%% BEGIN pstricks.bug
% LAST MODIFIED: October 3, 1994
% The latest version of this file can be obtained from Princeton.EDU.
% This file list some bugs and latebreaking news for PSTricks,
% version 0.93a, released March 12, 1993.
% PROBLEMS:
% 1. \scalebox can report missing number errors or worse, depending
% on what is in its argument.
% PATCH: Input this file.
%
% 2. palette.tex keeps loading pstricks.tex.
% PATCH: In palette.tex, change
% \ifx\pstricksloaded ...
% to
% \ifx\PSTricksLoaded ...
%
% 3. \pscirclebox doesn't leave the right amount of space.
% PATCH: Input this file.
%
% 4. \ncbar doesn't work right.
% PATCH: Input this file (AFTER inputting pst-node.tex).
%
% 5. Nested \multips doesn't work.
% PATCH: Input this file.
%
% 6. \psgrid sometimes gets the size wrong by 1 unit.
% PATCH: Input this file.
%
% 7. \begin{overlaybox} ... \end{overlaybox} cannot be used instead
% of \overlaybox ... \endoverlaybox.
% PATCH: Input this file.
%
% 8. Overlays don't interact properly with rotation.
% PATCH: Input this file.
%
% 9. Overlays don't work properly with nodes. Specifically, they only work
% when the nodes and node connections and labels are all on the same
% overlay.
% PATCH: Input this file, and include the command \AltOverlayMode
% before the overlay in which you want to use nodes (before the whole
% overlay box or slide, or in the beginning of the document).
% Warning: Normally, overlay material is made invisible by translating
% it off the page. With \AltOverlayMode, it is done by setting a small
% clip path somewhere off the page. The material is made visible again
% by issuing "initclip", which resets the clipping path completely.
% This makes it incompatible with any other clipping tricks.
%
% 10. SpecialCoor and the : version of nrot do not work when ;!|:
% do not have \catcode 12 (e.g., with french.sty).
%
% PATCH: Input this file, and read the following:
%
% FAQ: What non-standard category codes and active characters are
% compatible with PSTricks?
%
% Using non-standard category codes can confuse PSTricks in many ways.
% What follows is not comprehensive.
%
% Characters ()[],*=-
% These must have category code 3, 7, 8, 11 or 12.
% The category code must be set BEFORE inputting the PSTricks files.
%
% Characters <>|;!:
% Same as above, but category code 13 (``active'') is also OK, in
% which case the code must be 12 when the PSTricks files are input.
%
% Characters \{}@#$%^&_
% These should have their usual category codes when PSTricks files
% are input, but then they can be set arbitrarily.
%
% Characters +"'.?/~`
% No restrictions, but generally these should have category code 12
% when the PSTricks files are input.
%
% 11. Gradient fill style doesn't work the gradmidpoint=0 or gradmidpoint=1.
% WORKAROUND: Until the next release, set gradmidpoint
% close to, but not too close to or equal to, 0 or 1.
%
% 12. If using \pscharpath with protected fonts, the dashed and dotted
% linestyles, setting shadow=true, and \pstextpath produce an
% invalidaccess error.
% WORKAROUND: Until the next release, do not use those features with
% \pscharpath and protected fonts. In the next release, the dashed
% and dotted line styles will work, and shadow=true and \pstextpath
% will neither work nor produce errors with protected fonts.
%
% 13. \scalebox and \scaleboxto do not work properly with negative scaling.
%
% 14. With \psplot, setting labels=y or ticks=y does not suppress labels
% or ticks on the x-axis.
% PATCH: Get version 0.93a-patched of pst-plot.tex, distributed
% which is part of the 0.93a distribution starting March 30, 1994.
%
% 15. When lines are very short, linestyle=dash may cause an error.
% PATCH: Input this file.
%
% 16. \clipbox does not work.
% PATCH: Input this file.
%
% 17. Various nodes are missing \leavevmode, which can cause irregularities
% if they occur at the beginning of a paragraph.
% WORKAROUND: Put \leavevmode before the offending node command.
% E.g., \leavevmode\rnode{foo}
%
% 18. The Textures entry in the configuration file has several problems.
