1 // SMESH SMESH : implementaion of SMESH idl descriptions
3 // Copyright (C) 2003 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
4 // CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
6 // This library is free software; you can redistribute it and/or
7 // modify it under the terms of the GNU Lesser General Public
8 // License as published by the Free Software Foundation; either
9 // version 2.1 of the License.
11 // This library is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 // Lesser General Public License for more details.
16 // You should have received a copy of the GNU Lesser General Public
17 // License along with this library; if not, write to the Free Software
18 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
24 // File : StdMeshers_Hexa_3D.cxx
25 // Moved here from SMESH_Hexa_3D.cxx
26 // Author : Paul RASCLE, EDF
30 #include "StdMeshers_Hexa_3D.hxx"
31 #include "StdMeshers_Quadrangle_2D.hxx"
32 #include "StdMeshers_FaceSide.hxx"
33 #include "StdMeshers_Penta_3D.hxx"
34 #include "StdMeshers_Prism_3D.hxx"
36 #include "SMESH_Gen.hxx"
37 #include "SMESH_Mesh.hxx"
38 #include "SMESH_subMesh.hxx"
39 #include "SMESH_Comment.hxx"
41 #include "SMDS_MeshElement.hxx"
42 #include "SMDS_MeshNode.hxx"
43 #include "SMDS_FacePosition.hxx"
44 #include "SMDS_VolumeTool.hxx"
45 #include "SMDS_VolumeOfNodes.hxx"
48 #include <TopExp_Explorer.hxx>
49 #include <TopTools_IndexedDataMapOfShapeListOfShape.hxx>
50 #include <TopTools_ListIteratorOfListOfShape.hxx>
51 #include <TopTools_ListOfShape.hxx>
53 #include <gp_Pnt2d.hxx>
55 #include "utilities.h"
56 #include "Utils_ExceptHandlers.hxx"
58 typedef SMESH_Comment TComm;
62 static SMESH_ComputeErrorPtr ComputePentahedralMesh(SMESH_Mesh &, const TopoDS_Shape &);
64 //=============================================================================
68 //=============================================================================
70 StdMeshers_Hexa_3D::StdMeshers_Hexa_3D(int hypId, int studyId, SMESH_Gen * gen)
71 :SMESH_3D_Algo(hypId, studyId, gen)
73 MESSAGE("StdMeshers_Hexa_3D::StdMeshers_Hexa_3D");
75 _shapeType = (1 << TopAbs_SHELL) | (1 << TopAbs_SOLID); // 1 bit /shape type
78 //=============================================================================
82 //=============================================================================
84 StdMeshers_Hexa_3D::~StdMeshers_Hexa_3D()
86 MESSAGE("StdMeshers_Hexa_3D::~StdMeshers_Hexa_3D");
89 //================================================================================
91 * \brief Clear fields and return the argument
92 * \param res - the value to return
93 * \retval bool - the argument value
95 //================================================================================
97 bool StdMeshers_Hexa_3D::ClearAndReturn(FaceQuadStruct* theQuads[6], const bool res)
99 for (int i = 0; i < 6; i++) {
107 //=============================================================================
111 //=============================================================================
113 bool StdMeshers_Hexa_3D::CheckHypothesis
115 const TopoDS_Shape& aShape,
116 SMESH_Hypothesis::Hypothesis_Status& aStatus)
118 // check nb of faces in the shape
120 aStatus = SMESH_Hypothesis::HYP_BAD_GEOMETRY;
122 for (TopExp_Explorer exp(aShape, TopAbs_FACE); exp.More(); exp.Next())
128 aStatus = SMESH_Hypothesis::HYP_OK;
132 //=======================================================================
134 //purpose : return i,j of the node
135 //=======================================================================
137 static bool findIJ (const SMDS_MeshNode* node, const FaceQuadStruct * quad, int& I, int& J)
140 const SMDS_FacePosition* fpos =
141 static_cast<const SMDS_FacePosition*>(node->GetPosition().get());
142 if ( ! fpos ) return false;
143 gp_Pnt2d uv( fpos->GetUParameter(), fpos->GetVParameter() );
145 double minDist = DBL_MAX;
146 int nbhoriz = Min(quad->side[0]->NbPoints(), quad->side[2]->NbPoints());
147 int nbvertic = Min(quad->side[1]->NbPoints(), quad->side[3]->NbPoints());
148 for (int i = 1; i < nbhoriz - 1; i++) {
149 for (int j = 1; j < nbvertic - 1; j++) {
150 int ij = j * nbhoriz + i;
151 gp_Pnt2d uv2( quad->uv_grid[ij].u, quad->uv_grid[ij].v );
152 double dist = uv.SquareDistance( uv2 );
153 if ( dist < minDist ) {
164 //=============================================================================
166 * Hexahedron mesh on hexaedron like form
167 * -0. - shape and face mesh verification
168 * -1. - identify faces and vertices of the "cube"
169 * -2. - Algorithm from:
170 * "Application de l'interpolation transfinie à la création de maillages
171 * C0 ou G1 continus sur des triangles, quadrangles, tetraedres, pentaedres
172 * et hexaedres déformés."
