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

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DecimaterT.hh
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43
47 //=============================================================================
48 //
49 // CLASS DecimaterT
50 //
51 //=============================================================================
52
53 #ifndef OPENMESH_DECIMATER_DECIMATERT_HH
54 #define OPENMESH_DECIMATER_DECIMATERT_HH
55
56
57 //== INCLUDES =================================================================
58
59 #include <memory>
60
61 #include <OpenMesh/Core/Utils/Property.hh>
62 #include <OpenMesh/Tools/Utils/HeapT.hh>
63 #include <OpenMesh/Tools/Decimater/BaseDecimaterT.hh>
64
65 //== NAMESPACE ================================================================
66
67 namespace OpenMesh {
68 namespace Decimater {
69
70
71 //== CLASS DEFINITION =========================================================
72
73
77 template < typename MeshT >
78 class DecimaterT : virtual public BaseDecimaterT<MeshT> //virtual especially for the mixed decimater
79 {
80 public: //-------------------------------------------------------- public types
81
82 typedef DecimaterT< MeshT > Self;
83 typedef MeshT Mesh;
84 typedef CollapseInfoT<MeshT> CollapseInfo;
85 typedef ModBaseT<MeshT> Module;
86 typedef std::vector< Module* > ModuleList;
87 typedef typename ModuleList::iterator ModuleListIterator;
88
89 public: //------------------------------------------------------ public methods
90
92 explicit DecimaterT( Mesh& _mesh );
93
95 ~DecimaterT();
96
97 public:
98
109 size_t decimate( size_t _n_collapses = 0 , bool _only_selected = false);
110
121 size_t decimate_to( size_t _n_vertices , bool _only_selected = false)
122 {
123 return ( (_n_vertices < this->mesh().n_vertices()) ?
124 decimate( this->mesh().n_vertices() - _n_vertices , _only_selected ) : 0 );
125 }
126
140 size_t decimate_to_faces( size_t _n_vertices=0, size_t _n_faces=0 , bool _only_selected = false);
141
142 public:
143
144 typedef typename Mesh::VertexHandle VertexHandle;
145 typedef typename Mesh::HalfedgeHandle HalfedgeHandle;
146
148 class HeapInterface
149 {
150 public:
151
152 HeapInterface(Mesh& _mesh,
153 VPropHandleT<float> _prio,
154 VPropHandleT<int> _pos)
155 : mesh_(_mesh), prio_(_prio), pos_(_pos)
156 { }
157
158 inline bool
159 less( VertexHandle _vh0, VertexHandle _vh1 )
160 { return mesh_.property(prio_, _vh0) < mesh_.property(prio_, _vh1); }
161
162 inline bool
163 greater( VertexHandle _vh0, VertexHandle _vh1 )
164 { return mesh_.property(prio_, _vh0) > mesh_.property(prio_, _vh1); }
165
166 inline int
167 get_heap_position(VertexHandle _vh)
168 { return mesh_.property(pos_, _vh); }
169
170 inline void
171 set_heap_position(VertexHandle _vh, int _pos)
172 { mesh_.property(pos_, _vh) = _pos; }
173
174
175 private:
176 Mesh& mesh_;
177 VPropHandleT<float> prio_;
178 VPropHandleT<int> pos_;
179 };
180
181 typedef Utils::HeapT<VertexHandle, HeapInterface> DeciHeap;
182
183
184 private: //---------------------------------------------------- private methods
185
187 void heap_vertex(VertexHandle _vh);
188
189 private: //------------------------------------------------------- private data
190
191
192 // reference to mesh
193 Mesh& mesh_;
194
195 // heap
196 #if (defined(_MSC_VER) && (_MSC_VER >= 1800)) || __cplusplus > 199711L || defined( __GXX_EXPERIMENTAL_CXX0X__ )
197 std::unique_ptr<DeciHeap> heap_;
198 #else
199 std::auto_ptr<DeciHeap> heap_;
200 #endif
201
202 // vertex properties
203 VPropHandleT<HalfedgeHandle> collapse_target_;
204 VPropHandleT<float> priority_;
205 VPropHandleT<int> heap_position_;
206
207 };
208
209 //=============================================================================
210 } // END_NS_DECIMATER
211 } // END_NS_OPENMESH
212 //=============================================================================
213 #if defined(OM_INCLUDE_TEMPLATES) && !defined(OPENMESH_DECIMATER_DECIMATERT_CC)
214 #define OPENMESH_DECIMATER_TEMPLATES
215 #include "DecimaterT_impl.hh"
216 #endif
217 //=============================================================================
218 #endif // OPENMESH_DECIMATER_DECIMATERT_HH defined
219 //=============================================================================
220
BaseDecimaterT.hh
DecimaterT_impl.hh
HeapT.hh
A generic heap class.
OpenMesh
Contains all the mesh ingredients like the polygonal mesh, the triangle mesh, different mesh kernels ...
Definition: MeshItems.hh:59
OpenMesh::VertexHandle
Handle for a vertex entity.
Definition: Handles.hh:121
OpenMesh::HalfedgeHandle
Handle for a halfedge entity.
Definition: Handles.hh:128
OpenMesh::PolyMeshT::VertexHandle
Kernel::VertexHandle VertexHandle
Handle for referencing the corresponding item.
Definition: PolyMeshT.hh:136
OpenMesh::PolyMeshT::HalfedgeHandle
Kernel::HalfedgeHandle HalfedgeHandle
Scalar type.
Definition: PolyMeshT.hh:137
OpenMesh::VPropHandleT< float >
OpenMesh::Decimater::BaseDecimaterT
Definition: BaseDecimaterT.hh:86
OpenMesh::Decimater::BaseDecimaterT::mesh
Mesh & mesh()
access mesh. used in modules.
Definition: BaseDecimaterT.hh:138
OpenMesh::Decimater::CollapseInfoT
Stores information about a halfedge collapse.
Definition: CollapseInfoT.hh:74
OpenMesh::Decimater::DecimaterT
Decimater framework.
Definition: DecimaterT.hh:79
OpenMesh::Decimater::DecimaterT::decimate
size_t decimate(size_t _n_collapses=0, bool _only_selected=false)
Perform a number of collapses on the mesh.
Definition: DecimaterT_impl.hh:150
OpenMesh::Decimater::DecimaterT::decimate_to_faces
size_t decimate_to_faces(size_t _n_vertices=0, size_t _n_faces=0, bool _only_selected=false)
Attempts to decimate the mesh until a desired vertex or face complexity is achieved.
Definition: DecimaterT_impl.hh:259
OpenMesh::Decimater::DecimaterT::~DecimaterT
~DecimaterT()
Destructor.
Definition: DecimaterT_impl.hh:92
OpenMesh::Decimater::DecimaterT::decimate_to
size_t decimate_to(size_t _n_vertices, bool _only_selected=false)
Decimate the mesh to a desired target vertex complexity.
Definition: DecimaterT.hh:121
OpenMesh::Decimater::DecimaterT::DecimaterT
DecimaterT(Mesh &_mesh)
Constructor.
Definition: DecimaterT_impl.hh:72
OpenMesh::Decimater::DecimaterT::HeapInterface
Heap interface.
Definition: DecimaterT.hh:149
OpenMesh::Decimater::ModBaseT
Base class for all decimation modules.
Definition: ModBaseT.hh:193
OpenMesh::Utils::HeapT
An efficient, highly customizable heap.
Definition: HeapT.hh:139