import2tablesSurface.hpp 34.9 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 PURVEC3E. 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 "Algo/Import/importPlyData.h"
26 27
#include "Algo/Geometry/boundingbox.h"
#include "Topology/generic/autoAttributeHandler.h"
Pierre Kraemer's avatar
Pierre Kraemer committed
28 29

#include "openctm.h"
30
#include "Algo/Import/AHEM.h"
Pierre Kraemer's avatar
Pierre Kraemer committed
31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

#include "assimp.h"
#include "aiPostProcess.h"
#include "aiScene.h"


namespace CGoGN
{

namespace Algo
{

namespace Import
{

template<typename PFP>
ImportSurfacique::ImportType MeshTablesSurface<PFP>::getFileType(const std::string& filename)
{
	if ((filename.rfind(".trianbgz")!=std::string::npos) || (filename.rfind(".TRIANBGZ")!=std::string::npos))
		return ImportSurfacique::TRIANBGZ;
Pierre Kraemer's avatar
Pierre Kraemer committed
51

Pierre Kraemer's avatar
Pierre Kraemer committed
52 53 54 55 56 57 58 59
	if ((filename.rfind(".trian")!=std::string::npos) || (filename.rfind(".TRIAN")!=std::string::npos))
		return ImportSurfacique::TRIAN;

	if ((filename.rfind(".plyptm")!=std::string::npos) || (filename.rfind(".PLYGEN")!=std::string::npos))
		return ImportSurfacique::PLYPTM;

	if ((filename.rfind(".ply")!=std::string::npos) || (filename.rfind(".PLY")!=std::string::npos))
		return ImportSurfacique::PLY;
Pierre Kraemer's avatar
Pierre Kraemer committed
60

Pierre Kraemer's avatar
Pierre Kraemer committed
61 62
	if ((filename.rfind(".off")!=std::string::npos) || (filename.rfind(".OFF")!=std::string::npos))
		return ImportSurfacique::OFF;
Pierre Kraemer's avatar
Pierre Kraemer committed
63

Pierre Kraemer's avatar
Pierre Kraemer committed
64 65
	if ((filename.rfind(".obj")!=std::string::npos) || (filename.rfind(".OBJ")!=std::string::npos))
		return ImportSurfacique::OBJ;
Pierre Kraemer's avatar
Pierre Kraemer committed
66

67
	if ((filename.rfind(".ctm")!=std::string::npos) || (filename.rfind(".CTM")!=std::string::npos))
Pierre Kraemer's avatar
Pierre Kraemer committed
68 69
		return ImportSurfacique::CTM;

70 71 72
	if ((filename.rfind(".ahem")!=std::string::npos) || (filename.rfind(".AHEM")!=std::string::npos))
		return ImportSurfacique::AHEM;

Pierre Kraemer's avatar
Pierre Kraemer committed
73 74 75 76
	return ImportSurfacique::UNKNOWNSURFACE;
}

template<typename PFP>
Pierre Kraemer's avatar
Pierre Kraemer committed
77
bool MeshTablesSurface<PFP>::importMesh(const std::string& filename, std::vector<std::string>& attrNames, ImportSurfacique::ImportType kind)
Pierre Kraemer's avatar
Pierre Kraemer committed
78 79 80 81
{
	if (kind == ImportSurfacique::UNKNOWNSURFACE)
		kind = getFileType(filename);

Pierre Kraemer's avatar
Pierre Kraemer committed
82
	attrNames.clear() ;
Pierre Kraemer's avatar
Pierre Kraemer committed
83 84 85 86

	switch (kind)
	{
	case ImportSurfacique::TRIAN:
87
		CGoGNout << "TYPE: TRIAN" << CGoGNendl;
Pierre Kraemer's avatar
Pierre Kraemer committed
88
		return importTrian(filename, attrNames);
Pierre Kraemer's avatar
Pierre Kraemer committed
89 90
		break;
	case ImportSurfacique::TRIANBGZ:
91
		CGoGNout << "TYPE: TRIANBGZ" << CGoGNendl;
Pierre Kraemer's avatar
Pierre Kraemer committed
92
		return importTrianBinGz(filename, attrNames);
Pierre Kraemer's avatar
Pierre Kraemer committed
93 94
		break;
	case ImportSurfacique::CTM:
95
		CGoGNout << "TYPE: CTM" << CGoGNendl;
Pierre Kraemer's avatar
Pierre Kraemer committed
96
		return importCTM(filename, attrNames);
Pierre Kraemer's avatar
Pierre Kraemer committed
97 98
		break;
	case ImportSurfacique::OFF:
99
		CGoGNout << "TYPE: OFF" << CGoGNendl;
Pierre Kraemer's avatar
Pierre Kraemer committed
100
		return importOff(filename, attrNames);
Pierre Kraemer's avatar
Pierre Kraemer committed
101 102
		break;
	case ImportSurfacique::PLY:
103
		CGoGNout << "TYPE: PLY" << CGoGNendl;
Pierre Kraemer's avatar
Pierre Kraemer committed
104
		return importPly(filename, attrNames);
Pierre Kraemer's avatar
Pierre Kraemer committed
105
		break;
Pierre Kraemer's avatar
Pierre Kraemer committed
106
	case ImportSurfacique::PLYPTM:
107
		CGoGNout << "TYPE: PLYPTM" << CGoGNendl;
108 109 110 111
		return importPlyPTM(filename, attrNames);
		break;
	case ImportSurfacique::PLYPTMgeneric:
		CGoGNout << "TYPE: PLYPTMgeneric" << CGoGNendl;
112
		return importPlyPTMgeneric(filename, attrNames);
Pierre Kraemer's avatar
Pierre Kraemer committed
113
		break;
Pierre Kraemer's avatar
Pierre Kraemer committed
114
	case ImportSurfacique::OBJ:
115
		CGoGNout << "TYPE: OBJ" << CGoGNendl;
Pierre Kraemer's avatar
Pierre Kraemer committed
116
		return importObj(filename, attrNames);
Pierre Kraemer's avatar
Pierre Kraemer committed
117
		break;
118 119 120 121
	case ImportSurfacique::AHEM:
		CGoGNout << "TYPE: AHEM" << CGoGNendl;
		return importAHEM(filename, attrNames);
		break;
Pierre Kraemer's avatar
Pierre Kraemer committed
122
	default:
123
		CGoGNout << "TYPE: ASSIMP" << CGoGNendl;
Pierre Kraemer's avatar
Pierre Kraemer committed
124
		return importASSIMP(filename, attrNames);
Pierre Kraemer's avatar
Pierre Kraemer committed
125 126 127 128 129 130
		break;
	}
	return false;
}

template<typename PFP>
Pierre Kraemer's avatar
Pierre Kraemer committed
131
bool MeshTablesSurface<PFP>::importTrian(const std::string& filename, std::vector<std::string>& attrNames)
Pierre Kraemer's avatar
Pierre Kraemer committed
132
{
133
	AttributeHandler<typename PFP::VEC3> positions =  m_map.template getAttribute<typename PFP::VEC3>(VERTEX, "position") ;
134 135

	if (!positions.isValid())
136
		positions = m_map.template addAttribute<typename PFP::VEC3>(VERTEX, "position") ;
137

