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CollapseInfoT.hh
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54 //=============================================================================
55 //
56 // STRUCT CollpaseInfoT
57 //
58 //=============================================================================
59 #ifndef OPENMESH_DECIMATER_COLLAPSEINFOT_HH
60 #define OPENMESH_DECIMATER_COLLAPSEINFOT_HH
61 
62 //== INCLUDES =================================================================
63 
64 //== NAMESPACE ================================================================
65 
66 namespace OpenMesh {
67 namespace Decimater {
68 
69 //== CLASS DEFINITION =========================================================
70 
79 template<class Mesh>
80 struct CollapseInfoT {
81  public:
91  CollapseInfoT(Mesh& _mesh, typename Mesh::HalfedgeHandle _heh);
92 
93  Mesh& mesh;
94 
95  typename Mesh::HalfedgeHandle v0v1;
96  typename Mesh::HalfedgeHandle v1v0;
97  typename Mesh::VertexHandle v0;
98  typename Mesh::VertexHandle v1;
99  typename Mesh::Point p0;
100  typename Mesh::Point p1;
101  typename Mesh::FaceHandle fl;
102  typename Mesh::FaceHandle fr;
103  typename Mesh::VertexHandle vl;
104  typename Mesh::VertexHandle vr;
105 
106 
109  typename Mesh::HalfedgeHandle vlv1, v0vl, vrv0, v1vr;
111 };
112 
113 //-----------------------------------------------------------------------------
114 
134 template<class Mesh>
136  typename Mesh::HalfedgeHandle _heh) :
137  mesh(_mesh), v0v1(_heh), v1v0(_mesh.opposite_halfedge_handle(v0v1)), v0(
138  _mesh.to_vertex_handle(v1v0)), v1(_mesh.to_vertex_handle(v0v1)), p0(
139  _mesh.point(v0)), p1(_mesh.point(v1)), fl(_mesh.face_handle(v0v1)), fr(
140  _mesh.face_handle(v1v0))
141 
142 {
143  // get vl
144  if (fl.is_valid()) {
145  vlv1 = mesh.next_halfedge_handle(v0v1);
146  v0vl = mesh.next_halfedge_handle(vlv1);
147  vl = mesh.to_vertex_handle(vlv1);
148  vlv1 = mesh.opposite_halfedge_handle(vlv1);
149  v0vl = mesh.opposite_halfedge_handle(v0vl);
150  }
151 
152  // get vr
153  if (fr.is_valid()) {
154  vrv0 = mesh.next_halfedge_handle(v1v0);
155  v1vr = mesh.next_halfedge_handle(vrv0);
156  vr = mesh.to_vertex_handle(vrv0);
157  vrv0 = mesh.opposite_halfedge_handle(vrv0);
158  v1vr = mesh.opposite_halfedge_handle(v1vr);
159  }
160 }
161 
162 //=============================================================================
163 }// END_NS_DECIMATER
164 } // END_NS_OPENMESH
165 //=============================================================================
166 #endif // OPENMESH_DECIMATER_COLLAPSEINFOT_HH defined
167 //=============================================================================
168 
Mesh::FaceHandle fr
Right face.
Definition: CollapseInfoT.hh:102
Stores information about a halfedge collapse.
Definition: CollapseInfoT.hh:80
Mesh::Point p0
Position of removed vertex.
Definition: CollapseInfoT.hh:99
Mesh::FaceHandle fl
Left face.
Definition: CollapseInfoT.hh:101
Mesh::HalfedgeHandle v1v0
Reverse halfedge.
Definition: CollapseInfoT.hh:96
Mesh::HalfedgeHandle v1vr
Outer remaining halfedge of diamond spanned by v0, v1, vl, and vr.
Definition: CollapseInfoT.hh:109
Mesh::VertexHandle v0
Vertex to be removed.
Definition: CollapseInfoT.hh:97
Mesh::VertexHandle vl
Left vertex.
Definition: CollapseInfoT.hh:103
Mesh::Point p1
Positions of remaining vertex.
Definition: CollapseInfoT.hh:100
Mesh::HalfedgeHandle v0vl
Outer remaining halfedge of diamond spanned by v0, v1, vl, and vr.
Definition: CollapseInfoT.hh:109
Mesh::HalfedgeHandle v0v1
Halfedge to be collapsed.
Definition: CollapseInfoT.hh:95
Mesh::HalfedgeHandle vlv1
Outer remaining halfedge of diamond spanned by v0, v1, vl, and vr.
Definition: CollapseInfoT.hh:109
CollapseInfoT(Mesh &_mesh, typename Mesh::HalfedgeHandle _heh)
Initializing constructor.
Definition: CollapseInfoT.hh:135
Mesh::VertexHandle v1
Remaining vertex.
Definition: CollapseInfoT.hh:98
Contains all the mesh ingredients like the polygonal mesh, the triangle mesh, different mesh kernels ...
Definition: MeshItems.hh:64
Mesh::HalfedgeHandle vrv0
Outer remaining halfedge of diamond spanned by v0, v1, vl, and vr.
Definition: CollapseInfoT.hh:109
Mesh::VertexHandle vr
Right vertex.
Definition: CollapseInfoT.hh:104

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