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 //=======================================================================
133 //function : isCloser
135 //=======================================================================
137 inline bool isCloser(const int i, const int j, const int nbhoriz,
138 const FaceQuadStruct* quad, const gp_Pnt2d uv,
141 int ij = j * nbhoriz + i;
142 gp_Pnt2d uv2( quad->uv_grid[ij].u, quad->uv_grid[ij].v );
143 double dist = uv.SquareDistance( uv2 );
144 if ( dist < minDist ) {
151 //=======================================================================
153 //purpose : return i,j of the node
154 //=======================================================================
156 static bool findIJ (const SMDS_MeshNode* node, const FaceQuadStruct * quad, int& I, int& J)
158 const SMDS_FacePosition* fpos =
159 static_cast<const SMDS_FacePosition*>(node->GetPosition().get());
160 if ( ! fpos ) return false;
161 gp_Pnt2d uv( fpos->GetUParameter(), fpos->GetVParameter() );
163 double minDist = DBL_MAX;
164 const int nbhoriz = quad->side[0]->NbPoints();
165 const int nbvertic = quad->side[1]->NbPoints();
166 I = nbhoriz/2; J = nbvertic/2;
170 while ( I + 2 < nbhoriz && isCloser( I + 1, J, nbhoriz, quad, uv, minDist ))
173 while ( I - 1 > 0 && isCloser( I - 1, J, nbhoriz, quad, uv, minDist ))
175 if ( minDist < DBL_MIN )
178 while ( J + 2 < nbvertic && isCloser( I, J + 1, nbhoriz, quad, uv, minDist ))
181 while ( J - 1 > 0 && isCloser( I, J - 1, nbhoriz, quad, uv, minDist ))
183 if ( minDist < DBL_MIN )
186 } while ( I != oldI || J != oldJ );
188 if ( minDist > DBL_MIN ) {
189 for (int i = 1; i < nbhoriz - 1; i++)
190 for (int j = 1; j < nbvertic - 1; j++)
191 if ( isCloser( i, j, nbhoriz, quad, uv, minDist ))
198 //=============================================================================
200 * Hexahedron mesh on hexaedron like form
201 * -0. - shape and face mesh verification
202 * -1. - identify faces and vertices of the "cube"
203 * -2. - Algorithm from:
204 * "Application de l'interpolation transfinie à la création de maillages
205 * C0 ou G1 continus sur des triangles, quadrangles, tetraedres, pentaedres
206 * et hexaedres déformés."
207 * Alain PERONNET - 8 janvier 1999
209 //=============================================================================
211 bool StdMeshers_Hexa_3D::Compute(SMESH_Mesh & aMesh,
212 const TopoDS_Shape & aShape)// throw(SALOME_Exception)
214 // PAL14921. Enable catching std::bad_alloc and Standard_OutOfMemory outside
215 //Unexpect aCatch(SalomeException);
216 MESSAGE("StdMeshers_Hexa_3D::Compute");
217 SMESHDS_Mesh * meshDS = aMesh.GetMeshDS();
219 // 0. - shape and face mesh verification
220 // 0.1 - shape must be a solid (or a shell) with 6 faces
222 vector < SMESH_subMesh * >meshFaces;
223 for (TopExp_Explorer exp(aShape, TopAbs_FACE); exp.More(); exp.Next()) {
224 SMESH_subMesh *aSubMesh = aMesh.GetSubMeshContaining(exp.Current());
226 meshFaces.push_back(aSubMesh);
228 if (meshFaces.size() != 6)
229 return error(COMPERR_BAD_SHAPE, TComm(meshFaces.size())<<" instead of 6 faces in a block");
231 // 0.2 - is each face meshed with Quadrangle_2D? (so, with a wire of 4 edges)
233 // tool for working with quadratic elements
