Developer Documentation

VectorT_inc.hh
1 /* ========================================================================= *
2 * *
3 * OpenMesh *
4 * Copyright (c) 2001-2015, RWTH-Aachen University *
5 * Department of Computer Graphics and Multimedia *
6 * All rights reserved. *
7 * www.openmesh.org *
8 * *
9 *---------------------------------------------------------------------------*
10 * This file is part of OpenMesh. *
11 *---------------------------------------------------------------------------*
12 * *
13 * Redistribution and use in source and binary forms, with or without *
14 * modification, are permitted provided that the following conditions *
15 * are met: *
16 * *
17 * 1. Redistributions of source code must retain the above copyright notice, *
18 * this list of conditions and the following disclaimer. *
19 * *
20 * 2. Redistributions in binary form must reproduce the above copyright *
21 * notice, this list of conditions and the following disclaimer in the *
22 * documentation and/or other materials provided with the distribution. *
23 * *
24 * 3. Neither the name of the copyright holder nor the names of its *
25 * contributors may be used to endorse or promote products derived from *
26 * this software without specific prior written permission. *
27 * *
28 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS *
29 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED *
30 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A *
31 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER *
32 * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, *
33 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, *
34 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR *
35 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF *
36 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING *
37 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS *
38 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. *
39 * *
40 * ========================================================================= */
41
42
43
44
45
46 // Set template keywords and class names properly when
47 // parsing with doxygen. This only seems to work this way since
48 // the scope of preprocessor defines is limited to one file in doxy.
49 #ifdef DOXYGEN
50
51 // Only used for correct doxygen parsing
52 #define OPENMESH_VECTOR_HH
53
54 #define DIM N
55 #define TEMPLATE_HEADER template <typename Scalar, int N>
56 #define CLASSNAME VectorT
57 #define DERIVED VectorDataT<Scalar,N>
58 #define unroll(expr) for (int i=0; i<N; ++i) expr(i)
59
60 #endif
61
62 #if defined( OPENMESH_VECTOR_HH )
63
64 // ----------------------------------------------------------------------------
65
66 TEMPLATE_HEADER
67 class CLASSNAME : public DERIVED
68 {
69 private:
70 typedef DERIVED Base;
71 public:
72
73 //---------------------------------------------------------------- class info
74
76 typedef Scalar value_type;
77
79 typedef VectorT<Scalar,DIM> vector_type;
80
82 static inline int dim() { return DIM; }
83
85 static inline size_t size() { return DIM; }
86
87 static const size_t size_ = DIM;
88
89
90 //-------------------------------------------------------------- constructors
91
93 inline VectorT() {}
94
96 explicit inline VectorT(const Scalar& v) {
97 // assert(DIM==1);
98 // values_[0] = v0;
99 vectorize(v);
100 }
101
102 #if DIM == 2
103 inline VectorT(const Scalar v0, const Scalar v1) {
105 Base::values_[0] = v0; Base::values_[1] = v1;
106 }
107 #endif
108
109 #if DIM == 3
110 inline VectorT(const Scalar v0, const Scalar v1, const Scalar v2) {
112 Base::values_[0]=v0; Base::values_[1]=v1; Base::values_[2]=v2;
113 }
114 #endif
115
116 #if DIM == 4
117 inline VectorT(const Scalar v0, const Scalar v1,
119 const Scalar v2, const Scalar v3) {
120 Base::values_[0]=v0; Base::values_[1]=v1; Base::values_[2]=v2; Base::values_[3]=v3;
121 }
122
123 VectorT homogenized() const { return VectorT(Base::values_[0]/Base::values_[3], Base::values_[1]/Base::values_[3], Base::values_[2]/Base::values_[3], 1); }
