map3.cpp 18.8 KB
Newer Older
Pierre Kraemer's avatar
Pierre Kraemer committed
1 2 3
/*******************************************************************************
* CGoGN: Combinatorial and Geometric modeling with Generic N-dimensional Maps  *
* version 0.1                                                                  *
4
* Copyright (C) 2009-2011, IGG Team, LSIIT, University of Strasbourg           *
Pierre Kraemer's avatar
Pierre Kraemer committed
5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
*                                                                              *
* This library is free software; you can redistribute it and/or modify it      *
* under the terms of the GNU Lesser General Public License as published by the *
* Free Software Foundation; either version 2.1 of the License, or (at your     *
* option) any later version.                                                   *
*                                                                              *
* This library is distributed in the hope that it will be useful, but WITHOUT  *
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or        *
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License  *
* for more details.                                                            *
*                                                                              *
* You should have received a copy of the GNU Lesser General Public License     *
* along with this library; if not, write to the Free Software Foundation,      *
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA.           *
*                                                                              *
20
* Web site: http://cgogn.u-strasbg.fr/                                         *
Pierre Kraemer's avatar
Pierre Kraemer committed
21 22 23 24 25
* Contact information: cgogn@unistra.fr                                        *
*                                                                              *
*******************************************************************************/

#include "Topology/map/map3.h"
untereiner's avatar
untereiner committed
26
#include "Topology/generic/traversor3.h"
Pierre Kraemer's avatar
Pierre Kraemer committed
27 28 29 30

namespace CGoGN
{

Pierre Kraemer's avatar
merges  
Pierre Kraemer committed
31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61
void Map3::compactTopoRelations(const std::vector<unsigned int>& oldnew)
{
	for (unsigned int i = m_attribs[DART].begin(); i != m_attribs[DART].end(); m_attribs[DART].next(i))
	{
		{
			Dart& d = m_phi1->operator [](i);
			Dart e = Dart(oldnew[d.index]);
			if (d != e)
				d = e;
		}
		{
			Dart& d = m_phi_1->operator [](i);
			Dart e = Dart(oldnew[d.index]);
			if (d != e)
				d = e;
		}
		{
			Dart& d = m_phi2->operator [](i);
			Dart e = Dart(oldnew[d.index]);
			if (d != e)
				d = e;
		}
		{
			Dart& d = m_phi3->operator [](i);
			Dart e = Dart(oldnew[d.index]);
			if (d != e)
				d = e;
		}
	}
}

Pierre Kraemer's avatar
Pierre Kraemer committed
62 63 64
/*! @name Generator and Deletor
 *  To generate or delete volumes in a 3-map
 *************************************************************************/
65 66

void Map3::deleteVolume(Dart d)
Pierre Kraemer's avatar
Pierre Kraemer committed
67 68 69 70
{
	DartMarkerStore mark(*this);		// Lock a marker

	std::vector<Dart> visitedFaces;		// Faces that are traversed
71
	visitedFaces.reserve(512);
Pierre Kraemer's avatar
Pierre Kraemer committed
72 73
	visitedFaces.push_back(d);			// Start with the face of d

74 75 76
//	mark.markOrbit(ORIENTED_FACE, d) ;
	mark.markOrbit(FACE2, d) ;

Pierre Kraemer's avatar
Pierre Kraemer committed
77

78
	for(unsigned int i = 0; i < visitedFaces.size(); ++i)
Pierre Kraemer's avatar
Pierre Kraemer committed
79
	{
80
		Dart e = visitedFaces[i] ;
Pierre Kraemer's avatar
Pierre Kraemer committed
81

82 83
		if(!isBoundaryFace(e))
			unsewVolumes(e) ;
Pierre Kraemer's avatar
Pierre Kraemer committed
84 85 86 87 88 89 90

		do	// add all face neighbours to the table
		{
			Dart ee = phi2(e) ;
			if(!mark.isMarked(ee)) // not already marked
			{
				visitedFaces.push_back(ee) ;
91 92
//				mark.markOrbit(ORIENTED_FACE, ee) ;
				mark.markOrbit(FACE2, ee) ;
Pierre Kraemer's avatar
Pierre Kraemer committed
93 94
			}
			e = phi1(e) ;
95
		} while(e != visitedFaces[i]) ;
Pierre Kraemer's avatar
Pierre Kraemer committed
96 97
	}

untereiner's avatar
untereiner committed
98 99 100
	Dart dd = phi3(d) ;
	Map2::deleteCC(d) ;
	Map2::deleteCC(dd) ;
Pierre Kraemer's avatar
Pierre Kraemer committed
101 102
}

103 104
void Map3::fillHole(Dart d)
{
105 106 107 108 109
	assert(isBoundaryFace(d)) ;
	Dart dd = d ;
	if(!isBoundaryMarked(dd))
		dd = phi3(dd) ;
	boundaryUnmarkOrbit(VOLUME, dd) ;
110 111
}