Pierre Kraemer's avatar
Pierre Kraemer committed
138 139
	attrNames.push_back(positions.name()) ;

140
	AttributeContainer& container = m_map.getAttributeContainer(VERTEX) ;
141

Pierre Kraemer's avatar
Pierre Kraemer committed
142 143 144 145
	// open file
	std::ifstream fp(filename.c_str(), std::ios::in);
	if (!fp.good())
	{
146
		CGoGNerr << "Unable to open file " << filename << CGoGNendl;
Pierre Kraemer's avatar
Pierre Kraemer committed
147 148 149
		return false;
	}

Pierre Kraemer's avatar
Pierre Kraemer committed
150
	// read nb of points
Pierre Kraemer's avatar
Pierre Kraemer committed
151 152
	fp >> m_nbVertices;

Pierre Kraemer's avatar
Pierre Kraemer committed
153
	// read points
Pierre Kraemer's avatar
Pierre Kraemer committed
154 155 156
	std::vector<unsigned int> verticesID;
	verticesID.reserve(m_nbVertices);

Pierre Kraemer's avatar
Pierre Kraemer committed
157
	for (unsigned int i = 0; i < m_nbVertices; ++i)
Pierre Kraemer's avatar
Pierre Kraemer committed
158 159 160 161 162
	{
		VEC3 pos;
		fp >> pos[0];
		fp >> pos[1];
		fp >> pos[2];
Pierre Kraemer's avatar
Pierre Kraemer committed
163 164
		unsigned int id = container.insertLine();
		positions[id] = pos;
Pierre Kraemer's avatar
Pierre Kraemer committed
165 166 167 168 169 170 171 172
		verticesID.push_back(id);
	}

	// read nb of faces
	fp >> m_nbFaces;
	m_nbEdges.reserve(m_nbFaces);
	m_emb.reserve(3*m_nbFaces);

Pierre Kraemer's avatar
Pierre Kraemer committed
173 174
	// read indices of faces
	for (unsigned int i = 0; i < m_nbFaces; ++i)
Pierre Kraemer's avatar
Pierre Kraemer committed
175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197
	{
		m_nbEdges.push_back(3);
		// read the three vertices of triangle
		int pt;
		fp >> pt;
		m_emb.push_back(verticesID[pt]);
		fp >> pt;
		m_emb.push_back(verticesID[pt]);
		fp >> pt;
		m_emb.push_back(verticesID[pt]);

		// neighbour not always good in files !!
		int neigh;
		fp >> neigh;
		fp >> neigh;
		fp >> neigh;
	}

	fp.close();
	return true;
}

template<typename PFP>
Pierre Kraemer's avatar
Pierre Kraemer committed
198
bool MeshTablesSurface<PFP>::importTrianBinGz(const std::string& filename, std::vector<std::string>& attrNames)
Pierre Kraemer's avatar
Pierre Kraemer committed
199
{
200
	AttributeHandler<typename PFP::VEC3> positions =  m_map.template getAttribute<typename PFP::VEC3>(VERTEX, "position") ;
201 202

	if (!positions.isValid())
203
		positions = m_map.template addAttribute<typename PFP::VEC3>(VERTEX, "position") ;
204

Pierre Kraemer's avatar
Pierre Kraemer committed
205 206
	attrNames.push_back(positions.name()) ;

207
	AttributeContainer& container = m_map.getAttributeContainer(VERTEX) ;
208

Pierre Kraemer's avatar
Pierre Kraemer committed
209 210 211 212 213
	// open file
	igzstream fs(filename.c_str(), std::ios::in|std::ios::binary);

	if (!fs.good())
	{
214
		CGoGNerr << "Unable to open file " << filename << CGoGNendl;
Pierre Kraemer's avatar
Pierre Kraemer committed
215 216
		return false;
	}
Pierre Kraemer's avatar
Pierre Kraemer committed
217

Pierre Kraemer's avatar
Pierre Kraemer committed
218 219 220 221 222
	// read nb of points
	fs.read(reinterpret_cast<char*>(&m_nbVertices), sizeof(int));

	// read points
	std::vector<unsigned int> verticesID;
Pierre Kraemer's avatar
Pierre Kraemer committed
223
	{	// juste pour limiter la portee des variables
Pierre Kraemer's avatar
Pierre Kraemer committed
224 225
		verticesID.reserve(m_nbVertices);
		float* buffer = new float[m_nbVertices*3];
Pierre Kraemer's avatar
Pierre Kraemer committed
226
		fs.read(reinterpret_cast<char*>(buffer), 3*m_nbVertices*sizeof(float));
Pierre Kraemer's avatar
Pierre Kraemer committed
227
		float *ptr = buffer;
Pierre Kraemer's avatar
Pierre Kraemer committed
228
		for (unsigned int i = 0; i < m_nbVertices; ++i)
Pierre Kraemer's avatar
Pierre Kraemer committed
229 230 231 232 233 234
		{
			VEC3 pos;
			pos[0]= *ptr++;
			pos[1]= *ptr++;
			pos[2]= *ptr++;

Pierre Kraemer's avatar
Pierre Kraemer committed
235 236
			unsigned int id = container.insertLine();
			positions[id] = pos;
Pierre Kraemer's avatar
Pierre Kraemer committed
237 238 239 240 241 242 243 244 245 246 247 248

			verticesID.push_back(id);
		}
		delete[] buffer;
	}

	// read nb of faces
	fs.read(reinterpret_cast<char*>(&m_nbFaces), sizeof(int));
	m_nbEdges.reserve(m_nbFaces);
	m_emb.reserve(3*m_nbFaces);

	// read indices of faces
Pierre Kraemer's avatar
Pierre Kraemer committed
249
	{	// juste pour limiter la portee des variables
Pierre Kraemer's avatar
Pierre Kraemer committed
250 251 252 253
		int* buffer = new int[m_nbFaces*6];
		fs.read(reinterpret_cast<char*>(buffer),6*m_nbFaces*sizeof(float));
		int *ptr = buffer;

Pierre Kraemer's avatar
Pierre Kraemer committed
254
		for (unsigned int i = 0; i < m_nbFaces; i++)
Pierre Kraemer's avatar
Pierre Kraemer committed
255 256 257 258 259 260 261 262 263 264 265 266 267
		{
			m_nbEdges.push_back(3);
			m_emb.push_back(verticesID[*ptr++]);
			m_emb.push_back(verticesID[*ptr++]);
			m_emb.push_back(verticesID[*ptr++]);
		}
	}
	
	fs.close();
	return true;
}

template<typename PFP>
Pierre Kraemer's avatar
Pierre Kraemer committed
268
bool MeshTablesSurface<PFP>::importOff(const std::string& filename, std::vector<std::string>& attrNames)
Pierre Kraemer's avatar
Pierre Kraemer committed
269
{
270
	AttributeHandler<typename PFP::VEC3> positions =  m_map.template getAttribute<typename PFP::VEC3>(VERTEX, "position") ;
271 272

	if (!positions.isValid())
273
		positions = m_map.template addAttribute<typename PFP::VEC3>(VERTEX, "position") ;
274

