geometry.cpp 65.9 KB
Newer Older
Kirill Terekhov's avatar
Kirill Terekhov committed
1
2
#include "inmost.h"
#if defined(USE_MESH)
Kirill Terekhov's avatar
Kirill Terekhov committed
3
#include <deque>
Kirill Terekhov's avatar
Kirill Terekhov committed
4
using namespace std;
Kirill Terekhov's avatar
Kirill Terekhov committed
5

Kirill Terekhov's avatar
Kirill Terekhov committed
6
7
8
9
10
const std::string normal_name = "PROTECTED_GEOM_UTIL_NORMAL";
const std::string measure_name = "PROTECTED_GEOM_UTIL_MEASURE";
const std::string centroid_name = "PROTECTED_GEOM_UTIL_CENTROID";
const std::string barycenter_name = "PROTECTED_GEOM_UTIL_BARYCENTER";

Kirill Terekhov's avatar
Kirill Terekhov committed
11
12
namespace INMOST
{
Kirill Terekhov's avatar
Kirill Terekhov committed
13
14
15
16
17
18
19
20
21
22
	typedef struct orient_face_t
	{
		Edge bridge;
		Node first;
		Face face;
		orient_face_t(Edge _bridge, Node _first, Face _face)
		:bridge(_bridge),first(_first),face(_face)
		{
		}
	} orient_face;
Kirill Terekhov's avatar
Kirill Terekhov committed
23

Kirill Terekhov's avatar
Kirill Terekhov committed
24
25
26
27
28
29
	__INLINE static void vec_diff(const Storage::real * vecin1, const Storage::real * vecin2, Storage::real * vecout, unsigned int size)
	{
		for(unsigned int i = 0; i < size; i++)
			vecout[i] = vecin1[i] - vecin2[i];
	}
	
30
31
32
33
34
35
	__INLINE static void vec_diff(const Storage::real_array & vecin1, const Storage::real * vecin2, Storage::real * vecout, unsigned int size)
	{
		for(unsigned int i = 0; i < size; i++)
			vecout[i] = vecin1[i] - vecin2[i];
	}
	
Kirill Terekhov's avatar
Kirill Terekhov committed
36
37
38
39
40
41
42
	__INLINE static void vec_diff(const Storage::real_array & vecin1,const Storage::real_array & vecin2, Storage::real * vecout, unsigned int size)
	{
		for(unsigned int i = 0; i < size; i++)
			vecout[i] = vecin1[i] - vecin2[i];
	}
	
	
Kirill Terekhov's avatar
Kirill Terekhov committed
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
	__INLINE static void vec_cross_product(const Storage::real * vecin1, const Storage::real * vecin2, Storage::real * vecout)
	{
		Storage::real temp[3];
		temp[0] = vecin1[1]*vecin2[2] - vecin1[2]*vecin2[1];
		temp[1] = vecin1[2]*vecin2[0] - vecin1[0]*vecin2[2];
		temp[2] = vecin1[0]*vecin2[1] - vecin1[1]*vecin2[0];
		vecout[0] = temp[0];
		vecout[1] = temp[1];
		vecout[2] = temp[2];
	}
	
	__INLINE static Storage::real vec_dot_product(const Storage::real * vecin1,const Storage::real * vecin2, unsigned int size)
	{
		Storage::real ret = 0;
		for(unsigned int i = 0; i < size; i++)
			ret += vecin1[i]*vecin2[i];
		return ret;
	}
	
	__INLINE static Storage::real vec_len2(const Storage::real * vecin, unsigned int size)
	{
		return vec_dot_product(vecin,vecin,size);
	}
	
	__INLINE static Storage::real vec_len(const Storage::real * vecin, unsigned int size)
	{
Kirill Terekhov's avatar
Kirill Terekhov committed
69
		return ::sqrt(vec_len2(vecin,size));
Kirill Terekhov's avatar
Kirill Terekhov committed
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
	}
	
	__INLINE static Storage::real det3d(Storage::real a, Storage::real b, Storage::real c,
	                         Storage::real d, Storage::real e, Storage::real f,
	                         Storage::real g, Storage::real h, Storage::real i ) 
	{
		return a*e*i - c*e*g + b*f*g - a*f*h + c*d*h - b*d*i;
	}
	
	__INLINE static Storage::real det3v(const Storage::real * x,const Storage::real * y,const Storage::real * z) 
	{
		return det3d(x[0], x[1], x[2],  y[0], y[1], y[2],  z[0], z[1], z[2]);
	}
	
	__INLINE static Storage::real det4v(const Storage::real * w, const Storage::real * x, const Storage::real * y, const Storage::real * z) 
	{
		return det3d(x[0]-w[0], x[1]-w[1], x[2]-w[2],  y[0]-w[0], y[1]-w[1], y[2]-w[2],  z[0]-w[0], z[1]-w[1], z[2]-w[2]);
	}	
	
	
	__INLINE static Storage::real vec_normalize(Storage::real * vecin, unsigned int size)
	{
		Storage::real len = 0;
		for(unsigned int i = 0; i < size; i++)
			len += vecin[i]*vecin[i];
Kirill Terekhov's avatar
Kirill Terekhov committed
95
		len = ::sqrt(len);
Kirill Terekhov's avatar
Kirill Terekhov committed
96
97
98
99
		for(unsigned int i = 0; i < size; i++)
			vecin[i] /= len;
		return len;
	}
100
101
102
103
104
105
106
107
108
109
110
111
112

	__INLINE static Storage::real triarea3d(const Storage::real p1[3], const Storage::real p2[3], const Storage::real p3[3])
	{
		Storage::real v12[3], v13[3], v23[3], l12, l13, l23, halfperim;
		vec_diff(p2,p1,v12,3);
		vec_diff(p3,p1,v13,3);
		vec_diff(p3,p2,v23,3);
		l12 = vec_len(v12,3);
		l13 = vec_len(v13,3);
		l23 = vec_len(v23,3);
		halfperim = 0.5*(l12+l13+l23);
		return sqrt(halfperim*(halfperim-l12)*(halfperim-l13)*(halfperim-l23));
	}
Kirill Terekhov's avatar
Kirill Terekhov committed
113
114
	
	
Kirill Terekhov's avatar
Kirill Terekhov committed
115
	ElementArray<Cell> Cell::NeighbouringCells() const
Kirill Terekhov's avatar
Kirill Terekhov committed
116
	{
Kirill Terekhov's avatar
Kirill Terekhov committed
117
118
119
		ElementArray<Cell> ret(GetMeshLink());
		ElementArray<Face> faces = getFaces();
		for(ElementArray<Face>::iterator f = faces.begin(); f != faces.end(); f++)
Kirill Terekhov's avatar
Kirill Terekhov committed
120
		{
Kirill Terekhov's avatar
Kirill Terekhov committed
121
122
			Cell c = Neighbour(f->self());
			if( c.isValid() ) ret.push_back(c);
Kirill Terekhov's avatar
Kirill Terekhov committed
123
124
125
126
127
		}
		return ret;
	}
	
	
Kirill Terekhov's avatar
Kirill Terekhov committed
128
	Cell Cell::Neighbour(Face f) const
Kirill Terekhov's avatar
Kirill Terekhov committed
129
	{
Kirill Terekhov's avatar
Kirill Terekhov committed
130
131
		Cell b = f->BackCell();
		if( b == self() )
Kirill Terekhov's avatar
Kirill Terekhov committed
132
133
134
			return f->FrontCell();
		return b;
	}
135
136
137
138

	bool Face::Inside(const Storage::real * point) const
	{
		Mesh * mesh = GetMeshLink();
139
		real eps = mesh->GetEpsilon();
140
		integer dim = mesh->GetDimensions();
141
142
143
		integer mdim = GetElementDimension();
		
		if(mdim < 2)
144
		{
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
			// check whether point lies on edge
			real v1[3], v2[3], v12[3], r1[3], r2[3], nrm[3], area, h, len;
			ElementArray<Node> nodes = getNodes();
			assert(nodes.size() == 2);// 
			nodes[0].Centroid(v1);
			nodes[1].Centroid(v2);
			vec_diff(point,v1,r1,dim);
			vec_diff(point,v2,r2,dim);
			vec_diff(v2,v1,v12,dim);
			len = vec_len(v12,dim);
			assert(len > 1e-20);
			vec_cross_product(r1,v12,nrm);
			area = vec_len(nrm,dim);
			h = area / len;
			if( h > eps )	return false; // point does not lie on line
			return vec_dot_product(r1,r2,dim) <= 0.0; // point is between edge nodes
161
162
		}