Pierre Kraemer's avatar
Pierre Kraemer committed
112 113 114 115
/*! @name Topological Operators
 *  Topological operations on 3-maps
 *************************************************************************/

116
Dart Map3::deleteVertex(Dart d)
Pierre Kraemer's avatar
Pierre Kraemer committed
117
{
118 119 120
	if(isBoundaryVertex(d))
		return NIL ;

Pierre Kraemer's avatar
Pierre Kraemer committed
121 122
	// Save the darts around the vertex
	// (one dart per face should be enough)
untereiner's avatar
untereiner committed
123
	std::vector<Dart> fstoretmp;
124
	fstoretmp.reserve(128);
untereiner's avatar
untereiner committed
125 126 127
	FunctorStore fs(fstoretmp);
	foreach_dart_of_vertex(d, fs);

128
	 // just one dart per face
untereiner's avatar
untereiner committed
129
	std::vector<Dart> fstore;
130
	fstore.reserve(128);
untereiner's avatar
untereiner committed
131
	DartMarker mf(*this);
132
	for(unsigned int i = 0; i < fstoretmp.size(); ++i)
Pierre Kraemer's avatar
Pierre Kraemer committed
133
	{
134
		if(!mf.isMarked(fstoretmp[i]))
135
		{
136 137
			mf.markOrbit(FACE, fstoretmp[i]);
			fstore.push_back(fstoretmp[i]);
untereiner's avatar
untereiner committed
138
		}
139
	}
Pierre Kraemer's avatar
Pierre Kraemer committed
140

141
	Dart res = NIL ;
untereiner's avatar
untereiner committed
142 143
	for(std::vector<Dart>::iterator it = fstore.begin() ; it != fstore.end() ; ++it)
	{
144 145 146 147 148 149 150 151
		Dart fit = *it ;
		Dart end = phi_1(fit) ;
		fit = phi1(fit) ;
		while(fit != end)
		{
			Dart d2 = phi2(fit) ;
			Dart d3 = phi3(fit) ;
			Dart d32 = phi2(d3) ;
152

153 154
			if(res == NIL)
				res = d2 ;
155

156 157 158 159
			phi2unsew(d2) ;
			phi2unsew(d32) ;
			phi2sew(d2, d32) ;
			phi2sew(fit, d3) ;
160 161

			fit = phi1(fit) ;
162
		}
untereiner's avatar
untereiner committed
163
	}
164

165
	Map2::deleteCC(d) ;
Pierre Kraemer's avatar
Pierre Kraemer committed
166

167
	return res ;
Pierre Kraemer's avatar
Pierre Kraemer committed
168 169
}

David Cazier's avatar
David Cazier committed
170
Dart Map3::cutEdge(Dart d)
Pierre Kraemer's avatar
Pierre Kraemer committed
171 172 173
{
	Dart prev = d;
	Dart dd = alpha2(d);
David Cazier's avatar
David Cazier committed
174
	Dart nd = Map2::cutEdge(d);
Pierre Kraemer's avatar
Pierre Kraemer committed
175

176
	while (dd != d)
Pierre Kraemer's avatar
Pierre Kraemer committed
177 178 179 180 181 182
	{
		prev = dd;
		dd = alpha2(dd);

		Map2::cutEdge(prev);

183 184 185 186
		Dart d3 = phi3(prev);
		phi3unsew(prev);
		phi3sew(prev, phi1(d3));
		phi3sew(d3, phi1(prev));
Pierre Kraemer's avatar
Pierre Kraemer committed
187 188
	}

189 190 191 192
	Dart d3 = phi3(d);
	phi3unsew(d);
	phi3sew(d, phi1(d3));
	phi3sew(d3, phi1(d));
Pierre Kraemer's avatar
Pierre Kraemer committed
193

David Cazier's avatar
David Cazier committed
194
	return nd;
Pierre Kraemer's avatar
Pierre Kraemer committed
195 196
}

Pierre Kraemer's avatar
Pierre Kraemer committed
197
bool Map3::uncutEdge(Dart d)
untereiner's avatar
untereiner committed
198
{
Pierre Kraemer's avatar
Pierre Kraemer committed
199 200
	if(vertexDegree(phi1(d)) == 2)
	{
201 202
		Dart prev = d ;
		phi3unsew(phi1(prev)) ;
untereiner's avatar
untereiner committed
203

204 205
		Dart dd = d;
		do
Pierre Kraemer's avatar
Pierre Kraemer committed
206 207 208
		{
			prev = dd;
			dd = alpha2(dd);
untereiner's avatar
untereiner committed
209

210 211
			phi3unsew(phi2(prev)) ;
			phi3unsew(phi2(phi1(prev))) ;
Pierre Kraemer's avatar
Pierre Kraemer committed
212 213
			Map2::uncutEdge(prev);
			phi3sew(dd, phi2(prev));
214 215
		} while (dd != d) ;