124 #endif
125
126 #if DIM == 5
127 inline VectorT(const Scalar v0, const Scalar v1, const Scalar v2,
129 const Scalar v3, const Scalar v4) {
130 Base::values_[0]=v0; Base::values_[1]=v1;Base::values_[2]=v2; Base::values_[3]=v3; Base::values_[4]=v4;
131 }
132 #endif
133
134 #if DIM == 6
135 inline VectorT(const Scalar v0, const Scalar v1, const Scalar v2,
137 const Scalar v3, const Scalar v4, const Scalar v5) {
138 Base::values_[0]=v0; Base::values_[1]=v1; Base::values_[2]=v2;
139 Base::values_[3]=v3; Base::values_[4]=v4; Base::values_[5]=v5;
140 }
141 #endif
142
144 explicit inline VectorT(const Scalar _values[DIM]) {
145 memcpy(data(), _values, DIM*sizeof(Scalar));
146 }
147
148
149 #ifdef OM_CC_MIPS
150 // mipspro need this method
152 inline vector_type& operator=(const vector_type& _rhs) {
153 memcpy(Base::values_, _rhs.Base::values_, DIM*sizeof(Scalar));
154 return *this;
155 }
156 #endif
157
158
160 template<typename otherScalarType>
161 explicit inline VectorT(const VectorT<otherScalarType,DIM>& _rhs) {
162 operator=(_rhs);
163 }
164
165
166
167
168 //--------------------------------------------------------------------- casts
169
171 template<typename otherScalarType>
172 inline vector_type& operator=(const VectorT<otherScalarType,DIM>& _rhs) {
173 #define expr(i) Base::values_[i] = (Scalar)_rhs[i];
174 unroll(expr);
175 #undef expr
176 return *this;
177 }
178
179 // /// cast to Scalar array
180 // inline operator Scalar*() { return Base::values_; }
181
182 // /// cast to const Scalar array
183 // inline operator const Scalar*() const { return Base::values_; }
184
186 inline Scalar* data() { return Base::values_; }
187
189 inline const Scalar*data() const { return Base::values_; }
190
191
192 //----------------------------------------------------------- element access
193
194 // /// get i'th element read-write
195 // inline Scalar& operator[](int _i) {
196 // assert(_i>=0 && _i<DIM); return Base::values_[_i];
197 // }
198
199 // /// get i'th element read-only
200 // inline const Scalar& operator[](int _i) const {
201 // assert(_i>=0 && _i<DIM); return Base::values_[_i];
202 // }
203
205 inline Scalar& operator[](size_t _i) {
206 assert(_i<DIM); return Base::values_[_i];
207 }
208
210 inline const Scalar& operator[](size_t _i) const {
211 assert(_i<DIM); return Base::values_[_i];
212 }
213
214
215
216
217 //---------------------------------------------------------------- comparsion
218
220 inline bool operator==(const vector_type& _rhs) const {
221 #define expr(i) if(Base::values_[i]!=_rhs.Base::values_[i]) return false;
222 unroll(expr);
223 #undef expr
224 return true;
225 }
226
228 inline bool operator!=(const vector_type& _rhs) const {
229 return !(*this == _rhs);
230 }
231
232
233
234
235 //---------------------------------------------------------- scalar operators
236
238 inline vector_type& operator*=(const Scalar& _s) {
239 #define expr(i) Base::values_[i] *= _s;
240 unroll(expr);
241 #undef expr
242 return *this;
243 }
244
247 inline vector_type& operator/=(const Scalar& _s) {
248 #define expr(i) Base::values_[i] /= _s;
249 unroll(expr);
250 #undef expr
251 return *this;
252 }
253
254
256 inline vector_type operator*(const Scalar& _s) const {
257 #if DIM==N
258 return vector_type(*this) *= _s;
259 #else
260 #define expr(i) Base::values_[i] * _s
261 return vector_type(unroll_csv(expr));
262 #undef expr
263 #endif
264 }
265
266
268 inline vector_type operator/(const Scalar& _s) const {
269 #if DIM==N
270 return vector_type(*this) /= _s;
271 #else
272 #define expr(i) Base::values_[i] / _s
273 return vector_type(unroll_csv(expr));
274 #undef expr
275 #endif
276 }
277
278
279
280
281
282
283 //---------------------------------------------------------- vector operators
284
286 inline vector_type& operator*=(const vector_type& _rhs) {
287 #define expr(i) Base::values_[i] *= _rhs[i];
288 unroll(expr);
289 #undef expr
290 return *this;
291 }
292
294 inline vector_type& operator/=(const vector_type& _rhs) {