163
		real nrm[3], cnt[3], v[3];
164
165
		UnitNormal(nrm);
		Centroid(cnt);
166
167
168
		vec_diff(cnt,point,v,dim);
		real d = vec_dot_product(nrm,v,dim);
		if(fabs(d) > eps)	return false;	// point is too far from the face plane
169

170
171
172
173
174
		// 2d algorithm from Cell::Inside 
		real data[9][3];
		for(int k = 0; k < 9; k++) for(int j = 0; j < 3; j++)	data[k][j] = 0;
		ElementArray<Node> nodes = getNodes();
		for(int i = 0; i < static_cast<int>(nodes.size()); i++)
175
		{
176
177
178
179
180
181
182
183
184
185
186
187
188
189
			int j = (i+1)%nodes.size();
			nodes[i].Centroid(data[1]);
			nodes[j].Centroid(data[2]);
			vec_diff(point,data[0],data[3],dim);
			vec_diff(point,data[1],data[4],dim);
			vec_diff(point,data[2],data[5],dim);
			vec_cross_product(data[3],data[4],data[6]);
			vec_cross_product(data[4],data[5],data[7]);
			vec_cross_product(data[5],data[3],data[8]);
			
			if( vec_dot_product(data[6],data[7],dim) >= 0 &&
				vec_dot_product(data[7],data[8],dim) >= 0 &&
				vec_dot_product(data[8],data[6],dim) >= 0 )
				return true; //inside one of the triangles
190
191
192
		}
		return false;
	}
Kirill Terekhov's avatar
Kirill Terekhov committed
193
	
Kirill Terekhov's avatar
Updates    
Kirill Terekhov committed
194
	bool Cell::Inside(const Storage::real * point) const//check for 2d case
Kirill Terekhov's avatar
Kirill Terekhov committed
195
	{
Kirill Terekhov's avatar
Kirill Terekhov committed
196
		Mesh * mesh = GetMeshLink();
Kirill Terekhov's avatar
Updates    
Kirill Terekhov committed
197
198
199
		integer dim = GetElementDimension();
		if( dim == 3 )
		{
Kirill Terekhov's avatar
Kirill Terekhov committed
200
201
202
203
204
205
206
207
208
209
210
			/*
			tiny_map<HandleType,real,16> hits;
			real ray[3];
			ray[0] = rand()/(real)RAND_MAX;
			ray[1] = rand()/(real)RAND_MAX;
			ray[2] = rand()/(real)RAND_MAX;
			CastRay(point,ray,hits);
			if( hits.size()%2 == 0 ) return false;
			return true;
			 */
			assert(mesh->GetDimensions() == 3);
Kirill Terekhov's avatar
Updates    
Kirill Terekhov committed
211
212
213
			integer vp = 0;
			integer vm = 0;
			integer vz = 0;
Kirill Terekhov's avatar
Kirill Terekhov committed
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
			real eps = mesh->GetEpsilon();
			real c,d, fcnt[3];
			real_array v1,v2;
			ElementArray<Face> data = getFaces();
			Face cur = data[0];
			MarkerType mrk = mesh->CreatePrivateMarker();
			MarkerType rev = mesh->CreatePrivateMarker(); //reverse orientation
			data.SetPrivateMarker(mrk); //0-th face orientation is default
			cur->RemPrivateMarker(mrk);
			Node n1,n2; //to retrive edge
			bool reverse = false; //reverse orientation in considered face
			std::deque< orient_face > stack; //edge and first node and face for visiting
			//todo: can do faster by retriving edges and going over their nodes
			//should not use FindSharedAdjacency
			ElementArray<Edge> edges = cur->getEdges();
			do
			{
				//figure out starting node order
				if( edges[0]->getBeg() == edges[1]->getBeg() ||
				   edges[0]->getBeg() == edges[1]->getEnd() )
				{
					n1 = edges[0]->getEnd();
					n2 = edges[0]->getBeg();
				}
				else
				{
					n1 = edges[0]->getBeg();
					n2 = edges[0]->getEnd();
				}
				//schedule unvisited adjacent faces
				for(unsigned j = 0; j < edges.size(); j++)
				{
					//schedule face adjacent to considered edge
					ElementArray<Face> adjacent = edges[j]->getFaces(mrk);
					assert(adjacent.size() <= 1);
					if( !adjacent.empty() && adjacent[0].GetPrivateMarker(mrk))
					{
						adjacent.RemPrivateMarker(mrk);
						stack.push_back(orient_face(edges[j],reverse ? n2 : n1,adjacent[0]));
					}
					//update edge nodes
					n1 = n2; //current end is new begin
					//find new end
					if( n2 == edges[(j+1)%edges.size()]->getBeg() )
						n2 = edges[(j+1)%edges.size()]->getEnd();
					else
						n2 = edges[(j+1)%edges.size()]->getBeg();
				}
				if( stack.empty() ) break;
				//get entry from stack
				orient_face r = stack.front();
				//remove face from stack
				stack.pop_front();
				//retrive edges for new face
				edges = r.face->getEdges();
				reverse = false;
				//figure out starting node order
				if( edges[0]->getBeg() == edges[1]->getBeg() ||
				   edges[0]->getBeg() == edges[1]->getEnd() )
				{
					n1 = edges[0]->getEnd();
					n2 = edges[0]->getBeg();
				}
				else
				{
					n1 = edges[0]->getBeg();
					n2 = edges[0]->getEnd();
				}
				//find out common edge orientation
				for(unsigned j = 0; j < edges.size(); j++)
				{
					if( edges[j] == r.bridge ) //found the edge
					{
						//reverse ordering on this face
						if( r.first == n1 )
						{
							r.face->SetPrivateMarker(rev);
							reverse = true;
						}
						break;
					}
					//update edge nodes
					n1 = n2; //current end is new begin
					//find new end
					if( n2 == edges[(j+1)%edges.size()]->getBeg() )
						n2 = edges[(j+1)%edges.size()]->getEnd();
					else
						n2 = edges[(j+1)%edges.size()]->getBeg();
				}
			} while(true);
			data.RemPrivateMarker(mrk);
			mesh->ReleasePrivateMarker(mrk);
			for(ElementArray<Face>::size_type f = 0; f < data.size(); f++)
Kirill Terekhov's avatar
Updates    
Kirill Terekhov committed
307
308
			{
				d = 0.0;
Kirill Terekhov's avatar
Kirill Terekhov committed
309
310
311
312
313
314
315
316
317
318
319
320
321
				data[f]->Centroid(fcnt);
				ElementArray<Node> nodes = data[f]->getNodes();
				v1 = nodes[0].Coords();
				for (ElementArray<Node>::size_type i=0; i<nodes.size(); i++)
				{
					v2 = nodes[(i+1)%nodes.size()].Coords();
					d += c = det4v(point, fcnt, v1.data(), v2.data());
					v1.swap(v2);
				}
				//if(!data[f]->FaceOrientedOutside(self()))
				if( data[f]->GetPrivateMarker(rev) )
					c = -1.0;
				else
Kirill Terekhov's avatar
Updates    
Kirill Terekhov committed
322
					c = 1.0;
Kirill Terekhov's avatar
Kirill Terekhov committed
323
324
325
326
327
				if(c*d > eps)
					vp++;
				else if(c*d < -eps)
					vm++;
				else
Kirill Terekhov's avatar
Updates    
Kirill Terekhov committed
328
329
					vz++;
			}
Kirill Terekhov's avatar
Kirill Terekhov committed
330
331
			data.RemPrivateMarker(rev);
			mesh->ReleasePrivateMarker(rev);
Kirill Terekhov's avatar
Updates    
Kirill Terekhov committed
332
			if(vp*vm > 0) return false;
Kirill Terekhov's avatar
Kirill Terekhov committed
333
			else if( vz == 0 ) return true;
Kirill Terekhov's avatar
Kirill Terekhov committed
334
			else return true;
Kirill Terekhov's avatar
Updates    
Kirill Terekhov committed
335
336
		}
		else
Kirill Terekhov's avatar
Kirill Terekhov committed
337
		{
Kirill Terekhov's avatar
Kirill Terekhov committed
338
			int mdim = mesh->GetDimensions();
Kirill Terekhov's avatar
Updates    
Kirill Terekhov committed
339
340
341
342
343
344
345
346
			assert(mdim <= 3);
			Storage::real data[9][3];
			if( mdim < 3 )
			{
				memset(data,0,sizeof(Storage::real)*9*3);
			}
			Centroid(data[0]);
			ElementArray<Node> nodes = getNodes();
Kirill Terekhov's avatar
Kirill Terekhov committed
347
			for(int i = 0; i < static_cast<int>(nodes.size()); i++)
Kirill Terekhov's avatar
Updates    
Kirill Terekhov committed
348
349
350
351
352
353
354
355
356
357
			{
				int j = (i+1)%nodes.size();
				nodes[i].Centroid(data[1]);
				nodes[j].Centroid(data[2]);
				vec_diff(point,data[0],data[3],mdim);
				vec_diff(point,data[1],data[4],mdim);
				vec_diff(point,data[2],data[5],mdim);
				vec_cross_product(data[3],data[4],data[6]);
				vec_cross_product(data[4],data[5],data[7]);
				vec_cross_product(data[5],data[3],data[8]);
Kirill Terekhov's avatar
Kirill Terekhov committed
358
				
