1 // Copyright (C) 2007-2008 CEA/DEN, EDF R&D, OPEN CASCADE
3 // Copyright (C) 2003-2007 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
22 // SMESH SMESH : implementaion of SMESH idl descriptions
23 // File : StdMeshers_Quadrangle_2D.cxx
24 // Moved here from SMESH_Quadrangle_2D.cxx
25 // Author : Paul RASCLE, EDF
28 #include "StdMeshers_Quadrangle_2D.hxx"
30 #include "StdMeshers_FaceSide.hxx"
32 #include "StdMeshers_QuadrangleParams.hxx"
34 #include "SMESH_Gen.hxx"
35 #include "SMESH_Mesh.hxx"
36 #include "SMESH_subMesh.hxx"
37 #include "SMESH_MesherHelper.hxx"
38 #include "SMESH_Block.hxx"
39 #include "SMESH_Comment.hxx"
41 #include "SMDS_MeshElement.hxx"
42 #include "SMDS_MeshNode.hxx"
43 #include "SMDS_EdgePosition.hxx"
44 #include "SMDS_FacePosition.hxx"
46 #include <BRepTools_WireExplorer.hxx>
47 #include <BRep_Tool.hxx>
48 #include <Geom_Surface.hxx>
49 #include <NCollection_DefineArray2.hxx>
50 #include <Precision.hxx>
51 #include <TColStd_SequenceOfReal.hxx>
52 #include <TColgp_SequenceOfXY.hxx>
54 #include <TopTools_ListIteratorOfListOfShape.hxx>
57 #include "utilities.h"
58 #include "Utils_ExceptHandlers.hxx"
60 #ifndef StdMeshers_Array2OfNode_HeaderFile
61 #define StdMeshers_Array2OfNode_HeaderFile
62 typedef const SMDS_MeshNode* SMDS_MeshNodePtr;
63 DEFINE_BASECOLLECTION (StdMeshers_BaseCollectionNodePtr, SMDS_MeshNodePtr)
64 DEFINE_ARRAY2(StdMeshers_Array2OfNode,
65 StdMeshers_BaseCollectionNodePtr, SMDS_MeshNodePtr)
71 typedef SMESH_Comment TComm;
73 //=============================================================================
77 //=============================================================================
79 StdMeshers_Quadrangle_2D::StdMeshers_Quadrangle_2D (int hypId, int studyId,
81 : SMESH_2D_Algo(hypId, studyId, gen)
83 MESSAGE("StdMeshers_Quadrangle_2D::StdMeshers_Quadrangle_2D");
84 _name = "Quadrangle_2D";
85 _shapeType = (1 << TopAbs_FACE);
86 _compatibleHypothesis.push_back("QuadrangleParams");
87 _compatibleHypothesis.push_back("QuadranglePreference");
88 _compatibleHypothesis.push_back("TrianglePreference");
92 //=============================================================================
96 //=============================================================================
98 StdMeshers_Quadrangle_2D::~StdMeshers_Quadrangle_2D()
100 MESSAGE("StdMeshers_Quadrangle_2D::~StdMeshers_Quadrangle_2D");
103 //=============================================================================
107 //=============================================================================
109 bool StdMeshers_Quadrangle_2D::CheckHypothesis
111 const TopoDS_Shape& aShape,
112 SMESH_Hypothesis::Hypothesis_Status& aStatus)
115 aStatus = SMESH_Hypothesis::HYP_OK;
117 const list <const SMESHDS_Hypothesis * >&hyps =
118 GetUsedHypothesis(aMesh, aShape, false);
119 const SMESHDS_Hypothesis *theHyp = 0;
121 if( hyps.size() == 1 ) {
123 theHyp = hyps.front();
124 if(strcmp("QuadrangleParams", theHyp->GetName()) == 0) {
125 const StdMeshers_QuadrangleParams* theHyp1 =
126 (const StdMeshers_QuadrangleParams*)theHyp;
127 myTriaVertexID = theHyp1->GetTriaVertex();
128 myQuadranglePreference= false;
129 myTrianglePreference= false;
131 if(strcmp("QuadranglePreference", theHyp->GetName()) == 0) {
132 myQuadranglePreference= true;
133 myTrianglePreference= false;
136 else if(strcmp("TrianglePreference", theHyp->GetName()) == 0){
137 myQuadranglePreference= false;
138 myTrianglePreference= true;
143 else if( hyps.size() > 1 ) {
144 theHyp = hyps.front();
145 if(strcmp("QuadrangleParams", theHyp->GetName()) == 0) {
146 const StdMeshers_QuadrangleParams* theHyp1 =
147 (const StdMeshers_QuadrangleParams*)theHyp;
148 myTriaVertexID = theHyp1->GetTriaVertex();
149 theHyp = hyps.back();
150 if(strcmp("QuadranglePreference", theHyp->GetName()) == 0) {
151 myQuadranglePreference= true;
152 myTrianglePreference= false;
154 else if(strcmp("TrianglePreference", theHyp->GetName()) == 0){
155 myQuadranglePreference= false;
156 myTrianglePreference= true;
160 if(strcmp("QuadranglePreference", theHyp->GetName()) == 0) {
161 myQuadranglePreference= true;
162 myTrianglePreference= false;
164 else if(strcmp("TrianglePreference", theHyp->GetName()) == 0){
165 myQuadranglePreference= false;
166 myTrianglePreference= true;
168 const StdMeshers_QuadrangleParams* theHyp2 =
169 (const StdMeshers_QuadrangleParams*)hyps.back();
170 myTriaVertexID = theHyp2->GetTriaVertex();
175 myQuadranglePreference = false;
176 myTrianglePreference = false;
183 //=============================================================================
187 //=============================================================================
189 bool StdMeshers_Quadrangle_2D::Compute (SMESH_Mesh& aMesh,
190 const TopoDS_Shape& aShape)// throw (SALOME_Exception)
192 // PAL14921. Enable catching std::bad_alloc and Standard_OutOfMemory outside
193 //Unexpect aCatchSalomeException);
195 SMESHDS_Mesh * meshDS = aMesh.GetMeshDS();
196 aMesh.GetSubMesh(aShape);
198 SMESH_MesherHelper helper(aMesh);
201 _quadraticMesh = myTool->IsQuadraticSubMesh(aShape);
203 FaceQuadStruct *quad = CheckNbEdges( aMesh, aShape );
204 std::auto_ptr<FaceQuadStruct> quadDeleter( quad ); // to delete quad at exit from Compute()
208 if(myQuadranglePreference) {
209 int n1 = quad->side[0]->NbPoints();
210 int n2 = quad->side[1]->NbPoints();
211 int n3 = quad->side[2]->NbPoints();
212 int n4 = quad->side[3]->NbPoints();
213 int nfull = n1+n2+n3+n4;
216 if( nfull==ntmp && ( (n1!=n3) || (n2!=n4) ) ) {
217 // special path for using only quandrangle faces
218 bool ok = ComputeQuadPref(aMesh, aShape, quad);
223 // set normalized grid on unit square in parametric domain
225 if (!SetNormalizedGrid(aMesh, aShape, quad))
228 // --- compute 3D values on points, store points & quadrangles
230 int nbdown = quad->side[0]->NbPoints();
231 int nbup = quad->side[2]->NbPoints();
233 int nbright = quad->side[1]->NbPoints();
234 int nbleft = quad->side[3]->NbPoints();
236 int nbhoriz = Min(nbdown, nbup);
237 int nbvertic = Min(nbright, nbleft);
239 const TopoDS_Face& F = TopoDS::Face(aShape);
240 Handle(Geom_Surface) S = BRep_Tool::Surface(F);
242 // internal mesh nodes
243 int i, j, geomFaceID = meshDS->ShapeToIndex( F );
244 for (i = 1; i < nbhoriz - 1; i++) {
245 for (j = 1; j < nbvertic - 1; j++) {
246 int ij = j * nbhoriz + i;
247 double u = quad->uv_grid[ij].u;
248 double v = quad->uv_grid[ij].v;
249 gp_Pnt P = S->Value(u, v);
250 SMDS_MeshNode * node = meshDS->AddNode(P.X(), P.Y(), P.Z());
251 meshDS->SetNodeOnFace(node, geomFaceID, u, v);
252 quad->uv_grid[ij].node = node;
259 // --.--.--.--.--.-- nbvertic
265 // ---.----.----.--- 0
266 // 0 > > > > > > > > nbhoriz
272 int iup = nbhoriz - 1;
273 if (quad->isEdgeOut[3]) { ilow++; } else { if (quad->isEdgeOut[1]) iup--; }
276 int jup = nbvertic - 1;
277 if (quad->isEdgeOut[0]) { jlow++; } else { if (quad->isEdgeOut[2]) jup--; }
279 // regular quadrangles
280 for (i = ilow; i < iup; i++) {
281 for (j = jlow; j < jup; j++) {
282 const SMDS_MeshNode *a, *b, *c, *d;
283 a = quad->uv_grid[j * nbhoriz + i].node;
284 b = quad->uv_grid[j * nbhoriz + i + 1].node;
285 c = quad->uv_grid[(j + 1) * nbhoriz + i + 1].node;
286 d = quad->uv_grid[(j + 1) * nbhoriz + i].node;
287 SMDS_MeshFace* face = myTool->AddFace(a, b, c, d);