173 * Alain PERONNET - 8 janvier 1999
175 //=============================================================================
177 bool StdMeshers_Hexa_3D::Compute(SMESH_Mesh & aMesh,
178 const TopoDS_Shape & aShape)// throw(SALOME_Exception)
180 // PAL14921. Enable catching std::bad_alloc and Standard_OutOfMemory outside
181 //Unexpect aCatch(SalomeException);
182 MESSAGE("StdMeshers_Hexa_3D::Compute");
183 SMESHDS_Mesh * meshDS = aMesh.GetMeshDS();
185 // 0. - shape and face mesh verification
186 // 0.1 - shape must be a solid (or a shell) with 6 faces
188 vector < SMESH_subMesh * >meshFaces;
189 for (TopExp_Explorer exp(aShape, TopAbs_FACE); exp.More(); exp.Next()) {
190 SMESH_subMesh *aSubMesh = aMesh.GetSubMeshContaining(exp.Current());
192 meshFaces.push_back(aSubMesh);
194 if (meshFaces.size() != 6)
195 return error(COMPERR_BAD_SHAPE, TComm(meshFaces.size())<<" instead of 6 faces in a block");
197 // 0.2 - is each face meshed with Quadrangle_2D? (so, with a wire of 4 edges)
199 // tool for working with quadratic elements
200 SMESH_MesherHelper aTool (aMesh);
201 _quadraticMesh = aTool.IsQuadraticSubMesh(aShape);
204 typedef struct cubeStruct
214 faceQuadStruct* quad_X0;
215 faceQuadStruct* quad_X1;
216 faceQuadStruct* quad_Y0;
217 faceQuadStruct* quad_Y1;
218 faceQuadStruct* quad_Z0;
219 faceQuadStruct* quad_Z1;
220 Point3DStruct* np; // normalised 3D coordinates
226 FaceQuadStruct* aQuads[6];
227 for (int i = 0; i < 6; i++)
230 for (int i = 0; i < 6; i++)
232 TopoDS_Shape aFace = meshFaces[i]->GetSubShape();
233 SMESH_Algo *algo = _gen->GetAlgo(aMesh, aFace);
234 string algoName = algo->GetName();
235 bool isAllQuad = false;
236 if (algoName == "Quadrangle_2D") {
237 SMESHDS_SubMesh * sm = meshDS->MeshElements( aFace );
240 SMDS_ElemIteratorPtr eIt = sm->GetElements();
241 while ( isAllQuad && eIt->more() ) {
242 const SMDS_MeshElement* elem = eIt->next();
243 isAllQuad = ( elem->NbNodes()==4 ||(_quadraticMesh && elem->NbNodes()==8) );
248 SMESH_ComputeErrorPtr err = ComputePentahedralMesh(aMesh, aShape);
249 return ClearAndReturn( aQuads, error(err));
251 StdMeshers_Quadrangle_2D *quadAlgo =
252 dynamic_cast < StdMeshers_Quadrangle_2D * >(algo);
255 aQuads[i] = quadAlgo->CheckAnd2Dcompute(aMesh, aFace, _quadraticMesh);
257 return error( quadAlgo->GetComputeError());
260 catch(SALOME_Exception & S_ex) {
261 return ClearAndReturn( aQuads, error(COMPERR_SLM_EXCEPTION,TComm(S_ex.what()) <<
262 " Raised by StdMeshers_Quadrangle_2D "
263 " on face #" << meshDS->ShapeToIndex( aFace )));
266 // 0.2.1 - number of points on the opposite edges must be the same
267 if (aQuads[i]->side[0]->NbPoints() != aQuads[i]->side[2]->NbPoints() ||
268 aQuads[i]->side[1]->NbPoints() != aQuads[i]->side[3]->NbPoints()
269 /*aQuads[i]->side[0]->NbEdges() != 1 ||
270 aQuads[i]->side[1]->NbEdges() != 1 ||
271 aQuads[i]->side[2]->NbEdges() != 1 ||
272 aQuads[i]->side[3]->NbEdges() != 1*/) {
273 MESSAGE("different number of points on the opposite edges of face " << i);
274 // Try to go into penta algorithm 'cause it has been improved.
