-// SMESH SMESH : implementaion of SMESH idl descriptions
+// Copyright (C) 2007-2010 CEA/DEN, EDF R&D, OPEN CASCADE
//
-// Copyright (C) 2003 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
-// CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
-//
-// This library is free software; you can redistribute it and/or
-// modify it under the terms of the GNU Lesser General Public
-// License as published by the Free Software Foundation; either
-// version 2.1 of the License.
-//
-// This library is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-// Lesser General Public License for more details.
-//
-// You should have received a copy of the GNU Lesser General Public
-// License along with this library; if not, write to the Free Software
-// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-//
-// See http://www.opencascade.org/SALOME/ or email : webmaster.salome@opencascade.org
+// Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
+// CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation; either
+// version 2.1 of the License.
//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+// Lesser General Public License for more details.
//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+//
+// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
+
// File : StdMeshers_Quadrangle_2D.cxx
-// Moved here from SMESH_Quadrangle_2D.cxx
// Author : Paul RASCLE, EDF
// Module : SMESH
-// $Header$
-using namespace std;
#include "StdMeshers_Quadrangle_2D.hxx"
+
+#include "StdMeshers_FaceSide.hxx"
+
+#include "StdMeshers_QuadrangleParams.hxx"
+
#include "SMESH_Gen.hxx"
#include "SMESH_Mesh.hxx"
#include "SMESH_subMesh.hxx"
+#include "SMESH_MesherHelper.hxx"
+#include "SMESH_Block.hxx"
+#include "SMESH_Comment.hxx"
#include "SMDS_MeshElement.hxx"
#include "SMDS_MeshNode.hxx"
#include "SMDS_FacePosition.hxx"
#include <BRep_Tool.hxx>
-#include <BRepTools.hxx>
-#include <BRepTools_WireExplorer.hxx>
-
#include <Geom_Surface.hxx>
-#include <Geom_Curve.hxx>
-#include <Geom2d_Curve.hxx>
-#include <GeomAdaptor_Curve.hxx>
-#include <GCPnts_UniformAbscissa.hxx>
-
+#include <NCollection_DefineArray2.hxx>
#include <Precision.hxx>
-#include <gp_Pnt2d.hxx>
-#include <TColStd_ListIteratorOfListOfInteger.hxx>
+#include <TColStd_SequenceOfReal.hxx>
+#include <TColStd_SequenceOfInteger.hxx>
+#include <TColgp_SequenceOfXY.hxx>
+#include <TopExp.hxx>
+#include <TopExp_Explorer.hxx>
+#include <TopTools_ListIteratorOfListOfShape.hxx>
+#include <TopTools_MapOfShape.hxx>
+#include <TopoDS.hxx>
#include "utilities.h"
#include "Utils_ExceptHandlers.hxx"
+#ifndef StdMeshers_Array2OfNode_HeaderFile
+#define StdMeshers_Array2OfNode_HeaderFile
+typedef const SMDS_MeshNode* SMDS_MeshNodePtr;
+DEFINE_BASECOLLECTION (StdMeshers_BaseCollectionNodePtr, SMDS_MeshNodePtr)
+DEFINE_ARRAY2(StdMeshers_Array2OfNode,
+ StdMeshers_BaseCollectionNodePtr, SMDS_MeshNodePtr)
+#endif
+
+using namespace std;
+
+typedef gp_XY gp_UV;
+typedef SMESH_Comment TComm;
//=============================================================================
/*!
*/
//=============================================================================
-StdMeshers_Quadrangle_2D::StdMeshers_Quadrangle_2D (int hypId, int studyId, SMESH_Gen* gen)
+StdMeshers_Quadrangle_2D::StdMeshers_Quadrangle_2D (int hypId, int studyId,
+ SMESH_Gen* gen)
: SMESH_2D_Algo(hypId, studyId, gen)
{
MESSAGE("StdMeshers_Quadrangle_2D::StdMeshers_Quadrangle_2D");
_name = "Quadrangle_2D";
_shapeType = (1 << TopAbs_FACE);
+ _compatibleHypothesis.push_back("QuadrangleParams");
_compatibleHypothesis.push_back("QuadranglePreference");
+ _compatibleHypothesis.push_back("TrianglePreference");
+ myTool = 0;
}
//=============================================================================
bool isOk = true;
aStatus = SMESH_Hypothesis::HYP_OK;
- // there is only one compatible Hypothesis so far
- const list <const SMESHDS_Hypothesis * >&hyps = GetUsedHypothesis(aMesh, aShape);
- myQuadranglePreference = hyps.size() > 0;
+ const list <const SMESHDS_Hypothesis * >& hyps =
+ GetUsedHypothesis(aMesh, aShape, false);
+ const SMESHDS_Hypothesis * aHyp = 0;
+
+ myTriaVertexID = -1;
+ myQuadType = QUAD_STANDARD;
+ myQuadranglePreference = false;
+ myTrianglePreference = false;
+
+ bool isFirstParams = true;
+
+ // First assigned hypothesis (if any) is processed now
+ if (hyps.size() > 0) {
+ aHyp = hyps.front();
+ if (strcmp("QuadrangleParams", aHyp->GetName()) == 0) {
+ const StdMeshers_QuadrangleParams* aHyp1 =
+ (const StdMeshers_QuadrangleParams*)aHyp;
+ myTriaVertexID = aHyp1->GetTriaVertex();
+ myQuadType = aHyp1->GetQuadType();
+ if (myQuadType == QUAD_QUADRANGLE_PREF ||
+ myQuadType == QUAD_QUADRANGLE_PREF_REVERSED)
+ myQuadranglePreference = true;
+ else if (myQuadType == QUAD_TRIANGLE_PREF)
+ myTrianglePreference = true;
+ }
+ else if (strcmp("QuadranglePreference", aHyp->GetName()) == 0) {
+ isFirstParams = false;
+ myQuadranglePreference = true;
+ }
+ else if (strcmp("TrianglePreference", aHyp->GetName()) == 0){
+ isFirstParams = false;
+ myTrianglePreference = true;
+ }
+ else {
+ isFirstParams = false;
+ }
+ }
+
+ // Second(last) assigned hypothesis (if any) is processed now
+ if (hyps.size() > 1) {
+ aHyp = hyps.back();
+ if (isFirstParams) {
+ if (strcmp("QuadranglePreference", aHyp->GetName()) == 0) {
+ myQuadranglePreference = true;
+ myTrianglePreference = false;
+ myQuadType = QUAD_STANDARD;
+ }
+ else if (strcmp("TrianglePreference", aHyp->GetName()) == 0){
+ myQuadranglePreference = false;
+ myTrianglePreference = true;
+ myQuadType = QUAD_STANDARD;
+ }
+ }
+ else {
+ const StdMeshers_QuadrangleParams* aHyp2 =
+ (const StdMeshers_QuadrangleParams*)aHyp;
+ myTriaVertexID = aHyp2->GetTriaVertex();
+
+ if (!myQuadranglePreference && !myTrianglePreference) { // priority of hypos
+ myQuadType = aHyp2->GetQuadType();
+ if (myQuadType == QUAD_QUADRANGLE_PREF ||
+ myQuadType == QUAD_QUADRANGLE_PREF_REVERSED)
+ myQuadranglePreference = true;
+ else if (myQuadType == QUAD_TRIANGLE_PREF)
+ myTrianglePreference = true;
+ }
+ }
+ }
return isOk;
}
//=============================================================================
bool StdMeshers_Quadrangle_2D::Compute (SMESH_Mesh& aMesh,
- const TopoDS_Shape& aShape) throw (SALOME_Exception)
+ const TopoDS_Shape& aShape)// throw (SALOME_Exception)
{
- Unexpect aCatch(SalomeException);
- //MESSAGE("StdMeshers_Quadrangle_2D::Compute");
+ // PAL14921. Enable catching std::bad_alloc and Standard_OutOfMemory outside
+ //Unexpect aCatchSalomeException);
+
SMESHDS_Mesh * meshDS = aMesh.GetMeshDS();
aMesh.GetSubMesh(aShape);
- FaceQuadStruct *quad = CheckAnd2Dcompute(aMesh, aShape);
+ SMESH_MesherHelper helper (aMesh);
+ myTool = &helper;
+
+ _quadraticMesh = myTool->IsQuadraticSubMesh(aShape);
+
+ FaceQuadStruct *quad = CheckNbEdges(aMesh, aShape);
+ std::auto_ptr<FaceQuadStruct> quadDeleter (quad); // to delete quad at exit from Compute()
if (!quad)
return false;
+ if (myQuadranglePreference) {
+ int n1 = quad->side[0]->NbPoints();
+ int n2 = quad->side[1]->NbPoints();
+ int n3 = quad->side[2]->NbPoints();
+ int n4 = quad->side[3]->NbPoints();
+ int nfull = n1+n2+n3+n4;
+ int ntmp = nfull/2;
+ ntmp = ntmp*2;
+ if (nfull == ntmp && ((n1 != n3) || (n2 != n4))) {
+ // special path for using only quandrangle faces
+ bool ok = ComputeQuadPref(aMesh, aShape, quad);
+ return ok;
+ }
+ }
+ else if (myQuadType == QUAD_REDUCED) {
+ int n1 = quad->side[0]->NbPoints();
+ int n2 = quad->side[1]->NbPoints();
+ int n3 = quad->side[2]->NbPoints();
+ int n4 = quad->side[3]->NbPoints();
+ int n13 = n1 - n3;
+ int n24 = n2 - n4;
+ int n13tmp = n13/2; n13tmp = n13tmp*2;
+ int n24tmp = n24/2; n24tmp = n24tmp*2;
+ if ((n1 == n3 && n2 != n4 && n24tmp == n24) ||
+ (n2 == n4 && n1 != n3 && n13tmp == n13)) {
+ bool ok = ComputeReduced(aMesh, aShape, quad);
+ return ok;
+ }
+ }
+
+ // set normalized grid on unit square in parametric domain
+
+ if (!SetNormalizedGrid(aMesh, aShape, quad))
+ return false;
+
// --- compute 3D values on points, store points & quadrangles
- int nbdown = quad->nbPts[0];
- int nbup = quad->nbPts[2];
+ int nbdown = quad->side[0]->NbPoints();
+ int nbup = quad->side[2]->NbPoints();
- int nbright = quad->nbPts[1];
- int nbleft = quad->nbPts[3];
+ int nbright = quad->side[1]->NbPoints();
+ int nbleft = quad->side[3]->NbPoints();
int nbhoriz = Min(nbdown, nbup);
int nbvertic = Min(nbright, nbleft);
Handle(Geom_Surface) S = BRep_Tool::Surface(F);
// internal mesh nodes
- int i, j, geomFaceID = meshDS->ShapeToIndex( F );
+ int i, j, geomFaceID = meshDS->ShapeToIndex(F);
for (i = 1; i < nbhoriz - 1; i++) {
for (j = 1; j < nbvertic - 1; j++) {
int ij = j * nbhoriz + i;
quad->uv_grid[ij].node = node;
}
}
-
+
// mesh faces
// [2]
// 0 > > > > > > > > nbhoriz
// i
// [0]
-
+
i = 0;
int ilow = 0;
int iup = nbhoriz - 1;
if (quad->isEdgeOut[3]) { ilow++; } else { if (quad->isEdgeOut[1]) iup--; }
-
+
int jlow = 0;
int jup = nbvertic - 1;
if (quad->isEdgeOut[0]) { jlow++; } else { if (quad->isEdgeOut[2]) jup--; }
-
+
// regular quadrangles
for (i = ilow; i < iup; i++) {
for (j = jlow; j < jup; j++) {
b = quad->uv_grid[j * nbhoriz + i + 1].node;
c = quad->uv_grid[(j + 1) * nbhoriz + i + 1].node;
d = quad->uv_grid[(j + 1) * nbhoriz + i].node;
- SMDS_MeshFace * face = meshDS->AddFace(a, b, c, d);
- meshDS->SetMeshElementOnShape(face, geomFaceID);
+ SMDS_MeshFace* face = myTool->AddFace(a, b, c, d);
+ if (face) {
+ meshDS->SetMeshElementOnShape(face, geomFaceID);
+ }
}
}
- UVPtStruct *uv_e0 = quad->uv_edges[0];
- UVPtStruct *uv_e1 = quad->uv_edges[1];
- UVPtStruct *uv_e2 = quad->uv_edges[2];
- UVPtStruct *uv_e3 = quad->uv_edges[3];
+ const vector<UVPtStruct>& uv_e0 = quad->side[0]->GetUVPtStruct(true,0);
+ const vector<UVPtStruct>& uv_e1 = quad->side[1]->GetUVPtStruct(false,1);
+ const vector<UVPtStruct>& uv_e2 = quad->side[2]->GetUVPtStruct(true,1);
+ const vector<UVPtStruct>& uv_e3 = quad->side[3]->GetUVPtStruct(false,0);
+
+ if (uv_e0.empty() || uv_e1.empty() || uv_e2.empty() || uv_e3.empty())
+ return error(COMPERR_BAD_INPUT_MESH);
double eps = Precision::Confusion();
// Boundary quadrangles
-
+
if (quad->isEdgeOut[0]) {
// Down edge is out
//
// . . . . . . . . . __ down edge nodes
//
// >->->->->->->->->->->->-> -- direction of processing
-
+
int g = 0; // number of last processed node in the regular grid
-
+
// number of last node of the down edge to be processed
int stop = nbdown - 1;
// if right edge is out, we will stop at a node, previous to the last one
if (quad->isEdgeOut[1]) stop--;
-
+
// for each node of the down edge find nearest node
// in the first row of the regular grid and link them
for (i = 0; i < stop; i++) {
a = uv_e0[i].node;
b = uv_e0[i + 1].node;
gp_Pnt pb (b->X(), b->Y(), b->Z());
-
+
// find node c in the regular grid, which will be linked with node b
int near = g;
if (i == stop - 1) {
// right bound reached, link with the rightmost node
near = iup;
c = quad->uv_grid[nbhoriz + iup].node;
- } else {
+ }
+ else {
// find in the grid node c, nearest to the b
double mind = RealLast();
for (int k = g; k <= iup; k++) {
-
+
const SMDS_MeshNode *nk;
if (k < ilow) // this can be, if left edge is out
nk = uv_e3[1].node; // get node from the left edge
}
if (near == g) { // make triangle
- SMDS_MeshFace* face = meshDS->AddFace(a, b, c);
- meshDS->SetMeshElementOnShape(face, geomFaceID);
- } else { // make quadrangle
+ SMDS_MeshFace* face = myTool->AddFace(a, b, c);
+ if (face) meshDS->SetMeshElementOnShape(face, geomFaceID);
+ }
+ else { // make quadrangle
if (near - 1 < ilow)
d = uv_e3[1].node;
else
d = quad->uv_grid[nbhoriz + near - 1].node;
- SMDS_MeshFace* face = meshDS->AddFace(a, b, c, d);
- meshDS->SetMeshElementOnShape(face, geomFaceID);
+ //SMDS_MeshFace* face = meshDS->AddFace(a, b, c, d);
+
+ if (!myTrianglePreference){
+ SMDS_MeshFace* face = myTool->AddFace(a, b, c, d);
+ if (face) meshDS->SetMeshElementOnShape(face, geomFaceID);
+ }
+ else {
+ SplitQuad(meshDS, geomFaceID, a, b, c, d);
+ }
// if node d is not at position g - make additional triangles
if (near - 1 > g) {
d = uv_e3[1].node;
else
d = quad->uv_grid[nbhoriz + k - 1].node;
- SMDS_MeshFace* face = meshDS->AddFace(a, c, d);
- meshDS->SetMeshElementOnShape(face, geomFaceID);
+ SMDS_MeshFace* face = myTool->AddFace(a, c, d);
+ if (face) meshDS->SetMeshElementOnShape(face, geomFaceID);
}
}
g = near;
}
if (near == g) { // make triangle
- SMDS_MeshFace* face = meshDS->AddFace(a, b, c);
- meshDS->SetMeshElementOnShape(face, geomFaceID);
- } else { // make quadrangle
+ SMDS_MeshFace* face = myTool->AddFace(a, b, c);
+ if (face) meshDS->SetMeshElementOnShape(face, geomFaceID);
+ }
+ else { // make quadrangle
if (near + 1 > iup)
d = uv_e1[nbright - 2].node;
else
d = quad->uv_grid[nbhoriz*(nbvertic - 2) + near + 1].node;
- SMDS_MeshFace* face = meshDS->AddFace(a, b, c, d);
- meshDS->SetMeshElementOnShape(face, geomFaceID);
+ //SMDS_MeshFace* face = meshDS->AddFace(a, b, c, d);
+ if (!myTrianglePreference){
+ SMDS_MeshFace* face = myTool->AddFace(a, b, c, d);
+ if (face) meshDS->SetMeshElementOnShape(face, geomFaceID);
+ }
+ else {
+ SplitQuad(meshDS, geomFaceID, a, b, c, d);
+ }
if (near + 1 < g) { // if d not is at g - make additional triangles
for (int k = near + 1; k < g; k++) {
d = uv_e1[nbright - 2].node;
else
d = quad->uv_grid[nbhoriz*(nbvertic - 2) + k + 1].node;
- SMDS_MeshFace* face = meshDS->AddFace(a, c, d);
- meshDS->SetMeshElementOnShape(face, geomFaceID);
+ SMDS_MeshFace* face = myTool->AddFace(a, c, d);
+ if (face) meshDS->SetMeshElementOnShape(face, geomFaceID);
}
}
g = near;
}
if (near == g) { // make triangle
- SMDS_MeshFace* face = meshDS->AddFace(a, b, c);
- meshDS->SetMeshElementOnShape(face, geomFaceID);
- } else { // make quadrangle
+ SMDS_MeshFace* face = myTool->AddFace(a, b, c);
+ if (face) meshDS->SetMeshElementOnShape(face, geomFaceID);
+ }
+ else { // make quadrangle
if (near - 1 < jlow)
d = uv_e0[nbdown - 2].node;
else
d = quad->uv_grid[nbhoriz*near - 2].node;
- SMDS_MeshFace* face = meshDS->AddFace(a, b, c, d);
- meshDS->SetMeshElementOnShape(face, geomFaceID);
+ //SMDS_MeshFace* face = meshDS->AddFace(a, b, c, d);
+
+ if (!myTrianglePreference){
+ SMDS_MeshFace* face = myTool->AddFace(a, b, c, d);
+ if (face) meshDS->SetMeshElementOnShape(face, geomFaceID);
+ }
+ else {
+ SplitQuad(meshDS, geomFaceID, a, b, c, d);
+ }
if (near - 1 > g) { // if d not is at g - make additional triangles
for (int k = near - 1; k > g; k--) {
d = uv_e0[nbdown - 2].node;
else
d = quad->uv_grid[nbhoriz*k - 2].node;
- SMDS_MeshFace* face = meshDS->AddFace(a, c, d);
- meshDS->SetMeshElementOnShape(face, geomFaceID);
+ SMDS_MeshFace* face = myTool->AddFace(a, c, d);
+ if (face) meshDS->SetMeshElementOnShape(face, geomFaceID);
}
}
g = near;
}
if (near == g) { // make triangle
- SMDS_MeshFace* face = meshDS->AddFace(a, b, c);
- meshDS->SetMeshElementOnShape(face, geomFaceID);
- } else { // make quadrangle
+ SMDS_MeshFace* face = myTool->AddFace(a, b, c);
+ if (face) meshDS->SetMeshElementOnShape(face, geomFaceID);
+ }
+ else { // make quadrangle
if (near + 1 > jup)
d = uv_e2[1].node;
else
d = quad->uv_grid[nbhoriz*(near + 1) + 1].node;
- SMDS_MeshFace* face = meshDS->AddFace(a, b, c, d);
- meshDS->SetMeshElementOnShape(face, geomFaceID);
+ //SMDS_MeshFace* face = meshDS->AddFace(a, b, c, d);
+ if (!myTrianglePreference){
+ SMDS_MeshFace* face = myTool->AddFace(a, b, c, d);
+ if (face) meshDS->SetMeshElementOnShape(face, geomFaceID);
+ }
+ else {
+ SplitQuad(meshDS, geomFaceID, a, b, c, d);
+ }
if (near + 1 < g) { // if d not is at g - make additional triangles
for (int k = near + 1; k < g; k++) {
d = uv_e2[1].node;
else
d = quad->uv_grid[nbhoriz*(k + 1) + 1].node;
- SMDS_MeshFace* face = meshDS->AddFace(a, c, d);
- meshDS->SetMeshElementOnShape(face, geomFaceID);
+ SMDS_MeshFace* face = myTool->AddFace(a, c, d);
+ if (face) meshDS->SetMeshElementOnShape(face, geomFaceID);
}
}
g = near;
}
}
- QuadDelete(quad);
bool isOk = true;
return isOk;
}
+
//=============================================================================
/*!
