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Boundaries from a solid?

Boundaries from a solid?

Boundaries from a solid?

(OP)
hi all, I am trying to extract a boundary from a solid and I'm finding quite a lot of dificulties. it does the boundary of face, bot doesn't do tangent continiuty boundaries. is that normal?.

Also after extracting some faces of solids or complex surfaces, sometimes, i cannot use their edges independently for crating a boundary curve or extract, the boundary just come complete and a portion  of it cannot be extracted, nor the points used.... kind of weird???,

Thanx

RE: Boundaries from a solid?

I would need to see the solid.  When I just tried it, I selected Extract, Tangent Continuity, and selected a face of the solid and it extracted all faces that were tangent continuous to the face I selected.

On the second point, if the solid used some surfaces that were Joined using the Federate option, you are seeing the correct behavior.  Even though you can see the boundaries between different cells of the surface, CATIA treats it as one continuous surface.

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