289 meshDS->SetMeshElementOnShape(face, geomFaceID);
294 const vector<UVPtStruct>& uv_e0 = quad->side[0]->GetUVPtStruct(true,0 );
295 const vector<UVPtStruct>& uv_e1 = quad->side[1]->GetUVPtStruct(false,1);
296 const vector<UVPtStruct>& uv_e2 = quad->side[2]->GetUVPtStruct(true,1 );
297 const vector<UVPtStruct>& uv_e3 = quad->side[3]->GetUVPtStruct(false,0);
299 if ( uv_e0.empty() || uv_e1.empty() || uv_e2.empty() || uv_e3.empty() )
300 return error( COMPERR_BAD_INPUT_MESH );
302 double eps = Precision::Confusion();
304 // Boundary quadrangles
306 if (quad->isEdgeOut[0]) {
309 // |___|___|___|___|___|___|
311 // |___|___|___|___|___|___|
313 // |___|___|___|___|___|___| __ first row of the regular grid
314 // . . . . . . . . . __ down edge nodes
316 // >->->->->->->->->->->->-> -- direction of processing
318 int g = 0; // number of last processed node in the regular grid
320 // number of last node of the down edge to be processed
321 int stop = nbdown - 1;
322 // if right edge is out, we will stop at a node, previous to the last one
323 if (quad->isEdgeOut[1]) stop--;
325 // for each node of the down edge find nearest node
326 // in the first row of the regular grid and link them
327 for (i = 0; i < stop; i++) {
328 const SMDS_MeshNode *a, *b, *c, *d;
330 b = uv_e0[i + 1].node;
331 gp_Pnt pb (b->X(), b->Y(), b->Z());
333 // find node c in the regular grid, which will be linked with node b
336 // right bound reached, link with the rightmost node
338 c = quad->uv_grid[nbhoriz + iup].node;
341 // find in the grid node c, nearest to the b
342 double mind = RealLast();
343 for (int k = g; k <= iup; k++) {
345 const SMDS_MeshNode *nk;
346 if (k < ilow) // this can be, if left edge is out
347 nk = uv_e3[1].node; // get node from the left edge
349 nk = quad->uv_grid[nbhoriz + k].node; // get one of middle nodes
351 gp_Pnt pnk (nk->X(), nk->Y(), nk->Z());
352 double dist = pb.Distance(pnk);
353 if (dist < mind - eps) {
363 if (near == g) { // make triangle
364 SMDS_MeshFace* face = myTool->AddFace(a, b, c);
365 if(face) meshDS->SetMeshElementOnShape(face, geomFaceID);
367 else { // make quadrangle
371 d = quad->uv_grid[nbhoriz + near - 1].node;
372 //SMDS_MeshFace* face = meshDS->AddFace(a, b, c, d);
374 if(!myTrianglePreference){
375 SMDS_MeshFace* face = myTool->AddFace(a, b, c, d);
376 if(face) meshDS->SetMeshElementOnShape(face, geomFaceID);
379 SplitQuad(meshDS, geomFaceID, a, b, c, d);
382 // if node d is not at position g - make additional triangles
384 for (int k = near - 1; k > g; k--) {
385 c = quad->uv_grid[nbhoriz + k].node;
389 d = quad->uv_grid[nbhoriz + k - 1].node;
390 SMDS_MeshFace* face = myTool->AddFace(a, c, d);
391 if(face) meshDS->SetMeshElementOnShape(face, geomFaceID);
398 if (quad->isEdgeOut[2]) {
401 // <-<-<-<-<-<-<-<-<-<-<-<-< -- direction of processing
403 // . . . . . . . . . __ up edge nodes
404 // ___ ___ ___ ___ ___ ___ __ first row of the regular grid
406 // |___|___|___|___|___|___|
408 // |___|___|___|___|___|___|
411 int g = nbhoriz - 1; // last processed node in the regular grid
414 // if left edge is out, we will stop at a second node
415 if (quad->isEdgeOut[3]) stop++;
417 // for each node of the up edge find nearest node
418 // in the first row of the regular grid and link them
419 for (i = nbup - 1; i > stop; i--) {
420 const SMDS_MeshNode *a, *b, *c, *d;
422 b = uv_e2[i - 1].node;
423 gp_Pnt pb (b->X(), b->Y(), b->Z());
425 // find node c in the grid, which will be linked with node b
427 if (i == stop + 1) { // left bound reached, link with the leftmost node
428 c = quad->uv_grid[nbhoriz*(nbvertic - 2) + ilow].node;
431 // find node c in the grid, nearest to the b
432 double mind = RealLast();
433 for (int k = g; k >= ilow; k--) {
434 const SMDS_MeshNode *nk;
436 nk = uv_e1[nbright - 2].node;
438 nk = quad->uv_grid[nbhoriz*(nbvertic - 2) + k].node;
439 gp_Pnt pnk (nk->X(), nk->Y(), nk->Z());
440 double dist = pb.Distance(pnk);
441 if (dist < mind - eps) {
451 if (near == g) { // make triangle
452 SMDS_MeshFace* face = myTool->AddFace(a, b, c);
453 if(face) meshDS->SetMeshElementOnShape(face, geomFaceID);
455 else { // make quadrangle
457 d = uv_e1[nbright - 2].node;
459 d = quad->uv_grid[nbhoriz*(nbvertic - 2) + near + 1].node;
460 //SMDS_MeshFace* face = meshDS->AddFace(a, b, c, d);
461 if(!myTrianglePreference){
462 SMDS_MeshFace* face = myTool->AddFace(a, b, c, d);
463 if(face) meshDS->SetMeshElementOnShape(face, geomFaceID);
466 SplitQuad(meshDS, geomFaceID, a, b, c, d);
469 if (near + 1 < g) { // if d not is at g - make additional triangles
470 for (int k = near + 1; k < g; k++) {
471 c = quad->uv_grid[nbhoriz*(nbvertic - 2) + k].node;
473 d = uv_e1[nbright - 2].node;
475 d = quad->uv_grid[nbhoriz*(nbvertic - 2) + k + 1].node;
476 SMDS_MeshFace* face = myTool->AddFace(a, c, d);
477 if(face) meshDS->SetMeshElementOnShape(face, geomFaceID);
486 // right or left boundary quadrangles
487 if (quad->isEdgeOut[1]) {
488 // MESSAGE("right edge is out");
489 int g = 0; // last processed node in the grid
490 int stop = nbright - 1;
491 if (quad->isEdgeOut[2]) stop--;
492 for (i = 0; i < stop; i++) {
493 const SMDS_MeshNode *a, *b, *c, *d;
495 b = uv_e1[i + 1].node;
496 gp_Pnt pb (b->X(), b->Y(), b->Z());
498 // find node c in the grid, nearest to the b
500 if (i == stop - 1) { // up bondary reached
501 c = quad->uv_grid[nbhoriz*(jup + 1) - 2].node;
504 double mind = RealLast();
505 for (int k = g; k <= jup; k++) {
506 const SMDS_MeshNode *nk;
508 nk = uv_e0[nbdown - 2].node;
510 nk = quad->uv_grid[nbhoriz*(k + 1) - 2].node;
511 gp_Pnt pnk (nk->X(), nk->Y(), nk->Z());
512 double dist = pb.Distance(pnk);
513 if (dist < mind - eps) {
523 if (near == g) { // make triangle
524 SMDS_MeshFace* face = myTool->AddFace(a, b, c);
525 if(face) meshDS->SetMeshElementOnShape(face, geomFaceID);
527 else { // make quadrangle
529 d = uv_e0[nbdown - 2].node;
531 d = quad->uv_grid[nbhoriz*near - 2].node;
532 //SMDS_MeshFace* face = meshDS->AddFace(a, b, c, d);
534 if(!myTrianglePreference){
535 SMDS_MeshFace* face = myTool->AddFace(a, b, c, d);
536 if(face) meshDS->SetMeshElementOnShape(face, geomFaceID);
539 SplitQuad(meshDS, geomFaceID, a, b, c, d);
542 if (near - 1 > g) { // if d not is at g - make additional triangles
543 for (int k = near - 1; k > g; k--) {
544 c = quad->uv_grid[nbhoriz*(k + 1) - 2].node;
546 d = uv_e0[nbdown - 2].node;
548 d = quad->uv_grid[nbhoriz*k - 2].node;
549 SMDS_MeshFace* face = myTool->AddFace(a, c, d);
550 if(face) meshDS->SetMeshElementOnShape(face, geomFaceID);
557 if (quad->isEdgeOut[3]) {
558 // MESSAGE("left edge is out");
559 int g = nbvertic - 1; // last processed node in the grid
561 if (quad->isEdgeOut[0]) stop++;
562 for (i = nbleft - 1; i > stop; i--) {
563 const SMDS_MeshNode *a, *b, *c, *d;
565 b = uv_e3[i - 1].node;
566 gp_Pnt pb (b->X(), b->Y(), b->Z());
568 // find node c in the grid, nearest to the b
570 if (i == stop + 1) { // down bondary reached
571 c = quad->uv_grid[nbhoriz*jlow + 1].node;
574 double mind = RealLast();
575 for (int k = g; k >= jlow; k--) {
576 const SMDS_MeshNode *nk;
580 nk = quad->uv_grid[nbhoriz*k + 1].node;
581 gp_Pnt pnk (nk->X(), nk->Y(), nk->Z());
582 double dist = pb.Distance(pnk);
583 if (dist < mind - eps) {
593 if (near == g) { // make triangle
594 SMDS_MeshFace* face = myTool->AddFace(a, b, c);
