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ModQuadricT.hh
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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>
64 #include <OpenMesh/Core/Utils/Property.hh>
65 #include <OpenMesh/Core/Utils/vector_cast.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
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 
Stores information about a halfedge collapse.
Definition: CollapseInfoT.hh:80
virtual void postprocess_collapse(const CollapseInfo &_ci)
Post-process halfedge collapse (accumulate quadrics)
Definition: ModQuadricT.hh:142
Bodies of template member function.
virtual float collapse_priority(const CollapseInfo &_ci)
Compute collapse priority based on error quadrics.
Definition: ModQuadricT.hh:121
virtual void initialize(void)
Initalize the module and prepare the mesh for decimation.
Definition: ModQuadricT.cc:78
void set_max_err(double _err, bool _binary=true)
Set maximum quadric error constraint and enable binary mode.
Definition: ModQuadricT.hh:161
#define DECIMATING_MODULE(Classname, MeshT, Name)
Convenience macro, to be used in derived modules The macro defines the types.
Definition: ModBaseT.hh:154
Mesh::VertexHandle v0
Vertex to be removed.
Definition: CollapseInfoT.hh:97
double max_err() const
Return value of max. allowed error.
Definition: ModQuadricT.hh:176
Mesh::Point p1
Positions of remaining vertex.
Definition: CollapseInfoT.hh:100
Handle representing a vertex property.
Definition: Property.hh:487
ModQuadricT(MeshT &_mesh)
Constructor.
Definition: ModQuadricT.hh:96
void unset_max_err(void)
Unset maximum quadric error constraint and restore non-binary mode.
Definition: ModQuadricT.hh:169
virtual ~ModQuadricT()
Destructor.
Definition: ModQuadricT.hh:105
Base class for all decimation modules.
void set_error_tolerance_factor(double _factor)
set the percentage of maximum quadric error
Definition: ModQuadricT.cc:141
Mesh::VertexHandle v1
Remaining vertex.
Definition: CollapseInfoT.hh:98
/class QuadricT Geometry/QuadricT.hh
Definition: QuadricT.hh:87
Contains all the mesh ingredients like the polygonal mesh, the triangle mesh, different mesh kernels ...
Definition: MeshItems.hh:64
Mesh decimation module computing collapse priority based on error quadrics.
Definition: ModQuadricT.hh:83
Base class for all decimation modules.
Definition: ModBaseT.hh:197

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