Kirill Terekhov's avatar
Updates    
Kirill Terekhov committed
359
				if( vec_dot_product(data[6],data[7],mdim) >= 0 &&
Kirill Terekhov's avatar
Kirill Terekhov committed
360
361
				   vec_dot_product(data[7],data[8],mdim) >= 0 &&
				   vec_dot_product(data[6],data[8],mdim) >= 0 )
Kirill Terekhov's avatar
Updates    
Kirill Terekhov committed
362
363
364
					return true; //inside one of the triangles
			}
			return false;
Kirill Terekhov's avatar
Kirill Terekhov committed
365
366
367
368
		}
	}
	
	
Kirill Terekhov's avatar
Kirill Terekhov committed
369
	void Face::UnitNormal(real * nrm) const
Kirill Terekhov's avatar
Kirill Terekhov committed
370
	{
Kirill Terekhov's avatar
Kirill Terekhov committed
371
372
373
		Mesh * m = GetMeshLink();
		m->GetGeometricData(GetHandle(),NORMAL,nrm); 
		integer dim = m->GetDimensions();
Kirill Terekhov's avatar
Kirill Terekhov committed
374
		real    l   = ::sqrt(vec_dot_product(nrm,nrm,dim)); 
Kirill Terekhov's avatar
Kirill Terekhov committed
375
		if(::fabs(l) > m->GetEpsilon()) 
Kirill Terekhov's avatar
Kirill Terekhov committed
376
377
		{
			for(integer i = 0; i < dim; i++) 
Kirill Terekhov's avatar
Kirill Terekhov committed
378
				nrm[i] /= l; 
Kirill Terekhov's avatar
Kirill Terekhov committed
379
		}
Kirill Terekhov's avatar
Kirill Terekhov committed
380
381
	}
	
Kirill Terekhov's avatar
Kirill Terekhov committed
382
	void Face::OrientedNormal(Cell c, Storage::real * nrm) const
Kirill Terekhov's avatar
Kirill Terekhov committed
383
384
	{
		Normal(nrm); 
Kirill Terekhov's avatar
Kirill Terekhov committed
385
386
387
388
		if( !FaceOrientedOutside(c) )
		{
			integer dim = GetMeshLink()->GetDimensions();
			for(integer i = 0; i < dim; i++) 
Kirill Terekhov's avatar
Kirill Terekhov committed
389
				nrm[i] = -nrm[i];
Kirill Terekhov's avatar
Kirill Terekhov committed
390
		}
Kirill Terekhov's avatar
Kirill Terekhov committed
391
392
393
	}
	
	
Kirill Terekhov's avatar
Kirill Terekhov committed
394
	void Face::OrientedUnitNormal(Cell c, Storage::real * nrm) const
Kirill Terekhov's avatar
Kirill Terekhov committed
395
396
397
	{
		UnitNormal(nrm); 
		if( !FaceOrientedOutside(c) ) 
Kirill Terekhov's avatar
Kirill Terekhov committed
398
399
400
		{
			integer dim = GetMeshLink()->GetDimensions();
			for(integer i = 0; i < dim; i++) 
Kirill Terekhov's avatar
Kirill Terekhov committed
401
				nrm[i] = -nrm[i];
Kirill Terekhov's avatar
Kirill Terekhov committed
402
		}
Kirill Terekhov's avatar
Kirill Terekhov committed
403
404
405
406
	}
	
	
	
Kirill Terekhov's avatar
Kirill Terekhov committed
407
	bool Mesh::TestClosure(const HandleType * elements, integer num) const
Kirill Terekhov's avatar
Kirill Terekhov committed
408
	{
Kirill Terekhov's avatar
Kirill Terekhov committed
409
410
411
		integer i;
		tiny_map<HandleType,int,64> e_visit;
		tiny_map<HandleType,int,64>::iterator it;
Kirill Terekhov's avatar
Kirill Terekhov committed
412
413
414
415
		if( !HideMarker() )
		{
			for(i = 0; i < num; i++)
			{
Kirill Terekhov's avatar
Kirill Terekhov committed
416
417
418
				Element::adj_type const & lc = LowConn(elements[i]);
				for(Element::adj_type::size_type jt = 0; jt < lc.size(); jt++)
					e_visit[lc[jt]]++;
Kirill Terekhov's avatar
Kirill Terekhov committed
419
420
421
422
			}
		}
		else
		{
Kirill Terekhov's avatar
Kirill Terekhov committed
423
			for(i = 0; i < num; i++) if( !GetMarker(elements[i],HideMarker()) )
Kirill Terekhov's avatar
Kirill Terekhov committed
424
			{
Kirill Terekhov's avatar
Kirill Terekhov committed
425
426
427
428
429
430
				Element::adj_type const & lc = LowConn(elements[i]);
				for(Element::adj_type::size_type jt = 0; jt < lc.size(); jt++) 
				{
					if( !GetMarker(lc[jt],HideMarker()) ) 
						e_visit[lc[jt]]++;
				}
Kirill Terekhov's avatar
Kirill Terekhov committed
431
432
433
434
435
436
437
			}
		}
		for(it = e_visit.begin(); it != e_visit.end(); it++)
			if( it->second != 2 ) return false;
		return true;
	}
	
