In the attached Hatch appears to fail… Actually it does create a hatch, but it is not visible… PlanrSrf on the same objects succeeds…
Thx, --Mitch
HatchFail.3dm (285.4 KB)
Hatch works if you use Boundry.
But it takes quite a long time.
So you probably has some kind of selvintersecting curve somewhere.
Selecting and hatching every single curve seperately might help you find the problem.
Edit: And the hatch becomes very heavy, just dragging it takes a while. So something is odd there…
Odd… I tried curveboolean and found two “issues” see image.
Then I hatched the result and that was quick and fine.
And that does not really make sense to me, so I did it again, and there is an issue with the overlapping curve, that gives a different result if I select once whithin the “stroke”, or if I select the outside, then removes all the inner bits.
Yeah, the curves are really wacky - a bunch of self-intersections (some I can’t see) and other problems. When I tried to fix them with CurveBoolean, I got some doubled-over curves as well… Funny, PlanarSrf handled this OK, but not Hatch. Anyway I had to spend quite awhile tracking down the problems and fixing them.
–Mitch
I have the same problem with Rhino8. The hatch does not appear in a simple rectangle. I don’t know what the reason for this is. I have experimented with different scales but nothing. I think it is a bug in the new version.
Any suggestions?