OpenMesh: OpenMesh/Tools/Decimater/DecimaterT.hh Source File

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DecimaterT.hh
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48
52 //=============================================================================
53 //
54 // CLASS DecimaterT
55 //
56 //=============================================================================
57
58 #ifndef OPENMESH_DECIMATER_DECIMATERT_HH
59 #define OPENMESH_DECIMATER_DECIMATERT_HH
60
61
62 //== INCLUDES =================================================================
63
64 #include <memory>
65
66 #include <OpenMesh/Core/Utils/Property.hh>
67 #include <OpenMesh/Tools/Utils/HeapT.hh>
68 #include <OpenMesh/Tools/Decimater/BaseDecimaterT.hh>
69
70 //== NAMESPACE ================================================================
71
72 namespace OpenMesh {
73 namespace Decimater {
74
75
76 //== CLASS DEFINITION =========================================================
77
78
82 template < typename MeshT >
83 class DecimaterT : virtual public BaseDecimaterT<MeshT> //virtual especially for the mixed decimater
84 {
85 public: //-------------------------------------------------------- public types
86
87 typedef DecimaterT< MeshT > Self;
88 typedef MeshT Mesh;
89 typedef CollapseInfoT<MeshT> CollapseInfo;
90 typedef ModBaseT<MeshT> Module;
91 typedef std::vector< Module* > ModuleList;
92 typedef typename ModuleList::iterator ModuleListIterator;
93
94 public: //------------------------------------------------------ public methods
95
97 DecimaterT( Mesh& _mesh );
98
100 ~DecimaterT();
101
102 public:
103
113 size_t decimate( size_t _n_collapses = 0 );
114
124 size_t decimate_to( size_t _n_vertices )
125 {
126 return ( (_n_vertices < this->mesh().n_vertices()) ?
127 decimate( this->mesh().n_vertices() - _n_vertices ) : 0 );
128 }
129
142 size_t decimate_to_faces( size_t _n_vertices=0, size_t _n_faces=0 );
143
144 public:
145
146 typedef typename Mesh::VertexHandle VertexHandle;
147 typedef typename Mesh::HalfedgeHandle HalfedgeHandle;
148
150 class HeapInterface
151 {
152 public:
153
154 HeapInterface(Mesh& _mesh,
155 VPropHandleT<float> _prio,
156 VPropHandleT<int> _pos)
157 : mesh_(_mesh), prio_(_prio), pos_(_pos)
158 { }
159
160 inline bool
161 less( VertexHandle _vh0, VertexHandle _vh1 )
162 { return mesh_.property(prio_, _vh0) < mesh_.property(prio_, _vh1); }
163
164 inline bool
165 greater( VertexHandle _vh0, VertexHandle _vh1 )
166 { return mesh_.property(prio_, _vh0) > mesh_.property(prio_, _vh1); }
167
168 inline int
169 get_heap_position(VertexHandle _vh)
170 { return mesh_.property(pos_, _vh); }
171
172 inline void
173 set_heap_position(VertexHandle _vh, int _pos)
174 { mesh_.property(pos_, _vh) = _pos; }
175
176
177 private:
178 Mesh& mesh_;
179 VPropHandleT<float> prio_;
180 VPropHandleT<int> pos_;
181 };
182
183 typedef Utils::HeapT<VertexHandle, HeapInterface> DeciHeap;
184
185
186 private: //---------------------------------------------------- private methods
187
189 void heap_vertex(VertexHandle _vh);
190
191 private: //------------------------------------------------------- private data
192
193
194 // reference to mesh
195 Mesh& mesh_;
196
197 // heap
198 #if (defined(_MSC_VER) && (_MSC_VER >= 1800)) || __cplusplus > 199711L || defined( __GXX_EXPERIMENTAL_CXX0X__ )
199 std::unique_ptr<DeciHeap> heap_;
200 #else
201 std::auto_ptr<DeciHeap> heap_;
202 #endif
203
204 // vertex properties
205 VPropHandleT<HalfedgeHandle> collapse_target_;
206 VPropHandleT<float> priority_;
207 VPropHandleT<int> heap_position_;
208
209 };
210
211 //=============================================================================
212 } // END_NS_DECIMATER
213 } // END_NS_OPENMESH
214 //=============================================================================
215 #if defined(OM_INCLUDE_TEMPLATES) && !defined(OPENMESH_DECIMATER_DECIMATERT_CC)
216 #define OPENMESH_DECIMATER_TEMPLATES
217 #include "DecimaterT.cc"
218 #endif
219 //=============================================================================
220 #endif // OPENMESH_DECIMATER_DECIMATERT_HH defined
221 //=============================================================================
222
OpenMesh::Decimater::DecimaterT
Decimater framework.
Definition: DecimaterT.hh:83
OpenMesh::Decimater::DecimaterT::decimate_to_faces
size_t decimate_to_faces(size_t _n_vertices=0, size_t _n_faces=0)
Attempts to decimate the mesh until a desired vertex or face complexity is achieved.
Definition: DecimaterT.cc:260
DecimaterT.cc
HeapT.hh
A generic heap class.
OpenMesh::Decimater::DecimaterT::~DecimaterT
~DecimaterT()
Destructor.
Definition: DecimaterT.cc:98
OpenMesh
Contains all the mesh ingredients like the polygonal mesh, the triangle mesh, different mesh kernels ...
Definition: MeshItems.hh:64
BaseDecimaterT.hh
OpenMesh::Decimater::DecimaterT::DecimaterT
DecimaterT(Mesh &_mesh)
Constructor.
Definition: DecimaterT.cc:78
OpenMesh::Decimater::BaseDecimaterT::mesh
Mesh & mesh()
access mesh. used in modules.
Definition: BaseDecimaterT.hh:143
OpenMesh::VPropHandleT< float >
OpenMesh::Decimater::CollapseInfoT
Stores information about a halfedge collapse.
Definition: CollapseInfoT.hh:80
OpenMesh::Decimater::DecimaterT::decimate
size_t decimate(size_t _n_collapses=0)
Perform a number of collapses on the mesh.
Definition: DecimaterT.cc:156
OpenMesh::Utils::HeapT
An efficient, highly customizable heap.
Definition: HeapT.hh:143
OpenMesh::Decimater::DecimaterT::decimate_to
size_t decimate_to(size_t _n_vertices)
Decimate the mesh to a desired target vertex complexity.
Definition: DecimaterT.hh:124
OpenMesh::Decimater::DecimaterT::HeapInterface
Heap interface.
Definition: DecimaterT.hh:150
OpenMesh::Decimater::BaseDecimaterT
Definition: BaseDecimaterT.hh:90
OpenMesh::Decimater::ModBaseT
Base class for all decimation modules.
Definition: ModBaseT.hh:197