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BaseDecimaterT.hh
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48
52 //=============================================================================
53 //
54 // CLASS McDecimaterT
55 //
56 //=============================================================================
57
58 #ifndef OPENMESH_BASE_DECIMATER_DECIMATERT_HH
59 #define OPENMESH_BASE_DECIMATER_DECIMATERT_HH
60
61
62 //== INCLUDES =================================================================
63
64 #include <memory>
65
66 #include <OpenMesh/Core/Utils/Property.hh>
67 #include <OpenMesh/Tools/Decimater/ModBaseT.hh>
68 #include <OpenMesh/Core/Utils/Noncopyable.hh>
69 #include <OpenMesh/Tools/Decimater/Observer.hh>
70
71
72
73 //== NAMESPACE ================================================================
74
75 namespace OpenMesh {
76 namespace Decimater {
77
78
79 //== CLASS DEFINITION =========================================================
80
81
85 class BaseDecimaterModule
86 {
87 };
88
89 template < typename MeshT >
90 class BaseDecimaterT : private Utils::Noncopyable
91 {
92 public: //-------------------------------------------------------- public types
93
94 typedef BaseDecimaterT< MeshT > Self;
95 typedef MeshT Mesh;
96 typedef CollapseInfoT<MeshT> CollapseInfo;
97 typedef ModBaseT<MeshT> Module;
98 typedef std::vector< Module* > ModuleList;
99 typedef typename ModuleList::iterator ModuleListIterator;
100
101 public: //------------------------------------------------------ public methods
102 BaseDecimaterT(Mesh& _mesh);
103 virtual ~BaseDecimaterT();
104
112 bool initialize();
113
114
116 bool is_initialized() const { return initialized_; }
117
118
120 void info( std::ostream& _os );
121
122 public: //--------------------------------------------------- module management
123
131 void set_observer(Observer* _o)
132 {
133 observer_ = _o;
134 }
135
137 Observer* observer()
138 {
139 return observer_;
140 }
141
143 Mesh& mesh() { return mesh_; }
144
146 template < typename _Module >
147 bool add( ModHandleT<_Module>& _mh )
148 {
149 if (_mh.is_valid())
150 return false;
151
152 _mh.init( new _Module(mesh()) );
153 all_modules_.push_back( _mh.module() );
154
155 set_uninitialized();
156
157 return true;
158 }
159
160
162 template < typename _Module >
163 bool remove( ModHandleT<_Module>& _mh )
164 {
165 if (!_mh.is_valid())
166 return false;
167
168 typename ModuleList::iterator it = std::find(all_modules_.begin(),
169 all_modules_.end(),
170 _mh.module() );
171
172 if ( it == all_modules_.end() ) // module not found
173 return false;
174
175 delete *it;
176 all_modules_.erase( it ); // finally remove from list
177 _mh.clear();
178
179 set_uninitialized();
180 return true;
181 }
182
183
185 template < typename Module >
186 Module& module( ModHandleT<Module>& _mh )
187 {
188 assert( _mh.is_valid() );
189 return *_mh.module();
190 }
191
192
193 protected:
194
196 bool notify_observer(size_t _n_collapses)
197 {
198 if (observer() && _n_collapses % observer()->get_interval() == 0)
199 {
200 observer()->notify(_n_collapses);
201 return !observer()->abort();
202 }
203 return true;
204 }
205
207 void set_uninitialized() {
208 initialized_ = false;
209 cmodule_ = 0;
210 bmodules_.clear();
211 }
212
213 void update_modules(CollapseInfo& _ci)
214 {
215 typename ModuleList::iterator m_it, m_end = bmodules_.end();
216 for (m_it = bmodules_.begin(); m_it != m_end; ++m_it)
217 (*m_it)->postprocess_collapse(_ci);
218 cmodule_->postprocess_collapse(_ci);
219 }
220
221
222 protected: //---------------------------------------------------- private methods
223
228 bool is_collapse_legal(const CollapseInfo& _ci);
229
231 float collapse_priority(const CollapseInfo& _ci);
232
234 void preprocess_collapse(CollapseInfo& _ci);
235
237 void postprocess_collapse(CollapseInfo& _ci);
238
247 void set_error_tolerance_factor(double _factor);
248
253 void reset(){ initialized_ = false; };
254
255
256 private: //------------------------------------------------------- private data
257
258
260 Mesh& mesh_;
261
263 ModuleList bmodules_;
264
266 Module* cmodule_;
267
269 ModuleList all_modules_;
270
272 bool initialized_;
273
275 Observer* observer_;
276
277 };
278
279 //=============================================================================
280 } // END_NS_DECIMATER
281 } // END_NS_OPENMESH
282 //=============================================================================
283 #if defined(OM_INCLUDE_TEMPLATES) && !defined(OPENMESH_BASE_DECIMATER_DECIMATERT_CC)
284 #define OPENMESH_BASE_DECIMATER_TEMPLATES
285 #include "BaseDecimaterT.cc"
286 #endif
287 //=============================================================================
288 #endif // OPENMESH_BASE_DECIMATER_DECIMATERT_HH defined
289 //=============================================================================
OpenMesh::Decimater::BaseDecimaterT::mesh
Mesh & mesh()
access mesh. used in modules.
