src/StdMeshers/StdMeshers_Hexa_3D.cxx

   1 //  SMESH SMESH : implementaion of SMESH idl descriptions
   2 //
   3 //  Copyright (C) 2003  OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
   4 //  CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
   5 //
   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.
  10 //
  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.
  15 //
  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
  19 //
  20 //  See http://www.opencascade.org/SALOME/ or email : webmaster.salome@opencascade.org
  21 //
  22 //
  23 //
  24 //  File   : StdMeshers_Hexa_3D.cxx
  25 //           Moved here from SMESH_Hexa_3D.cxx
  26 //  Author : Paul RASCLE, EDF
  27 //  Module : SMESH
  28 //  $Header$
  29
  30 using namespace std;
  31 #include "StdMeshers_Hexa_3D.hxx"
  32 #include "StdMeshers_Quadrangle_2D.hxx"
  33 #include "SMESH_Gen.hxx"
  34 #include "SMESH_Mesh.hxx"
  35
  36 #include "SMDS_MeshElement.hxx"
  37 #include "SMDS_MeshNode.hxx"
  38 #include "SMDS_FacePosition.hxx"
  39
  40 #include <TopExp.hxx>
  41 #include <TopTools_IndexedDataMapOfShapeListOfShape.hxx>
  42 #include <TopTools_ListOfShape.hxx>
  43 #include <TopTools_ListIteratorOfListOfShape.hxx>
  44 #include <TColStd_ListIteratorOfListOfInteger.hxx>
  45
  46 #include <BRep_Tool.hxx>
  47 #include <Geom_Surface.hxx>
  48 #include <Geom_Curve.hxx>
  49 #include <Geom2d_Curve.hxx>
  50 #include <Handle_Geom2d_Curve.hxx>
  51 #include <Handle_Geom_Curve.hxx>
  52
  53 #include "utilities.h"
  54 #include "Utils_ExceptHandlers.hxx"
  55
  56
  57 //=============================================================================
  58 /*!
  59  *
  60  */
  61 //=============================================================================
  62
  63 StdMeshers_Hexa_3D::StdMeshers_Hexa_3D(int hypId, int studyId,
  64         SMESH_Gen * gen):SMESH_3D_Algo(hypId, studyId, gen)
  65 {
  66         MESSAGE("StdMeshers_Hexa_3D::StdMeshers_Hexa_3D");
  67         _name = "Hexa_3D";
  68 //   _shapeType = TopAbs_SOLID;
  69         _shapeType = (1 << TopAbs_SHELL) | (1 << TopAbs_SOLID); // 1 bit /shape type
  70 //   MESSAGE("_shapeType octal " << oct << _shapeType);
  71         for (int i = 0; i < 6; i++)
  72                 _quads[i] = 0;
  73 }
  74
  75 //=============================================================================
  76 /*!
  77  *
  78  */
  79 //=============================================================================
  80
  81 StdMeshers_Hexa_3D::~StdMeshers_Hexa_3D()
  82 {
  83         MESSAGE("StdMeshers_Hexa_3D::~StdMeshers_Hexa_3D");
  84 }
  85
  86 //=============================================================================
  87 /*!
  88  *
  89  */
  90 //=============================================================================
  91
  92 bool StdMeshers_Hexa_3D::CheckHypothesis
  93                          (SMESH_Mesh& aMesh,
  94                           const TopoDS_Shape& aShape,
  95                           SMESH_Hypothesis::Hypothesis_Status& aStatus)
  96 {
  97         MESSAGE("StdMeshers_Hexa_3D::CheckHypothesis");
  98
  99         bool isOk = true;
 100         aStatus = SMESH_Hypothesis::HYP_OK;
 101
 102         // nothing to check
 103
 104         return isOk;
 105 }
 106
 107 //=============================================================================
 108 /*!
 109  * Hexahedron mesh on hexaedron like form
 110  * -0.  - shape and face mesh verification
 111  * -1.  - identify faces and vertices of the "cube"
 112  * -2.  - Algorithm from:
 113  * "Application de l'interpolation transfinie à la création de maillages
 114  *  C0 ou G1 continus sur des triangles, quadrangles, tetraedres, pentaedres
 115  *  et hexaedres déformés."