% WORKAROUND: Contact tvz@Princeton.EDU to get a new pstricks.con.
%
% 19. There are two problems with using PSTricks without a header file:
% 1. pst-make.tex gives an error.
% 2. You get a PostScript error.
% WORKAROUND:
% 1. At the end of pst-make.tex, change to line
% \MakeInputHpst-coil.doc}{pst-coil.tex}
% to
% \MakeInput{pst-coil.doc}{pst-coil.tex}
% (The `H' become `{').
% 2. In pstricks.doc (before running pst-make.tex) or in
% pstricks.tex (after running pst-make.tex), add the line
% /T /translate load def
% between the lines
% /CP /currentpoint load def
% /ED { exch def } bind def
%
% 20. Mixed coordinates do not work with \SpecialCorr
% PATCH: Input this file.
%
% 21. Axis labels in \psplot use a hyphen instead of a minus sign.
% PATCH: Get version 0.93a-patched of pst-plot.tex,
% which is part of the 0.93a distribution starting March 30, 1994.
%
% 22. For certain plotstyle's the \fileplot command does not work.
% PATCH: Get version 0.93a-patched of pst-plot.tex,
% which is part of the 0.93a distribution starting March 30, 1994.
%
% 23. \scale does not work in \pscustom.
% PATCH: Input this file.
\edef\TheAtCode{\the\catcode`\@}
\catcode`\@=11
% 1.
\def\pst@divide#1#2#3{%
\pst@@divide{#1}{#2}%
\pst@dimtonum\pst@dimg{#3}}
\def\pst@@divide#1#2{%
\pst@dimg=#1\relax
\pst@dimh=#2\relax
\pst@cntg=\pst@dimh
\pst@cnth=67108863
\pst@@@divide\pst@@@divide\pst@@@divide\pst@@@divide
\divide\pst@dimg\pst@cntg}
\def\pst@@@divide{%
\ifnum
\ifnum\pst@dimg<\z@-\fi\pst@dimg<\pst@cnth
\multiply\pst@dimg\sixt@@n
\else
\divide\pst@cntg\sixt@@n
\fi}
\def\pst@getscale#1#2{%
\pst@expandafter\pst@getnumii{#1 #1} {} {} {}\@nil
\@psttrue
\ifdim\pst@tempg\p@=\z@
\@pstrickserr{Bad scaling argument `#1'}\@ehpa
\def\pst@tempg{1 }%
\@pstfalse
\fi
\ifdim\pst@temph\p@=\z@
\if@pst\@pstrickserr{Bad scaling argument `#1'}\@ehpa\fi
\def\pst@temph{1 }%
\fi
\edef#2{\pst@tempg\space \pst@temph\space scale }%
\ifdim\pst@tempg\p@=\p@ \ifdim\pst@temph\p@=\p@
\def#2{}%
\fi\fi}
\def\scalebox#1{\pst@makebox{\@scalebox{#1}}}
\def\@scalebox#1{%
\begingroup
\pst@getscale{#1}\pst@tempa
\let\pst@tempc\pst@tempg
\let\pst@tempd\pst@temph
\@@scalebox
\endgroup}
\def\@@scalebox{%
\leavevmode
\hbox{%
\ifdim\pst@tempd\p@<\z@
\pst@dimg=\pst@tempd\ht\pst@hbox
\pst@dimh=\pst@tempd\dp\pst@hbox
\dp\pst@hbox=-\pst@dimg
\ht\pst@hbox=-\pst@dimh
\else
\ht\pst@hbox=\pst@tempd\ht\pst@hbox
\dp\pst@hbox=\pst@tempd\dp\pst@hbox
\fi
\pst@dima=\pst@tempc\wd\pst@hbox
\ifdim\pst@dima<\z@\kern-\pst@dima\fi
\pst@Verb{CP CP translate \pst@tempa \tx@NET}%
\hbox to \z@{\box\pst@hbox\hss}%
\pst@Verb{%
CP CP translate
1 \pst@tempc div 1 \pst@tempd div scale
\tx@NET}%
\ifdim\pst@dima>\z@\kern\pst@dima\fi}}
\def\scaleboxto(#1,#2){\pst@makebox{\@scaleboxto(#1,#2)}}
\def\@scaleboxto(#1,#2){%
\begingroup
\pssetlength\pst@dima{#1}%
\pssetlength\pst@dimb{#2}%
\ifdim\pst@dima=\z@\else
\pst@divide{\pst@dima}{\wd\pst@hbox}\pst@tempc
\edef\pst@tempc{\pst@tempc\space}%
\fi
\ifdim\pst@dimb=\z@
\ifdim\pst@dima=\z@
\@pstrickserr{%
\string\scaleboxto\space dimensions cannot both be zero}\@ehpa
\def\pst@tempa{}%
\def\pst@tempc{1 }%
\def\pst@tempd{1 }%
\else
\let\pst@tempd\pst@tempc
\fi
\else
\pst@dimc=\ht\pst@hbox
\advance\pst@dimc\dp\pst@hbox
\pst@divide{\pst@dimb}{\pst@dimc}\pst@tempd
\edef\pst@tempd{\pst@tempd\space}%
\ifdim\pst@dima=\z@ \let\pst@tempc\pst@tempd \fi
\fi
\edef\pst@tempa{\pst@tempc \pst@tempd scale }%
\@@scalebox
\endgroup}
% 3.