Definition: BaseDecimaterT.hh:143
OpenMesh::Decimater::BaseDecimaterT::initialize
bool initialize()
Initialize decimater and decimating modules.
Definition: BaseDecimaterT.cc:243
OpenMesh::Decimater::CollapseInfoT
Stores information about a halfedge collapse.
Definition: CollapseInfoT.hh:80
OpenMesh::Decimater::BaseDecimaterT
Definition: BaseDecimaterT.hh:90
ModBaseT.hh
Base class for all decimation modules.
OpenMesh::Decimater::BaseDecimaterT::observer
Observer * observer()
Get current observer of a decimater.
Definition: BaseDecimaterT.hh:137
OpenMesh::Decimater::BaseDecimaterT::is_initialized
bool is_initialized() const
Returns whether decimater has been successfully initialized.
Definition: BaseDecimaterT.hh:116
OpenMesh::Decimater::BaseDecimaterT::collapse_priority
float collapse_priority(const CollapseInfo &_ci)
Calculate priority of an halfedge collapse (using the modules)
Definition: BaseDecimaterT.cc:161
OpenMesh::Decimater::BaseDecimaterT::notify_observer
bool notify_observer(size_t _n_collapses)
returns false, if abort requested by observer
Definition: BaseDecimaterT.hh:196
OpenMesh::Decimater::ModHandleT
Handle for mesh decimation modules.
Definition: ModBaseT.hh:88
OpenMesh::Decimater::Observer::notify
virtual void notify(size_t _step)=0
callback
Observer.hh
This file contains an observer class which is used to monitor the progress of an decimater.
OpenMesh::Decimater::BaseDecimaterT::info
void info(std::ostream &_os)
Print information about modules to _os.
Definition: BaseDecimaterT.cc:212
OpenMesh::Decimater::BaseDecimaterT::is_collapse_legal
bool is_collapse_legal(const CollapseInfo &_ci)
Is an edge collapse legal? Performs topological test only.
Definition: BaseDecimaterT.cc:107
OpenMesh::Decimater::BaseDecimaterModule
base class decimater framework
Definition: BaseDecimaterT.hh:85
OpenMesh::Decimater::Observer::abort
virtual bool abort() const
Abort callback.
Definition: Observer.cc:88
OpenMesh::Utils::Noncopyable
This class demonstrates the non copyable idiom.
Definition: Noncopyable.hh:76
OpenMesh
Contains all the mesh ingredients like the polygonal mesh, the triangle mesh, different mesh kernels ...
Definition: MeshItems.hh:64
OpenMesh::Decimater::BaseDecimaterT::add
bool add(ModHandleT< _Module > &_mh)
add module to decimater
Definition: BaseDecimaterT.hh:147
OpenMesh::Decimater::BaseDecimaterT::set_observer
void set_observer(Observer *_o)
Add observer.
Definition: BaseDecimaterT.hh:131
OpenMesh::Decimater::Observer
Observer class.
Definition: Observer.hh:82
OpenMesh::Decimater::ModHandleT::is_valid
bool is_valid() const
Check handle status.
Definition: ModBaseT.hh:105
OpenMesh::Decimater::BaseDecimaterT::set_uninitialized
void set_uninitialized()
Reset the initialized flag, and clear the bmodules_ and cmodule_.
Definition: BaseDecimaterT.hh:207
OpenMesh::Decimater::BaseDecimaterT::reset
void reset()
Reset the status of this class.
Definition: BaseDecimaterT.hh:253
OpenMesh::Decimater::ModBaseT::postprocess_collapse
virtual void postprocess_collapse(const CollapseInfoT< MeshT > &)
After _from_vh has been collapsed into _to_vh, this method will be called.
Definition: ModBaseT.hh:262
OpenMesh::Decimater::BaseDecimaterT::module
Module & module(ModHandleT< Module > &_mh)
get module referenced by handle _mh
Definition: BaseDecimaterT.hh:186
OpenMesh::Decimater::BaseDecimaterT::set_error_tolerance_factor
void set_error_tolerance_factor(double _factor)
This provides a function that allows the setting of a percentage of the original constraint of the mo...
Definition: BaseDecimaterT.cc:198
OpenMesh::Decimater::BaseDecimaterT::postprocess_collapse
void postprocess_collapse(CollapseInfo &_ci)
Post-process a collapse.
Definition: BaseDecimaterT.cc:174
OpenMesh::Decimater::BaseDecimaterT::preprocess_collapse
void preprocess_collapse(CollapseInfo &_ci)
Pre-process a collapse.
Definition: BaseDecimaterT.cc:186
OpenMesh::Decimater::ModBaseT
Base class for all decimation modules.
Definition: ModBaseT.hh:197