595 if(face) meshDS->SetMeshElementOnShape(face, geomFaceID);
597 else { // make quadrangle
601 d = quad->uv_grid[nbhoriz*(near + 1) + 1].node;
602 //SMDS_MeshFace* face = meshDS->AddFace(a, b, c, d);
603 if(!myTrianglePreference){
604 SMDS_MeshFace* face = myTool->AddFace(a, b, c, d);
605 if(face) meshDS->SetMeshElementOnShape(face, geomFaceID);
608 SplitQuad(meshDS, geomFaceID, a, b, c, d);
611 if (near + 1 < g) { // if d not is at g - make additional triangles
612 for (int k = near + 1; k < g; k++) {
613 c = quad->uv_grid[nbhoriz*k + 1].node;
617 d = quad->uv_grid[nbhoriz*(k + 1) + 1].node;
618 SMDS_MeshFace* face = myTool->AddFace(a, c, d);
619 if(face) meshDS->SetMeshElementOnShape(face, geomFaceID);
633 //=============================================================================
637 //=============================================================================
639 bool StdMeshers_Quadrangle_2D::Evaluate(SMESH_Mesh& aMesh,
640 const TopoDS_Shape& aShape,
641 MapShapeNbElems& aResMap)
644 aMesh.GetSubMesh(aShape);
646 std::vector<int> aNbNodes(4);
647 bool IsQuadratic = false;
648 if( !CheckNbEdgesForEvaluate( aMesh, aShape, aResMap, aNbNodes, IsQuadratic ) ) {
649 std::vector<int> aResVec(SMDSEntity_Last);
650 for(int i=SMDSEntity_Node; i<SMDSEntity_Last; i++) aResVec[i] = 0;
651 SMESH_subMesh * sm = aMesh.GetSubMesh(aShape);
652 aResMap.insert(std::make_pair(sm,aResVec));
653 SMESH_ComputeErrorPtr& smError = sm->GetComputeError();
654 smError.reset( new SMESH_ComputeError(COMPERR_ALGO_FAILED,"Submesh can not be evaluated",this));
658 if(myQuadranglePreference) {
659 int n1 = aNbNodes[0];
660 int n2 = aNbNodes[1];
661 int n3 = aNbNodes[2];
662 int n4 = aNbNodes[3];
663 int nfull = n1+n2+n3+n4;
666 if( nfull==ntmp && ( (n1!=n3) || (n2!=n4) ) ) {
667 // special path for using only quandrangle faces
668 return EvaluateQuadPref(aMesh, aShape, aNbNodes, aResMap, IsQuadratic);
673 int nbdown = aNbNodes[0];
674 int nbup = aNbNodes[2];
676 int nbright = aNbNodes[1];
677 int nbleft = aNbNodes[3];
679 int nbhoriz = Min(nbdown, nbup);
680 int nbvertic = Min(nbright, nbleft);
682 int dh = Max(nbdown, nbup) - nbhoriz;
683 int dv = Max(nbright, nbleft) - nbvertic;
690 int nbNodes = (nbhoriz-2)*(nbvertic-2);
691 //int nbFaces3 = dh + dv + kdh*(nbvertic-1)*2 + kdv*(nbhoriz-1)*2;
692 int nbFaces3 = dh + dv;
693 //if( kdh==1 && kdv==1 ) nbFaces3 -= 2;
694 //if( dh>0 && dv>0 ) nbFaces3 -= 2;
695 //int nbFaces4 = (nbhoriz-1-kdh)*(nbvertic-1-kdv);
696 int nbFaces4 = (nbhoriz-1)*(nbvertic-1);
698 std::vector<int> aVec(SMDSEntity_Last);
699 for(int i=SMDSEntity_Node; i<SMDSEntity_Last; i++) aVec[i] = 0;
701 aVec[SMDSEntity_Quad_Triangle] = nbFaces3;
702 aVec[SMDSEntity_Quad_Quadrangle] = nbFaces4;
703 int nbbndedges = nbdown + nbup + nbright + nbleft -4;
704 int nbintedges = ( nbFaces4*4 + nbFaces3*3 - nbbndedges ) / 2;
705 aVec[SMDSEntity_Node] = nbNodes + nbintedges;
706 if( aNbNodes.size()==5 ) {
707 aVec[SMDSEntity_Quad_Triangle] = nbFaces3 + aNbNodes[3] -1;
708 aVec[SMDSEntity_Quad_Quadrangle] = nbFaces4 - aNbNodes[3] +1;
712 aVec[SMDSEntity_Node] = nbNodes;
713 aVec[SMDSEntity_Triangle] = nbFaces3;
714 aVec[SMDSEntity_Quadrangle] = nbFaces4;
715 if( aNbNodes.size()==5 ) {
716 aVec[SMDSEntity_Triangle] = nbFaces3 + aNbNodes[3] - 1;
717 aVec[SMDSEntity_Quadrangle] = nbFaces4 - aNbNodes[3] + 1;
720 SMESH_subMesh * sm = aMesh.GetSubMesh(aShape);
721 aResMap.insert(std::make_pair(sm,aVec));
727 //================================================================================
729 * \brief Return true if only two given edges meat at their common vertex
731 //================================================================================
733 static bool twoEdgesMeatAtVertex(const TopoDS_Edge& e1,
734 const TopoDS_Edge& e2,
738 if ( !TopExp::CommonVertex( e1, e2, v ))
740 TopTools_ListIteratorOfListOfShape ancestIt( mesh.GetAncestors( v ));
741 for ( ; ancestIt.More() ; ancestIt.Next() )
742 if ( ancestIt.Value().ShapeType() == TopAbs_EDGE )
743 if ( !e1.IsSame( ancestIt.Value() ) && !e2.IsSame( ancestIt.Value() ))
748 //=============================================================================
752 //=============================================================================
754 FaceQuadStruct* StdMeshers_Quadrangle_2D::CheckNbEdges(SMESH_Mesh & aMesh,
755 const TopoDS_Shape & aShape)
756 //throw(SALOME_Exception)
758 const TopoDS_Face & F = TopoDS::Face(aShape);
759 const bool ignoreMediumNodes = _quadraticMesh;
761 // verify 1 wire only, with 4 edges
763 list< TopoDS_Edge > edges;
764 list< int > nbEdgesInWire;
765 int nbWire = SMESH_Block::GetOrderedEdges (F, V, edges, nbEdgesInWire);
767 error(COMPERR_BAD_SHAPE, TComm("Wrong number of wires: ") << nbWire);
770 FaceQuadStruct* quad = new FaceQuadStruct;
772 quad->side.reserve(nbEdgesInWire.front());
775 list< TopoDS_Edge >::iterator edgeIt = edges.begin();
776 if ( nbEdgesInWire.front() == 3 ) { // exactly 3 edges
777 if(myTriaVertexID>0) {
778 SMESHDS_Mesh* meshDS = aMesh.GetMeshDS();
779 TopoDS_Vertex V = TopoDS::Vertex(meshDS->IndexToShape(myTriaVertexID));
781 TopoDS_Edge E1,E2,E3;
782 for(; edgeIt != edges.end(); ++edgeIt) {
783 TopoDS_Edge E = TopoDS::Edge(*edgeIt);
784 TopoDS_Vertex VF, VL;
785 TopExp::Vertices(E, VF, VL, true);
788 else if( VL.IsSame(V) )
793 quad->side.reserve(4);
794 quad->side.push_back( new StdMeshers_FaceSide(F, E1, &aMesh, true, ignoreMediumNodes));
795 quad->side.push_back( new StdMeshers_FaceSide(F, E2, &aMesh, true, ignoreMediumNodes));
796 quad->side.push_back( new StdMeshers_FaceSide(F, E3, &aMesh, false, ignoreMediumNodes));
797 std::vector<UVPtStruct> UVPSleft = quad->side[0]->GetUVPtStruct(true,0);
798 std::vector<UVPtStruct> UVPStop = quad->side[1]->GetUVPtStruct(false,1);
799 std::vector<UVPtStruct> UVPSright = quad->side[2]->GetUVPtStruct(true,1);
800 const SMDS_MeshNode* aNode = UVPSleft[0].node;
801 gp_Pnt2d aPnt2d( UVPSleft[0].u, UVPSleft[0].v );
802 StdMeshers_FaceSide* VertFS =
803 new StdMeshers_FaceSide(aNode, aPnt2d, quad->side[1]);
804 quad->side.push_back(VertFS);
810 else if ( nbEdgesInWire.front() == 4 ) { // exactly 4 edges
811 for ( ; edgeIt != edges.end(); ++edgeIt, nbSides++ )
812 quad->side.push_back( new StdMeshers_FaceSide(F, *edgeIt, &aMesh,
813 nbSides<TOP_SIDE, ignoreMediumNodes));
815 else if ( nbEdgesInWire.front() > 4 ) { // more than 4 edges - try to unite some
816 list< TopoDS_Edge > sideEdges;
817 while ( !edges.empty()) {
819 sideEdges.splice( sideEdges.end(), edges, edges.begin()); // edges.front() -> sideEdges.end()
820 bool sameSide = true;
821 while ( !edges.empty() && sameSide ) {
822 sameSide = SMESH_Algo::IsContinuous( sideEdges.back(), edges.front() );
824 sideEdges.splice( sideEdges.end(), edges, edges.begin());
826 if ( nbSides == 0 ) { // go backward from the first edge
828 while ( !edges.empty() && sameSide ) {
829 sameSide = SMESH_Algo::IsContinuous( sideEdges.front(), edges.back() );
831 sideEdges.splice( sideEdges.begin(), edges, --edges.end());
834 quad->side.push_back( new StdMeshers_FaceSide(F, sideEdges, &aMesh,
835 nbSides<TOP_SIDE, ignoreMediumNodes));
838 // issue 20222. Try to unite only edges shared by two same faces
840 // delete found sides
841 { FaceQuadStruct cleaner( *quad ); }
843 quad->side.reserve(nbEdgesInWire.front());