\def\pscirclebox@ii#1{%
\begingroup
\pst@useboxpar
\setbox\pst@hbox=\hbox{#1\pscirclebox@iii\box\pst@hbox}%
\ifpsboxsep
\pst@dima=.5\wd\pst@hbox
\pst@dimb=\ht\pst@hbox
\advance\pst@dimb\dp\pst@hbox
\divide\pst@dimb 2
\pst@pyth\pst@dima\pst@dimb\pst@dimc
\advance\pst@dimc\pslinewidth
\advance\pst@dimc\psframesep
\advance\pst@dimb-\pst@dimc
\setbox\pst@hbox=\hbox to2\pst@dimc{%
\hss
\vbox{\kern-\pst@dimb\box\pst@hbox}%
\hss}%
\advance\pst@dimb-\dp\pst@hbox
\dp\pst@hbox=-\pst@dimb
\fi
\leavevmode\box\pst@hbox
\endgroup}
% 4.
\pst@def{NCBar}<%
\tx@GetPos
\tx@GetArms
/mtrx AngleA matrix rotate def
x1a y1a mtrx itransform pop
x2a y2a mtrx itransform pop sub
dup 0 mtrx transform
3 -1 roll 0 gt
{ /y2a exch y2a add def /x2a exch x2a add def }
{ /y1a exch neg y1a add def /x1a exch neg x1a add def }
ifelse
mark
x2 y2 x2a y2a x1a y1a x1 y1
tx@Dict begin false \tx@Line end
/LPutVar [ x2 y2 x2 y2 x2a y2a x1a y1a x1 y1 ] cvx def
/LPutPos { LPutVar \tx@AnglesMP } def>
% 5.
\def\multips{\begingroup\pst@getrputrot\multips@i}
\def\multips@i(#1){\@ifnextchar({\@multips@ii(#1)}{\@multips@ii(0,0)(#1)}}
\def\@multips@ii(#1)(#2)#3#4{%
\pst@getcoor{#1}\pst@tempa
\pst@@getcoor{#2}%
\pst@cnta=#3\relax
\init@pscode
\addto@pscode{%
\pst@tempa T \the\pst@cnta\space \pslbrace
gsave \ifx\pst@rot\@empty\else\pst@rot rotate \fi }%
\hbox to\z@{%
\def\init@pscode{%
\addto@pscode{%
gsave
\pst@number\pslinewidth SLW
\pst@usecolor\pslinecolor}}%
\def\use@pscode{\addto@pscode{grestore}}%
\def\psclip##1{\pst@misplaced\psclip}%
\def\nc@object##1##2##3##4{\pst@misplaced{node connection}}%
#4}%
\addto@pscode{grestore \pst@coor T \psrbrace repeat}%
\leavevmode
\use@pscode
\endgroup
\ignorespaces}
% 6.
\pst@def{Grid}<%
newpath
/a 4 string def % Empty string
/b ED % Label size
/c ED % Label color procedure.
