OpenMesh: OpenMesh/Core/Utils/Property.hh Source File

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Property.hh
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47 \*===========================================================================*/
48
49 #ifndef OPENMESH_PROPERTY_HH
50 #define OPENMESH_PROPERTY_HH
51
52
53 //== INCLUDES =================================================================
54
55
56 #include <OpenMesh/Core/System/config.h>
57 #include <OpenMesh/Core/Mesh/Handles.hh>
58 #include <OpenMesh/Core/Utils/BaseProperty.hh>
59 #include <vector>
60 #include <string>
61 #include <algorithm>
62
63
64 //== NAMESPACES ===============================================================
65
66 namespace OpenMesh {
67
68 //== CLASS DEFINITION =========================================================
69
88 // TODO: it might be possible to define Property using kind of a runtime info
89 // structure holding the size of T. Then reserve, swap, resize, etc can be written
90 // in pure malloc() style w/o virtual overhead. Template member function proved per
91 // element access to the properties, asserting dynamic_casts in debug
92
93 template <class T>
94 class PropertyT : public BaseProperty
95 {
96 public:
97
98 typedef T Value;
99 typedef std::vector<T> vector_type;
100 typedef T value_type;
101 typedef typename vector_type::reference reference;
102 typedef typename vector_type::const_reference const_reference;
103
104 public:
105
107 PropertyT(const std::string& _name = "<unknown>")
108 : BaseProperty(_name)
109 {}
110
112 PropertyT(const PropertyT & _rhs)
113 : BaseProperty( _rhs ), data_( _rhs.data_ ) {}
114
115 public: // inherited from BaseProperty
116
117 virtual void reserve(size_t _n) { data_.reserve(_n); }
118 virtual void resize(size_t _n) { data_.resize(_n); }
119 virtual void clear() { data_.clear(); vector_type().swap(data_); }
120 virtual void push_back() { data_.push_back(T()); }
121 virtual void swap(size_t _i0, size_t _i1)
122 { std::swap(data_[_i0], data_[_i1]); }
123 virtual void copy(size_t _i0, size_t _i1)
124 { data_[_i1] = data_[_i0]; }
125
126 public:
127
128 virtual void set_persistent( bool _yn )
129 { check_and_set_persistent<T>( _yn ); }
130
131 virtual size_t n_elements() const { return data_.size(); }
132 virtual size_t element_size() const { return IO::size_of<T>(); }
133
134 #ifndef DOXY_IGNORE_THIS
135 struct plus {
136 size_t operator () ( size_t _b, const T& _v )
137 { return _b + IO::size_of<T>(_v); }
138 };
139 #endif
140
141 virtual size_t size_of(void) const
142 {
143 if (element_size() != IO::UnknownSize)
144 return this->BaseProperty::size_of(n_elements());
145 return std::accumulate(data_.begin(), data_.end(), size_t(0), plus());
146 }
147
148 virtual size_t size_of(size_t _n_elem) const
149 { return this->BaseProperty::size_of(_n_elem); }
150
151 virtual size_t store( std::ostream& _ostr, bool _swap ) const
152 {
153 if ( IO::is_streamable<vector_type>() )
154 return IO::store(_ostr, data_, _swap );
155 size_t bytes = 0;
156 for (size_t i=0; i<n_elements(); ++i)
157 bytes += IO::store( _ostr, data_[i], _swap );
158 return bytes;
159 }
160
161 virtual size_t restore( std::istream& _istr, bool _swap )
162 {
163 if ( IO::is_streamable<vector_type>() )
164 return IO::restore(_istr, data_, _swap );
165 size_t bytes = 0;
166 for (size_t i=0; i<n_elements(); ++i)
167 bytes += IO::restore( _istr, data_[i], _swap );
168 return bytes;
169 }
170
171 public: // data access interface
172
174 const T* data() const {
175
