From 675266a469958f9238613ad9e8ce6ae637736923 Mon Sep 17 00:00:00 2001
From: Karl Berry <karl@freefriends.org>
Date: Sun, 5 May 2019 21:38:50 +0000
Subject: pgf

git-svn-id: svn://tug.org/texlive/trunk@51018 c570f23f-e606-0410-a88d-b1316a301751
---
 .../pgf/systemlayer/pgfsysanimations.code.tex      | 112 ++++++++++-----------
 1 file changed, 56 insertions(+), 56 deletions(-)

(limited to 'Master/texmf-dist/tex/generic/pgf/systemlayer/pgfsysanimations.code.tex')

diff --git a/Master/texmf-dist/tex/generic/pgf/systemlayer/pgfsysanimations.code.tex b/Master/texmf-dist/tex/generic/pgf/systemlayer/pgfsysanimations.code.tex
index 12862bee9db..06bd9934bff 100644
--- a/Master/texmf-dist/tex/generic/pgf/systemlayer/pgfsysanimations.code.tex
+++ b/Master/texmf-dist/tex/generic/pgf/systemlayer/pgfsysanimations.code.tex
@@ -38,7 +38,7 @@
 % Set the current time to a snapshot time
 %
 % #1 = a global snapshot time (a dimensionless number, measured in
-%      seconds). 
+%      seconds).
 %
 % Description:
 %
@@ -47,11 +47,11 @@
 % of the animation at the given time.
 %
 % The value #1 can be thought of as the "global time", which can be
-% thought of as the time that elapsed since the "onload" event. 
+% thought of as the time that elapsed since the "onload" event.
 %
 % The command \pgfsysanimsnapshotafter works the same way as
 % pgfsysanimsnapshot, only the time #1 is interpreted as "global time
-% #1 + epsilon". This means that when two or mroe values are specified
+% #1 + epsilon". This means that when two or more values are specified
 % for time #1, the last of them is used rather than the
 % first. Likewise, when a non-freezing timeline ends at time #1,
 % \pgfsysanimsnapshot will set the value to the last value in the
@@ -65,10 +65,10 @@
 % - Events and restarts are ignored. For the snapshot, all animations
 %   start at global time 0, except if the command
 %   \pgfsysanimkeysnapshotstart is used to specify a different
-%   start for a specific animation. 
+%   start for a specific animation.
 % - The "current value" as starting value (pgf has no real chance of
 %   determining the correct value of this). Using this with a snapshot
-%   will raise an errer.
+%   will raise an error.
 %
 % Example:
 %
@@ -200,7 +200,7 @@
 
 
 % Companions for \pgfsys@animation@freezeatend and
-% \pgfsys@animation@removeatend 
+% \pgfsys@animation@removeatend
 %
 % Description:
 %
@@ -226,7 +226,7 @@
 \def\pgfsysanimkeytime#1#2#3#4#5{%
   % Setup animation
   \pgfsys@animation@time{#1}{#2}{#3}{#4}{#5}%
-  % and rember for snapshots
+  % and remember for snapshots
   \def\pgfsysanim@time{{#1}{#2}{#3}{#4}{#5}}%
 }
 
@@ -267,7 +267,7 @@
 %
 % Description:
 %
-% Calls \pgfsys@animation@offset. 
+% Calls \pgfsys@animation@offset.
 
 \def\pgfsysanimkeyoffset#1#2{%
   \pgfsys@animation@offset{#1}{#2}%
@@ -338,7 +338,7 @@
 % Description:
 %
 % Calls \pgfsys@animaion@(no)accumulate and records the setting for
-% snapshots. 
+% snapshots.
 
 \def\pgfsysanimkeyaccumulate{\pgfsys@animation@accumulate\pgfsysanim@accumulatetrue}
 \def\pgfsysanimkeynoaccumulate{\pgfsys@animation@noaccumulate\pgfsysanim@accumulatefalse}
@@ -353,7 +353,7 @@
 %
 % Description:
 %
-% Calls \pgfsys@animation@whom and records the setting for snapshots. 
+% Calls \pgfsys@animation@whom and records the setting for snapshots.
 
