OpenMesh: OpenMesh/Core/Geometry/VectorT_inc.hh Source File

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VectorT_inc.hh
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50
51 // Set template keywords and class names properly when
52 // parsing with doxygen. This only seems to work this way since
53 // the scope of preprocessor defines is limited to one file in doxy.
54 #ifdef DOXYGEN
55
56 // Only used for correct doxygen parsing
57 #define OPENMESH_VECTOR_HH
58
59 #define DIM N
60 #define TEMPLATE_HEADER template <typename Scalar, int N>
61 #define CLASSNAME VectorT
62 #define DERIVED VectorDataT<Scalar,N>
63 #define unroll(expr) for (int i=0; i<N; ++i) expr(i)
64
65 #endif
66
67 #if defined( OPENMESH_VECTOR_HH )
68
69 // ----------------------------------------------------------------------------
70
71 TEMPLATE_HEADER
72 class CLASSNAME : public DERIVED
73 {
74 private:
75 typedef DERIVED Base;
76 public:
77
78 //---------------------------------------------------------------- class info
79
81 typedef Scalar value_type;
82
84 typedef VectorT<Scalar,DIM> vector_type;
85
87 static inline int dim() { return DIM; }
88
90 static inline size_t size() { return DIM; }
91
92 static const size_t size_ = DIM;
93
94
95 //-------------------------------------------------------------- constructors
96
98 inline VectorT() {}
99
101 explicit inline VectorT(const Scalar& v) {
102 // assert(DIM==1);
103 // values_[0] = v0;
104 vectorize(v);
105 }
106
107 #if DIM == 2
108 inline VectorT(const Scalar v0, const Scalar v1) {
110 Base::values_[0] = v0; Base::values_[1] = v1;
111 }
112 #endif
113
114 #if DIM == 3
115 inline VectorT(const Scalar v0, const Scalar v1, const Scalar v2) {
117 Base::values_[0]=v0; Base::values_[1]=v1; Base::values_[2]=v2;
118 }
119 #endif
120
121 #if DIM == 4
122 inline VectorT(const Scalar v0, const Scalar v1,
124 const Scalar v2, const Scalar v3) {
125 Base::values_[0]=v0; Base::values_[1]=v1; Base::values_[2]=v2; Base::values_[3]=v3;
126 }
127
128 VectorT homogenized() const { return VectorT(Base::values_[0]/Base::values_[3], Base::values_[1]/Base::values_[3], Base::values_[2]/Base::values_[3], 1); }
129 #endif
130
131 #if DIM == 5
132 inline VectorT(const Scalar v0, const Scalar v1, const Scalar v2,
134 const Scalar v3, const Scalar v4) {
135 Base::values_[0]=v0; Base::values_[1]=v1;Base::values_[2]=v2; Base::values_[3]=v3; Base::values_[4]=v4;
136 }
137 #endif
138
139 #if DIM == 6
140 inline VectorT(const Scalar v0, const Scalar v1, const Scalar v2,
142 const Scalar v3, const Scalar v4, const Scalar v5) {
143 Base::values_[0]=v0; Base::values_[1]=v1; Base::values_[2]=v2;
144 Base::values_[3]=v3; Base::values_[4]=v4; Base::values_[5]=v5;
145 }
146 #endif
147
149 explicit inline VectorT(const Scalar _values[DIM]) {
150 memcpy(data(), _values, DIM*sizeof(Scalar));
151 }
152
153
154 #ifdef OM_CC_MIPS
155 // mipspro need this method
157 inline vector_type& operator=(const vector_type& _rhs) {
158 memcpy(Base::values_, _rhs.Base::values_, DIM*sizeof(Scalar));
159 return *this;
160 }
161 #endif
162
163
165 template<typename otherScalarType>
166 explicit inline VectorT(const VectorT<otherScalarType,DIM>& _rhs) {
167 operator=(_rhs);
168 }
169
170
171
172
173 //--------------------------------------------------------------------- casts
174
176 template<typename otherScalarType>