176 if( data_.empty() )
177 return 0;
178
179 return &data_[0];
180 }
181
183 vector_type& data_vector() {
184 return data_;
185 }
186
188 const vector_type& data_vector() const {
189 return data_;
190 }
191
193 reference operator[](int _idx)
194 {
195 assert( size_t(_idx) < data_.size() );
196 return data_[_idx];
197 }
198
200 const_reference operator[](int _idx) const
201 {
202 assert( size_t(_idx) < data_.size());
203 return data_[_idx];
204 }
205
207 PropertyT<T>* clone() const
208 {
209 PropertyT<T>* p = new PropertyT<T>( *this );
210 return p;
211 }
212
213
214 private:
215
216 vector_type data_;
217 };
218
219 //-----------------------------------------------------------------------------
220
221
226 template <>
227 class PropertyT<bool> : public BaseProperty
228 {
229 public:
230
231 typedef std::vector<bool> vector_type;
232 typedef bool value_type;
233 typedef vector_type::reference reference;
234 typedef vector_type::const_reference const_reference;
235
236 public:
237
238 PropertyT(const std::string& _name = "<unknown>")
239 : BaseProperty(_name)
240 { }
241
242 public: // inherited from BaseProperty
243
244 virtual void reserve(size_t _n) { data_.reserve(_n); }
245 virtual void resize(size_t _n) { data_.resize(_n); }
246 virtual void clear() { data_.clear(); vector_type().swap(data_); }
247 virtual void push_back() { data_.push_back(bool()); }
248 virtual void swap(size_t _i0, size_t _i1)
249 { bool t(data_[_i0]); data_[_i0]=data_[_i1]; data_[_i1]=t; }
250 virtual void copy(size_t _i0, size_t _i1)
251 { data_[_i1] = data_[_i0]; }
252
253 public:
254
255 virtual void set_persistent( bool _yn )
256 {
257 check_and_set_persistent<bool>( _yn );
258 }
259
260 virtual size_t n_elements() const { return data_.size(); }
261 virtual size_t element_size() const { return UnknownSize; }
262 virtual size_t size_of() const { return size_of( n_elements() ); }
263 virtual size_t size_of(size_t _n_elem) const
264 {
265 return _n_elem / 8 + ((_n_elem % 8)!=0);
266 }
267
268 size_t store( std::ostream& _ostr, bool /* _swap */ ) const
269 {
270 size_t bytes = 0;
271
272 size_t N = data_.size() / 8;
273 size_t R = data_.size() % 8;
274
275 size_t idx; // element index
276 size_t bidx;
277 unsigned char bits; // bitset
278
279 for (bidx=idx=0; idx < N; ++idx, bidx+=8)
280 {
281 bits = static_cast<unsigned char>(data_[bidx])
282 | (static_cast<unsigned char>(data_[bidx+1]) << 1)
283 | (static_cast<unsigned char>(data_[bidx+2]) << 2)
284 | (static_cast<unsigned char>(data_[bidx+3]) << 3)
285 | (static_cast<unsigned char>(data_[bidx+4]) << 4)
286 | (static_cast<unsigned char>(data_[bidx+5]) << 5)
287 | (static_cast<unsigned char>(data_[bidx+6]) << 6)
288 | (static_cast<unsigned char>(data_[bidx+7]) << 7);
289 _ostr << bits;
290 }
291 bytes = N;
292
293 if (R)
294 {
295 bits = 0;
296 for (idx=0; idx < R; ++idx)
297 bits |= static_cast<unsigned char>(data_[bidx+idx]) << idx;
298 _ostr << bits;
299 ++bytes;
300 }
301
302 assert( bytes == size_of() );
303
304 return bytes;
305 }
306
307 size_t restore( std::istream& _istr, bool /* _swap */ )
308 {
309 size_t bytes = 0;
310
311 size_t N = data_.size() / 8;
312 size_t R = data_.size() % 8;
313
314 size_t idx; // element index
315 size_t bidx; //
316 unsigned char bits; // bitset
317
318 for (bidx=idx=0; idx < N; ++idx, bidx+=8)
319 {
320 _istr >> bits;
321 data_[bidx+0] = (bits & 0x01) != 0;
322 data_[bidx+1] = (bits & 0x02) != 0;
323 data_[bidx+2] = (bits & 0x04) != 0;
324 data_[bidx+3] = (bits & 0x08) != 0;
325 data_[bidx+4] = (bits & 0x10) != 0;