295 #define expr(i) Base::values_[i] /= _rhs[i];
296 unroll(expr);
297 #undef expr
298 return *this;
299 }
300
302 inline vector_type& operator-=(const vector_type& _rhs) {
303 #define expr(i) Base::values_[i] -= _rhs[i];
304 unroll(expr);
305 #undef expr
306 return *this;
307 }
308
310 inline vector_type& operator+=(const vector_type& _rhs) {
311 #define expr(i) Base::values_[i] += _rhs[i];
312 unroll(expr);
313 #undef expr
314 return *this;
315 }
316
317
319 inline vector_type operator*(const vector_type& _v) const {
320 #if DIM==N
321 return vector_type(*this) *= _v;
322 #else
323 #define expr(i) Base::values_[i] * _v.Base::values_[i]
324 return vector_type(unroll_csv(expr));
325 #undef expr
326 #endif
327 }
328
329
331 inline vector_type operator/(const vector_type& _v) const {
332 #if DIM==N
333 return vector_type(*this) /= _v;
334 #else
335 #define expr(i) Base::values_[i] / _v.Base::values_[i]
336 return vector_type(unroll_csv(expr));
337 #undef expr
338 #endif
339 }
340
341
343 inline vector_type operator+(const vector_type& _v) const {
344 #if DIM==N
345 return vector_type(*this) += _v;
346 #else
347 #define expr(i) Base::values_[i] + _v.Base::values_[i]
348 return vector_type(unroll_csv(expr));
349 #undef expr
350 #endif
351 }
352
353
355 inline vector_type operator-(const vector_type& _v) const {
356 #if DIM==N
357 return vector_type(*this) -= _v;
358 #else
359 #define expr(i) Base::values_[i] - _v.Base::values_[i]
360 return vector_type(unroll_csv(expr));
361 #undef expr
362 #endif
363 }
364
365
367 inline vector_type operator-(void) const {
368 vector_type v;
369 #define expr(i) v.Base::values_[i] = -Base::values_[i];
370 unroll(expr);
371 #undef expr
372 return v;
373 }
374
375
378 inline VectorT<Scalar,3> operator%(const VectorT<Scalar,3>& _rhs) const
379 #if DIM==3
380 {
381 return
382 VectorT<Scalar,3>(Base::values_[1]*_rhs.Base::values_[2]-Base::values_[2]*_rhs.Base::values_[1],
383 Base::values_[2]*_rhs.Base::values_[0]-Base::values_[0]*_rhs.Base::values_[2],
384 Base::values_[0]*_rhs.Base::values_[1]-Base::values_[1]*_rhs.Base::values_[0]);
385 }
386 #else
387 ;
388 #endif
389
390
393 inline Scalar operator|(const vector_type& _rhs) const {
394 Scalar p(0);
395 #define expr(i) p += Base::values_[i] * _rhs.Base::values_[i];
396 unroll(expr);
397 #undef expr
398 return p;
399 }
400
401
402
403
404
405 //------------------------------------------------------------ euclidean norm
406
408
409 inline Scalar norm() const { return (Scalar)sqrt(sqrnorm()); }
411 inline Scalar length() const { return norm(); } // OpenSG interface
412
414 inline Scalar sqrnorm() const
415 {
416 #if DIM==N
417 Scalar s(0);
418 #define expr(i) s += Base::values_[i] * Base::values_[i];
419 unroll(expr);
420 #undef expr
421 return s;
422 #else
423 #define expr(i) Base::values_[i]*Base::values_[i]
424 return (unroll_comb(expr, +));
425 #undef expr
426 #endif
427 }
428
432 inline vector_type& normalize()
433 {
434 *this /= norm();
435 return *this;
436 }
437
441 inline const vector_type normalized() const
442 {
443 return *this / norm();
444 }
445
448 inline vector_type& normalize_cond()
449 {
450 Scalar n = norm();
451 if (n != (Scalar)0.0)
452 {
453 *this /= n;
454 }
455 return *this;
456 }
457
459
460 //------------------------------------------------------------ euclidean norm
461
463
464
466 inline Scalar l1_norm() const
467 {
468 #if DIM==N
469 Scalar s(0);
470 #define expr(i) s += std::abs(Base::values_[i]);
471 unroll(expr);
472 #undef expr
473 return s;
474 #else
475 #define expr(i) std::abs(Base::values_[i])
476 return (unroll_comb(expr, +));
477 #undef expr
478 #endif
479 }
480
482 inline Scalar l8_norm() const
483 {
484 return max_abs();
485 }
486
488
489 //------------------------------------------------------------ max, min, mean
490
492
493
495 inline Scalar max() const
496 {
497 Scalar m(Base::values_[0]);
498 for(int i=1; i<DIM; ++i) if(Base::values_[i]>m) m=Base::values_[i];
499 return m;
500 }
501