 116  * Alain PERONNET - 8 janvier 1999
 117  */
 118 //=============================================================================
 119
 120 bool StdMeshers_Hexa_3D::Compute(SMESH_Mesh & aMesh,
 121         const TopoDS_Shape & aShape)throw(SALOME_Exception)
 122 {
 123   Unexpect aCatch(SalomeException);
 124         MESSAGE("StdMeshers_Hexa_3D::Compute");
 125
 126         bool isOk = false;
 127         SMESHDS_Mesh * meshDS = aMesh.GetMeshDS();
 128         SMESH_subMesh *theSubMesh = aMesh.GetSubMesh(aShape);
 129         //const SMESHDS_SubMesh *& subMeshDS = theSubMesh->GetSubMeshDS();
 130
 131         // 0.  - shape and face mesh verification
 132         // 0.1 - shape must be a solid (or a shell) with 6 faces
 133         MESSAGE("---");
 134
 135         vector < SMESH_subMesh * >meshFaces;
 136         for (TopExp_Explorer exp(aShape, TopAbs_FACE); exp.More(); exp.Next())
 137         {
 138                 SMESH_subMesh *aSubMesh = aMesh.GetSubMeshContaining(exp.Current());
 139                 ASSERT(aSubMesh);
 140                 meshFaces.push_back(aSubMesh);
 141         }
 142         if (meshFaces.size() != 6)
 143         {
 144                 SCRUTE(meshFaces.size());
 145                 ASSERT(0);
 146                 return false;
 147         }
 148
 149         // 0.2 - is each face meshed with Quadrangle_2D? (so, with a wire of 4 edges)
 150         MESSAGE("---");
 151
 152         for (int i = 0; i < 6; i++)
 153         {
 154                 TopoDS_Shape aShape = meshFaces[i]->GetSubShape();
 155                 SMESH_Algo *algo = _gen->GetAlgo(aMesh, aShape);
 156                 string algoName = algo->GetName();
 157                 if (algoName != "Quadrangle_2D")
 158                 {
 159                         // *** delete _quads
 160                         SCRUTE(algoName);
 161                         ASSERT(0);
 162                         return false;
 163                 }
 164                 StdMeshers_Quadrangle_2D *quadAlgo =
 165                         dynamic_cast < StdMeshers_Quadrangle_2D * >(algo);
 166                 ASSERT(quadAlgo);
 167                 try
 168                 {
 169                         _quads[i] = quadAlgo->CheckAnd2Dcompute(aMesh, aShape);
 170                         // *** to delete after usage
 171                 }
 172                 catch(SALOME_Exception & S_ex)
 173                 {
 174                         // *** delete _quads
 175                         // *** throw exception
 176                         ASSERT(0);
 177                 }
 178         }
 179
 180         // 1.  - identify faces and vertices of the "cube"
 181         // 1.1 - ancestor maps vertex->edges in the cube
 182         MESSAGE("---");
 183
 184         TopTools_IndexedDataMapOfShapeListOfShape MS;
 185         TopExp::MapShapesAndAncestors(aShape, TopAbs_VERTEX, TopAbs_EDGE, MS);
 186
 187         // 1.2 - first face is choosen as face Y=0 of the unit cube
 188         MESSAGE("---");
 189
 190         const TopoDS_Shape & aFace = meshFaces[0]->GetSubShape();
 191         const TopoDS_Face & F = TopoDS::Face(aFace);
 192
 193         // 1.3 - identify the 4 vertices of the face Y=0: V000, V100, V101, V001
 194         MESSAGE("---");
 195
 196         int i = 0;
 197         TopoDS_Edge E = _quads[0]->edge[i];     //edge will be Y=0,Z=0 on unit cube
 198         double f, l;
 199         Handle(Geom2d_Curve) C2d = BRep_Tool::CurveOnSurface(E, F, f, l);
 200         TopoDS_Vertex VFirst, VLast;
 201         TopExp::Vertices(E, VFirst, VLast);     // corresponds to f and l
 202         bool isForward =
 203                 (((l - f) * (_quads[0]->last[i] - _quads[0]->first[i])) > 0);
 204
 205         if (isForward)
 206         {
 207                 _cube.V000 = VFirst;    // will be (0,0,0) on the unit cube
 208                 _cube.V100 = VLast;             // will be (1,0,0) on the unit cube
 209         }
 210         else
 211         {
 212                 _cube.V000 = VLast;
 213                 _cube.V100 = VFirst;
 214         }
 215
 216         i = 1;
 217         E = _quads[0]->edge[i];
 218         C2d = BRep_Tool::CurveOnSurface(E, F, f, l);
 219         TopExp::Vertices(E, VFirst, VLast);
 220         isForward = (((l - f) * (_quads[0]->last[i] - _quads[0]->first[i])) > 0);
 221         if (isForward)
 222                 _cube.V101 = VLast;             // will be (1,0,1) on the unit cube
 223         else
 224                 _cube.V101 = VFirst;
 225
 226         i = 2;
 227         E = _quads[0]->edge[i];
 228         C2d = BRep_Tool::CurveOnSurface(E, F, f, l);
 229         TopExp::Vertices(E, VFirst, VLast);
 230         isForward = (((l - f) * (_quads[0]->last[i] - _quads[0]->first[i])) > 0);
 231         if (isForward)
 232                 _cube.V001 = VLast;             // will be (0,0,1) on the unit cube
 233         else
 234                 _cube.V001 = VFirst;
 235
 236         // 1.4 - find edge X=0, Z=0 (ancestor of V000 not in face Y=0)
 237         //     - find edge X=1, Z=0 (ancestor of V100 not in face Y=0)
 238         //     - find edge X=1, Z=1 (ancestor of V101 not in face Y=0)
 239         //     - find edge X=0, Z=1 (ancestor of V001 not in face Y=0)
 240         MESSAGE("---");
 241
 242         TopoDS_Edge E_0Y0 = EdgeNotInFace(aMesh, aShape, F, _cube.V000, MS);
 243         ASSERT(!E_0Y0.IsNull());
 244
 245         TopoDS_Edge E_1Y0 = EdgeNotInFace(aMesh, aShape, F, _cube.V100, MS);
 246         ASSERT(!E_1Y0.IsNull());
 247
 248         TopoDS_Edge E_1Y1 = EdgeNotInFace(aMesh, aShape, F, _cube.V101, MS);
 249         ASSERT(!E_1Y1.IsNull());
 250
 251         TopoDS_Edge E_0Y1 = EdgeNotInFace(aMesh, aShape, F, _cube.V001, MS);
 252         ASSERT(!E_0Y1.IsNull());
 253
 254         // 1.5 - identify the 4 vertices in face Y=1: V010, V110, V111, V011
 255         MESSAGE("---");
 256
