_1$}
+  \textref h:L v:T  \htext (1.15 -0.2){$K_1$}
+  \savepos (2.1 0)(*ex *ey)
+\esegment
+\move (*ex *ey)
+
+% center section
+\bsegment
+  \textref h:C v:C
+  \htext (0.3 +0.4){$\cdots$}
+  \htext (0.3 -0.4){$\cdots$}
+  \savepos (0.6 0)(*ex *ey)
+\esegment
+\move (*ex *ey)
+
+% last lattice stage
+\bsegment
+  \move (0 +0.4)  \avectoc (1.7 +0.4)
+  \pcir \putwnw{\pl} \puts{\mn}
+  \avecfrc (2.3 +0.4) \Rtext{$e(n)$}
+  \move (0 -0.4)  \avec (0.4 -0.4) \delay \avectoc (1.7 -0.4)
+  \pcir \putwsw{\pl} \putn{\mn}
+  \avecfrc (2.1 -0.4)
+  \move (0.9 +0.4)  \bdot  \avectoc (1.7 -0.4)
+  \move (0.9 -0.4)  \bdot  \avectoc (1.7 +0.4)
+  \move (0.1 +0.42) \Ttext {$f_{P-1}(n)$}
+  \move (2.0 +0.42) \Ttext {$f_P(n)$}
+  \move (0.1 -0.4)  \Btext {$b_{P-1}(n)$}
+  \move (2.0 -0.4)  \Btext {$b_P(n)$}
+  \textref h:L v:B  \htext (1.15 +0.2){$K_P$}
+  \textref h:L v:T  \htext (1.15 -0.2){$K_P$}
+\esegment
+}
+
+\bigskip
+\centertexdraw{
+\arrowheadtype t:F  \arrowheadsize l:0.08 w:0.04
+\def\ds {\displaystyle}
+\def\ticklab (#1 #2)#3{\move(#1 #2)
+                       \bsegment
+                         \lvec (0 0.05)
+                         \textref h:C v:T \htext (0 -0.05){#3}
+                       \esegment}
+\def\Rtext #1{\bsegment
+                \textref h:L v:C \htext ( 0.08 0){#1}
+              \esegment}
+
+\move (2.4 -0.32)    % move to set the size
+
+\move (0 0)
+% Axes
+\avec (0  1.4)
+\move (0 0) \avec (2.2 0) \Rtext{$\omega$}
+\ticklab (0 0)   {0}
+\ticklab (0.8 0) {$\ds {\pi \over  2N} $}
+\ticklab (1.2 0) {$\omega_s$}
+\ticklab (1.6 0) {$\ds {\pi \over N} $}
+
+\linewd 0.025
+\move (0 1)
+\lvec (0.4 1)
+\lvec (0.44 0.998)
+\lvec (0.48 0.988)
+\lvec (0.52 0.973)
+\lvec (0.56 0.951)
+\lvec (0.60 0.923)
+\lvec (0.64 0.891)
+\lvec (0.68 0.852)
+\lvec (0.72 0.809)
+\lvec (0.76 0.760)
+\lvec (0.80 0.707)
+\lvec (0.84 0.649)
+\lvec (0.88 0.587)
+\lvec (0.92 0.522)
+\lvec (0.96 0.454)
+\lvec (1.00 0.382)
+\lvec (1.04 0.309)
+\lvec (1.08 0.233)
+\lvec (1.12 0.156)
+\lvec (1.16 0.078)
+\lvec (1.20 0)
+\lvec (1.9 0)
+}
+
+\bigskip
+\centertexdraw{
+\arrowheadtype t:V \arrowheadsize l:0.08 w:0.04
+\linewd 0.01
+\setunitscale 1.5            % circle will have radius 1.5 inches
+
+\def\Btext #1{\bsegment
+                \textref h:C v:T \htext (0 -0.04){#1}
+              \esegment}
+\def\Ttext #1{\bsegment
+                \textref h:C v:B \htext (0  0.04){#1}
+              \esegment}
+\def\Ltext #1{\bsegment
+                \textref h:R v:C \htext (-0.04 0){#1}
+              \esegment}
+\def\bdot {\fcir f:0 r:0.0133 }
+\def\vtick {\bsegment
+              \move (0 -0.05) \lvec (0  0.05)
+            \esegment}
+\def\htick {\bsegment
+              \move (-0.05 0) \lvec ( 0.05 0)
+            \esegment}
+\def\Hlen #1#2{\bsegment
+                 \vtick \avec ({#1} 0) \vtick \avec (0 0)
+                 \relsegscale 0.5