Pierre Kraemer's avatar
Pierre Kraemer committed
275 276
	attrNames.push_back(positions.name()) ;

277
	AttributeContainer& container = m_map.getAttributeContainer(VERTEX) ;
278

Pierre Kraemer's avatar
Pierre Kraemer committed
279 280 281 282
	// open file
	std::ifstream fp(filename.c_str(), std::ios::in);
	if (!fp.good())
	{
283
		CGoGNerr << "Unable to open file " << filename << CGoGNendl;
Pierre Kraemer's avatar
Pierre Kraemer committed
284 285 286 287 288 289 290 291 292
		return false;
	}

    std::string ligne;

    // lecture de OFF
    std::getline (fp, ligne);
    if (ligne.rfind("OFF") == std::string::npos)
    {
293 294
		CGoGNerr << "Problem reading off file: not an off file" << CGoGNendl;
		CGoGNerr << ligne << CGoGNendl;
Pierre Kraemer's avatar
Pierre Kraemer committed
295
		return false;
Pierre Kraemer's avatar
Pierre Kraemer committed
296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314
    }

    // lecture des nombres de sommets/faces/aretes
	int nbe;
    {
    	do
    	{
    		std::getline (fp, ligne);
    	} while (ligne.size()==0);

	    std::stringstream oss(ligne);
		oss >> m_nbVertices;
		oss >> m_nbFaces;
		oss >> nbe;
    }

	//lecture sommets
	std::vector<unsigned int> verticesID;
	verticesID.reserve(m_nbVertices);
Pierre Kraemer's avatar
Pierre Kraemer committed
315
	for (unsigned int i = 0; i < m_nbVertices;++i)
Pierre Kraemer's avatar
Pierre Kraemer committed
316 317 318 319
	{
    	do
    	{
    		std::getline (fp, ligne);
Pierre Kraemer's avatar
Pierre Kraemer committed
320
    	} while (ligne.size() == 0);
Pierre Kraemer's avatar
Pierre Kraemer committed
321 322 323 324 325 326 327 328 329 330

		std::stringstream oss(ligne);

		float x,y,z;
		oss >> x;
		oss >> y;
		oss >> z;
		// on peut ajouter ici la lecture de couleur si elle existe
		VEC3 pos(x,y,z);

Pierre Kraemer's avatar
Pierre Kraemer committed
331 332
		unsigned int id = container.insertLine();
		positions[id] = pos;
Pierre Kraemer's avatar
Pierre Kraemer committed
333 334 335 336 337 338 339 340 341

		verticesID.push_back(id);
	}

	// lecture faces
	// normalement nbVertices*8 devrait suffire largement
	m_nbEdges.reserve(m_nbFaces);
	m_emb.reserve(m_nbVertices*8);

Pierre Kraemer's avatar
Pierre Kraemer committed
342
	for (unsigned int i = 0; i < m_nbFaces; ++i)
Pierre Kraemer's avatar
Pierre Kraemer committed
343 344 345 346
	{
    	do
    	{
    		std::getline (fp, ligne);
Pierre Kraemer's avatar
Pierre Kraemer committed
347
    	} while (ligne.size() == 0);
Pierre Kraemer's avatar
Pierre Kraemer committed
348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366

		std::stringstream oss(ligne);
		int n;
		oss >> n;
		m_nbEdges.push_back(n);
		for (int j=0;j<n; ++j)
		{
			int index; // index du plongement
			oss >> index;
			m_emb.push_back(verticesID[index]);
		}
		// on peut ajouter ici la lecture de couleur si elle existe
	}

	fp.close();
	return true;
}

template <typename PFP>
Pierre Kraemer's avatar
Pierre Kraemer committed
367
bool MeshTablesSurface<PFP>::importObj(const std::string& filename, std::vector<std::string>& attrNames)
Pierre Kraemer's avatar
Pierre Kraemer committed
368
{
369
	AttributeHandler<typename PFP::VEC3> positions =  m_map.template getAttribute<typename PFP::VEC3>(VERTEX, "position") ;
370 371

	if (!positions.isValid())
372
		positions = m_map.template addAttribute<typename PFP::VEC3>(VERTEX, "position") ;
373

Pierre Kraemer's avatar
Pierre Kraemer committed
374 375
	attrNames.push_back(positions.name()) ;

376
	AttributeContainer& container = m_map.getAttributeContainer(VERTEX) ;
377

Pierre Kraemer's avatar
Pierre Kraemer committed
378 379 380 381
	// open file
	std::ifstream fp(filename.c_str(), std::ios::binary);
	if (!fp.good())
	{
382
		CGoGNerr << "Unable to open file " << filename << CGoGNendl;
Pierre Kraemer's avatar
Pierre Kraemer committed
383 384 385
		return false;
	}

Pierre Kraemer's avatar
Pierre Kraemer committed
386
//	fp.seekg(0, std::ios::end);
Pierre Kraemer's avatar
Pierre Kraemer committed
387
//	int ab = fp.tellg();
Pierre Kraemer's avatar
Pierre Kraemer committed
388
//	fp.seekg(0, std::ios::beg);
Pierre Kraemer's avatar
Pierre Kraemer committed
389 390 391 392 393 394 395 396 397 398 399 400 401 402 403
//	int ac = fp.tellg();

    std::string ligne;
    std::string tag;

    do
    {
    	fp >> tag;
    	std::getline (fp, ligne);
    }while (tag != std::string("v"));

    // lecture des sommets
	std::vector<unsigned int> verticesID;
	verticesID.reserve(102400); // on tape large (400Ko wahouuuuu !!)

Pierre Kraemer's avatar
Pierre Kraemer committed
404
	unsigned int i = 0;
Pierre Kraemer's avatar
Pierre Kraemer committed
405 406 407 408 409 410 411 412 413 414 415 416 417
    do
    {
		if (tag == std::string("v"))
		{
			std::stringstream oss(ligne);
		
			float x,y,z;
			oss >> x;
			oss >> y;
			oss >> z;

			VEC3 pos(x,y,z);

Pierre Kraemer's avatar
Pierre Kraemer committed
418 419
			unsigned int id = container.insertLine();
			positions[id] = pos;
Pierre Kraemer's avatar
Pierre Kraemer committed
420 421 422 423 424 425

			verticesID.push_back(id);
			i++;
		}

		fp >> tag;
Pierre Kraemer's avatar
Pierre Kraemer committed
426
    	std::getline(fp, ligne);
Pierre Kraemer's avatar
Pierre Kraemer committed
427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445
    } while (!fp.eof());

	m_nbVertices = verticesID.size();