 \def\pgfsysanimkeywhom#1#2{%
   \pgfsys@register@type{#2}%
@@ -368,12 +368,12 @@
 
 
 % Companions for \pgfsys@animation@rotatealong and
-% \pgfsys@animation@norotatealong 
+% \pgfsys@animation@norotatealong
 %
 % Description:
 %
 % Calls the system layer command and records the setting for
-% snapshots. 
+% snapshots.
 
 \def\pgfsysanimkeyrotatealong{\pgfsys@animation@rotatealong\pgfsysanim@rotatealongtrue}
 \def\pgfsysanimkeynorotatealong{\pgfsys@animation@norotatealong\pgfsysanim@rotatealongfalse}
@@ -450,7 +450,7 @@
 }
 
 
-% Supresses the animation value
+% Suppresses the animation value
 %
 % Description:
 %
@@ -566,7 +566,7 @@
   \pgfsys@animation@val@color@rgb{#1}{#2}{#3}%
   \ifpgfsysanim@is@snap%
     \pgfsysanim@esnap@record{{#1}{#2}{#3}}%
-  \fi%  
+  \fi%
 }
 
 
@@ -599,7 +599,7 @@
       \edef\pgfsys@temp{{\pgf@sys@tonumber\pgf@xa}{\pgf@sys@tonumber\pgf@xb}{\pgf@sys@tonumber\pgf@xc}}%
     \expandafter}%
     \expandafter\pgfsysanim@esnap@record\expandafter{\pgfsys@temp}%
-  \fi%  
+  \fi%
 }
 
 
@@ -625,7 +625,7 @@
       \edef\pgfsys@temp{{\pgf@sys@tonumber\pgf@xa}{\pgf@sys@tonumber\pgf@xb}{\pgf@sys@tonumber\pgf@xc}}%
     \expandafter}%
     \expandafter\pgfsysanim@esnap@record\expandafter{\pgfsys@temp}%
-  \fi%  
+  \fi%
 }
 
 
@@ -643,7 +643,7 @@
   \pgfsys@animation@val@color@gray{#1}%
   \ifpgfsysanim@is@snap%
     \pgfsysanim@esnap@record{{#1}{#1}{#1}}%
-  \fi%  
+  \fi%
 }
 
 
@@ -661,7 +661,7 @@
   \pgfsys@animation@val@path{#1}%
   \ifpgfsysanim@is@snap%
     \pgfsysanim@snap@record{#1}%
-  \fi%  
+  \fi%
 }
 
 
@@ -678,7 +678,7 @@
   \pgfsys@animation@val@translate{#1}{#2}%
   \ifpgfsysanim@is@snap%
     \pgfsysanim@esnap@record{{#1}{#2}}%
-  \fi%  
+  \fi%
 }
 
 
@@ -696,7 +696,7 @@
   \pgfsys@animation@val@scale{#1}{#2}%
   \ifpgfsysanim@is@snap%
     \pgfsysanim@esnap@record{{#1}{#2}}%
-  \fi%  
+  \fi%
 }
 
 
@@ -714,7 +714,7 @@
   \pgfsys@animation@val@viewbox{#1}{#2}{#3}{#4}%
   \ifpgfsysanim@is@snap%
     \pgfsysanim@esnap@record{{#1}{#2}{#3}{#4}}%
-  \fi%  
+  \fi%
 }
 
 
@@ -733,7 +733,7 @@
   \pgfsys@animation@val@dash{#1}{#2}%
   \ifpgfsysanim@is@snap%
     \pgfsysanim@esnap@record{{#1}{#2}}%
-  \fi%  
+  \fi%
 }
 
 
@@ -1005,7 +1005,7 @@
   \fi%
   \pgf@x\pgfmathresult pt\relax%
   \expandafter\pgfsysanim@splitter\the\pgf@x%
-  % 
+  %
   \pgf@xc=\pgfsysanim@repeat@frac\pgf@xa%
   \advance\pgf@xc by\pgf@xb%
   \pgfsysanim@compute@time%
@@ -1027,7 +1027,7 @@
       \expandafter\pgfsysanim@test@time\pgfsys@temp%
     \fi%
   \ifpgfsysanim@cont%
-    \advance\pgfutil@tempcnta by1\relax%  
+    \advance\pgfutil@tempcnta by1\relax%
   \pgfutil@repeat%
 }
 