- *
+ * Evaluate
*/
//=============================================================================
-FaceQuadStruct *StdMeshers_Quadrangle_2D::CheckAnd2Dcompute
- (SMESH_Mesh & aMesh, const TopoDS_Shape & aShape) throw(SALOME_Exception)
+bool StdMeshers_Quadrangle_2D::Evaluate(SMESH_Mesh& aMesh,
+ const TopoDS_Shape& aShape,
+ MapShapeNbElems& aResMap)
+
{
- Unexpect aCatch(SalomeException);
+ aMesh.GetSubMesh(aShape);
- const TopoDS_Face & F = TopoDS::Face(aShape);
+ std::vector<int> aNbNodes(4);
+ bool IsQuadratic = false;
+ if (!CheckNbEdgesForEvaluate(aMesh, aShape, aResMap, aNbNodes, IsQuadratic)) {
+ std::vector<int> aResVec(SMDSEntity_Last);
+ for (int i=SMDSEntity_Node; i<SMDSEntity_Last; i++) aResVec[i] = 0;
+ SMESH_subMesh * sm = aMesh.GetSubMesh(aShape);
+ aResMap.insert(std::make_pair(sm,aResVec));
+ SMESH_ComputeErrorPtr& smError = sm->GetComputeError();
+ smError.reset(new SMESH_ComputeError(COMPERR_ALGO_FAILED,"Submesh can not be evaluated",this));
+ return false;
+ }
- // verify 1 wire only, with 4 edges
+ if (myQuadranglePreference) {
+ int n1 = aNbNodes[0];
+ int n2 = aNbNodes[1];
+ int n3 = aNbNodes[2];
+ int n4 = aNbNodes[3];
+ int nfull = n1+n2+n3+n4;
+ int ntmp = nfull/2;
+ ntmp = ntmp*2;
+ if (nfull==ntmp && ((n1!=n3) || (n2!=n4))) {
+ // special path for using only quandrangle faces
+ return EvaluateQuadPref(aMesh, aShape, aNbNodes, aResMap, IsQuadratic);
+ //return true;
+ }
+ }
- if (NumberOfWires(F) != 1)
- {
- INFOS("only 1 wire by face (quadrangles)");
- return 0;
+ int nbdown = aNbNodes[0];
+ int nbup = aNbNodes[2];
+
+ int nbright = aNbNodes[1];
+ int nbleft = aNbNodes[3];
+
+ int nbhoriz = Min(nbdown, nbup);
+ int nbvertic = Min(nbright, nbleft);
+
+ int dh = Max(nbdown, nbup) - nbhoriz;
+ int dv = Max(nbright, nbleft) - nbvertic;
+
+ //int kdh = 0;
+ //if (dh>0) kdh = 1;
+ //int kdv = 0;
+ //if (dv>0) kdv = 1;
+
+ int nbNodes = (nbhoriz-2)*(nbvertic-2);
+ //int nbFaces3 = dh + dv + kdh*(nbvertic-1)*2 + kdv*(nbhoriz-1)*2;
+ int nbFaces3 = dh + dv;
+ //if (kdh==1 && kdv==1) nbFaces3 -= 2;
+ //if (dh>0 && dv>0) nbFaces3 -= 2;
+ //int nbFaces4 = (nbhoriz-1-kdh)*(nbvertic-1-kdv);
+ int nbFaces4 = (nbhoriz-1)*(nbvertic-1);
+
+ std::vector<int> aVec(SMDSEntity_Last);
+ for (int i=SMDSEntity_Node; i<SMDSEntity_Last; i++) aVec[i] = 0;
+ if (IsQuadratic) {
+ aVec[SMDSEntity_Quad_Triangle] = nbFaces3;
+ aVec[SMDSEntity_Quad_Quadrangle] = nbFaces4;
+ int nbbndedges = nbdown + nbup + nbright + nbleft -4;
+ int nbintedges = (nbFaces4*4 + nbFaces3*3 - nbbndedges) / 2;
+ aVec[SMDSEntity_Node] = nbNodes + nbintedges;
+ if (aNbNodes.size()==5) {
+ aVec[SMDSEntity_Quad_Triangle] = nbFaces3 + aNbNodes[3] -1;
+ aVec[SMDSEntity_Quad_Quadrangle] = nbFaces4 - aNbNodes[3] +1;
+ }
+ }
+ else {
+ aVec[SMDSEntity_Node] = nbNodes;
+ aVec[SMDSEntity_Triangle] = nbFaces3;
+ aVec[SMDSEntity_Quadrangle] = nbFaces4;
+ if (aNbNodes.size()==5) {
+ aVec[SMDSEntity_Triangle] = nbFaces3 + aNbNodes[3] - 1;
+ aVec[SMDSEntity_Quadrangle] = nbFaces4 - aNbNodes[3] + 1;
+ }
}
- const TopoDS_Wire& W = BRepTools::OuterWire(F);
- BRepTools_WireExplorer wexp (W, F);
+ SMESH_subMesh * sm = aMesh.GetSubMesh(aShape);
+ aResMap.insert(std::make_pair(sm,aVec));
+
+ return true;
+}
+
+
+//================================================================================
+/*!
+ * \brief Return true if only two given edges meat at their common vertex
+ */
+//================================================================================
+
+static bool twoEdgesMeatAtVertex(const TopoDS_Edge& e1,
+ const TopoDS_Edge& e2,
+ SMESH_Mesh & mesh)
+{
+ TopoDS_Vertex v;
+ if (!TopExp::CommonVertex(e1, e2, v))
+ return false;
+ TopTools_ListIteratorOfListOfShape ancestIt(mesh.GetAncestors(v));
+ for (; ancestIt.More() ; ancestIt.Next())
+ if (ancestIt.Value().ShapeType() == TopAbs_EDGE)
+ if (!e1.IsSame(ancestIt.Value()) && !e2.IsSame(ancestIt.Value()))
+ return false;
+ return true;
+}
+
+//=============================================================================
+/*!
+ *
+ */
+//=============================================================================
+
+FaceQuadStruct* StdMeshers_Quadrangle_2D::CheckNbEdges(SMESH_Mesh & aMesh,
+ const TopoDS_Shape & aShape)
+ //throw(SALOME_Exception)
+{
+ TopoDS_Face F = TopoDS::Face(aShape);
+ if ( F.Orientation() >= TopAbs_INTERNAL ) F.Orientation( TopAbs_FORWARD );
+ const bool ignoreMediumNodes = _quadraticMesh;
- FaceQuadStruct *quad = new FaceQuadStruct;
- for (int i = 0; i < 4; i++)
- quad->uv_edges[i] = 0;
+ // verify 1 wire only, with 4 edges
+ TopoDS_Vertex V;
+ list< TopoDS_Edge > edges;
+ list< int > nbEdgesInWire;
+ int nbWire = SMESH_Block::GetOrderedEdges (F, V, edges, nbEdgesInWire);
+ if (nbWire != 1) {
+ error(COMPERR_BAD_SHAPE, TComm("Wrong number of wires: ") << nbWire);
+ return 0;
+ }
+ FaceQuadStruct* quad = new FaceQuadStruct;
quad->uv_grid = 0;
+ quad->side.reserve(nbEdgesInWire.front());
+ quad->face = F;
- int nbEdges = 0;
- for (wexp.Init(W, F); wexp.More(); wexp.Next())
+ int nbSides = 0;
+ list< TopoDS_Edge >::iterator edgeIt = edges.begin();
+ if (nbEdgesInWire.front() == 3) // exactly 3 edges
{
- const TopoDS_Edge& E = wexp.Current();
- int nb = aMesh.GetSubMesh(E)->GetSubMeshDS()->NbNodes();
- if (nbEdges < 4)
+ SMESH_Comment comment;
+ SMESHDS_Mesh* meshDS = aMesh.GetMeshDS();
+ if (myTriaVertexID == -1)
{
- quad->edge[nbEdges] = E;
- quad->nbPts[nbEdges] = nb + 2; // internal points + 2 extrema
+ comment << "No Base vertex parameter provided for a trilateral geometrical face";
+ }
+ else
+ {
+ TopoDS_Vertex V = TopoDS::Vertex(meshDS->IndexToShape(myTriaVertexID));
+ if (!V.IsNull()) {
+ TopoDS_Edge E1,E2,E3;
+ for (; edgeIt != edges.end(); ++edgeIt) {
+ TopoDS_Edge E = *edgeIt;
+ TopoDS_Vertex VF, VL;
+ TopExp::Vertices(E, VF, VL, true);
+ if (VF.IsSame(V))
+ E1 = E;
+ else if (VL.IsSame(V))
+ E3 = E;
+ else
+ E2 = E;
+ }
+ if (!E1.IsNull() && !E2.IsNull() && !E3.IsNull())
+ {
+ quad->side.push_back(new StdMeshers_FaceSide(F, E1, &aMesh, true, ignoreMediumNodes));
+ quad->side.push_back(new StdMeshers_FaceSide(F, E2, &aMesh, true, ignoreMediumNodes));
+ quad->side.push_back(new StdMeshers_FaceSide(F, E3, &aMesh, false,ignoreMediumNodes));
+ const vector<UVPtStruct>& UVPSleft = quad->side[0]->GetUVPtStruct(true,0);
+ /* vector<UVPtStruct>& UVPStop = */quad->side[1]->GetUVPtStruct(false,1);
+ /* vector<UVPtStruct>& UVPSright = */quad->side[2]->GetUVPtStruct(true,1);
+ const SMDS_MeshNode* aNode = UVPSleft[0].node;
+ gp_Pnt2d aPnt2d(UVPSleft[0].u, UVPSleft[0].v);
+ quad->side.push_back(new StdMeshers_FaceSide(aNode, aPnt2d, quad->side[1]));
+ return quad;
+ }
+ }
+ comment << "Invalid Base vertex parameter: " << myTriaVertexID << " is not among [";
+ TopTools_MapOfShape vMap;
+ for (TopExp_Explorer v(aShape, TopAbs_VERTEX); v.More(); v.Next())
+ if (vMap.Add(v.Current()))
+ comment << meshDS->ShapeToIndex(v.Current()) << (vMap.Extent()==3 ? "]" : ", ");
+ }
+ error(comment);
+ delete quad;
+ return quad = 0;
+ }
+ else if (nbEdgesInWire.front() == 4) { // exactly 4 edges
+ for (; edgeIt != edges.end(); ++edgeIt, nbSides++)
+ quad->side.push_back(new StdMeshers_FaceSide(F, *edgeIt, &aMesh,
+ nbSides<TOP_SIDE, ignoreMediumNodes));
+ }
+ else if (nbEdgesInWire.front() > 4) { // more than 4 edges - try to unite some
+ list< TopoDS_Edge > sideEdges;
+ while (!edges.empty()) {
+ sideEdges.clear();
+ sideEdges.splice(sideEdges.end(), edges, edges.begin()); // edges.front() -> sideEdges.end()
+ bool sameSide = true;
+ while (!edges.empty() && sameSide) {
+ sameSide = SMESH_Algo::IsContinuous(sideEdges.back(), edges.front());
+ if (sameSide)
+ sideEdges.splice(sideEdges.end(), edges, edges.begin());
+ }
+ if (nbSides == 0) { // go backward from the first edge
+ sameSide = true;
+ while (!edges.empty() && sameSide) {
+ sameSide = SMESH_Algo::IsContinuous(sideEdges.front(), edges.back());
+ if (sameSide)
+ sideEdges.splice(sideEdges.begin(), edges, --edges.end());
+ }
+ }
+ quad->side.push_back(new StdMeshers_FaceSide(F, sideEdges, &aMesh,
+ nbSides<TOP_SIDE, ignoreMediumNodes));
+ ++nbSides;
+ }
+ // issue 20222. Try to unite only edges shared by two same faces
+ if (nbSides < 4) {
+ // delete found sides
+ { FaceQuadStruct cleaner(*quad); }
+ quad->side.clear();
+ quad->side.reserve(nbEdgesInWire.front());
+ nbSides = 0;
+
+ SMESH_Block::GetOrderedEdges (F, V, edges, nbEdgesInWire);
+ while (!edges.empty()) {
+ sideEdges.clear();
+ sideEdges.splice(sideEdges.end(), edges, edges.begin());
+ bool sameSide = true;
+ while (!edges.empty() && sameSide) {
+ sameSide =
+ SMESH_Algo::IsContinuous(sideEdges.back(), edges.front()) &&
+ twoEdgesMeatAtVertex(sideEdges.back(), edges.front(), aMesh);
+ if (sameSide)
+ sideEdges.splice(sideEdges.end(), edges, edges.begin());
+ }
+ if (nbSides == 0) { // go backward from the first edge
+ sameSide = true;
+ while (!edges.empty() && sameSide) {
+ sameSide =
+ SMESH_Algo::IsContinuous(sideEdges.front(), edges.back()) &&
+ twoEdgesMeatAtVertex(sideEdges.front(), edges.back(), aMesh);
+ if (sameSide)
+ sideEdges.splice(sideEdges.begin(), edges, --edges.end());
+ }
+ }
+ quad->side.push_back(new StdMeshers_FaceSide(F, sideEdges, &aMesh,
+ nbSides<TOP_SIDE, ignoreMediumNodes));
+ ++nbSides;
+ }
+ }
+ }
+ if (nbSides != 4) {
+#ifdef _DEBUG_
+ MESSAGE ("StdMeshers_Quadrangle_2D. Edge IDs of " << nbSides << " sides:\n");
+ for (int i = 0; i < nbSides; ++i) {
+ MESSAGE (" (");
+ for (int e = 0; e < quad->side[i]->NbEdges(); ++e)
+ MESSAGE (myTool->GetMeshDS()->ShapeToIndex(quad->side[i]->Edge(e)) << " ");
+ MESSAGE (")\n");
}
- nbEdges++;
+ //cout << endl;
+#endif
+ if (!nbSides)
+ nbSides = nbEdgesInWire.front();
+ error(COMPERR_BAD_SHAPE, TComm("Face must have 4 sides but not ") << nbSides);
+ delete quad;
+ quad = 0;
}
- if (nbEdges != 4)
- {
- INFOS("face must have 4 edges /quadrangles");
- QuadDelete(quad);
- return 0;
+ return quad;
+}
+
+
+//=============================================================================
+/*!