234 SMESH_MesherHelper aTool (aMesh);
235 _quadraticMesh = aTool.IsQuadraticSubMesh(aShape);
238 typedef struct cubeStruct
248 faceQuadStruct* quad_X0;
249 faceQuadStruct* quad_X1;
250 faceQuadStruct* quad_Y0;
251 faceQuadStruct* quad_Y1;
252 faceQuadStruct* quad_Z0;
253 faceQuadStruct* quad_Z1;
254 Point3DStruct* np; // normalised 3D coordinates
260 FaceQuadStruct* aQuads[6];
261 for (int i = 0; i < 6; i++)
264 for (int i = 0; i < 6; i++)
266 TopoDS_Shape aFace = meshFaces[i]->GetSubShape();
267 SMESH_Algo *algo = _gen->GetAlgo(aMesh, aFace);
268 string algoName = algo->GetName();
269 bool isAllQuad = false;
270 if (algoName == "Quadrangle_2D") {
271 SMESHDS_SubMesh * sm = meshDS->MeshElements( aFace );
274 SMDS_ElemIteratorPtr eIt = sm->GetElements();
275 while ( isAllQuad && eIt->more() ) {
276 const SMDS_MeshElement* elem = eIt->next();
277 isAllQuad = ( elem->NbNodes()==4 ||(_quadraticMesh && elem->NbNodes()==8) );
282 SMESH_ComputeErrorPtr err = ComputePentahedralMesh(aMesh, aShape);
283 return ClearAndReturn( aQuads, error(err));
285 StdMeshers_Quadrangle_2D *quadAlgo =
286 dynamic_cast < StdMeshers_Quadrangle_2D * >(algo);
289 aQuads[i] = quadAlgo->CheckAnd2Dcompute(aMesh, aFace, _quadraticMesh);
291 return error( quadAlgo->GetComputeError());
294 catch(SALOME_Exception & S_ex) {
295 return ClearAndReturn( aQuads, error(COMPERR_SLM_EXCEPTION,TComm(S_ex.what()) <<
296 " Raised by StdMeshers_Quadrangle_2D "
297 " on face #" << meshDS->ShapeToIndex( aFace )));
300 // 0.2.1 - number of points on the opposite edges must be the same
301 if (aQuads[i]->side[0]->NbPoints() != aQuads[i]->side[2]->NbPoints() ||
302 aQuads[i]->side[1]->NbPoints() != aQuads[i]->side[3]->NbPoints()
303 /*aQuads[i]->side[0]->NbEdges() != 1 ||
304 aQuads[i]->side[1]->NbEdges() != 1 ||
305 aQuads[i]->side[2]->NbEdges() != 1 ||
306 aQuads[i]->side[3]->NbEdges() != 1*/) {
307 MESSAGE("different number of points on the opposite edges of face " << i);
308 // Try to go into penta algorithm 'cause it has been improved.
309 SMESH_ComputeErrorPtr err = ComputePentahedralMesh(aMesh, aShape);
310 return ClearAndReturn( aQuads, error(err));
314 // 1. - identify faces and vertices of the "cube"
315 // 1.1 - ancestor maps vertex->edges in the cube
317 TopTools_IndexedDataMapOfShapeListOfShape MS;
318 TopExp::MapShapesAndAncestors(aShape, TopAbs_VERTEX, TopAbs_EDGE, MS);
320 // 1.2 - first face is choosen as face Y=0 of the unit cube
322 const TopoDS_Shape & aFace = meshFaces[0]->GetSubShape();
323 const TopoDS_Face & F = TopoDS::Face(aFace);
325 // 1.3 - identify the 4 vertices of the face Y=0: V000, V100, V101, V001
327 aCube.V000 = aQuads[0]->side[0]->FirstVertex(); // will be (0,0,0) on the unit cube
328 aCube.V100 = aQuads[0]->side[0]->LastVertex(); // will be (1,0,0) on the unit cube
329 aCube.V001 = aQuads[0]->side[2]->FirstVertex(); // will be (0,0,1) on the unit cube
330 aCube.V101 = aQuads[0]->side[2]->LastVertex(); // will be (1,0,1) on the unit cube
332 TopTools_IndexedMapOfShape MV0;
333 TopExp::MapShapes(F, TopAbs_VERTEX, MV0);
335 aCube.V010 = OppositeVertex( aCube.V000, MV0, aQuads);
336 aCube.V110 = OppositeVertex( aCube.V100, MV0, aQuads);
337 aCube.V011 = OppositeVertex( aCube.V001, MV0, aQuads);