275 SMESH_ComputeErrorPtr err = ComputePentahedralMesh(aMesh, aShape);
276 return ClearAndReturn( aQuads, error(err));
280 // 1. - identify faces and vertices of the "cube"
281 // 1.1 - ancestor maps vertex->edges in the cube
283 TopTools_IndexedDataMapOfShapeListOfShape MS;
284 TopExp::MapShapesAndAncestors(aShape, TopAbs_VERTEX, TopAbs_EDGE, MS);
286 // 1.2 - first face is choosen as face Y=0 of the unit cube
288 const TopoDS_Shape & aFace = meshFaces[0]->GetSubShape();
289 const TopoDS_Face & F = TopoDS::Face(aFace);
291 // 1.3 - identify the 4 vertices of the face Y=0: V000, V100, V101, V001
293 aCube.V000 = aQuads[0]->side[0]->FirstVertex(); // will be (0,0,0) on the unit cube
294 aCube.V100 = aQuads[0]->side[0]->LastVertex(); // will be (1,0,0) on the unit cube
295 aCube.V001 = aQuads[0]->side[2]->FirstVertex(); // will be (0,0,1) on the unit cube
296 aCube.V101 = aQuads[0]->side[2]->LastVertex(); // will be (1,0,1) on the unit cube
298 TopTools_IndexedMapOfShape MV0;
299 TopExp::MapShapes(F, TopAbs_VERTEX, MV0);
301 aCube.V010 = OppositeVertex( aCube.V000, MV0, aQuads);
302 aCube.V110 = OppositeVertex( aCube.V100, MV0, aQuads);
303 aCube.V011 = OppositeVertex( aCube.V001, MV0, aQuads);
304 aCube.V111 = OppositeVertex( aCube.V101, MV0, aQuads);
306 // 1.6 - find remaining faces given 4 vertices
309 aCube.quad_Y0 = aQuads[_indY0];
311 int _indY1 = GetFaceIndex(aMesh, aShape, meshFaces,
312 aCube.V010, aCube.V011, aCube.V110, aCube.V111);
313 aCube.quad_Y1 = aQuads[_indY1];
315 int _indZ0 = GetFaceIndex(aMesh, aShape, meshFaces,
316 aCube.V000, aCube.V010, aCube.V100, aCube.V110);
317 aCube.quad_Z0 = aQuads[_indZ0];
319 int _indZ1 = GetFaceIndex(aMesh, aShape, meshFaces,
320 aCube.V001, aCube.V011, aCube.V101, aCube.V111);
321 aCube.quad_Z1 = aQuads[_indZ1];
323 int _indX0 = GetFaceIndex(aMesh, aShape, meshFaces,
324 aCube.V000, aCube.V001, aCube.V010, aCube.V011);
325 aCube.quad_X0 = aQuads[_indX0];
327 int _indX1 = GetFaceIndex(aMesh, aShape, meshFaces,
328 aCube.V100, aCube.V101, aCube.V110, aCube.V111);
329 aCube.quad_X1 = aQuads[_indX1];
331 // 1.7 - get convertion coefs from face 2D normalized to 3D normalized
333 Conv2DStruct cx0; // for face X=0
334 Conv2DStruct cx1; // for face X=1
340 GetConv2DCoefs(*aCube.quad_X0, meshFaces[_indX0]->GetSubShape(),
341 aCube.V000, aCube.V010, aCube.V011, aCube.V001, cx0);
342 GetConv2DCoefs(*aCube.quad_X1, meshFaces[_indX1]->GetSubShape(),
343 aCube.V100, aCube.V110, aCube.V111, aCube.V101, cx1);
344 GetConv2DCoefs(*aCube.quad_Y0, meshFaces[_indY0]->GetSubShape(),
345 aCube.V000, aCube.V100, aCube.V101, aCube.V001, cy0);
346 GetConv2DCoefs(*aCube.quad_Y1, meshFaces[_indY1]->GetSubShape(),
347 aCube.V010, aCube.V110, aCube.V111, aCube.V011, cy1);
348 GetConv2DCoefs(*aCube.quad_Z0, meshFaces[_indZ0]->GetSubShape(),
349 aCube.V000, aCube.V100, aCube.V110, aCube.V010, cz0);
350 GetConv2DCoefs(*aCube.quad_Z1, meshFaces[_indZ1]->GetSubShape(),
351 aCube.V001, aCube.V101, aCube.V111, aCube.V011, cz1);
353 // 1.8 - create a 3D structure for normalized values
355 int nbx = aCube.quad_Z0->side[0]->NbPoints();
356 if (cz0.a1 == 0.) nbx = aCube.quad_Z0->side[1]->NbPoints();
358 int nby = aCube.quad_X0->side[0]->NbPoints();
359 if (cx0.a1 == 0.) nby = aCube.quad_X0->side[1]->NbPoints();
361 int nbz = aCube.quad_Y0->side[0]->NbPoints();
362 if (cy0.a1 != 0.) nbz = aCube.quad_Y0->side[1]->NbPoints();
364 int i1, j1, nbxyz = nbx * nby * nbz;