846 SMESH_Block::GetOrderedEdges (F, V, edges, nbEdgesInWire);
847 while ( !edges.empty()) {
849 sideEdges.splice( sideEdges.end(), edges, edges.begin());
850 bool sameSide = true;
851 while ( !edges.empty() && sameSide ) {
853 SMESH_Algo::IsContinuous( sideEdges.back(), edges.front() ) &&
854 twoEdgesMeatAtVertex( sideEdges.back(), edges.front(), aMesh );
856 sideEdges.splice( sideEdges.end(), edges, edges.begin());
858 if ( nbSides == 0 ) { // go backward from the first edge
860 while ( !edges.empty() && sameSide ) {
862 SMESH_Algo::IsContinuous( sideEdges.front(), edges.back() ) &&
863 twoEdgesMeatAtVertex( sideEdges.front(), edges.back(), aMesh );
865 sideEdges.splice( sideEdges.begin(), edges, --edges.end());
868 quad->side.push_back( new StdMeshers_FaceSide(F, sideEdges, &aMesh,
869 nbSides<TOP_SIDE, ignoreMediumNodes));
876 MESSAGE ( "StdMeshers_Quadrangle_2D. Edge IDs of " << nbSides << " sides:\n" );
877 for ( int i = 0; i < nbSides; ++i ) {
879 for ( int e = 0; e < quad->side[i]->NbEdges(); ++e )
880 MESSAGE ( myTool->GetMeshDS()->ShapeToIndex( quad->side[i]->Edge( e )) << " " );
886 nbSides = nbEdgesInWire.front();
887 error(COMPERR_BAD_SHAPE, TComm("Face must have 4 sides but not ") << nbSides);
896 //=============================================================================
900 //=============================================================================
902 bool StdMeshers_Quadrangle_2D::CheckNbEdgesForEvaluate(SMESH_Mesh& aMesh,
903 const TopoDS_Shape & aShape,
904 MapShapeNbElems& aResMap,
905 std::vector<int>& aNbNodes,
909 const TopoDS_Face & F = TopoDS::Face(aShape);
911 // verify 1 wire only, with 4 edges
913 list< TopoDS_Edge > edges;
914 list< int > nbEdgesInWire;
915 int nbWire = SMESH_Block::GetOrderedEdges (F, V, edges, nbEdgesInWire);
923 list< TopoDS_Edge >::iterator edgeIt = edges.begin();
924 SMESH_subMesh * sm = aMesh.GetSubMesh( *edgeIt );
925 MapShapeNbElemsItr anIt = aResMap.find(sm);
926 if(anIt==aResMap.end()) {
929 std::vector<int> aVec = (*anIt).second;
930 IsQuadratic = (aVec[SMDSEntity_Quad_Edge] > aVec[SMDSEntity_Edge]);
931 if ( nbEdgesInWire.front() == 3 ) { // exactly 3 edges
932 if(myTriaVertexID>0) {
933 SMESHDS_Mesh* meshDS = aMesh.GetMeshDS();
934 TopoDS_Vertex V = TopoDS::Vertex(meshDS->IndexToShape(myTriaVertexID));
936 TopoDS_Edge E1,E2,E3;
937 for(; edgeIt != edges.end(); ++edgeIt) {
938 TopoDS_Edge E = TopoDS::Edge(*edgeIt);
939 TopoDS_Vertex VF, VL;
940 TopExp::Vertices(E, VF, VL, true);
943 else if( VL.IsSame(V) )
948 SMESH_subMesh * sm = aMesh.GetSubMesh(E1);
949 MapShapeNbElemsItr anIt = aResMap.find(sm);
950 if(anIt==aResMap.end()) return false;
951 std::vector<int> aVec = (*anIt).second;
953 aNbNodes[0] = (aVec[SMDSEntity_Node]-1)/2 + 2;
955 aNbNodes[0] = aVec[SMDSEntity_Node] + 2;
956 sm = aMesh.GetSubMesh(E2);
957 anIt = aResMap.find(sm);
958 if(anIt==aResMap.end()) return false;
959 aVec = (*anIt).second;
961 aNbNodes[1] = (aVec[SMDSEntity_Node]-1)/2 + 2;
963 aNbNodes[1] = aVec[SMDSEntity_Node] + 2;
964 sm = aMesh.GetSubMesh(E3);
965 anIt = aResMap.find(sm);
966 if(anIt==aResMap.end()) return false;
967 aVec = (*anIt).second;
969 aNbNodes[2] = (aVec[SMDSEntity_Node]-1)/2 + 2;
971 aNbNodes[2] = aVec[SMDSEntity_Node] + 2;
972 aNbNodes[3] = aNbNodes[1];
978 if ( nbEdgesInWire.front() == 4 ) { // exactly 4 edges
979 for(; edgeIt != edges.end(); edgeIt++) {
980 SMESH_subMesh * sm = aMesh.GetSubMesh( *edgeIt );
981 MapShapeNbElemsItr anIt = aResMap.find(sm);
982 if(anIt==aResMap.end()) {
985 std::vector<int> aVec = (*anIt).second;
987 aNbNodes[nbSides] = (aVec[SMDSEntity_Node]-1)/2 + 2;
989 aNbNodes[nbSides] = aVec[SMDSEntity_Node] + 2;
993 else if ( nbEdgesInWire.front() > 4 ) { // more than 4 edges - try to unite some
994 list< TopoDS_Edge > sideEdges;
995 while ( !edges.empty()) {
997 sideEdges.splice( sideEdges.end(), edges, edges.begin()); // edges.front() -> sideEdges.end()
998 bool sameSide = true;
999 while ( !edges.empty() && sameSide ) {
1000 sameSide = SMESH_Algo::IsContinuous( sideEdges.back(), edges.front() );
1002 sideEdges.splice( sideEdges.end(), edges, edges.begin());
1004 if ( nbSides == 0 ) { // go backward from the first edge
1006 while ( !edges.empty() && sameSide ) {
1007 sameSide = SMESH_Algo::IsContinuous( sideEdges.front(), edges.back() );
1009 sideEdges.splice( sideEdges.begin(), edges, --edges.end());
1012 list<TopoDS_Edge>::iterator ite = sideEdges.begin();
1013 aNbNodes[nbSides] = 1;
1014 for(; ite!=sideEdges.end(); ite++) {
1015 SMESH_subMesh * sm = aMesh.GetSubMesh( *ite );
1016 MapShapeNbElemsItr anIt = aResMap.find(sm);
1017 if(anIt==aResMap.end()) {
1020 std::vector<int> aVec = (*anIt).second;
1022 aNbNodes[nbSides] += (aVec[SMDSEntity_Node]-1)/2 + 1;
1024 aNbNodes[nbSides] += aVec[SMDSEntity_Node] + 1;
1028 // issue 20222. Try to unite only edges shared by two same faces
1031 SMESH_Block::GetOrderedEdges (F, V, edges, nbEdgesInWire);
1032 while ( !edges.empty()) {
1034 sideEdges.splice( sideEdges.end(), edges, edges.begin());
1035 bool sameSide = true;
1036 while ( !edges.empty() && sameSide ) {
1038 SMESH_Algo::IsContinuous( sideEdges.back(), edges.front() ) &&
1039 twoEdgesMeatAtVertex( sideEdges.back(), edges.front(), aMesh );
1041 sideEdges.splice( sideEdges.end(), edges, edges.begin());
1043 if ( nbSides == 0 ) { // go backward from the first edge
1045 while ( !edges.empty() && sameSide ) {
1047 SMESH_Algo::IsContinuous( sideEdges.front(), edges.back() ) &&
1048 twoEdgesMeatAtVertex( sideEdges.front(), edges.back(), aMesh );
1050 sideEdges.splice( sideEdges.begin(), edges, --edges.end());
1053 list<TopoDS_Edge>::iterator ite = sideEdges.begin();
1054 aNbNodes[nbSides] = 1;
1055 for(; ite!=sideEdges.end(); ite++) {
1056 SMESH_subMesh * sm = aMesh.GetSubMesh( *ite );
1057 MapShapeNbElemsItr anIt = aResMap.find(sm);
1058 if(anIt==aResMap.end()) {
1061 std::vector<int> aVec = (*anIt).second;
1063 aNbNodes[nbSides] += (aVec[SMDSEntity_Node]-1)/2 + 1;
1065 aNbNodes[nbSides] += aVec[SMDSEntity_Node] + 1;
1073 nbSides = nbEdgesInWire.front();
1074 error(COMPERR_BAD_SHAPE, TComm("Face must have 4 sides but not ") << nbSides);
1082 //=============================================================================
1086 //=============================================================================
1088 FaceQuadStruct *StdMeshers_Quadrangle_2D::CheckAnd2Dcompute
1089 (SMESH_Mesh & aMesh,
1090 const TopoDS_Shape & aShape,
1091 const bool CreateQuadratic) //throw(SALOME_Exception)
1093 _quadraticMesh = CreateQuadratic;
1095 FaceQuadStruct *quad = CheckNbEdges(aMesh, aShape);
1099 // set normalized grid on unit square in parametric domain
1100 bool stat = SetNormalizedGrid(aMesh, aShape, quad);
1110 //=============================================================================
1114 //=============================================================================
1116 faceQuadStruct::~faceQuadStruct()
1118 for (int i = 0; i < side.size(); i++) {
1119 if (side[i]) delete side[i];
1121 if (uv_grid) delete [] uv_grid;
1125 inline const vector<UVPtStruct>& GetUVPtStructIn(FaceQuadStruct* quad, int i, int nbSeg)
1127 bool isXConst = ( i == BOTTOM_SIDE || i == TOP_SIDE );
1128 double constValue = ( i == BOTTOM_SIDE || i == LEFT_SIDE ) ? 0 : 1;
1130 quad->isEdgeOut[i] ?
