OpenMesh: OpenMesh/Tools/Decimater/ModQuadricT.hh Source File

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ModQuadricT.hh
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42 /*===========================================================================*\
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48
49
50 //=============================================================================
51 //
52 // CLASS ModQuadricT
53 //
54 //=============================================================================
55
56 #ifndef OSG_MODQUADRIC_HH
57 #define OSG_MODQUADRIC_HH
58
59
60 //== INCLUDES =================================================================
61
62 #include <float.h>
63 #include <OpenMesh/Tools/Decimater/ModBaseT.hh>
64 #include <OpenMesh/Core/Utils/Property.hh>
65 #include <OpenMesh/Core/Utils/vector_cast.hh>
66 #include <OpenMesh/Core/Geometry/QuadricT.hh>
67
68
69 //== NAMESPACE ================================================================
70
71 namespace OpenMesh {
72 namespace Decimater {
73
74
75 //== CLASS DEFINITION =========================================================
76
77
82 template <class MeshT>
83 class ModQuadricT : public ModBaseT<MeshT>
84 {
85 public:
86
87 // Defines the types Self, Handle, Base, Mesh, and CollapseInfo
88 // and the memberfunction name()
89 DECIMATING_MODULE( ModQuadricT, MeshT, Quadric );
90
91 public:
92
96 ModQuadricT( MeshT &_mesh )
97 : Base(_mesh, false)
98 {
99 unset_max_err();
100 Base::mesh().add_property( quadrics_ );
101 }
102
103
105 virtual ~ModQuadricT()
106 {
107 Base::mesh().remove_property(quadrics_);
108 }
109
110
111 public: // inherited
112
114 virtual void initialize(void);
115
121 virtual float collapse_priority(const CollapseInfo& _ci)
122 {
123 using namespace OpenMesh;
124
125 typedef Geometry::QuadricT<double> Q;
126
127 Q q = Base::mesh().property(quadrics_, _ci.v0);
128 q += Base::mesh().property(quadrics_, _ci.v1);
129
130 double err = q(_ci.p1);
131
132 //min_ = std::min(err, min_);
133 //max_ = std::max(err, max_);
134
135 //double err = q( p );
136
137 return float( (err < max_err_) ? err : float( Base::ILLEGAL_COLLAPSE ) );
138 }
139
140
142 virtual void postprocess_collapse(const CollapseInfo& _ci)
143 {
144 Base::mesh().property(quadrics_, _ci.v1) +=
145 Base::mesh().property(quadrics_, _ci.v0);
146 }
147
149 void set_error_tolerance_factor(double _factor);
150
151
152
153 public: // specific methods
154
161 void set_max_err(double _err, bool _binary=true)
162 {
163 max_err_ = _err;
164 Base::set_binary(_binary);
165 }
166
169 void unset_max_err(void)
170 {
171 max_err_ = DBL_MAX;
172 Base::set_binary(false);
173 }
174
176 double max_err() const { return max_err_; }
177
178
179 private:
180
181 // maximum quadric error
182 double max_err_;
183
184 // this vertex property stores a quadric for each vertex
185 VPropHandleT< Geometry::QuadricT<double> > quadrics_;
186 };
187
188 //=============================================================================
189 } // END_NS_DECIMATER
190 } // END_NS_OPENMESH
191 //=============================================================================
192 #if defined(OM_INCLUDE_TEMPLATES) && !defined(OPENMESH_DECIMATER_MODQUADRIC_CC)
193 #define OSG_MODQUADRIC_TEMPLATES
194 #include "ModQuadricT.cc"
195 #endif
196 //=============================================================================
197 #endif // OSG_MODQUADRIC_HH defined
198 //=============================================================================
199
DECIMATING_MODULE
#define DECIMATING_MODULE(Classname, MeshT, Name)
Convenience macro, to be used in derived modules The macro defines the types.
Definition: ModBaseT.hh:154
OpenMesh::Decimater::ModQuadricT::unset_max_err
void unset_max_err(void)
Unset maximum quadric error constraint and restore non-binary mode.
Definition: ModQuadricT.hh:169
OpenMesh::Decimater::ModQuadricT::initialize
virtual void initialize(void)
Initalize the module and prepare the mesh for decimation.
Definition: ModQuadricT.cc:78
OpenMesh::Decimater::ModQuadricT::set_error_tolerance_factor
void set_error_tolerance_factor(double _factor)
set the percentage of maximum quadric error
Definition: ModQuadricT.cc:141
QuadricT.hh
OpenMesh
Contains all the mesh ingredients like the polygonal mesh, the triangle mesh, different mesh kernels ...
Definition: MeshItems.hh:64
OpenMesh::Decimater::CollapseInfoT::v0
Mesh::VertexHandle v0
Vertex to be removed.
Definition: CollapseInfoT.hh:97
OpenMesh::Decimater::ModQuadricT::postprocess_collapse
virtual void postprocess_collapse(const CollapseInfo &_ci)
Post-process halfedge collapse (accumulate quadrics)
Definition: ModQuadricT.hh:142
OpenMesh::Decimater::ModQuadricT
Mesh decimation module computing collapse priority based on error quadrics.
Definition: ModQuadricT.hh:83
OpenMesh::Decimater::ModQuadricT::ModQuadricT
ModQuadricT(MeshT &_mesh)
Constructor.
Definition: ModQuadricT.hh:96
OpenMesh::Decimater::ModQuadricT::max_err
double max_err() const
Return value of max. allowed error.
Definition: ModQuadricT.hh:176
OpenMesh::Decimater::ModQuadricT::~ModQuadricT
virtual ~ModQuadricT()
Destructor.
Definition: ModQuadricT.hh:105
OpenMesh::Decimater::ModQuadricT::set_max_err
void set_max_err(double _err, bool _binary=true)
Set maximum quadric error constraint and enable binary mode.
Definition: ModQuadricT.hh:161
OpenMesh::VPropHandleT
Handle representing a vertex property.
Definition: Property.hh:487
OpenMesh::Decimater::CollapseInfoT
Stores information about a halfedge collapse.
Definition: CollapseInfoT.hh:80
OpenMesh::Decimater::ModQuadricT::collapse_priority
virtual float collapse_priority(const CollapseInfo &_ci)
Compute collapse priority based on error quadrics.
Definition: ModQuadricT.hh:121
ModQuadricT.cc
Bodies of template member function.
OpenMesh::Geometry::QuadricT
/class QuadricT Geometry/QuadricT.hh
Definition: QuadricT.hh:87
OpenMesh::Decimater::CollapseInfoT::v1
Mesh::VertexHandle v1
Remaining vertex.
Definition: CollapseInfoT.hh:98
OpenMesh::Decimater::CollapseInfoT::p1
Mesh::Point p1
Positions of remaining vertex.
Definition: CollapseInfoT.hh:100
OpenMesh::Decimater::ModBaseT
Base class for all decimation modules.
Definition: ModBaseT.hh:197
ModBaseT.hh
Base class for all decimation modules.