 257         TopExp::Vertices(E_0Y0, VFirst, VLast);
 258         if (VFirst.IsSame(_cube.V000))
 259                 _cube.V010 = VLast;
 260         else
 261                 _cube.V010 = VFirst;
 262
 263         TopExp::Vertices(E_1Y0, VFirst, VLast);
 264         if (VFirst.IsSame(_cube.V100))
 265                 _cube.V110 = VLast;
 266         else
 267                 _cube.V110 = VFirst;
 268
 269         TopExp::Vertices(E_1Y1, VFirst, VLast);
 270         if (VFirst.IsSame(_cube.V101))
 271                 _cube.V111 = VLast;
 272         else
 273                 _cube.V111 = VFirst;
 274
 275         TopExp::Vertices(E_0Y1, VFirst, VLast);
 276         if (VFirst.IsSame(_cube.V001))
 277                 _cube.V011 = VLast;
 278         else
 279                 _cube.V011 = VFirst;
 280
 281         // 1.6 - find remaining faces given 4 vertices
 282         MESSAGE("---");
 283
 284         _indY0 = 0;
 285         _cube.quad_Y0 = _quads[_indY0];
 286
 287         _indY1 = GetFaceIndex(aMesh, aShape, meshFaces,
 288                 _cube.V010, _cube.V011, _cube.V110, _cube.V111);
 289         _cube.quad_Y1 = _quads[_indY1];
 290
 291         _indZ0 = GetFaceIndex(aMesh, aShape, meshFaces,
 292                 _cube.V000, _cube.V010, _cube.V100, _cube.V110);
 293         _cube.quad_Z0 = _quads[_indZ0];
 294
 295         _indZ1 = GetFaceIndex(aMesh, aShape, meshFaces,
 296                 _cube.V001, _cube.V011, _cube.V101, _cube.V111);
 297         _cube.quad_Z1 = _quads[_indZ1];
 298
 299         _indX0 = GetFaceIndex(aMesh, aShape, meshFaces,
 300                 _cube.V000, _cube.V001, _cube.V010, _cube.V011);
 301         _cube.quad_X0 = _quads[_indX0];
 302
 303         _indX1 = GetFaceIndex(aMesh, aShape, meshFaces,
 304                 _cube.V100, _cube.V101, _cube.V110, _cube.V111);
 305         _cube.quad_X1 = _quads[_indX1];
 306
 307         MESSAGE("---");
 308
 309         // 1.7 - get convertion coefs from face 2D normalized to 3D normalized
 310
 311         Conv2DStruct cx0;                       // for face X=0
 312         Conv2DStruct cx1;                       // for face X=1
 313         Conv2DStruct cy0;
 314         Conv2DStruct cy1;
 315         Conv2DStruct cz0;
 316         Conv2DStruct cz1;
 317
 318         GetConv2DCoefs(*_cube.quad_X0, meshFaces[_indX0]->GetSubShape(),
 319                 _cube.V000, _cube.V010, _cube.V011, _cube.V001, cx0);
 320         GetConv2DCoefs(*_cube.quad_X1, meshFaces[_indX1]->GetSubShape(),
 321                 _cube.V100, _cube.V110, _cube.V111, _cube.V101, cx1);
 322         GetConv2DCoefs(*_cube.quad_Y0, meshFaces[_indY0]->GetSubShape(),
 323                 _cube.V000, _cube.V100, _cube.V101, _cube.V001, cy0);
 324         GetConv2DCoefs(*_cube.quad_Y1, meshFaces[_indY1]->GetSubShape(),
 325                 _cube.V010, _cube.V110, _cube.V111, _cube.V011, cy1);
 326         GetConv2DCoefs(*_cube.quad_Z0, meshFaces[_indZ0]->GetSubShape(),
 327                 _cube.V000, _cube.V100, _cube.V110, _cube.V010, cz0);
 328         GetConv2DCoefs(*_cube.quad_Z1, meshFaces[_indZ1]->GetSubShape(),
 329                 _cube.V001, _cube.V101, _cube.V111, _cube.V011, cz1);
 330
 331         // 1.8 - create a 3D structure for normalized values
 332
 333         MESSAGE("---");
 334         int nbx = _cube.quad_Y0->nbPts[0];
 335         int nby = _cube.quad_Y0->nbPts[1];
 336         int nbz;
 337         if (cx0.a1 != 0)
 338                 nbz = _cube.quad_X0->nbPts[1];
 339         else
 340                 nbz = _cube.quad_X0->nbPts[0];
 341         //SCRUTE(nbx);
 342         //SCRUTE(nby);
 343         //SCRUTE(nbz);
 344         int nbxyz = nbx * nby * nbz;
 345         Point3DStruct *np = new Point3DStruct[nbxyz];
 346
 347         // 1.9 - store node indexes of faces
 348
 349         {
 350                 const TopoDS_Face & F = TopoDS::Face(meshFaces[_indX0]->GetSubShape());
 351
 352                 faceQuadStruct *quad = _cube.quad_X0;
 353                 int i = 0;                              // j = x/face , k = y/face
 354                 int nbdown = quad->nbPts[0];
 355                 int nbright = quad->nbPts[1];
 356
 357
 358                 SMDS_NodeIteratorPtr itf= aMesh.GetSubMesh(F)->GetSubMeshDS()->GetNodes();
 359
 360                 while(itf->more())
 361                 {
 362                         const SMDS_MeshNode * node = itf->next();
 363                         const SMDS_FacePosition* fpos =
 364                           static_cast<const SMDS_FacePosition*>(node->GetPosition().get());
 365                         double ri = fpos->GetUParameter();
 366                         double rj = fpos->GetVParameter();
 367                         int i1 = int (ri);
 368                         int j1 = int (rj);
 369                         int ij1 = j1 * nbdown + i1;
 370                         quad->uv_grid[ij1].node = node;
 371                 }
 372
 373                 for (int i1 = 0; i1 < nbdown; i1++)
 374                         for (int j1 = 0; j1 < nbright; j1++)
 375                         {
 376                                 int ij1 = j1 * nbdown + i1;
 377                                 int j = cx0.ia * i1 + cx0.ib * j1 + cx0.ic;     // j = x/face
 378                                 int k = cx0.ja * i1 + cx0.jb * j1 + cx0.jc;     // k = y/face
 379                                 int ijk = k * nbx * nby + j * nbx + i;
 380                                 //MESSAGE(" "<<ij1<<" "<<i<<" "<<j<<" "<<ijk);
 381                                 np[ijk].node = quad->uv_grid[ij1].node;
 382                                 //SCRUTE(np[ijk].nodeId);
 383                         }
 384         }
 385
 386         {
 387                 const TopoDS_Face & F = TopoDS::Face(meshFaces[_indX1]->GetSubShape());
 388
 389                 SMDS_NodeIteratorPtr itf= aMesh.GetSubMesh(F)->GetSubMeshDS()->GetNodes();
 390
