diff options
| author | clifford <clifford@b57f626f-c46c-0410-a088-ec61d464b74c> | 2010-02-01 06:10:07 (GMT) |
|---|---|---|
| committer | clifford <clifford@b57f626f-c46c-0410-a088-ec61d464b74c> | 2010-02-01 06:10:07 (GMT) |
| commit | 2e6946fd5ae35e751a92e8fba23ac2c4c83518dd (patch) | |
| tree | 724f13caafdbc069ea9590ab963dad3f70647096 /src/projection.cc | |
| parent | 4fe6b92040261fe7faea49727d62fbcf61c954fc (diff) | |
Clifford Wolf:
Projection: detect cases where people do like to
project something that isn't a 2-manifold
git-svn-id: http://svn.clifford.at/openscad/trunk@402 b57f626f-c46c-0410-a088-ec61d464b74c
Diffstat (limited to 'src/projection.cc')
| -rw-r--r-- | src/projection.cc | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/src/projection.cc b/src/projection.cc index 159a805..2d08cff 100644 --- a/src/projection.cc +++ b/src/projection.cc @@ -190,9 +190,14 @@ PolySet *ProjectionNode::render_polyset(render_mode_e rm) const CGAL_Nef_polyhedron Ncube = cube->render_cgal_nef_polyhedron(); cube->unlink(); - PolySet *ps3 = new PolySet(); // N.p3 *= CGAL_Nef_polyhedron3(CGAL_Plane(0, 0, 1, 0), CGAL_Nef_polyhedron3::INCLUDED); N.p3 *= Ncube.p3; + if (!N.p3.is_simple()) { + PRINTF("WARNING: Body of projection(cut = true) isn't valid 2-manifold! Modify your design.."); + goto cant_project_non_simple_polyhedron; + } + + PolySet *ps3 = new PolySet(); cgal_nef3_to_polyset(ps3, &N); Grid2d<int> conversion_grid(GRID_COARSE); for (int i = 0; i < ps3->polygons.size(); i++) { @@ -219,6 +224,11 @@ PolySet *ProjectionNode::render_polyset(render_mode_e rm) const } else { + if (!N.p3.is_simple()) { + PRINTF("WARNING: Body of projection(cut = false) isn't valid 2-manifold! Modify your design.."); + goto cant_project_non_simple_polyhedron; + } + PolySet *ps3 = new PolySet(); cgal_nef3_to_polyset(ps3, &N); CGAL_Nef_polyhedron np; @@ -269,6 +279,7 @@ PolySet *ProjectionNode::render_polyset(render_mode_e rm) const ps3->unlink(); } +cant_project_non_simple_polyhedron: PolySet::ps_cache.insert(key, new PolySet::ps_cache_entry(ps->link())); print_messages_pop(); |