+ *
+ */
+//=============================================================================
+
+bool StdMeshers_Quadrangle_2D::CheckNbEdgesForEvaluate(SMESH_Mesh& aMesh,
+ const TopoDS_Shape & aShape,
+ MapShapeNbElems& aResMap,
+ std::vector<int>& aNbNodes,
+ bool& IsQuadratic)
+
+{
+ const TopoDS_Face & F = TopoDS::Face(aShape);
+
+ // verify 1 wire only, with 4 edges
+ TopoDS_Vertex V;
+ list< TopoDS_Edge > edges;
+ list< int > nbEdgesInWire;
+ int nbWire = SMESH_Block::GetOrderedEdges (F, V, edges, nbEdgesInWire);
+ if (nbWire != 1) {
+ return false;
}
- // set normalized grid on unit square in parametric domain
+ aNbNodes.resize(4);
+
+ int nbSides = 0;
+ list< TopoDS_Edge >::iterator edgeIt = edges.begin();
+ SMESH_subMesh * sm = aMesh.GetSubMesh(*edgeIt);
+ MapShapeNbElemsItr anIt = aResMap.find(sm);
+ if (anIt==aResMap.end()) {
+ return false;
+ }
+ std::vector<int> aVec = (*anIt).second;
+ IsQuadratic = (aVec[SMDSEntity_Quad_Edge] > aVec[SMDSEntity_Edge]);
+ if (nbEdgesInWire.front() == 3) { // exactly 3 edges
+ if (myTriaVertexID>0) {
+ SMESHDS_Mesh* meshDS = aMesh.GetMeshDS();
+ TopoDS_Vertex V = TopoDS::Vertex(meshDS->IndexToShape(myTriaVertexID));
+ if (!V.IsNull()) {
+ TopoDS_Edge E1,E2,E3;
+ for (; edgeIt != edges.end(); ++edgeIt) {
+ TopoDS_Edge E = TopoDS::Edge(*edgeIt);
+ TopoDS_Vertex VF, VL;
+ TopExp::Vertices(E, VF, VL, true);
+ if (VF.IsSame(V))
+ E1 = E;
+ else if (VL.IsSame(V))
+ E3 = E;
+ else
+ E2 = E;
+ }
+ SMESH_subMesh * sm = aMesh.GetSubMesh(E1);
+ MapShapeNbElemsItr anIt = aResMap.find(sm);
+ if (anIt==aResMap.end()) return false;
+ std::vector<int> aVec = (*anIt).second;
+ if (IsQuadratic)
+ aNbNodes[0] = (aVec[SMDSEntity_Node]-1)/2 + 2;
+ else
+ aNbNodes[0] = aVec[SMDSEntity_Node] + 2;
+ sm = aMesh.GetSubMesh(E2);
+ anIt = aResMap.find(sm);
+ if (anIt==aResMap.end()) return false;
+ aVec = (*anIt).second;
+ if (IsQuadratic)
+ aNbNodes[1] = (aVec[SMDSEntity_Node]-1)/2 + 2;
+ else
+ aNbNodes[1] = aVec[SMDSEntity_Node] + 2;
+ sm = aMesh.GetSubMesh(E3);
+ anIt = aResMap.find(sm);
+ if (anIt==aResMap.end()) return false;
+ aVec = (*anIt).second;
+ if (IsQuadratic)
+ aNbNodes[2] = (aVec[SMDSEntity_Node]-1)/2 + 2;
+ else
+ aNbNodes[2] = aVec[SMDSEntity_Node] + 2;
+ aNbNodes[3] = aNbNodes[1];
+ aNbNodes.resize(5);
+ nbSides = 4;
+ }
+ }
+ }
+ if (nbEdgesInWire.front() == 4) { // exactly 4 edges
+ for (; edgeIt != edges.end(); edgeIt++) {
+ SMESH_subMesh * sm = aMesh.GetSubMesh(*edgeIt);
+ MapShapeNbElemsItr anIt = aResMap.find(sm);
+ if (anIt==aResMap.end()) {
+ return false;
+ }
+ std::vector<int> aVec = (*anIt).second;
+ if (IsQuadratic)
+ aNbNodes[nbSides] = (aVec[SMDSEntity_Node]-1)/2 + 2;
+ else
+ aNbNodes[nbSides] = aVec[SMDSEntity_Node] + 2;
+ nbSides++;
+ }
+ }
+ else if (nbEdgesInWire.front() > 4) { // more than 4 edges - try to unite some
+ list< TopoDS_Edge > sideEdges;
+ while (!edges.empty()) {
+ sideEdges.clear();
+ sideEdges.splice(sideEdges.end(), edges, edges.begin()); // edges.front() -> sideEdges.end()
+ bool sameSide = true;
+ while (!edges.empty() && sameSide) {
+ sameSide = SMESH_Algo::IsContinuous(sideEdges.back(), edges.front());
+ if (sameSide)
+ sideEdges.splice(sideEdges.end(), edges, edges.begin());
+ }
+ if (nbSides == 0) { // go backward from the first edge
+ sameSide = true;
+ while (!edges.empty() && sameSide) {
+ sameSide = SMESH_Algo::IsContinuous(sideEdges.front(), edges.back());
+ if (sameSide)
+ sideEdges.splice(sideEdges.begin(), edges, --edges.end());
+ }
+ }
+ list<TopoDS_Edge>::iterator ite = sideEdges.begin();
+ aNbNodes[nbSides] = 1;
+ for (; ite!=sideEdges.end(); ite++) {
+ SMESH_subMesh * sm = aMesh.GetSubMesh(*ite);
+ MapShapeNbElemsItr anIt = aResMap.find(sm);
+ if (anIt==aResMap.end()) {
+ return false;
+ }
+ std::vector<int> aVec = (*anIt).second;
+ if (IsQuadratic)
+ aNbNodes[nbSides] += (aVec[SMDSEntity_Node]-1)/2 + 1;
+ else
+ aNbNodes[nbSides] += aVec[SMDSEntity_Node] + 1;
+ }
+ ++nbSides;
+ }
+ // issue 20222. Try to unite only edges shared by two same faces
+ if (nbSides < 4) {
+ nbSides = 0;
+ SMESH_Block::GetOrderedEdges (F, V, edges, nbEdgesInWire);
+ while (!edges.empty()) {
+ sideEdges.clear();
+ sideEdges.splice(sideEdges.end(), edges, edges.begin());
+ bool sameSide = true;
+ while (!edges.empty() && sameSide) {
+ sameSide =
+ SMESH_Algo::IsContinuous(sideEdges.back(), edges.front()) &&
+ twoEdgesMeatAtVertex(sideEdges.back(), edges.front(), aMesh);
+ if (sameSide)
+ sideEdges.splice(sideEdges.end(), edges, edges.begin());
+ }
+ if (nbSides == 0) { // go backward from the first edge
+ sameSide = true;
+ while (!edges.empty() && sameSide) {
+ sameSide =
+ SMESH_Algo::IsContinuous(sideEdges.front(), edges.back()) &&
+ twoEdgesMeatAtVertex(sideEdges.front(), edges.back(), aMesh);
+ if (sameSide)
+ sideEdges.splice(sideEdges.begin(), edges, --edges.end());
+ }
+ }
+ list<TopoDS_Edge>::iterator ite = sideEdges.begin();
+ aNbNodes[nbSides] = 1;
+ for (; ite!=sideEdges.end(); ite++) {
+ SMESH_subMesh * sm = aMesh.GetSubMesh(*ite);
+ MapShapeNbElemsItr anIt = aResMap.find(sm);
+ if (anIt==aResMap.end()) {
+ return false;
+ }
+ std::vector<int> aVec = (*anIt).second;
+ if (IsQuadratic)
+ aNbNodes[nbSides] += (aVec[SMDSEntity_Node]-1)/2 + 1;
+ else
+ aNbNodes[nbSides] += aVec[SMDSEntity_Node] + 1;
+ }
+ ++nbSides;
+ }
+ }
+ }
+ if (nbSides != 4) {
+ if (!nbSides)
+ nbSides = nbEdgesInWire.front();
+ error(COMPERR_BAD_SHAPE, TComm("Face must have 4 sides but not ") << nbSides);
+ return false;
+ }
+
+ return true;
+}
+
+
+//=============================================================================
+/*!
+ * CheckAnd2Dcompute
+ */
+//=============================================================================
+
+FaceQuadStruct *StdMeshers_Quadrangle_2D::CheckAnd2Dcompute
+ (SMESH_Mesh & aMesh,
+ const TopoDS_Shape & aShape,
+ const bool CreateQuadratic) //throw(SALOME_Exception)
+{
+ _quadraticMesh = CreateQuadratic;
- SetNormalizedGrid(aMesh, F, quad);
+ FaceQuadStruct *quad = CheckNbEdges(aMesh, aShape);
+
+ if (!quad) return 0;
+
+ // set normalized grid on unit square in parametric domain
+ bool stat = SetNormalizedGrid(aMesh, aShape, quad);
+ if (!stat) {
+ if (quad) delete quad;
+ quad = 0;
+ }
return quad;
}
*/
//=============================================================================
-void StdMeshers_Quadrangle_2D::QuadDelete (FaceQuadStruct * quad)
+faceQuadStruct::~faceQuadStruct()
{
- //MESSAGE("StdMeshers_Quadrangle_2D::QuadDelete");
- if (quad)
+ for (int i = 0; i < side.size(); i++) {
+ if (side[i]) delete side[i];
+ }
+ if (uv_grid) delete [] uv_grid;
+}
+
+namespace {
+ inline const vector<UVPtStruct>& GetUVPtStructIn(FaceQuadStruct* quad, int i, int nbSeg)
{
- for (int i = 0; i < 4; i++)
- {
- if (quad->uv_edges[i])
- delete [] quad->uv_edges[i];
- quad->edge[i].Nullify();
- }
- if (quad->uv_grid)
- delete [] quad->uv_grid;
- delete quad;
+ bool isXConst = (i == BOTTOM_SIDE || i == TOP_SIDE);
+ double constValue = (i == BOTTOM_SIDE || i == LEFT_SIDE) ? 0 : 1;
+ return
+ quad->isEdgeOut[i] ?
+ quad->side[i]->SimulateUVPtStruct(nbSeg,isXConst,constValue) :
+ quad->side[i]->GetUVPtStruct(isXConst,constValue);
+ }
+ inline gp_UV CalcUV(double x, double y,
+ const gp_UV& a0,const gp_UV& a1,const gp_UV& a2,const gp_UV& a3,
+ const gp_UV& p0,const gp_UV& p1,const gp_UV& p2,const gp_UV& p3)
+ {
+ return
+ ((1 - y) * p0 + x * p1 + y * p2 + (1 - x) * p3 ) -
+ ((1 - x) * (1 - y) * a0 + x * (1 - y) * a1 + x * y * a2 + (1 - x) * y * a3);
}
}
*/
//=============================================================================
-void StdMeshers_Quadrangle_2D::SetNormalizedGrid (SMESH_Mesh & aMesh,
+bool StdMeshers_Quadrangle_2D::SetNormalizedGrid (SMESH_Mesh & aMesh,
const TopoDS_Shape& aShape,
- FaceQuadStruct* quad) throw (SALOME_Exception)
+ FaceQuadStruct* & quad) //throw (SALOME_Exception)
{
- Unexpect aCatch(SalomeException);
- // Algorithme décrit dans "Génération automatique de maillages"
- // P.L. GEORGE, MASSON, § 6.4.1 p. 84-85
- // traitement dans le domaine paramétrique 2d u,v
- // transport - projection sur le carré unité
+ // Algorithme décrit dans "Génération automatique de maillages"
+ // P.L. GEORGE, MASSON, § 6.4.1 p. 84-85
+ // traitement dans le domaine paramétrique 2d u,v
+ // transport - projection sur le carré unité
// MESSAGE("StdMeshers_Quadrangle_2D::SetNormalizedGrid");
- const TopoDS_Face& F = TopoDS::Face(aShape);
+// const TopoDS_Face& F = TopoDS::Face(aShape);
// 1 --- find orientation of the 4 edges, by test on extrema
// =down
//
- Handle(Geom2d_Curve) c2d[4];
- gp_Pnt2d pf[4];
- gp_Pnt2d pl[4];
- for (int i = 0; i < 4; i++)
- {
- c2d[i] = BRep_Tool::CurveOnSurface(quad->edge[i], F,
- quad->first[i], quad->last[i]);
- pf[i] = c2d[i]->Value(quad->first[i]);
- pl[i] = c2d[i]->Value(quad->last[i]);
- quad->isEdgeForward[i] = false;
- }
-
- double l0f1 = pl[0].SquareDistance(pf[1]);
- double l0l1 = pl[0].SquareDistance(pl[1]);
- double f0f1 = pf[0].SquareDistance(pf[1]);
- double f0l1 = pf[0].SquareDistance(pl[1]);
- if ( Min( l0f1, l0l1 ) < Min ( f0f1, f0l1 ))
- {
- quad->isEdgeForward[0] = true;
- } else {
- double tmp = quad->first[0];
- quad->first[0] = quad->last[0];
- quad->last[0] = tmp;
- pf[0] = c2d[0]->Value(quad->first[0]);
- pl[0] = c2d[0]->Value(quad->last[0]);
- }
- for (int i = 1; i < 4; i++)
- {
- l0l1 = pl[i - 1].SquareDistance(pl[i]);
- l0f1 = pl[i - 1].SquareDistance(pf[i]);
- quad->isEdgeForward[i] = ( l0f1 < l0l1 );
- if (!quad->isEdgeForward[i])
- {
- double tmp = quad->first[i];
- quad->first[i] = quad->last[i];
- quad->last[i] = tmp;
- pf[i] = c2d[i]->Value(quad->first[i]);
- pl[i] = c2d[i]->Value(quad->last[i]);
- }
- }
-
- // 2 --- load 2d edge points (u,v) with orientation and value on unit square
-
- bool loadOk = true;
- for (int i = 0; i < 2; i++)
- {
- quad->uv_edges[i] = LoadEdgePoints(aMesh, F, quad->edge[i],
- quad->first[i], quad->last[i]);
- if (!quad->uv_edges[i]) loadOk = false;
- }
-
- for (int i = 2; i < 4; i++)
- {
- quad->uv_edges[i] = LoadEdgePoints(aMesh, F, quad->edge[i],
- quad->last[i], quad->first[i]);
- if (!quad->uv_edges[i]) loadOk = false;
- }
-
- if (!loadOk)
- {
- INFOS("StdMeshers_Quadrangle_2D::SetNormalizedGrid - LoadEdgePoints failed");
- QuadDelete( quad );
- quad = 0;
- return;
- }
// 3 --- 2D normalized values on unit square [0..1][0..1]
- int nbhoriz = Min(quad->nbPts[0], quad->nbPts[2]);
- int nbvertic = Min(quad->nbPts[1], quad->nbPts[3]);
+ int nbhoriz = Min(quad->side[0]->NbPoints(), quad->side[2]->NbPoints());
+ int nbvertic = Min(quad->side[1]->NbPoints(), quad->side[3]->NbPoints());
+
+ quad->isEdgeOut[0] = (quad->side[0]->NbPoints() > quad->side[2]->NbPoints());
+ quad->isEdgeOut[1] = (quad->side[1]->NbPoints() > quad->side[3]->NbPoints());
+ quad->isEdgeOut[2] = (quad->side[2]->NbPoints() > quad->side[0]->NbPoints());
+ quad->isEdgeOut[3] = (quad->side[3]->NbPoints() > quad->side[1]->NbPoints());
- quad->isEdgeOut[0] = (quad->nbPts[0] > quad->nbPts[2]);
- quad->isEdgeOut[1] = (quad->nbPts[1] > quad->nbPts[3]);
- quad->isEdgeOut[2] = (quad->nbPts[2] > quad->nbPts[0]);
- quad->isEdgeOut[3] = (quad->nbPts[3] > quad->nbPts[1]);
+ UVPtStruct *uv_grid = quad->uv_grid = new UVPtStruct[nbvertic * nbhoriz];
- quad->uv_grid = new UVPtStruct[nbvertic * nbhoriz];
+ const vector<UVPtStruct>& uv_e0 = GetUVPtStructIn(quad, 0, nbhoriz - 1);
+ const vector<UVPtStruct>& uv_e1 = GetUVPtStructIn(quad, 1, nbvertic - 1);
+ const vector<UVPtStruct>& uv_e2 = GetUVPtStructIn(quad, 2, nbhoriz - 1);
+ const vector<UVPtStruct>& uv_e3 = GetUVPtStructIn(quad, 3, nbvertic - 1);
- UVPtStruct *uv_grid = quad->uv_grid;
- UVPtStruct *uv_e0 = quad->uv_edges[0];
- UVPtStruct *uv_e1 = quad->uv_edges[1];
- UVPtStruct *uv_e2 = quad->uv_edges[2];
- UVPtStruct *uv_e3 = quad->uv_edges[3];
+ if (uv_e0.empty() || uv_e1.empty() || uv_e2.empty() || uv_e3.empty())
+ //return error("Can't find nodes on sides");
