OpenMesh
ModQuadricT.hh
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41 
42 //=============================================================================
43 //
44 // CLASS ModQuadricT
45 //
46 //=============================================================================
47 
48 #ifndef OSG_MODQUADRIC_HH
49 #define OSG_MODQUADRIC_HH
50 
51 
52 //== INCLUDES =================================================================
53 
54 #include <float.h>
56 #include <OpenMesh/Core/Utils/Property.hh>
57 #include <OpenMesh/Core/Utils/vector_cast.hh>
59 
60 
61 //== NAMESPACE ================================================================
62 
63 namespace OpenMesh {
64 namespace Decimater {
65 
66 
67 //== CLASS DEFINITION =========================================================
68 
69 
74 template <class MeshT>
75 class ModQuadricT : public ModBaseT<MeshT>
76 {
77 public:
78 
79  // Defines the types Self, Handle, Base, Mesh, and CollapseInfo
80  // and the memberfunction name()
81  DECIMATING_MODULE( ModQuadricT, MeshT, Quadric );
82 
83 public:
84 
88  explicit ModQuadricT( MeshT &_mesh )
89  : Base(_mesh, false)
90  {
91  unset_max_err();
92  Base::mesh().add_property( quadrics_ );
93  }
94 
95 
97  virtual ~ModQuadricT()
98  {
99  Base::mesh().remove_property(quadrics_);
100  }
101 
102 
103 public: // inherited
104 
106  virtual void initialize(void) override;
107 
113  virtual float collapse_priority(const CollapseInfo& _ci) override
114  {
115  using namespace OpenMesh;
116 
117  typedef Geometry::QuadricT<double> Q;
118 
119  Q q = Base::mesh().property(quadrics_, _ci.v0);
120  q += Base::mesh().property(quadrics_, _ci.v1);
121 
122  double err = q(_ci.p1);
123 
124  //min_ = std::min(err, min_);
125  //max_ = std::max(err, max_);
126 
127  //double err = q( p );
128 
129  return float( (err < max_err_) ? err : float( Base::ILLEGAL_COLLAPSE ) );
130  }
131 
132 
134  virtual void postprocess_collapse(const CollapseInfo& _ci) override
135  {
136  Base::mesh().property(quadrics_, _ci.v1) +=
137  Base::mesh().property(quadrics_, _ci.v0);
138  }
139 
141  void set_error_tolerance_factor(double _factor) override;
142 
143 
144 
145 public: // specific methods
146 
153  void set_max_err(double _err, bool _binary=true)
154  {
155  max_err_ = _err;
156  Base::set_binary(_binary);
157  }
158 
161  void unset_max_err(void)
162  {
163  max_err_ = DBL_MAX;
164  Base::set_binary(false);
165  }
166 
168  double max_err() const { return max_err_; }
169 
170 
171 private:
172 
173  // maximum quadric error
174  double max_err_;
175 
176  // this vertex property stores a quadric for each vertex
178 };
179 
180 //=============================================================================
181 } // END_NS_DECIMATER
182 } // END_NS_OPENMESH
183 //=============================================================================
184 #if defined(OM_INCLUDE_TEMPLATES) && !defined(OPENMESH_DECIMATER_MODQUADRIC_CC)
185 #define OSG_MODQUADRIC_TEMPLATES
186 #include "ModQuadricT_impl.hh"
187 #endif
188 //=============================================================================
189 #endif // OSG_MODQUADRIC_HH defined
190 //=============================================================================
191 
Handle representing a vertex property.
Definition: Property.hh:484
Mesh::VertexHandle v1
Remaining vertex.
Definition: CollapseInfoT.hh:92
virtual ~ModQuadricT()
Destructor.
Definition: ModQuadricT.hh:97
ModQuadricT(MeshT &_mesh)
Constructor.
Definition: ModQuadricT.hh:88
/class QuadricT Geometry/QuadricT.hh
Definition: QuadricT.hh:82
Mesh decimation module computing collapse priority based on error quadrics.
Definition: ModQuadricT.hh:75
void set_error_tolerance_factor(double _factor) override
set the percentage of maximum quadric error
Definition: ModQuadricT_impl.hh:136
void set_max_err(double _err, bool _binary=true)
Set maximum quadric error constraint and enable binary mode.
Definition: ModQuadricT.hh:153
void unset_max_err(void)
Unset maximum quadric error constraint and restore non-binary mode.
Definition: ModQuadricT.hh:161
Base class for all decimation modules.
virtual void postprocess_collapse(const CollapseInfo &_ci) override
Post-process halfedge collapse (accumulate quadrics)
Definition: ModQuadricT.hh:134
virtual float collapse_priority(const CollapseInfo &_ci) override
Compute collapse priority based on error quadrics.
Definition: ModQuadricT.hh:113
#define DECIMATING_MODULE(Classname, MeshT, Name)
Convenience macro, to be used in derived modules The macro defines the types.
Definition: ModBaseT.hh:149
Base class for all decimation modules.
Definition: ModBaseT.hh:192
virtual void initialize(void) override
Initalize the module and prepare the mesh for decimation.
Definition: ModQuadricT_impl.hh:73
Mesh::Point p1
Positions of remaining vertex.
Definition: CollapseInfoT.hh:94
Bodies of template member function.
double max_err() const
Return value of max. allowed error.
Definition: ModQuadricT.hh:168
Contains all the mesh ingredients like the polygonal mesh, the triangle mesh, different mesh kernels ...
Definition: MeshItems.hh:59
Stores information about a halfedge collapse.
Definition: CollapseInfoT.hh:74
Mesh::VertexHandle v0
Vertex to be removed.
Definition: CollapseInfoT.hh:91

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