Non-manifold check for shape

seanliu's picture
seanliu
Mon, 04/04/2011 - 18:40
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Other usage issues

Hi
How to check if a shape is non-manifold or not?
For example, the resulting shape after a Boolean function like BRepAlgoAPI_Cut.

Thanks.

Sean

Cauchy Ding's picture
Cauchy Ding
Wed, 04/06/2011 - 03:27

Hi Sean,

I use TopExp::MapShapesAndAncestors(Shape, TopAbs_EDGE, TopAbs_FACE, TopTools_IndexedDataMapOfShapeListOfShape) to get edge/face relationship. If the shape is in non-manifod mode, one edge must be shared by more than 2 difference faces.

Ding