503 inline Scalar max_abs() const
504 {
505 Scalar m(std::abs(Base::values_[0]));
506 for(int i=1; i<DIM; ++i)
507 if(std::abs(Base::values_[i])>m)
508 m=std::abs(Base::values_[i]);
509 return m;
510 }
511
512
514 inline Scalar min() const
515 {
516 Scalar m(Base::values_[0]);
517 for(int i=1; i<DIM; ++i) if(Base::values_[i]<m) m=Base::values_[i];
518 return m;
519 }
520
522 inline Scalar min_abs() const
523 {
524 Scalar m(std::abs(Base::values_[0]));
525 for(int i=1; i<DIM; ++i)
526 if(std::abs(Base::values_[i])<m)
527 m=std::abs(Base::values_[i]);
528 return m;
529 }
530
532 inline Scalar mean() const {
533 Scalar m(Base::values_[0]);
534 for(int i=1; i<DIM; ++i) m+=Base::values_[i];
535 return m/Scalar(DIM);
536 }
537
539 inline Scalar mean_abs() const {
540 Scalar m(std::abs(Base::values_[0]));
541 for(int i=1; i<DIM; ++i) m+=std::abs(Base::values_[i]);
542 return m/Scalar(DIM);
543 }
544
545
547 inline vector_type& minimize(const vector_type& _rhs) {
548 #define expr(i) if (_rhs[i] < Base::values_[i]) Base::values_[i] = _rhs[i];
549 unroll(expr);
550 #undef expr
551 return *this;
552 }
553
555 inline bool minimized(const vector_type& _rhs) {
556 bool result(false);
557 #define expr(i) if (_rhs[i] < Base::values_[i]) { Base::values_[i] = _rhs[i]; result = true; }
558 unroll(expr);
559 #undef expr
560 return result;
561 }
562
564 inline vector_type& maximize(const vector_type& _rhs) {
565 #define expr(i) if (_rhs[i] > Base::values_[i]) Base::values_[i] = _rhs[i];
566 unroll(expr);
567 #undef expr
568 return *this;
569 }
570
572 inline bool maximized(const vector_type& _rhs) {
573 bool result(false);
574 #define expr(i) if (_rhs[i] > Base::values_[i]) { Base::values_[i] =_rhs[i]; result = true; }
575 unroll(expr);
576 #undef expr
577 return result;
578 }
579
581 inline vector_type min(const vector_type& _rhs) const {
582 return vector_type(*this).minimize(_rhs);
583 }
584
586 inline vector_type max(const vector_type& _rhs) const {
587 return vector_type(*this).maximize(_rhs);
588 }
589
591
592 //------------------------------------------------------------ misc functions
593
595 template<typename Functor>
596 inline vector_type apply(const Functor& _func) const {
597 vector_type result;
598 #define expr(i) result[i] = _func(Base::values_[i]);
599 unroll(expr);
600 #undef expr
601 return result;
602 }
603
605 vector_type& vectorize(const Scalar& _s) {
606 #define expr(i) Base::values_[i] = _s;
607 unroll(expr);
608 #undef expr
609 return *this;
610 }
611
612
614 static vector_type vectorized(const Scalar& _s) {
615 return vector_type().vectorize(_s);
616 }
617
618
620 bool operator<(const vector_type& _rhs) const {
621 #define expr(i) if (Base::values_[i] != _rhs.Base::values_[i]) \
622 return (Base::values_[i] < _rhs.Base::values_[i]);
623 unroll(expr);
624 #undef expr
625 return false;
626 }
627 };
628
629
630
632 TEMPLATE_HEADER
633 inline std::istream&
634 operator>>(std::istream& is, VectorT<Scalar,DIM>& vec)
635 {
636 #define expr(i) is >> vec[i];
637 unroll(expr);
638 #undef expr
639 return is;
640 }
641
642
644 TEMPLATE_HEADER
645 inline std::ostream&
646 operator<<(std::ostream& os, const VectorT<Scalar,DIM>& vec)
647 {
648 #if DIM==N
649 for(int i=0; i<N-1; ++i) os << vec[i] << " ";
650 os << vec[N-1];
651 #else
652 #define expr(i) vec[i]
653 os << unroll_comb(expr, << " " <<);
654 #undef expr
655 #endif
656
657 return os;
658 }
659
660
661 // ----------------------------------------------------------------------------
662 #endif // included by VectorT.hh
663 //=============================================================================
ACG::operator>>
std::istream & operator>>(std::istream &is, Matrix4x4T< Scalar > &m)
read the space-separated components of a vector from a stream */
Definition: Matrix4x4T.hh:295
VectorT
OpenMesh::operator*
auto operator*(const OtherScalar &_s, const VectorT< Scalar, DIM > &rhs) -> decltype(rhs.operator*(_s))
Component wise multiplication from the left.
Definition: Vector11T.hh:673