177 inline vector_type& operator=(const VectorT<otherScalarType,DIM>& _rhs) {
178 #define expr(i) Base::values_[i] = (Scalar)_rhs[i];
179 unroll(expr);
180 #undef expr
181 return *this;
182 }
183
184 // /// cast to Scalar array
185 // inline operator Scalar*() { return Base::values_; }
186
187 // /// cast to const Scalar array
188 // inline operator const Scalar*() const { return Base::values_; }
189
191 inline Scalar* data() { return Base::values_; }
192
194 inline const Scalar*data() const { return Base::values_; }
195
196
197 //----------------------------------------------------------- element access
198
199 // /// get i'th element read-write
200 // inline Scalar& operator[](int _i) {
201 // assert(_i>=0 && _i<DIM); return Base::values_[_i];
202 // }
203
204 // /// get i'th element read-only
205 // inline const Scalar& operator[](int _i) const {
206 // assert(_i>=0 && _i<DIM); return Base::values_[_i];
207 // }
208
210 inline Scalar& operator[](size_t _i) {
211 assert(_i<DIM); return Base::values_[_i];
212 }
213
215 inline const Scalar& operator[](size_t _i) const {
216 assert(_i<DIM); return Base::values_[_i];
217 }
218
219
220
221
222 //---------------------------------------------------------------- comparsion
223
225 inline bool operator==(const vector_type& _rhs) const {
226 #define expr(i) if(Base::values_[i]!=_rhs.Base::values_[i]) return false;
227 unroll(expr);
228 #undef expr
229 return true;
230 }
231
233 inline bool operator!=(const vector_type& _rhs) const {
234 return !(*this == _rhs);
235 }
236
237
238
239
240 //---------------------------------------------------------- scalar operators
241
243 inline vector_type& operator*=(const Scalar& _s) {
244 #define expr(i) Base::values_[i] *= _s;
245 unroll(expr);
246 #undef expr
247 return *this;
248 }
249
252 inline vector_type& operator/=(const Scalar& _s) {
253 #define expr(i) Base::values_[i] /= _s;
254 unroll(expr);
255 #undef expr
256 return *this;
257 }
258
259
261 inline vector_type operator*(const Scalar& _s) const {
262 #if DIM==N
263 return vector_type(*this) *= _s;
264 #else
265 #define expr(i) Base::values_[i] * _s
266 return vector_type(unroll_csv(expr));
267 #undef expr
268 #endif
269 }
270
271
273 inline vector_type operator/(const Scalar& _s) const {
274 #if DIM==N
275 return vector_type(*this) /= _s;
276 #else
277 #define expr(i) Base::values_[i] / _s
278 return vector_type(unroll_csv(expr));
279 #undef expr
280 #endif
281 }
282
283
284
285
286
287
288 //---------------------------------------------------------- vector operators
289
291 inline vector_type& operator*=(const vector_type& _rhs) {
292 #define expr(i) Base::values_[i] *= _rhs[i];
293 unroll(expr);
294 #undef expr
295 return *this;
296 }
297
299 inline vector_type& operator/=(const vector_type& _rhs) {
300 #define expr(i) Base::values_[i] /= _rhs[i];
301 unroll(expr);
302 #undef expr
303 return *this;
304 }
305
307 inline vector_type& operator-=(const vector_type& _rhs) {
308 #define expr(i) Base::values_[i] -= _rhs[i];
309 unroll(expr);
310 #undef expr
311 return *this;
312 }
313
315 inline vector_type& operator+=(const vector_type& _rhs) {
316 #define expr(i) Base::values_[i] += _rhs[i];
317 unroll(expr);
318 #undef expr
319 return *this;
320 }
321
322
324 inline vector_type operator*(const vector_type& _v) const {
325 #if DIM==N
326 return vector_type(*this) *= _v;
327 #else
328 #define expr(i) Base::values_[i] * _v.Base::values_[i]