1131 quad->side[i]->SimulateUVPtStruct(nbSeg,isXConst,constValue) :
1132 quad->side[i]->GetUVPtStruct(isXConst,constValue);
1136 //=============================================================================
1140 //=============================================================================
1142 bool StdMeshers_Quadrangle_2D::SetNormalizedGrid (SMESH_Mesh & aMesh,
1143 const TopoDS_Shape& aShape,
1144 FaceQuadStruct* & quad) //throw (SALOME_Exception)
1146 // Algorithme décrit dans "Génération automatique de maillages"
1147 // P.L. GEORGE, MASSON, § 6.4.1 p. 84-85
1148 // traitement dans le domaine paramétrique 2d u,v
1149 // transport - projection sur le carré unité
1151 // MESSAGE("StdMeshers_Quadrangle_2D::SetNormalizedGrid");
1152 // const TopoDS_Face& F = TopoDS::Face(aShape);
1154 // 1 --- find orientation of the 4 edges, by test on extrema
1157 // |<----north-2-------^ a3 -------------> a2
1159 // west-3 east-1 =right | |
1163 // v----south-0--------> a0 -------------> a1
1168 // 3 --- 2D normalized values on unit square [0..1][0..1]
1170 int nbhoriz = Min(quad->side[0]->NbPoints(), quad->side[2]->NbPoints());
1171 int nbvertic = Min(quad->side[1]->NbPoints(), quad->side[3]->NbPoints());
1173 quad->isEdgeOut[0] = (quad->side[0]->NbPoints() > quad->side[2]->NbPoints());
1174 quad->isEdgeOut[1] = (quad->side[1]->NbPoints() > quad->side[3]->NbPoints());
1175 quad->isEdgeOut[2] = (quad->side[2]->NbPoints() > quad->side[0]->NbPoints());
1176 quad->isEdgeOut[3] = (quad->side[3]->NbPoints() > quad->side[1]->NbPoints());
1178 UVPtStruct *uv_grid = quad->uv_grid = new UVPtStruct[nbvertic * nbhoriz];
1180 const vector<UVPtStruct>& uv_e0 = GetUVPtStructIn( quad, 0, nbhoriz - 1 );
1181 const vector<UVPtStruct>& uv_e1 = GetUVPtStructIn( quad, 1, nbvertic - 1 );
1182 const vector<UVPtStruct>& uv_e2 = GetUVPtStructIn( quad, 2, nbhoriz - 1 );
1183 const vector<UVPtStruct>& uv_e3 = GetUVPtStructIn( quad, 3, nbvertic - 1 );
1185 if ( uv_e0.empty() || uv_e1.empty() || uv_e2.empty() || uv_e3.empty() )
1186 //return error( "Can't find nodes on sides");
1187 return error( COMPERR_BAD_INPUT_MESH );
1189 // nodes Id on "in" edges
1190 if (! quad->isEdgeOut[0]) {
1192 for (int i = 0; i < nbhoriz; i++) { // down
1193 int ij = j * nbhoriz + i;
1194 uv_grid[ij].node = uv_e0[i].node;
1197 if (! quad->isEdgeOut[1]) {
1198 int i = nbhoriz - 1;
1199 for (int j = 0; j < nbvertic; j++) { // right
1200 int ij = j * nbhoriz + i;
1201 uv_grid[ij].node = uv_e1[j].node;
1204 if (! quad->isEdgeOut[2]) {
1205 int j = nbvertic - 1;
1206 for (int i = 0; i < nbhoriz; i++) { // up
1207 int ij = j * nbhoriz + i;
1208 uv_grid[ij].node = uv_e2[i].node;
1211 if (! quad->isEdgeOut[3]) {
1213 for (int j = 0; j < nbvertic; j++) { // left
1214 int ij = j * nbhoriz + i;
1215 uv_grid[ij].node = uv_e3[j].node;
1219 // normalized 2d values on grid
1220 for (int i = 0; i < nbhoriz; i++) {
1221 for (int j = 0; j < nbvertic; j++) {
1222 int ij = j * nbhoriz + i;
1223 // --- droite i cste : x = x0 + y(x1-x0)
1224 double x0 = uv_e0[i].normParam; // bas - sud
1225 double x1 = uv_e2[i].normParam; // haut - nord
1226 // --- droite j cste : y = y0 + x(y1-y0)
1227 double y0 = uv_e3[j].normParam; // gauche-ouest
1228 double y1 = uv_e1[j].normParam; // droite - est
1229 // --- intersection : x=x0+(y0+x(y1-y0))(x1-x0)
1230 double x = (x0 + y0 * (x1 - x0)) / (1 - (y1 - y0) * (x1 - x0));
1231 double y = y0 + x * (y1 - y0);
1234 //MESSAGE("-xy-01 "<<x0<<" "<<x1<<" "<<y0<<" "<<y1);
1235 //MESSAGE("-xy-norm "<<i<<" "<<j<<" "<<x<<" "<<y);
1239 // 4 --- projection on 2d domain (u,v)
1240 gp_UV a0( uv_e0.front().u, uv_e0.front().v );
1241 gp_UV a1( uv_e0.back().u, uv_e0.back().v );
1242 gp_UV a2( uv_e2.back().u, uv_e2.back().v );
1243 gp_UV a3( uv_e2.front().u, uv_e2.front().v );
1245 for (int i = 0; i < nbhoriz; i++) {
1246 for (int j = 0; j < nbvertic; j++) {
1247 int ij = j * nbhoriz + i;
1248 double x = uv_grid[ij].x;
1249 double y = uv_grid[ij].y;
1250 double param_0 = uv_e0[0].normParam + x * (uv_e0.back().normParam - uv_e0[0].normParam); // sud
1251 double param_2 = uv_e2[0].normParam + x * (uv_e2.back().normParam - uv_e2[0].normParam); // nord
1252 double param_1 = uv_e1[0].normParam + y * (uv_e1.back().normParam - uv_e1[0].normParam); // est
1253 double param_3 = uv_e3[0].normParam + y * (uv_e3.back().normParam - uv_e3[0].normParam); // ouest
1255 //MESSAGE("params "<<param_0<<" "<<param_1<<" "<<param_2<<" "<<param_3);
1256 gp_UV p0 = quad->side[0]->Value2d(param_0).XY();
1257 gp_UV p1 = quad->side[1]->Value2d(param_1).XY();
1258 gp_UV p2 = quad->side[2]->Value2d(param_2).XY();
1259 gp_UV p3 = quad->side[3]->Value2d(param_3).XY();
1261 gp_UV uv = (1 - y) * p0 + x * p1 + y * p2 + (1 - x) * p3;
1262 uv -= (1 - x) * (1 - y) * a0 + x * (1 - y) * a1 + x * y * a2 + (1 - x) * y * a3;
1264 uv_grid[ij].u = uv.X();
1265 uv_grid[ij].v = uv.Y();
1271 //=======================================================================
1272 //function : ShiftQuad
1273 //purpose : auxilary function for ComputeQuadPref
1274 //=======================================================================
1276 static void ShiftQuad(FaceQuadStruct* quad, const int num, bool)
1278 StdMeshers_FaceSide* side[4] = { quad->side[0], quad->side[1], quad->side[2], quad->side[3] };
1279 for (int i = BOTTOM_SIDE; i < NB_SIDES; ++i ) {
1280 int id = ( i + num ) % NB_SIDES;
1281 bool wasForward = ( i < TOP_SIDE );
1282 bool newForward = ( id < TOP_SIDE );
1283 if ( wasForward != newForward )
1284 side[ i ]->Reverse();
1285 quad->side[ id ] = side[ i ];
1289 //=======================================================================
1291 //purpose : auxilary function for ComputeQuadPref
1292 //=======================================================================
1294 static gp_UV CalcUV(double x0, double x1, double y0, double y1,
1295 FaceQuadStruct* quad,
1296 const gp_UV& a0, const gp_UV& a1,
1297 const gp_UV& a2, const gp_UV& a3)
1299 const vector<UVPtStruct>& uv_eb = quad->side[0]->GetUVPtStruct(true,0 );
1300 const vector<UVPtStruct>& uv_er = quad->side[1]->GetUVPtStruct(false,1);
1301 const vector<UVPtStruct>& uv_et = quad->side[2]->GetUVPtStruct(true,1 );
1302 const vector<UVPtStruct>& uv_el = quad->side[3]->GetUVPtStruct(false,0);
1304 double x = (x0 + y0 * (x1 - x0)) / (1 - (y1 - y0) * (x1 - x0));
1305 double y = y0 + x * (y1 - y0);
1307 double param_b = uv_eb[0].normParam + x * (uv_eb.back().normParam - uv_eb[0].normParam);
1308 double param_t = uv_et[0].normParam + x * (uv_et.back().normParam - uv_et[0].normParam);
1309 double param_r = uv_er[0].normParam + y * (uv_er.back().normParam - uv_er[0].normParam);
1310 double param_l = uv_el[0].normParam + y * (uv_el.back().normParam - uv_el[0].normParam);
1312 gp_UV p0 = quad->side[BOTTOM_SIDE]->Value2d(param_b).XY();
1313 gp_UV p1 = quad->side[RIGHT_SIDE ]->Value2d(param_r).XY();
1314 gp_UV p2 = quad->side[TOP_SIDE ]->Value2d(param_t).XY();
1315 gp_UV p3 = quad->side[LEFT_SIDE ]->Value2d(param_l).XY();
1317 gp_UV uv = p0 * (1 - y) + p1 * x + p2 * y + p3 * (1 - x);
1319 uv -= (1 - x) * (1 - y) * a0 + x * (1 - y) * a1 + x * y * a2 + (1 - x) * y * a3;
1324 //=======================================================================
1325 //function : CalcUV2
1326 //purpose : auxilary function for ComputeQuadPref
1327 //=======================================================================
1329 static gp_UV CalcUV2(double x, double y,
1330 FaceQuadStruct* quad,
1331 const gp_UV& a0, const gp_UV& a1,
1332 const gp_UV& a2, const gp_UV& a3)
1334 const vector<UVPtStruct>& uv_eb = quad->side[0]->GetUVPtStruct(true,0 );
1335 const vector<UVPtStruct>& uv_er = quad->side[1]->GetUVPtStruct(false,1);
1336 const vector<UVPtStruct>& uv_et = quad->side[2]->GetUVPtStruct(true,1 );
1337 const vector<UVPtStruct>& uv_el = quad->side[3]->GetUVPtStruct(false,0);
1339 //double x = (x0 + y0 * (x1 - x0)) / (1 - (y1 - y0) * (x1 - x0));
1340 //double y = y0 + x * (y1 - y0);
1342 double param_b = uv_eb[0].normParam + x * (uv_eb.back().normParam - uv_eb[0].normParam);
1343 double param_t = uv_et[0].normParam + x * (uv_et.back().normParam - uv_et[0].normParam);
1344 double param_r = uv_er[0].normParam + y * (uv_er.back().normParam - uv_er[0].normParam);
1345 double param_l = uv_el[0].normParam + y * (uv_el.back().normParam - uv_el[0].normParam);
1347 gp_UV p0 = quad->side[BOTTOM_SIDE]->Value2d(param_b).XY();
1348 gp_UV p1 = quad->side[RIGHT_SIDE ]->Value2d(param_r).XY();
1349 gp_UV p2 = quad->side[TOP_SIDE ]->Value2d(param_t).XY();
1350 gp_UV p3 = quad->side[LEFT_SIDE ]->Value2d(param_l).XY();
1352 gp_UV uv = p0 * (1 - y) + p1 * x + p2 * y + p3 * (1 - x);
1354 uv -= (1 - x) * (1 - y) * a0 + x * (1 - y) * a1 + x * y * a2 + (1 - x) * y * a3;
1360 //=======================================================================
1362 * Create only quandrangle faces
1364 //=======================================================================
1366 bool StdMeshers_Quadrangle_2D::ComputeQuadPref (SMESH_Mesh & aMesh,
1367 const TopoDS_Shape& aShape,
1368 FaceQuadStruct* quad)
1370 // Auxilary key in order to keep old variant
1371 // of meshing after implementation new variant
1372 // for bug 0016220 from Mantis.