+ return error(COMPERR_BAD_INPUT_MESH);
// nodes Id on "in" edges
if (! quad->isEdgeOut[0]) {
}
}
- // falsificate "out" edges
- if (quad->isEdgeOut[0]) // down
- uv_e0 = MakeEdgePoints
- (aMesh, F, quad->edge[0], quad->first[0], quad->last[0], nbhoriz - 1);
- else if (quad->isEdgeOut[2]) // up
- uv_e2 = MakeEdgePoints
- (aMesh, F, quad->edge[2], quad->last[2], quad->first[2], nbhoriz - 1);
-
- if (quad->isEdgeOut[1]) // right
- uv_e1 = MakeEdgePoints
- (aMesh, F, quad->edge[1], quad->first[1], quad->last[1], nbvertic - 1);
- else if (quad->isEdgeOut[3]) // left
- uv_e3 = MakeEdgePoints
- (aMesh, F, quad->edge[3], quad->last[3], quad->first[3], nbvertic - 1);
-
// normalized 2d values on grid
- for (int i = 0; i < nbhoriz; i++)
- {
- for (int j = 0; j < nbvertic; j++)
- {
+ for (int i = 0; i < nbhoriz; i++) {
+ for (int j = 0; j < nbvertic; j++) {
int ij = j * nbhoriz + i;
// --- droite i cste : x = x0 + y(x1-x0)
- double x0 = uv_e0[i].normParam; // bas - sud
- double x1 = uv_e2[i].normParam; // haut - nord
+ double x0 = uv_e0[i].normParam; // bas - sud
+ double x1 = uv_e2[i].normParam; // haut - nord
// --- droite j cste : y = y0 + x(y1-y0)
- double y0 = uv_e3[j].normParam; // gauche-ouest
- double y1 = uv_e1[j].normParam; // droite - est
+ double y0 = uv_e3[j].normParam; // gauche-ouest
+ double y1 = uv_e1[j].normParam; // droite - est
// --- intersection : x=x0+(y0+x(y1-y0))(x1-x0)
double x = (x0 + y0 * (x1 - x0)) / (1 - (y1 - y0) * (x1 - x0));
double y = y0 + x * (y1 - y0);
}
// 4 --- projection on 2d domain (u,v)
- gp_Pnt2d a0 = pf[0];
- gp_Pnt2d a1 = pf[1];
- gp_Pnt2d a2 = pf[2];
- gp_Pnt2d a3 = pf[3];
+ gp_UV a0(uv_e0.front().u, uv_e0.front().v);
+ gp_UV a1(uv_e0.back().u, uv_e0.back().v);
+ gp_UV a2(uv_e2.back().u, uv_e2.back().v);
+ gp_UV a3(uv_e2.front().u, uv_e2.front().v);
- for (int i = 0; i < nbhoriz; i++)
- {
- for (int j = 0; j < nbvertic; j++)
- {
+ for (int i = 0; i < nbhoriz; i++) {
+ for (int j = 0; j < nbvertic; j++) {
int ij = j * nbhoriz + i;
double x = uv_grid[ij].x;
double y = uv_grid[ij].y;
- double param_0 = uv_e0[0].param + x * (uv_e0[nbhoriz - 1].param - uv_e0[0].param); // sud
- double param_2 = uv_e2[0].param + x * (uv_e2[nbhoriz - 1].param - uv_e2[0].param); // nord
- double param_1 = uv_e1[0].param + y * (uv_e1[nbvertic - 1].param - uv_e1[0].param); // est
- double param_3 = uv_e3[0].param + y * (uv_e3[nbvertic - 1].param - uv_e3[0].param); // ouest
+ double param_0 = uv_e0[0].normParam + x * (uv_e0.back().normParam - uv_e0[0].normParam); // sud
+ double param_2 = uv_e2[0].normParam + x * (uv_e2.back().normParam - uv_e2[0].normParam); // nord
+ double param_1 = uv_e1[0].normParam + y * (uv_e1.back().normParam - uv_e1[0].normParam); // est
+ double param_3 = uv_e3[0].normParam + y * (uv_e3.back().normParam - uv_e3[0].normParam); // ouest
//MESSAGE("params "<<param_0<<" "<<param_1<<" "<<param_2<<" "<<param_3);
- gp_Pnt2d p0 = c2d[0]->Value(param_0);
- gp_Pnt2d p1 = c2d[1]->Value(param_1);
- gp_Pnt2d p2 = c2d[2]->Value(param_2);
- gp_Pnt2d p3 = c2d[3]->Value(param_3);
-
- double u = (1 - y) * p0.X() + x * p1.X() + y * p2.X() + (1 - x) * p3.X();
- double v = (1 - y) * p0.Y() + x * p1.Y() + y * p2.Y() + (1 - x) * p3.Y();
+ gp_UV p0 = quad->side[0]->Value2d(param_0).XY();
+ gp_UV p1 = quad->side[1]->Value2d(param_1).XY();
+ gp_UV p2 = quad->side[2]->Value2d(param_2).XY();
+ gp_UV p3 = quad->side[3]->Value2d(param_3).XY();
- u -= (1 - x) * (1 - y) * a0.X() + x * (1 - y) * a1.X() +
- x * y * a2.X() + (1 - x) * y * a3.X();
- v -= (1 - x) * (1 - y) * a0.Y() + x * (1 - y) * a1.Y() +
- x * y * a2.Y() + (1 - x) * y * a3.Y();
+ gp_UV uv = CalcUV(x,y, a0,a1,a2,a3, p0,p1,p2,p3);
- uv_grid[ij].u = u;
- uv_grid[ij].v = v;
+ uv_grid[ij].u = uv.X();
+ uv_grid[ij].v = uv.Y();
}
}
+ return true;
}
-//=============================================================================
-/*!
- * LoadEdgePoints
- */
-//=============================================================================
-UVPtStruct* StdMeshers_Quadrangle_2D::LoadEdgePoints (SMESH_Mesh & aMesh,
- const TopoDS_Face& F,
- const TopoDS_Edge& E,
- double first, double last)
-// bool isForward)
+//=======================================================================
+//function : ShiftQuad
+//purpose : auxilary function for ComputeQuadPref
+//=======================================================================
+
+static void ShiftQuad(FaceQuadStruct* quad, const int num, bool)
{
- //MESSAGE("StdMeshers_Quadrangle_2D::LoadEdgePoints");
+ StdMeshers_FaceSide* side[4] = { quad->side[0], quad->side[1], quad->side[2], quad->side[3] };
+ for (int i = BOTTOM_SIDE; i < NB_SIDES; ++i) {
+ int id = (i + num) % NB_SIDES;
+ bool wasForward = (i < TOP_SIDE);
+ bool newForward = (id < TOP_SIDE);
+ if (wasForward != newForward)
+ side[ i ]->Reverse();
+ quad->side[ id ] = side[ i ];
+ }
+}
- // --- IDNodes of first and last Vertex
+//=======================================================================
+//function : CalcUV
+//purpose : auxilary function for ComputeQuadPref
+//=======================================================================
- TopoDS_Vertex VFirst, VLast;
- TopExp::Vertices(E, VFirst, VLast); // corresponds to f and l
+static gp_UV CalcUV(double x0, double x1, double y0, double y1,
+ FaceQuadStruct* quad,
+ const gp_UV& a0, const gp_UV& a1,
+ const gp_UV& a2, const gp_UV& a3)
+{
+ const vector<UVPtStruct>& uv_eb = quad->side[0]->GetUVPtStruct(true,0);
+ const vector<UVPtStruct>& uv_er = quad->side[1]->GetUVPtStruct(false,1);
+ const vector<UVPtStruct>& uv_et = quad->side[2]->GetUVPtStruct(true,1);
+ const vector<UVPtStruct>& uv_el = quad->side[3]->GetUVPtStruct(false,0);
- ASSERT(!VFirst.IsNull());
- SMDS_NodeIteratorPtr lid = aMesh.GetSubMesh(VFirst)->GetSubMeshDS()->GetNodes();
- if (!lid->more())
- {
- MESSAGE ( "NO NODE BUILT ON VERTEX" );
- return 0;
- }
- const SMDS_MeshNode* idFirst = lid->next();
+ double x = (x0 + y0 * (x1 - x0)) / (1 - (y1 - y0) * (x1 - x0));
+ double y = y0 + x * (y1 - y0);
- ASSERT(!VLast.IsNull());
- lid = aMesh.GetSubMesh(VLast)->GetSubMeshDS()->GetNodes();
- if (!lid->more())
- {
- MESSAGE ( "NO NODE BUILT ON VERTEX" );
- return 0;
- }
- const SMDS_MeshNode* idLast = lid->next();
+ double param_b = uv_eb[0].normParam + x * (uv_eb.back().normParam - uv_eb[0].normParam);
+ double param_t = uv_et[0].normParam + x * (uv_et.back().normParam - uv_et[0].normParam);
+ double param_r = uv_er[0].normParam + y * (uv_er.back().normParam - uv_er[0].normParam);
+ double param_l = uv_el[0].normParam + y * (uv_el.back().normParam - uv_el[0].normParam);
- // --- edge internal IDNodes (relies on good order storage, not checked)
+ gp_UV p0 = quad->side[BOTTOM_SIDE]->Value2d(param_b).XY();
+ gp_UV p1 = quad->side[RIGHT_SIDE ]->Value2d(param_r).XY();
+ gp_UV p2 = quad->side[TOP_SIDE ]->Value2d(param_t).XY();
+ gp_UV p3 = quad->side[LEFT_SIDE ]->Value2d(param_l).XY();
- map<double, const SMDS_MeshNode *> params;
- SMDS_NodeIteratorPtr ite = aMesh.GetSubMesh(E)->GetSubMeshDS()->GetNodes();
+ gp_UV uv = CalcUV(x,y, a0,a1,a2,a3, p0,p1,p2,p3);
- while(ite->more())
- {
- const SMDS_MeshNode* node = ite->next();
- const SMDS_EdgePosition* epos =
- static_cast<const SMDS_EdgePosition*>(node->GetPosition().get());
- double param = epos->GetUParameter();
- params[param] = node;
- }
+ return uv;
+}
- int nbPoints = aMesh.GetSubMesh(E)->GetSubMeshDS()->NbNodes();
- if (nbPoints != params.size())
- {
- MESSAGE( "BAD NODE ON EDGE POSITIONS" );
- return 0;
- }
- UVPtStruct* uvslf = new UVPtStruct[nbPoints + 2];
+//=======================================================================
+//function : CalcUV2
+//purpose : auxilary function for ComputeQuadPref
+//=======================================================================
- double f, l;
- Handle(Geom2d_Curve) C2d = BRep_Tool::CurveOnSurface(E, F, f, l);
+static gp_UV CalcUV2(double x, double y,
+ FaceQuadStruct* quad,
+ const gp_UV& a0, const gp_UV& a1,
+ const gp_UV& a2, const gp_UV& a3)
+{
+ gp_UV p0 = quad->side[BOTTOM_SIDE]->Value2d(x).XY();
+ gp_UV p1 = quad->side[RIGHT_SIDE ]->Value2d(y).XY();
+ gp_UV p2 = quad->side[TOP_SIDE ]->Value2d(x).XY();
+ gp_UV p3 = quad->side[LEFT_SIDE ]->Value2d(y).XY();
- bool isForward = (((l - f) * (last - first)) > 0);
- double paramin = 0;
- double paramax = 0;
- if (isForward)
- {
- paramin = f;
- paramax = l;
- gp_Pnt2d p = C2d->Value(f); // first point = Vertex Forward
- uvslf[0].x = p.X();
- uvslf[0].y = p.Y();
- uvslf[0].param = f;
- uvslf[0].node = idFirst;
- //MESSAGE("__ f "<<f<<" "<<uvslf[0].x <<" "<<uvslf[0].y);
- map < double, const SMDS_MeshNode* >::iterator itp = params.begin();
- for (int i = 1; i <= nbPoints; i++) // nbPoints internal
- {
- double param = (*itp).first;
- gp_Pnt2d p = C2d->Value(param);
- uvslf[i].x = p.X();
- uvslf[i].y = p.Y();
- uvslf[i].param = param;
- uvslf[i].node = (*itp).second;
- //MESSAGE("__ "<<i<<" "<<param<<" "<<uvslf[i].x <<" "<<uvslf[i].y);
- itp++;
- }
- p = C2d->Value(l); // last point = Vertex Reversed
- uvslf[nbPoints + 1].x = p.X();
- uvslf[nbPoints + 1].y = p.Y();
- uvslf[nbPoints + 1].param = l;
- uvslf[nbPoints + 1].node = idLast;
- //MESSAGE("__ l "<<l<<" "<<uvslf[nbPoints+1].x <<" "<<uvslf[nbPoints+1].y);
- } else
- {
- paramin = l;
- paramax = f;
- gp_Pnt2d p = C2d->Value(l); // first point = Vertex Reversed
- uvslf[0].x = p.X();
- uvslf[0].y = p.Y();
- uvslf[0].param = l;
- uvslf[0].node = idLast;
- //MESSAGE("__ l "<<l<<" "<<uvslf[0].x <<" "<<uvslf[0].y);
- map < double, const SMDS_MeshNode* >::reverse_iterator itp = params.rbegin();
-
- for (int j = nbPoints; j >= 1; j--) // nbPoints internal
- {
- double param = (*itp).first;
- int i = nbPoints + 1 - j;
- gp_Pnt2d p = C2d->Value(param);
- uvslf[i].x = p.X();
- uvslf[i].y = p.Y();
- uvslf[i].param = param;
- uvslf[i].node = (*itp).second;
- //MESSAGE("__ "<<i<<" "<<param<<" "<<uvslf[i].x <<" "<<uvslf[i].y);
- itp++;
- }
- p = C2d->Value(f); // last point = Vertex Forward
- uvslf[nbPoints + 1].x = p.X();
- uvslf[nbPoints + 1].y = p.Y();
- uvslf[nbPoints + 1].param = f;
- uvslf[nbPoints + 1].node = idFirst;
- //MESSAGE("__ f "<<f<<" "<<uvslf[nbPoints+1].x <<" "<<uvslf[nbPoints+1].y);
- }
-
- ASSERT(paramin != paramax);
- for (int i = 0; i < nbPoints + 2; i++)
- {
- uvslf[i].normParam = (uvslf[i].param - paramin) / (paramax - paramin);
- }
+ gp_UV uv = CalcUV(x,y, a0,a1,a2,a3, p0,p1,p2,p3);
- return uvslf;
+ return uv;
}
-//=============================================================================
+
+//=======================================================================
/*!
- * MakeEdgePoints
+ * Create only quandrangle faces
*/
-//=============================================================================
-UVPtStruct* StdMeshers_Quadrangle_2D::MakeEdgePoints (SMESH_Mesh & aMesh,
- const TopoDS_Face& F,
- const TopoDS_Edge& E,
- double first, double last,
- int nb_segm)
+//=======================================================================
+
+bool StdMeshers_Quadrangle_2D::ComputeQuadPref (SMESH_Mesh & aMesh,
+ const TopoDS_Shape& aShape,
+ FaceQuadStruct* quad)
{
-// MESSAGE("StdMeshers_Quadrangle_2D::MakeEdgePoints");
-
- UVPtStruct* uvslf = new UVPtStruct[nb_segm + 1];
- list<double> params;
-
- // --- edge internal points
- double fi, li;
- Handle(Geom_Curve) Curve = BRep_Tool::Curve(E, fi, li);
- if (!Curve.IsNull()) {
- try {
- GeomAdaptor_Curve C3d (Curve);
- double length = EdgeLength(E);
- double eltSize = length / nb_segm;
- GCPnts_UniformAbscissa Discret (C3d, eltSize, fi, li);
- if (!Discret.IsDone()) return false;
- int NbPoints = Discret.NbPoints();
- for (int i = 1; i <= NbPoints; i++) {
- double param = Discret.Parameter(i);
- params.push_back(param);
- }
- }
- catch (Standard_Failure) {
- return 0;
+ // Auxilary key in order to keep old variant
+ // of meshing after implementation new variant
+ // for bug 0016220 from Mantis.