 391                 faceQuadStruct *quad = _cube.quad_X1;
 392                 int i = nbx - 1;                // j = x/face , k = y/face
 393                 int nbdown = quad->nbPts[0];
 394                 int nbright = quad->nbPts[1];
 395
 396                 while(itf->more())
 397                 {
 398                         const SMDS_MeshNode * node = itf->next();
 399                         const SMDS_FacePosition* fpos =
 400                           static_cast<const SMDS_FacePosition*>(node->GetPosition().get());
 401                         double ri = fpos->GetUParameter();
 402                         double rj = fpos->GetVParameter();
 403                         int i1 = int (ri);
 404                         int j1 = int (rj);
 405                         int ij1 = j1 * nbdown + i1;
 406                         quad->uv_grid[ij1].node = node;
 407                 }
 408
 409                 for (int i1 = 0; i1 < nbdown; i1++)
 410                         for (int j1 = 0; j1 < nbright; j1++)
 411                         {
 412                                 int ij1 = j1 * nbdown + i1;
 413                                 int j = cx1.ia * i1 + cx1.ib * j1 + cx1.ic;     // j = x/face
 414                                 int k = cx1.ja * i1 + cx1.jb * j1 + cx1.jc;     // k = y/face
 415                                 int ijk = k * nbx * nby + j * nbx + i;
 416                                 //MESSAGE(" "<<ij1<<" "<<i<<" "<<j<<" "<<ijk);
 417                                 np[ijk].node = quad->uv_grid[ij1].node;
 418                                 //SCRUTE(np[ijk].nodeId);
 419                         }
 420         }
 421
 422         {
 423                 const TopoDS_Face & F = TopoDS::Face(meshFaces[_indY0]->GetSubShape());
 424
 425                 SMDS_NodeIteratorPtr itf= aMesh.GetSubMesh(F)->GetSubMeshDS()->GetNodes();
 426
 427                 faceQuadStruct *quad = _cube.quad_Y0;
 428                 int j = 0;                              // i = x/face , k = y/face
 429                 int nbdown = quad->nbPts[0];
 430                 int nbright = quad->nbPts[1];
 431
 432                 while(itf->more())
 433                 {
 434                         const SMDS_MeshNode * node = itf->next();
 435                         const SMDS_FacePosition * fpos =
 436                           static_cast<const SMDS_FacePosition*>(node->GetPosition().get());
 437                         double ri = fpos->GetUParameter();
 438                         double rj = fpos->GetVParameter();
 439                         int i1 = int (ri);
 440                         int j1 = int (rj);
 441                         int ij1 = j1 * nbdown + i1;
 442                         quad->uv_grid[ij1].node = node;
 443                 }
 444
 445                 for (int i1 = 0; i1 < nbdown; i1++)
 446                         for (int j1 = 0; j1 < nbright; j1++)
 447                         {
 448                                 int ij1 = j1 * nbdown + i1;
 449                                 int i = cy0.ia * i1 + cy0.ib * j1 + cy0.ic;     // i = x/face
 450                                 int k = cy0.ja * i1 + cy0.jb * j1 + cy0.jc;     // k = y/face
 451                                 int ijk = k * nbx * nby + j * nbx + i;
 452                                 //MESSAGE(" "<<ij1<<" "<<i<<" "<<j<<" "<<ijk);
 453                                 np[ijk].node = quad->uv_grid[ij1].node;
 454                                 //SCRUTE(np[ijk].nodeId);
 455                         }
 456         }
 457
 458         {
 459                 const TopoDS_Face & F = TopoDS::Face(meshFaces[_indY1]->GetSubShape());
 460
 461                 SMDS_NodeIteratorPtr itf= aMesh.GetSubMesh(F)->GetSubMeshDS()->GetNodes();
 462
 463                 faceQuadStruct *quad = _cube.quad_Y1;
 464                 int j = nby - 1;                // i = x/face , k = y/face
 465                 int nbdown = quad->nbPts[0];
 466                 int nbright = quad->nbPts[1];
 467
 468                 while(itf->more())
 469                 {
 470                         const SMDS_MeshNode * node = itf->next();
 471                         const SMDS_FacePosition* fpos =
 472                           static_cast<const SMDS_FacePosition *>(node->GetPosition().get());
 473                         double ri = fpos->GetUParameter();
 474                         double rj = fpos->GetVParameter();
 475                         int i1 = int (ri);
 476                         int j1 = int (rj);
 477                         int ij1 = j1 * nbdown + i1;
 478                         quad->uv_grid[ij1].node = node;
 479                 }
 480
 481                 for (int i1 = 0; i1 < nbdown; i1++)
 482                         for (int j1 = 0; j1 < nbright; j1++)
 483                         {
 484                                 int ij1 = j1 * nbdown + i1;
 485                                 int i = cy1.ia * i1 + cy1.ib * j1 + cy1.ic;     // i = x/face
 486                                 int k = cy1.ja * i1 + cy1.jb * j1 + cy1.jc;     // k = y/face
 487                                 int ijk = k * nbx * nby + j * nbx + i;
 488                                 //MESSAGE(" "<<ij1<<" "<<i<<" "<<j<<" "<<ijk);
 489                                 np[ijk].node = quad->uv_grid[ij1].node;
 490                                 //SCRUTE(np[ijk].nodeId);
 491                         }
 492         }
 493
 494         {
 495                 const TopoDS_Face & F = TopoDS::Face(meshFaces[_indZ0]->GetSubShape());
 496
 497                 SMDS_NodeIteratorPtr itf= aMesh.GetSubMesh(F)->GetSubMeshDS()->GetNodes();
 498
 499                 faceQuadStruct *quad = _cube.quad_Z0;
 500                 int k = 0;                              // i = x/face , j = y/face
 501                 int nbdown = quad->nbPts[0];
 502                 int nbright = quad->nbPts[1];