338 aCube.V111 = OppositeVertex( aCube.V101, MV0, aQuads);
340 // 1.6 - find remaining faces given 4 vertices
343 aCube.quad_Y0 = aQuads[_indY0];
345 int _indY1 = GetFaceIndex(aMesh, aShape, meshFaces,
346 aCube.V010, aCube.V011, aCube.V110, aCube.V111);
347 aCube.quad_Y1 = aQuads[_indY1];
349 int _indZ0 = GetFaceIndex(aMesh, aShape, meshFaces,
350 aCube.V000, aCube.V010, aCube.V100, aCube.V110);
351 aCube.quad_Z0 = aQuads[_indZ0];
353 int _indZ1 = GetFaceIndex(aMesh, aShape, meshFaces,
354 aCube.V001, aCube.V011, aCube.V101, aCube.V111);
355 aCube.quad_Z1 = aQuads[_indZ1];
357 int _indX0 = GetFaceIndex(aMesh, aShape, meshFaces,
358 aCube.V000, aCube.V001, aCube.V010, aCube.V011);
359 aCube.quad_X0 = aQuads[_indX0];
361 int _indX1 = GetFaceIndex(aMesh, aShape, meshFaces,
362 aCube.V100, aCube.V101, aCube.V110, aCube.V111);
363 aCube.quad_X1 = aQuads[_indX1];
365 // 1.7 - get convertion coefs from face 2D normalized to 3D normalized
367 Conv2DStruct cx0; // for face X=0
368 Conv2DStruct cx1; // for face X=1
374 GetConv2DCoefs(*aCube.quad_X0, meshFaces[_indX0]->GetSubShape(),
375 aCube.V000, aCube.V010, aCube.V011, aCube.V001, cx0);
376 GetConv2DCoefs(*aCube.quad_X1, meshFaces[_indX1]->GetSubShape(),
377 aCube.V100, aCube.V110, aCube.V111, aCube.V101, cx1);
378 GetConv2DCoefs(*aCube.quad_Y0, meshFaces[_indY0]->GetSubShape(),
379 aCube.V000, aCube.V100, aCube.V101, aCube.V001, cy0);
380 GetConv2DCoefs(*aCube.quad_Y1, meshFaces[_indY1]->GetSubShape(),
381 aCube.V010, aCube.V110, aCube.V111, aCube.V011, cy1);
382 GetConv2DCoefs(*aCube.quad_Z0, meshFaces[_indZ0]->GetSubShape(),
383 aCube.V000, aCube.V100, aCube.V110, aCube.V010, cz0);
384 GetConv2DCoefs(*aCube.quad_Z1, meshFaces[_indZ1]->GetSubShape(),
385 aCube.V001, aCube.V101, aCube.V111, aCube.V011, cz1);
387 // 1.8 - create a 3D structure for normalized values
389 int nbx = aCube.quad_Z0->side[0]->NbPoints();
390 if (cz0.a1 == 0.) nbx = aCube.quad_Z0->side[1]->NbPoints();
392 int nby = aCube.quad_X0->side[0]->NbPoints();
393 if (cx0.a1 == 0.) nby = aCube.quad_X0->side[1]->NbPoints();
395 int nbz = aCube.quad_Y0->side[0]->NbPoints();
396 if (cy0.a1 != 0.) nbz = aCube.quad_Y0->side[1]->NbPoints();
398 int i1, j1, nbxyz = nbx * nby * nbz;
399 Point3DStruct *np = new Point3DStruct[nbxyz];
401 // 1.9 - store node indexes of faces
404 const TopoDS_Face & F = TopoDS::Face(meshFaces[_indX0]->GetSubShape());
406 faceQuadStruct *quad = aCube.quad_X0;
407 int i = 0; // j = x/face , k = y/face
408 int nbdown = quad->side[0]->NbPoints();
409 int nbright = quad->side[1]->NbPoints();
411 SMDS_NodeIteratorPtr itf= aMesh.GetSubMesh(F)->GetSubMeshDS()->GetNodes();
414 const SMDS_MeshNode * node = itf->next();
415 if(aTool.IsMedium(node))
417 if ( !findIJ( node, quad, i1, j1 ))
418 return ClearAndReturn( aQuads, false );
419 int ij1 = j1 * nbdown + i1;
420 quad->uv_grid[ij1].node = node;
423 for (int i1 = 0; i1 < nbdown; i1++)
424 for (int j1 = 0; j1 < nbright; j1++) {
425 int ij1 = j1 * nbdown + i1;
426 int j = cx0.ia * i1 + cx0.ib * j1 + cx0.ic; // j = x/face
427 int k = cx0.ja * i1 + cx0.jb * j1 + cx0.jc; // k = y/face
428 int ijk = k * nbx * nby + j * nbx + i;
429 //MESSAGE(" "<<ij1<<" "<<i<<" "<<j<<" "<<ijk);
430 np[ijk].node = quad->uv_grid[ij1].node;
431 //SCRUTE(np[ijk].nodeId);