326 data_[bidx+5] = (bits & 0x20) != 0;
327 data_[bidx+6] = (bits & 0x40) != 0;
328 data_[bidx+7] = (bits & 0x80) != 0;
329 }
330 bytes = N;
331
332 if (R)
333 {
334 _istr >> bits;
335 for (idx=0; idx < R; ++idx)
336 data_[bidx+idx] = (bits & (1<<idx)) != 0;
337 ++bytes;
338 }
339
340 return bytes;
341 }
342
343
344 public:
345
347 vector_type& data_vector() {
348 return data_;
349 }
350
352 const vector_type& data_vector() const {
353 return data_;
354 }
355
357 reference operator[](int _idx)
358 {
359 assert( size_t(_idx) < data_.size() );
360 return data_[_idx];
361 }
362
364 const_reference operator[](int _idx) const
365 {
366 assert( size_t(_idx) < data_.size());
367 return data_[_idx];
368 }
369
371 PropertyT<bool>* clone() const
372 {
373 PropertyT<bool>* p = new PropertyT<bool>( *this );
374 return p;
375 }
376
377
378 private:
379
380 vector_type data_;
381 };
382
383
384 //-----------------------------------------------------------------------------
385
386
389 template <>
390 class PropertyT<std::string> : public BaseProperty
391 {
392 public:
393
394 typedef std::string Value;
395 typedef std::vector<std::string> vector_type;
396 typedef std::string value_type;
397 typedef vector_type::reference reference;
398 typedef vector_type::const_reference const_reference;
399
400 public:
401
402 PropertyT(const std::string& _name = "<unknown>")
403 : BaseProperty(_name)
404 { }
405
406 public: // inherited from BaseProperty
407
408 virtual void reserve(size_t _n) { data_.reserve(_n); }
409 virtual void resize(size_t _n) { data_.resize(_n); }
410 virtual void clear() { data_.clear(); vector_type().swap(data_); }
411 virtual void push_back() { data_.push_back(std::string()); }
412 virtual void swap(size_t _i0, size_t _i1) {
413 std::swap(data_[_i0], data_[_i1]);
414 }
415 virtual void copy(size_t _i0, size_t _i1)
416 { data_[_i1] = data_[_i0]; }
417
418 public:
419
420 virtual void set_persistent( bool _yn )
421 { check_and_set_persistent<std::string>( _yn ); }
422
423 virtual size_t n_elements() const { return data_.size(); }
424 virtual size_t element_size() const { return UnknownSize; }
425 virtual size_t size_of() const
426 { return IO::size_of( data_ ); }
427
428 virtual size_t size_of(size_t /* _n_elem */) const
429 { return UnknownSize; }
430
432 size_t store( std::ostream& _ostr, bool _swap ) const
433 { return IO::store( _ostr, data_, _swap ); }
434
435 size_t restore( std::istream& _istr, bool _swap )
436 { return IO::restore( _istr, data_, _swap ); }
437
438 public:
439
440 const value_type* data() const {
441 if( data_.empty() )
442 return 0;
443
444 return (value_type*) &data_[0];
445 }
446
448 reference operator[](int _idx) {
449 assert( size_t(_idx) < data_.size());
450 return ((value_type*) &data_[0])[_idx];
451 }
452
454 const_reference operator[](int _idx) const {
455 assert( size_t(_idx) < data_.size());
456 return ((value_type*) &data_[0])[_idx];
457 }
458
459 PropertyT<value_type>* clone() const {
460 PropertyT<value_type>* p = new PropertyT<value_type>( *this );
461 return p;
462 }
463 private:
464
465 vector_type data_;
466
467 };
468
470 template <class T>
471 struct BasePropHandleT : public BaseHandle
472 {
473 typedef T Value;
474 typedef std::vector<T> vector_type;
475 typedef T value_type;
476 typedef typename vector_type::reference reference;
477 typedef typename vector_type::const_reference const_reference;
478
479 explicit BasePropHandleT(int _idx=-1) : BaseHandle(_idx) {}
480 };
481
482
486 template <class T>