365 Point3DStruct *np = new Point3DStruct[nbxyz];
367 // 1.9 - store node indexes of faces
370 const TopoDS_Face & F = TopoDS::Face(meshFaces[_indX0]->GetSubShape());
372 faceQuadStruct *quad = aCube.quad_X0;
373 int i = 0; // j = x/face , k = y/face
374 int nbdown = quad->side[0]->NbPoints();
375 int nbright = quad->side[1]->NbPoints();
377 SMDS_NodeIteratorPtr itf= aMesh.GetSubMesh(F)->GetSubMeshDS()->GetNodes();
380 const SMDS_MeshNode * node = itf->next();
381 if(aTool.IsMedium(node))
383 if ( !findIJ( node, quad, i1, j1 ))
384 return ClearAndReturn( aQuads, false );
385 int ij1 = j1 * nbdown + i1;
386 quad->uv_grid[ij1].node = node;
389 for (int i1 = 0; i1 < nbdown; i1++)
390 for (int j1 = 0; j1 < nbright; j1++) {
391 int ij1 = j1 * nbdown + i1;
392 int j = cx0.ia * i1 + cx0.ib * j1 + cx0.ic; // j = x/face
393 int k = cx0.ja * i1 + cx0.jb * j1 + cx0.jc; // k = y/face
394 int ijk = k * nbx * nby + j * nbx + i;
395 //MESSAGE(" "<<ij1<<" "<<i<<" "<<j<<" "<<ijk);
396 np[ijk].node = quad->uv_grid[ij1].node;
397 //SCRUTE(np[ijk].nodeId);
402 const TopoDS_Face & F = TopoDS::Face(meshFaces[_indX1]->GetSubShape());
404 SMDS_NodeIteratorPtr itf= aMesh.GetSubMesh(F)->GetSubMeshDS()->GetNodes();
406 faceQuadStruct *quad = aCube.quad_X1;
407 int i = nbx - 1; // j = x/face , k = y/face
408 int nbdown = quad->side[0]->NbPoints();
409 int nbright = quad->side[1]->NbPoints();
412 const SMDS_MeshNode * node = itf->next();
413 if(aTool.IsMedium(node))
415 if ( !findIJ( node, quad, i1, j1 ))
416 return ClearAndReturn( aQuads, false );
417 int ij1 = j1 * nbdown + i1;
418 quad->uv_grid[ij1].node = node;
421 for (int i1 = 0; i1 < nbdown; i1++)
422 for (int j1 = 0; j1 < nbright; j1++) {
423 int ij1 = j1 * nbdown + i1;
424 int j = cx1.ia * i1 + cx1.ib * j1 + cx1.ic; // j = x/face
425 int k = cx1.ja * i1 + cx1.jb * j1 + cx1.jc; // k = y/face
426 int ijk = k * nbx * nby + j * nbx + i;
427 //MESSAGE(" "<<ij1<<" "<<i<<" "<<j<<" "<<ijk);
428 np[ijk].node = quad->uv_grid[ij1].node;
429 //SCRUTE(np[ijk].nodeId);
434 const TopoDS_Face & F = TopoDS::Face(meshFaces[_indY0]->GetSubShape());
436 SMDS_NodeIteratorPtr itf= aMesh.GetSubMesh(F)->GetSubMeshDS()->GetNodes();
438 faceQuadStruct *quad = aCube.quad_Y0;
439 int j = 0; // i = x/face , k = y/face
440 int nbdown = quad->side[0]->NbPoints();
441 int nbright = quad->side[1]->NbPoints();
444 const SMDS_MeshNode * node = itf->next();
445 if(aTool.IsMedium(node))
447 if ( !findIJ( node, quad, i1, j1 ))
448 return ClearAndReturn( aQuads, false );
449 int ij1 = j1 * nbdown + i1;
450 quad->uv_grid[ij1].node = node;
453 for (int i1 = 0; i1 < nbdown; i1++)
454 for (int j1 = 0; j1 < nbright; j1++) {
455 int ij1 = j1 * nbdown + i1;
456 int i = cy0.ia * i1 + cy0.ib * j1 + cy0.ic; // i = x/face
457 int k = cy0.ja * i1 + cy0.jb * j1 + cy0.jc; // k = y/face
458 int ijk = k * nbx * nby + j * nbx + i;
459 //MESSAGE(" "<<ij1<<" "<<i<<" "<<j<<" "<<ijk);
460 np[ijk].node = quad->uv_grid[ij1].node;
461 //SCRUTE(np[ijk].nodeId);
466 const TopoDS_Face & F = TopoDS::Face(meshFaces[_indY1]->GetSubShape());
468 SMDS_NodeIteratorPtr itf= aMesh.GetSubMesh(F)->GetSubMeshDS()->GetNodes();
470 faceQuadStruct *quad = aCube.quad_Y1;
471 int j = nby - 1; // i = x/face , k = y/face
472 int nbdown = quad->side[0]->NbPoints();
473 int nbright = quad->side[1]->NbPoints();
476 const SMDS_MeshNode * node = itf->next();
477 if(aTool.IsMedium(node))
479 if ( !findIJ( node, quad, i1, j1 ))
480 return ClearAndReturn( aQuads, false );
