Cannot split solid with surface

Rhino Rhino for Windows
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1

Hello,

I cannot split the solid with the surface. The error says:
image

This is the solid (orange) and the surface (blue) I am using.

image
image1564×829 215 KB

Any ideas what might be the reason? I changed CPlane to “object” but with no efect.

2

Hello - please run Intersect on the objects - is the result a closed curve?

-Pascal

3

Hello, It appears so:

image
image1601×624 146 KB

4

Hello- please use SelOpenCrv, SelClosedCrv, or ShowEnds or What to determine if the curve is closed. Or, just export the two objects and post that file here.

-Pascal

5

I think it will be best to send the file:

Split problem.3dm (473.3 KB)

6

Hello - this looks buggy to me - for now, select and Explode the beam, and while still selected, trim or split with the plane, then Join and Cap.

Hm… @s.urbanski - run MergeAllCoplanarFaces, then split… not sure yet where or why this is doing something good but it seems to.

There is a skinny, zero area surface - smaller than tolerance in the beam, that is why merging fixes it.

image

You should probably verify the curve that generated the beam.

-Pascal

7

Hello and thank you. “MergeAllCoplanarFaces” allowed me to split the beam.

8

I put this on the CheckForHumans bug list https://mcneel.myjetbrains.com/youtrack/issue/RH-63825 since I have been working on this lately.

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