	// close/clear/open only way to go back to beginning of file
	fp.close();
	fp.clear();
	fp.open(filename.c_str());

	do
    {
    	fp >> tag;
    	std::getline (fp, ligne);
    } while (tag != std::string("f"));

	m_nbEdges.reserve(verticesID.size()*2);
	m_emb.reserve(verticesID.size()*8);

	std::vector<int> table;
446
	table.reserve(64); // NBV cotes pour une face devrait suffire
Pierre Kraemer's avatar
Pierre Kraemer committed
447 448 449
	m_nbFaces = 0;
    do
    {
Pierre Kraemer's avatar
Pierre Kraemer committed
450
    	if (tag == std::string("f")) // lecture d'une face
Pierre Kraemer's avatar
Pierre Kraemer committed
451 452 453 454 455 456 457 458
    	{
    		std::stringstream oss(ligne);
     		table.clear();
    		while (!oss.eof())  // lecture de tous les indices
    		{
    			std::string str;
    			oss >> str;

Pierre Kraemer's avatar
Pierre Kraemer committed
459
    			unsigned int ind = 0;
Sylvain Thery's avatar
Sylvain Thery committed
460

CGoGN GIT Supervisor's avatar
CGoGN GIT Supervisor committed
461
    			while ( (ind<str.length()) &&  (str[ind]!='/'))
Pierre Kraemer's avatar
Pierre Kraemer committed
462 463
    				ind++;

Pierre Kraemer's avatar
Pierre Kraemer committed
464
				if (ind > 0)
Pierre Kraemer's avatar
Pierre Kraemer committed
465 466
				{
    				long index;
Pierre Kraemer's avatar
Pierre Kraemer committed
467
					std::stringstream iss(str.substr(0, ind));
Pierre Kraemer's avatar
Pierre Kraemer committed
468 469 470 471 472
					iss >> index;
		   			table.push_back(index);
				}
    		}

Pierre Kraemer's avatar
Pierre Kraemer committed
473
    		unsigned int n = table.size();
Pierre Kraemer's avatar
Pierre Kraemer committed
474
			m_nbEdges.push_back(short(n));
Pierre Kraemer's avatar
Pierre Kraemer committed
475
    		for (unsigned int j = 0; j < n; ++j)
Pierre Kraemer's avatar
Pierre Kraemer committed
476
    		{
Pierre Kraemer's avatar
Pierre Kraemer committed
477
    			int index = table[j] - 1; // les index commencent a 1 (boufonnerie d'obj ;)
Pierre Kraemer's avatar
Pierre Kraemer committed
478 479 480 481 482
				m_emb.push_back(verticesID[index]);
    		}
			m_nbFaces++;
    	}
		fp >> tag;
Pierre Kraemer's avatar
Pierre Kraemer committed
483
    	std::getline(fp, ligne);
Pierre Kraemer's avatar
Pierre Kraemer committed
484 485 486 487 488 489 490
     } while (!fp.eof());

	fp.close ();
	return true;
}

template<typename PFP>
Pierre Kraemer's avatar
Pierre Kraemer committed
491
bool MeshTablesSurface<PFP>::importPly(const std::string& filename, std::vector<std::string>& attrNames)
Pierre Kraemer's avatar
Pierre Kraemer committed
492
{
493
	AttributeHandler<typename PFP::VEC3> positions =  m_map.template getAttribute<typename PFP::VEC3>(VERTEX, "position") ;
494 495

	if (!positions.isValid())
496
		positions = m_map.template addAttribute<typename PFP::VEC3>(VERTEX, "position") ;
497

Pierre Kraemer's avatar
Pierre Kraemer committed
498 499
	attrNames.push_back(positions.name()) ;

500
	AttributeContainer& container = m_map.getAttributeContainer(VERTEX) ;
501

Pierre Kraemer's avatar
Pierre Kraemer committed
502 503 504 505
	PlyImportData pid;

	if (! pid.read_file(filename) )
	{
506
		CGoGNerr << "Unable to open file " << filename << CGoGNendl;
Pierre Kraemer's avatar
Pierre Kraemer committed
507 508 509 510 511 512 513 514 515 516
		return false;
	}
	
    // lecture des nombres de sommets/aretes/faces
	m_nbVertices = pid.nbVertices();
	m_nbFaces = pid.nbFaces();
 
	//lecture sommets
	std::vector<unsigned int> verticesID;
	verticesID.reserve(m_nbVertices);
Pierre Kraemer's avatar
Pierre Kraemer committed
517
	for (unsigned int i = 0; i < m_nbVertices; ++i)
Pierre Kraemer's avatar
Pierre Kraemer committed
518 519
	{
		VEC3 pos;
Pierre Kraemer's avatar
Pierre Kraemer committed
520
		pid.vertexPosition(i, pos);
Pierre Kraemer's avatar
Pierre Kraemer committed
521

Pierre Kraemer's avatar
Pierre Kraemer committed
522 523
		unsigned int id = container.insertLine();
		positions[id] = pos;
Pierre Kraemer's avatar
Pierre Kraemer committed
524 525 526 527 528 529 530

		verticesID.push_back(id);
	}

	m_nbEdges.reserve(m_nbFaces);
	m_emb.reserve(m_nbVertices*8);

531
	for (unsigned int i = 0 ; i < m_nbFaces ; ++i)
Pierre Kraemer's avatar
Pierre Kraemer committed
532
	{
Pierre Kraemer's avatar
Pierre Kraemer committed
533
		unsigned int n = pid.getFaceValence(i);
Pierre Kraemer's avatar
Pierre Kraemer committed
534 535
		m_nbEdges.push_back(n);
		int* indices = pid.getFaceIndices(i);
Pierre Kraemer's avatar
Pierre Kraemer committed
536
		for (unsigned int j = 0; j < n; ++j)
Pierre Kraemer's avatar
Pierre Kraemer committed
537
		{
Pierre Kraemer's avatar
Pierre Kraemer committed
538
			m_emb.push_back(verticesID[indices[j]]);
Pierre Kraemer's avatar
Pierre Kraemer committed
539 540 541 542 543 544
		}
	}

	return true;
}

545 546
/**
 * Import plyPTM (K Vanhoey generic format).
547 548 549 550
 * It can handle bivariable polynomials of any degree and returns the appropriate attrNames
 * @param filename the file to import;
 * @param attrNames reference that will be filled with the attribute names
 * the number of attrNames returned depends on the degree of the polynomials :
551 552
 *  - 1 attrName for geometric position (VEC3) : name = "position" ;
 *  - 3 attrNames for local frame (3xVEC3) : names are "Frame_T" (Tangent), "Frame_B" (Binormal) and "Frame_N" (Normal) ;
553
 *  - N attrNames for the function coefficients (NxVEC3) : N RGB coefficients being successively the constants, the linears (v then u), the quadratics, etc. :  : a0 + a1*v + a2*u + a3*u*v + a4*v^2 + a5*u^2.
554
 *  Their names are : "colorPTM_a<i>" (where <i> is a number from 0 to N-1).
555 556 557 558 559 560
 * N = 1 for constant polynomial,
 * N = 3 for linear polynomial,
 * N = 6 for quadratic polynomial,
 * N = 10 for cubic degree polynomial,
 * N = 15 for 4th degree polynomial,
 * ...
561
 *  - K remaining attrNames named "remainderNo<k>" where k is an integer from 0 to K-1.
562 563
 * @return bool : success.
 */
Pierre Kraemer's avatar
Pierre Kraemer committed
564
template <typename PFP>
565
bool MeshTablesSurface<PFP>::importPlyPTMgeneric(const std::string& filename, std::vector<std::string>& attrNames)
566
{
567 568
	// Open file
	std::ifstream fp(filename.c_str(), std::ios::in) ;
569 570
	if (!fp.good())
	{
571 572
		CGoGNerr << "Unable to open file " << filename << CGoGNendl ;
		return false ;
573 574
	}