438
	Element::GeometricType Mesh::ComputeGeometricType(ElementType etype, const HandleType * lc, INMOST_DATA_ENUM_TYPE size)
Kirill Terekhov's avatar
Kirill Terekhov committed
439
440
	{
		Element::GeometricType ret = Element::Unset;
441
442
443
444
		INMOST_DATA_ENUM_TYPE s = 0;
		if( isMeshModified() )
			s = Mesh::Count(lc,size,HideMarker());
		else s = size;
Kirill Terekhov's avatar
Kirill Terekhov committed
445
		int dmax = -1, dmin = 4;
Kirill Terekhov's avatar
Kirill Terekhov committed
446
447
448
449
450
451
452
453
454
455
456
		if( s == 0 && etype != NODE) return ret;
		switch(etype)
		{
			case NODE: ret = Element::Vertex; break;
			case EDGE:
				if( s == 1 )
					ret = Element::Vertex;
				else if( s == 2 )
					ret = Element::Line;
				break;
			case FACE:
457
				for (INMOST_DATA_ENUM_TYPE k = 0; k < size; ++k) if( !Hidden(lc[k]) )
Kirill Terekhov's avatar
Kirill Terekhov committed
458
459
460
461
462
463
464
				{
					int d = Element::GetGeometricDimension(GetGeometricType(lc[k]));
					if (dmax < d) dmax = d;
					if (dmin > d) dmin = d;
				}
				if (dmax != dmin)
				{
Kirill Terekhov's avatar
Kirill Terekhov committed
465
					ret = Element::MultiLine;
Kirill Terekhov's avatar
Kirill Terekhov committed
466
467
				}
				else if( dmax == 0 )
Kirill Terekhov's avatar
Kirill Terekhov committed
468
469
470
471
472
				{ 
					ret = Element::Line;
				}
				else
				{
473
					if( !GetTopologyCheck(NEED_TEST_CLOSURE) || TestClosure(lc,size) )
Kirill Terekhov's avatar
Kirill Terekhov committed
474
475
476
477
478
479
480
481
482
483
484
485
					{
						if( s == 3 )
							ret = Element::Tri;
						else if( s == 4 )
							ret = Element::Quad;
						else
							ret = Element::Polygon;
					}
					else ret = Element::MultiLine;
				}
				break;
			case CELL:
486
				for (INMOST_DATA_ENUM_TYPE k = 0; k < size; ++k) if( !Hidden(lc[k]) )
Kirill Terekhov's avatar
Kirill Terekhov committed
487
488
489
490
491
492
493
494
495
496
				{
					int d = Element::GetGeometricDimension(GetGeometricType(lc[k]));
					if (dmax < d) dmax = d;
					if (dmin > d) dmin = d;
				}
				if (dmax != dmin)
				{
					ret = Element::MultiPolygon;
				}
				else if(  dmax == 1 )
Kirill Terekhov's avatar
Kirill Terekhov committed
497
				{
498
					if( !GetTopologyCheck(NEED_TEST_CLOSURE) || TestClosure(lc,size) )
Kirill Terekhov's avatar
Kirill Terekhov committed
499
500
501
502
503
504
505
506
507
508
509
510
					{
						if( s == 3 )
							ret = Element::Tri;
						else if( s == 4 )
							ret = Element::Quad;
						else
							ret = Element::Polygon;
					}
					else ret = Element::MultiLine;
				}
				else 
				{
511
					if( !GetTopologyCheck(NEED_TEST_CLOSURE) ||  TestClosure(lc,size) )
Kirill Terekhov's avatar
Kirill Terekhov committed
512
					{
513
514
515
516
517
						// for simple cells there is no more then one common edge
						// otherwise the cell should be treated as polyhedron
						bool check = true;
						MarkerType common = CreatePrivateMarker();
						for(INMOST_DATA_ENUM_TYPE i = 0; i < s; ++i)
Kirill Terekhov's avatar
Kirill Terekhov committed
518
						{
519
520
521
522
523
524
525
526
527
528
529
							const Element::adj_type & ilc = LowConn(lc[i]); // access edges of the i-th face
							for(INMOST_DATA_ENUM_TYPE r = 0; r < ilc.size(); ++r ) SetPrivateMarker(ilc[r],common);
							for(INMOST_DATA_ENUM_TYPE j = i+1; j < s; ++j )
							{
								const Element::adj_type & jlc = LowConn(lc[j]); // access edges of the j-th face
								int cnt = 0;
								for(INMOST_DATA_ENUM_TYPE r = 0; r < jlc.size(); ++r )
									if( GetPrivateMarker(jlc[r],common) ) cnt++;
								if( cnt > 1 ) check = false;
							}
							for(INMOST_DATA_ENUM_TYPE r = 0; r < ilc.size(); ++r ) RemPrivateMarker(ilc[r],common);
Kirill Terekhov's avatar
Kirill Terekhov committed
530
						}
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
						ReleasePrivateMarker(common);
						if( check )
						{
							//test c_faces closure, if no closure, set as MultiPolygon
							INMOST_DATA_ENUM_TYPE quads = 0,tris = 0,i;
							for(i = 0; i < size; i++) if( !Hidden(lc[i]) )
							{
								if( GetGeometricType(lc[i]) == Element::Tri )
									tris++;
								else if( GetGeometricType(lc[i]) == Element::Quad )
									quads++;
							}
							if( tris == 4 && s == 4 )
								ret = Element::Tet;
							else if( quads == 6 && s == 6 )
								ret = Element::Hex;
							else if( tris == 4 && quads == 1 && s == tris+quads)
								ret = Element::Pyramid;
							else if( quads == 3 && tris == 2 && s == tris+quads)
								ret = Element::Prism;
							else
								ret = Element::Polyhedron;
						}
						else ret = Element::Polyhedron;
Kirill Terekhov's avatar
Kirill Terekhov committed
555
556
557
558
559
560
561
562
563
					}
					else ret = Element::MultiPolygon;
				}
				break;
			case ESET: ret = Element::Set; break;
		}
		return ret;
	}

Kirill Terekhov's avatar
Kirill Terekhov committed
564
	Storage::real Edge::Length() const 
Kirill Terekhov's avatar
Kirill Terekhov committed
565
	{
Kirill Terekhov's avatar
Kirill Terekhov committed
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
		Storage::real ret; 
		GetMeshLink()->GetGeometricData(GetHandle(),MEASURE,&ret); 
		return ret;
	}

	Storage::real Face::Area() const 
	{
		real ret; 
		GetMeshLink()->GetGeometricData(GetHandle(),MEASURE,&ret); 
		return ret;
	}
	void Face::Normal(real * nrm) const 
	{
		GetMeshLink()->GetGeometricData(GetHandle(),NORMAL,nrm);
	}

	Storage::real Cell::Volume() const 
	{
		real ret; 
		GetMeshLink()->GetGeometricData(GetHandle(),MEASURE,&ret); 
		return ret;
	}

	void Element::ComputeGeometricType() const
	{
		GetMeshLink()->ComputeGeometricType(GetHandle());
Kirill Terekhov's avatar
Kirill Terekhov committed
592
593
	}
	
Kirill Terekhov's avatar
Kirill Terekhov committed
594
595
596
597
598
599
600
	void Mesh::ComputeGeometricType(HandleType h) 
	{
		SetGeometricType(h,Element::Unset);
		Element::adj_type const & lc = LowConn(h);
		if( !lc.empty() )
			SetGeometricType(h,ComputeGeometricType(GetHandleElementType(h),lc.data(),static_cast<integer>(lc.size())));
	}
Kirill Terekhov's avatar
Kirill Terekhov committed
601
	
Kirill Terekhov's avatar
Kirill Terekhov committed
602
	void Mesh::RecomputeGeometricData(HandleType e)
Kirill Terekhov's avatar
Kirill Terekhov committed
603
604
605
606
607
	{
		//static std::map<Element *, int> numfixes;
		GeometricData d ;
		for(d = CENTROID; d <= NORMAL; d++) // first compute centroids and normals 
		{
Kirill Terekhov's avatar
Kirill Terekhov committed
608
			if( HaveGeometricData(d,GetHandleElementType(e)) ) //compute centroid first
Kirill Terekhov's avatar
Kirill Terekhov committed
609
610
			{
				Tag t = GetGeometricTag(d);
Kirill Terekhov's avatar
Kirill Terekhov committed
611
612
				Storage::real * a = static_cast<Storage::real *>(MGetDenseLink(e,t));
				HideGeometricData(d,GetHandleElementType(e));
Kirill Terekhov's avatar
Kirill Terekhov committed
613
				GetGeometricData(e,d,a);
Kirill Terekhov's avatar
Kirill Terekhov committed
614
				ShowGeometricData(d,GetHandleElementType(e));
Kirill Terekhov's avatar
Kirill Terekhov committed
615
616
617
618
			}
		}


Kirill Terekhov's avatar
Kirill Terekhov committed
619
		if( GetHandleElementType(e) == CELL && HaveGeometricData(ORIENTATION,FACE)) //then correct the normal
Kirill Terekhov's avatar
Kirill Terekhov committed
620
		{
Kirill Terekhov's avatar
Kirill Terekhov committed
621
622
623
			Element::adj_type & lc = LowConn(e);
			for(Element::adj_type::iterator it = lc.begin(); it != lc.end(); ++it)
				if( !GetMarker(*it,HideMarker()) && HighConn(*it).size() == 1 )
Kirill Terekhov's avatar
Kirill Terekhov committed
624
				{
Kirill Terekhov's avatar
Kirill Terekhov committed
625
					Face(this,*it)->FixNormalOrientation();
Kirill Terekhov's avatar
Kirill Terekhov committed
626
627
628
629
				}
		}
		for(d = MEASURE; d <= BARYCENTER; d++) // compute the rest
		{
Kirill Terekhov's avatar
Kirill Terekhov committed
630
			if( HaveGeometricData(d,GetHandleElementType(e)) )
Kirill Terekhov's avatar
Kirill Terekhov committed
631
632
			{
				Tag t = GetGeometricTag(d);
Kirill Terekhov's avatar
Kirill Terekhov committed
633
634
				Storage::real * a = static_cast<Storage::real *>(MGetDenseLink(e,t));
				HideGeometricData(d,GetHandleElementType(e));
Kirill Terekhov's avatar
Kirill Terekhov committed
635
				GetGeometricData(e,d,a);
Kirill Terekhov's avatar
Kirill Terekhov committed
636
				ShowGeometricData(d,GetHandleElementType(e));
Kirill Terekhov's avatar
Kirill Terekhov committed
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
			}
		}
	}
	
	
	void Mesh::RemoveGeometricData(GeomParam table)
	{
		for(GeomParam::iterator it = table.begin(); it != table.end(); ++it)
		{
			if( it->first == MEASURE    ) 
			{
				if(measure_tag.isValid())    
					measure_tag    = DeleteTag(measure_tag   ,it->second);
				for(ElementType etype = EDGE; etype <= CELL; etype = etype << 1) if( etype & it->second) HideGeometricData(MEASURE,etype);
			}
			if( it->first == CENTROID   ) 
			{
				if(centroid_tag.isValid())   
					centroid_tag   = DeleteTag(centroid_tag  ,it->second);
				for(ElementType etype = EDGE; etype <= CELL; etype = etype << 1) if( etype & it->second) HideGeometricData(CENTROID,etype);
			}
			if( it->first == BARYCENTER ) 
			{
				if(barycenter_tag.isValid()) 
					barycenter_tag = DeleteTag(barycenter_tag,it->second);
				for(ElementType etype = EDGE; etype <= CELL; etype = etype << 1) if( etype & it->second) HideGeometricData(BARYCENTER,etype);
			}
			if( it->first == NORMAL     ) 
			{
				if(normal_tag.isValid())
					normal_tag     = DeleteTag(normal_tag    ,it->second);
				for(ElementType etype = FACE; etype <= CELL; etype = etype << 1) if( etype & it->second) HideGeometricData(NORMAL,etype);
			}
			if( it->first == ORIENTATION) 
				if( FACE & it->second) HideGeometricData(ORIENTATION,FACE);
		}
	}
	
