Création d'un compte pour un collaborateur extérieur au laboratoire depuis l'intranet ICube : https://intranet.icube.unistra.fr/fr/labs/member/profile

importObjEle.hpp 6.53 KB
Newer Older
Pierre Kraemer's avatar
Pierre Kraemer committed
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
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
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
/*******************************************************************************
* CGoGN: Combinatorial and Geometric modeling with Generic N-dimensional Maps  *
* version 0.1                                                                  *
* Copyright (C) 2009, IGG Team, LSIIT, University of Strasbourg                *
*                                                                              *
* 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.           *
*                                                                              *
* Web site: https://iggservis.u-strasbg.fr/CGoGN/                              *
* Contact information: cgogn@unistra.fr                                        *
*                                                                              *
*******************************************************************************/

#include "Algo/Modelisation/polyhedron.h"
#include <vector>

namespace CGoGN
{
namespace Algo
{
namespace Import 
{

template<typename PFP>
bool importOFFWithELERegions(typename PFP::MAP& the_map, typename PFP::TVEC3& m_position, char* filenameOFF, char * filenameELE)
{
	typedef typename PFP::VEC3 VEC3;

	unsigned int m_nbVertices=0, m_nbFaces=0, m_nbEdges=0, m_nbVolumes=0;

	AutoAttributeHandler<  NoMathIONameAttribute< std::vector<Dart> > > vecDartsPerVertex(the_map, VERTEX_ORBIT, "incidents");

	// open files
	std::ifstream foff(filenameOFF, std::ios::in);
	if (!foff.good())
	{
		std::cerr << "Unable to open OFF file " << std::endl;
		return false;
	}

	std::ifstream fele(filenameELE, std::ios::in);
	if (!fele.good())
	{
		std::cerr << "Unable to open ELE file " << std::endl;
		return false;
	}

	std::string line;

	//OFF reading
	std::getline(foff,line);
	if(line.rfind("OFF") == std::string::npos)
	{
		std::cerr << "Problem reading off file: not an off file"<<std::endl;
		std::cerr << line << std::endl;
		return false;
	}


	//Reading number of vertex/faces/edges in OFF file
	int nbe;
	{
		do
		{
			std::getline(foff,line);
		}while(line.size() == 0);

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

	//Reading number of tetrahedra in ELE file
	int nbv;
	{
		do
		{
			std::getline(fele,line);
		}while(line.size() == 0);

		std::stringstream oss(line);
		oss >> m_nbVolumes;
		oss >> nbv ; oss >> nbv;
	}

	std::cout << "nb points = " << m_nbVertices << " / nb faces = " << m_nbFaces << " / nb edges = " << m_nbEdges << " / nb tet = " << m_nbVolumes << std::endl;

	AttribContainer& m_container = the_map.getAttributeContainer(VERTEX_ORBIT);

	//Reading vertices
	std::vector<unsigned int> verticesID;
	verticesID.reserve(m_nbVertices);

	for(unsigned int i=0 ; i < m_nbVertices ; ++i)
	{
		do
		{
			std::getline(foff,line);
		}while(line.size() == 0);

		std::stringstream oss(line);

		float x,y,z;
		oss >> x;
		oss >> y;
		oss >> z;
		//we can read colors informations if exists
		VEC3 pos(x,y,z);

		unsigned int id = m_container.insertLine();
		m_position[id] = pos;

//		std::cout << "emb : " << pos << " / id = " << id << std::endl;
		verticesID.push_back(id);
	}

	std::vector<std::vector<Dart> > vecDartPtrEmb;
	vecDartPtrEmb.reserve(m_nbVertices);

	//Read and embed tetrahedra TODO
	for(unsigned i=0; i < m_nbVolumes ; ++i)
	{
		do
		{
			std::getline(fele,line);
		} while(line.size() == 0);

		std::stringstream oss(line);
		oss >> nbe;
//		std::cout << "tetra number : " << nbe << std::endl;

		//Algo::Modelisation::Polyhedron<PFP>::createOrientedTetra(the_map);
		Dart d = Algo::Modelisation::Polyhedron<PFP>::createOrientedPolyhedron(the_map,4);
		Geom::Vec4ui pt;
		oss >> pt[0];
		oss >> pt[1];
		oss >> pt[2];
		oss >> pt[3];

		//regions ?
		oss >> nbe;

//		std::cout << "\t embedding number : " << pt[0] << " " << pt[1] << " " << pt[2] << " " << pt[3] << std::endl;

		// Embed three vertices
		for(unsigned int j=0 ; j<3 ; ++j)
		{
//			std::cout << "\t embedding number : " << pt[j];

			FunctorSetEmb<typename PFP::MAP> femb(the_map,VERTEX_ORBIT,verticesID[pt[j]]);

			Dart dd = d;
			do {
				femb(dd);
				//vecDartPtrEmb[pt[j]].push_back(dd);
				vecDartsPerVertex[pt[j]].push_back(dd);
				dd = the_map.phi1(the_map.phi2(dd));
			} while(dd!=d);

			d = the_map.phi1(d);

//			std::cout << " done" << std::endl;
		}

		//Embed the last vertex
//		std::cout << "\t embedding number : " << pt[3] << std::endl;
		d = the_map.phi_1(the_map.phi2(d));

		FunctorSetEmb<typename PFP::MAP> femb(the_map,VERTEX_ORBIT,verticesID[pt[3]]);
		Dart dd = d;
		do {
			femb(dd);
//			std::cout << "embed" << std::endl;
			//vecDartPtrEmb[pt[3]].push_back(dd);
			vecDartsPerVertex[pt[3]].push_back(dd);
			dd = the_map.phi1(the_map.phi2(dd));
		} while(dd != d);

//		std::cout << "end tetra" << std::endl;
	}

//	std::cout << "end 1/2" << std::endl;

	foff.close();
	fele.close();

	//Association des phi3
	for (Dart d = the_map.begin(); d != the_map.end(); the_map.next(d))
	{
		std::vector<Dart>& vec = vecDartsPerVertex[d];

		for(typename std::vector<Dart>::iterator it = vec.begin(); it!=vec.end(); ++it)
		{
			if(the_map.phi3(*it)==*it)
			{
				bool sewn=false;
				for(typename std::vector<Dart>::iterator itnext=it+1; itnext!=vec.end() && !sewn; ++itnext)
				{
					if(the_map.getDartEmbedding(VERTEX_ORBIT,the_map.phi1(*it))==the_map.getDartEmbedding(VERTEX_ORBIT,the_map.phi_1(*itnext))
					&& the_map.getDartEmbedding(VERTEX_ORBIT,the_map.phi_1(*it))==the_map.getDartEmbedding(VERTEX_ORBIT,the_map.phi1(*itnext)))
					{
						the_map.sewVolumes(*it,the_map.phi_1(*itnext));
						sewn = true;
					}
				}
			}
		}
	}

//	std::cout << "end 2/2" << std::endl;

	return true;
}


}
} // end namespaces
}