55#ifndef OPENMESH_DECIMATER_MODNORMALFLIPPING_HH
56#define OPENMESH_DECIMATER_MODNORMALFLIPPING_HH
79template <
typename MeshT>
92 const bool mesh_has_normals = _mesh.has_face_normals();
93 _mesh.request_face_normals();
95 if (!mesh_has_normals)
97 omerr() <<
"Mesh has no face normals. Compute them automatically." << std::endl;
98 _mesh.update_face_normals();
105 Base::mesh().release_face_normals();
128 Base::mesh().set_point(_ci.
v0, _ci.
p1);
135 for (; vf_it.is_valid(); ++vf_it)
138 if (fh != _ci.
fl && fh != _ci.
fr)
141 typename Mesh::Normal n2 = Base::mesh().calc_face_normal(fh);
151 Base::mesh().set_point(_ci.
v0, _ci.
p0);
153 return float( (c < min_cos_) ? Base::ILLEGAL_COLLAPSE : Base::LEGAL_COLLAPSE );
158 if (_factor >= 0.0 && _factor <= 1.0) {
162 double max_normal_deviation_value = (max_deviation_ * 180.0/M_PI) * _factor / this->error_tolerance_factor_;
164 this->error_tolerance_factor_ = _factor;
180 max_deviation_ = _d / 180.0 * M_PI;
181 min_cos_ = cos(max_deviation_);
187 double max_deviation_, min_cos_;
Base class for all decimation modules.
#define DECIMATING_MODULE(Classname, MeshT, Name)
Convenience macro, to be used in derived modules The macro defines the types.
Definition: ModBaseT.hh:149
Contains all the mesh ingredients like the polygonal mesh, the triangle mesh, different mesh kernels ...
Definition: MeshItems.hh:59
osg::Vec3f::ValueType dot(const osg::Vec3f &_v1, const osg::Vec3f &_v2)
Adapter for osg vector member computing a scalar product.
Definition: VectorAdapter.hh:176
Kernel::Scalar Scalar
Scalar type.
Definition: PolyMeshT.hh:110
Kernel::Normal Normal
Normal type.
Definition: PolyMeshT.hh:114
Kernel::ConstVertexFaceIter ConstVertexFaceIter
Circulator.
Definition: PolyMeshT.hh:176
Kernel::FaceHandle FaceHandle
Scalar type.
Definition: PolyMeshT.hh:139
Stores information about a halfedge collapse.
Definition: CollapseInfoT.hh:74
Mesh::FaceHandle fr
Right face.
Definition: CollapseInfoT.hh:87
Mesh::Point p0
Position of removed vertex.
Definition: CollapseInfoT.hh:84
Mesh::Point p1
Positions of remaining vertex.
Definition: CollapseInfoT.hh:85
Mesh::VertexHandle v0
Vertex to be removed.
Definition: CollapseInfoT.hh:82
Mesh::FaceHandle fl
Left face.
Definition: CollapseInfoT.hh:86
Base class for all decimation modules.
Definition: ModBaseT.hh:193
Decimating module to avoid flipping of faces.
Definition: ModNormalFlippingT.hh:81
double max_normal_deviation() const
get normal deviation
Definition: ModNormalFlippingT.hh:172
ModNormalFlippingT(MeshT &_mesh)
Constructor.
Definition: ModNormalFlippingT.hh:89
void set_error_tolerance_factor(double _factor) override
set the percentage of maximum normal deviation
Definition: ModNormalFlippingT.hh:157
float collapse_priority(const CollapseInfo &_ci) override
Compute collapse priority due to angular deviation of face normals before and after a collapse.
Definition: ModNormalFlippingT.hh:125
void set_max_normal_deviation(double _d)
Set normal deviation.
Definition: ModNormalFlippingT.hh:179