481 int ij1 = j1 * nbdown + i1;
482 quad->uv_grid[ij1].node = node;
485 for (int i1 = 0; i1 < nbdown; i1++)
486 for (int j1 = 0; j1 < nbright; j1++) {
487 int ij1 = j1 * nbdown + i1;
488 int i = cy1.ia * i1 + cy1.ib * j1 + cy1.ic; // i = x/face
489 int k = cy1.ja * i1 + cy1.jb * j1 + cy1.jc; // k = y/face
490 int ijk = k * nbx * nby + j * nbx + i;
491 //MESSAGE(" "<<ij1<<" "<<i<<" "<<j<<" "<<ijk);
492 np[ijk].node = quad->uv_grid[ij1].node;
493 //SCRUTE(np[ijk].nodeId);
498 const TopoDS_Face & F = TopoDS::Face(meshFaces[_indZ0]->GetSubShape());
500 SMDS_NodeIteratorPtr itf= aMesh.GetSubMesh(F)->GetSubMeshDS()->GetNodes();
502 faceQuadStruct *quad = aCube.quad_Z0;
503 int k = 0; // i = x/face , j = y/face
504 int nbdown = quad->side[0]->NbPoints();
505 int nbright = quad->side[1]->NbPoints();
508 const SMDS_MeshNode * node = itf->next();
509 if(aTool.IsMedium(node))
511 if ( !findIJ( node, quad, i1, j1 ))
512 return ClearAndReturn( aQuads, false );
513 int ij1 = j1 * nbdown + i1;
514 quad->uv_grid[ij1].node = node;
517 for (int i1 = 0; i1 < nbdown; i1++)
518 for (int j1 = 0; j1 < nbright; j1++) {
519 int ij1 = j1 * nbdown + i1;
520 int i = cz0.ia * i1 + cz0.ib * j1 + cz0.ic; // i = x/face
521 int j = cz0.ja * i1 + cz0.jb * j1 + cz0.jc; // j = y/face
522 int ijk = k * nbx * nby + j * nbx + i;
523 //MESSAGE(" "<<ij1<<" "<<i<<" "<<j<<" "<<ijk);
524 np[ijk].node = quad->uv_grid[ij1].node;
525 //SCRUTE(np[ijk].nodeId);
530 const TopoDS_Face & F = TopoDS::Face(meshFaces[_indZ1]->GetSubShape());
532 SMDS_NodeIteratorPtr itf= aMesh.GetSubMesh(F)->GetSubMeshDS()->GetNodes();
534 faceQuadStruct *quad = aCube.quad_Z1;
535 int k = nbz - 1; // i = x/face , j = y/face
536 int nbdown = quad->side[0]->NbPoints();
537 int nbright = quad->side[1]->NbPoints();
540 const SMDS_MeshNode * node = itf->next();
541 if(aTool.IsMedium(node))
543 if ( !findIJ( node, quad, i1, j1 ))
544 return ClearAndReturn( aQuads, false );
545 int ij1 = j1 * nbdown + i1;
546 quad->uv_grid[ij1].node = node;
549 for (int i1 = 0; i1 < nbdown; i1++)
550 for (int j1 = 0; j1 < nbright; j1++) {
551 int ij1 = j1 * nbdown + i1;
552 int i = cz1.ia * i1 + cz1.ib * j1 + cz1.ic; // i = x/face
553 int j = cz1.ja * i1 + cz1.jb * j1 + cz1.jc; // j = y/face
554 int ijk = k * nbx * nby + j * nbx + i;
555 //MESSAGE(" "<<ij1<<" "<<i<<" "<<j<<" "<<ijk);
556 np[ijk].node = quad->uv_grid[ij1].node;
557 //SCRUTE(np[ijk].nodeId);
561 // 2.0 - for each node of the cube:
562 // - get the 8 points 3D = 8 vertices of the cube
563 // - get the 12 points 3D on the 12 edges of the cube
564 // - get the 6 points 3D on the 6 faces with their ID
565 // - compute the point 3D
566 // - store the point 3D in SMESHDS, store its ID in 3D structure
568 int shapeID = meshDS->ShapeToIndex( aShape );
570 Pt3 p000, p001, p010, p011, p100, p101, p110, p111;
571 Pt3 px00, px01, px10, px11;
572 Pt3 p0y0, p0y1, p1y0, p1y1;
573 Pt3 p00z, p01z, p10z, p11z;
574 Pt3 pxy0, pxy1, px0z, px1z, p0yz, p1yz;
576 GetPoint(p000, 0, 0, 0, nbx, nby, nbz, np, meshDS);
577 GetPoint(p001, 0, 0, nbz - 1, nbx, nby, nbz, np, meshDS);
578 GetPoint(p010, 0, nby - 1, 0, nbx, nby, nbz, np, meshDS);
579 GetPoint(p011, 0, nby - 1, nbz - 1, nbx, nby, nbz, np, meshDS);
580 GetPoint(p100, nbx - 1, 0, 0, nbx, nby, nbz, np, meshDS);
581 GetPoint(p101, nbx - 1, 0, nbz - 1, nbx, nby, nbz, np, meshDS);
582 GetPoint(p110, nbx - 1, nby - 1, 0, nbx, nby, nbz, np, meshDS);
