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Dear Herbert,</div>
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Many years ago, I generated custom vector fields using the \code command in PSTricks. You can see various examples here:
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<a href="https://users.math.msu.edu/users/hensh/courses/234/fall2022/lectures/exam2/16.1.pdf">
https://users.math.msu.edu/users/hensh/courses/234/fall2022/lectures/exam2/16.1.pdf</a><br>
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Unfortunately, when I try to generate new vector fields, the arrows are no longer affected by my color selections. The MWE below is part of a \multido loop, and I need to set the arrow color to match the line color on-the-fly.<br>
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\documentclass{standalone}
<div class="ContentPasted1">\usepackage{pstricks-add}</div>
<div class="ContentPasted1">\begin{document}</div>
<div class="ContentPasted1">\psset{unit=30mm}</div>
<div class="ContentPasted1">\begin{pspicture}(-2,-2)(2,2)</div>
<div class="ContentPasted1"> \pscustom[linewidth=2pt,arrowscale=1.5]{%</div>
<div class="ContentPasted1"> \arrows{->}</div>
<div class="ContentPasted1"> \code{%</div>
<div class="ContentPasted1"> 0 0 5 5 ArrowA %</div>
<div class="ContentPasted1"> 30 30 110 75 ArrowB %</div>
<div class="ContentPasted1 elementToProof"> 1 0 0 setrgbcolor % Only sets the line color to red.<br>
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<div class="ContentPasted1"> lineto %</div>
<div class="ContentPasted1"> stroke %</div>
<div class="ContentPasted1"> }</div>
<div class="ContentPasted1"> }</div>
<div class="ContentPasted1">\end{pspicture}</div>
\end{document}</div>
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The above code generates a red line with a black arrow. I must be able to do this within the \code block. Can you help?</div>
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thanks</div>
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rick</div>
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