+                 \move ({#1} 0) \Ttext {#2}
+               \esegment}
+\def\Vlen #1#2{\bsegment
+                 \htick \avec (0 {#1}) \htick \avec (0 0)
+                 \relsegscale 0.5
+                 \move (0 {#1}) \Ltext {#2}
+               \esegment}
+
+\lcir r:1                         % circle
+\move (-1.05 0) \lvec ( 1.05 0)   % axes
+\move (0 -1.05) \lvec (0  1.05)
+
+\move (0 0) \lvec (0.707 0.707) \bdot
+\rmove (0.02 0.02) \textref h:L v:B \htext {X}
+\move (0.707 -0.707) \bdot
+\textref h:R v:T \htext(-0.02 -0.02){O}
+
+\move (0.5 0)                     % center of ellipse
+\bsegment
+  \lellip rx:0.435 ry:0.804
+  \bdot \Btext {$\beta_2$}
+  \move (0 0.15) \Hlen {0.435}{$|\beta_1{+}\beta_3|$}
+  \move (-0.7 0) \Vlen {0.804}{$|\beta_1{-}\beta_3|$}
+\esegment
+}
+
+\bye
diff --git a/Master/texmf-dist/doc/support/texdraw/test/ttexdraw.tex b/Master/texmf-dist/doc/support/texdraw/test/ttexdraw.tex
new file mode 100644
index 00000000000..0d48972952c
--- /dev/null
+++ b/Master/texmf-dist/doc/support/texdraw/test/ttexdraw.tex
@@ -0,0 +1,204 @@
+\documentclass{article}
+\usepackage{texdraw}
+\usepacakge{amsmath}
+
+\begin{document}
+
+% Test TeXdraw macros - unusual cases
+
+% $Id: ttexdraw.tex 1.8 1999/11/15 TeXdraw-v2r3 $
+
+% check for extraneous characters in texdraw.tex
+\setbox0=\vbox{\input texdraw }
+\message {texdraw.tex box size:
+          height: \the\ht0, width: \the\wd0, depth: \the\dp0}
+
+\bigskip
+\bigskip
+
+% check for a zero sized box for a zero sized TeXdraw
+\setbox0=\hbox{\begin{texdraw}
+               \lvec (0 0)
+               \end{texdraw}}
+\message {TeXdraw box size:
+          height: \the\ht0, width: \the\wd0, depth: \the\dp0}
+
+\bigskip
+\bigskip
+
+\begin{texdraw}
+% text only, should be no PostScript file
+  \rtext td:-45 (2 2){Test Text}
+\end{texdraw}
+
+\bigskip
+\bigskip
+
+\let\et=\etexdraw
+\def\etexdraw{\drawbb\et}
+
+\begin{texdraw}
+% blank lines OK?
+% box should be 2in by 2in
+% arc should go from inside to outside the box
+
+% \larc if no initial point defined
+\larc r:1 sd:45 ed:135
+
+% \ifill if path is empty
+\move (2 2)
+\ifill f:0.5
+
+\lvec (1 1)
+
+\end{texdraw}
+
+\bigskip
+\bigskip
+
+% Testing restoration of position after segments
+\begin{texdraw}
+  \lvec (1 1)
+  \bsegment
+    \linewd 0.03
+    \lvec (1 0)
+  \esegment
+  \bsegment
+    \lvec (0 -1)
+   \esegment
+\end{texdraw}
+
+\bigskip
+\bigskip
+
+% Check t:W arrows, should wipe out the line under the rightmost arrow head
+\begin{texdraw}
+  \arrowheadtype t:W
+  \arrowheadsize l:0.9 w:0.6
+  \linewd 0.05
+  \bsegment
+    \move (0 1)
+    \lvec (3 3)
+    \bsegment
+      \move (-3 -3)
+      \avec (0 0)
+    \esegment
+    \lvec (3 2)
+  \esegment
+  \move (3 0)
+  \bsegment
+    \move (0 1)
+    \lvec (3 3)
+    \rmove (0 0)
+    \bsegment
+      \move (-3 -3)
+      \avec (0 0)
+    \esegment
+    \lvec (3 2)