	void Mesh::RestoreGeometricTags()
	{
		for(GeometricData gtype = MEASURE; gtype <= NORMAL; gtype++)
		{
			bool restore = false;
680
			for(ElementType etype = EDGE; etype <= CELL && !restore; etype = NextElementType(etype))
Kirill Terekhov's avatar
Kirill Terekhov committed
681
682
683
684
685
686
				if( HaveGeometricData(gtype,etype) )
					restore = true;
			if( restore )
			{
				switch(gtype)
				{
Kirill Terekhov's avatar
Kirill Terekhov committed
687
688
689
690
				case MEASURE:       measure_tag = GetTag(measure_name);    break;
				case CENTROID:     centroid_tag = GetTag(centroid_name);   break;
				case BARYCENTER: barycenter_tag = GetTag(barycenter_name); break;
				case NORMAL:         normal_tag = GetTag(normal_name);     break;
Kirill Terekhov's avatar
Kirill Terekhov committed
691
692
693
694
				}
			}
		}
	}
695

Kirill Terekhov's avatar
Kirill Terekhov committed
696
697
	void Mesh::RepairGeometricTags()
	{
Kirill Terekhov's avatar
Kirill Terekhov committed
698
		if( HaveTag(measure_name) )
Kirill Terekhov's avatar
Kirill Terekhov committed
699
		{
Kirill Terekhov's avatar
Kirill Terekhov committed
700
			measure_tag = GetTag(measure_name);
Kirill Terekhov's avatar
Kirill Terekhov committed
701
702
703
704
			for(ElementType etype = EDGE; etype <= CELL; etype = NextElementType(etype))
				if( measure_tag.isDefined(etype) && !HaveGeometricData(MEASURE,etype) )
					ShowGeometricData(MEASURE,etype);
		}
Kirill Terekhov's avatar
Kirill Terekhov committed
705
		if( HaveTag(centroid_name) )
Kirill Terekhov's avatar
Kirill Terekhov committed
706
		{
Kirill Terekhov's avatar
Kirill Terekhov committed
707
			centroid_tag = GetTag(centroid_name);
Kirill Terekhov's avatar
Kirill Terekhov committed
708
709
710
711
			for(ElementType etype = EDGE; etype <= CELL; etype = NextElementType(etype))
				if( centroid_tag.isDefined(etype) && !HaveGeometricData(CENTROID,etype) )
					ShowGeometricData(CENTROID,etype);
		}
Kirill Terekhov's avatar
Kirill Terekhov committed
712
		if( HaveTag(barycenter_name) )
Kirill Terekhov's avatar
Kirill Terekhov committed
713
		{
Kirill Terekhov's avatar
Kirill Terekhov committed
714
			barycenter_tag = GetTag(barycenter_name);
Kirill Terekhov's avatar
Kirill Terekhov committed
715
716
717
718
			for(ElementType etype = EDGE; etype <= CELL; etype = NextElementType(etype))
				if( barycenter_tag.isDefined(etype) && !HaveGeometricData(BARYCENTER,etype) )
					ShowGeometricData(BARYCENTER,etype);
		}
Kirill Terekhov's avatar
Kirill Terekhov committed
719
		if( HaveTag(normal_name) )
Kirill Terekhov's avatar
Kirill Terekhov committed
720
		{
Kirill Terekhov's avatar
Kirill Terekhov committed
721
			normal_tag = GetTag(normal_name);
Kirill Terekhov's avatar
Kirill Terekhov committed
722
723
724
725
726
			for(ElementType etype = EDGE; etype <= CELL; etype = NextElementType(etype))
				if( normal_tag.isDefined(etype) && !HaveGeometricData(NORMAL,etype) )
					ShowGeometricData(NORMAL,etype);
		}
	}
Kirill Terekhov's avatar
Kirill Terekhov committed
727
728
729
	