583 GetPoint(p111, nbx - 1, nby - 1, nbz - 1, nbx, nby, nbz, np, meshDS);
585 for (int i = 1; i < nbx - 1; i++) {
586 for (int j = 1; j < nby - 1; j++) {
587 for (int k = 1; k < nbz - 1; k++) {
588 // *** seulement maillage regulier
589 // 12 points on edges
590 GetPoint(px00, i, 0, 0, nbx, nby, nbz, np, meshDS);
591 GetPoint(px01, i, 0, nbz - 1, nbx, nby, nbz, np, meshDS);
592 GetPoint(px10, i, nby - 1, 0, nbx, nby, nbz, np, meshDS);
593 GetPoint(px11, i, nby - 1, nbz - 1, nbx, nby, nbz, np, meshDS);
595 GetPoint(p0y0, 0, j, 0, nbx, nby, nbz, np, meshDS);
596 GetPoint(p0y1, 0, j, nbz - 1, nbx, nby, nbz, np, meshDS);
597 GetPoint(p1y0, nbx - 1, j, 0, nbx, nby, nbz, np, meshDS);
598 GetPoint(p1y1, nbx - 1, j, nbz - 1, nbx, nby, nbz, np, meshDS);
600 GetPoint(p00z, 0, 0, k, nbx, nby, nbz, np, meshDS);
601 GetPoint(p01z, 0, nby - 1, k, nbx, nby, nbz, np, meshDS);
602 GetPoint(p10z, nbx - 1, 0, k, nbx, nby, nbz, np, meshDS);
603 GetPoint(p11z, nbx - 1, nby - 1, k, nbx, nby, nbz, np, meshDS);
605 // 12 points on faces
606 GetPoint(pxy0, i, j, 0, nbx, nby, nbz, np, meshDS);
607 GetPoint(pxy1, i, j, nbz - 1, nbx, nby, nbz, np, meshDS);
608 GetPoint(px0z, i, 0, k, nbx, nby, nbz, np, meshDS);
609 GetPoint(px1z, i, nby - 1, k, nbx, nby, nbz, np, meshDS);
610 GetPoint(p0yz, 0, j, k, nbx, nby, nbz, np, meshDS);
611 GetPoint(p1yz, nbx - 1, j, k, nbx, nby, nbz, np, meshDS);
613 int ijk = k * nbx * nby + j * nbx + i;
614 double x = double (i) / double (nbx - 1); // *** seulement
615 double y = double (j) / double (nby - 1); // *** maillage
616 double z = double (k) / double (nbz - 1); // *** regulier
619 for (int i = 0; i < 3; i++) {
620 X[i] = (1 - x) * p0yz[i] + x * p1yz[i]
621 + (1 - y) * px0z[i] + y * px1z[i]
622 + (1 - z) * pxy0[i] + z * pxy1[i]
623 - (1 - x) * ((1 - y) * p00z[i] + y * p01z[i])
624 - x * ((1 - y) * p10z[i] + y * p11z[i])
625 - (1 - y) * ((1 - z) * px00[i] + z * px01[i])
626 - y * ((1 - z) * px10[i] + z * px11[i])
627 - (1 - z) * ((1 - x) * p0y0[i] + x * p1y0[i])
628 - z * ((1 - x) * p0y1[i] + x * p1y1[i])
629 + (1 - x) * ((1 - y) * ((1 - z) * p000[i] + z * p001[i])
630 + y * ((1 - z) * p010[i] + z * p011[i]))
631 + x * ((1 - y) * ((1 - z) * p100[i] + z * p101[i])
632 + y * ((1 - z) * p110[i] + z * p111[i]));
635 SMDS_MeshNode * node = meshDS->AddNode(X[0], X[1], X[2]);
637 meshDS->SetNodeInVolume(node, shapeID);
642 // find orientation of furute volumes according to MED convention
643 vector< bool > forward( nbx * nby );
644 SMDS_VolumeTool vTool;
645 for (int i = 0; i < nbx - 1; i++) {
646 for (int j = 0; j < nby - 1; j++) {
647 int n1 = j * nbx + i;
648 int n2 = j * nbx + i + 1;
649 int n3 = (j + 1) * nbx + i + 1;
650 int n4 = (j + 1) * nbx + i;
651 int n5 = nbx * nby + j * nbx + i;
652 int n6 = nbx * nby + j * nbx + i + 1;
653 int n7 = nbx * nby + (j + 1) * nbx + i + 1;
654 int n8 = nbx * nby + (j + 1) * nbx + i;
656 SMDS_VolumeOfNodes tmpVol (np[n1].node,np[n2].node,np[n3].node,np[n4].node,
657 np[n5].node,np[n6].node,np[n7].node,np[n8].node);
658 vTool.Set( &tmpVol );
659 forward[ n1 ] = vTool.IsForward();
663 //2.1 - for each node of the cube (less 3 *1 Faces):
664 // - store hexahedron in SMESHDS
665 MESSAGE("Storing hexahedron into the DS");
666 for (int i = 0; i < nbx - 1; i++) {
667 for (int j = 0; j < nby - 1; j++) {
668 bool isForw = forward.at( j * nbx + i );
669 for (int k = 0; k < nbz - 1; k++) {
670 int n1 = k * nbx * nby + j * nbx + i;
671 int n2 = k * nbx * nby + j * nbx + i + 1;