+  \esegment
+\end{texdraw}
+
+\bigskip
+\bigskip
+
+% Check that paths continue under filled circles
+\begin{texdraw}
+  \bsegment
+    \lvec (1 1)
+    \bsegment
+      \move (-0.25 -0.25)
+      \fcir f:0.8 r:0.5
+    \esegment
+    \lvec (1 0)
+  \esegment
+  \move (3 0)
+  \bsegment
+    \lvec (1 1)
+    \rmove (0 0)
+    \bsegment
+      \move (-0.25 -0.25)
+      \fcir f:0.8 r:0.5
+    \esegment
+    \lvec (1 0)
+  \esegment
+\end{texdraw}
+
+\bigskip
+\bigskip
+
+% Check that positions are restored correctly when the move pending and path
+% in progress flags are set
+
+\begin{texdraw}
+  \linewd 0.045
+  \lvec (1 0)
+  \bsegment
+    \move (0 -1)
+    \bsegment
+    \esegment
+    \lvec (0 0)
+  \esegment
+  \lvec (2 0)
+\end{texdraw}
+
+\bigskip
+\bigskip
+
+% Check \everytexdraw and \fellip
+\everytexdraw={\fellip f:0.8 rx:2.5 ry:1.0 }
+\begin{texdraw}
+  \lvec (0 0.75)
+\end{texdraw}
+\everytexdraw={}
+
+\bigskip
+\bigskip
+
+\def\ptext#1{\writeps{ gsave /Times-Roman findfont 41.6667
+scalefont setfont (#1) dup stringwidth exch neg 2 div exch neg 2 div rmoveto
+show grestore }}
+
+\begin{texdraw}
+  \move( 0 0)
+  \move(-1 -1) \rlvec( 2 0) \rlvec( 0 2) \rlvec( -2 0) \rlvec( 0 -2)
+  \lfill f:.8
+  \move( 0 .2)
+  \textref h:C v:C
+  \htext{This is a very long sentence to illustrate my point}
+  \move( 0 -.2)
+  \ptext{This is a very long sentence to illustrate my point}
+  \move( 0 0)
+  \move(-.5 -.5) \rlvec( 1 0) \rlvec( 0 1) \rlvec( -1 0) \rlvec( 0 -1)
+  \lfill f:.9
+\etexdraw
+
+\bigskip
+\bigskip
+
+% This example, with texdraw invoked from \text from within an equation,
+% ends up invoking texdraw 8 times (\gather together with \mathchoice).
+% A hook was built in to texdraw to detect half of these cases.  Now only
+% 4 identical copies of the PS file are generated.
+% Note: To avoid generating the extra PS files, use a \savebox to create the
+%       drawing and then place the box where desired.
+\begin{equation}
+\text{
+     \begin{texdraw}
+     \move(0 0)\lcir r:0.1
+     \end{texdraw}
+     }
+\end{equation}
+
+\bigskip
+\bigskip
+
+% extraneous data: generate an error message
+\message{ <<<<< Expect an error message: type return >>>>>}
+\btexdraw
+  \move (2 2)
+  \move (3 3)
+% Put in a spurious character
+a
+\end{texdraw}
+
+\end{document}
diff --git a/Master/texmf-dist/doc/support/texdraw/texdraw.pdf b/Master/texmf-dist/doc/support/texdraw/texdraw.pdf
index bf6fce7b513..8d038256c0c 100644
--- a/Master/texmf-dist/doc/support/texdraw/texdraw.pdf
+++ b/Master/texmf-dist/doc/support/texdraw/texdraw.pdf
diff --git a/Master/texmf-dist/doc/support/texdraw/texdraw.texi b/Master/texmf-dist/doc/support/texdraw/texdraw.texi
index 800fa6ee26b..9cacbc73500 100644
--- a/Master/texmf-dist/doc/support/texdraw/texdraw.texi
+++ b/Master/texmf-dist/doc/support/texdraw/texdraw.texi
@@ -1,9 +1,9 @@
 % -*-texinfo-*-
 