436 const TopoDS_Face & F = TopoDS::Face(meshFaces[_indX1]->GetSubShape());
438 SMDS_NodeIteratorPtr itf= aMesh.GetSubMesh(F)->GetSubMeshDS()->GetNodes();
440 faceQuadStruct *quad = aCube.quad_X1;
441 int i = nbx - 1; // j = x/face , k = y/face
442 int nbdown = quad->side[0]->NbPoints();
443 int nbright = quad->side[1]->NbPoints();
446 const SMDS_MeshNode * node = itf->next();
447 if(aTool.IsMedium(node))
449 if ( !findIJ( node, quad, i1, j1 ))
450 return ClearAndReturn( aQuads, false );
451 int ij1 = j1 * nbdown + i1;
452 quad->uv_grid[ij1].node = node;
455 for (int i1 = 0; i1 < nbdown; i1++)
456 for (int j1 = 0; j1 < nbright; j1++) {
457 int ij1 = j1 * nbdown + i1;
458 int j = cx1.ia * i1 + cx1.ib * j1 + cx1.ic; // j = x/face
459 int k = cx1.ja * i1 + cx1.jb * j1 + cx1.jc; // k = y/face
460 int ijk = k * nbx * nby + j * nbx + i;
461 //MESSAGE(" "<<ij1<<" "<<i<<" "<<j<<" "<<ijk);
462 np[ijk].node = quad->uv_grid[ij1].node;
463 //SCRUTE(np[ijk].nodeId);
468 const TopoDS_Face & F = TopoDS::Face(meshFaces[_indY0]->GetSubShape());
470 SMDS_NodeIteratorPtr itf= aMesh.GetSubMesh(F)->GetSubMeshDS()->GetNodes();
472 faceQuadStruct *quad = aCube.quad_Y0;
473 int j = 0; // i = x/face , k = y/face
474 int nbdown = quad->side[0]->NbPoints();
475 int nbright = quad->side[1]->NbPoints();
478 const SMDS_MeshNode * node = itf->next();
479 if(aTool.IsMedium(node))
481 if ( !findIJ( node, quad, i1, j1 ))
482 return ClearAndReturn( aQuads, false );
483 int ij1 = j1 * nbdown + i1;
484 quad->uv_grid[ij1].node = node;
487 for (int i1 = 0; i1 < nbdown; i1++)
488 for (int j1 = 0; j1 < nbright; j1++) {
489 int ij1 = j1 * nbdown + i1;
490 int i = cy0.ia * i1 + cy0.ib * j1 + cy0.ic; // i = x/face
491 int k = cy0.ja * i1 + cy0.jb * j1 + cy0.jc; // k = y/face
492 int ijk = k * nbx * nby + j * nbx + i;
493 //MESSAGE(" "<<ij1<<" "<<i<<" "<<j<<" "<<ijk);
494 np[ijk].node = quad->uv_grid[ij1].node;
495 //SCRUTE(np[ijk].nodeId);
500 const TopoDS_Face & F = TopoDS::Face(meshFaces[_indY1]->GetSubShape());
502 SMDS_NodeIteratorPtr itf= aMesh.GetSubMesh(F)->GetSubMeshDS()->GetNodes();
504 faceQuadStruct *quad = aCube.quad_Y1;
505 int j = nby - 1; // i = x/face , k = y/face
506 int nbdown = quad->side[0]->NbPoints();
507 int nbright = quad->side[1]->NbPoints();
510 const SMDS_MeshNode * node = itf->next();
511 if(aTool.IsMedium(node))
513 if ( !findIJ( node, quad, i1, j1 ))
514 return ClearAndReturn( aQuads, false );
515 int ij1 = j1 * nbdown + i1;
516 quad->uv_grid[ij1].node = node;
519 for (int i1 = 0; i1 < nbdown; i1++)
520 for (int j1 = 0; j1 < nbright; j1++) {
521 int ij1 = j1 * nbdown + i1;
522 int i = cy1.ia * i1 + cy1.ib * j1 + cy1.ic; // i = x/face
523 int k = cy1.ja * i1 + cy1.jb * j1 + cy1.jc; // k = y/face
524 int ijk = k * nbx * nby + j * nbx + i;
525 //MESSAGE(" "<<ij1<<" "<<i<<" "<<j<<" "<<ijk);
526 np[ijk].node = quad->uv_grid[ij1].node;
527 //SCRUTE(np[ijk].nodeId);
532 const TopoDS_Face & F = TopoDS::Face(meshFaces[_indZ0]->GetSubShape());
534 SMDS_NodeIteratorPtr itf= aMesh.GetSubMesh(F)->GetSubMeshDS()->GetNodes();
536 faceQuadStruct *quad = aCube.quad_Z0;
537 int k = 0; // i = x/face , j = y/face
538 int nbdown = quad->side[0]->NbPoints();
539 int nbright = quad->side[1]->NbPoints();