	void Mesh::PrepareGeometricData(GeomParam table)
	{
Kirill Terekhov's avatar
Kirill Terekhov committed
730
		std::sort(&*table.begin(),&*table.end());
Kirill Terekhov's avatar
Kirill Terekhov committed
731
732
733
734
735
736
		for(GeomParam::iterator it = table.begin(); it != table.end(); ++it)
		{
			GeometricData types = it->first;
			ElementType mask = it->second;
			if( types == ORIENTATION )
			{
Kirill Terekhov's avatar
Kirill Terekhov committed
737
				//std::cout << "ORIENTATION" << std::endl;
Kirill Terekhov's avatar
Kirill Terekhov committed
738
				if( mask & FACE )
Kirill Terekhov's avatar
Kirill Terekhov committed
739
				{
740
741
742
					if( HideMarker() )
					{
						MarkerType hm = HideMarker();
Kirill Terekhov's avatar
Kirill Terekhov committed
743
744
745
#if defined(USE_OMP)
#pragma omp parallel for
#endif
746
747
748
749
750
751
752
753
754
755
756
						for(integer e = 0; e < FaceLastLocalID(); ++e) 
						{
							if( isValidElement(FACE,e) )
							{
								HandleType h = ComposeHandle(FACE,e);
								if( !GetMarker(h,hm) )
									Face(this,h)->FixNormalOrientation();
							}
						}
					}
					else
Kirill Terekhov's avatar
Fixes    
Kirill Terekhov committed
757
					{
758
						//std::cout << "Fix orientation" << std::endl;
759
760
761
#if defined(USE_OMP)
#pragma omp parallel for
#endif
762
763
						for(integer e = 0; e < FaceLastLocalID(); ++e) if( isValidElement(FACE,e) )
							Face(this,ComposeHandle(FACE,e))->FixNormalOrientation();
Kirill Terekhov's avatar
Fixes    
Kirill Terekhov committed
764
					}
Kirill Terekhov's avatar
Kirill Terekhov committed
765
				}
Kirill Terekhov's avatar
Kirill Terekhov committed
766
767
768
769
				ShowGeometricData(ORIENTATION,FACE);
			}
			if( types == MEASURE )
			{
Kirill Terekhov's avatar
Kirill Terekhov committed
770
				//std::cout << "MEASURE" << std::endl;
Kirill Terekhov's avatar
Fixes    
Kirill Terekhov committed
771
				for(ElementType etype = EDGE; etype <= CELL; etype = NextElementType(etype))
Kirill Terekhov's avatar
Kirill Terekhov committed
772
773
774
				{
					if( (mask & etype) && !HaveGeometricData(MEASURE,etype))
					{
Kirill Terekhov's avatar
Kirill Terekhov committed
775
						measure_tag = CreateTag(measure_name,DATA_REAL,etype,NONE,1);
776
777
778
						if( HideMarker() )
						{
							MarkerType hm = HideMarker();
Kirill Terekhov's avatar
Kirill Terekhov committed
779
780
781
#if defined(USE_OMP)
#pragma omp parallel for
#endif
782
783
784
785
786
787
788
							for(integer e = 0; e < LastLocalID(etype); ++e) if( isValidElement(etype,e) )
							{
								HandleType h = ComposeHandle(etype,e);
								if( !GetMarker(h,hm) ) GetGeometricData(h,MEASURE,static_cast<Storage::real *>(MGetDenseLink(h,measure_tag)));
							}
						}
						else
Kirill Terekhov's avatar
Kirill Terekhov committed
789
						{
790
791
792
793
794
795
796
797
#if defined(USE_OMP)
#pragma omp parallel for
#endif
							for(integer e = 0; e < LastLocalID(etype); ++e) if( isValidElement(etype,e) )
							{
								HandleType h = ComposeHandle(etype,e);
								GetGeometricData(h,MEASURE,static_cast<Storage::real *>(MGetDenseLink(h,measure_tag)));
							}
Kirill Terekhov's avatar
Kirill Terekhov committed
798
						}
Kirill Terekhov's avatar
Kirill Terekhov committed
799
800
801
802
803
804
						ShowGeometricData(MEASURE,etype);
					}
				}
			}
			if( types == CENTROID )
			{
Kirill Terekhov's avatar
Kirill Terekhov committed
805
				//std::cout << "CENTROID" << std::endl;
Kirill Terekhov's avatar
Fixes    
Kirill Terekhov committed
806
				for(ElementType etype = EDGE; etype <= CELL; etype = NextElementType(etype))
Kirill Terekhov's avatar
Kirill Terekhov committed
807
808
809
				{
					if( (mask & etype) && !HaveGeometricData(CENTROID,etype))
					{
Kirill Terekhov's avatar
Kirill Terekhov committed
810
						centroid_tag = CreateTag(centroid_name,DATA_REAL,etype,NONE,GetDimensions());
811
812
813
						if( HideMarker() )
						{
							MarkerType hm = HideMarker();
Kirill Terekhov's avatar
Kirill Terekhov committed
814
815
816
#if defined(USE_OMP)
#pragma omp parallel for
#endif
817
818
819
820
821
822
823
							for(integer k = 0; k < LastLocalID(etype); ++k) if( isValidElement(etype,k) )
							{
								HandleType h = ComposeHandle(etype,k);
								if( !GetMarker(h,hm) ) GetGeometricData(h,CENTROID,static_cast<Storage::real *>(MGetDenseLink(h,centroid_tag)));
							}
						}
						else
Kirill Terekhov's avatar
Kirill Terekhov committed
824
						{
825
826
827
828
829
830
831
832
#if defined(USE_OMP)
#pragma omp parallel for
#endif
							for(integer k = 0; k < LastLocalID(etype); ++k) if( isValidElement(etype,k) )
							{
								HandleType h = ComposeHandle(etype,k);
								GetGeometricData(h,CENTROID,static_cast<Storage::real *>(MGetDenseLink(h,centroid_tag)));
							}
Kirill Terekhov's avatar
Kirill Terekhov committed
833
						}
Kirill Terekhov's avatar
Kirill Terekhov committed
834
835
836
837
838
839
						ShowGeometricData(CENTROID,etype);
					}
				}
			}
			if( types == BARYCENTER )
			{
Kirill Terekhov's avatar
Kirill Terekhov committed
840
				//std::cout << "BARYCENTER" << std::endl;
Kirill Terekhov's avatar
Fixes    
Kirill Terekhov committed
841
				for(ElementType etype = EDGE; etype <= CELL; etype = NextElementType(etype))
Kirill Terekhov's avatar
Kirill Terekhov committed
842
843
844
				{
					if( (mask & etype) && !HaveGeometricData(BARYCENTER,etype))
					{
Kirill Terekhov's avatar
Kirill Terekhov committed
845
						barycenter_tag = CreateTag(barycenter_name,DATA_REAL,etype,NONE,GetDimensions());
846
847
848
						if( HideMarker() )
						{
							MarkerType hm = HideMarker();
Kirill Terekhov's avatar
Kirill Terekhov committed
849
850
851
#if defined(USE_OMP)
#pragma omp parallel for
#endif
852
853
854
855
856
857
858
							for(integer e = 0; e < LastLocalID(etype); ++e) if( isValidElement(etype,e) )
							{
								HandleType h = ComposeHandle(etype,e);
								if( !GetMarker(h,hm) ) GetGeometricData(h,BARYCENTER,static_cast<Storage::real *>(MGetDenseLink(h,barycenter_tag)));
							}
						}
						else
Kirill Terekhov's avatar
Kirill Terekhov committed
859
						{
860
861
862
863
864
865
866
867
#if defined(USE_OMP)
#pragma omp parallel for
#endif
							for(integer e = 0; e < LastLocalID(etype); ++e) if( isValidElement(etype,e) )
							{
								HandleType h = ComposeHandle(etype,e);
								GetGeometricData(h,BARYCENTER,static_cast<Storage::real *>(MGetDenseLink(h,barycenter_tag)));
							}
Kirill Terekhov's avatar
Kirill Terekhov committed
868
						}
Kirill Terekhov's avatar
Kirill Terekhov committed
869
870
871
872
873
874
						ShowGeometricData(BARYCENTER,etype);
					}
				}	
			}
			if( types == NORMAL )
			{
Kirill Terekhov's avatar
Kirill Terekhov committed
875
				//std::cout << "NORMAL" << std::endl;
Kirill Terekhov's avatar
Fixes    
Kirill Terekhov committed
876
				for(ElementType etype = FACE; etype <= CELL; etype = NextElementType(etype))
Kirill Terekhov's avatar
Kirill Terekhov committed
877
				{
Kirill Terekhov's avatar
Kirill Terekhov committed
878
879
					if( (mask & etype) && !HaveGeometricData(NORMAL,etype))
					{
Kirill Terekhov's avatar
Kirill Terekhov committed
880
						normal_tag = CreateTag(normal_name,DATA_REAL,etype,NONE,GetDimensions());
881
882
883
						if( HideMarker() )
						{
							MarkerType hm = HideMarker();
Kirill Terekhov's avatar
Kirill Terekhov committed
884
885
886
#if defined(USE_OMP)
#pragma omp parallel for
#endif
887
888
889
890
891
892
893
							for(integer e = 0; e < LastLocalID(etype); ++e) if( isValidElement(etype,e) )
							{
								HandleType h = ComposeHandle(etype,e);
								if( !GetMarker(h,hm) ) GetGeometricData(h,NORMAL,static_cast<Storage::real *>(MGetDenseLink(h,normal_tag)));
							}
						}
						else
Kirill Terekhov's avatar
Kirill Terekhov committed
894
						{
895
896
897
898
899
900
901
902
#if defined(USE_OMP)
#pragma omp parallel for
#endif
							for(integer e = 0; e < LastLocalID(etype); ++e) if( isValidElement(etype,e) )
							{
								HandleType h = ComposeHandle(etype,e);
								GetGeometricData(h,NORMAL,static_cast<Storage::real *>(MGetDenseLink(h,normal_tag)));
							}
Kirill Terekhov's avatar
Kirill Terekhov committed
903
						}
Kirill Terekhov's avatar
Kirill Terekhov committed
904
905
						ShowGeometricData(NORMAL,etype);
					}
Kirill Terekhov's avatar
Kirill Terekhov committed
906
				}
Kirill Terekhov's avatar
Kirill Terekhov committed
907
908
909
910
			}
		}
	}
	
Kirill Terekhov's avatar
Kirill Terekhov committed
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
960
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
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
	void Mesh::FacesOrientation(ElementArray<Face> & faces, MarkerType rev)
	{
		//can copy orientation-independent algorithm from
		//incident_matrix.hpp: incident_matrix::compute_measure
		//assume mdim is of size 3 at most
		if( !faces.empty() )
		{
			//real was = *ret/3.0;
			Face cur = faces[0];
			Mesh * mesh = faces.GetMeshLink();
			//firstly, have to figure out orientation of each face
			//mark all faces, so that we can perform adjacency retrival
			MarkerType mrk = mesh->CreatePrivateMarker();
			//MarkerType rev = mesh->CreatePrivateMarker(); //reverse orientation
			faces.SetPrivateMarker(mrk); //0-th face orientation is default
			cur->RemPrivateMarker(mrk);
			Node n1,n2; //to retrive edge
			bool reverse = false; //reverse orientation in considered face
			std::deque< orient_face > stack; //edge and first node and face for visiting
			ElementArray<Edge> edges = cur->getEdges();
			do
			{
				//figure out starting node order
				if( edges[0]->getBeg() == edges[1]->getBeg() ||
				    edges[0]->getBeg() == edges[1]->getEnd() )
				{
					n1 = edges[0]->getEnd();
					n2 = edges[0]->getBeg();
				}
				else
				{
					n1 = edges[0]->getBeg();
					n2 = edges[0]->getEnd();
				}
				//schedule unvisited adjacent faces
				for(unsigned j = 0; j < edges.size(); j++)
				{
					//schedule face adjacent to considered edge
					ElementArray<Face> adjacent = edges[j]->getFaces(mrk);
					assert(adjacent.size() <= 1);
					if( !adjacent.empty() )
					{
						adjacent.RemPrivateMarker(mrk);
						stack.push_back(orient_face(edges[j],reverse ? n2 : n1,adjacent[0]));
					}
					//update edge nodes
					n1 = n2; //current end is new begin
					//find new end
					if( n2 == edges[(j+1)%edges.size()]->getBeg() )
						n2 = edges[(j+1)%edges.size()]->getEnd();
						else
							n2 = edges[(j+1)%edges.size()]->getBeg();
							}
				if( stack.empty() ) break;
				//get entry from stack
				orient_face r = stack.front();
				//remove face from stack
				stack.pop_front();
				//retrive edges for new face
				edges = r.face->getEdges();
				reverse = false;
				//figure out starting node order
				if( edges[0]->getBeg() == edges[1]->getBeg() ||
				    edges[0]->getBeg() == edges[1]->getEnd() )
				{
					n1 = edges[0]->getEnd();
					n2 = edges[0]->getBeg();
				}
				else
				{
					n1 = edges[0]->getBeg();
					n2 = edges[0]->getEnd();
				}
				//find out common edge orientation
				for(unsigned j = 0; j < edges.size(); j++)
				{
					if( edges[j] == r.bridge ) //found the edge
					{
						//reverse ordering on this face
						if( r.first == n1 )
						{
							if( isPrivate(rev) )
								r.face->SetPrivateMarker(rev);
							else
								r.face->SetMarker(rev);
							reverse = true;
						}
						break;
					}
					//update edge nodes
					n1 = n2; //current end is new begin
					//find new end
					if( n2 == edges[(j+1)%edges.size()]->getBeg() )
						n2 = edges[(j+1)%edges.size()]->getEnd();
					else
						n2 = edges[(j+1)%edges.size()]->getBeg();
				}
			} while(true);
			faces.RemPrivateMarker(mrk);
			mesh->ReleasePrivateMarker(mrk);
			//faces.RemPrivateMarker(rev);
		}
	}
	