 503
 504                 while(itf->more())
 505                 {
 506                         const SMDS_MeshNode * node = itf->next();
 507                         const SMDS_FacePosition * fpos =
 508                           static_cast<const SMDS_FacePosition*>(node->GetPosition().get());
 509                         double ri = fpos->GetUParameter();
 510                         double rj = fpos->GetVParameter();
 511                         int i1 = int (ri);
 512                         int j1 = int (rj);
 513                         int ij1 = j1 * nbdown + i1;
 514                         quad->uv_grid[ij1].node = node;
 515                 }
 516
 517                 for (int i1 = 0; i1 < nbdown; i1++)
 518                         for (int j1 = 0; j1 < nbright; j1++)
 519                         {
 520                                 int ij1 = j1 * nbdown + i1;
 521                                 int i = cz0.ia * i1 + cz0.ib * j1 + cz0.ic;     // i = x/face
 522                                 int j = cz0.ja * i1 + cz0.jb * j1 + cz0.jc;     // j = y/face
 523                                 int ijk = k * nbx * nby + j * nbx + i;
 524                                 //MESSAGE(" "<<ij1<<" "<<i<<" "<<j<<" "<<ijk);
 525                                 np[ijk].node = quad->uv_grid[ij1].node;
 526                                 //SCRUTE(np[ijk].nodeId);
 527                         }
 528         }
 529
 530         {
 531                 const TopoDS_Face & F = TopoDS::Face(meshFaces[_indZ1]->GetSubShape());
 532
 533                 SMDS_NodeIteratorPtr itf= aMesh.GetSubMesh(F)->GetSubMeshDS()->GetNodes();
 534
 535                 faceQuadStruct *quad = _cube.quad_Z1;
 536                 int k = nbz - 1;                // i = x/face , j = y/face
 537                 int nbdown = quad->nbPts[0];
 538                 int nbright = quad->nbPts[1];
 539
 540                 while(itf->more())
 541                 {
 542                         const SMDS_MeshNode * node = itf->next();
 543                         const SMDS_FacePosition* fpos =
 544                           static_cast<const SMDS_FacePosition*>(node->GetPosition().get());
 545                         double ri = fpos->GetUParameter();
 546                         double rj = fpos->GetVParameter();
 547                         int i1 = int (ri);
 548                         int j1 = int (rj);
 549                         int ij1 = j1 * nbdown + i1;
 550                         quad->uv_grid[ij1].node = node;
 551                 }
 552
 553                 for (int i1 = 0; i1 < nbdown; i1++)
 554                         for (int j1 = 0; j1 < nbright; j1++)
 555                         {
 556                                 int ij1 = j1 * nbdown + i1;
 557                                 int i = cz1.ia * i1 + cz1.ib * j1 + cz1.ic;     // i = x/face
 558                                 int j = cz1.ja * i1 + cz1.jb * j1 + cz1.jc;     // j = y/face
 559                                 int ijk = k * nbx * nby + j * nbx + i;
 560                                 //MESSAGE(" "<<ij1<<" "<<i<<" "<<j<<" "<<ijk);
 561                                 np[ijk].node = quad->uv_grid[ij1].node;
 562                                 //SCRUTE(np[ijk].nodeId);
 563                         }
 564         }
 565
 566         // 2.0 - for each node of the cube:
 567         //       - get the 8 points 3D = 8 vertices of the cube
 568         //       - get the 12 points 3D on the 12 edges of the cube
 569         //       - get the 6 points 3D on the 6 faces with their ID
 570         //       - compute the point 3D
 571         //       - store the point 3D in SMESHDS, store its ID in 3D structure
 572
 573         TopoDS_Shell aShell;
 574         TopExp_Explorer exp(aShape, TopAbs_SHELL);
 575         if (exp.More())
 576         {
 577                 aShell = TopoDS::Shell(exp.Current());
 578         }
 579         else
 580         {
 581                 MESSAGE("no shell...");
 582                 ASSERT(0);
 583         }
 584
 585         Pt3 p000, p001, p010, p011, p100, p101, p110, p111;
 586         Pt3 px00, px01, px10, px11;
 587         Pt3 p0y0, p0y1, p1y0, p1y1;
 588         Pt3 p00z, p01z, p10z, p11z;
 589         Pt3 pxy0, pxy1, px0z, px1z, p0yz, p1yz;
 590
 591         GetPoint(p000, 0, 0, 0, nbx, nby, nbz, np, meshDS);
 592         GetPoint(p001, 0, 0, nbz - 1, nbx, nby, nbz, np, meshDS);
 593         GetPoint(p010, 0, nby - 1, 0, nbx, nby, nbz, np, meshDS);
 594         GetPoint(p011, 0, nby - 1, nbz - 1, nbx, nby, nbz, np, meshDS);
 595         GetPoint(p100, nbx - 1, 0, 0, nbx, nby, nbz, np, meshDS);
 596         GetPoint(p101, nbx - 1, 0, nbz - 1, nbx, nby, nbz, np, meshDS);
 597         GetPoint(p110, nbx - 1, nby - 1, 0, nbx, nby, nbz, np, meshDS);
 598         GetPoint(p111, nbx - 1, nby - 1, nbz - 1, nbx, nby, nbz, np, meshDS);
 599
 600         for (int i = 1; i < nbx - 1; i++)
 601         {
 602                 for (int j = 1; j < nby - 1; j++)
 603                 {
 604                         for (int k = 1; k < nbz - 1; k++)
 605                         {
 606                                 // *** seulement maillage regulier
 607                                 // 12 points on edges
 608                                 GetPoint(px00, i, 0, 0, nbx, nby, nbz, np, meshDS);
 609                                 GetPoint(px01, i, 0, nbz - 1, nbx, nby, nbz, np, meshDS);
 610                                 GetPoint(px10, i, nby - 1, 0, nbx, nby, nbz, np, meshDS);
 611                                 GetPoint(px11, i, nby - 1, nbz - 1, nbx, nby, nbz, np, meshDS);
 612
 613                                 GetPoint(p0y0, 0, j, 0, nbx, nby, nbz, np, meshDS);
 614                                 GetPoint(p0y1, 0, j, nbz - 1, nbx, nby, nbz, np, meshDS);
 615                                 GetPoint(p1y0, nbx - 1, j, 0, nbx, nby, nbz, np, meshDS);