672 int n3 = k * nbx * nby + (j + 1) * nbx + i + 1;
673 int n4 = k * nbx * nby + (j + 1) * nbx + i;
674 int n5 = (k + 1) * nbx * nby + j * nbx + i;
675 int n6 = (k + 1) * nbx * nby + j * nbx + i + 1;
676 int n7 = (k + 1) * nbx * nby + (j + 1) * nbx + i + 1;
677 int n8 = (k + 1) * nbx * nby + (j + 1) * nbx + i;
679 SMDS_MeshVolume * elt;
681 elt = aTool.AddVolume(np[n1].node, np[n2].node,
682 np[n3].node, np[n4].node,
683 np[n5].node, np[n6].node,
684 np[n7].node, np[n8].node);
687 elt = aTool.AddVolume(np[n1].node, np[n4].node,
688 np[n3].node, np[n2].node,
689 np[n5].node, np[n8].node,
690 np[n7].node, np[n6].node);
693 meshDS->SetMeshElementOnShape(elt, shapeID);
697 if ( np ) delete [] np;
698 return ClearAndReturn( aQuads, true );
701 //=============================================================================
705 //=============================================================================
707 void StdMeshers_Hexa_3D::GetPoint(Pt3 p, int i, int j, int k, int nbx, int nby, int nbz,
708 Point3DStruct * np, const SMESHDS_Mesh * meshDS)
710 int ijk = k * nbx * nby + j * nbx + i;
711 const SMDS_MeshNode * node = np[ijk].node;
715 //MESSAGE(" "<<i<<" "<<j<<" "<<k<<" "<<p[0]<<" "<<p[1]<<" "<<p[2]);
718 //=============================================================================
722 //=============================================================================
724 int StdMeshers_Hexa_3D::GetFaceIndex(SMESH_Mesh & aMesh,
725 const TopoDS_Shape & aShape,
726 const vector < SMESH_subMesh * >&meshFaces,
727 const TopoDS_Vertex & V0,
728 const TopoDS_Vertex & V1,
729 const TopoDS_Vertex & V2, const TopoDS_Vertex & V3)
731 //MESSAGE("StdMeshers_Hexa_3D::GetFaceIndex");
733 for (int i = 1; i < 6; i++)
735 const TopoDS_Shape & aFace = meshFaces[i]->GetSubShape();
736 //const TopoDS_Face& F = TopoDS::Face(aFace);
737 TopTools_IndexedMapOfShape M;
738 TopExp::MapShapes(aFace, TopAbs_VERTEX, M);
739 bool verticesInShape = false;
744 verticesInShape = true;
751 ASSERT(faceIndex > 0);
756 //=============================================================================
760 //=============================================================================
763 StdMeshers_Hexa_3D::EdgeNotInFace(SMESH_Mesh & aMesh,
764 const TopoDS_Shape & aShape,
765 const TopoDS_Face & aFace,
766 const TopoDS_Vertex & aVertex,
767 const TopTools_IndexedDataMapOfShapeListOfShape & MS)
769 //MESSAGE("StdMeshers_Hexa_3D::EdgeNotInFace");
770 TopTools_IndexedDataMapOfShapeListOfShape MF;
771 TopExp::MapShapesAndAncestors(aFace, TopAbs_VERTEX, TopAbs_EDGE, MF);
772 const TopTools_ListOfShape & ancestorsInSolid = MS.FindFromKey(aVertex);
773 const TopTools_ListOfShape & ancestorsInFace = MF.FindFromKey(aVertex);
774 // SCRUTE(ancestorsInSolid.Extent());
775 // SCRUTE(ancestorsInFace.Extent());
776 ASSERT(ancestorsInSolid.Extent() == 6); // 6 (edges doublees)
777 ASSERT(ancestorsInFace.Extent() == 2);
781 TopTools_ListIteratorOfListOfShape its(ancestorsInSolid);
782 for (; its.More(); its.Next())
784 TopoDS_Shape ancestor = its.Value();
785 TopTools_ListIteratorOfListOfShape itf(ancestorsInFace);
786 bool isInFace = false;
787 for (; itf.More(); itf.Next())
789 TopoDS_Shape ancestorInFace = itf.Value();
790 if (ancestorInFace.IsSame(ancestor))
798 E = TopoDS::Edge(ancestor);
805 //=============================================================================
809 //=============================================================================