Pierre Kraemer's avatar
Pierre Kraemer committed
216
		return true;
untereiner's avatar
untereiner committed
217
	}
Pierre Kraemer's avatar
Pierre Kraemer committed
218
	return false;
untereiner's avatar
untereiner committed
219 220
}

untereiner's avatar
untereiner committed
221 222 223 224 225 226
Dart Map3::deleteEdge(Dart d)
{
	if(isBoundaryEdge(d))
		return NIL ;

	Dart res = NIL ;
227 228
	Dart dit = d ;
	do
untereiner's avatar
untereiner committed
229
	{
230 231
		Dart fit = dit ;
		Dart end = fit ;
untereiner's avatar
untereiner committed
232 233 234 235 236 237
		fit = phi1(fit) ;
		while(fit != end)
		{
			Dart d2 = phi2(fit) ;
			Dart d3 = phi3(fit) ;
			Dart d32 = phi2(d3) ;
238

untereiner's avatar
untereiner committed
239 240
			if(res == NIL)
				res = d2 ;
241

untereiner's avatar
untereiner committed
242 243 244 245
			phi2unsew(d2) ;
			phi2unsew(d32) ;
			phi2sew(d2, d32) ;
			phi2sew(fit, d3) ;
246 247

			fit = phi1(fit) ;
untereiner's avatar
untereiner committed
248
		}
249 250 251
		dit = alpha2(dit) ;
	} while(dit != d) ;

untereiner's avatar
untereiner committed
252 253 254 255 256 257 258 259 260
	Map2::deleteCC(d) ;

	return res ;
}

Dart Map3::collapseEdge(Dart d, bool delDegenerateVolumes)
{
	Dart resV = NIL;

261
	Dart dit = d;
untereiner's avatar
untereiner committed
262 263 264

	do
	{
265 266
		Dart e = dit;
		dit = alpha2(dit);
untereiner's avatar
untereiner committed
267

268 269 270
		//test si un seul polyedre autour de l'arete
		if(e == dit)
			resV == phi3(phi2(phi1(e)));
untereiner's avatar
untereiner committed
271

272
		if(delDegenerateVolumes)
untereiner's avatar
untereiner committed
273
		{
274
			Map2::collapseEdge(e, true);
275
			collapseDegeneretedVolume(e);
276 277 278
		}
		else
			Map2::collapseEdge(e, false);
untereiner's avatar
untereiner committed
279

280 281
		if(resV == NIL)
		{
untereiner's avatar
untereiner committed
282

283
		}
untereiner's avatar
untereiner committed
284

285 286
	}while(d != dit);

287 288
	return resV;
}
289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340



//	Dart e = d;
//
//	// stocke un brin par volume autour de l'arete
//	std::vector<Dart> tmp;
//	tmp.reserve(32);
//	do
//	{
//		tmp.push_back(e);
//		e = alpha2(e);
//	} while (e != d);
//
//	// contraction de la 2 carte de chaque 2-arete
//	for (std::vector<Dart>::iterator it = tmp.begin(); it != tmp.end(); ++it)
//	{
//		// un brin d'une face adjacente a l'arrete contracte
//		Dart d = phi2(phi_1(*it));
//		Map2::collapseEdge(*it, true);
//
//		// test de la degeneresence
//		// impossible d'avoir un volume de moins de 4 faces sans avoir de phi2 en points fixe donc on les vire
//		if(delDegenerateVolumes && Map2::volumeDegree(d) < 4)
//		{
//			Dart e = d;
//			// pour tous les brins de la face adjacente
//
//			do
//			{
//				Dart ee = phi3(e);
//				Dart ff = phi3(phi2(e));
//
//				// si les brins ont un voisin par phi3
//				if(ee != e)
//
//					phi3unsew(ee);
//				if(ff != phi2(e))
//					phi3unsew(ff);
//
//				// si les deux en ont un, il faut les coudres ensemble
//				if(ee != e && ff != phi2(e))
//					phi3sew(ee, ff);
//
//				// on peut supprimer les brins de cette arete
//				deleteDart(e);
//				deleteDart(phi2(e));
//				e = phi1(e);
//
//			} while (e != d);
//		}
//	}
untereiner's avatar
untereiner committed
341

342

untereiner's avatar
untereiner committed
343

344
void Map3::splitFace(Dart d, Dart e)
Pierre Kraemer's avatar
Pierre Kraemer committed
345
{
346
	assert(d != e && Map2::sameOrientedFace(d, e)) ;
Pierre Kraemer's avatar
Pierre Kraemer committed
347