 616                                 GetPoint(p1y1, nbx - 1, j, nbz - 1, nbx, nby, nbz, np, meshDS);
 617
 618                                 GetPoint(p00z, 0, 0, k, nbx, nby, nbz, np, meshDS);
 619                                 GetPoint(p01z, 0, nby - 1, k, nbx, nby, nbz, np, meshDS);
 620                                 GetPoint(p10z, nbx - 1, 0, k, nbx, nby, nbz, np, meshDS);
 621                                 GetPoint(p11z, nbx - 1, nby - 1, k, nbx, nby, nbz, np, meshDS);
 622
 623                                 // 12 points on faces
 624                                 GetPoint(pxy0, i, j, 0, nbx, nby, nbz, np, meshDS);
 625                                 GetPoint(pxy1, i, j, nbz - 1, nbx, nby, nbz, np, meshDS);
 626                                 GetPoint(px0z, i, 0, k, nbx, nby, nbz, np, meshDS);
 627                                 GetPoint(px1z, i, nby - 1, k, nbx, nby, nbz, np, meshDS);
 628                                 GetPoint(p0yz, 0, j, k, nbx, nby, nbz, np, meshDS);
 629                                 GetPoint(p1yz, nbx - 1, j, k, nbx, nby, nbz, np, meshDS);
 630
 631                                 int ijk = k * nbx * nby + j * nbx + i;
 632                                 double x = double (i) / double (nbx - 1);       // *** seulement
 633                                 double y = double (j) / double (nby - 1);       // *** maillage
 634                                 double z = double (k) / double (nbz - 1);       // *** regulier
 635
 636                                 Pt3 X;
 637                                 for (int i = 0; i < 3; i++)
 638                                 {
 639                                         X[i] =
 640                                                 (1 - x) * p0yz[i] + x * p1yz[i]
 641                                                 + (1 - y) * px0z[i] + y * px1z[i]
 642                                                 + (1 - z) * pxy0[i] + z * pxy1[i]
 643                                                 - (1 - x) * ((1 - y) * p00z[i] + y * p01z[i])
 644                                                 - x * ((1 - y) * p10z[i] + y * p11z[i])
 645                                                 - (1 - y) * ((1 - z) * px00[i] + z * px01[i])
 646                                                 - y * ((1 - z) * px10[i] + z * px11[i])
 647                                                 - (1 - z) * ((1 - x) * p0y0[i] + x * p1y0[i])
 648                                                 - z * ((1 - x) * p0y1[i] + x * p1y1[i])
 649                                                 + (1 - x) * ((1 - y) * ((1 - z) * p000[i] + z * p001[i])
 650                                                 + y * ((1 - z) * p010[i] + z * p011[i]))
 651                                                 + x * ((1 - y) * ((1 - z) * p100[i] + z * p101[i])
 652                                                 + y * ((1 - z) * p110[i] + z * p111[i]));
 653                                 }
 654
 655                                 SMDS_MeshNode * node = meshDS->AddNode(X[0], X[1], X[2]);
 656                                 np[ijk].node = node;
 657                                 //meshDS->SetNodeInVolume(node, TopoDS::Solid(aShape));
 658                                 meshDS->SetNodeInVolume(node, aShell);
 659                         }
 660                 }
 661         }
 662
 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                         for (int k = 0; k < nbz - 1; k++)
 669                         {
 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;
 678
 679 //    MESSAGE(" "<<n1<<" "<<n2<<" "<<n3<<" "<<n4<<" "<<n5<<" "<<n6<<" "<<n7<<" "<<n8);
 680                                 //MESSAGE(" "<<np[n1].nodeId<<" "<<np[n2].nodeId<<" "<<np[n3].nodeId<<" "<<np[n4].nodeId<<" "<<np[n5].nodeId<<" "<<np[n6].nodeId<<" "<<np[n7].nodeId<<" "<<np[n8].nodeId);
 681
 682                                 SMDS_MeshVolume * elt = meshDS->AddVolume(np[n1].node,
 683                                         np[n2].node,
 684                                         np[n3].node,
 685                                         np[n4].node,
 686                                         np[n5].node,
 687                                         np[n6].node,
 688                                         np[n7].node,
 689                                         np[n8].node);
 690                                  ;
 691                                 meshDS->SetMeshElementOnShape(elt, aShell);
 692
 693                                 // *** 5 tetrahedres ... verifier orientations,
 694                                 //     mettre en coherence &vec quadrangles-> triangles
 695                                 //     choisir afficher 1 parmi edges, face et volumes
 696 //    int tetra1 = meshDS->AddVolume(np[n1].nodeId,
 697 //                   np[n2].nodeId,
 698 //                   np[n4].nodeId,
 699 //                   np[n5].nodeId);
 700 //    int tetra2 = meshDS->AddVolume(np[n2].nodeId,
 701 //                   np[n3].nodeId,
 702 //                   np[n4].nodeId,
 703 //                   np[n7].nodeId);
 704 //    int tetra3 = meshDS->AddVolume(np[n5].nodeId,
 705 //                   np[n6].nodeId,
 706 //                   np[n7].nodeId,
 707 //                   np[n2].nodeId);
 708 //    int tetra4 = meshDS->AddVolume(np[n5].nodeId,
 709 //                   np[n7].nodeId,
 710 //                   np[n8].nodeId,
 711 //                   np[n4].nodeId);
 712 //    int tetra5 = meshDS->AddVolume(np[n5].nodeId,
 713 //                   np[n7].nodeId,
 714 //                   np[n2].nodeId,
 715 //                   np[n4].nodeId);
 716
 717                         }
 718
 719         MESSAGE("End of StdMeshers_Hexa_3D::Compute()");
 720         return true;
 721 }
 722
 723 //=============================================================================
 724 /*!
