Hello Everybody, @GregArden and @rajaa,
I fear some of the gremlins you were able to fix here Rhino 8 HiddenLineDrawing - Issue with OccludingSectionOption - #13 by GregArden might have come back recently. I came across a few issues with 2D-Drawings I created with a custom HLD-Script where some Curves that shold be Hidden behind a filled Section Fill remained visible.
I was able to setup a Grasshopper test file where these issues seem to be repeatable:
240907_SimpleHiddenLineTest.gh (22.4 KB)
(Rhino Template is “Small Objects - Meters”)
A simple Center Box, placed at a certain Point and sectioned by the (flipped) XZ Plane.
If I set the center point of the box to e.g. Y = 2.90, all hidden curves are occluded as expected:
If I now move it to Y = 3.00, the lines behind the Section Occlusion aren’t hidden anymore:
Now I move it further to Y = 3.01, the occluded lines are hidden again:
Next test, Y = 4.00, the lines reappear:
And a final test, Y = 4.10, the lines are occluded again, as expected:
There seems to be a bug somwhere in that area if I’m not completely mistaken… Can you repeat that behaviour on your side?
Thank you!
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