-%  $Id: texdraw.texi,v 2.6 2019/03/28 texdraw-V2R0a $
+%  $Id: texdraw.texi 2.11 2019/04/18 TeXdraw-v2r3 $
 
 % To produce a TeX version of this manual, you must have the following
-% files accessible by TeX.
+% files accessible to TeX.
 %   texdraw.texi  - this file, the TeXdraw manual, part of the TeXdraw
 %                   distribution
 %   texdraw.tex   - the TeXdraw macros, part of the TeXdraw distribution
@@ -15,7 +15,7 @@
 %                   texinfo.tex is available by anonymous ftp as
 %                   pub/gnu/texinfo-3.6.tar.Z on prep.ai.mit.edu.
 %
-\input texdraw    % bring in TeXdraw before texinfo changes escape from \ to @
+\input texdraw    % bring in TeXdraw before texinfo changes "\" to "@"
 \input txdtools
 
 \input texinfo    @c -*-texinfo-*-
@@ -25,7 +25,7 @@
 @comment %**end of header
 
 @copying
-This manual (edition 2.0a) documents @TeX{}draw, a system for
+This manual (edition 2.3) documents @TeX{}draw, a system for
 producing PostScript drawings from @TeX{}.
 
 Copyright @copyright{} 1993--2019 Peter Kabal
@@ -45,8 +45,8 @@ Creative Commons, PO Box 1866, Mountain View, CA 94042, USA.
 @titlepage
 @title @TeX{}draw
 @subtitle PostScript Drawings from @TeX{}
-@subtitle Edition 2.0a
-@subtitle March 2019
+@subtitle Edition 2.3
+@subtitle April 2019
 @author Peter Kabal
 
 @page
@@ -54,12 +54,11 @@ Creative Commons, PO Box 1866, Mountain View, CA 94042, USA.
 @insertcopying
 
 Peter Kabal @*
-Department of Electrical Engineering @*
+Department of Electrical @& Computer Engineering @*
 McGill University @*
-3480 University @*
-Montreal, Quebec @*
-Canada @w{} H3A@dmn{}2A7 @*
-@code{peter dot kabal at mcgill dot ca}
+
+@code{peter dot kabal at mcgill dot ca} @*
+@code{http://www-mmsp.ece.mcgill.ca/MMSP/Documents/Software/}
 @end titlepage
 
 @contents
@@ -71,10 +70,7 @@ Canada @w{} H3A@dmn{}2A7 @*
 @TeX{}draw is a collection of macros that allow drawings to be created
 from @emph{within} @TeX{}.
 
-This is edition 2.0a of the @TeX{}draw documentation. The only
-substantive change from edition 2.0 is the license, which is now
-CC-BY (any version).
-
+This is edition 2.3 of the @TeX{}draw documentation.
 @end ifnottex
 
 @menu
@@ -265,7 +261,7 @@ macros from the file @file{texdraw.tex} and optionally defines the
 @code{\begin@{texdraw@}} / @code{\end@{texdraw@}} environment.
 @example
 @group
-\documentstyle[11pt]@{article@}  % Article style with 11pt size option
+\documentstyle[11pt]@{article@}  % Article style at 11pt size
 ...
 \input texdraw            % Read in the TeXdraw macros
 \newenvironment@{texdraw@}@{\leavevmode\btexdraw@}@{\etexdraw@}
@@ -287,7 +283,7 @@ the standard @code{graphics} package and reads in the file
 @file{texdraw.tex} containing the definitions of the @TeX{}draw macros.
 @example
 @group
-\documentclass[11pt]@{article@}  % Article class with the 11pt size option
+\documentclass[11pt]@{article@}  % Article class at 11pt size
 \usepackage@{texdraw@}           % TeXdraw commands
 
 \begin@{document@}
@@ -2213,7 +2209,8 @@ commands built from the basic @TeX{}draw commands.
 \arrowheadtype t:F  \arrowheadsize l:0.08 w:0.04
 \def\pl {$\scriptscriptstyle +$} \def\mn {$\scriptscriptstyle -$}
 
-\move (0 +0.63) \move (0 -0.60) \move (0 0) % compensate for text size
+\move (0 +0.63) \move (0 -0.60) % compensate for the text size
+\move (0 0)
 
 % Input to the first stage
 \bsegment
@@ -2371,7 +2368,8 @@ shared between the commands used to draw these blocks.
 \arrowheadtype t:F  \arrowheadsize l:0.08 w:0.04
 \def\pl @{$\scriptscriptstyle +$@} \def\mn @{$\scriptscriptstyle -$@}
 
-\move (0 +0.63) \move (0 -0.60) \move (0 0) % compensate for text size
+\move (0 +0.63) \move (0 -0.60) % compensate for the text size
+\move (0 0)
 
 % Input to the first stage
 \bsegment
@@ -2890,12 +2888,6 @@ number which is used to scale coordinate values.  The overall scaling
 factor is the product of the unit scale factor and the segment scale
 factor.
 
-@item \texdrawbox @{ ... @}
-Create a @TeX{}draw box.  The argument contains @TeX{}draw commands.
-This macro returns a @TeX{} box with height equal to the height of the
-drawing and width equal to the width of the drawing.  The depth of the
-box is zero.
-
 @item \textref h:@var{h-ref} v:@var{v-ref}
 Set the text reference point for subsequent text commands.  The
 horizontal reference point @var{h-ref} is one of @code{L}, @code{C} or