 725  *
 726  */
 727 //=============================================================================
 728
 729 void StdMeshers_Hexa_3D::GetPoint(Pt3 p, int i, int j, int k, int nbx, int nby,
 730         int nbz, Point3DStruct * np, const SMESHDS_Mesh * meshDS)
 731 {
 732         int ijk = k * nbx * nby + j * nbx + i;
 733         const SMDS_MeshNode * node = np[ijk].node;
 734         p[0] = node->X();
 735         p[1] = node->Y();
 736         p[2] = node->Z();
 737         //MESSAGE(" "<<i<<" "<<j<<" "<<k<<" "<<p[0]<<" "<<p[1]<<" "<<p[2]);
 738 }
 739
 740 //=============================================================================
 741 /*!
 742  *
 743  */
 744 //=============================================================================
 745
 746 int StdMeshers_Hexa_3D::GetFaceIndex(SMESH_Mesh & aMesh,
 747         const TopoDS_Shape & aShape,
 748         const vector < SMESH_subMesh * >&meshFaces,
 749         const TopoDS_Vertex & V0,
 750         const TopoDS_Vertex & V1,
 751         const TopoDS_Vertex & V2, const TopoDS_Vertex & V3)
 752 {
 753         MESSAGE("StdMeshers_Hexa_3D::GetFaceIndex");
 754         int faceIndex = -1;
 755         for (int i = 1; i < 6; i++)
 756         {
 757                 const TopoDS_Shape & aFace = meshFaces[i]->GetSubShape();
 758                 //const TopoDS_Face& F = TopoDS::Face(aFace);
 759                 TopTools_IndexedMapOfShape M;
 760                 TopExp::MapShapes(aFace, TopAbs_VERTEX, M);
 761                 bool verticesInShape = false;
 762                 if (M.Contains(V0))
 763                         if (M.Contains(V1))
 764                                 if (M.Contains(V2))
 765                                         if (M.Contains(V3))
 766                                                 verticesInShape = true;
 767                 if (verticesInShape)
 768                 {
 769                         faceIndex = i;
 770                         break;
 771                 }
 772         }
 773         ASSERT(faceIndex > 0);
 774         SCRUTE(faceIndex);
 775         return faceIndex;
 776 }
 777
 778 //=============================================================================
 779 /*!
 780  *
 781  */
 782 //=============================================================================
 783
 784 TopoDS_Edge
 785         StdMeshers_Hexa_3D::EdgeNotInFace(SMESH_Mesh & aMesh,
 786         const TopoDS_Shape & aShape,
 787         const TopoDS_Face & aFace,
 788         const TopoDS_Vertex & aVertex,
 789         const TopTools_IndexedDataMapOfShapeListOfShape & MS)
 790 {
 791         MESSAGE("StdMeshers_Hexa_3D::EdgeNotInFace");
 792         TopTools_IndexedDataMapOfShapeListOfShape MF;
 793         TopExp::MapShapesAndAncestors(aFace, TopAbs_VERTEX, TopAbs_EDGE, MF);
 794         const TopTools_ListOfShape & ancestorsInSolid = MS.FindFromKey(aVertex);
 795         const TopTools_ListOfShape & ancestorsInFace = MF.FindFromKey(aVertex);
 796         SCRUTE(ancestorsInSolid.Extent());
 797         SCRUTE(ancestorsInFace.Extent());
 798         ASSERT(ancestorsInSolid.Extent() == 6); // 6 (edges doublees)
 799         ASSERT(ancestorsInFace.Extent() == 2);
 800
 801         TopoDS_Edge E;
 802         E.Nullify();
 803         TopTools_ListIteratorOfListOfShape its(ancestorsInSolid);
 804         for (; its.More(); its.Next())
 805         {
 806                 TopoDS_Shape ancestor = its.Value();
 807                 TopTools_ListIteratorOfListOfShape itf(ancestorsInFace);
 808                 bool isInFace = false;
 809                 for (; itf.More(); itf.Next())
 810                 {
 811                         TopoDS_Shape ancestorInFace = itf.Value();
 812                         if (ancestorInFace.IsSame(ancestor))
 813                         {
 814                                 isInFace = true;
 815                                 break;
 816                         }
 817                 }
 818                 if (!isInFace)
 819                 {
 820                         E = TopoDS::Edge(ancestor);
 821                         break;
 822                 }
 823         }
 824         return E;
 825 }
 826
 827 //=============================================================================
 828 /*!