329 return vector_type(unroll_csv(expr));
330 #undef expr
331 #endif
332 }
333
334
336 inline vector_type operator/(const vector_type& _v) const {
337 #if DIM==N
338 return vector_type(*this) /= _v;
339 #else
340 #define expr(i) Base::values_[i] / _v.Base::values_[i]
341 return vector_type(unroll_csv(expr));
342 #undef expr
343 #endif
344 }
345
346
348 inline vector_type operator+(const vector_type& _v) const {
349 #if DIM==N
350 return vector_type(*this) += _v;
351 #else
352 #define expr(i) Base::values_[i] + _v.Base::values_[i]
353 return vector_type(unroll_csv(expr));
354 #undef expr
355 #endif
356 }
357
358
360 inline vector_type operator-(const vector_type& _v) const {
361 #if DIM==N
362 return vector_type(*this) -= _v;
363 #else
364 #define expr(i) Base::values_[i] - _v.Base::values_[i]
365 return vector_type(unroll_csv(expr));
366 #undef expr
367 #endif
368 }
369
370
372 inline vector_type operator-(void) const {
373 vector_type v;
374 #define expr(i) v.Base::values_[i] = -Base::values_[i];
375 unroll(expr);
376 #undef expr
377 return v;
378 }
379
380
383 inline VectorT<Scalar,3> operator%(const VectorT<Scalar,3>& _rhs) const
384 #if DIM==3
385 {
386 return
387 VectorT<Scalar,3>(Base::values_[1]*_rhs.Base::values_[2]-Base::values_[2]*_rhs.Base::values_[1],
388 Base::values_[2]*_rhs.Base::values_[0]-Base::values_[0]*_rhs.Base::values_[2],
389 Base::values_[0]*_rhs.Base::values_[1]-Base::values_[1]*_rhs.Base::values_[0]);
390 }
391 #else
392 ;
393 #endif
394
395
398 inline Scalar operator|(const vector_type& _rhs) const {
399 Scalar p(0);
400 #define expr(i) p += Base::values_[i] * _rhs.Base::values_[i];
401 unroll(expr);
402 #undef expr
403 return p;
404 }
405
406
407
408
409
410 //------------------------------------------------------------ euclidean norm
411
413
414 inline Scalar norm() const { return (Scalar)sqrt(sqrnorm()); }
416 inline Scalar length() const { return norm(); } // OpenSG interface
417
419 inline Scalar sqrnorm() const
420 {
421 #if DIM==N
422 Scalar s(0);
423 #define expr(i) s += Base::values_[i] * Base::values_[i];
424 unroll(expr);
425 #undef expr
426 return s;
427 #else
428 #define expr(i) Base::values_[i]*Base::values_[i]
429 return (unroll_comb(expr, +));
430 #undef expr
431 #endif
432 }
433
437 inline vector_type& normalize()
438 {
439 *this /= norm();
440 return *this;
441 }
442
446 inline const vector_type normalized() const
447 {
448 return *this / norm();
449 }
450
453 inline vector_type& normalize_cond()
454 {
455 Scalar n = norm();
456 if (n != (Scalar)0.0)
457 {
458 *this /= n;
459 }
460 return *this;
461 }
462
464
465 //------------------------------------------------------------ euclidean norm
466
468
469
471 inline Scalar l1_norm() const
472 {
473 #if DIM==N
474 Scalar s(0);
475 #define expr(i) s += std::abs(Base::values_[i]);
476 unroll(expr);
477 #undef expr
478 return s;
479 #else
480 #define expr(i) std::abs(Base::values_[i])
481 return (unroll_comb(expr, +));
482 #undef expr
483 #endif
484 }
485
487 inline Scalar l8_norm() const
488 {
489 return max_abs();
490 }
491
493
494 //------------------------------------------------------------ max, min, mean
495
497
498
500 inline Scalar max() const
501 {
502 Scalar m(Base::values_[0]);
503 for(int i=1; i<DIM; ++i) if(Base::values_[i]>m) m=Base::values_[i];
504 return m;
505 }
506
508 inline Scalar max_abs() const