1373 bool OldVersion = false;
1375 SMESHDS_Mesh * meshDS = aMesh.GetMeshDS();
1376 const TopoDS_Face& F = TopoDS::Face(aShape);
1377 Handle(Geom_Surface) S = BRep_Tool::Surface(F);
1378 // const TopoDS_Wire& W = BRepTools::OuterWire(F);
1380 // if(W.Orientation()==TopAbs_FORWARD)
1382 //if(WisF) cout<<"W is FORWARD"<<endl;
1383 //else cout<<"W is REVERSED"<<endl;
1384 // bool FisF = (F.Orientation()==TopAbs_FORWARD);
1385 // if(!FisF) WisF = !WisF;
1387 int i,j,geomFaceID = meshDS->ShapeToIndex( F );
1389 int nb = quad->side[0]->NbPoints();
1390 int nr = quad->side[1]->NbPoints();
1391 int nt = quad->side[2]->NbPoints();
1392 int nl = quad->side[3]->NbPoints();
1393 int dh = abs(nb-nt);
1394 int dv = abs(nr-nl);
1398 // it is a base case => not shift quad but me be replacement is need
1399 ShiftQuad(quad,0,WisF);
1402 // we have to shift quad on 2
1403 ShiftQuad(quad,2,WisF);
1408 // we have to shift quad on 1
1409 ShiftQuad(quad,1,WisF);
1412 // we have to shift quad on 3
1413 ShiftQuad(quad,3,WisF);
1417 nb = quad->side[0]->NbPoints();
1418 nr = quad->side[1]->NbPoints();
1419 nt = quad->side[2]->NbPoints();
1420 nl = quad->side[3]->NbPoints();
1423 int nbh = Max(nb,nt);
1424 int nbv = Max(nr,nl);
1428 // ----------- Old version ---------------
1429 // orientation of face and 3 main domain for future faces
1435 // left | | | | rigth
1442 // ----------- New version ---------------
1443 // orientation of face and 3 main domain for future faces
1449 // left |/________\| rigth
1465 const vector<UVPtStruct>& uv_eb = quad->side[0]->GetUVPtStruct(true,0 );
1466 const vector<UVPtStruct>& uv_er = quad->side[1]->GetUVPtStruct(false,1);
1467 const vector<UVPtStruct>& uv_et = quad->side[2]->GetUVPtStruct(true,1 );
1468 const vector<UVPtStruct>& uv_el = quad->side[3]->GetUVPtStruct(false,0);
1470 // arrays for normalized params
1471 //cout<<"Dump B:"<<endl;
1472 TColStd_SequenceOfReal npb, npr, npt, npl;
1473 for(i=0; i<nb; i++) {
1474 npb.Append(uv_eb[i].normParam);
1475 //cout<<"i="<<i<<" par="<<uv_eb[i].normParam<<" npar="<<uv_eb[i].normParam;
1476 //const SMDS_MeshNode* N = uv_eb[i].node;
1477 //cout<<" node("<<N->X()<<","<<N->Y()<<","<<N->Z()<<")"<<endl;
1479 for(i=0; i<nr; i++) {
1480 npr.Append(uv_er[i].normParam);
1482 for(i=0; i<nt; i++) {
1483 npt.Append(uv_et[i].normParam);
1485 for(i=0; i<nl; i++) {
1486 npl.Append(uv_el[i].normParam);
1491 // add some params to right and left after the first param
1494 double dpr = (npr.Value(2) - npr.Value(1))/(dr+1);
1495 for(i=1; i<=dr; i++) {
1496 npr.InsertAfter(1,npr.Value(2)-dpr);
1500 dpr = (npl.Value(2) - npl.Value(1))/(dl+1);
1501 for(i=1; i<=dl; i++) {
1502 npl.InsertAfter(1,npl.Value(2)-dpr);
1506 //for(i=1; i<=npb.Length(); i++) {
1507 // cout<<" "<<npb.Value(i);
1511 gp_XY a0( uv_eb.front().u, uv_eb.front().v );
1512 gp_XY a1( uv_eb.back().u, uv_eb.back().v );
1513 gp_XY a2( uv_et.back().u, uv_et.back().v );
1514 gp_XY a3( uv_et.front().u, uv_et.front().v );
1515 //cout<<" a0("<<a0.X()<<","<<a0.Y()<<")"<<" a1("<<a1.X()<<","<<a1.Y()<<")"
1516 // <<" a2("<<a2.X()<<","<<a2.Y()<<")"<<" a3("<<a3.X()<<","<<a3.Y()<<")"<<endl;
1518 int nnn = Min(nr,nl);
1519 // auxilary sequence of XY for creation nodes
1520 // in the bottom part of central domain
1521 // it's length must be == nbv-nnn-1
1522 TColgp_SequenceOfXY UVL;
1523 TColgp_SequenceOfXY UVR;
1526 // step1: create faces for left domain
1527 StdMeshers_Array2OfNode NodesL(1,dl+1,1,nl);
1529 for(j=1; j<=nl; j++)
1530 NodesL.SetValue(1,j,uv_el[j-1].node);
1533 for(i=1; i<=dl; i++)
1534 NodesL.SetValue(i+1,nl,uv_et[i].node);
1535 // create and add needed nodes
1536 TColgp_SequenceOfXY UVtmp;
1537 for(i=1; i<=dl; i++) {
1538 double x0 = npt.Value(i+1);
1541 double y0 = npl.Value(i+1);
1542 double y1 = npr.Value(i+1);
1543 gp_UV UV = CalcUV(x0, x1, y0, y1, quad, a0, a1, a2, a3);
1544 gp_Pnt P = S->Value(UV.X(),UV.Y());
1545 SMDS_MeshNode * N = meshDS->AddNode(P.X(), P.Y(), P.Z());
1546 meshDS->SetNodeOnFace(N, geomFaceID, UV.X(), UV.Y());
1547 NodesL.SetValue(i+1,1,N);
1548 if(UVL.Length()<nbv-nnn-1) UVL.Append(UV);
1550 for(j=2; j<nl; j++) {
1551 double y0 = npl.Value(dl+j);
1552 double y1 = npr.Value(dl+j);
1553 gp_UV UV = CalcUV(x0, x1, y0, y1, quad, a0, a1, a2, a3);
1554 gp_Pnt P = S->Value(UV.X(),UV.Y());
1555 SMDS_MeshNode* N = meshDS->AddNode(P.X(), P.Y(), P.Z());
1556 meshDS->SetNodeOnFace(N, geomFaceID, UV.X(), UV.Y());
1557 NodesL.SetValue(i+1,j,N);
1558 if( i==dl ) UVtmp.Append(UV);
1561 for(i=1; i<=UVtmp.Length() && UVL.Length()<nbv-nnn-1; i++) {
1562 UVL.Append(UVtmp.Value(i));
1564 //cout<<"Dump NodesL:"<<endl;
1565 //for(i=1; i<=dl+1; i++) {
1567 // for(j=1; j<=nl; j++) {
1568 // cout<<" ("<<NodesL.Value(i,j)->X()<<","<<NodesL.Value(i,j)->Y()<<","<<NodesL.Value(i,j)->Z()<<")";
1573 for(i=1; i<=dl; i++) {
1574 for(j=1; j<nl; j++) {
1577 myTool->AddFace(NodesL.Value(i,j), NodesL.Value(i+1,j),
1578 NodesL.Value(i+1,j+1), NodesL.Value(i,j+1));
1579 if(F) meshDS->SetMeshElementOnShape(F, geomFaceID);
1583 myTool->AddFace(NodesL.Value(i,j), NodesL.Value(i,j+1),
1584 NodesL.Value(i+1,j+1), NodesL.Value(i+1,j));
1585 if(F) meshDS->SetMeshElementOnShape(F, geomFaceID);
1591 // fill UVL using c2d
1592 for(i=1; i<npl.Length() && UVL.Length()<nbv-nnn-1; i++) {
1593 UVL.Append( gp_UV ( uv_el[i].u, uv_el[i].v ));
1597 // step2: create faces for right domain
1598 StdMeshers_Array2OfNode NodesR(1,dr+1,1,nr);
1600 for(j=1; j<=nr; j++)
1601 NodesR.SetValue(1,j,uv_er[nr-j].node);
1604 for(i=1; i<=dr; i++)
1605 NodesR.SetValue(i+1,1,uv_et[nt-1-i].node);
1606 // create and add needed nodes
1607 TColgp_SequenceOfXY UVtmp;
1608 for(i=1; i<=dr; i++) {
1609 double x0 = npt.Value(nt-i);
1612 double y0 = npl.Value(i+1);
1613 double y1 = npr.Value(i+1);
1614 gp_UV UV = CalcUV(x0, x1, y0, y1, quad, a0, a1, a2, a3);
1615 gp_Pnt P = S->Value(UV.X(),UV.Y());
1616 SMDS_MeshNode * N = meshDS->AddNode(P.X(), P.Y(), P.Z());
1617 meshDS->SetNodeOnFace(N, geomFaceID, UV.X(), UV.Y());
1618 NodesR.SetValue(i+1,nr,N);
1619 if(UVR.Length()<nbv-nnn-1) UVR.Append(UV);
1621 for(j=2; j<nr; j++) {
1622 double y0 = npl.Value(nbv-j+1);
1623 double y1 = npr.Value(nbv-j+1);