575 576
	// Read quantities : #vertices, #faces, #properties, degree of polynomials
    std::string tag ;
577

578 579
    fp >> tag;
	if (tag != std::string("ply")) // verify file type
580
	{
581 582
		CGoGNerr << filename << " is not a ply file !" <<  CGoGNout ;
		return false ;
583 584
	}

585
	do // go to #vertices
586
	{
587 588 589 590
		fp >> tag ;
	} while (tag != std::string("vertex")) ;
	unsigned int nbVertices ;
	fp >> nbVertices ; // Read #vertices
591

592 593 594 595 596 597
	bool position = false ;
	bool tangent = false ;
	bool binormal = false ;
	bool normal = false ;
	unsigned int nbProps = 0 ;			// # properties
	unsigned int nbCoefsPerPol = 0 ; 	// # coefficients per polynomial
598
	do // go to #faces and count #properties
599
	{
600
		fp >> tag ;
601
		if (tag == std::string("property"))
602
			++nbProps ;
603 604 605 606 607 608 609 610 611 612 613

		if (tag == std::string("x") || tag == std::string("y") || tag == std::string("z"))
			position = true ;
		else if (tag == std::string("tx") || tag == std::string("ty") || tag == std::string("tz"))
			tangent = true ;
		else if (tag == std::string("bx") || tag == std::string("by") || tag == std::string("bz"))
			binormal = true ;
		else if (tag == std::string("nx") || tag == std::string("ny") || tag == std::string("nz"))
			normal = true ;
		else if (tag.substr(2,2) == std::string("_a"))
			++nbCoefsPerPol ;
614
	} while (tag != std::string("face")) ;
615 616 617 618
	unsigned int nbRemainders = nbProps ;		// # remaining properties
	nbRemainders -= nbCoefsPerPol + 3*(position==true) + 3*(tangent==true) + 3*(binormal==true) + 3*(normal==true) ;
	nbCoefsPerPol /= 3 ;

619
	fp >> m_nbFaces ; // Read #vertices
620

621 622 623 624
	do // go to end of header
	{
		fp >> tag ;
	} while (tag != std::string("end_header")) ;
625

626 627 628 629 630
	// Define containers
	AttributeHandler<typename PFP::VEC3> positions = m_map.template getAttribute<typename PFP::VEC3>(VERTEX, "position") ;
	if (!positions.isValid())
		positions = m_map.template addAttribute<typename PFP::VEC3>(VERTEX, "position") ;
	attrNames.push_back(positions.name()) ;
631

632 633 634 635 636 637 638
	AttributeHandler<typename PFP::VEC3> *frame = new AttributeHandler<typename PFP::VEC3>[3] ;
	frame[0] = m_map.template addAttribute<typename PFP::VEC3>(VERTEX, "frame_T") ; // Tangent
	frame[1] = m_map.template addAttribute<typename PFP::VEC3>(VERTEX, "frame_B") ; // Bitangent
	frame[2] = m_map.template addAttribute<typename PFP::VEC3>(VERTEX, "frame_N") ; // Normal
	attrNames.push_back(frame[0].name()) ;
	attrNames.push_back(frame[1].name()) ;
	attrNames.push_back(frame[2].name()) ;
639

640 641
	AttributeHandler<typename PFP::VEC3> *colorPTM = new AttributeHandler<typename PFP::VEC3>[nbCoefsPerPol] ;
	for (unsigned int i = 0 ; i < nbCoefsPerPol ; ++i)
642
	{
643 644 645 646 647
		std::stringstream name ;
		name << "colorPTM_a" << i ;
		colorPTM[i] = m_map.template addAttribute<typename PFP::VEC3>(VERTEX, name.str()) ;
		attrNames.push_back(colorPTM[i].name()) ;
	}
648

649 650 651 652 653 654 655 656 657
	AttributeHandler<typename PFP::REAL> *remainders = new AttributeHandler<typename PFP::REAL>[nbRemainders] ;
	for (unsigned int i = 0 ; i < nbRemainders ; ++i)
	{
		std::stringstream name ;
		name << "remainderNo" << i ;
		remainders[i] = m_map.template addAttribute<typename PFP::REAL>(VERTEX, name.str()) ;
		attrNames.push_back(remainders[i].name()) ;
	}

658 659 660
	// Read vertices
	std::vector<unsigned int> verticesID ;
	verticesID.reserve(nbVertices) ;
661

662 663 664
	float* properties = new float[nbProps] ;
	AttributeContainer& container = m_map.getAttributeContainer(VERTEX) ;
	for (unsigned int i = 0 ; i < nbVertices ; ++i) // Read and store properties for current vertex
665
	{
666 667
		unsigned int id = container.insertLine() ;
		verticesID.push_back(id) ;
668

669 670
		for (unsigned int j = 0 ; j < nbProps ; ++j) // get all properties
			fp >> properties[j] ;
671

672 673
		positions[id] = VEC3(properties[0],properties[1],properties[2]) ; // position
		for (unsigned int k = 0 ; k < 3 ; ++k) // frame
674 675
			for (unsigned int l = 0 ; l < 3 ; ++l)
				frame[k][id][l] = properties[3+(3*k+l)] ;
676 677 678
		for (unsigned int k = 0 ; k < 3 ; ++k) // coefficients
			for (unsigned int l = 0 ; l < nbCoefsPerPol ; ++l)
				colorPTM[l][id][k] = properties[12+(nbCoefsPerPol*k+l)] ;
679 680 681
		unsigned int cur = 12+3*nbCoefsPerPol ;
		for (unsigned int k = 0 ; k < nbRemainders ; ++k) // remaining data
			remainders[k][id] = properties[cur + k] ;
682
	}
683 684
	m_nbVertices = verticesID.size() ;
	delete[] properties ;
685

686 687 688 689
	// Read faces index
	m_nbEdges.reserve(m_nbFaces) ;
	m_emb.reserve(3*m_nbFaces) ;
	for (unsigned int i = 0 ; i < m_nbFaces ; ++i)
690
	{
691 692 693 694
		// read the indices of vertices for current face
		int nbEdgesForFace ;
		fp >> nbEdgesForFace ;
		m_nbEdges.push_back(nbEdgesForFace);
695

696 697
		int vertexID ;
		for (int j=0 ; j < nbEdgesForFace ; ++j)
698
		{
699 700
			fp >> vertexID ;
			m_emb.push_back(verticesID[vertexID]);
701 702 703
		}
	}