542 const SMDS_MeshNode * node = itf->next();
543 if(aTool.IsMedium(node))
545 if ( !findIJ( node, quad, i1, j1 ))
546 return ClearAndReturn( aQuads, false );
547 int ij1 = j1 * nbdown + i1;
548 quad->uv_grid[ij1].node = node;
551 for (int i1 = 0; i1 < nbdown; i1++)
552 for (int j1 = 0; j1 < nbright; j1++) {
553 int ij1 = j1 * nbdown + i1;
554 int i = cz0.ia * i1 + cz0.ib * j1 + cz0.ic; // i = x/face
555 int j = cz0.ja * i1 + cz0.jb * j1 + cz0.jc; // j = y/face
556 int ijk = k * nbx * nby + j * nbx + i;
557 //MESSAGE(" "<<ij1<<" "<<i<<" "<<j<<" "<<ijk);
558 np[ijk].node = quad->uv_grid[ij1].node;
559 //SCRUTE(np[ijk].nodeId);
564 const TopoDS_Face & F = TopoDS::Face(meshFaces[_indZ1]->GetSubShape());
566 SMDS_NodeIteratorPtr itf= aMesh.GetSubMesh(F)->GetSubMeshDS()->GetNodes();
568 faceQuadStruct *quad = aCube.quad_Z1;
569 int k = nbz - 1; // i = x/face , j = y/face
570 int nbdown = quad->side[0]->NbPoints();
571 int nbright = quad->side[1]->NbPoints();
574 const SMDS_MeshNode * node = itf->next();
575 if(aTool.IsMedium(node))
577 if ( !findIJ( node, quad, i1, j1 ))
578 return ClearAndReturn( aQuads, false );
579 int ij1 = j1 * nbdown + i1;
580 quad->uv_grid[ij1].node = node;
583 for (int i1 = 0; i1 < nbdown; i1++)
584 for (int j1 = 0; j1 < nbright; j1++) {
585 int ij1 = j1 * nbdown + i1;
586 int i = cz1.ia * i1 + cz1.ib * j1 + cz1.ic; // i = x/face
587 int j = cz1.ja * i1 + cz1.jb * j1 + cz1.jc; // j = y/face
588 int ijk = k * nbx * nby + j * nbx + i;
589 //MESSAGE(" "<<ij1<<" "<<i<<" "<<j<<" "<<ijk);
590 np[ijk].node = quad->uv_grid[ij1].node;
591 //SCRUTE(np[ijk].nodeId);
595 // 2.0 - for each node of the cube:
596 // - get the 8 points 3D = 8 vertices of the cube
597 // - get the 12 points 3D on the 12 edges of the cube
598 // - get the 6 points 3D on the 6 faces with their ID
599 // - compute the point 3D
600 // - store the point 3D in SMESHDS, store its ID in 3D structure
602 int shapeID = meshDS->ShapeToIndex( aShape );
604 Pt3 p000, p001, p010, p011, p100, p101, p110, p111;
605 Pt3 px00, px01, px10, px11;
606 Pt3 p0y0, p0y1, p1y0, p1y1;
607 Pt3 p00z, p01z, p10z, p11z;
608 Pt3 pxy0, pxy1, px0z, px1z, p0yz, p1yz;
610 GetPoint(p000, 0, 0, 0, nbx, nby, nbz, np, meshDS);
611 GetPoint(p001, 0, 0, nbz - 1, nbx, nby, nbz, np, meshDS);
612 GetPoint(p010, 0, nby - 1, 0, nbx, nby, nbz, np, meshDS);
613 GetPoint(p011, 0, nby - 1, nbz - 1, nbx, nby, nbz, np, meshDS);
614 GetPoint(p100, nbx - 1, 0, 0, nbx, nby, nbz, np, meshDS);
615 GetPoint(p101, nbx - 1, 0, nbz - 1, nbx, nby, nbz, np, meshDS);
616 GetPoint(p110, nbx - 1, nby - 1, 0, nbx, nby, nbz, np, meshDS);
617 GetPoint(p111, nbx - 1, nby - 1, nbz - 1, nbx, nby, nbz, np, meshDS);
619 for (int i = 1; i < nbx - 1; i++) {
620 for (int j = 1; j < nby - 1; j++) {
621 for (int k = 1; k < nbz - 1; k++) {
622 // *** seulement maillage regulier
623 // 12 points on edges
624 GetPoint(px00, i, 0, 0, nbx, nby, nbz, np, meshDS);
625 GetPoint(px01, i, 0, nbz - 1, nbx, nby, nbz, np, meshDS);
626 GetPoint(px10, i, nby - 1, 0, nbx, nby, nbz, np, meshDS);
627 GetPoint(px11, i, nby - 1, nbz - 1, nbx, nby, nbz, np, meshDS);
629 GetPoint(p0y0, 0, j, 0, nbx, nby, nbz, np, meshDS);
630 GetPoint(p0y1, 0, j, nbz - 1, nbx, nby, nbz, np, meshDS);
631 GetPoint(p1y0, nbx - 1, j, 0, nbx, nby, nbz, np, meshDS);