1624 gp_UV UV = CalcUV(x0, x1, y0, y1, quad, a0, a1, a2, a3);
1625 gp_Pnt P = S->Value(UV.X(),UV.Y());
1626 SMDS_MeshNode* N = meshDS->AddNode(P.X(), P.Y(), P.Z());
1627 meshDS->SetNodeOnFace(N, geomFaceID, UV.X(), UV.Y());
1628 NodesR.SetValue(i+1,j,N);
1629 if( i==dr ) UVtmp.Prepend(UV);
1632 for(i=1; i<=UVtmp.Length() && UVR.Length()<nbv-nnn-1; i++) {
1633 UVR.Append(UVtmp.Value(i));
1636 for(i=1; i<=dr; i++) {
1637 for(j=1; j<nr; j++) {
1640 myTool->AddFace(NodesR.Value(i,j), NodesR.Value(i+1,j),
1641 NodesR.Value(i+1,j+1), NodesR.Value(i,j+1));
1642 if(F) meshDS->SetMeshElementOnShape(F, geomFaceID);
1646 myTool->AddFace(NodesR.Value(i,j), NodesR.Value(i,j+1),
1647 NodesR.Value(i+1,j+1), NodesR.Value(i+1,j));
1648 if(F) meshDS->SetMeshElementOnShape(F, geomFaceID);
1654 // fill UVR using c2d
1655 for(i=1; i<npr.Length() && UVR.Length()<nbv-nnn-1; i++) {
1656 UVR.Append( gp_UV( uv_er[i].u, uv_er[i].v ));
1660 // step3: create faces for central domain
1661 StdMeshers_Array2OfNode NodesC(1,nb,1,nbv);
1662 // add first string using NodesL
1663 for(i=1; i<=dl+1; i++)
1664 NodesC.SetValue(1,i,NodesL(i,1));
1665 for(i=2; i<=nl; i++)
1666 NodesC.SetValue(1,dl+i,NodesL(dl+1,i));
1667 // add last string using NodesR
1668 for(i=1; i<=dr+1; i++)
1669 NodesC.SetValue(nb,i,NodesR(i,nr));
1671 NodesC.SetValue(nb,dr+i+1,NodesR(dr+1,nr-i));
1672 // add top nodes (last columns)
1673 for(i=dl+2; i<nbh-dr; i++)
1674 NodesC.SetValue(i-dl,nbv,uv_et[i-1].node);
1675 // add bottom nodes (first columns)
1677 NodesC.SetValue(i,1,uv_eb[i-1].node);
1679 // create and add needed nodes
1680 // add linear layers
1681 for(i=2; i<nb; i++) {
1682 double x0 = npt.Value(dl+i);
1684 for(j=1; j<nnn; j++) {
1685 double y0 = npl.Value(nbv-nnn+j);
1686 double y1 = npr.Value(nbv-nnn+j);
1687 gp_UV UV = CalcUV(x0, x1, y0, y1, quad, a0, a1, a2, a3);
1688 gp_Pnt P = S->Value(UV.X(),UV.Y());
1689 SMDS_MeshNode* N = meshDS->AddNode(P.X(), P.Y(), P.Z());
1690 meshDS->SetNodeOnFace(N, geomFaceID, UV.X(), UV.Y());
1691 NodesC.SetValue(i,nbv-nnn+j,N);
1694 // add diagonal layers
1695 //cout<<"UVL.Length()="<<UVL.Length()<<" UVR.Length()="<<UVR.Length()<<endl;
1696 //cout<<"Dump UVL:"<<endl;
1697 //for(i=1; i<=UVL.Length(); i++) {
1698 // cout<<" ("<<UVL.Value(i).X()<<","<<UVL.Value(i).Y()<<")";
1701 for(i=1; i<nbv-nnn; i++) {
1702 double du = UVR.Value(i).X() - UVL.Value(i).X();
1703 double dv = UVR.Value(i).Y() - UVL.Value(i).Y();
1704 for(j=2; j<nb; j++) {
1705 double u = UVL.Value(i).X() + du*npb.Value(j);
1706 double v = UVL.Value(i).Y() + dv*npb.Value(j);
1707 gp_Pnt P = S->Value(u,v);
1708 SMDS_MeshNode* N = meshDS->AddNode(P.X(), P.Y(), P.Z());
1709 meshDS->SetNodeOnFace(N, geomFaceID, u, v);
1710 NodesC.SetValue(j,i+1,N);
1714 for(i=1; i<nb; i++) {
1715 for(j=1; j<nbv; j++) {
1718 myTool->AddFace(NodesC.Value(i,j), NodesC.Value(i+1,j),
1719 NodesC.Value(i+1,j+1), NodesC.Value(i,j+1));
1720 if(F) meshDS->SetMeshElementOnShape(F, geomFaceID);
1724 myTool->AddFace(NodesC.Value(i,j), NodesC.Value(i,j+1),
1725 NodesC.Value(i+1,j+1), NodesC.Value(i+1,j));
1726 if(F) meshDS->SetMeshElementOnShape(F, geomFaceID);
1732 else { // New version (!OldVersion)
1733 // step1: create faces for bottom rectangle domain
1734 StdMeshers_Array2OfNode NodesBRD(1,nb,1,nnn-1);
1735 // fill UVL and UVR using c2d
1736 for(j=0; j<nb; j++) {
1737 NodesBRD.SetValue(j+1,1,uv_eb[j].node);
1739 for(i=1; i<nnn-1; i++) {
1740 NodesBRD.SetValue(1,i+1,uv_el[i].node);
1741 NodesBRD.SetValue(nb,i+1,uv_er[i].node);
1742 double du = uv_er[i].u - uv_el[i].u;
1743 double dv = uv_er[i].v - uv_el[i].v;
1744 for(j=2; j<nb; j++) {
1745 double u = uv_el[i].u + du*npb.Value(j);
1746 double v = uv_el[i].v + dv*npb.Value(j);
1747 gp_Pnt P = S->Value(u,v);
1748 SMDS_MeshNode* N = meshDS->AddNode(P.X(), P.Y(), P.Z());
1749 meshDS->SetNodeOnFace(N, geomFaceID, u, v);
1750 NodesBRD.SetValue(j,i+1,N);
1755 for(j=1; j<nnn-1; j++) {
1756 for(i=1; i<nb; i++) {
1760 myTool->AddFace(NodesBRD.Value(i,j), NodesBRD.Value(i+1,j),
1761 NodesBRD.Value(i+1,j+1), NodesBRD.Value(i,j+1));
1762 if(F) meshDS->SetMeshElementOnShape(F, geomFaceID);
1766 myTool->AddFace(NodesBRD.Value(i,j), NodesBRD.Value(i,j+1),
1767 NodesBRD.Value(i+1,j+1), NodesBRD.Value(i+1,j));
1768 if(F) meshDS->SetMeshElementOnShape(F, geomFaceID);
1772 int drl = abs(nr-nl);
1773 // create faces for region C
1774 StdMeshers_Array2OfNode NodesC(1,nb,1,drl+1+addv);
1775 // add nodes from previous region
1776 for(j=1; j<=nb; j++) {
1777 NodesC.SetValue(j,1,NodesBRD.Value(j,nnn-1));
1779 if( (drl+addv) > 0 ) {
1784 TColgp_SequenceOfXY UVtmp;
1785 double drparam = npr.Value(nr) - npr.Value(nnn-1);
1786 double dlparam = npl.Value(nnn) - npl.Value(nnn-1);
1788 for(i=1; i<=drl; i++) {
1789 // add existed nodes from right edge
1790 NodesC.SetValue(nb,i+1,uv_er[nnn+i-2].node);
1791 //double dtparam = npt.Value(i+1);
1792 y1 = npr.Value(nnn+i-1); // param on right edge
1793 double dpar = (y1 - npr.Value(nnn-1))/drparam;
1794 y0 = npl.Value(nnn-1) + dpar*dlparam; // param on left edge
1795 double dy = y1 - y0;
1796 for(j=1; j<nb; j++) {
1797 double x = npt.Value(i+1) + npb.Value(j)*(1-npt.Value(i+1));
1798 double y = y0 + dy*x;
1799 gp_UV UV = CalcUV2(x, y, quad, a0, a1, a2, a3);
1800 gp_Pnt P = S->Value(UV.X(),UV.Y());
1801 SMDS_MeshNode* N = meshDS->AddNode(P.X(), P.Y(), P.Z());
1802 meshDS->SetNodeOnFace(N, geomFaceID, UV.X(), UV.Y());
1803 NodesC.SetValue(j,i+1,N);
1806 double dy0 = (1-y0)/(addv+1);
1807 double dy1 = (1-y1)/(addv+1);
1808 for(i=1; i<=addv; i++) {
1809 double yy0 = y0 + dy0*i;
1810 double yy1 = y1 + dy1*i;
1811 double dyy = yy1 - yy0;
1812 for(j=1; j<=nb; j++) {
1813 double x = npt.Value(i+1+drl) +
1814 npb.Value(j) * ( npt.Value(nt-i) - npt.Value(i+1+drl) );
1815 double y = yy0 + dyy*x;
1816 gp_UV UV = CalcUV2(x, y, quad, a0, a1, a2, a3);
1817 gp_Pnt P = S->Value(UV.X(),UV.Y());
1818 SMDS_MeshNode* N = meshDS->AddNode(P.X(), P.Y(), P.Z());
1819 meshDS->SetNodeOnFace(N, geomFaceID, UV.X(), UV.Y());
1820 NodesC.SetValue(j,i+drl+1,N);
1827 TColgp_SequenceOfXY UVtmp;
1828 double dlparam = npl.Value(nl) - npl.Value(nnn-1);
1829 double drparam = npr.Value(nnn) - npr.Value(nnn-1);
