I end up with 2 extra lines when I do this curve boolean, even though I’ve snapped to the quadrants. Doesn’t always happen though. Sometimes I end up with 1 extra, sometimes none.
Here’s another video where I do the boolean & undo it multiple times. You can see that the resulting number of curves is different, seemingly at random. Scratch that, it alternates between 4 & 6 curves when exploded, so I guess not random.
Without a .3dm file with the geometry any response is likely to be speculation. You can upload a .3dm file by dragging it to where you type a post, or by using the vertical arrow icon above where you type a post.
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Hi Peter - I am not getting that here in my test - what is the scale? and the file tolerance?
Does SimplifyCrv before the Explode do anything good? And where it the curve seam on the circle relative to the rectangle?
-Pascal
File tolerance is 0.0003", the circle is 4"D. But here is a file.
bool.3dm (44.1 KB)
Hi Peter - thanks - so, here, CurveBoolean makes a curve that explodes into 4 segments, as expected - does that same exact file make something else for you?
-Pascal
Yes, that exact file. But, if you look at my 2nd video, you see that if I undo & then do it again, it explodes with 4, and if I undo & do it again, explodes with 6, etc. So try it, undo it, and try it again - a few times & see if you get 6.
Hi Peter - thanks - it looks so far like pick order matters - circle first = 6 segments, rectangle first = 4 segments. Thanks for pointing this out.
RH-58078 CurveBoolean pick order
-Pascal
Oh, interesting. I was using CTRL+A to select all. Thanks for identifying the problem!
Pascal, when I click on that YouTrack, page not found.
Also, is this the same bug that makes it so that when I trim a surface with a polyline, sometimes certain areas are merged into ‘one edge’ in the resulting trimmed surface and other times a different area is ‘one edge’? Super painful.