348 349
	Dart dd = phi1(phi3(d));
	Dart ee = phi1(phi3(e));
Pierre Kraemer's avatar
Pierre Kraemer committed
350

untereiner's avatar
untereiner committed
351
	Map2::splitFace(d, e);
352
	Map2::splitFace(dd, ee);
Pierre Kraemer's avatar
Pierre Kraemer committed
353

354 355
	phi3sew(phi_1(d), phi_1(ee));
	phi3sew(phi_1(e), phi_1(dd));
Pierre Kraemer's avatar
Pierre Kraemer committed
356 357
}

358 359 360 361 362
bool Map3::collapseDegeneretedVolume(Dart d)
{
	Dart e1 = phi2(d);
	Dart e2 = phi2(phi1(d));

363 364
	//Si les deux faces ne sont pas du bord
	if(!isBoundaryFace(e1) && !isBoundaryFace(e2))
365
	{
366 367 368
		sewVolumes(phi3(e1),phi3(e2));
		deleteVolume(d);
		return true;
369 370 371
	}
	else
	{
372 373 374
		//alors simple suppression du volume degenere
		deleteVolume(d);
		return true;
375
	}
376 377

	return false;
378 379
}

380
void Map3::sewVolumes(Dart d, Dart e, bool withBoundary)
381 382 383
{
	assert(faceDegree(d) == faceDegree(e));

384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414
	// if sewing with fixed points
	if (!withBoundary)
	{
		assert(phi3(d) == d && phi3(e) == e) ;
		Dart fitD = d ;
		Dart fitE = e ;
		do
		{
			phi3sew(fitD, fitE) ;
			fitD = phi1(fitD) ;
			fitE = phi_1(fitE) ;
		} while(fitD != d) ;
		return ;
	}

	Dart dd = phi3(d) ;
	Dart ee = phi3(e) ;

	Dart fitD = dd ;
	Dart fitE = ee ;
	do
	{
		Dart fitD2 = phi2(fitD) ;
		Dart fitE2 = phi2(fitE) ;
		if(fitD2 != fitE)
		{
			phi2unsew(fitD) ;
			phi2unsew(fitE) ;
			phi2sew(fitD2, fitE2) ;
			phi2sew(fitD, fitE) ;
		}
415 416
		phi3unsew(fitD) ;
		phi3unsew(fitE) ;
417 418
		fitD = phi1(fitD) ;
		fitE = phi_1(fitE) ;
419
	} while(fitD != dd) ;
420 421
	Map2::deleteCC(dd) ;

422 423
	fitD = d ;
	fitE = e ;
424 425
	do
	{
426
		phi3sew(fitD, fitE) ;
427 428 429 430 431 432 433
		fitD = phi1(fitD) ;
		fitE = phi_1(fitE) ;
	} while(fitD != d) ;
}

void Map3::unsewVolumes(Dart d)
{
untereiner's avatar
untereiner committed
434 435 436 437 438 439 440 441 442 443 444 445
	assert(!isBoundaryFace(d)) ;

	unsigned int nbE = faceDegree(d) ;
	Dart d3 = phi3(d);

	Dart b1 = newBoundaryCycle(nbE) ;
	Dart b2 = newBoundaryCycle(nbE) ;

	Dart fit1 = d ;
	Dart fit2 = d3 ;
	Dart fitB1 = b1 ;
	Dart fitB2 = b2 ;
446 447
	do
	{
untereiner's avatar
untereiner committed
448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467
		Dart f = findBoundaryFaceOfEdge(fit1) ;
		if(f != NIL)
		{
			Dart f2 = phi2(f) ;
			phi2unsew(f) ;
			phi2sew(fitB1, f) ;
			phi2sew(fitB2, f2) ;
		}
		else
			phi2sew(fitB1, fitB2) ;

		phi3unsew(fit1) ;
		phi3sew(fit1, fitB1) ;
		phi3sew(fit2, fitB2) ;

		fit1 = phi1(fit1) ;
		fit2 = phi_1(fit2) ;
		fitB1 = phi_1(fitB1) ;
		fitB2 = phi1(fitB2) ;
	} while(fitB1 != b1) ;
468 469 470 471
}

bool Map3::mergeVolumes(Dart d)
{
untereiner's avatar
untereiner committed
472
	if(!Map3::isBoundaryFace(d))
473
	{
untereiner's avatar
untereiner committed
474
		Map2::mergeVolumes(d, phi3(d)); // merge the two volumes along common face
475 476 477 478 479
		return true ;
	}
	return false ;
}

untereiner's avatar
untereiner committed
480 481
void Map3::splitVolume(std::vector<Dart>& vd)
{
482
	//assert(checkSimpleOrientedPath(vd)) ;
untereiner's avatar
untereiner committed
483

untereiner's avatar
untereiner committed
484 485 486 487 488 489 490
	Dart e = vd.front();
	Dart e2 = phi2(e);

