inpolygon equivalent function in 3D?

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Pinpress
Pinpress 2012-5-4
Hi,
I need to find a way to determine if a large number of points are inside a closed polygon expressed by either a triangular or quadrilateral mesh in 3D. I know in 2D, there's a matlab function "inpolygon". Is there an equivalent method/function in 3D?
Thanks!

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回答（3 个）

Pinpress
Pinpress 2012-5-7
Thanks for the tip. However, I don't think that's a good solution. I believe it tries to generate a convex hull using delaunayn. However, the closed surface I have is not necessarily a convex hull (arbitrary shape).
Walter Roberson
Walter Roberson 2012-5-4
Johannes Korsawe
Johannes Korsawe 2013-9-19
Try intriangulation on the FEX.
Regards, Johannes

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