+ bool OldVersion = false;
+ if (myQuadType == QUAD_QUADRANGLE_PREF_REVERSED)
+ OldVersion = true;
+
+ SMESHDS_Mesh * meshDS = aMesh.GetMeshDS();
+ const TopoDS_Face& F = TopoDS::Face(aShape);
+ Handle(Geom_Surface) S = BRep_Tool::Surface(F);
+ bool WisF = true;
+ int i,j,geomFaceID = meshDS->ShapeToIndex(F);
+
+ int nb = quad->side[0]->NbPoints();
+ int nr = quad->side[1]->NbPoints();
+ int nt = quad->side[2]->NbPoints();
+ int nl = quad->side[3]->NbPoints();
+ int dh = abs(nb-nt);
+ int dv = abs(nr-nl);
+
+ if (dh>=dv) {
+ if (nt>nb) {
+ // it is a base case => not shift quad but me be replacement is need
+ ShiftQuad(quad,0,WisF);
+ }
+ else {
+ // we have to shift quad on 2
+ ShiftQuad(quad,2,WisF);
}
}
- else
- {
- // Edge is a degenerated Edge
- BRep_Tool::Range(E, fi, li);
- double du = (li - fi) / nb_segm;
- for (int i = 1; i <= nb_segm + 1; i++)
- {
- double param = fi + (i - 1) * du;
- params.push_back(param);
+ else {
+ if (nr>nl) {
+ // we have to shift quad on 1
+ ShiftQuad(quad,1,WisF);
}
+ else {
+ // we have to shift quad on 3
+ ShiftQuad(quad,3,WisF);
+ }
+ }
+
+ nb = quad->side[0]->NbPoints();
+ nr = quad->side[1]->NbPoints();
+ nt = quad->side[2]->NbPoints();
+ nl = quad->side[3]->NbPoints();
+ dh = abs(nb-nt);
+ dv = abs(nr-nl);
+ int nbh = Max(nb,nt);
+ int nbv = Max(nr,nl);
+ int addh = 0;
+ int addv = 0;
+
+ // ----------- Old version ---------------
+ // orientation of face and 3 main domain for future faces
+ // 0 top 1
+ // 1------------1
+ // | | | |
+ // | | | |
+ // | L | | R |
+ // left | | | | rigth
+ // | / \ |
+ // | / C \ |
+ // |/ \|
+ // 0------------0
+ // 0 bottom 1
+
+ // ----------- New version ---------------
+ // orientation of face and 3 main domain for future faces
+ // 0 top 1
+ // 1------------1
+ // | |____| |
+ // | / \ |
+ // | / C \ |
+ // left |/________\| rigth
+ // | |
+ // | |
+ // | |
+ // 0------------0
+ // 0 bottom 1
+
+ if (dh>dv) {
+ addv = (dh-dv)/2;
+ nbv = nbv + addv;
+ }
+ else { // dv>=dh
+ addh = (dv-dh)/2;
+ nbh = nbh + addh;
}
- double f, l;
- Handle(Geom2d_Curve) C2d = BRep_Tool::CurveOnSurface(E, F, f, l);
- ASSERT(f != l);
+ const vector<UVPtStruct>& uv_eb = quad->side[0]->GetUVPtStruct(true,0);
+ const vector<UVPtStruct>& uv_er = quad->side[1]->GetUVPtStruct(false,1);
+ const vector<UVPtStruct>& uv_et = quad->side[2]->GetUVPtStruct(true,1);
+ const vector<UVPtStruct>& uv_el = quad->side[3]->GetUVPtStruct(false,0);
+
+ if (uv_eb.size() != nb || uv_er.size() != nr || uv_et.size() != nt || uv_el.size() != nl)
+ return error(COMPERR_BAD_INPUT_MESH);
+
+ // arrays for normalized params
+ //cout<<"Dump B:"<<endl;
+ TColStd_SequenceOfReal npb, npr, npt, npl;
+ for (i=0; i<nb; i++) {
+ npb.Append(uv_eb[i].normParam);
+ //cout<<"i="<<i<<" par="<<uv_eb[i].normParam<<" npar="<<uv_eb[i].normParam;
+ //const SMDS_MeshNode* N = uv_eb[i].node;
+ //cout<<" node("<<N->X()<<","<<N->Y()<<","<<N->Z()<<")"<<endl;
+ }
+ for (i=0; i<nr; i++) {
+ npr.Append(uv_er[i].normParam);
+ }
+ for (i=0; i<nt; i++) {
+ npt.Append(uv_et[i].normParam);
+ }
+ for (i=0; i<nl; i++) {
+ npl.Append(uv_el[i].normParam);
+ }
- bool isForward = (((l - f) * (last - first)) > 0);
- if (isForward) {
- list<double>::iterator itU = params.begin();
- for (int i = 0; i <= nb_segm; i++) // nbPoints internal
- {
- double param = *itU;
- gp_Pnt2d p = C2d->Value(param);
- uvslf[i].x = p.X();
- uvslf[i].y = p.Y();
- uvslf[i].param = param;
- uvslf[i].normParam = (param - f) / (l - f);
- itU++;
+ int dl,dr;
+ if (OldVersion) {
+ // add some params to right and left after the first param
+ // insert to right
+ dr = nbv - nr;
+ double dpr = (npr.Value(2) - npr.Value(1))/(dr+1);
+ for (i=1; i<=dr; i++) {
+ npr.InsertAfter(1,npr.Value(2)-dpr);
}
- } else {
- list<double>::reverse_iterator itU = params.rbegin();
- for (int j = nb_segm; j >= 0; j--) // nbPoints internal
- {
- double param = *itU;
- int i = nb_segm - j;
- gp_Pnt2d p = C2d->Value(param);
- uvslf[i].x = p.X();
- uvslf[i].y = p.Y();
- uvslf[i].param = param;
- uvslf[i].normParam = (param - l) / (f - l);
- itU++;
+ // insert to left
+ dl = nbv - nl;
+ dpr = (npl.Value(2) - npl.Value(1))/(dl+1);
+ for (i=1; i<=dl; i++) {
+ npl.InsertAfter(1,npl.Value(2)-dpr);
+ }
+ }
+ //cout<<"npb:";
+ //for (i=1; i<=npb.Length(); i++) {
+ // cout<<" "<<npb.Value(i);
+ //}
+ //cout<<endl;
+
+ gp_XY a0(uv_eb.front().u, uv_eb.front().v);
+ gp_XY a1(uv_eb.back().u, uv_eb.back().v);
+ gp_XY a2(uv_et.back().u, uv_et.back().v);
+ gp_XY a3(uv_et.front().u, uv_et.front().v);
+ //cout<<" a0("<<a0.X()<<","<<a0.Y()<<")"<<" a1("<<a1.X()<<","<<a1.Y()<<")"
+ // <<" a2("<<a2.X()<<","<<a2.Y()<<")"<<" a3("<<a3.X()<<","<<a3.Y()<<")"<<endl;
+
+ int nnn = Min(nr,nl);
+ // auxilary sequence of XY for creation nodes
+ // in the bottom part of central domain
+ // Length of UVL and UVR must be == nbv-nnn
+ TColgp_SequenceOfXY UVL, UVR, UVT;
+
+ if (OldVersion) {
+ // step1: create faces for left domain
+ StdMeshers_Array2OfNode NodesL(1,dl+1,1,nl);
+ // add left nodes
+ for (j=1; j<=nl; j++)
+ NodesL.SetValue(1,j,uv_el[j-1].node);
+ if (dl>0) {
+ // add top nodes
+ for (i=1; i<=dl; i++)
+ NodesL.SetValue(i+1,nl,uv_et[i].node);
+ // create and add needed nodes
+ TColgp_SequenceOfXY UVtmp;
+ for (i=1; i<=dl; i++) {
+ double x0 = npt.Value(i+1);
+ double x1 = x0;
+ // diagonal node
+ double y0 = npl.Value(i+1);
+ double y1 = npr.Value(i+1);
+ gp_UV UV = CalcUV(x0, x1, y0, y1, quad, a0, a1, a2, a3);
+ gp_Pnt P = S->Value(UV.X(),UV.Y());
+ SMDS_MeshNode * N = meshDS->AddNode(P.X(), P.Y(), P.Z());
+ meshDS->SetNodeOnFace(N, geomFaceID, UV.X(), UV.Y());
+ NodesL.SetValue(i+1,1,N);
+ if (UVL.Length()<nbv-nnn) UVL.Append(UV);
+ // internal nodes
+ for (j=2; j<nl; j++) {
+ double y0 = npl.Value(dl+j);
+ double y1 = npr.Value(dl+j);
+ gp_UV UV = CalcUV(x0, x1, y0, y1, quad, a0, a1, a2, a3);
+ gp_Pnt P = S->Value(UV.X(),UV.Y());
+ SMDS_MeshNode* N = meshDS->AddNode(P.X(), P.Y(), P.Z());
+ meshDS->SetNodeOnFace(N, geomFaceID, UV.X(), UV.Y());
+ NodesL.SetValue(i+1,j,N);
+ if (i==dl) UVtmp.Append(UV);
+ }
+ }
+ for (i=1; i<=UVtmp.Length() && UVL.Length()<nbv-nnn; i++) {
+ UVL.Append(UVtmp.Value(i));
+ }
+ //cout<<"Dump NodesL:"<<endl;
+ //for (i=1; i<=dl+1; i++) {
+ // cout<<"i="<<i;
+ // for (j=1; j<=nl; j++) {
+ // cout<<" ("<<NodesL.Value(i,j)->X()<<","<<NodesL.Value(i,j)->Y()<<","<<NodesL.Value(i,j)->Z()<<")";
+ // }
+ // cout<<endl;
+ //}
+ // create faces
+ for (i=1; i<=dl; i++) {
+ for (j=1; j<nl; j++) {
+ if (WisF) {
+ SMDS_MeshFace* F =
+ myTool->AddFace(NodesL.Value(i,j), NodesL.Value(i+1,j),
+ NodesL.Value(i+1,j+1), NodesL.Value(i,j+1));
+ if (F) meshDS->SetMeshElementOnShape(F, geomFaceID);
+ }
+ else {
+ SMDS_MeshFace* F =
+ myTool->AddFace(NodesL.Value(i,j), NodesL.Value(i,j+1),
+ NodesL.Value(i+1,j+1), NodesL.Value(i+1,j));
+ if (F) meshDS->SetMeshElementOnShape(F, geomFaceID);
+ }
+ }
+ }
+ }
+ else {
+ // fill UVL using c2d
+ for (i=1; i<npl.Length() && UVL.Length()<nbv-nnn; i++) {
+ UVL.Append(gp_UV (uv_el[i].u, uv_el[i].v));
+ }
+ }
+
+ // step2: create faces for right domain
+ StdMeshers_Array2OfNode NodesR(1,dr+1,1,nr);
+ // add right nodes
+ for (j=1; j<=nr; j++)
+ NodesR.SetValue(1,j,uv_er[nr-j].node);
+ if (dr>0) {
+ // add top nodes
+ for (i=1; i<=dr; i++)
+ NodesR.SetValue(i+1,1,uv_et[nt-1-i].node);
+ // create and add needed nodes
+ TColgp_SequenceOfXY UVtmp;
+ for (i=1; i<=dr; i++) {
+ double x0 = npt.Value(nt-i);
+ double x1 = x0;
+ // diagonal node
+ double y0 = npl.Value(i+1);
+ double y1 = npr.Value(i+1);
+ gp_UV UV = CalcUV(x0, x1, y0, y1, quad, a0, a1, a2, a3);
+ gp_Pnt P = S->Value(UV.X(),UV.Y());
+ SMDS_MeshNode * N = meshDS->AddNode(P.X(), P.Y(), P.Z());
+ meshDS->SetNodeOnFace(N, geomFaceID, UV.X(), UV.Y());
+ NodesR.SetValue(i+1,nr,N);
+ if (UVR.Length()<nbv-nnn) UVR.Append(UV);
+ // internal nodes
+ for (j=2; j<nr; j++) {
+ double y0 = npl.Value(nbv-j+1);
+ double y1 = npr.Value(nbv-j+1);
+ gp_UV UV = CalcUV(x0, x1, y0, y1, quad, a0, a1, a2, a3);
+ gp_Pnt P = S->Value(UV.X(),UV.Y());
+ SMDS_MeshNode* N = meshDS->AddNode(P.X(), P.Y(), P.Z());
+ meshDS->SetNodeOnFace(N, geomFaceID, UV.X(), UV.Y());
+ NodesR.SetValue(i+1,j,N);
+ if (i==dr) UVtmp.Prepend(UV);
+ }
+ }
+ for (i=1; i<=UVtmp.Length() && UVR.Length()<nbv-nnn; i++) {
+ UVR.Append(UVtmp.Value(i));
+ }
+ // create faces
+ for (i=1; i<=dr; i++) {
+ for (j=1; j<nr; j++) {
+ if (WisF) {
+ SMDS_MeshFace* F =
+ myTool->AddFace(NodesR.Value(i,j), NodesR.Value(i+1,j),
+ NodesR.Value(i+1,j+1), NodesR.Value(i,j+1));
+ if (F) meshDS->SetMeshElementOnShape(F, geomFaceID);
+ }
+ else {
+ SMDS_MeshFace* F =
+ myTool->AddFace(NodesR.Value(i,j), NodesR.Value(i,j+1),
+ NodesR.Value(i+1,j+1), NodesR.Value(i+1,j));
+ if (F) meshDS->SetMeshElementOnShape(F, geomFaceID);
+ }
+ }
+ }
+ }
+ else {
+ // fill UVR using c2d
+ for (i=1; i<npr.Length() && UVR.Length()<nbv-nnn; i++) {
+ UVR.Append(gp_UV(uv_er[i].u, uv_er[i].v));
+ }
+ }
+
+ // step3: create faces for central domain
+ StdMeshers_Array2OfNode NodesC(1,nb,1,nbv);
+ // add first line using NodesL
+ for (i=1; i<=dl+1; i++)
+ NodesC.SetValue(1,i,NodesL(i,1));
+ for (i=2; i<=nl; i++)
+ NodesC.SetValue(1,dl+i,NodesL(dl+1,i));
+ // add last line using NodesR
+ for (i=1; i<=dr+1; i++)
+ NodesC.SetValue(nb,i,NodesR(i,nr));
+ for (i=1; i<nr; i++)
+ NodesC.SetValue(nb,dr+i+1,NodesR(dr+1,nr-i));
+ // add top nodes (last columns)
+ for (i=dl+2; i<nbh-dr; i++)
+ NodesC.SetValue(i-dl,nbv,uv_et[i-1].node);
+ // add bottom nodes (first columns)
+ for (i=2; i<nb; i++)
+ NodesC.SetValue(i,1,uv_eb[i-1].node);
+
+ // create and add needed nodes
+ // add linear layers
+ for (i=2; i<nb; i++) {
+ double x0 = npt.Value(dl+i);
+ double x1 = x0;
+ for (j=1; j<nnn; j++) {
+ double y0 = npl.Value(nbv-nnn+j);
+ double y1 = npr.Value(nbv-nnn+j);
+ gp_UV UV = CalcUV(x0, x1, y0, y1, quad, a0, a1, a2, a3);
+ gp_Pnt P = S->Value(UV.X(),UV.Y());
+ SMDS_MeshNode* N = meshDS->AddNode(P.X(), P.Y(), P.Z());
+ meshDS->SetNodeOnFace(N, geomFaceID, UV.X(), UV.Y());
+ NodesC.SetValue(i,nbv-nnn+j,N);
+ if ( j==1 )
+ UVT.Append( UV );
+ }
+ }
+ // add diagonal layers
+ //cout<<"UVL.Length()="<<UVL.Length()<<" UVR.Length()="<<UVR.Length()<<endl;
+ //cout<<"Dump UVL:"<<endl;
+ //for (i=1; i<=UVL.Length(); i++) {
+ // cout<<" ("<<UVL.Value(i).X()<<","<<UVL.Value(i).Y()<<")";
+ //}
+ //cout<<endl;
+ gp_UV A2 = UVR.Value(nbv-nnn);
+ gp_UV A3 = UVL.Value(nbv-nnn);
+ for (i=1; i<nbv-nnn; i++) {
+ gp_UV p1 = UVR.Value(i);
+ gp_UV p3 = UVL.Value(i);
+ double y = i / double(nbv-nnn);
+ for (j=2; j<nb; j++) {
+ double x = npb.Value(j);
+ gp_UV p0( uv_eb[j-1].u, uv_eb[j-1].v );
+ gp_UV p2 = UVT.Value( j-1 );
+ gp_UV UV = CalcUV(x, y, a0, a1, A2, A3, p0,p1,p2,p3 );
+ gp_Pnt P = S->Value(UV.X(),UV.Y());
+ SMDS_MeshNode* N = meshDS->AddNode(P.X(), P.Y(), P.Z());
+ meshDS->SetNodeOnFace(N, geomFaceID, UV.X(),UV.Y());
+ NodesC.SetValue(j,i+1,N);
+ }
+ }
+ // create faces
+ for (i=1; i<nb; i++) {
+ for (j=1; j<nbv; j++) {
+ if (WisF) {
+ SMDS_MeshFace* F =
+ myTool->AddFace(NodesC.Value(i,j), NodesC.Value(i+1,j),
+ NodesC.Value(i+1,j+1), NodesC.Value(i,j+1));
+ if (F) meshDS->SetMeshElementOnShape(F, geomFaceID);
+ }
+ else {
+ SMDS_MeshFace* F =
+ myTool->AddFace(NodesC.Value(i,j), NodesC.Value(i,j+1),
+ NodesC.Value(i+1,j+1), NodesC.Value(i+1,j));
+ if (F) meshDS->SetMeshElementOnShape(F, geomFaceID);
+ }
+ }
}
}
- return uvslf;
-}
+ else { // New version (!OldVersion)
+ // step1: create faces for bottom rectangle domain
+ StdMeshers_Array2OfNode NodesBRD(1,nb,1,nnn-1);
+ // fill UVL and UVR using c2d
+ for (j=0; j<nb; j++) {
+ NodesBRD.SetValue(j+1,1,uv_eb[j].node);
+ }
+ for (i=1; i<nnn-1; i++) {
+ NodesBRD.SetValue(1,i+1,uv_el[i].node);
+ NodesBRD.SetValue(nb,i+1,uv_er[i].node);
+ for (j=2; j<nb; j++) {
+ double x = npb.Value(j);
+ double y = (1-x) * npl.Value(i+1) + x * npr.Value(i+1);
+ gp_UV UV = CalcUV2(x, y, quad, a0, a1, a2, a3);
