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[Wonwoo Lee <>]

Hi. I have two questions about Nef_3 polyhedron.

Question 1 :

If I made a Nef_3 polyhedron with a plane (0,0,1,-20), a simple z=20,
what region does the polyhedron represent ?
Is it the upper region or the lower region of the plane ?

Following to the example about converting Polyhedron_3 to Nef_polyhedron_3,
I created a simple tetrahedron and converted it to Nef_polyhedron_3.

In this case, the region Nef_polyhedron_3 represents is inside of the
tethedron ?


Question 2 :

Let's assume that I create a triangular mesh model (for examle, a cube)
with Polyhedron_3 by using incremental builder and convert it to a
Nef_polyhedron_3.
If all the facets outward normal vector, what region the converted
Nef_polyhedron_3
represents, inside the mesh or outside ?