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DiffGeoT.hh
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40 \*===========================================================================*/
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48 \*===========================================================================*/
49
50 //=============================================================================
51 //
52 // CLASS DiffGeoT
53 //
54 //=============================================================================
55
56
57 #ifndef DIFFGEO_HH
58 #define DIFFGEO_HH
59
60
61 //== INCLUDES =================================================================
62
63 #include <OpenMesh/Core/Utils/Property.hh>
64
65
66 //== NAMESPACES ===============================================================
67
68 namespace Remeshing {
69
70 //== CLASS DEFINITION =========================================================
71
72
73 template <class Mesh>
74 class DiffGeoT
75 {
76 public:
77
78 typedef typename Mesh::Scalar Scalar;
79 typedef typename Mesh::VertexHandle VertexHandle;
80
81
82 DiffGeoT(Mesh& _mesh);
83 ~DiffGeoT();
84
85
86 void compute(unsigned int _post_smoothing_iters=0);
87
88 void compute_edge_weights();
89 void compute_area();
90 void compute_gauss_curvature();
91 void compute_mean_curvature();
92 void post_smoothing(unsigned int _iters);
93
94
95 Scalar compute_area(VertexHandle _vh) const;
96
97
98 Scalar area(VertexHandle _vh) const {
99 return mesh_.property(area_, _vh);
100 }
101
102 Scalar gauss_curvature(VertexHandle _vh) const {
103 return mesh_.property(gauss_curvature_, _vh);
104 }
105
106 Scalar mean_curvature(VertexHandle _vh) const {
107 return mesh_.property(mean_curvature_, _vh);
108 }
109
110 Scalar min_curvature(VertexHandle _vh) const {
111 const Scalar zero(0.0);
112 Scalar H = mean_curvature(_vh);
113 Scalar K = gauss_curvature(_vh);
114 return H - sqrt(std::max(zero, H*H-K));
115 }
116
117 Scalar max_curvature(VertexHandle _vh) const {
118 const Scalar zero(0.0);
119 Scalar H = mean_curvature(_vh);
120 Scalar K = gauss_curvature(_vh);
121 return H + sqrt(std::max(zero, H*H-K));
122 }
123
124
125 private:
126
127 Mesh& mesh_;
128
129 OpenMesh::VPropHandleT<Scalar> area_;
130 OpenMesh::VPropHandleT<Scalar> gauss_curvature_;
131 OpenMesh::VPropHandleT<Scalar> mean_curvature_;
132 OpenMesh::EPropHandleT<Scalar> edge_weight_;
133
134 bool weights_computed_, area_computed_;
135 };
136
137
138 //=============================================================================
139 } // namespace Remeshing
140 //=============================================================================
141 #if defined(INCLUDE_TEMPLATES) && !defined(DIFFGEOT_C)
142 #define DIFFGEO_TEMPLATES
143 #include "DiffGeoT.cc"
144 #endif
145 //=============================================================================
146 #endif // DIFFGEO_HH defined
147 //=============================================================================
148
OpenMesh::EPropHandleT< Scalar >
OpenMesh::TriMesh_ArrayKernelT< CustomTraits >
OpenMesh::VPropHandleT< Scalar >
Remeshing
Definition: AdaptiveRemesherT.cc:68
OpenMesh::PolyMeshT::Scalar
Kernel::Scalar Scalar
Scalar type.
Definition: PolyMeshT.hh:113
OpenMesh::PolyMeshT::VertexHandle
Kernel::VertexHandle VertexHandle
Handle for referencing the corresponding item.
Definition: PolyMeshT.hh:139
Remeshing::DiffGeoT
Definition: DiffGeoT.hh:74