Public bug reported:
If a tetrahedron and triangle (converted from MeshEntities to CGAL
Nef_polyhedron_3) are intersected and resulting polygon has non-
vanishing area, BarycenterQuadrature computes quadrature wrong. Actually
it gives zero area, since some loops are not entered in the
BarycenterQuadrature::compute_quadrature function. (Such a intersection
object has surprisingly *NO* half_facets). Check against CGAL is needed.
** Affects: dolfin
Importance: Undecided
Assignee: Andre Massing (massing)
Status: New
** Changed in: dolfin
Assignee: (unassigned) => Andre Massing (massing)
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BarycenterQuadrature gives wrong results for tetrahedron triangle intersection
https://bugs.launchpad.net/bugs/575493
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Status in DOLFIN: New
Bug description:
If a tetrahedron and triangle (converted from MeshEntities to CGAL
Nef_polyhedron_3) are intersected and resulting polygon has non-vanishing area,
BarycenterQuadrature computes quadrature wrong. Actually it gives zero area,
since some loops are not entered in the
BarycenterQuadrature::compute_quadrature function. (Such a intersection object
has surprisingly *NO* half_facets). Check against CGAL is needed.
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