509 {
510 Scalar m(std::abs(Base::values_[0]));
511 for(int i=1; i<DIM; ++i)
512 if(std::abs(Base::values_[i])>m)
513 m=std::abs(Base::values_[i]);
514 return m;
515 }
516
517
519 inline Scalar min() const
520 {
521 Scalar m(Base::values_[0]);
522 for(int i=1; i<DIM; ++i) if(Base::values_[i]<m) m=Base::values_[i];
523 return m;
524 }
525
527 inline Scalar min_abs() const
528 {
529 Scalar m(std::abs(Base::values_[0]));
530 for(int i=1; i<DIM; ++i)
531 if(std::abs(Base::values_[i])<m)
532 m=std::abs(Base::values_[i]);
533 return m;
534 }
535
537 inline Scalar mean() const {
538 Scalar m(Base::values_[0]);
539 for(int i=1; i<DIM; ++i) m+=Base::values_[i];
540 return m/Scalar(DIM);
541 }
542
544 inline Scalar mean_abs() const {
545 Scalar m(std::abs(Base::values_[0]));
546 for(int i=1; i<DIM; ++i) m+=std::abs(Base::values_[i]);
547 return m/Scalar(DIM);
548 }
549
550
552 inline vector_type& minimize(const vector_type& _rhs) {
553 #define expr(i) if (_rhs[i] < Base::values_[i]) Base::values_[i] = _rhs[i];
554 unroll(expr);
555 #undef expr
556 return *this;
557 }
558
560 inline bool minimized(const vector_type& _rhs) {
561 bool result(false);
562 #define expr(i) if (_rhs[i] < Base::values_[i]) { Base::values_[i] = _rhs[i]; result = true; }
563 unroll(expr);
564 #undef expr
565 return result;
566 }
567
569 inline vector_type& maximize(const vector_type& _rhs) {
570 #define expr(i) if (_rhs[i] > Base::values_[i]) Base::values_[i] = _rhs[i];
571 unroll(expr);
572 #undef expr
573 return *this;
574 }
575
577 inline bool maximized(const vector_type& _rhs) {
578 bool result(false);
579 #define expr(i) if (_rhs[i] > Base::values_[i]) { Base::values_[i] =_rhs[i]; result = true; }
580 unroll(expr);
581 #undef expr
582 return result;
583 }
584
586 inline vector_type min(const vector_type& _rhs) const {
587 return vector_type(*this).minimize(_rhs);
588 }
589
591 inline vector_type max(const vector_type& _rhs) const {
592 return vector_type(*this).maximize(_rhs);
593 }
594
596
597 //------------------------------------------------------------ misc functions
598
600 template<typename Functor>
601 inline vector_type apply(const Functor& _func) const {
602 vector_type result;
603 #define expr(i) result[i] = _func(Base::values_[i]);
604 unroll(expr);
605 #undef expr
606 return result;
607 }
608
610 vector_type& vectorize(const Scalar& _s) {
611 #define expr(i) Base::values_[i] = _s;
612 unroll(expr);
613 #undef expr
614 return *this;
615 }
616
617
619 static vector_type vectorized(const Scalar& _s) {
620 return vector_type().vectorize(_s);
621 }
622
623
625 bool operator<(const vector_type& _rhs) const {
626 #define expr(i) if (Base::values_[i] != _rhs.Base::values_[i]) \
627 return (Base::values_[i] < _rhs.Base::values_[i]);
628 unroll(expr);
629 #undef expr
630 return false;
631 }
632 };
633
634
635
637 TEMPLATE_HEADER
638 inline std::istream&
639 operator>>(std::istream& is, VectorT<Scalar,DIM>& vec)
640 {
641 #define expr(i) is >> vec[i];
642 unroll(expr);
643 #undef expr
644 return is;
645 }
646
647
649 TEMPLATE_HEADER
650 inline std::ostream&
651 operator<<(std::ostream& os, const VectorT<Scalar,DIM>& vec)
652 {
653 #if DIM==N
654 for(int i=0; i<N-1; ++i) os << vec[i] << " ";
655 os << vec[N-1];
656 #else
657 #define expr(i) vec[i]
658 os << unroll_comb(expr, << " " <<);
659 #undef expr
660 #endif
661
662 return os;
663 }