632 GetPoint(p1y1, nbx - 1, j, nbz - 1, nbx, nby, nbz, np, meshDS);
634 GetPoint(p00z, 0, 0, k, nbx, nby, nbz, np, meshDS);
635 GetPoint(p01z, 0, nby - 1, k, nbx, nby, nbz, np, meshDS);
636 GetPoint(p10z, nbx - 1, 0, k, nbx, nby, nbz, np, meshDS);
637 GetPoint(p11z, nbx - 1, nby - 1, k, nbx, nby, nbz, np, meshDS);
639 // 12 points on faces
640 GetPoint(pxy0, i, j, 0, nbx, nby, nbz, np, meshDS);
641 GetPoint(pxy1, i, j, nbz - 1, nbx, nby, nbz, np, meshDS);
642 GetPoint(px0z, i, 0, k, nbx, nby, nbz, np, meshDS);
643 GetPoint(px1z, i, nby - 1, k, nbx, nby, nbz, np, meshDS);
644 GetPoint(p0yz, 0, j, k, nbx, nby, nbz, np, meshDS);
645 GetPoint(p1yz, nbx - 1, j, k, nbx, nby, nbz, np, meshDS);
647 int ijk = k * nbx * nby + j * nbx + i;
648 double x = double (i) / double (nbx - 1); // *** seulement
649 double y = double (j) / double (nby - 1); // *** maillage
650 double z = double (k) / double (nbz - 1); // *** regulier
653 for (int i = 0; i < 3; i++) {
654 X[i] = (1 - x) * p0yz[i] + x * p1yz[i]
655 + (1 - y) * px0z[i] + y * px1z[i]
656 + (1 - z) * pxy0[i] + z * pxy1[i]
657 - (1 - x) * ((1 - y) * p00z[i] + y * p01z[i])
658 - x * ((1 - y) * p10z[i] + y * p11z[i])
659 - (1 - y) * ((1 - z) * px00[i] + z * px01[i])
660 - y * ((1 - z) * px10[i] + z * px11[i])
661 - (1 - z) * ((1 - x) * p0y0[i] + x * p1y0[i])
662 - z * ((1 - x) * p0y1[i] + x * p1y1[i])
663 + (1 - x) * ((1 - y) * ((1 - z) * p000[i] + z * p001[i])
664 + y * ((1 - z) * p010[i] + z * p011[i]))
665 + x * ((1 - y) * ((1 - z) * p100[i] + z * p101[i])
666 + y * ((1 - z) * p110[i] + z * p111[i]));
669 SMDS_MeshNode * node = meshDS->AddNode(X[0], X[1], X[2]);
671 meshDS->SetNodeInVolume(node, shapeID);
676 // find orientation of furute volumes according to MED convention
677 vector< bool > forward( nbx * nby );
678 SMDS_VolumeTool vTool;
679 for (int i = 0; i < nbx - 1; i++) {
680 for (int j = 0; j < nby - 1; j++) {
681 int n1 = j * nbx + i;
682 int n2 = j * nbx + i + 1;
683 int n3 = (j + 1) * nbx + i + 1;
684 int n4 = (j + 1) * nbx + i;
685 int n5 = nbx * nby + j * nbx + i;
686 int n6 = nbx * nby + j * nbx + i + 1;
687 int n7 = nbx * nby + (j + 1) * nbx + i + 1;
688 int n8 = nbx * nby + (j + 1) * nbx + i;
690 SMDS_VolumeOfNodes tmpVol (np[n1].node,np[n2].node,np[n3].node,np[n4].node,
691 np[n5].node,np[n6].node,np[n7].node,np[n8].node);
692 vTool.Set( &tmpVol );
693 forward[ n1 ] = vTool.IsForward();
697 //2.1 - for each node of the cube (less 3 *1 Faces):
698 // - store hexahedron in SMESHDS
699 MESSAGE("Storing hexahedron into the DS");
700 for (int i = 0; i < nbx - 1; i++) {
701 for (int j = 0; j < nby - 1; j++) {
702 bool isForw = forward.at( j * nbx + i );
703 for (int k = 0; k < nbz - 1; k++) {
704 int n1 = k * nbx * nby + j * nbx + i;
705 int n2 = k * nbx * nby + j * nbx + i + 1;
706 int n3 = k * nbx * nby + (j + 1) * nbx + i + 1;
707 int n4 = k * nbx * nby + (j + 1) * nbx + i;
708 int n5 = (k + 1) * nbx * nby + j * nbx + i;
709 int n6 = (k + 1) * nbx * nby + j * nbx + i + 1;
710 int n7 = (k + 1) * nbx * nby + (j + 1) * nbx + i + 1;
711 int n8 = (k + 1) * nbx * nby + (j + 1) * nbx + i;
713 SMDS_MeshVolume * elt;
715 elt = aTool.AddVolume(np[n1].node, np[n2].node,
716 np[n3].node, np[n4].node,
717 np[n5].node, np[n6].node,