@@ -1056,7 +1056,7 @@
         % else, do nothing
         \fi
       \else%
-        % always overwrite:  
+        % always overwrite:
         \def\pgfsysanim@prev@val{#6}%
         \def\pgfsysanim@prev@time{#1}%
         \def\pgfsysanim@prev@spline{{#2}{#3}{#4}{#5}}%
@@ -1076,7 +1076,7 @@
         \pgfsysanim@contfalse%
       \fi%
     \fi%
-  \fi%  
+  \fi%
 }
 
 \let\pgfsysanim@prev@val\relax%
@@ -1100,8 +1100,8 @@
     \let\pgfsysanim@code@end\pgfsysanim@code@closer%
     \expandafter\global\expandafter\let\pgfsysanim@code@main\pgfutil@empty%
   \else%
-    \let\pgfsysanim@code@begin\relax%  
-    \let\pgfsysanim@code@end\relax%  
+    \let\pgfsysanim@code@begin\relax%
+    \let\pgfsysanim@code@end\relax%
   \fi%
   \expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\def%
   \expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\expandafter\pgfsysanim@new@main%
@@ -1159,7 +1159,7 @@
     \fi%
     \pgfsysanim@add@trans@%
   \fi%
-}  
+}
 \def\pgfsysanim@add@trans@{%
   \toks0\expandafter{\pgfsysanim@snap@canvas@transform@pre}%
   \toks1\expandafter{\pgfsysanim@code@begin}%
@@ -1307,8 +1307,8 @@
     \pgfsysanim@cap@scalar{\pgfsysanim@z@val}{0}{1}%
     \pgfsysanim@attach{strokecolor}{\noexpand\pgfsys@color@rgb@stroke{\pgfsysanim@x@val}{\pgfsysanim@y@val}{\pgfsysanim@z@val}}{}%
   \fi%
-}  
-  
+}
+
 \def\pgfsysanim@prep@attr@fillcolor{%
   \ifpgfsysanim@valid@snapshot@time%
     \pgfsysanim@comp@color%
@@ -1440,26 +1440,26 @@
 
 \def\pgfsysanim@prepare@start@of@path{%
   \ifx\pgfsysanim@snap@tip@start\pgfutil@empty\else
-    % 
+    %
     % Step 1: Split
-    % 
+    %
     \ifx\pgfprocessresultpathsuffix\relax%
       % Ok, still need to compute the split:
       \pgfprocesssplitpath{\pgf@arrowpath}%
     \fi%
-    % 
+    %
     % Step 2: extract
-    % 
+    %
     \expandafter\pgf@parse@start\pgfprocessresultpathsuffix\pgf@stop\pgf@stop\pgf@stop%
-    % 
+    %
     % Step 3: prep
-    % 
+    %
     \pgf@prep@start%
   \fi%
 }
 \def\pgfsysanim@add@marker@at@start{%
   \ifx\pgfsysanim@snap@tip@start\pgfutil@empty\else
-    % 
+    %
     % Step 4: draw
     %
     {%
@@ -1480,24 +1480,24 @@
   \pgf@precise@shorteningfalse%
   \edef\pgf@path@shortening@distance{0pt}%
   \ifx\pgfsysanim@snap@tip@end\pgfutil@empty\else
-    % 
+    %
     % Step 1: Split
-    % 
+    %
     \pgfprocesssplitpath{\pgfsysanim@path@val}%
     \pgfprocesssplitsubpath{\pgfprocessresultpathsuffix}%
-    % 
+    %
     % Step 2: extract
-    % 
+    %
     \expandafter\pgf@parse@end\pgfprocessresultsubpathsuffix\pgf@stop\pgf@stop\pgf@stop%
-    % 
-    % Step 3: prep 
-    % 
+    %
+    % Step 3: prep
+    %
     \pgf@prep@end%
   \fi%
 }
 \def\pgfsysanim@add@marker@at@end{%
   \ifx\pgfsysanim@snap@tip@end\pgfutil@empty\else
-    % 
+    %
     % Step 4: draw
     %
     {%
@@ -1663,7 +1663,7 @@
 }
 