811 void StdMeshers_Hexa_3D::GetConv2DCoefs(const faceQuadStruct & quad,
812 const TopoDS_Shape & aShape,
813 const TopoDS_Vertex & V0,
814 const TopoDS_Vertex & V1,
815 const TopoDS_Vertex & V2, const TopoDS_Vertex & V3, Conv2DStruct & conv)
817 // MESSAGE("StdMeshers_Hexa_3D::GetConv2DCoefs");
818 // const TopoDS_Face & F = TopoDS::Face(aShape);
819 // TopoDS_Edge E = quad.edge[0];
821 // Handle(Geom2d_Curve) C2d = BRep_Tool::CurveOnSurface(E, F, f, l);
822 // TopoDS_Vertex VFirst, VLast;
823 // TopExp::Vertices(E, VFirst, VLast); // corresponds to f and l
824 // bool isForward = (((l - f) * (quad.last[0] - quad.first[0])) > 0);
825 TopoDS_Vertex VA, VB;
836 VA = quad.side[0]->FirstVertex();
837 VB = quad.side[0]->LastVertex();
839 int a1, b1, c1, a2, b2, c2;
852 ASSERT(VB.IsSame(V3));
872 ASSERT(VB.IsSame(V0));
892 ASSERT(VB.IsSame(V1));
912 ASSERT(VB.IsSame(V2));
920 // MESSAGE("X = " << c1 << "+ " << a1 << "*x + " << b1 << "*y");
921 // MESSAGE("Y = " << c2 << "+ " << a2 << "*x + " << b2 << "*y");
929 int nbdown = quad.side[0]->NbPoints();
930 int nbright = quad.side[1]->NbPoints();
934 int (c1 * a1 * a1) * (nbdown - 1) + int (c1 * b1 * b1) * (nbright - 1);
938 int (c2 * a2 * a2) * (nbdown - 1) + int (c2 * b2 * b2) * (nbright - 1);
939 // MESSAGE("I " << conv.ia << " " << conv.ib << " " << conv.ic);
940 // MESSAGE("J " << conv.ja << " " << conv.jb << " " << conv.jc);
943 //================================================================================
945 * \brief Find a vertex opposite to the given vertex of aQuads[0]
946 * \param aVertex - the vertex
947 * \param aFace - the face aVertex belongs to
948 * \param aQuads - quads
949 * \retval TopoDS_Vertex - found vertex
951 //================================================================================
953 TopoDS_Vertex StdMeshers_Hexa_3D::OppositeVertex(const TopoDS_Vertex& aVertex,
954 const TopTools_IndexedMapOfShape& aQuads0Vertices,
955 FaceQuadStruct* aQuads[6])
958 for ( i = 1; i < 6; ++i )
960 TopoDS_Vertex VV[] = { aQuads[i]->side[0]->FirstVertex(),
961 aQuads[i]->side[0]->LastVertex() ,
962 aQuads[i]->side[2]->LastVertex() ,
963 aQuads[i]->side[2]->FirstVertex() };
964 for ( j = 0; j < 4; ++j )
965 if ( aVertex.IsSame( VV[ j ]))
968 int jPrev = j ? j - 1 : 3;
969 int jNext = (j + 1) % 4;
970 if ( aQuads0Vertices.Contains( VV[ jPrev ] ))
976 return TopoDS_Vertex();
979 //modified by NIZNHY-PKV Wed Nov 17 15:34:13 2004 f
980 ///////////////////////////////////////////////////////////////////////////////
984 //=======================================================================
985 //function : ComputePentahedralMesh
987 //=======================================================================
989 SMESH_ComputeErrorPtr ComputePentahedralMesh(SMESH_Mesh & aMesh,
990 const TopoDS_Shape & aShape)
992 //printf(" ComputePentahedralMesh HERE\n");
995 SMESH_ComputeErrorPtr err = SMESH_ComputeError::New();
997 StdMeshers_Penta_3D anAlgo;
999 bOK=anAlgo.Compute(aMesh, aShape);
1001 err = anAlgo.GetComputeError();
1003 if ( !bOK && anAlgo.ErrorStatus() == 5 )
1005 static StdMeshers_Prism_3D * aPrism3D = 0;
1007 SMESH_Gen* gen = aMesh.GetGen();
1008 aPrism3D = new StdMeshers_Prism_3D( gen->GetANewId(), 0, gen );
1010 SMESH_Hypothesis::Hypothesis_Status aStatus;
1011 if ( aPrism3D->CheckHypothesis( aMesh, aShape, aStatus ) ) {
1012 bOK = aPrism3D->Compute( aMesh, aShape );
1013 err = aPrism3D->GetComputeError();