664
665
666 // ----------------------------------------------------------------------------
667 #endif // included by VectorT.hh
668 //=============================================================================
VectorT::normalize
vector_type & normalize()
normalize vector, return normalized vector
Definition: VectorT_inc.hh:437
VectorT::operator*
vector_type operator*(const vector_type &_v) const
component-wise vector multiplication
Definition: VectorT_inc.hh:324
VectorT::value_type
Scalar value_type
the type of the scalar used in this template
Definition: VectorT_inc.hh:81
VectorT::mean_abs
Scalar mean_abs() const
return absolute arithmetic mean
Definition: VectorT_inc.hh:544
VectorT::l1_norm
Scalar l1_norm() const
compute L1 (Manhattan) norm
Definition: VectorT_inc.hh:471
VectorT::operator<
bool operator<(const vector_type &_rhs) const
lexicographical comparison
Definition: VectorT_inc.hh:625
VectorT::data
const Scalar * data() const
access to const Scalar array
Definition: VectorT_inc.hh:194
VectorT::vectorized
static vector_type vectorized(const Scalar &_s)
store the same value in each component
Definition: VectorT_inc.hh:619
VectorT::operator[]
Scalar & operator[](size_t _i)
get i&#39;th element read-write
Definition: VectorT_inc.hh:210
VectorT::max
vector_type max(const vector_type &_rhs) const
component-wise max
Definition: VectorT_inc.hh:591
VectorT::min
vector_type min(const vector_type &_rhs) const
component-wise min
Definition: VectorT_inc.hh:586
VectorT::minimized
bool minimized(const vector_type &_rhs)
minimize values and signalize coordinate minimization
Definition: VectorT_inc.hh:560
VectorT::operator*=
vector_type & operator*=(const vector_type &_rhs)
component-wise self-multiplication
Definition: VectorT_inc.hh:291
VectorT::size
static size_t size()
returns dimension of the vector
Definition: VectorT_inc.hh:90
VectorT::operator*=
vector_type & operator*=(const Scalar &_s)
component-wise self-multiplication with scalar
Definition: VectorT_inc.hh:243
VectorT::VectorT
VectorT(const Scalar &v)
special constructor for 1D vectors
Definition: VectorT_inc.hh:101
VectorT::operator[]
const Scalar & operator[](size_t _i) const
get i&#39;th element read-only
Definition: VectorT_inc.hh:215
VectorT::normalize_cond
vector_type & normalize_cond()
normalize vector, return normalized vector and avoids div by zero
Definition: VectorT_inc.hh:453
VectorT::operator/=
vector_type & operator/=(const Scalar &_s)
component-wise self-division by scalar
Definition: VectorT_inc.hh:252
VectorT::operator/=
vector_type & operator/=(const vector_type &_rhs)
component-wise self-division
Definition: VectorT_inc.hh:299
VectorT::minimize
vector_type & minimize(const vector_type &_rhs)
minimize values: same as *this = min(*this, _rhs), but faster
Definition: VectorT_inc.hh:552
VectorT::l8_norm
Scalar l8_norm() const
compute l8_norm
Definition: VectorT_inc.hh:487
VectorT::normalized
const vector_type normalized() const
return normalized vector
Definition: VectorT_inc.hh:446
VectorT::operator*
vector_type operator*(const Scalar &_s) const
component-wise multiplication with scalar
Definition: VectorT_inc.hh:261
VectorT::dim
static int dim()
returns dimension of the vector (deprecated)
Definition: VectorT_inc.hh:87
VectorT::apply
vector_type apply(const Functor &_func) const
component-wise apply function object with Scalar operator()(Scalar).
