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<body>
Hello<br>
><br>
<pre>>
>> I've been having occasional problems with fills as illustrated
by
</i>>> the appended file, which is intended to fill a simple area
</i>>> bounded by two lines and a spline. [...]
</i>>
>inside of pscustom \psbezier takes only three arguments when it
>follows another curve. The end of the preceeding line is always
>the starting point for the next one.
</pre>Thank you for finding the problem so quickly. This means that
the definition of a spline<br>
now depends on the context; that is, when the spline is not first in the
path that is used<br>
as the boundary for a fill.<br><br>
This context-dependency breaks legacy code dating back to the 1990s,
although I'm<br>
not sure how many diagrams I have that correspond to the above
conditions.<br>
An example is appended (please excuse the length). The code is
generated by a program<br>
that cannot always know in advance the context of each drawing command,
since it may<br>
vary independently.<br><br>
In looking for a work-around, I've come up with some questions:<br><br>
1. Where is this behaviour documented, and are there other basic
drawing commands<br>
that no longer work as originally? I'm most interested in
\psset, \psframe,<br>
\psellipse, \pscircle, \psline, \psbezier, \psarc,
\psarcn.<br><br>
2. When was the change made? I may have to archive a prior
version of PSTricks that<br>
works with existing source code. Are older versions readily
available?<br><br>
3. Is there a way for a user to turn this behaviour off
easily? I can think of<br>
work-arounds for the current behaviour, but none that is
simple.<br><br>
\psset{unit=1in,cornersize=absolute,dimen=middle}%<br>
\begin{pspicture}(-1.061437,-0.45406)(1.818745,1.978113)%<br>
\psset{linewidth=0.8pt}%<br>
\psset{gradangle=00,gradbegin=white,gradend=gray,gradlines=600}<br>
\pscustom[linecolor=white,fillstyle=gradient,gradmidpoint=0.99]{<br>
\psbezier(-0.633927,1.610446)(-0.630901,1.597179)(-0.627874,1.583911)(-0.624848,1.570643)<br>
(-0.618795,1.544107)(-0.608614,1.500104)(-0.594307,1.438635)<br>
(-0.58,1.377166)(-0.565417,1.317244)(-0.550559,1.258871)<br>
(-0.535702,1.200498)(-0.519468,1.140039)(-0.501859,1.077494)<br>
(-0.48425,1.014948)(-0.466641,0.95584)(-0.449032,0.900168)<br>
(-0.431423,0.844496)(-0.413814,0.792241)(-0.396205,0.743402)<br>
(-0.378596,0.694563)(-0.360986,0.649144)(-0.343377,0.607145)<br>
(-0.325768,0.565146)(-0.308159,0.526567)(-0.29055,0.491406)<br>
(-0.272941,0.456246)(-0.255332,0.424506)(-0.237723,0.396185)<br>
(-0.220114,0.367865)(-0.202505,0.342961)(-0.184895,0.321474)<br>
(-0.167286,0.299987)(-0.149677,0.281936)(-0.132068,0.267323)<br>
(-0.114459,0.252709)(-0.098226,0.242037)(-0.083368,0.235307)<br>
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(-0.025313,0.222156)(-0.015133,0.221551)(-0.00908,0.221563)<br>
(-0.006053,0.221569)(-0.003027,0.221576)(0,0.221582)<br>
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(0.434272,0.383207)(0.472035,0.411611)(0.509798,0.443431)<br>
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(1.305178,1.621061)(1.327009,1.667087)(1.33999,1.694826)<br>
(1.346481,1.708695)(1.352971,1.722565)(1.359462,1.736434)<br>
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(1.295374,1.717175)(1.276633,1.712081)(1.256341,1.706988)<br>
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(0.853914,1.637662)(0.813091,1.632984)(0.769863,1.628501)<br>
(0.726636,1.624018)(0.680443,1.619775)(0.631286,1.615773)<br>
(0.582129,1.61177)(0.529384,1.608057)(0.473051,1.604635)<br>
(0.416719,1.601214)(0.353797,1.598325)(0.284287,1.59597)<br>
(0.214777,1.593616)(0.148912,1.591589)(0.086694,1.589891)<br>
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(-0.566011,1.607691)(-0.599969,1.609069)(-0.633927,1.610446)<br>
}%<br>
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(0.887426,0.874482)(0.925189,0.930238)(0.962952,0.989409)<br>
(1.000715,1.048581)(1.038478,1.111189)(1.07624,1.177234)<br>
(1.114003,1.243279)(1.148816,1.306964)(1.180678,1.36829)<br>
(1.212541,1.429616)(1.243813,1.492436)(1.274495,1.556748)<br>
(1.305178,1.621061)(1.327009,1.667087)(1.33999,1.694826)<br>
(1.346481,1.708695)(1.352971,1.722565)(1.359462,1.736434)<br>
\psbezier(1.359462,1.736434)(1.345318,1.732063)(1.329843,1.727389)(1.312565,1.722269)<br>
(1.295288,1.717149)(1.276734,1.712107)(1.256341,1.706988)<br>
(1.235948,1.70187)(1.212463,1.696486)(1.185174,1.690672)<br>
(1.157885,1.684858)(1.129315,1.679268)(1.098597,1.673732)<br>
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\psline(0,0)(0,0.221582)<br>
\psline[linestyle=dashed](0,0.240984)(0,1.566539)<br>
\psline[arrowsize=0.05in
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\uput{0.501875ex}[l](0,1.910773){\llap{{$f$}}}<br>
\psline[arrowsize=0.05in
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\uput{0.501875ex}[d](-0.380356,-0.141641){{$\;\;x_0$}}<br>
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\psset{linewidth=0.4pt}%<br>
\psset{linewidth=0.4pt}%<br>
\psset{linewidth=0.8pt}%<br>
\psset{linewidth=0.8pt}%<br>
\newgray{m4fillv}{1}<br>
\pscustom[fillstyle=solid,fillcolor=m4fillv]{%<br>
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\psset{linewidth=0.8pt}%<br>
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<x-sigsep><p></x-sigsep>
Dwight Aplevich</body>
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