487 struct VPropHandleT : public BasePropHandleT<T>
488 {
489 typedef T Value;
490 typedef T value_type;
491
492 explicit VPropHandleT(int _idx=-1) : BasePropHandleT<T>(_idx) {}
493 explicit VPropHandleT(const BasePropHandleT<T>& _b) : BasePropHandleT<T>(_b) {}
494 };
495
496
500 template <class T>
501 struct HPropHandleT : public BasePropHandleT<T>
502 {
503 typedef T Value;
504 typedef T value_type;
505
506 explicit HPropHandleT(int _idx=-1) : BasePropHandleT<T>(_idx) {}
507 explicit HPropHandleT(const BasePropHandleT<T>& _b) : BasePropHandleT<T>(_b) {}
508 };
509
510
514 template <class T>
515 struct EPropHandleT : public BasePropHandleT<T>
516 {
517 typedef T Value;
518 typedef T value_type;
519
520 explicit EPropHandleT(int _idx=-1) : BasePropHandleT<T>(_idx) {}
521 explicit EPropHandleT(const BasePropHandleT<T>& _b) : BasePropHandleT<T>(_b) {}
522 };
523
524
528 template <class T>
529 struct FPropHandleT : public BasePropHandleT<T>
530 {
531 typedef T Value;
532 typedef T value_type;
533
534 explicit FPropHandleT(int _idx=-1) : BasePropHandleT<T>(_idx) {}
535 explicit FPropHandleT(const BasePropHandleT<T>& _b) : BasePropHandleT<T>(_b) {}
536 };
537
538
542 template <class T>
543 struct MPropHandleT : public BasePropHandleT<T>
544 {
545 typedef T Value;
546 typedef T value_type;
547
548 explicit MPropHandleT(int _idx=-1) : BasePropHandleT<T>(_idx) {}
549 explicit MPropHandleT(const BasePropHandleT<T>& _b) : BasePropHandleT<T>(_b) {}
550 };
551
552 } // namespace OpenMesh
553 //=============================================================================
554 #endif // OPENMESH_PROPERTY_HH defined
555 //=============================================================================
OpenMesh::PropertyT< bool >::size_of
virtual size_t size_of() const
Return size of property in bytes.
Definition: Property.hh:262
OpenMesh::PropertyT< bool >::restore
size_t restore(std::istream &_istr, bool)
Restore self from a binary block.
Definition: Property.hh:307
OpenMesh::PropertyT::size_of
virtual size_t size_of(void) const
Return size of property in bytes.
Definition: Property.hh:141
OpenMesh::PropertyT::data
const T * data() const
Get pointer to array (does not work for T==bool)
Definition: Property.hh:174
OpenMesh::PropertyT< std::string >::copy
virtual void copy(size_t _i0, size_t _i1)
Copy one element to another.
Definition: Property.hh:415
OpenMesh::PropertyT< bool >::clear
virtual void clear()
Clear all elements and free memory.
Definition: Property.hh:246
OpenMesh::PropertyT< bool >
Property specialization for bool type.
Definition: Property.hh:227
OpenMesh::PropertyT< std::string >::size_of
virtual size_t size_of(size_t) const
Estimated size of property if it has _n_elem elements.
Definition: Property.hh:428
OpenMesh::PropertyT< bool >::n_elements
virtual size_t n_elements() const
Number of elements in property.
Definition: Property.hh:260
OpenMesh::PropertyT::copy
virtual void copy(size_t _i0, size_t _i1)
Copy one element to another.
Definition: Property.hh:123
OpenMesh::PropertyT::size_of
virtual size_t size_of(size_t _n_elem) const
Estimated size of property if it has _n_elem elements.
Definition: Property.hh:148
OpenMesh::PropertyT< std::string >::reserve
virtual void reserve(size_t _n)
Reserve memory for n elements.
Definition: Property.hh:408
OpenMesh::PropertyT< std::string >::store
size_t store(std::ostream &_ostr, bool _swap) const
Store self as one binary block. Max. length of a string is 65535 bytes.
Definition: Property.hh:432
OpenMesh::PropertyT
Default property class for any type T.