/n ED % Number of grid dots
cvi dup 1 lt { pop 1 } if /s ED % Number subdivisions
% Stack: x-unit y-unit
s div dup 0 eq { pop 1 } if /dy ED % y-distance between lines.
s div dup 0 eq { pop 1 } if /dx ED % x-distance between lines.
% These two are integer multiples of dx and dy:
dy div round dy mul /y0 ED % y-origin.
dx div round dx mul /x0 ED % x-origin.
% These four are integers, measuring dx and dy units:
dy div round cvi /y2 ED % y2
dx div round cvi /x2 ED % x2
dy div round cvi /y1 ED % y1
dx div round cvi /x1 ED % x1
/h y2 y1 sub 0 gt { 1 } { -1 } ifelse def % Sign of y2-y1
/w x2 x1 sub 0 gt { 1 } { -1 } ifelse def % Sign of x2-x1
% Set up the font and a few parameters for making labels:
b 0 gt
{ /z1 b 4 div CLW 2 div add def
/Helvetica findfont b scalefont setfont
/b b .95 mul CLW 2 div add def }
if
% If Level 2, use automatic stroke adjustment. Otherwise, do by hand:
systemdict /setstrokeadjust known % Level 2
{ true setstrokeadjust /t { } def }
{ /t {
transform
0.25 sub round 0.25 add exch
0.25 sub round 0.25 add exch
itransform
} bind def }
ifelse
% Now make the vertical lines:
gsave
% Make dotted line, if appropriate
n 0 gt
{ 1 setlinecap [ 0 dy n div ] dy n div 2 div setdash }
{ 2 setlinecap }
ifelse
% Initialize index:
/i x1 def
% Find y-values of endpoints. Adjust these if lines are dotted because
% otherwise rounding errors or stroke adjustment can cause first or
% last dot to be dropped. (Only GhostScript has exhibited problem of
% dropping first dot. This is probably a bug.)
/f y1 dy mul n 0 gt { dy n div 2 div h mul sub } if def
/g y2 dy mul n 0 gt { dy n div 2 div h mul add } if def
% Number of lines (Max 1000):
x2 x1 sub w mul 1 add dup 1000 gt { pop 1000 } if
{
% Make label:
i dx mul dup y0 moveto
b 0 gt
{ gsave
c % Color
i a cvs dup % Index, as a string
stringwidth pop /z2 ED % Stringwidth
w 0 gt {z1} {z1 z2 add neg} ifelse
h 0 gt {b neg} {z1} ifelse
rmoveto
show
grestore
} if
% Make line ( on stack: i dx mul ):
dup t f moveto g t L stroke
% Advance index:
/i i w add def
} repeat
grestore
% Now make horizontal lines:
gsave
n 0 gt
{ 1 setlinecap [ 0 dx n div ] dy n div 2 div setdash }
{ 2 setlinecap }
ifelse
/i y1 def
/f x1 dx mul n 0 gt { dx n div 2 div w mul sub } if def
/g x2 dx mul n 0 gt { dx n div 2 div w mul add } if def
y2 y1 sub h mul 1 add dup 1000 gt { pop 1000 } if
{ newpath
i dy mul dup x0 exch moveto
b 0 gt
{ gsave
c
i a cvs dup
stringwidth pop /z2 ED
w 0 gt {z1 z2 add neg} {z1} ifelse
h 0 gt {z1} {b neg} ifelse
rmoveto
show
grestore
} if
dup f exch t moveto g exch t L stroke
/i i h add def
} repeat
grestore>
% 7.
\def\overlaybox{%
\global\setbox\theoverlaybox=\hbox\bgroup
\begingroup
\let\psoverlay\pst@overlay
\def\overlaybox{%
\@pstrickserr{Overlays cannot be nested}\@eha}%
\def\putoverlaybox{%
\@pstrickserr{You must end the overlay box
before using \string\putoverlaybox}}%
\psoverlay{main}%
\ignorespaces}
% 8 and 9.