718 np[n7].node, np[n8].node);
721 elt = aTool.AddVolume(np[n1].node, np[n4].node,
722 np[n3].node, np[n2].node,
723 np[n5].node, np[n8].node,
724 np[n7].node, np[n6].node);
727 meshDS->SetMeshElementOnShape(elt, shapeID);
731 if ( np ) delete [] np;
732 return ClearAndReturn( aQuads, true );
735 //=============================================================================
739 //=============================================================================
741 void StdMeshers_Hexa_3D::GetPoint(Pt3 p, int i, int j, int k, int nbx, int nby, int nbz,
742 Point3DStruct * np, const SMESHDS_Mesh * meshDS)
744 int ijk = k * nbx * nby + j * nbx + i;
745 const SMDS_MeshNode * node = np[ijk].node;
749 //MESSAGE(" "<<i<<" "<<j<<" "<<k<<" "<<p[0]<<" "<<p[1]<<" "<<p[2]);
752 //=============================================================================
756 //=============================================================================
758 int StdMeshers_Hexa_3D::GetFaceIndex(SMESH_Mesh & aMesh,
759 const TopoDS_Shape & aShape,
760 const vector < SMESH_subMesh * >&meshFaces,
761 const TopoDS_Vertex & V0,
762 const TopoDS_Vertex & V1,
763 const TopoDS_Vertex & V2, const TopoDS_Vertex & V3)
765 //MESSAGE("StdMeshers_Hexa_3D::GetFaceIndex");
767 for (int i = 1; i < 6; i++)
769 const TopoDS_Shape & aFace = meshFaces[i]->GetSubShape();
770 //const TopoDS_Face& F = TopoDS::Face(aFace);
771 TopTools_IndexedMapOfShape M;
772 TopExp::MapShapes(aFace, TopAbs_VERTEX, M);
773 bool verticesInShape = false;
778 verticesInShape = true;
785 ASSERT(faceIndex > 0);
790 //=============================================================================
794 //=============================================================================
797 StdMeshers_Hexa_3D::EdgeNotInFace(SMESH_Mesh & aMesh,
798 const TopoDS_Shape & aShape,
799 const TopoDS_Face & aFace,
800 const TopoDS_Vertex & aVertex,
801 const TopTools_IndexedDataMapOfShapeListOfShape & MS)
803 //MESSAGE("StdMeshers_Hexa_3D::EdgeNotInFace");
804 TopTools_IndexedDataMapOfShapeListOfShape MF;
805 TopExp::MapShapesAndAncestors(aFace, TopAbs_VERTEX, TopAbs_EDGE, MF);
806 const TopTools_ListOfShape & ancestorsInSolid = MS.FindFromKey(aVertex);
807 const TopTools_ListOfShape & ancestorsInFace = MF.FindFromKey(aVertex);
808 // SCRUTE(ancestorsInSolid.Extent());
809 // SCRUTE(ancestorsInFace.Extent());
810 ASSERT(ancestorsInSolid.Extent() == 6); // 6 (edges doublees)
811 ASSERT(ancestorsInFace.Extent() == 2);
815 TopTools_ListIteratorOfListOfShape its(ancestorsInSolid);
816 for (; its.More(); its.Next())
818 TopoDS_Shape ancestor = its.Value();
819 TopTools_ListIteratorOfListOfShape itf(ancestorsInFace);
820 bool isInFace = false;
821 for (; itf.More(); itf.Next())
823 TopoDS_Shape ancestorInFace = itf.Value();
824 if (ancestorInFace.IsSame(ancestor))
832 E = TopoDS::Edge(ancestor);
839 //=============================================================================
843 //=============================================================================
845 void StdMeshers_Hexa_3D::GetConv2DCoefs(const faceQuadStruct & quad,
846 const TopoDS_Shape & aShape,
847 const TopoDS_Vertex & V0,
848 const TopoDS_Vertex & V1,
849 const TopoDS_Vertex & V2, const TopoDS_Vertex & V3, Conv2DStruct & conv)