 
-% Text interpolation 
+% Text interpolation
 
 \def\pgfsysanim@comp@text{%
   \let\pgfsysanim@text@val\pgfsysanim@prev@val%
@@ -1853,11 +1853,11 @@
     \else%
       \pgf@xa#3pt%
       \pgf@xb#5pt%
-      % #4 is val supoort a
+      % #4 is val support a
       % #6 is val support b
       % our first approximation
-      \let\pgfsysanim@t\pgfsysanim@frac@a% 
-      \let\pgfsysanim@s\pgfsysanim@frac@b% 
+      \let\pgfsysanim@t\pgfsysanim@frac@a%
+      \let\pgfsysanim@s\pgfsysanim@frac@b%
       \pgfsysanim@eval@spline%
       \edef\pgfsysanim@ft{\the\pgf@x}%
       \pgf@x\pgfsysanim@t pt%
@@ -1870,7 +1870,7 @@
       % Ok, now do Newton one step
       \advance\pgf@x by-\pgfsysanim@ft%
       \pgf@x256\pgf@x%
-      % \pgf@x is f'(t) 
+      % \pgf@x is f'(t)
       % must compute t - (f(t)-frac@a)/f'(t)
       \pgf@ya\pgfsysanim@ft%
       \advance\pgf@ya by-\pgfsysanim@frac@a pt%
@@ -1901,7 +1901,7 @@
       % Ok, now do Newton one step2
       \advance\pgf@x by-\pgfsysanim@ft%
       \pgf@x256\pgf@x%
-      % \pgf@x is f'(t) 
+      % \pgf@x is f'(t)
       % must compute t - (f(t)-frac@a)/f'(t)
       \pgf@ya\pgfsysanim@ft%
       \advance\pgf@ya by-\pgfsysanim@frac@a pt%
@@ -1920,7 +1920,7 @@
       \advance\pgf@y by-\pgf@x%
       \edef\pgfsysanim@t{\pgf@sys@tonumber\pgf@x}%
       \edef\pgfsysanim@s{\pgf@sys@tonumber\pgf@y}%
-      % Third newton:
+      % Third Newton:
       \pgfsysanim@eval@spline%
       \edef\pgfsysanim@ft{\the\pgf@x}%
       \pgf@x\pgfsysanim@t pt%
@@ -1933,7 +1933,7 @@
       % Ok, now do Newton one step2
       \advance\pgf@x by-\pgfsysanim@ft%
       \pgf@x256\pgf@x%
-      % \pgf@x is f'(t) 
+      % \pgf@x is f'(t)
       % must compute t - (f(t)-frac@a)/f'(t)
       \pgf@ya\pgfsysanim@ft%
       \advance\pgf@ya by-\pgfsysanim@frac@a pt%
@@ -1973,12 +1973,12 @@
   \advance\pgf@yb by\pgfsysanim@s\pgf@xa%
   \pgf@yc\pgfsysanim@t pt%
   \advance\pgf@yc by\pgfsysanim@s\pgf@xb%
-  % Iteration two: (ya,yb,yc) recuded to (y,xc)
+  % Iteration two: (ya,yb,yc) reduced to (y,xc)
   \pgf@y\pgfsysanim@t\pgf@yb%
   \advance\pgf@y by\pgfsysanim@s\pgf@ya%
   \pgf@xc\pgfsysanim@t\pgf@yc%
   \advance\pgf@xc by\pgfsysanim@s\pgf@yb%
-  % Iteration three: (y,xc) recuded to (x)
+  % Iteration three: (y,xc) reduced to (x)
   \pgf@x\pgfsysanim@t\pgf@xc%
   \advance\pgf@x by\pgfsysanim@s\pgf@y%
 }
-- 
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