\pst@def{BeginOL}<%
dup (all) eq exch TheOL eq or
{ IfVisible not { Visible /IfVisible true def } if }
{ IfVisible { Invisible /IfVisible false def } if }
ifelse>
\pst@def{InitOL}<%
/OLUnit [ 3000 3000 matrix defaultmatrix dtransform ] cvx def
/Visible { CP OLUnit idtransform T moveto } def
/Invisible { CP OLUnit neg exch neg exch idtransform T moveto } def
/BOL { \tx@BeginOL } def /IfVisible true def>
\def\AltOverlayMode{%
\def\pst@initoverlay##1{%
\pst@Verb{%
\tx@InitOL
/Visible { initclip } def
/Invisible {
CP newpath OLUnit itransform moveto clip newpath moveto
} def
/TheOL (##1) def}}}
% 10.
\def\SpecialCoor{%
\def\pst@@getcoor##1{%
\begingroup
\pst@activecoor
\xdef\pst@tempg{##1}%
\endgroup
\expandafter\special@coor\pst@tempg||\@nil}%
\def\pst@@getangle##1{%
\begingroup
\pst@activecoor
\xdef\pst@tempg{##1}%
\endgroup
\expandafter\special@angle\pst@tempg\@empty)\@nil}%
\def\psput@##1{\pst@@getcoor{##1}\leavevmode\psput@special}}
\begingroup
\catcode`\|=13
\catcode`\;=13
\catcode`\!=13
\gdef\pst@activecoor{%
\def|{\string|}%
\def;{\string;}%
\def!{\string!}}
\endgroup
\begingroup
\catcode`\:=13
\gdef\pst@activerot{\def:{\string:}}
\endgroup
\def\psset@nrot#1{%
\begingroup
\pst@activerot
\pst@expandafter{\@ifnextchar:{\psset@@nrot}{\psset@@rot}}{#1}\@nil
\global\let\pst@tempg\psk@rot
\endgroup
\let\psk@nrot\pst@tempg}
% 13. See 1.
% 15.
\pst@def{DashLine}<%
% "a" is set to the length of first and last black segment, as fraction of
% usual black segment.
dup 0 gt
{ /a .5 def \tx@PathLength exch div }
{ pop /a 1 def \tx@PathLength }
ifelse
/b ED % Pattern should fit evenly in b
/x ED % Length of white segment.
/y ED % Length of black segment.
/z y x add def % Total length of dash pattern.
% If pattern is repeated n times, total length is (nz + 2(a-.5)y).
% Set length to b, solve for n, round, and leave on stack:
% n = round((b - 2(a-.5)y)/z)
b a .5 sub 2 mul y mul sub z \tx@Div round
% Adjust x and y by factor k so that
% (n(kz) + 2(a-.5)(ky)) = b.
% Solve for k and leave two copies on stack:
% k = b/(nz + 2(a-.5)y)
z mul a .5 sub 2 mul y mul add b exch \tx@Div dup
% Scale x and y, set dash, and stroke:
y mul /y ED x mul /x ED
% Make sure x and y are both positive:
x 0 gt y 0 gt and
{ [ y x ] 1 a sub y mul }
{ [ 1 0 ] 0 }
ifelse
setdash
stroke>
% 16.
\def\clipbox{\@ifnextchar[{\clipbox@}{\clipbox@[\z@]}}
\def\clipbox@[#1]{\pst@makebox\clipbox@@{#1}}
% 20.
\def\mixed@coor#1#2{%
\begingroup
\special@@coor#1;;\@nil
\let\pst@tempa\pst@coor
\special@@coor#2;;\@nil
\xdef\pst@tempg{\pst@tempa pop \pst@coor exch pop }%
\endgroup
\let\pst@coor\pst@tempg}
% 23.
\def\pst@getscale#1#2{%
\edef\pst@tempg{#1}%
\ifx\pst@tempg\@none
\def#2{}%
\else
\pst@expandafter\pst@getnumii{#1 #1} {} {} {}\@nil
\ifdim\pst@tempg\p@=\z@
\@pstrickserr{Bad scaling argument `#1'}\@ehpa
\def#2{}%
\else
\ifdim\pst@temph\p@=\z@
\@pstrickserr{Bad scaling argument `#1'}\@ehpa
\def#2{}%
\else
\edef#2{\pst@tempg\space \pst@temph\space scale }%
\fi
\fi
\fi}
\catcode`\@=\TheAtCode\relax
\endinput
%% END pstricks.bug
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