	//unsew the edge path
	for(std::vector<Dart>::iterator it = vd.begin() ; it != vd.end() ; ++it)
		Map2::unsewFaces(*it);

untereiner's avatar
untereiner committed
491
	Map2::fillHole(e) ;
untereiner's avatar
untereiner committed
492

untereiner's avatar
untereiner committed
493 494 495 496 497 498 499 500 501 502 503 504 505 506
	Dart b = Map1::newBoundaryCycle(vd.size());

	Dart fit1 = phi2(e) ;
	Dart fit2 = b ;
	do
	{
		phi3sew(fit1, fit2) ;

		fit1 = phi1(fit1) ;
		fit2 = phi_1(fit2) ;
	} while(fit2 != b) ;



untereiner's avatar
untereiner committed
507
//	if(isBoundaryMarked(e2))
untereiner's avatar
untereiner committed
508
//		Map2::fillHole(e2) ;
untereiner's avatar
untereiner committed
509

untereiner's avatar
untereiner committed
510
	//sew the two connected components
untereiner's avatar
untereiner committed
511
//	Map3::sewVolumes(phi2(e), phi2(e2), false);
untereiner's avatar
untereiner committed
512 513
}

514 515 516 517
/*! @name Topological Queries
 *  Return or set various topological information
 *************************************************************************/

518
bool Map3::sameVertex(Dart d, Dart e)
519 520 521
{
	DartMarkerStore mv(*this);	// Lock a marker

untereiner's avatar
untereiner committed
522 523 524
	std::vector<Dart> darts;	// Darts that are traversed
	darts.reserve(256);
	darts.push_back(d);			// Start with the dart d
525 526
	mv.mark(d);

527
	for(unsigned int i = 0; i < darts.size(); ++i)
528
	{
529
		if(darts[i] == e)
530 531
			return true;

Pierre Kraemer's avatar
Pierre Kraemer committed
532
		// add phi21 and phi23 successor if they are not marked yet
533
		Dart d2 = phi2(darts[i]);
untereiner's avatar
untereiner committed
534 535
		Dart d21 = phi1(d2); // turn in volume
		Dart d23 = phi3(d2); // change volume
536

untereiner's avatar
untereiner committed
537 538 539 540 541 542 543 544 545
		if(!mv.isMarked(d21))
		{
			darts.push_back(d21);
			mv.mark(d21);
		}
		if(!mv.isMarked(d23))
		{
			darts.push_back(d23);
			mv.mark(d23);
546 547 548 549 550
		}
	}
	return false;
}

untereiner's avatar
untereiner committed
551 552
unsigned int Map3::vertexDegree(Dart d)
{
untereiner's avatar
untereiner committed
553
	unsigned int count = 0;
untereiner's avatar
untereiner committed
554 555
	DartMarkerStore mv(*this);	// Lock a marker

untereiner's avatar
untereiner committed
556 557 558
	std::vector<Dart> darts;	// Darts that are traversed
	darts.reserve(256);
	darts.push_back(d);			// Start with the dart d
untereiner's avatar
untereiner committed
559 560
	mv.mark(d);

561
	for(unsigned int i = 0; i < darts.size(); ++i)
untereiner's avatar
untereiner committed
562 563
	{
		//add phi21 and phi23 successor if they are not marked yet
564
		Dart d2 = phi2(darts[i]);
untereiner's avatar
untereiner committed
565 566 567 568 569
		Dart d21 = phi1(d2); // turn in volume
		Dart d23 = phi3(d2); // change volume

		if(!mv.isMarked(d21))
		{
untereiner's avatar
untereiner committed
570
			darts.push_back(d21);
untereiner's avatar
untereiner committed
571 572
			mv.mark(d21);
		}
untereiner's avatar
untereiner committed
573
		if(!mv.isMarked(d23))
untereiner's avatar
untereiner committed
574
		{
untereiner's avatar
untereiner committed
575
			darts.push_back(d23);
untereiner's avatar
untereiner committed
576 577 578 579 580
			mv.mark(d23);
		}
	}

	DartMarkerStore me(*this);
untereiner's avatar
untereiner committed
581
	for(std::vector<Dart>::iterator it = darts.begin(); it != darts.end() ; ++it)
untereiner's avatar
untereiner committed
582
	{
untereiner's avatar
untereiner committed
583
		if(!me.isMarked(*it))
untereiner's avatar
untereiner committed
584 585
		{
			++count;
untereiner's avatar
untereiner committed
586
			me.markOrbit(EDGE, *it);
untereiner's avatar
untereiner committed
587 588 589 590 591 592
		}
	}

	return count;
}

593 594
bool Map3::isBoundaryVertex(Dart d)
{
untereiner's avatar
untereiner committed
595
	DartMarkerStore mv(*this);	// Lock a marker
596

untereiner's avatar
untereiner committed
597 598 599
	std::vector<Dart> darts;	// Darts that are traversed
	darts.reserve(256);
	darts.push_back(d);			// Start with the dart d
600 601
	mv.mark(d);