704 705 706 707
	// Close file
	fp.close() ;

	return true ;
708 709
}

710 711 712 713
/**
 * Import plyPTM (F Larue format).
 * It handles only 2nd degree polynomials
 * @param filename : the file to import;
714 715 716
 * @param attrNames : reference that will be filled with the attribute names ;
 *  - 1 attrName for geometric position (VEC3)
 *  - 3 attrNames for local frame (3xVEC3) : Tangent, Bitangent and Normal vector
717 718
 *  - 6 attrNames for the function coefficients (6xVEC3) : 6 RGB coefficients being successively the quadratic members, the linears and the constants (u then v) : a*u^2 + b*v^2 + c*uv + d*u + e*v +f.
  * @return bool : success.
719 720
 */
template <typename PFP>
721
bool MeshTablesSurface<PFP>::importPlyPTM(const std::string& filename, std::vector<std::string>& attrNames)
Pierre Kraemer's avatar
Pierre Kraemer committed
722
{
723
	AttributeHandler<typename PFP::VEC3> positions =  m_map.template getAttribute<typename PFP::VEC3>(VERTEX, "position") ;
724 725

	if (!positions.isValid())
726
		positions = m_map.template addAttribute<typename PFP::VEC3>(VERTEX, "position") ;
727

Pierre Kraemer's avatar
Pierre Kraemer committed
728
	attrNames.push_back(positions.name()) ;
729 730

	AttributeHandler<typename PFP::VEC3> frame[3] ;
731 732 733
	frame[0] = m_map.template addAttribute<typename PFP::VEC3>(VERTEX, "frame_T") ; // Tangent
	frame[1] = m_map.template addAttribute<typename PFP::VEC3>(VERTEX, "frame_B") ; // Bitangent
	frame[2] = m_map.template addAttribute<typename PFP::VEC3>(VERTEX, "frame_N") ; // Normal
734 735 736 737
	for (unsigned int i = 0 ; i < 3 ; ++i)
		attrNames.push_back(frame[i].name()) ;

	AttributeHandler<typename PFP::VEC3> colorPTM[6] ;
738 739 740 741 742 743
	colorPTM[0] = m_map.template addAttribute<typename PFP::VEC3>(VERTEX, "colorPTM_a") ;
	colorPTM[1] = m_map.template addAttribute<typename PFP::VEC3>(VERTEX, "colorPTM_b") ;
	colorPTM[2] = m_map.template addAttribute<typename PFP::VEC3>(VERTEX, "colorPTM_c") ;
	colorPTM[3] = m_map.template addAttribute<typename PFP::VEC3>(VERTEX, "colorPTM_d") ;
	colorPTM[4] = m_map.template addAttribute<typename PFP::VEC3>(VERTEX, "colorPTM_e") ;
	colorPTM[5] = m_map.template addAttribute<typename PFP::VEC3>(VERTEX, "colorPTM_f") ;
744 745 746

	for (unsigned int i = 0 ; i < 6 ; ++i)
		attrNames.push_back(colorPTM[i].name()) ;
Pierre Kraemer's avatar
Pierre Kraemer committed
747

748
	AttributeContainer& container = m_map.getAttributeContainer(VERTEX) ;
749

Pierre Kraemer's avatar
Pierre Kraemer committed
750 751 752
	std::ifstream fp(filename.c_str(), std::ios::binary);
	if (!fp.good())
	{
753
		CGoGNerr << "Unable to open file " << filename<< CGoGNendl;
Pierre Kraemer's avatar
Pierre Kraemer committed
754 755 756 757 758 759 760 761 762
		return false;
	}

    std::string ligne;
    std::string tag;

	fp >> tag;
	if (tag != std::string("ply"))
	{
763
		CGoGNerr <<filename<< " is not a ply file !" <<  CGoGNendl;
Pierre Kraemer's avatar
Pierre Kraemer committed
764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815
		return false;
	}

	// va au nombre de sommets
	do
	{
		fp >> tag;
	} while (tag != std::string("vertex"));

	unsigned int nbp;
	fp >> nbp;
	// read points
	std::vector<unsigned int> verticesID;
	verticesID.reserve(nbp);

	// va au nombre de faces en comptant le nombre de "property"
	unsigned int nb_props = 0;
	do
	{
		fp >> tag;
		if (tag == std::string("property"))
			nb_props++;
	} while (tag != std::string("face"));

	fp >> m_nbFaces;
 	m_nbEdges.reserve(m_nbFaces);
	m_emb.reserve(3*m_nbFaces);

	// lecture des sommets

	// saute à la fin du header
	do
	{
		fp >> tag;
	} while (tag != std::string("end_header"));

	float* properties = new float[nb_props];

	for (unsigned int i = 0; i < nbp; ++i)
	{
		unsigned int id = container.insertLine();
		verticesID.push_back(id);

		for (unsigned int j = 0; j < nb_props; ++j)
		{
			fp >> properties[j];
		}

		positions[id] = VEC3(properties[0],properties[1],properties[2]);

		for (unsigned int k = 0 ; k < 3 ; ++k)
			for (unsigned int l = 0 ; l < 3 ; ++l)
816
				frame[k][id][l] = properties[3+(3*k+l)] ;
Pierre Kraemer's avatar
Pierre Kraemer committed
817 818 819

		for (unsigned int k = 0 ; k < 3 ; ++k)
			for (unsigned int l = 0 ; l < 6 ; ++l)
820
				colorPTM[l][id][k] = properties[12+(6*k+l)];
Pierre Kraemer's avatar
Pierre Kraemer committed
821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843
	}

	m_nbVertices = verticesID.size();
	delete[] properties;

// read indices of faces
	for (unsigned int i = 0; i < m_nbFaces; i++)
	{
		// read the indices vertices of face
		int nbe;
		fp >> nbe;
		m_nbEdges.push_back(nbe);

		int pt;
		for (int j=0; j<nbe; ++j)
		{
			fp >> pt;
			m_emb.push_back(verticesID[pt]);
		}
	}

	fp.close();
	return true;
844
}
Pierre Kraemer's avatar
Pierre Kraemer committed
845 846

template <typename PFP>
Pierre Kraemer's avatar
Pierre Kraemer committed
847
bool MeshTablesSurface<PFP>::importCTM(const std::string& filename, std::vector<std::string>& attrNames)
Pierre Kraemer's avatar
Pierre Kraemer committed
848
{
849
	AttributeHandler<typename PFP::VEC3> positions =  m_map.template getAttribute<typename PFP::VEC3>(VERTEX, "position") ;
850 851

	if (!positions.isValid())
852
		positions = m_map.template addAttribute<typename PFP::VEC3>(VERTEX, "position") ;
853

Pierre Kraemer's avatar
Pierre Kraemer committed
854 855
	attrNames.push_back(positions.name()) ;

856
	AttributeContainer& container = m_map.getAttributeContainer(VERTEX) ;
857

Pierre Kraemer's avatar
Pierre Kraemer committed
858 859 860 861 862 863 864
	// Load the file using the OpenCTM API
	CTMimporter ctm;
	// Load the file
	ctm.Load(filename.c_str());

 	m_nbVertices = ctm.GetInteger(CTM_VERTEX_COUNT);