+ gp_Pnt P = S->Value(UV.X(),UV.Y());
+ SMDS_MeshNode* N = meshDS->AddNode(P.X(), P.Y(), P.Z());
+ meshDS->SetNodeOnFace(N, geomFaceID, UV.X(),UV.Y());
+ NodesBRD.SetValue(j,i+1,N);
+ }
+ }
+ for (j=1; j<nnn-1; j++) {
+ for (i=1; i<nb; i++) {
+ if (WisF) {
+ SMDS_MeshFace* F =
+ myTool->AddFace(NodesBRD.Value(i,j), NodesBRD.Value(i+1,j),
+ NodesBRD.Value(i+1,j+1), NodesBRD.Value(i,j+1));
+ if (F) meshDS->SetMeshElementOnShape(F, geomFaceID);
+ }
+ else {
+ SMDS_MeshFace* F =
+ myTool->AddFace(NodesBRD.Value(i,j), NodesBRD.Value(i,j+1),
+ NodesBRD.Value(i+1,j+1), NodesBRD.Value(i+1,j));
+ if (F) meshDS->SetMeshElementOnShape(F, geomFaceID);
+ }
+ }
+ }
+ int drl = abs(nr-nl);
+ // create faces for region C
+ StdMeshers_Array2OfNode NodesC(1,nb,1,drl+1+addv);
+ // add nodes from previous region
+ for (j=1; j<=nb; j++) {
+ NodesC.SetValue(j,1,NodesBRD.Value(j,nnn-1));
+ }
+ if ((drl+addv) > 0) {
+ int n1,n2;
+ if (nr>nl) {
+ n1 = 1;
+ n2 = drl + 1;
+ TColgp_SequenceOfXY UVtmp;
+ double drparam = npr.Value(nr) - npr.Value(nnn-1);
+ double dlparam = npl.Value(nnn) - npl.Value(nnn-1);
+ double y0,y1;
+ for (i=1; i<=drl; i++) {
+ // add existed nodes from right edge
+ NodesC.SetValue(nb,i+1,uv_er[nnn+i-2].node);
+ //double dtparam = npt.Value(i+1);
+ y1 = npr.Value(nnn+i-1); // param on right edge
+ double dpar = (y1 - npr.Value(nnn-1))/drparam;
+ y0 = npl.Value(nnn-1) + dpar*dlparam; // param on left edge
+ double dy = y1 - y0;
+ for (j=1; j<nb; j++) {
+ double x = npt.Value(i+1) + npb.Value(j)*(1-npt.Value(i+1));
+ double y = y0 + dy*x;
+ gp_UV UV = CalcUV2(x, y, quad, a0, a1, a2, a3);
+ gp_Pnt P = S->Value(UV.X(),UV.Y());
+ SMDS_MeshNode* N = meshDS->AddNode(P.X(), P.Y(), P.Z());
+ meshDS->SetNodeOnFace(N, geomFaceID, UV.X(), UV.Y());
+ NodesC.SetValue(j,i+1,N);
+ }
+ }
+ double dy0 = (1-y0)/(addv+1);
+ double dy1 = (1-y1)/(addv+1);
+ for (i=1; i<=addv; i++) {
+ double yy0 = y0 + dy0*i;
+ double yy1 = y1 + dy1*i;
+ double dyy = yy1 - yy0;
+ for (j=1; j<=nb; j++) {
+ double x = npt.Value(i+1+drl) +
+ npb.Value(j) * (npt.Value(nt-i) - npt.Value(i+1+drl));
+ double y = yy0 + dyy*x;
+ gp_UV UV = CalcUV2(x, y, quad, a0, a1, a2, a3);
+ gp_Pnt P = S->Value(UV.X(),UV.Y());
+ SMDS_MeshNode* N = meshDS->AddNode(P.X(), P.Y(), P.Z());
+ meshDS->SetNodeOnFace(N, geomFaceID, UV.X(), UV.Y());
+ NodesC.SetValue(j,i+drl+1,N);
+ }
+ }
+ }
+ else { // nr<nl
+ n2 = 1;
+ n1 = drl + 1;
+ TColgp_SequenceOfXY UVtmp;
+ double dlparam = npl.Value(nl) - npl.Value(nnn-1);
+ double drparam = npr.Value(nnn) - npr.Value(nnn-1);
+ double y0 = npl.Value(nnn-1);
+ double y1 = npr.Value(nnn-1);
+ for (i=1; i<=drl; i++) {
+ // add existed nodes from right edge
+ NodesC.SetValue(1,i+1,uv_el[nnn+i-2].node);
+ y0 = npl.Value(nnn+i-1); // param on left edge
+ double dpar = (y0 - npl.Value(nnn-1))/dlparam;
+ y1 = npr.Value(nnn-1) + dpar*drparam; // param on right edge
+ double dy = y1 - y0;
+ for (j=2; j<=nb; j++) {
+ double x = npb.Value(j)*npt.Value(nt-i);
+ double y = y0 + dy*x;
+ gp_UV UV = CalcUV2(x, y, quad, a0, a1, a2, a3);
+ gp_Pnt P = S->Value(UV.X(),UV.Y());
+ SMDS_MeshNode* N = meshDS->AddNode(P.X(), P.Y(), P.Z());
+ meshDS->SetNodeOnFace(N, geomFaceID, UV.X(), UV.Y());
+ NodesC.SetValue(j,i+1,N);
+ }
+ }
+ double dy0 = (1-y0)/(addv+1);
+ double dy1 = (1-y1)/(addv+1);
+ for (i=1; i<=addv; i++) {
+ double yy0 = y0 + dy0*i;
+ double yy1 = y1 + dy1*i;
+ double dyy = yy1 - yy0;
+ for (j=1; j<=nb; j++) {
+ double x = npt.Value(i+1) +
+ npb.Value(j) * (npt.Value(nt-i-drl) - npt.Value(i+1));
+ double y = yy0 + dyy*x;
+ gp_UV UV = CalcUV2(x, y, quad, a0, a1, a2, a3);
+ gp_Pnt P = S->Value(UV.X(),UV.Y());
+ SMDS_MeshNode* N = meshDS->AddNode(P.X(), P.Y(), P.Z());
+ meshDS->SetNodeOnFace(N, geomFaceID, UV.X(), UV.Y());
+ NodesC.SetValue(j,i+drl+1,N);
+ }
+ }
+ }
+ // create faces
+ for (j=1; j<=drl+addv; j++) {
+ for (i=1; i<nb; i++) {
+ if (WisF) {
+ SMDS_MeshFace* F =
+ myTool->AddFace(NodesC.Value(i,j), NodesC.Value(i+1,j),
+ NodesC.Value(i+1,j+1), NodesC.Value(i,j+1));
+ if (F) meshDS->SetMeshElementOnShape(F, geomFaceID);
+ }
+ else {
+ SMDS_MeshFace* F =
+ myTool->AddFace(NodesC.Value(i,j), NodesC.Value(i,j+1),
+ NodesC.Value(i+1,j+1), NodesC.Value(i+1,j));
+ if (F) meshDS->SetMeshElementOnShape(F, geomFaceID);
+ }
+ }
+ } // end nr<nl
+ StdMeshers_Array2OfNode NodesLast(1,nt,1,2);
+ for (i=1; i<=nt; i++) {
+ NodesLast.SetValue(i,2,uv_et[i-1].node);
+ }
+ int nnn=0;
+ for (i=n1; i<drl+addv+1; i++) {
+ nnn++;
+ NodesLast.SetValue(nnn,1,NodesC.Value(1,i));
+ }
+ for (i=1; i<=nb; i++) {
+ nnn++;
+ NodesLast.SetValue(nnn,1,NodesC.Value(i,drl+addv+1));
+ }
+ for (i=drl+addv; i>=n2; i--) {
+ nnn++;
+ NodesLast.SetValue(nnn,1,NodesC.Value(nb,i));
+ }
+ for (i=1; i<nt; i++) {
+ if (WisF) {
+ SMDS_MeshFace* F =
+ myTool->AddFace(NodesLast.Value(i,1), NodesLast.Value(i+1,1),
+ NodesLast.Value(i+1,2), NodesLast.Value(i,2));
+ if (F) meshDS->SetMeshElementOnShape(F, geomFaceID);
+ }
+ else {
+ SMDS_MeshFace* F =
+ myTool->AddFace(NodesLast.Value(i,1), NodesLast.Value(i,2),
+ NodesLast.Value(i+1,2), NodesLast.Value(i+1,2));
+ if (F) meshDS->SetMeshElementOnShape(F, geomFaceID);
+ }
+ }
+ } // if ((drl+addv) > 0)
-//=============================================================================
-/*!
- *
- */
-//=============================================================================
+ } // end new version implementation
-ostream & StdMeshers_Quadrangle_2D::SaveTo(ostream & save)
-{
- return save;
+ bool isOk = true;
+ return isOk;
}
-//=============================================================================
+
+//=======================================================================
/*!
- *
+ * Evaluate only quandrangle faces
*/
-//=============================================================================
+//=======================================================================
-istream & StdMeshers_Quadrangle_2D::LoadFrom(istream & load)
+bool StdMeshers_Quadrangle_2D::EvaluateQuadPref(SMESH_Mesh & aMesh,
+ const TopoDS_Shape& aShape,
+ std::vector<int>& aNbNodes,
+ MapShapeNbElems& aResMap,
+ bool IsQuadratic)
{
- return load;
+ // Auxilary key in order to keep old variant
+ // of meshing after implementation new variant
+ // for bug 0016220 from Mantis.
+ bool OldVersion = false;
+ if (myQuadType == QUAD_QUADRANGLE_PREF_REVERSED)
+ OldVersion = true;
+
+ const TopoDS_Face& F = TopoDS::Face(aShape);
+ Handle(Geom_Surface) S = BRep_Tool::Surface(F);
+
+ int nb = aNbNodes[0];
+ int nr = aNbNodes[1];
+ int nt = aNbNodes[2];
+ int nl = aNbNodes[3];
+ int dh = abs(nb-nt);
+ int dv = abs(nr-nl);
+
+ if (dh>=dv) {
+ if (nt>nb) {
+ // it is a base case => not shift
+ }
+ else {
+ // we have to shift on 2
+ nb = aNbNodes[2];
+ nr = aNbNodes[3];
+ nt = aNbNodes[0];
+ nl = aNbNodes[1];
+ }
+ }
+ else {
+ if (nr>nl) {
+ // we have to shift quad on 1
+ nb = aNbNodes[3];
+ nr = aNbNodes[0];
+ nt = aNbNodes[1];
+ nl = aNbNodes[2];
+ }
+ else {
+ // we have to shift quad on 3
+ nb = aNbNodes[1];
+ nr = aNbNodes[2];
+ nt = aNbNodes[3];
+ nl = aNbNodes[0];
+ }
+ }
+
+ dh = abs(nb-nt);
+ dv = abs(nr-nl);
+ int nbh = Max(nb,nt);
+ int nbv = Max(nr,nl);
+ int addh = 0;
+ int addv = 0;
+
+ if (dh>dv) {
+ addv = (dh-dv)/2;
+ nbv = nbv + addv;
+ }
+ else { // dv>=dh
+ addh = (dv-dh)/2;
+ nbh = nbh + addh;
+ }
+
+ int dl,dr;
+ if (OldVersion) {
+ // add some params to right and left after the first param
+ // insert to right
+ dr = nbv - nr;
+ // insert to left
+ dl = nbv - nl;
+ }
+
+ int nnn = Min(nr,nl);
+
+ int nbNodes = 0;
+ int nbFaces = 0;
+ if (OldVersion) {
+ // step1: create faces for left domain
+ if (dl>0) {
+ nbNodes += dl*(nl-1);
+ nbFaces += dl*(nl-1);
+ }
+ // step2: create faces for right domain
+ if (dr>0) {
+ nbNodes += dr*(nr-1);
+ nbFaces += dr*(nr-1);
+ }
+ // step3: create faces for central domain
+ nbNodes += (nb-2)*(nnn-1) + (nbv-nnn-1)*(nb-2);
+ nbFaces += (nb-1)*(nbv-1);
+ }
+ else { // New version (!OldVersion)
+ nbNodes += (nnn-2)*(nb-2);
+ nbFaces += (nnn-2)*(nb-1);
+ int drl = abs(nr-nl);
+ nbNodes += drl*(nb-1) + addv*nb;
+ nbFaces += (drl+addv)*(nb-1) + (nt-1);
+ } // end new version implementation
+
+ std::vector<int> aVec(SMDSEntity_Last);
+ for (int i=SMDSEntity_Node; i<SMDSEntity_Last; i++) aVec[i] = 0;
+ if (IsQuadratic) {
+ aVec[SMDSEntity_Quad_Quadrangle] = nbFaces;
+ aVec[SMDSEntity_Node] = nbNodes + nbFaces*4;
+ if (aNbNodes.size()==5) {
+ aVec[SMDSEntity_Quad_Triangle] = aNbNodes[3] - 1;
+ aVec[SMDSEntity_Quad_Quadrangle] = nbFaces - aNbNodes[3] + 1;
+ }
+ }
+ else {
+ aVec[SMDSEntity_Node] = nbNodes;
+ aVec[SMDSEntity_Quadrangle] = nbFaces;
+ if (aNbNodes.size()==5) {
+ aVec[SMDSEntity_Triangle] = aNbNodes[3] - 1;
+ aVec[SMDSEntity_Quadrangle] = nbFaces - aNbNodes[3] + 1;
+ }
+ }
+ SMESH_subMesh * sm = aMesh.GetSubMesh(aShape);
+ aResMap.insert(std::make_pair(sm,aVec));
+
+ return true;
}
+
//=============================================================================
-/*!
- *
+/*! Split quadrangle in to 2 triangles by smallest diagonal
+ *
*/
//=============================================================================
-
-ostream & operator <<(ostream & save, StdMeshers_Quadrangle_2D & hyp)
+void StdMeshers_Quadrangle_2D::SplitQuad(SMESHDS_Mesh *theMeshDS,
+ int theFaceID,
+ const SMDS_MeshNode* theNode1,
+ const SMDS_MeshNode* theNode2,
+ const SMDS_MeshNode* theNode3,
+ const SMDS_MeshNode* theNode4)
{
- return hyp.SaveTo( save );
+ gp_Pnt a(theNode1->X(),theNode1->Y(),theNode1->Z());
+ gp_Pnt b(theNode2->X(),theNode2->Y(),theNode2->Z());
+ gp_Pnt c(theNode3->X(),theNode3->Y(),theNode3->Z());
+ gp_Pnt d(theNode4->X(),theNode4->Y(),theNode4->Z());
+ SMDS_MeshFace* face;
+ if (a.Distance(c) > b.Distance(d)){
+ face = myTool->AddFace(theNode2, theNode4 , theNode1);
+ if (face) theMeshDS->SetMeshElementOnShape(face, theFaceID);
+ face = myTool->AddFace(theNode2, theNode3, theNode4);
+ if (face) theMeshDS->SetMeshElementOnShape(face, theFaceID);
+
+ }
+ else{
+ face = myTool->AddFace(theNode1, theNode2 ,theNode3);
+ if (face) theMeshDS->SetMeshElementOnShape(face, theFaceID);
+ face = myTool->AddFace(theNode1, theNode3, theNode4);
+ if (face) theMeshDS->SetMeshElementOnShape(face, theFaceID);
+ }
}
-//=============================================================================
+//=======================================================================
/*!
- *
+ * Implementation of Reduced algorithm (meshing with quadrangles only)
*/
-//=============================================================================
-
-istream & operator >>(istream & load, StdMeshers_Quadrangle_2D & hyp)
+//=======================================================================
+bool StdMeshers_Quadrangle_2D::ComputeReduced (SMESH_Mesh & aMesh,
+ const TopoDS_Shape& aShape,
+ FaceQuadStruct* quad)
{
- return hyp.LoadFrom( load );
+ SMESHDS_Mesh * meshDS = aMesh.GetMeshDS();
+ const TopoDS_Face& F = TopoDS::Face(aShape);
+ Handle(Geom_Surface) S = BRep_Tool::Surface(F);
+ int i,j,geomFaceID = meshDS->ShapeToIndex(F);
+
+ int nb = quad->side[0]->NbPoints();
+ int nr = quad->side[1]->NbPoints();
+ int nt = quad->side[2]->NbPoints();
+ int nl = quad->side[3]->NbPoints();
+
+ // Simple Reduce 8->6->4->2 (3 steps) Multiple Reduce 8->2 (1 step)
+ //
+ // .-----.-----.-----.-----. .-----.-----.-----.-----.
+ // | / \ | / \ | | / \ | / \ |
+ // | / .--.--. \ | | / \ | / \ |
+ // | / / | \ \ | | / .----.----. \ |
+ // .---.---.---.---.---.---. | / / \ | / \ \ |
+ // | / / \ | / \ \ | | / / \ | / \ \ |
+ // | / / .-.-. \ \ | | / / .---.---. \ \ |
+ // | / / / | \ \ \ | | / / / \ | / \ \ \ |
+ // .--.--.--.--.--.--.--.--. | / / / \ | / \ \ \ |
+ // | / / / \ | / \ \ \ | | / / / .-.-. \ \ \ |
+ // | / / / .-.-. \ \ \ | | / / / / | \ \ \ \ |
+ // | / / / / | \ \ \ \ | | / / / / | \ \ \ \ |
+ // .-.-.-.--.--.--.--.-.-.-. .-.-.-.--.--.--.--.-.-.-.