602
	for(unsigned int i = 0; i < darts.size(); ++i)
603
	{
604
		if(isBoundaryMarked(darts[i]))
untereiner's avatar
untereiner committed
605
			return true ;
606 607

		//add phi21 and phi23 successor if they are not marked yet
608
		Dart d2 = phi2(darts[i]);
609 610 611 612 613
		Dart d21 = phi1(d2); // turn in volume
		Dart d23 = phi3(d2); // change volume

		if(!mv.isMarked(d21))
		{
untereiner's avatar
untereiner committed
614
			darts.push_back(d21);
615 616
			mv.mark(d21);
		}
untereiner's avatar
untereiner committed
617
		if(!mv.isMarked(d23))
618
		{
untereiner's avatar
untereiner committed
619
			darts.push_back(d23);
620 621 622
			mv.mark(d23);
		}
	}
untereiner's avatar
untereiner committed
623
	return false ;
624 625 626 627
}

bool Map3::sameOrientedEdge(Dart d, Dart e)
{
untereiner's avatar
untereiner committed
628
	Dart it = d;
629 630
	do
	{
untereiner's avatar
untereiner committed
631
		if(it == e)
632
			return true;
untereiner's avatar
untereiner committed
633 634
		it = alpha2(it);
	} while (it != d);
635 636 637
	return false;
}

untereiner's avatar
untereiner committed
638
unsigned int Map3::edgeDegree(Dart d)
639
{
untereiner's avatar
untereiner committed
640
	unsigned int deg = 0;
untereiner's avatar
untereiner committed
641
	Dart it = d;
642 643
	do
	{
untereiner's avatar
untereiner committed
644 645 646
		++deg;
		it = alpha2(it);
	} while(it != d);
647 648 649
	return deg;
}

untereiner's avatar
untereiner committed
650
bool Map3::isBoundaryEdge(Dart d)
651
{
untereiner's avatar
untereiner committed
652 653 654 655 656 657 658 659
	Dart it = d;
	do
	{
		if(isBoundaryMarked(it))
			return true ;
		it = alpha2(it);
	} while(it != d);
	return false;
660 661
}

untereiner's avatar
untereiner committed
662
Dart Map3::findBoundaryFaceOfEdge(Dart d)
663
{
untereiner's avatar
untereiner committed
664 665 666 667 668 669 670 671
	Dart it = d;
	do
	{
		if (isBoundaryMarked(it))
			return it ;
		it = alpha2(it);
	} while(it != d);
	return NIL ;
672 673
}

Pierre Kraemer's avatar
Pierre Kraemer committed
674 675
bool Map3::isBoundaryVolume(Dart d)
{
untereiner's avatar
untereiner committed
676 677
	Traversor3WF<Map3> tra(*this, d);
	for(Dart dit = tra.begin() ; dit != tra.end() ; dit = tra.next())
Pierre Kraemer's avatar
Pierre Kraemer committed
678
	{
untereiner's avatar
untereiner committed
679
		if(isBoundaryMarked(phi3(dit)))
untereiner's avatar
untereiner committed
680
			return true ;
Pierre Kraemer's avatar
Pierre Kraemer committed
681
	}
untereiner's avatar
untereiner committed
682
	return false;
Pierre Kraemer's avatar
Pierre Kraemer committed
683 684
}

untereiner's avatar
untereiner committed
685 686
bool Map3::hasBoundaryEdge(Dart d)
{
untereiner's avatar
untereiner committed
687 688
	Traversor3WE<Map3> tra(*this, d);
	for(Dart dit = tra.begin() ; dit != tra.end() ; dit = tra.next())
untereiner's avatar
untereiner committed
689
	{
untereiner's avatar
untereiner committed
690 691
		if(isBoundaryEdge(dit))
			return true;
untereiner's avatar
untereiner committed
692
	}
untereiner's avatar
untereiner committed
693

untereiner's avatar
untereiner committed
694 695 696
	return false;
}

697
bool Map3::check()
698
{
699 700 701 702 703 704 705 706 707 708
    std::cout << "Check: topology begin" << std::endl;
    DartMarker m(*this);
    for(Dart d = Map3::begin(); d != Map3::end(); Map3::next(d))
    {
        Dart d3 = phi3(d);
        if (phi3(d3) != d) // phi3 involution ?
		{
            std::cout << "Check: phi3 is not an involution" << std::endl;
            return false;
        }
709

untereiner's avatar
untereiner committed
710 711 712 713 714
		if(phi1(d3) != phi3(phi_1(d)))
		{
			std::cout << "Check: phi3 , faces are not entirely sewn" << std::endl;
			return false;
		}
715

716 717 718 719 720 721
        Dart d2 = phi2(d);
        if (phi2(d2) != d) // phi2 involution ?
		{
            std::cout << "Check: phi2 is not an involution" << std::endl;
            return false;
        }
722

