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ModHausdorffT.hh
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41 
42 
46 //=============================================================================
47 //
48 // CLASS ModHausdorffT
49 //
50 //=============================================================================
51 
52 #ifndef OPENMESH_DECIMATER_MODHAUSDORFFT_HH
53 #define OPENMESH_DECIMATER_MODHAUSDORFFT_HH
54 
55 //== INCLUDES =================================================================
56 
58 #include <OpenMesh/Core/Utils/Property.hh>
59 #include <vector>
60 #include <cfloat>
61 
62 //== NAMESPACES ===============================================================
63 
64 namespace OpenMesh {
65 namespace Decimater {
66 
67 //== CLASS DEFINITION =========================================================
68 
78 template<class MeshT>
79 class ModHausdorffT: public ModBaseT<MeshT> {
80  public:
81 
82  DECIMATING_MODULE( ModHausdorffT, MeshT, Hausdorff );
83 
84  typedef typename Mesh::Scalar Scalar;
85  typedef typename Mesh::Point Point;
86  typedef typename Mesh::FaceHandle FaceHandle;
87  typedef std::vector<Point> Points;
88 
90  ModHausdorffT(MeshT& _mesh, Scalar _error_tolerance = FLT_MAX) :
91  Base(_mesh, true), mesh_(Base::mesh()), tolerance_(_error_tolerance) {
92  mesh_.add_property(points_);
93  }
94 
97  mesh_.remove_property(points_);
98  }
99 
101  Scalar tolerance() const {
102  return tolerance_;
103  }
104 
106  void set_tolerance(Scalar _e) {
107  tolerance_ = _e;
108  }
109 
111  virtual void initialize();
112 
123  virtual float collapse_priority(const CollapseInfo& _ci);
124 
126  virtual void postprocess_collapse(const CollapseInfo& _ci);
127 
129  void set_error_tolerance_factor(double _factor);
130 
131  private:
132 
134  Scalar distPointTriangleSquared(const Point& _p, const Point& _v0, const Point& _v1, const Point& _v2);
135 
137  Scalar compute_sqr_error(FaceHandle _fh, const Point& _p) const;
138 
139  private:
140 
142  Points tmp_points_;
143 
144  Mesh& mesh_;
145  Scalar tolerance_;
146 
148 };
149 
150 //=============================================================================
151 }// END_NS_DECIMATER
152 } // END_NS_OPENMESH
153 //=============================================================================
154 #if defined(OM_INCLUDE_TEMPLATES) && !defined(OPENMESH_DECIMATER_MODHAUSDORFFT_C)
155 #define OPENMESH_DECIMATER_MODHAUSDORFFT_TEMPLATES
156 #include "ModHausdorffT_impl.hh"
157 #endif
158 //=============================================================================
159 #endif // OPENMESH_DECIMATER_MODHAUSDORFFT_HH defined
160 //=============================================================================
161 
Use Hausdorff distance to control decimation.
void set_error_tolerance_factor(double _factor)
set the percentage of tolerance
virtual float collapse_priority(const CollapseInfo &_ci)
compute Hausdorff error for one-ring
Kernel::Point Point
Coordinate type.
Definition: PolyMeshT.hh:112
Scalar compute_sqr_error(FaceHandle _fh, const Point &_p) const
compute max error for face _fh w.r.t. its point list and _p
Kernel::Scalar Scalar
Scalar type.
Definition: PolyMeshT.hh:110
virtual void postprocess_collapse(const CollapseInfo &_ci)
re-distribute points
MeshT & mesh()
Access the mesh associated with the decimater.
Definition: ModBaseT.hh:277
void set_tolerance(Scalar _e)
set max error tolerance
Points tmp_points_
Temporary point storage.
virtual void initialize()
reset per-face point lists
Scalar tolerance() const
get max error tolerance
ModHausdorffT(MeshT &_mesh, Scalar _error_tolerance=FLT_MAX)
Constructor.
Scalar distPointTriangleSquared(const Point &_p, const Point &_v0, const Point &_v1, const Point &_v2)
squared distance from point _p to triangle (_v0, _v1, _v2)