+
+ bool MultipleReduce = false;
+ {
+ int nb1 = nb;
+ int nr1 = nr;
+ int nt1 = nt;
+ int nl1 = nl;
+
+ if (nr == nl) {
+ if (nb < nt) {
+ nt1 = nb;
+ nb1 = nt;
+ }
+ }
+ else if (nb == nt) {
+ nl1 = nb; // and == nt
+ nr1 = nb; // and == nt
+ if (nl < nr) {
+ nt1 = nl;
+ nb1 = nr;
+ }
+ else {
+ nt1 = nr;
+ nb1 = nl;
+ }
+ }
+ else {
+ return false;
+ }
+
+ // number of rows and columns
+ int nrows = nr1 - 1; // and also == nl1 - 1
+ int ncol_top = nt1 - 1;
+ int ncol_bot = nb1 - 1;
+ // maximum number of bottom elements for "tree" simple reduce 3->1
+ int max_tree31 = ncol_top * pow(3.0, nrows);
+ if (ncol_bot > max_tree31)
+ MultipleReduce = true;
+ }
+
+ if (MultipleReduce) { // == ComputeQuadPref QUAD_QUADRANGLE_PREF_REVERSED
+ //==================================================
+ int dh = abs(nb-nt);
+ int dv = abs(nr-nl);
+
+ if (dh >= dv) {
+ if (nt > nb) {
+ // it is a base case => not shift quad but may be replacement is need
+ ShiftQuad(quad,0,true);
+ }
+ else {
+ // we have to shift quad on 2
+ ShiftQuad(quad,2,true);
+ }
+ }
+ else {
+ if (nr > nl) {
+ // we have to shift quad on 1
+ ShiftQuad(quad,1,true);
+ }
+ else {
+ // we have to shift quad on 3
+ ShiftQuad(quad,3,true);
+ }
+ }
+
+ nb = quad->side[0]->NbPoints();
+ nr = quad->side[1]->NbPoints();
+ nt = quad->side[2]->NbPoints();
+ nl = quad->side[3]->NbPoints();
+ dh = abs(nb-nt);
+ dv = abs(nr-nl);
+ int nbh = Max(nb,nt);
+ int nbv = Max(nr,nl);
+ int addh = 0;
+ int addv = 0;
+
+ if (dh>dv) {
+ addv = (dh-dv)/2;
+ nbv = nbv + addv;
+ }
+ else { // dv>=dh
+ addh = (dv-dh)/2;
+ nbh = nbh + addh;
+ }
+
+ const vector<UVPtStruct>& uv_eb = quad->side[0]->GetUVPtStruct(true,0);
+ const vector<UVPtStruct>& uv_er = quad->side[1]->GetUVPtStruct(false,1);
+ const vector<UVPtStruct>& uv_et = quad->side[2]->GetUVPtStruct(true,1);
+ const vector<UVPtStruct>& uv_el = quad->side[3]->GetUVPtStruct(false,0);
+
+ if (uv_eb.size() != nb || uv_er.size() != nr || uv_et.size() != nt || uv_el.size() != nl)
+ return error(COMPERR_BAD_INPUT_MESH);
+
+ // arrays for normalized params
+ TColStd_SequenceOfReal npb, npr, npt, npl;
+ for (j = 0; j < nb; j++) {
+ npb.Append(uv_eb[j].normParam);
+ }
+ for (i = 0; i < nr; i++) {
+ npr.Append(uv_er[i].normParam);
+ }
+ for (j = 0; j < nt; j++) {
+ npt.Append(uv_et[j].normParam);
+ }
+ for (i = 0; i < nl; i++) {
+ npl.Append(uv_el[i].normParam);
+ }
+
+ int dl,dr;
+ // orientation of face and 3 main domain for future faces
+ // 0 top 1
+ // 1------------1
+ // | | | |
+ // | | | |
+ // | L | | R |
+ // left | | | | rigth
+ // | / \ |
+ // | / C \ |
+ // |/ \|
+ // 0------------0
+ // 0 bottom 1
+
+ // add some params to right and left after the first param
+ // insert to right
+ dr = nbv - nr;
+ double dpr = (npr.Value(2) - npr.Value(1))/(dr+1);
+ for (i=1; i<=dr; i++) {
+ npr.InsertAfter(1,npr.Value(2)-dpr);
+ }
+ // insert to left
+ dl = nbv - nl;
+ dpr = (npl.Value(2) - npl.Value(1))/(dl+1);
+ for (i=1; i<=dl; i++) {
+ npl.InsertAfter(1,npl.Value(2)-dpr);
+ }
+
+ gp_XY a0 (uv_eb.front().u, uv_eb.front().v);
+ gp_XY a1 (uv_eb.back().u, uv_eb.back().v);
+ gp_XY a2 (uv_et.back().u, uv_et.back().v);
+ gp_XY a3 (uv_et.front().u, uv_et.front().v);
+
+ int nnn = Min(nr,nl);
+ // auxilary sequence of XY for creation nodes
+ // in the bottom part of central domain
+ // it's length must be == nbv-nnn-1
+ TColgp_SequenceOfXY UVL;
+ TColgp_SequenceOfXY UVR;
+ //==================================================
+
+ // step1: create faces for left domain
+ StdMeshers_Array2OfNode NodesL(1,dl+1,1,nl);
+ // add left nodes
+ for (j=1; j<=nl; j++)
+ NodesL.SetValue(1,j,uv_el[j-1].node);
+ if (dl>0) {
+ // add top nodes
+ for (i=1; i<=dl; i++)
+ NodesL.SetValue(i+1,nl,uv_et[i].node);
+ // create and add needed nodes
+ TColgp_SequenceOfXY UVtmp;
+ for (i=1; i<=dl; i++) {
+ double x0 = npt.Value(i+1);
+ double x1 = x0;
+ // diagonal node
+ double y0 = npl.Value(i+1);
+ double y1 = npr.Value(i+1);
+ gp_UV UV = CalcUV(x0, x1, y0, y1, quad, a0, a1, a2, a3);
+ gp_Pnt P = S->Value(UV.X(),UV.Y());
+ SMDS_MeshNode * N = meshDS->AddNode(P.X(), P.Y(), P.Z());
+ meshDS->SetNodeOnFace(N, geomFaceID, UV.X(), UV.Y());
+ NodesL.SetValue(i+1,1,N);
+ if (UVL.Length()<nbv-nnn-1) UVL.Append(UV);
+ // internal nodes
+ for (j=2; j<nl; j++) {
+ double y0 = npl.Value(dl+j);
+ double y1 = npr.Value(dl+j);
+ gp_UV UV = CalcUV(x0, x1, y0, y1, quad, a0, a1, a2, a3);
+ gp_Pnt P = S->Value(UV.X(),UV.Y());
+ SMDS_MeshNode* N = meshDS->AddNode(P.X(), P.Y(), P.Z());
+ meshDS->SetNodeOnFace(N, geomFaceID, UV.X(), UV.Y());
+ NodesL.SetValue(i+1,j,N);
+ if (i==dl) UVtmp.Append(UV);
+ }
+ }
+ for (i=1; i<=UVtmp.Length() && UVL.Length()<nbv-nnn-1; i++) {
+ UVL.Append(UVtmp.Value(i));
+ }
+ // create faces
+ for (i=1; i<=dl; i++) {
+ for (j=1; j<nl; j++) {
+ SMDS_MeshFace* F =
+ myTool->AddFace(NodesL.Value(i,j), NodesL.Value(i+1,j),
+ NodesL.Value(i+1,j+1), NodesL.Value(i,j+1));
+ if (F) meshDS->SetMeshElementOnShape(F, geomFaceID);
+ }
+ }
+ }
+ else {
+ // fill UVL using c2d
+ for (i=1; i<npl.Length() && UVL.Length()<nbv-nnn-1; i++) {
+ UVL.Append(gp_UV (uv_el[i].u, uv_el[i].v));
+ }
+ }
+
+ // step2: create faces for right domain
+ StdMeshers_Array2OfNode NodesR(1,dr+1,1,nr);
+ // add right nodes
+ for (j=1; j<=nr; j++)
+ NodesR.SetValue(1,j,uv_er[nr-j].node);
+ if (dr>0) {
+ // add top nodes
+ for (i=1; i<=dr; i++)
+ NodesR.SetValue(i+1,1,uv_et[nt-1-i].node);
+ // create and add needed nodes
+ TColgp_SequenceOfXY UVtmp;
+ for (i=1; i<=dr; i++) {
+ double x0 = npt.Value(nt-i);
+ double x1 = x0;
+ // diagonal node
+ double y0 = npl.Value(i+1);
+ double y1 = npr.Value(i+1);
+ gp_UV UV = CalcUV(x0, x1, y0, y1, quad, a0, a1, a2, a3);
+ gp_Pnt P = S->Value(UV.X(),UV.Y());
+ SMDS_MeshNode * N = meshDS->AddNode(P.X(), P.Y(), P.Z());
+ meshDS->SetNodeOnFace(N, geomFaceID, UV.X(), UV.Y());
+ NodesR.SetValue(i+1,nr,N);
+ if (UVR.Length()<nbv-nnn-1) UVR.Append(UV);
+ // internal nodes
+ for (j=2; j<nr; j++) {
+ double y0 = npl.Value(nbv-j+1);
+ double y1 = npr.Value(nbv-j+1);
+ gp_UV UV = CalcUV(x0, x1, y0, y1, quad, a0, a1, a2, a3);
+ gp_Pnt P = S->Value(UV.X(),UV.Y());
+ SMDS_MeshNode* N = meshDS->AddNode(P.X(), P.Y(), P.Z());
+ meshDS->SetNodeOnFace(N, geomFaceID, UV.X(), UV.Y());
+ NodesR.SetValue(i+1,j,N);
+ if (i==dr) UVtmp.Prepend(UV);
+ }
+ }
+ for (i=1; i<=UVtmp.Length() && UVR.Length()<nbv-nnn-1; i++) {
+ UVR.Append(UVtmp.Value(i));
+ }
+ // create faces
+ for (i=1; i<=dr; i++) {
+ for (j=1; j<nr; j++) {
+ SMDS_MeshFace* F =
+ myTool->AddFace(NodesR.Value(i,j), NodesR.Value(i+1,j),
+ NodesR.Value(i+1,j+1), NodesR.Value(i,j+1));
+ if (F) meshDS->SetMeshElementOnShape(F, geomFaceID);
+ }
+ }
+ }
+ else {
+ // fill UVR using c2d
+ for (i=1; i<npr.Length() && UVR.Length()<nbv-nnn-1; i++) {
+ UVR.Append(gp_UV(uv_er[i].u, uv_er[i].v));
+ }
+ }
+
+ // step3: create faces for central domain
+ StdMeshers_Array2OfNode NodesC(1,nb,1,nbv);
+ // add first line using NodesL
+ for (i=1; i<=dl+1; i++)
+ NodesC.SetValue(1,i,NodesL(i,1));
+ for (i=2; i<=nl; i++)
+ NodesC.SetValue(1,dl+i,NodesL(dl+1,i));
+ // add last line using NodesR
+ for (i=1; i<=dr+1; i++)
+ NodesC.SetValue(nb,i,NodesR(i,nr));
+ for (i=1; i<nr; i++)
+ NodesC.SetValue(nb,dr+i+1,NodesR(dr+1,nr-i));
+ // add top nodes (last columns)
+ for (i=dl+2; i<nbh-dr; i++)
+ NodesC.SetValue(i-dl,nbv,uv_et[i-1].node);
+ // add bottom nodes (first columns)
+ for (i=2; i<nb; i++)
+ NodesC.SetValue(i,1,uv_eb[i-1].node);
+
+ // create and add needed nodes
+ // add linear layers
+ for (i=2; i<nb; i++) {
+ double x0 = npt.Value(dl+i);
+ double x1 = x0;
+ for (j=1; j<nnn; j++) {
+ double y0 = npl.Value(nbv-nnn+j);
+ double y1 = npr.Value(nbv-nnn+j);
+ gp_UV UV = CalcUV(x0, x1, y0, y1, quad, a0, a1, a2, a3);
+ gp_Pnt P = S->Value(UV.X(),UV.Y());
+ SMDS_MeshNode* N = meshDS->AddNode(P.X(), P.Y(), P.Z());
+ meshDS->SetNodeOnFace(N, geomFaceID, UV.X(), UV.Y());
+ NodesC.SetValue(i,nbv-nnn+j,N);
+ }
+ }
+ // add diagonal layers
+ for (i=1; i<nbv-nnn; i++) {
+ double du = UVR.Value(i).X() - UVL.Value(i).X();
+ double dv = UVR.Value(i).Y() - UVL.Value(i).Y();
+ for (j=2; j<nb; j++) {
+ double u = UVL.Value(i).X() + du*npb.Value(j);
+ double v = UVL.Value(i).Y() + dv*npb.Value(j);
+ gp_Pnt P = S->Value(u,v);
+ SMDS_MeshNode* N = meshDS->AddNode(P.X(), P.Y(), P.Z());
+ meshDS->SetNodeOnFace(N, geomFaceID, u, v);
+ NodesC.SetValue(j,i+1,N);
+ }
+ }
+ // create faces
+ for (i=1; i<nb; i++) {
+ for (j=1; j<nbv; j++) {
+ SMDS_MeshFace* F =
+ myTool->AddFace(NodesC.Value(i,j), NodesC.Value(i+1,j),
+ NodesC.Value(i+1,j+1), NodesC.Value(i,j+1));
+ if (F) meshDS->SetMeshElementOnShape(F, geomFaceID);
+ }
+ }
+ // TODO ???
+ } // end Multiple Reduce implementation
+ else { // Simple Reduce (!MultipleReduce)
+ //=========================================================
+ if (nr == nl) {
+ if (nt < nb) {
+ // it is a base case => not shift quad
+ //ShiftQuad(quad,0,true);
+ }
+ else {
+ // we have to shift quad on 2
+ ShiftQuad(quad,2,true);
+ }
+ }
+ else {
+ if (nl > nr) {
+ // we have to shift quad on 1
+ ShiftQuad(quad,1,true);
+ }
+ else {
+ // we have to shift quad on 3
+ ShiftQuad(quad,3,true);
+ }
+ }
+
+ nb = quad->side[0]->NbPoints();
+ nr = quad->side[1]->NbPoints();
+ nt = quad->side[2]->NbPoints();
+ nl = quad->side[3]->NbPoints();
+
+ // number of rows and columns
+ int nrows = nr - 1; // and also == nl - 1
+ int ncol_top = nt - 1;
+ int ncol_bot = nb - 1;
+ int npair_top = ncol_top / 2;
+ // maximum number of bottom elements for "linear" simple reduce 4->2
+ int max_lin = ncol_top + npair_top * 2 * nrows;
+ // maximum number of bottom elements for "linear" simple reduce 4->2
+ int max_lin31 = ncol_top + ncol_top * 2 * nrows;
+ // maximum number of bottom elements for "tree" simple reduce 4->2
+ int max_tree42 = npair_top * pow(2.0, nrows + 1);
+ if (ncol_top > npair_top * 2) {
+ int delta = ncol_bot - max_tree42;
+ for (int irow = 1; irow < nrows; irow++) {
+ int nfour = delta / 4;
+ delta -= nfour * 2;
+ }
+ if (delta <= (ncol_top - npair_top * 2))
+ max_tree42 = ncol_bot;
+ }
+ // maximum number of bottom elements for "tree" simple reduce 3->1
+ //int max_tree31 = ncol_top * pow(3.0, nrows);
+ bool is_lin_31 = false;
+ bool is_lin_42 = false;
+ bool is_tree_31 = false;
+ bool is_tree_42 = false;
+ if (ncol_bot > max_lin) {
+ if (ncol_bot <= max_lin31) {
+ is_lin_31 = true;
+ max_lin = max_lin31;
+ }
+ }
+ else {
+ // if ncol_bot is a 3*n or not 2*n
+ if ((ncol_bot/3)*3 == ncol_bot || (ncol_bot/2)*2 != ncol_bot) {
+ is_lin_31 = true;
+ max_lin = max_lin31;
+ }
+ else {
+ is_lin_42 = true;
+ }
+ }
+ if (ncol_bot > max_lin) { // not "linear"
+ is_tree_31 = (ncol_bot > max_tree42);
+ if (ncol_bot <= max_tree42) {
+ if ((ncol_bot/3)*3 == ncol_bot || (ncol_bot/2)*2 != ncol_bot) {
+ is_tree_31 = true;
+ }
+ else {
+ is_tree_42 = true;
+ }
+ }
+ }
+
+ const vector<UVPtStruct>& uv_eb = quad->side[0]->GetUVPtStruct(true,0);
+ const vector<UVPtStruct>& uv_er = quad->side[1]->GetUVPtStruct(false,1);
+ const vector<UVPtStruct>& uv_et = quad->side[2]->GetUVPtStruct(true,1);
+ const vector<UVPtStruct>& uv_el = quad->side[3]->GetUVPtStruct(false,0);
+
+ if (uv_eb.size() != nb || uv_er.size() != nr || uv_et.size() != nt || uv_el.size() != nl)
+ return error(COMPERR_BAD_INPUT_MESH);
+
+ // arrays for normalized params
+ TColStd_SequenceOfReal npb, npr, npt, npl;
+ for (j = 0; j < nb; j++) {
+ npb.Append(uv_eb[j].normParam);
+ }
+ for (i = 0; i < nr; i++) {
+ npr.Append(uv_er[i].normParam);
+ }
+ for (j = 0; j < nt; j++) {
+ npt.Append(uv_et[j].normParam);
+ }
+ for (i = 0; i < nl; i++) {
+ npl.Append(uv_el[i].normParam);
+ }
+
+ // We will ajust new points to this grid
+ if (!SetNormalizedGrid(aMesh, aShape, quad))
+ return false;
+
+ // TODO ???