723 724 725 726 727 728
        Dart d1 = phi1(d);
        if (phi_1(d1) != d) // phi1 a une image correcte ?
		{
            std::cout << "Check: unconsistent phi_1 link" << std::endl;
            return false;
        }
729

730
        if (m.isMarked(d1)) // phi1 a un seul antécédent ?
731
		{
732 733 734 735
            std::cout << "Check: dart with two phi1 predecessors" << std::endl;
            return false;
        }
        m.mark(d1);
736

737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752
        if (d1 == d)
            std::cout << "Check: (warning) face loop (one edge)" << std::endl;

        if (phi1(d1) == d)
            std::cout << "Check: (warning) face with only two edges" << std::endl;

        if (phi2(d1) == d)
            std::cout << "Check: (warning) dandling edge (phi2)" << std::endl;

        if (phi3(d1) == d)
            std::cout << "Check: (warning) dandling edge (phi3)" << std::endl;
    }

    for(Dart d = this->begin(); d != this->end(); this->next(d))
    {
        if (!m.isMarked(d)) // phi1 a au moins un antécédent ?
753
		{
754 755 756 757
            std::cout << "Check: dart with no phi1 predecessor" << std::endl;
            return false;
        }
    }
758

759
    std::cout << "Check: topology ok" << std::endl;
760

761
    return true;
762 763
}

Pierre Kraemer's avatar
Pierre Kraemer committed
764 765 766 767
/*! @name Cell Functors
 *  Apply functors to all darts of a cell
 *************************************************************************/

untereiner's avatar
untereiner committed
768
bool Map3::foreach_dart_of_vertex(Dart d, FunctorType& f, unsigned int thread)
Pierre Kraemer's avatar
Pierre Kraemer committed
769
{
untereiner's avatar
untereiner committed
770
	DartMarkerStore mv(*this, thread);	// Lock a marker
Pierre Kraemer's avatar
Pierre Kraemer committed
771 772
	bool found = false;					// Last functor return value

untereiner's avatar
untereiner committed
773 774 775
	std::vector<Dart> darts;	// Darts that are traversed
	darts.reserve(256);
	darts.push_back(d);			// Start with the dart d
Pierre Kraemer's avatar
Pierre Kraemer committed
776 777
	mv.mark(d);

778
	for(unsigned int i = 0; !found && i < darts.size(); ++i)
Pierre Kraemer's avatar
Pierre Kraemer committed
779
	{
780
		// add phi21 and phi23 successor if they are not marked yet
781
		Dart d2 = phi2(darts[i]);
untereiner's avatar
untereiner committed
782 783
		Dart d21 = phi1(d2); // turn in volume
		Dart d23 = phi3(d2); // change volume
untereiner's avatar
untereiner committed
784

untereiner's avatar
untereiner committed
785 786 787 788 789 790 791 792 793
		if(!mv.isMarked(d21))
		{
			darts.push_back(d21);
			mv.mark(d21);
		}
		if(!mv.isMarked(d23))
		{
			darts.push_back(d23);
			mv.mark(d23);
Pierre Kraemer's avatar
Pierre Kraemer committed
794 795
		}

796
		found = f(darts[i]);
Pierre Kraemer's avatar
Pierre Kraemer committed
797 798 799 800
	}
	return found;
}

Sylvain Thery's avatar
Sylvain Thery committed
801
bool Map3::foreach_dart_of_edge(Dart d, FunctorType& f, unsigned int thread)
Pierre Kraemer's avatar
Pierre Kraemer committed
802
{
untereiner's avatar
untereiner committed
803
	Dart it = d;
Pierre Kraemer's avatar
Pierre Kraemer committed
804 805
	do
	{
untereiner's avatar
untereiner committed
806
		if (Map2::foreach_dart_of_edge(it, f, thread))
Pierre Kraemer's avatar
Pierre Kraemer committed
807
			return true;
untereiner's avatar
untereiner committed
808 809
		it = alpha2(it);
	} while (it != d);
Pierre Kraemer's avatar
Pierre Kraemer committed
810 811 812
	return false;
}

untereiner's avatar
untereiner committed
813
bool Map3::foreach_dart_of_cc(Dart d, FunctorType& f, unsigned int thread)
Pierre Kraemer's avatar
Pierre Kraemer committed
814
{
Sylvain Thery's avatar
Sylvain Thery committed
815
	DartMarkerStore mv(*this,thread);	// Lock a marker
Pierre Kraemer's avatar
Pierre Kraemer committed
816 817
	bool found = false;					// Last functor return value

untereiner's avatar
untereiner committed
818 819 820
	std::vector<Dart> darts;	// Darts that are traversed
	darts.reserve(1024);
	darts.push_back(d);			// Start with the dart d
Pierre Kraemer's avatar
Pierre Kraemer committed
821 822
	mv.mark(d);

