LaTeX forum ⇒ Graphics, Figures & Tablesintersection Topic is solved

Information and discussion about graphics, figures & tables in LaTeX documents.
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Postby kent » Fri Jan 12, 2018 4:53 pm

I fixed the problem with the use of the following construct

\csname pgfutil@ifundefined\endcsname{pgf@sh@ns@intersection-1}{no marking necessary since there is no intersection points}{do the marking of the intersection points}

thanks for a posting on .


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Stefan Kottwitz
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Postby Stefan Kottwitz » Fri Jan 12, 2018 5:11 pm

Hi Kent,

thank you for the information! I tested with the standard LaTeX \@ifundefined but did not finish.

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Postby kent » Mon Jan 15, 2018 10:23 am

A final comment from my side:
A more straightforward way of doing this may be just to
put \def\t{0} before PGF determines the intersections between the paths (if any).
Then \ifthenelse{\t=0}{}{mark the \t intersection points} will do the trick.


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