Kirill Terekhov's avatar
Kirill Terekhov committed
1015
	void Mesh::GetGeometricData(HandleType e, GeometricData type, Storage::real * ret)
Kirill Terekhov's avatar
Kirill Terekhov committed
1016
	{
Kirill Terekhov's avatar
Kirill Terekhov committed
1017
1018
		assert(e != InvalidHandle());
		assert(ret != NULL);
Kirill Terekhov's avatar
Kirill Terekhov committed
1019
1020
1021
1022
		assert(type == MEASURE ||
			   type == CENTROID ||
			   type == BARYCENTER ||
			   type == NORMAL);
Kirill Terekhov's avatar
Kirill Terekhov committed
1023
1024
1025
		ElementType etype = GetHandleElementType(e);
		integer edim = Element::GetGeometricDimension(GetGeometricType(e));
		integer mdim = GetDimensions();
Kirill Terekhov's avatar
Kirill Terekhov committed
1026
1027
1028
1029
1030
		switch(type)
		{
			case MEASURE:
			if( HaveGeometricData(MEASURE,etype) )
			{
Kirill Terekhov's avatar
Kirill Terekhov committed
1031
				*ret = static_cast<Storage::real *>(MGetDenseLink(e,measure_tag))[0];
Kirill Terekhov's avatar
Kirill Terekhov committed
1032
1033
1034
1035
1036
1037
1038
1039
1040
				//~ if( isnan(*ret) || fabs(*ret) < 1e-15  ) throw -1;
			}
			else
			{
				switch(edim)
				{
					case 0: *ret = 0; break;
					case 1: //length of edge
					{
Kirill Terekhov's avatar
Fixes    
Kirill Terekhov committed
1041
						ElementArray<Node> nodes = Element(this,e)->getNodes();
Kirill Terekhov's avatar
Kirill Terekhov committed
1042
1043
						if( nodes.size() > 1 )
						{
Kirill Terekhov's avatar
Kirill Terekhov committed
1044
1045
1046
1047
							real c[3] = {0,0,0};
							real_array v0 = nodes[0].Coords();
							real_array v1 = nodes[1].Coords();
							vec_diff(v0.data(),v1.data(),c,mdim);
Kirill Terekhov's avatar
Kirill Terekhov committed
1048
1049
1050
							*ret = vec_len(c,mdim);
						}
						else *ret = 0;
Kirill Terekhov's avatar
Kirill Terekhov committed
1051
1052
1053
1054
1055
						//~ if( isnan(*ret) || fabs(*ret) < 1e-15  ) throw -1;
						break;
					}
					case 2: //area of face
					{
Kirill Terekhov's avatar
Fixes    
Kirill Terekhov committed
1056
						ElementArray<Node> nodes = Element(this,e)->getNodes();
Kirill Terekhov's avatar
Kirill Terekhov committed
1057
						if( nodes.size() > 2 )
Kirill Terekhov's avatar
Kirill Terekhov committed
1058
						{
Kirill Terekhov's avatar
Kirill Terekhov committed
1059
							*ret = 0;
1060
							real nt[3] = { 0,0,0 }, l1[3] = { 0,0,0 }, l2[3] = { 0,0,0 }, n0[3] = { 0,0,0 };// , ss, at;
1061
1062
1063
							real_array v0, v1, v2;
							v0 = nodes[0].Coords();
							for(int i = 1; i < (int)nodes.size()-1; i++)
1064
1065
							{
								v1 = nodes[i].Coords();
1066
1067
1068
								v2 = nodes[i+1].Coords();
								vec_diff(v1,v0,l1,mdim);
								vec_diff(v2,v0,l2,mdim);
1069
1070
1071
1072
								vec_cross_product(l1,l2,nt);
								for(int q = 0; q < 3; ++q)
									n0[q] += nt[q]*0.5;
							}
1073
							*ret = vec_len(n0,3);
Kirill Terekhov's avatar
Kirill Terekhov committed
1074
							//code below is not really needed
1075
1076
							/*
							for(int i = 1; i < (int)nodes.size()-1; i++)
Kirill Terekhov's avatar
Kirill Terekhov committed
1077
							{
Kirill Terekhov's avatar
Kirill Terekhov committed
1078
								v1 = nodes[i].Coords();
1079
1080
1081
								v2 = nodes[i+1].Coords();
								vec_diff(v1,v0,l1,mdim);
								vec_diff(v2,v0,l2,mdim);
Kirill Terekhov's avatar
Kirill Terekhov committed
1082
								vec_cross_product(l1,l2,nt);
1083
1084
								for(int q = 0; q < 3; ++q) 
									nt[q] *= 0.5;
Kirill Terekhov's avatar
Kirill Terekhov committed
1085
								ss = vec_dot_product(n0,nt,3);
1086
								if( ss ) ss /= fabs(ss);
1087
1088
								at = sqrt(vec_dot_product(nt,nt,3))*ss;
								*ret += at;
Kirill Terekhov's avatar
Kirill Terekhov committed
1089
							}
1090
							*/
1091
							if( *ret != *ret ) std::cout << "area is nan" << std::endl;
Kirill Terekhov's avatar
Kirill Terekhov committed
1092
							*ret = fabs(*ret);
Kirill Terekhov's avatar
Kirill Terekhov committed
1093
						} else *ret = 0;
Kirill Terekhov's avatar
Kirill Terekhov committed
1094
1095
1096
1097
1098
						//~ if( isnan(*ret) || fabs(*ret) < 1e-15  ) throw -1;
						break;
					}
					case 3: //volume of cell
					{
1099
1100
						//bool print = false;
//redo:
Kirill Terekhov's avatar
Kirill Terekhov committed
1101
1102
						Cell me = Cell(this,e);
						ElementArray<Face> faces = me->getFaces();
1103
						bool ornt = true;//!HaveGeometricData(ORIENTATION,FACE);
Kirill Terekhov's avatar
Kirill Terekhov committed
1104
1105
						MarkerType rev = 0;
						if( ornt )
Kirill Terekhov's avatar
Kirill Terekhov committed
1106
						{
Kirill Terekhov's avatar
Kirill Terekhov committed
1107
1108
							rev = CreatePrivateMarker();
							FacesOrientation(faces,rev);
Kirill Terekhov's avatar
Kirill Terekhov committed
1109
						}
1110
						real vol = 0, a, at, volp;
Kirill Terekhov's avatar
Kirill Terekhov committed
1111
						real x[3] = {0,0,0}, n0[3] = {0,0,0}, s, ss;
Kirill Terekhov's avatar
Kirill Terekhov committed
1112
						real l1[3] = {0,0,0}, l2[3] = {0,0,0};
1113
						real nt[3] = {0,0,0};
1114
						real vc[3] = {0,0,0};
1115
						//me.Centroid(cx);
1116
						//if( print ) std::cout << "cx: " << cx[0] << " " << cx[1] << " " << cx[2] << std::endl;
Kirill Terekhov's avatar
Kirill Terekhov committed
1117
						for(unsigned j = 0; j < faces.size(); j++)
Kirill Terekhov's avatar
Kirill Terekhov committed
1118
						{
Kirill Terekhov's avatar
Kirill Terekhov committed
1119
1120
1121
1122
1123
1124
1125
							//compute normal to face
							ElementArray<Node> nodes = faces[j].getNodes();
							if( ornt )
								s = faces[j].GetPrivateMarker(rev) ? -1.0 : 1.0;
							else
								s = faces[j].FaceOrientedOutside(me) ? 1.0 : -1.0;
							x[0] = x[1] = x[2] = 0;
1126
							n0[0] = n0[1] = n0[2] = 0;
1127
							vc[0] = vc[1] = vc[2] = 0;
Kirill Terekhov's avatar
Kirill Terekhov committed
1128
							a = 0;
1129
1130
							real_array v0 = nodes[0].Coords(), v1, v2;
							for(int i = 1; i < (int)nodes.size()-1; i++)
1131
1132
							{
								v1 = nodes[i].Coords();
1133
