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- Fixed calc_normals_... functions (Missing this pointer)

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- Added unittests for the normal calculation functions 


M    src/OpenMesh/Core/Mesh/PolyMeshT.cc
M    src/Unittests/unittests_trimesh_normal_calculations.cc


git-svn-id: http://www.openmesh.org/svnrepo/OpenMesh/trunk@1036 fdac6126-5c0c-442c-9429-916003d36597
This commit is contained in:
Jan Möbius
2014-05-04 15:47:22 +00:00
parent 21562a7c38
commit e953f9977d
2 changed files with 189 additions and 10 deletions
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20
src/OpenMesh/Core/Mesh/PolyMeshT.cc
View File

@@ -333,7 +333,7 @@ void PolyMeshT<Kernel>::
calc_vertex_normal_fast(VertexHandle _vh, Normal& _n) const
{
_n.vectorize(0.0);
for (ConstVertexFaceIter vf_it=this->cvf_iter(_vh); vf_it.is_valid(); ++vf_it)
for (ConstVertexFaceIter vf_it = this->cvf_iter(_vh); vf_it.is_valid(); ++vf_it)
_n += this->normal(*vf_it);
}
@@ -343,20 +343,20 @@ void PolyMeshT<Kernel>::
calc_vertex_normal_correct(VertexHandle _vh, Normal& _n) const
{
_n.vectorize(0.0);
ConstVertexIHalfedgeIter cvih_it = cvih_iter(_vh);
if (!cvih_it)
ConstVertexIHalfedgeIter cvih_it = this->cvih_iter(_vh);
if (! cvih_it.is_valid() )
{//don't crash on isolated vertices
return;
}
Normal in_he_vec;
calc_edge_vector(cvih_it, in_he_vec);
for ( ; cvih_it; ++cvih_it)
calc_edge_vector(*cvih_it, in_he_vec);
for ( ; cvih_it.is_valid(); ++cvih_it)
{//calculates the sector normal defined by cvih_it and adds it to _n
if (is_boundary(cvih_it))
if (this->is_boundary(*cvih_it))
{
continue;
}
HalfedgeHandle out_heh(next_halfedge_handle(cvih_it));
HalfedgeHandle out_heh(this->next_halfedge_handle(*cvih_it));
Normal out_he_vec;
calc_edge_vector(out_heh, out_he_vec);
_n += cross(in_he_vec, out_he_vec);//sector area is taken into account
@@ -374,11 +374,11 @@ calc_vertex_normal_loop(VertexHandle _vh, Normal& _n) const
LoopSchemeMaskDoubleSingleton::Instance();
Normal t_v(0.0,0.0,0.0), t_w(0.0,0.0,0.0);
unsigned int vh_val = valence(_vh);
unsigned int vh_val = this->valence(_vh);
unsigned int i = 0;
for (ConstVertexOHalfedgeIter cvoh_it = cvoh_iter(_vh); cvoh_it; ++cvoh_it, ++i)
for (ConstVertexOHalfedgeIter cvoh_it = this->cvoh_iter(_vh); cvoh_it.is_valid(); ++cvoh_it, ++i)
{
VertexHandle r1_v(to_vertex_handle(cvoh_it));
VertexHandle r1_v( this->to_vertex_handle(*cvoh_it) );
t_v += (typename vector_traits<Point>::value_type)(loop_scheme_mask__.tang0_weight(vh_val, i))*this->point(r1_v);
t_w += (typename vector_traits<Point>::value_type)(loop_scheme_mask__.tang1_weight(vh_val, i))*this->point(r1_v);
}