Pierre Kraemer's avatar
Pierre Kraemer committed
865
 	// read points
Pierre Kraemer's avatar
Pierre Kraemer committed
866 867 868 869
	std::vector<unsigned int> verticesID;
	verticesID.reserve(m_nbVertices);

	const CTMfloat* vertices = ctm.GetFloatArray(CTM_VERTICES);
Pierre Kraemer's avatar
Pierre Kraemer committed
870
	for (unsigned int i = 0; i < m_nbVertices; ++i)
Pierre Kraemer's avatar
Pierre Kraemer committed
871
	{
Pierre Kraemer's avatar
Pierre Kraemer committed
872 873 874 875
		VEC3 pos(vertices[0], vertices[1], vertices[2]);
		vertices += 3; // next vertex in float*
		unsigned int id = container.insertLine();
		positions[id] = pos;
Pierre Kraemer's avatar
Pierre Kraemer committed
876 877 878 879 880 881 882 883 884
		verticesID.push_back(id);
	}

	// read nb of faces
	m_nbFaces = ctm.GetInteger(CTM_TRIANGLE_COUNT);
	m_nbEdges.reserve(m_nbFaces);
	m_emb.reserve(3*m_nbFaces);

	const CTMuint * indices = ctm.GetIntegerArray(CTM_INDICES);
Pierre Kraemer's avatar
Pierre Kraemer committed
885 886

	// read indices of faces
Pierre Kraemer's avatar
Pierre Kraemer committed
887 888 889 890 891 892 893 894 895 896 897 898
	for (unsigned i=0; i<m_nbFaces; i++)
	{
		m_nbEdges.push_back(3);
		// read the three vertices of triangle
		m_emb.push_back(verticesID[*indices++]);
		m_emb.push_back(verticesID[*indices++]);
		m_emb.push_back(verticesID[*indices++]);
	}

	return true;
}

899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959




template <typename PFP>
bool MeshTablesSurface<PFP>::importAHEM(const std::string& filename, std::vector<std::string>& attrNames)
{
	// Open file

	std::ifstream fp(filename.c_str(), std::ios::binary);

	if (!fp.good())
	{
		CGoGNerr << "Unable to open file " << filename << CGoGNendl;
		return false;
	}


	// Read header

	AHEMHeader hdr;

	fp.read((char*)&hdr, sizeof(AHEMHeader));

	if(hdr.magic != AHEM_MAGIC)
		CGoGNerr << "Warning: " << filename << " invalid magic" << CGoGNendl;


	m_nbVertices = hdr.meshHdr.vxCount;
	m_nbFaces = hdr.meshHdr.faceCount;


	// Read attributes

	AHEMAttributeDescriptor* ahemAttrDesc = new AHEMAttributeDescriptor[hdr.attributesChunkNumber];
	char** ahemAttrNames = new char*[hdr.attributesChunkNumber];

	for(unsigned int i = 0 ; i < hdr.attributesChunkNumber ; i++)
	{
		fp.read((char*)(ahemAttrDesc + i), sizeof(AHEMAttributeDescriptor));
		
		ahemAttrNames[i] = new char[ahemAttrDesc[i].nameSize + 1];
		fp.read(ahemAttrNames[i], ahemAttrDesc[i].nameSize);
		ahemAttrNames[i][ahemAttrDesc[i].nameSize] = '\0';
	}
	

	// Compute buffer size for largest chunk and allocate

	unsigned int bufferSize = hdr.meshHdr.meshChunkSize;

	for(unsigned int i = 0 ; i < hdr.attributesChunkNumber ; i++)
		if(ahemAttrDesc[i].attributeChunkSize > bufferSize)
			bufferSize = ahemAttrDesc[i].attributeChunkSize;


	char* buffer = new char[bufferSize];


    // Allocate vertices

Pierre Kraemer's avatar
Pierre Kraemer committed
960
	AttributeContainer& vxContainer = m_map.getAttributeContainer(VERTEX);
961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004


	std::vector<unsigned int> verticesId;
	verticesId.resize(hdr.meshHdr.vxCount);

	for(unsigned int i = 0 ; i < hdr.meshHdr.vxCount ; i++)
		verticesId[i] = vxContainer.insertLine();



	// Read faces stream

	m_nbEdges.resize(hdr.meshHdr.faceCount);
	m_emb.resize(hdr.meshHdr.heCount);

	fp.read(buffer, hdr.meshHdr.meshChunkSize);
	char* batch = buffer;

	unsigned int fCount = 0;

	unsigned int fId = 0;
	unsigned int j = 0;

	while(fCount < hdr.meshHdr.faceCount)
	{
		AHEMFaceBatchDescriptor* fbd = (AHEMFaceBatchDescriptor*)batch;
		stUInt32* ix = (stUInt32*)(batch + sizeof(AHEMFaceBatchDescriptor));

		for(unsigned int i = 0 ; i < fbd->batchLength ; i++)
		{
			m_nbEdges[fId++] = fbd->batchFaceSize;

			for(unsigned int k = 0 ; k < fbd->batchFaceSize ; k++)
				m_emb[j++] = *ix++;
		}

		fCount += fbd->batchLength;
		batch = (char*)ix;
	}
	


	// Read positions

Pierre Kraemer's avatar
Pierre Kraemer committed
1005
	AttributeHandler<typename PFP::VEC3> position =  m_map.template getAttribute<typename PFP::VEC3>(VERTEX, "position") ;
1006 1007

	if (!position.isValid())
Pierre Kraemer's avatar
Pierre Kraemer committed
1008
		position = m_map.template addAttribute<typename PFP::VEC3>(VERTEX, "position") ;
1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050

	attrNames.push_back(position.name()) ;

	AHEMAttributeDescriptor* posDesc = NULL;
	
	for(unsigned int i = 0 ; i < hdr.attributesChunkNumber ; i++)
		if(IsEqualGUID(ahemAttrDesc[i].semantic, AHEMATTRIBUTE_POSITION))
		{
			posDesc = ahemAttrDesc + i;
			break;
		}

	fp.seekg(posDesc->fileStartOffset, std::ios_base::beg);
	fp.read(buffer, posDesc->attributeChunkSize);

	float* q = (float*)buffer;

	for(unsigned int i = 0 ; i < hdr.meshHdr.vxCount ; i++)
	{
		position[verticesId[i]] = VEC3(q[0], q[1], q[2]);
		q += 3;
	}

	


	// Close file and release allocated stuff

	fp.close();

	for(unsigned int i = 0 ; i < hdr.attributesChunkNumber ; i++)
		delete[] ahemAttrNames[i];

	delete[] ahemAttrNames;
	delete[] ahemAttrDesc;
	delete[] buffer;

	return true;
}



Pierre Kraemer's avatar
Pierre Kraemer committed
1051
template<typename PFP>
1052
void MeshTablesSurface<PFP>::extractMeshRec(AttributeContainer& container, AttributeHandler<typename PFP::VEC3>& positions, const struct aiScene* scene, const struct aiNode* nd, struct aiMatrix4x4* trafo)
Pierre Kraemer's avatar
Pierre Kraemer committed
1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072
{
	struct aiMatrix4x4 prev;

	prev = *trafo;
	aiMultiplyMatrix4(trafo,&nd->mTransformation);

	std::vector<unsigned int> verticesID;