1134
1135
								v2 = nodes[i+1].Coords();
								vec_diff(v1,v0,l1,mdim);
								vec_diff(v2,v0,l2,mdim);
1136
1137
1138
1139
								vec_cross_product(l1,l2,nt);
								for(int q = 0; q < 3; ++q)
									n0[q] += nt[q]*0.5;
							}
1140
							for(int i = 1; i < (int)nodes.size()-1; i++)
Kirill Terekhov's avatar
Kirill Terekhov committed
1141
							{
1142
1143
1144
1145
								v1 = nodes[i].Coords();
								v2 = nodes[i+1].Coords();
								vec_diff(v1,v0,l1,mdim);
								vec_diff(v2,v0,l2,mdim);
Kirill Terekhov's avatar
Kirill Terekhov committed
1146
								vec_cross_product(l1,l2,nt);
1147
1148
								for(int q = 0; q < 3; ++q) 
									nt[q] *= 0.5;
Kirill Terekhov's avatar
Kirill Terekhov committed
1149
								ss = vec_dot_product(n0,nt,3);
1150
1151
								if( ss ) 
									ss /= fabs(ss);
Kirill Terekhov's avatar
Kirill Terekhov committed
1152
								at = sqrt(vec_dot_product(nt,nt,3))*ss;
1153
								//same as faces[j].Barycenter(x)
Kirill Terekhov's avatar
Kirill Terekhov committed
1154
								for(int q = 0; q < 3; ++q)
1155
									x[q] += at*(v0[q]+v1[q]+v2[q])/3.0;
Kirill Terekhov's avatar
Kirill Terekhov committed
1156
								a += at;
Kirill Terekhov's avatar
Kirill Terekhov committed
1157
							}
1158
1159
1160
							if( a )
							{
								for(int q = 0; q < 3; ++q) 
1161
									x[q] = x[q]/a;
1162
							}
1163
							else Element(this,e).Centroid(x);
Kirill Terekhov's avatar
Kirill Terekhov committed
1164
							volp = vec_dot_product(x,n0,3) / 3.0;
1165
							vol += s*volp;
Kirill Terekhov's avatar
Kirill Terekhov committed
1166
1167
1168
1169
						}
						if( ornt )
						{
							if( vol < 0.0 ) vol = -vol;
Kirill Terekhov's avatar
Kirill Terekhov committed
1170
							faces.RemPrivateMarker(rev);
Kirill Terekhov's avatar
Kirill Terekhov committed
1171
							ReleasePrivateMarker(rev);
Kirill Terekhov's avatar
Kirill Terekhov committed
1172
						}
1173
						*ret = vol;
Kirill Terekhov's avatar
Kirill Terekhov committed
1174
1175
1176
1177
1178
1179
1180
						break;
					}
				}
			}
			//~ if( isnan(*ret) || fabs(*ret) < 1e-15  ) throw -1;
			break;
			case CENTROID:
Kirill Terekhov's avatar
Kirill Terekhov committed
1181
1182
1183
				if(etype == NODE )
					memcpy(ret,MGetDenseLink(e,CoordsTag()),sizeof(real)*mdim);
				else if(HaveGeometricData(CENTROID,etype))
Kirill Terekhov's avatar
Kirill Terekhov committed
1184
				{
Kirill Terekhov's avatar
Kirill Terekhov committed
1185
1186
1187
1188
1189
1190
1191
					memcpy(ret,MGetDenseLink(e,centroid_tag),sizeof(real)*mdim);
				}
				else
				{
					ElementArray<Node> nodes = Element(this,e).getNodes();
					memset(ret,0,sizeof(real)*mdim);
					for(unsigned k = 0; k < nodes.size(); ++k)
Kirill Terekhov's avatar
Fixes    
Kirill Terekhov committed
1192
					{
Kirill Terekhov's avatar
Kirill Terekhov committed
1193
1194
						for(int q = 0; q < mdim; ++q)
							ret[q] += nodes[k].Coords()[q];
Kirill Terekhov's avatar
Fixes    
Kirill Terekhov committed
1195
					}
Kirill Terekhov's avatar
Kirill Terekhov committed
1196
1197
					for(int q = 0; q < mdim; ++q)
						ret[q] /= (real)nodes.size();
Kirill Terekhov's avatar
Kirill Terekhov committed
1198
1199
1200
				}
			break;
			case BARYCENTER:
Kirill Terekhov's avatar
Kirill Terekhov committed
1201
			if(etype == NODE )
Kirill Terekhov's avatar
Kirill Terekhov committed
1202
				memcpy(ret,MGetDenseLink(e,CoordsTag()),sizeof(real)*mdim);
Kirill Terekhov's avatar
Kirill Terekhov committed
1203
			else if(HaveGeometricData(BARYCENTER,etype))
Kirill Terekhov's avatar
Kirill Terekhov committed
1204
			{
Kirill Terekhov's avatar
Kirill Terekhov committed
1205
				memcpy(ret,MGetDenseLink(e,barycenter_tag),sizeof(real)*mdim);
Kirill Terekhov's avatar
Kirill Terekhov committed
1206
			}
Kirill Terekhov's avatar
Kirill Terekhov committed
1207
1208
1209
1210
1211
			else
			{
				memset(ret,0,sizeof(real)*mdim);
				if( edim == 1 )
				{
Kirill Terekhov's avatar
Kirill Terekhov committed
1212
					ElementArray<Node> n = Element(this,e)->getNodes();
Kirill Terekhov's avatar
Kirill Terekhov committed
1213
1214
					if( n.size() == 2 )
					{
Kirill Terekhov's avatar
Kirill Terekhov committed
1215
1216
1217
1218
						real_array v0 = n[0].Coords();
						real_array v1 = n[1].Coords();
						for(integer j = 0; j < dim; j++)
							ret[j] = (v0[j] + v1[j])*0.5;
Kirill Terekhov's avatar
Kirill Terekhov committed
1219
1220
1221
					}
					else if( n.size() == 1 )
					{
Kirill Terekhov's avatar
Kirill Terekhov committed
1222
1223
						real_array v0 = n[0].Coords();
						for(integer j = 0; j < dim; j++) ret[j] = v0[j];
Kirill Terekhov's avatar
Kirill Terekhov committed
1224
					}
Kirill Terekhov's avatar
Kirill Terekhov committed
1225
1226
1227
				}
				else if( edim == 2 )
				{
Kirill Terekhov's avatar
Kirill Terekhov committed
1228
					ElementArray<Node> nodes = Element(this,e)->getNodes();
Kirill Terekhov's avatar
Kirill Terekhov committed
1229
					if( nodes.size() > 2 )
Kirill Terekhov's avatar
Kirill Terekhov committed
1230
					{
Kirill Terekhov's avatar
Kirill Terekhov committed
1231
1232
						*ret = 0;
						real nt[3] = {0,0,0}, l1[3] = {0,0,0}, l2[3] = {0,0,0};
1233
						real c[3] = {0,0,0}, n0[3] = {0,0,0}, ss;
1234
						real_array v0 = nodes[0].Coords(), v1, v2;
1235
						for(int i = 1; i < (int)nodes.size()-1; i++)
1236
1237
						{
							v1 = nodes[i].Coords();
1238
1239
1240
							v2 = nodes[i+1].Coords();
							vec_diff(v1,v0,l1,mdim);
							vec_diff(v2,v0,l2,mdim);
1241
1242
1243
1244
							vec_cross_product(l1,l2,nt);
							for(int q = 0; q < 3; ++q)
								n0[q] += nt[q]*0.5;
						}
Kirill Terekhov's avatar
Kirill Terekhov committed
1245
						real a = 0, at;
1246
						for(int i = 1; i < (int)nodes.size()-1; i++)
Kirill Terekhov's avatar
Kirill Terekhov committed
1247
						{
1248
1249
1250
1251
							v1 = nodes[i].Coords();
							v2 = nodes[i+1].Coords();
							vec_diff(v1,v0,l1,mdim);
							vec_diff(v2,v0,l2,mdim);
Kirill Terekhov's avatar
Kirill Terekhov committed
1252
							vec_cross_product(l1,l2,nt);
1253
1254
							for(int q = 0; q < 3; ++q) 
								nt[q]