823
	for(unsigned int i = 0; !found && i < darts.size(); ++i)
Pierre Kraemer's avatar
Pierre Kraemer committed
824
	{
untereiner's avatar
untereiner committed
825
		// add all successors if they are not marked yet
826 827 828
		Dart d2 = phi1(darts[i]); // turn in face
		Dart d3 = phi2(darts[i]); // change face
		Dart d4 = phi3(darts[i]); // change volume
Pierre Kraemer's avatar
Pierre Kraemer committed
829

untereiner's avatar
untereiner committed
830 831 832 833 834
		if (!mv.isMarked(d2))
		{
			darts.push_back(d2);
			mv.mark(d2);
		}
Pierre Kraemer's avatar
Pierre Kraemer committed
835 836
		if (!mv.isMarked(d3))
		{
untereiner's avatar
untereiner committed
837 838
			darts.push_back(d2);
			mv.mark(d2);
Pierre Kraemer's avatar
Pierre Kraemer committed
839 840 841
		}
		if (!mv.isMarked(d4))
		{
untereiner's avatar
untereiner committed
842
			darts.push_back(d4);
Pierre Kraemer's avatar
Pierre Kraemer committed
843 844 845
			mv.mark(d4);
		}

846
		found = f(darts[i]);
Pierre Kraemer's avatar
Pierre Kraemer committed
847 848 849 850
	}
	return found;
}

untereiner's avatar
untereiner committed
851 852 853
/*! @name Close map after import or creation
 *  These functions must be used with care, generally only by import/creation algorithms
 *************************************************************************/
Pierre Kraemer's avatar
Pierre Kraemer committed
854

untereiner's avatar
untereiner committed
855
unsigned int Map3::closeHole(Dart d, bool forboundary)
Pierre Kraemer's avatar
Pierre Kraemer committed
856
{
untereiner's avatar
untereiner committed
857
	assert(phi3(d) == d);		// Nothing to close
858
	DartMarkerStore m(*this) ;
Pierre Kraemer's avatar
Pierre Kraemer committed
859

untereiner's avatar
untereiner committed
860 861 862
	std::vector<Dart> visitedFaces;	// Faces that are traversed
	visitedFaces.reserve(1024) ;
	visitedFaces.push_back(d);		// Start with the face of d
863 864
//	m.markOrbit(ORIENTED_FACE, d) ;
	m.markOrbit(FACE2, d) ;
Pierre Kraemer's avatar
Pierre Kraemer committed
865

untereiner's avatar
untereiner committed
866
	unsigned int count = 0 ;
Pierre Kraemer's avatar
Pierre Kraemer committed
867

untereiner's avatar
untereiner committed
868
	// For every face added to the list
869
	for(unsigned int i = 0; i < visitedFaces.size(); ++i)
Pierre Kraemer's avatar
Pierre Kraemer committed
870
	{
871 872 873
		Dart it = visitedFaces[i] ;
		Dart f = it ;

untereiner's avatar
untereiner committed
874 875 876
		unsigned int degree = faceDegree(f) ;
		Dart b = newBoundaryCycle(degree) ;
		++count ;
Pierre Kraemer's avatar
Pierre Kraemer committed
877

untereiner's avatar
untereiner committed
878 879
		Dart bit = b ;
		do
Pierre Kraemer's avatar
Pierre Kraemer committed
880
		{
untereiner's avatar
untereiner committed
881 882 883 884 885 886 887
			Dart e = alpha2(f) ;
			bool found = false ;
			do
			{
				if(phi3(e) == e)
				{
					found = true ;
888 889 890
					if(!m.isMarked(e))
					{
						visitedFaces.push_back(e) ;
891
						m.markOrbit(FACE2, e) ;
892
					}
untereiner's avatar
untereiner committed
893
				}
894
				else if(isBoundaryMarked(e))
untereiner's avatar
untereiner committed
895 896
				{
					found = true ;
897
					phi2sew(e, bit) ;
untereiner's avatar
untereiner committed
898 899 900 901 902 903 904 905
				}
				else
					e = alpha2(e) ;
			} while(!found) ;

			phi3sew(f, bit) ;
			bit = phi_1(bit) ;
			f = phi1(f);
906
		} while(f != it) ;
Pierre Kraemer's avatar
Pierre Kraemer committed
907 908
	}

untereiner's avatar
untereiner committed
909 910 911 912 913 914 915 916 917 918 919
	return count ;
}

void Map3::closeMap()
{
	// Search the map for topological holes (fix points of phi3)
	for (Dart d = begin(); d != end(); next(d))
	{
		if (phi3(d) == d)
			closeHole(d);
	}
Pierre Kraemer's avatar
Pierre Kraemer committed
920 921 922
}

} // namespace CGoGN