 829  *
 830  */
 831 //=============================================================================
 832
 833 void StdMeshers_Hexa_3D::GetConv2DCoefs(const faceQuadStruct & quad,
 834         const TopoDS_Shape & aShape,
 835         const TopoDS_Vertex & V0,
 836         const TopoDS_Vertex & V1,
 837         const TopoDS_Vertex & V2, const TopoDS_Vertex & V3, Conv2DStruct & conv)
 838 {
 839         MESSAGE("StdMeshers_Hexa_3D::GetConv2DCoefs");
 840         const TopoDS_Face & F = TopoDS::Face(aShape);
 841         TopoDS_Edge E = quad.edge[0];
 842         double f, l;
 843         Handle(Geom2d_Curve) C2d = BRep_Tool::CurveOnSurface(E, F, f, l);
 844         TopoDS_Vertex VFirst, VLast;
 845         TopExp::Vertices(E, VFirst, VLast);     // corresponds to f and l
 846         bool isForward = (((l - f) * (quad.last[0] - quad.first[0])) > 0);
 847         TopoDS_Vertex VA, VB;
 848         if (isForward)
 849         {
 850                 VA = VFirst;
 851                 VB = VLast;
 852         }
 853         else
 854         {
 855                 VA = VLast;
 856                 VB = VFirst;
 857         }
 858         int a1, b1, c1, a2, b2, c2;
 859         if (VA.IsSame(V0))
 860                 if (VB.IsSame(V1))
 861                 {
 862                         a1 = 1;
 863                         b1 = 0;
 864                         c1 = 0;                         // x
 865                         a2 = 0;
 866                         b2 = 1;
 867                         c2 = 0;                         // y
 868                 }
 869                 else
 870                 {
 871                         ASSERT(VB.IsSame(V3));
 872                         a1 = 0;
 873                         b1 = 1;
 874                         c1 = 0;                         // y
 875                         a2 = 1;
 876                         b2 = 0;
 877                         c2 = 0;                         // x
 878                 }
 879         if (VA.IsSame(V1))
 880                 if (VB.IsSame(V2))
 881                 {
 882                         a1 = 0;
 883                         b1 = -1;
 884                         c1 = 1;                         // 1-y
 885                         a2 = 1;
 886                         b2 = 0;
 887                         c2 = 0;                         // x
 888                 }
 889                 else
 890                 {
 891                         ASSERT(VB.IsSame(V0));
 892                         a1 = -1;
 893                         b1 = 0;
 894                         c1 = 1;                         // 1-x
 895                         a2 = 0;
 896                         b2 = 1;
 897                         c2 = 0;                         // y
 898                 }
 899         if (VA.IsSame(V2))
 900                 if (VB.IsSame(V3))
 901                 {
 902                         a1 = -1;
 903                         b1 = 0;
 904                         c1 = 1;                         // 1-x
 905                         a2 = 0;
 906                         b2 = -1;
 907                         c2 = 1;                         // 1-y
 908                 }
 909                 else
 910                 {
 911                         ASSERT(VB.IsSame(V1));
 912                         a1 = 0;
 913                         b1 = -1;
 914                         c1 = 1;                         // 1-y
 915                         a2 = -1;
 916                         b2 = 0;
 917                         c2 = 1;                         // 1-x
 918                 }
 919         if (VA.IsSame(V3))
 920                 if (VB.IsSame(V0))
 921                 {
 922                         a1 = 0;
 923                         b1 = 1;
 924                         c1 = 0;                         // y
 925                         a2 = -1;
 926                         b2 = 0;
 927                         c2 = 1;                         // 1-x
 928                 }
 929                 else
 930                 {
 931                         ASSERT(VB.IsSame(V2));
 932                         a1 = 1;
 933                         b1 = 0;
 934                         c1 = 0;                         // x
 935                         a2 = 0;
 936                         b2 = -1;
 937                         c2 = 1;                         // 1-y
 938                 }
 939         MESSAGE("X = " << c1 << "+ " << a1 << "*x + " << b1 << "*y");
 940         MESSAGE("Y = " << c2 << "+ " << a2 << "*x + " << b2 << "*y");
 941         conv.a1 = a1;
 942         conv.b1 = b1;
 943         conv.c1 = c1;
 944         conv.a2 = a2;
 945         conv.b2 = b2;
 946         conv.c2 = c2;
 947
 948         int nbdown = quad.nbPts[0];
 949         int nbright = quad.nbPts[1];
 950         conv.ia = int (a1);
 951         conv.ib = int (b1);
 952         conv.ic =
 953                 int (c1 * a1 * a1) * (nbdown - 1) + int (c1 * b1 * b1) * (nbright - 1);
 954         conv.ja = int (a2);
 955         conv.jb = int (b2);
 956         conv.jc =
 957                 int (c2 * a2 * a2) * (nbdown - 1) + int (c2 * b2 * b2) * (nbright - 1);
 958         MESSAGE("I " << conv.ia << " " << conv.ib << " " << conv.ic);
 959         MESSAGE("J " << conv.ja << " " << conv.jb << " " << conv.jc);
 960 }
 961
 962 //=============================================================================
 963 /*!
 964  *
 965  */
 966 //=============================================================================
 967
 968 ostream & StdMeshers_Hexa_3D::SaveTo(ostream & save)
 969 {
 970   return save;
 971 }
 972
 973 //=============================================================================
 974 /*!
 975  *
 976  */
 977 //=============================================================================
 978
 979 istream & StdMeshers_Hexa_3D::LoadFrom(istream & load)
 980 {
 981   return load;
 982 }
 983
 984 //=============================================================================
 985 /*!
 986  *
 987  */
 988 //=============================================================================
 989
 990 ostream & operator <<(ostream & save, StdMeshers_Hexa_3D & hyp)
 991 {
 992   return hyp.SaveTo( save );
 993 }
 994
 995 //=============================================================================
 996 /*!
 997  *
 998  */
 999 //=============================================================================
1000
1001 istream & operator >>(istream & load, StdMeshers_Hexa_3D & hyp)
1002 {
1003   return hyp.LoadFrom( load );
1004 }