179
src/Unittests/unittests_trimesh_normal_calculations.cc
View File

@@ -105,4 +105,183 @@ TEST_F(OpenMeshNormals, NormalCalculations) {
mesh_.update_halfedge_normals();
}
TEST_F(OpenMeshNormals, NormalCalculations_calc_vertex_normal_fast) {
mesh_.clear();
// Add some vertices
Mesh::VertexHandle vhandle[4];
vhandle[0] = mesh_.add_vertex(Mesh::Point(0, 0, 0));
vhandle[1] = mesh_.add_vertex(Mesh::Point(0, 1, 0));
vhandle[2] = mesh_.add_vertex(Mesh::Point(1, 1, 0));
vhandle[3] = mesh_.add_vertex(Mesh::Point(0, 0, 1));
// Add four faces
std::vector<Mesh::VertexHandle> face_vhandles;
face_vhandles.push_back(vhandle[0]);
face_vhandles.push_back(vhandle[1]);
face_vhandles.push_back(vhandle[2]);
mesh_.add_face(face_vhandles);
face_vhandles.clear();
face_vhandles.push_back(vhandle[0]);
face_vhandles.push_back(vhandle[2]);
face_vhandles.push_back(vhandle[3]);
mesh_.add_face(face_vhandles);
face_vhandles.clear();
face_vhandles.push_back(vhandle[2]);
face_vhandles.push_back(vhandle[1]);
face_vhandles.push_back(vhandle[3]);
mesh_.add_face(face_vhandles);
face_vhandles.clear();
face_vhandles.push_back(vhandle[3]);
face_vhandles.push_back(vhandle[1]);
face_vhandles.push_back(vhandle[0]);
mesh_.add_face(face_vhandles);
// ===============================================
// Setup complete
// ===============================================
mesh_.request_vertex_normals();
mesh_.request_halfedge_normals();
mesh_.request_face_normals();
OpenMesh::Vec3f normal;
mesh_.calc_vertex_normal_fast(vhandle[2],normal);
}
TEST_F(OpenMeshNormals, NormalCalculations_calc_vertex_normal_correct) {
mesh_.clear();
// Add some vertices
Mesh::VertexHandle vhandle[4];
vhandle[0] = mesh_.add_vertex(Mesh::Point(0, 0, 0));
vhandle[1] = mesh_.add_vertex(Mesh::Point(0, 1, 0));
vhandle[2] = mesh_.add_vertex(Mesh::Point(1, 1, 0));
vhandle[3] = mesh_.add_vertex(Mesh::Point(0, 0, 1));
// Add four faces
std::vector<Mesh::VertexHandle> face_vhandles;
face_vhandles.push_back(vhandle[0]);
face_vhandles.push_back(vhandle[1]);
face_vhandles.push_back(vhandle[2]);
mesh_.add_face(face_vhandles);
face_vhandles.clear();
face_vhandles.push_back(vhandle[0]);
face_vhandles.push_back(vhandle[2]);
face_vhandles.push_back(vhandle[3]);
mesh_.add_face(face_vhandles);
face_vhandles.clear();
face_vhandles.push_back(vhandle[2]);
face_vhandles.push_back(vhandle[1]);
face_vhandles.push_back(vhandle[3]);
mesh_.add_face(face_vhandles);
face_vhandles.clear();
face_vhandles.push_back(vhandle[3]);
face_vhandles.push_back(vhandle[1]);
face_vhandles.push_back(vhandle[0]);
mesh_.add_face(face_vhandles);
// ===============================================
// Setup complete
// ===============================================
mesh_.request_vertex_normals();
mesh_.request_halfedge_normals();
mesh_.request_face_normals();
OpenMesh::Vec3f normal;
mesh_.calc_vertex_normal_correct(vhandle[2],normal);
}
TEST_F(OpenMeshNormals, NormalCalculations_calc_vertex_normal_loop) {
mesh_.clear();
// Add some vertices
Mesh::VertexHandle vhandle[4];
vhandle[0] = mesh_.add_vertex(Mesh::Point(0, 0, 0));
vhandle[1] = mesh_.add_vertex(Mesh::Point(0, 1, 0));
vhandle[2] = mesh_.add_vertex(Mesh::Point(1, 1, 0));
vhandle[3] = mesh_.add_vertex(Mesh::Point(0, 0, 1));
// Add four faces
std::vector<Mesh::VertexHandle> face_vhandles;
face_vhandles.push_back(vhandle[0]);
face_vhandles.push_back(vhandle[1]);
face_vhandles.push_back(vhandle[2]);
mesh_.add_face(face_vhandles);
face_vhandles.clear();
face_vhandles.push_back(vhandle[0]);
face_vhandles.push_back(vhandle[2]);
face_vhandles.push_back(vhandle[3]);
mesh_.add_face(face_vhandles);
face_vhandles.clear();
face_vhandles.push_back(vhandle[2]);
face_vhandles.push_back(vhandle[1]);
face_vhandles.push_back(vhandle[3]);
mesh_.add_face(face_vhandles);
face_vhandles.clear();
face_vhandles.push_back(vhandle[3]);
face_vhandles.push_back(vhandle[1]);
face_vhandles.push_back(vhandle[0]);
mesh_.add_face(face_vhandles);
// ===============================================
// Setup complete
// ===============================================
mesh_.request_vertex_normals();
mesh_.request_halfedge_normals();
mesh_.request_face_normals();
OpenMesh::Vec3f normal;
mesh_.calc_vertex_normal_loop(vhandle[2],normal);
}
}