Definition: Property.hh:94
OpenMesh::PropertyT::data_vector
vector_type & data_vector()
Get reference to property vector (be careful, improper usage, e.g. resizing, may crash OpenMesh!!!) ...
Definition: Property.hh:183
OpenMesh::PropertyT< bool >::data_vector
vector_type & data_vector()
Get reference to property vector (be careful, improper usage, e.g. resizing, may crash OpenMesh!!!) ...
Definition: Property.hh:347
OpenMesh::PropertyT::set_persistent
virtual void set_persistent(bool _yn)
Enable or disable persistency.
Definition: Property.hh:128
OpenMesh::PropertyT< std::string >::n_elements
virtual size_t n_elements() const
Number of elements in property.
Definition: Property.hh:423
OpenMesh::PropertyT::resize
virtual void resize(size_t _n)
Resize storage to hold n elements.
Definition: Property.hh:118
OpenMesh::PropertyT< std::string >::operator[]
const_reference operator[](int _idx) const
Const access the i&#39;th element. No range check is performed!
Definition: Property.hh:454
OpenMesh
Contains all the mesh ingredients like the polygonal mesh, the triangle mesh, different mesh kernels ...
Definition: MeshItems.hh:64
OpenMesh::IO::size_of
size_t size_of(const T &_v)
Binary read a short from _is and perform byte swapping if _swap is true.
Definition: StoreRestore.hh:94
OpenMesh::PropertyT::push_back
virtual void push_back()
Extend the number of elements by one.
Definition: Property.hh:120
OpenMesh::PropertyT< bool >::data_vector
const vector_type & data_vector() const
Const access to property vector.
Definition: Property.hh:352
OpenMesh::PropertyT::clear
virtual void clear()
Clear all elements and free memory.
Definition: Property.hh:119
OpenMesh::PropertyT< bool >::copy
virtual void copy(size_t _i0, size_t _i1)
Copy one element to another.
Definition: Property.hh:250
OpenMesh::PropertyT::element_size
virtual size_t element_size() const
Size of one element in bytes or UnknownSize if not known.
Definition: Property.hh:132
OpenMesh::PropertyT< bool >::reserve
virtual void reserve(size_t _n)
Reserve memory for n elements.
Definition: Property.hh:244
OpenMesh::PropertyT< bool >::store
size_t store(std::ostream &_ostr, bool) const
Store self as one binary block.
Definition: Property.hh:268
OpenMesh::PropertyT< std::string >::set_persistent
virtual void set_persistent(bool _yn)
Enable or disable persistency.
Definition: Property.hh:420
OpenMesh::PropertyT::data_vector
const vector_type & data_vector() const
Const access to property vector.
Definition: Property.hh:188
OpenMesh::FPropHandleT
Handle representing a face property.
Definition: Property.hh:529
OpenMesh::BaseProperty::UnknownSize
static const size_t UnknownSize
Indicates an error when a size is returned by a member.
Definition: BaseProperty.hh:70
OpenMesh::PropertyT< bool >::clone
PropertyT< bool > * clone() const
Make a copy of self.
Definition: Property.hh:371
OpenMesh::PropertyT< bool >::set_persistent
virtual void set_persistent(bool _yn)
Enable or disable persistency.
Definition: Property.hh:255
OpenMesh::PropertyT< std::string >::push_back
virtual void push_back()
Extend the number of elements by one.
Definition: Property.hh:411
OpenMesh::PropertyT< std::string >::resize
virtual void resize(size_t _n)
Resize storage to hold n elements.
Definition: Property.hh:409
OpenMesh::PropertyT< bool >::operator[]
const_reference operator[](int _idx) const
Const access to the i&#39;th element. No range check is performed!
Definition: Property.hh:364
std
STL namespace.
OpenMesh::PropertyT< std::string >::restore
size_t restore(std::istream &_istr, bool _swap)
Restore self from a binary block.
Definition: Property.hh:435
OpenMesh::VPropHandleT
Handle representing a vertex property.
Definition: Property.hh:487
OpenMesh::PropertyT< bool >::swap
virtual void swap(size_t _i0, size_t _i1)
Let two elements swap their storage place.