1830 double y0 = npl.Value(nnn-1);
1831 double y1 = npr.Value(nnn-1);
1832 for(i=1; i<=drl; i++) {
1833 // add existed nodes from right edge
1834 NodesC.SetValue(1,i+1,uv_el[nnn+i-2].node);
1835 y0 = npl.Value(nnn+i-1); // param on left edge
1836 double dpar = (y0 - npl.Value(nnn-1))/dlparam;
1837 y1 = npr.Value(nnn-1) + dpar*drparam; // param on right edge
1838 double dy = y1 - y0;
1839 for(j=2; j<=nb; j++) {
1840 double x = npb.Value(j)*npt.Value(nt-i);
1841 double y = y0 + dy*x;
1842 gp_UV UV = CalcUV2(x, y, quad, a0, a1, a2, a3);
1843 gp_Pnt P = S->Value(UV.X(),UV.Y());
1844 SMDS_MeshNode* N = meshDS->AddNode(P.X(), P.Y(), P.Z());
1845 meshDS->SetNodeOnFace(N, geomFaceID, UV.X(), UV.Y());
1846 NodesC.SetValue(j,i+1,N);
1849 double dy0 = (1-y0)/(addv+1);
1850 double dy1 = (1-y1)/(addv+1);
1851 for(i=1; i<=addv; i++) {
1852 double yy0 = y0 + dy0*i;
1853 double yy1 = y1 + dy1*i;
1854 double dyy = yy1 - yy0;
1855 for(j=1; j<=nb; j++) {
1856 double x = npt.Value(i+1) +
1857 npb.Value(j) * ( npt.Value(nt-i-drl) - npt.Value(i+1) );
1858 double y = yy0 + dyy*x;
1859 gp_UV UV = CalcUV2(x, y, quad, a0, a1, a2, a3);
1860 gp_Pnt P = S->Value(UV.X(),UV.Y());
1861 SMDS_MeshNode* N = meshDS->AddNode(P.X(), P.Y(), P.Z());
1862 meshDS->SetNodeOnFace(N, geomFaceID, UV.X(), UV.Y());
1863 NodesC.SetValue(j,i+drl+1,N);
1868 for(j=1; j<=drl+addv; j++) {
1869 for(i=1; i<nb; i++) {
1873 myTool->AddFace(NodesC.Value(i,j), NodesC.Value(i+1,j),
1874 NodesC.Value(i+1,j+1), NodesC.Value(i,j+1));
1875 if(F) meshDS->SetMeshElementOnShape(F, geomFaceID);
1879 myTool->AddFace(NodesC.Value(i,j), NodesC.Value(i,j+1),
1880 NodesC.Value(i+1,j+1), NodesC.Value(i+1,j));
1881 if(F) meshDS->SetMeshElementOnShape(F, geomFaceID);
1886 StdMeshers_Array2OfNode NodesLast(1,nt,1,2);
1887 for(i=1; i<=nt; i++) {
1888 NodesLast.SetValue(i,2,uv_et[i-1].node);
1891 for(i=n1; i<drl+addv+1; i++) {
1893 NodesLast.SetValue(nnn,1,NodesC.Value(1,i));
1895 for(i=1; i<=nb; i++) {
1897 NodesLast.SetValue(nnn,1,NodesC.Value(i,drl+addv+1));
1899 for(i=drl+addv; i>=n2; i--) {
1901 NodesLast.SetValue(nnn,1,NodesC.Value(nb,i));
1903 for(i=1; i<nt; i++) {
1907 myTool->AddFace(NodesLast.Value(i,1), NodesLast.Value(i+1,1),
1908 NodesLast.Value(i+1,2), NodesLast.Value(i,2));
1909 if(F) meshDS->SetMeshElementOnShape(F, geomFaceID);
1913 myTool->AddFace(NodesLast.Value(i,1), NodesLast.Value(i,2),
1914 NodesLast.Value(i+1,2), NodesLast.Value(i+1,2));
1915 if(F) meshDS->SetMeshElementOnShape(F, geomFaceID);
1918 } // if( (drl+addv) > 0 )
1920 } // end new version implementation
1927 //=======================================================================
1929 * Evaluate only quandrangle faces
1931 //=======================================================================
1933 bool StdMeshers_Quadrangle_2D::EvaluateQuadPref(SMESH_Mesh & aMesh,
1934 const TopoDS_Shape& aShape,
1935 std::vector<int>& aNbNodes,
1936 MapShapeNbElems& aResMap,
1939 // Auxilary key in order to keep old variant
1940 // of meshing after implementation new variant
1941 // for bug 0016220 from Mantis.
1942 bool OldVersion = false;
1944 const TopoDS_Face& F = TopoDS::Face(aShape);
1945 Handle(Geom_Surface) S = BRep_Tool::Surface(F);
1947 int nb = aNbNodes[0];
1948 int nr = aNbNodes[1];
1949 int nt = aNbNodes[2];
1950 int nl = aNbNodes[3];
1951 int dh = abs(nb-nt);
1952 int dv = abs(nr-nl);
1956 // it is a base case => not shift
1959 // we have to shift on 2
1968 // we have to shift quad on 1
1975 // we have to shift quad on 3
1985 int nbh = Max(nb,nt);
1986 int nbv = Max(nr,nl);
2001 // add some params to right and left after the first param
2008 int nnn = Min(nr,nl);
2013 // step1: create faces for left domain
2015 nbNodes += dl*(nl-1);
2016 nbFaces += dl*(nl-1);
2018 // step2: create faces for right domain
2020 nbNodes += dr*(nr-1);
2021 nbFaces += dr*(nr-1);
2023 // step3: create faces for central domain
2024 nbNodes += (nb-2)*(nnn-1) + (nbv-nnn-1)*(nb-2);
2025 nbFaces += (nb-1)*(nbv-1);
2027 else { // New version (!OldVersion)
2028 nbNodes += (nnn-2)*(nb-2);
2029 nbFaces += (nnn-2)*(nb-1);
2030 int drl = abs(nr-nl);
2031 nbNodes += drl*(nb-1) + addv*nb;
2032 nbFaces += (drl+addv)*(nb-1) + (nt-1);
2033 } // end new version implementation
2035 std::vector<int> aVec(SMDSEntity_Last);
2036 for(int i=SMDSEntity_Node; i<SMDSEntity_Last; i++) aVec[i] = 0;
2038 aVec[SMDSEntity_Quad_Quadrangle] = nbFaces;
2039 aVec[SMDSEntity_Node] = nbNodes + nbFaces*4;
2040 if( aNbNodes.size()==5 ) {
2041 aVec[SMDSEntity_Quad_Triangle] = aNbNodes[3] - 1;
2042 aVec[SMDSEntity_Quad_Quadrangle] = nbFaces - aNbNodes[3] + 1;
2046 aVec[SMDSEntity_Node] = nbNodes;
2047 aVec[SMDSEntity_Quadrangle] = nbFaces;
2048 if( aNbNodes.size()==5 ) {
2049 aVec[SMDSEntity_Triangle] = aNbNodes[3] - 1;
2050 aVec[SMDSEntity_Quadrangle] = nbFaces - aNbNodes[3] + 1;
2053 SMESH_subMesh * sm = aMesh.GetSubMesh(aShape);
2054 aResMap.insert(std::make_pair(sm,aVec));
2060 //=============================================================================
2061 /*! Split quadrangle in to 2 triangles by smallest diagonal
2064 //=============================================================================
2065 void StdMeshers_Quadrangle_2D::SplitQuad(SMESHDS_Mesh *theMeshDS,
2067 const SMDS_MeshNode* theNode1,
2068 const SMDS_MeshNode* theNode2,
2069 const SMDS_MeshNode* theNode3,
2070 const SMDS_MeshNode* theNode4)
2072 gp_Pnt a(theNode1->X(),theNode1->Y(),theNode1->Z());
2073 gp_Pnt b(theNode2->X(),theNode2->Y(),theNode2->Z());
2074 gp_Pnt c(theNode3->X(),theNode3->Y(),theNode3->Z());
2075 gp_Pnt d(theNode4->X(),theNode4->Y(),theNode4->Z());
2076 SMDS_MeshFace* face;
2077 if(a.Distance(c) > b.Distance(d)){
2078 face = myTool->AddFace(theNode2, theNode4 , theNode1);
2079 if(face) theMeshDS->SetMeshElementOnShape(face, theFaceID );
2080 face = myTool->AddFace(theNode2, theNode3, theNode4);
2081 if(face) theMeshDS->SetMeshElementOnShape(face, theFaceID );
2085 face = myTool->AddFace(theNode1, theNode2 ,theNode3);
2086 if(face) theMeshDS->SetMeshElementOnShape(face, theFaceID );
2087 face = myTool->AddFace(theNode1, theNode3, theNode4);
2088 if(face) theMeshDS->SetMeshElementOnShape(face, theFaceID );