	// foreach mesh of node
	for (unsigned int n = 0; n < nd->mNumMeshes; ++n)
	{
		const struct aiMesh* mesh = scene->mMeshes[nd->mMeshes[n]];

		verticesID.clear();
		verticesID.reserve(mesh->mNumVertices);
		//read positions
		for (unsigned int t = 0; t < mesh->mNumVertices; ++t)
		{
			// transform position
			struct aiVector3D tmp = mesh->mVertices[t];
Pierre Kraemer's avatar
Pierre Kraemer committed
1073
			aiTransformVecByMatrix4(&tmp, trafo);
Pierre Kraemer's avatar
Pierre Kraemer committed
1074
			// now store it
Pierre Kraemer's avatar
Pierre Kraemer committed
1075 1076
			unsigned int id = container.insertLine();
			positions[id] = VEC3(tmp[0], tmp[1], tmp[2]);
Pierre Kraemer's avatar
Pierre Kraemer committed
1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097
			verticesID.push_back(id);
		}
		m_nbVertices += mesh->mNumVertices;

		// read faces indices
		for (unsigned int t = 0; t < mesh->mNumFaces; ++t)
		{
			const struct aiFace* face = &mesh->mFaces[t];
			m_nbEdges.push_back(face->mNumIndices);
			for(unsigned int i = 0; i < face->mNumIndices; i++)
			{
				unsigned int pt = face->mIndices[i];
				m_emb.push_back(verticesID[pt]);
			}
		}
		m_nbFaces += mesh->mNumFaces;
	}

	// recurse on all children of node
	for (unsigned int n = 0; n < nd->mNumChildren; ++n)
	{
1098
//		CGoGNout << "Children "<<n<< CGoGNendl;
Pierre Kraemer's avatar
Pierre Kraemer committed
1099
		extractMeshRec(container, positions, scene, nd->mChildren[n], trafo);
Pierre Kraemer's avatar
Pierre Kraemer committed
1100 1101 1102 1103 1104
	}
	*trafo = prev;
}

template <typename PFP>
Pierre Kraemer's avatar
Pierre Kraemer committed
1105
bool MeshTablesSurface<PFP>::importASSIMP(const std::string& filename, std::vector<std::string>& attrNames)
Pierre Kraemer's avatar
Pierre Kraemer committed
1106
{
1107 1108
	AttributeContainer& container = m_map.getAttributeContainer(VERTEX) ;
	AttributeHandler<typename PFP::VEC3> positions = m_map.template addAttribute<typename PFP::VEC3>(VERTEX, "position") ;
Pierre Kraemer's avatar
Pierre Kraemer committed
1109 1110
	attrNames.push_back(positions.name()) ;

Pierre Kraemer's avatar
Pierre Kraemer committed
1111 1112 1113 1114 1115 1116 1117 1118 1119 1120
	m_nbVertices = 0;
	m_nbFaces = 0;

 	m_nbEdges.reserve(5000);
	m_emb.reserve(15000);

	struct aiMatrix4x4 trafo;
	aiIdentityMatrix4(&trafo);

	m_lab = 0;
Pierre Kraemer's avatar
Pierre Kraemer committed
1121 1122
	const struct aiScene* scene = aiImportFile(filename.c_str(), aiProcess_FindDegenerates | aiProcess_JoinIdenticalVertices);
	extractMeshRec(container, positions, scene, scene->mRootNode, &trafo);
Pierre Kraemer's avatar
Pierre Kraemer committed
1123 1124 1125 1126

	return true;
}

1127 1128 1129
template<typename PFP>
bool MeshTablesSurface<PFP>::mergeCloseVertices()
{
thery's avatar
thery committed
1130
	const int NBV=64; // seems to be good
1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197

	const int NEIGH[27]={
	-NBV*NBV - NBV - 1, 	-NBV*NBV - NBV, 	-NBV*NBV - NBV + 1,
	-NBV*NBV - 1, 	-NBV*NBV, 	-NBV*NBV + 1,
	-NBV*NBV + NBV - 1,	-NBV*NBV + NBV,	- NBV*NBV + NBV + 1,
	-NBV - 1,	- NBV,	-NBV + 1,
	-1,	0,	1,
	NBV - 1,	NBV,	NBV + 1,
	NBV*NBV - NBV - 1,	NBV*NBV - NBV,	NBV*NBV - NBV + 1,
	NBV*NBV - 1,	NBV*NBV,	NBV*NBV + 1,
	NBV*NBV + NBV - 1,	NBV*NBV + NBV,	NBV*NBV + NBV + 1};

	std::vector<unsigned int>** grid;
	grid = new std::vector<unsigned int>*[NBV*NBV*NBV];

	// init grid with null ptrs	
	for (unsigned int i=0; i<NBV*NBV*NBV; ++i)
		grid[i]=NULL;
	
	AttributeHandler<typename PFP::VEC3> positions = m_map.template getAttribute<typename PFP::VEC3>(VERTEX, "position");
	
	// compute BB
	Geom::BoundingBox<typename PFP::VEC3> bb(positions[ positions.begin() ]) ;
	for (unsigned int i = positions.begin(); i != positions.end(); positions.next(i))
	{
		bb.addPoint(positions[i]) ;
	}

	// add one voxel around to avoid testing		
	typename PFP::VEC3 bbsize = (bb.max() - bb.min());
	typename PFP::VEC3 one = bbsize/(NBV-2);
	one*= 1.001f;
	bb.addPoint( bb.min() - one);
	bb.addPoint( bb.max() + one);
	bbsize = (bb.max() - bb.min());
	

	AutoAttributeHandler<unsigned int> gridIndex(m_map,VERTEX, "gridIndex");
	AutoAttributeHandler<unsigned int> newIndices(m_map,VERTEX, "newIndices");
	
	
	// Store each vertex in the grid and store voxel index in vertex attribute
	for (unsigned int i = positions.begin(); i != positions.end(); positions.next(i))
	{
		typename PFP::VEC3 P = positions[i];
		P -= bb.min();
		float pz = floor((P[2]/bbsize[2])*NBV);
		float py = floor((P[1]/bbsize[1])*NBV);
		float px = floor((P[0]/bbsize[0])*NBV);

		unsigned int index = NBV*NBV*pz + NBV*py + px;
		
		if (pz==63) 
			std::cout << "z 63 bb:"<<bb<<"  P="<<positions[i]<< std::endl;
		
		std::vector<unsigned int>* vox = grid[index];
		if (vox==NULL)
		{
			grid[index] = new std::vector<unsigned int>();
			grid[index]->reserve(8);
			vox = grid[index];
		}
		vox->push_back(i);
		gridIndex[i] = index;
		newIndices[i] = 0xffffffff;
	}
	
1198