Definition: Property.hh:248
OpenMesh::PropertyT::operator[]
reference operator[](int _idx)
Access the i&#39;th element. No range check is performed!
Definition: Property.hh:193
OpenMesh::PropertyT::n_elements
virtual size_t n_elements() const
Number of elements in property.
Definition: Property.hh:131
OpenMesh::PropertyT< bool >::resize
virtual void resize(size_t _n)
Resize storage to hold n elements.
Definition: Property.hh:245
OpenMesh::PropertyT::restore
virtual size_t restore(std::istream &_istr, bool _swap)
Restore self from a binary block.
Definition: Property.hh:161
OpenMesh::PropertyT::PropertyT
PropertyT(const std::string &_name="<unknown>")
Default constructor.
Definition: Property.hh:107
OpenMesh::PropertyT::swap
virtual void swap(size_t _i0, size_t _i1)
Let two elements swap their storage place.
Definition: Property.hh:121
OpenMesh::PropertyT::store
virtual size_t store(std::ostream &_ostr, bool _swap) const
Store self as one binary block.
Definition: Property.hh:151
OpenMesh::PropertyT< bool >::element_size
virtual size_t element_size() const
Size of one element in bytes or UnknownSize if not known.
Definition: Property.hh:261
OpenMesh::BaseProperty
Abstract class defining the basic interface of a dynamic property.
Definition: BaseProperty.hh:65
OpenMesh::EPropHandleT
Handle representing an edge property.
Definition: Property.hh:515
OpenMesh::PropertyT< std::string >::element_size
virtual size_t element_size() const
Size of one element in bytes or UnknownSize if not known.
Definition: Property.hh:424
OpenMesh::BasePropHandleT
Base property handle.
Definition: Property.hh:471
OpenMesh::PropertyT< std::string >::clone
PropertyT< value_type > * clone() const
Return a deep copy of self.
Definition: Property.hh:459
OpenMesh::BaseProperty::BaseProperty
BaseProperty(const std::string &_name="<unknown>")
Default constructor.
Definition: BaseProperty.hh:88
OpenMesh::PropertyT< std::string >::swap
virtual void swap(size_t _i0, size_t _i1)
Let two elements swap their storage place.
Definition: Property.hh:412
OpenMesh::PropertyT< std::string >::operator[]
reference operator[](int _idx)
Access the i&#39;th element. No range check is performed!
Definition: Property.hh:448
OpenMesh::PropertyT::reserve
virtual void reserve(size_t _n)
Reserve memory for n elements.
Definition: Property.hh:117
OpenMesh::PropertyT::clone
PropertyT< T > * clone() const
Make a copy of self.
Definition: Property.hh:207
OpenMesh::MPropHandleT
Handle representing a mesh property.
Definition: Property.hh:543
OpenMesh::PropertyT< std::string >::size_of
virtual size_t size_of() const
Return size of property in bytes.
Definition: Property.hh:425
OpenMesh::HPropHandleT
Handle representing a halfedge property.
Definition: Property.hh:501
OpenMesh::PropertyT< std::string >::clear
virtual void clear()
Clear all elements and free memory.
Definition: Property.hh:410
OpenMesh::BaseProperty::size_of
virtual size_t size_of() const
Return size of property in bytes.
Definition: BaseProperty.hh:145
OpenMesh::BaseHandle
Base class for all handle types.
Definition: Handles.hh:67
OpenMesh::PropertyT::operator[]
const_reference operator[](int _idx) const
Const access to the i&#39;th element. No range check is performed!
Definition: Property.hh:200
OpenMesh::PropertyT< bool >::operator[]
reference operator[](int _idx)
Access the i&#39;th element. No range check is performed!
Definition: Property.hh:357
OpenMesh::PropertyT< bool >::push_back
virtual void push_back()
Extend the number of elements by one.
Definition: Property.hh:247
OpenMesh::PropertyT< bool >::size_of
virtual size_t size_of(size_t _n_elem) const
Estimated size of property if it has _n_elem elements.
Definition: Property.hh:263
OpenMesh::PropertyT::PropertyT
PropertyT(const PropertyT &_rhs)
Copy constructor.
Definition: Property.hh:112