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Trace Path issue
Hello,
I have previously used "Trace Path" on quite complex layout (multiple layers and vias involved), and it worked nicely. Recently I tried to use it again and am running into issues. "Trace Net" works fine and highlights the entire net completely, as expected. Along that net, I can use "Trace Path", click two points very close to each other on the net, and it highlights a rough path limited by the shapes in use, as expected. However, as I go further and further apart on the net, eventually "Trace Net" fails to highlight. After clicking the second point, KLayout seems to instantly return control to me, as if the command aborted or just finished extremely quickly. I know the "Trace Path" command is being invoked because I see the "Click on the second point in the net" prompt at the bottom of the window. Is there a way that "Trace Net" could work, but "Trace Path" fail? (I figure the latter is somehow taking a subset of the shapes found by the former.) Is there a way to log what "Trace Path" is doing after the second point is clicked?
Comments
Hi @footang,
no, there is no log, except by debugging into the application code.
I con't confirm there is a net tracer bug with a small testcase:
But there is one thing that resembles your problem: if you click on a point that is outside the highlighted destination shape, I get the message you mention.
But I see a real bug which is that trace path stops when you zoom or use the mouse for something except clicking at the second point. So it's not possible to zoom into the view for exact placement of the second point. If have created a ticket for this: https://github.com/KLayout/klayout/issues/2201
Matthias