Grasshopper

algorithmic modeling for Rhino

How can I distiguish usual Brep vs. sweep with closed crv vs. a part of sphere?

Hello,

I have found, in Rhino those three breps are not exactly same type of brep.

1. a usual brep with 4 Points

2. a brep from sweep with closed crv.

3. trimmed brep from sphere

I want to distinguish those three type with C#.

How can I do it?

and is there more types of brep, that is different in code level?

Thanks!

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Permalink Reply by David Rutten on September 9, 2014 at 1:27am
One is an untrimmed surface, one is a closed surface and one is trimmed. So you should be able to figure this out by calling some methods on the BrepFace of each brep. IsClosed and IsSurface should work.

Additionally, the curvature of each object will be different.
Permalink Reply by y.KWON on September 9, 2014 at 2:07am

thank you quick answer!

one more question, as you see in attachment,

second one is displayed in Rhino Object Type as 'Open Surface' and it is untrimmed.

I want to find, a brep, whose two edges meet together such like second one.

Can you give me hint for that?

Thanks!

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Permalink Reply by David Rutten on September 9, 2014 at 2:37am

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Permalink Reply by y.KWON on September 9, 2014 at 2:41am

danke sehr!!

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