851 // MESSAGE("StdMeshers_Hexa_3D::GetConv2DCoefs");
852 // const TopoDS_Face & F = TopoDS::Face(aShape);
853 // TopoDS_Edge E = quad.edge[0];
855 // Handle(Geom2d_Curve) C2d = BRep_Tool::CurveOnSurface(E, F, f, l);
856 // TopoDS_Vertex VFirst, VLast;
857 // TopExp::Vertices(E, VFirst, VLast); // corresponds to f and l
858 // bool isForward = (((l - f) * (quad.last[0] - quad.first[0])) > 0);
859 TopoDS_Vertex VA, VB;
870 VA = quad.side[0]->FirstVertex();
871 VB = quad.side[0]->LastVertex();
873 int a1, b1, c1, a2, b2, c2;
886 ASSERT(VB.IsSame(V3));
906 ASSERT(VB.IsSame(V0));
926 ASSERT(VB.IsSame(V1));
946 ASSERT(VB.IsSame(V2));
954 // MESSAGE("X = " << c1 << "+ " << a1 << "*x + " << b1 << "*y");
955 // MESSAGE("Y = " << c2 << "+ " << a2 << "*x + " << b2 << "*y");
963 int nbdown = quad.side[0]->NbPoints();
964 int nbright = quad.side[1]->NbPoints();
968 int (c1 * a1 * a1) * (nbdown - 1) + int (c1 * b1 * b1) * (nbright - 1);
972 int (c2 * a2 * a2) * (nbdown - 1) + int (c2 * b2 * b2) * (nbright - 1);
973 // MESSAGE("I " << conv.ia << " " << conv.ib << " " << conv.ic);
974 // MESSAGE("J " << conv.ja << " " << conv.jb << " " << conv.jc);
977 //================================================================================
979 * \brief Find a vertex opposite to the given vertex of aQuads[0]
980 * \param aVertex - the vertex
981 * \param aFace - the face aVertex belongs to
982 * \param aQuads - quads
983 * \retval TopoDS_Vertex - found vertex
985 //================================================================================
987 TopoDS_Vertex StdMeshers_Hexa_3D::OppositeVertex(const TopoDS_Vertex& aVertex,
988 const TopTools_IndexedMapOfShape& aQuads0Vertices,
989 FaceQuadStruct* aQuads[6])
992 for ( i = 1; i < 6; ++i )
994 TopoDS_Vertex VV[] = { aQuads[i]->side[0]->FirstVertex(),
995 aQuads[i]->side[0]->LastVertex() ,
996 aQuads[i]->side[2]->LastVertex() ,
997 aQuads[i]->side[2]->FirstVertex() };
998 for ( j = 0; j < 4; ++j )
999 if ( aVertex.IsSame( VV[ j ]))
1002 int jPrev = j ? j - 1 : 3;
1003 int jNext = (j + 1) % 4;
1004 if ( aQuads0Vertices.Contains( VV[ jPrev ] ))
1010 return TopoDS_Vertex();
1013 //modified by NIZNHY-PKV Wed Nov 17 15:34:13 2004 f
1014 ///////////////////////////////////////////////////////////////////////////////
1016 //#include <stdio.h>
1018 //=======================================================================
1019 //function : ComputePentahedralMesh
1021 //=======================================================================
1023 SMESH_ComputeErrorPtr ComputePentahedralMesh(SMESH_Mesh & aMesh,
1024 const TopoDS_Shape & aShape)
1026 //printf(" ComputePentahedralMesh HERE\n");
1029 SMESH_ComputeErrorPtr err = SMESH_ComputeError::New();
1031 StdMeshers_Penta_3D anAlgo;
1033 bOK=anAlgo.Compute(aMesh, aShape);
1035 err = anAlgo.GetComputeError();
1037 if ( !bOK && anAlgo.ErrorStatus() == 5 )
1039 static StdMeshers_Prism_3D * aPrism3D = 0;
1041 SMESH_Gen* gen = aMesh.GetGen();
1042 aPrism3D = new StdMeshers_Prism_3D( gen->GetANewId(), 0, gen );
1044 SMESH_Hypothesis::Hypothesis_Status aStatus;
1045 if ( aPrism3D->CheckHypothesis( aMesh, aShape, aStatus ) ) {
1046 bOK = aPrism3D->Compute( aMesh, aShape );
1047 err = aPrism3D->GetComputeError();