Definition: VectorT_inc.hh:601
VectorT::sqrnorm
Scalar sqrnorm() const
compute squared euclidean norm
Definition: VectorT_inc.hh:419
VectorT::operator|
Scalar operator|(const vector_type &_rhs) const
compute scalar product
Definition: VectorT_inc.hh:398
VectorT::maximize
vector_type & maximize(const vector_type &_rhs)
maximize values: same as *this = max(*this, _rhs), but faster
Definition: VectorT_inc.hh:569
VectorT::operator==
bool operator==(const vector_type &_rhs) const
component-wise comparison
Definition: VectorT_inc.hh:225
VectorT::operator!=
bool operator!=(const vector_type &_rhs) const
component-wise comparison
Definition: VectorT_inc.hh:233
VectorT::min_abs
Scalar min_abs() const
return the minimal absolute component
Definition: VectorT_inc.hh:527
VectorT::operator=
vector_type & operator=(const VectorT< otherScalarType, N > &_rhs)
cast from vector with a different scalar type
Definition: VectorT_inc.hh:177
VectorT::max
Scalar max() const
return the maximal component
Definition: VectorT_inc.hh:500
VectorT::operator/
vector_type operator/(const Scalar &_s) const
component-wise division by with scalar
Definition: VectorT_inc.hh:273
VectorT::VectorT
VectorT(const VectorT< otherScalarType, N > &_rhs)
copy & cast constructor (explicit)
Definition: VectorT_inc.hh:166
VectorT::VectorT
VectorT()
default constructor creates uninitialized values.
Definition: VectorT_inc.hh:98
VectorT::operator/
vector_type operator/(const vector_type &_v) const
component-wise vector division
Definition: VectorT_inc.hh:336
VectorT::operator-
vector_type operator-(void) const
unary minus
Definition: VectorT_inc.hh:372
VectorT::mean
Scalar mean() const
return arithmetic mean
Definition: VectorT_inc.hh:537
VectorT::vector_type
VectorT< Scalar, N > vector_type
type of this vector
Definition: VectorT_inc.hh:84
VectorT::operator+
vector_type operator+(const vector_type &_v) const
component-wise vector addition
Definition: VectorT_inc.hh:348
VectorT::data
Scalar * data()
access to Scalar array
Definition: VectorT_inc.hh:191
VectorT::min
Scalar min() const
return the minimal component
Definition: VectorT_inc.hh:519
VectorT::operator-
vector_type operator-(const vector_type &_v) const
component-wise vector difference
Definition: VectorT_inc.hh:360
VectorT
Definition: VectorT_inc.hh:72
VectorT::max_abs
Scalar max_abs() const
return the maximal absolute component
Definition: VectorT_inc.hh:508
VectorT::operator+=
vector_type & operator+=(const vector_type &_rhs)
vector self-addition
Definition: VectorT_inc.hh:315
VectorT::vectorize
vector_type & vectorize(const Scalar &_s)
store the same value in each component (e.g. to clear all entries)
Definition: VectorT_inc.hh:610
VectorT::VectorT
VectorT(const Scalar _values[N])
construct from a value array (explicit)
Definition: VectorT_inc.hh:149
VectorT::length
Scalar length() const
compute euclidean norm
Definition: VectorT_inc.hh:416
VectorT::maximized
bool maximized(const vector_type &_rhs)
maximize values and signalize coordinate maximization
Definition: VectorT_inc.hh:577
VectorT::operator-=
vector_type & operator-=(const vector_type &_rhs)
vector difference from this
Definition: VectorT_inc.hh:307