+ gp_XY a0 (uv_eb.front().u, uv_eb.front().v);
+ gp_XY a1 (uv_eb.back().u, uv_eb.back().v);
+ gp_XY a2 (uv_et.back().u, uv_et.back().v);
+ gp_XY a3 (uv_et.front().u, uv_et.front().v);
+ //=========================================================
+
+ TColStd_SequenceOfInteger curr_base, next_base;
+ TColStd_SequenceOfReal curr_par_u, curr_par_v;
+ TColStd_SequenceOfReal next_par_u, next_par_v;
+ StdMeshers_Array2OfNode NodesBRD (1,nb, 1,nr);
+ for (j = 1; j <= nb; j++) {
+ NodesBRD.SetValue(j, 1, uv_eb[j - 1].node); // bottom
+ curr_base.Append(j);
+ next_base.Append(-1);
+ curr_par_u.Append(uv_eb[j-1].u);
+ curr_par_v.Append(uv_eb[j-1].v);
+ next_par_u.Append(0.);
+ next_par_v.Append(0.);
+ }
+ for (j = 1; j <= nt; j++) {
+ NodesBRD.SetValue(j, nr, uv_et[j - 1].node); // top
+ }
+
+ int curr_base_len = nb;
+ int next_base_len = 0;
+
+ if (is_tree_42) {
+ // "tree" simple reduce "42": 2->4->8->16->32->...
+ //
+ // .-------------------------------.-------------------------------. nr
+ // | \ | / |
+ // | \ .---------------.---------------. / |
+ // | | | | |
+ // .---------------.---------------.---------------.---------------.
+ // | \ | / | \ | / |
+ // | \ .-------.-------. / | \ .-------.-------. / |
+ // | | | | | | | | |
+ // .-------.-------.-------.-------.-------.-------.-------.-------. i
+ // |\ | /|\ | /|\ | /|\ | /|
+ // | \.---.---./ | \.---.---./ | \.---.---./ | \.---.---./ |
+ // | | | | | | | | | | | | | | | | |
+ // .---.---.---.---.---.---.---.---.---.---.---.---.---.---.---.---.
+ // |\ | /|\ | /|\ | /|\ | /|\ | /|\ | /|\ | /|\ | /|
+ // | .-.-. | .-.-. | .-.-. | .-.-. | .-.-. | .-.-. | .-.-. | .-.-. |
+ // | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
+ // .-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-. 1
+ // 1 j nb
+
+ for (i = 1; i < nr; i++) { // layer by layer
+ // left
+ NodesBRD.SetValue(1, i+1, uv_el[i].node);
+ next_base.SetValue(++next_base_len, 1);
+ // right
+ NodesBRD.SetValue(nb, i+1, uv_er[i].node);
+
+ next_par_u.SetValue(next_base_len, uv_el[i].u);
+ next_par_v.SetValue(next_base_len, uv_el[i].v);
+
+ // to stop reducing, if number of nodes reaches nt
+ int delta = curr_base_len - nt;
+
+ //double du = uv_er[i].u - uv_el[i].u;
+ //double dv = uv_er[i].v - uv_el[i].v;
+
+ // to calculate normalized parameter, we must know number of points in next layer
+ int nb_four = (curr_base_len - 1) / 4;
+ int nb_next = nb_four*2 + (curr_base_len - nb_four*4);
+ if (nb_next < nt) nb_next = nt;
+
+ for (j = 1; j + 4 <= curr_base_len && delta > 0; j += 4, delta -= 2) {
+ // add one "HH": nodes a,b,c,d,e and faces 1,2,3,4,5,6
+ //
+ // .-----a-----b i + 1
+ // |\ 5 | 6 /|
+ // | \ | / |
+ // | c--d--e |
+ // |1 |2 |3 |4 |
+ // | | | | |
+ // .--.--.--.--. i
+ //
+ // j j+2 j+4
+
+ double u,v;
+
+ // a (i + 1, j + 2)
+ const SMDS_MeshNode* Na;
+ next_base_len++;
+ next_base.SetValue(next_base_len, curr_base.Value(j + 2));
+ if (i + 1 == nr) { // top
+ Na = uv_et[next_base_len - 1].node;
+ NodesBRD.SetValue(next_base.Value(next_base_len), i + 1, Na);
+ u = uv_et[next_base_len - 1].u;
+ v = uv_et[next_base_len - 1].v;
+ }
+ else {
+ //double norm_par = double(next_base_len - 1)/double(nb_next - 1);
+ //u = uv_el[i].u + du * norm_par;
+ //v = uv_el[i].v + dv * norm_par;
+ {
+ double rel = double(next_base_len - 1) * double(nt - 1) / double(nb_next - 1) + 1;
+ int nearest_node_j = (int)rel;
+ rel -= nearest_node_j;
+ int ij = (i + 1 - 1) * nt + (nearest_node_j - 1);
+ double u1 = quad->uv_grid[ij].u;
+ double v1 = quad->uv_grid[ij].v;
+ double u2 = quad->uv_grid[ij + 1].u;
+ double v2 = quad->uv_grid[ij + 1].v;
+ double duj = (u2 - u1) * rel;
+ double dvj = (v2 - v1) * rel;
+ u = u1 + duj;
+ v = v1 + dvj;
+ }
+ //u = uv_el[i].u + du*npb.Value(curr_base.Value(j + 2));
+ //v = uv_el[i].v + dv*npb.Value(curr_base.Value(j + 2));
+ gp_Pnt P = S->Value(u,v);
+ SMDS_MeshNode* Na1 = meshDS->AddNode(P.X(), P.Y(), P.Z());
+ meshDS->SetNodeOnFace(Na1, geomFaceID, u, v);
+ NodesBRD.SetValue(next_base.Value(next_base_len), i + 1, Na1);
+ Na = Na1;
+ }
+ next_par_u.SetValue(next_base_len, u);
+ next_par_v.SetValue(next_base_len, v);
+
+ // b (i + 1, j + 4)
+ const SMDS_MeshNode* Nb;
+ next_base_len++;
+ next_base.SetValue(next_base_len, curr_base.Value(j + 4));
+ if (i + 1 == nr) { // top
+ Nb = uv_et[next_base_len - 1].node;
+ NodesBRD.SetValue(next_base.Value(next_base_len), i + 1, Nb);
+ u = uv_et[next_base_len - 1].u;
+ v = uv_et[next_base_len - 1].v;
+ }
+ else if (j + 4 == curr_base_len) { // right
+ Nb = NodesBRD.Value(next_base.Value(next_base_len), i + 1);
+ u = uv_er[i].u;
+ v = uv_er[i].v;
+ }
+ else {
+ //double norm_par = double(next_base_len - 1)/double(nb_next - 1);
+ //u = uv_el[i].u + du * norm_par;
+ //v = uv_el[i].v + dv * norm_par;
+ {
+ double rel = double(next_base_len - 1) * double(nt - 1) / double(nb_next - 1) + 1;
+ int nearest_node_j = (int)rel;
+ rel -= nearest_node_j;
+ int ij = (i + 1 - 1) * nt + (nearest_node_j - 1);
+ double u1 = quad->uv_grid[ij].u;
+ double v1 = quad->uv_grid[ij].v;
+ double u2 = quad->uv_grid[ij + 1].u;
+ double v2 = quad->uv_grid[ij + 1].v;
+ double duj = (u2 - u1) * rel;
+ double dvj = (v2 - v1) * rel;
+ u = u1 + duj;
+ v = v1 + dvj;
+ }
+ //u = uv_el[i].u + du*npb.Value(curr_base.Value(j + 4));
+ //v = uv_el[i].v + dv*npb.Value(curr_base.Value(j + 4));
+ gp_Pnt P = S->Value(u,v);
+ SMDS_MeshNode* Nb1 = meshDS->AddNode(P.X(), P.Y(), P.Z());
+ meshDS->SetNodeOnFace(Nb1, geomFaceID, u, v);
+ NodesBRD.SetValue(next_base.Value(next_base_len), i + 1, Nb1);
+ Nb = Nb1;
+ }
+ next_par_u.SetValue(next_base_len, u);
+ next_par_v.SetValue(next_base_len, v);
+
+ // c
+ u = (curr_par_u.Value(j + 2) + next_par_u.Value(next_base_len - 2)) / 2.0;
+ v = (curr_par_v.Value(j + 2) + next_par_v.Value(next_base_len - 2)) / 2.0;
+ gp_Pnt P = S->Value(u,v);
+ SMDS_MeshNode* Nc = meshDS->AddNode(P.X(), P.Y(), P.Z());
+ meshDS->SetNodeOnFace(Nc, geomFaceID, u, v);
+
+ // d
+ u = (curr_par_u.Value(j + 2) + next_par_u.Value(next_base_len - 1)) / 2.0;
+ v = (curr_par_v.Value(j + 2) + next_par_v.Value(next_base_len - 1)) / 2.0;
+ P = S->Value(u,v);
+ SMDS_MeshNode* Nd = meshDS->AddNode(P.X(), P.Y(), P.Z());
+ meshDS->SetNodeOnFace(Nd, geomFaceID, u, v);
+
+ // e
+ u = (curr_par_u.Value(j + 2) + next_par_u.Value(next_base_len)) / 2.0;
+ v = (curr_par_v.Value(j + 2) + next_par_v.Value(next_base_len)) / 2.0;
+ P = S->Value(u,v);
+ SMDS_MeshNode* Ne = meshDS->AddNode(P.X(), P.Y(), P.Z());
+ meshDS->SetNodeOnFace(Ne, geomFaceID, u, v);
+
+ // Faces
+ SMDS_MeshFace* F1 = myTool->AddFace(NodesBRD.Value(curr_base.Value(j + 0), i),
+ NodesBRD.Value(curr_base.Value(j + 1), i),
+ Nc,
+ NodesBRD.Value(next_base.Value(next_base_len - 2), i + 1));
+ if (F1) meshDS->SetMeshElementOnShape(F1, geomFaceID);
+
+ SMDS_MeshFace* F2 = myTool->AddFace(NodesBRD.Value(curr_base.Value(j + 1), i),
+ NodesBRD.Value(curr_base.Value(j + 2), i),
+ Nd, Nc);
+ if (F2) meshDS->SetMeshElementOnShape(F2, geomFaceID);
+
+ SMDS_MeshFace* F3 = myTool->AddFace(NodesBRD.Value(curr_base.Value(j + 2), i),
+ NodesBRD.Value(curr_base.Value(j + 3), i),
+ Ne, Nd);
+ if (F3) meshDS->SetMeshElementOnShape(F3, geomFaceID);
+
+ SMDS_MeshFace* F4 = myTool->AddFace(NodesBRD.Value(curr_base.Value(j + 3), i),
+ NodesBRD.Value(curr_base.Value(j + 4), i),
+ Nb, Ne);
+ if (F4) meshDS->SetMeshElementOnShape(F4, geomFaceID);
+
+ SMDS_MeshFace* F5 = myTool->AddFace(Nc, Nd, Na,
+ NodesBRD.Value(next_base.Value(next_base_len - 2), i + 1));
+ if (F5) meshDS->SetMeshElementOnShape(F5, geomFaceID);
+
+ SMDS_MeshFace* F6 = myTool->AddFace(Nd, Ne, Nb, Na);
+ if (F6) meshDS->SetMeshElementOnShape(F6, geomFaceID);
+ }
+
+ // not reduced side elements (if any)
+ for (; j < curr_base_len; j++) {
+ // f (i + 1, j + 1)
+ const SMDS_MeshNode* Nf;
+ double u,v;
+ next_base.SetValue(++next_base_len, curr_base.Value(j + 1));
+ if (i + 1 == nr) { // top
+ Nf = uv_et[next_base_len - 1].node;
+ NodesBRD.SetValue(next_base.Value(next_base_len), i + 1, Nf);
+ u = uv_et[next_base_len - 1].u;
+ v = uv_et[next_base_len - 1].v;
+ }
+ else if (j + 1 == curr_base_len) { // right
+ Nf = NodesBRD.Value(next_base.Value(next_base_len), i + 1);
+ u = uv_er[i].u;
+ v = uv_er[i].v;
+ }
+ else {
+ //double norm_par = double(next_base_len - 1)/double(nb_next - 1);
+ //u = uv_el[i].u + du * norm_par;
+ //v = uv_el[i].v + dv * norm_par;
+ {
+ double rel = double(next_base_len - 1) * double(nt - 1) / double(nb_next - 1) + 1;
+ int nearest_node_j = (int)rel;
+ rel -= nearest_node_j;
+ int ij = (i + 1 - 1) * nt + (nearest_node_j - 1);
+ double u1 = quad->uv_grid[ij].u;
+ double v1 = quad->uv_grid[ij].v;
+ double u2 = quad->uv_grid[ij + 1].u;
+ double v2 = quad->uv_grid[ij + 1].v;
+ double duj = (u2 - u1) * rel;
+ double dvj = (v2 - v1) * rel;
+ u = u1 + duj;
+ v = v1 + dvj;
+ }
+ //u = uv_el[i].u + du*npb.Value(curr_base.Value(j + 1));
+ //v = uv_el[i].v + dv*npb.Value(curr_base.Value(j + 1));
+ gp_Pnt P = S->Value(u,v);
+ SMDS_MeshNode* Nf1 = meshDS->AddNode(P.X(), P.Y(), P.Z());
+ meshDS->SetNodeOnFace(Nf1, geomFaceID, u, v);
+ NodesBRD.SetValue(next_base.Value(next_base_len), i + 1, Nf1);
+ Nf = Nf1;
+ }
+ next_par_u.SetValue(next_base_len, u);
+ next_par_v.SetValue(next_base_len, v);
+ SMDS_MeshFace* F1 = myTool->AddFace(NodesBRD.Value(curr_base.Value(j), i),
+ NodesBRD.Value(curr_base.Value(j + 1), i),
+ NodesBRD.Value(next_base.Value(next_base_len), i + 1),
+ NodesBRD.Value(next_base.Value(next_base_len - 1), i + 1));
+ if (F1) meshDS->SetMeshElementOnShape(F1, geomFaceID);
+ }
+
+ curr_base_len = next_base_len;
+ curr_base = next_base;
+ curr_par_u = next_par_u;
+ curr_par_v = next_par_v;
+ next_base_len = 0;
+ }
+ } // end "tree" simple reduce "42"
+ else if (is_tree_31) {
+ // "tree" simple reduce "31": 1->3->9->27->...
+ //
+ // .-----------------------------------------------------. nr
+ // | \ / |
+ // | .-----------------. |
+ // | | | |
+ // .-----------------.-----------------.-----------------.
+ // | \ / | \ / | \ / |
+ // | .-----. | .-----. | .-----. | i
+ // | | | | | | | | | |
+ // .-----.-----.-----.-----.-----.-----.-----.-----.-----.
+ // |\ /|\ /|\ /|\ /|\ /|\ /|\ /|\ /|\ /|
+ // | .-. | .-. | .-. | .-. | .-. | .-. | .-. | .-. | .-. |
+ // | | | | | | | | | | | | | | | | | | | | | | | | | | | |
+ // .-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-. 1
+ // 1 j nb
+
+ for (i = 1; i < nr; i++) { // layer by layer
+ // left
+ NodesBRD.SetValue(1, i+1, uv_el[i].node);
+ next_base.SetValue(++next_base_len, 1);
+ // right
+ NodesBRD.SetValue(nb, i+1, uv_er[i].node);
+
+ next_par_u.SetValue(next_base_len, uv_el[i].u);
+ next_par_v.SetValue(next_base_len, uv_el[i].v);
+
+ // to stop reducing, if number of nodes reaches nt
+ int delta = curr_base_len - nt;
+
+ // to calculate normalized parameter, we must know number of points in next layer
+ int nb_three = (curr_base_len - 1) / 3;
+ int nb_next = nb_three + (curr_base_len - nb_three*3);
+ if (nb_next < nt) nb_next = nt;
+
+ for (j = 1; j + 3 <= curr_base_len && delta > 0; j += 3, delta -= 2) {
+ // add one "H": nodes b,c,e and faces 1,2,4,5
+ //
+ // .---------b i + 1
+ // |\ 5 /|
+ // | \ / |
+ // | c---e |
+ // |1 |2 |4 |
+ // | | | |
+ // .--.---.--. i
+ //
+ // j j+1 j+2 j+3
+
+ double u,v;
+
+ // b (i + 1, j + 3)
+ const SMDS_MeshNode* Nb;
+ next_base_len++;
+ next_base.SetValue(next_base_len, curr_base.Value(j + 3));
+ if (i + 1 == nr) { // top
+ Nb = uv_et[next_base_len - 1].node;
+ NodesBRD.SetValue(next_base.Value(next_base_len), i + 1, Nb);
+ u = uv_et[next_base_len - 1].u;
+ v = uv_et[next_base_len - 1].v;
+ }
+ else if (j + 3 == curr_base_len) { // right
+ Nb = NodesBRD.Value(next_base.Value(next_base_len), i + 1);
+ u = uv_er[i].u;
+ v = uv_er[i].v;
+ }
+ else {
+ {
+ double rel = double(next_base_len - 1) * double(nt - 1) / double(nb_next - 1) + 1;
+ int nearest_node_j = (int)rel;
+ rel -= nearest_node_j;
+ int ij = (i + 1 - 1) * nt + (nearest_node_j - 1);
+ double u1 = quad->uv_grid[ij].u;
+ double v1 = quad->uv_grid[ij].v;
+ double u2 = quad->uv_grid[ij + 1].u;
+ double v2 = quad->uv_grid[ij + 1].v;
+ double duj = (u2 - u1) * rel;
+ double dvj = (v2 - v1) * rel;
+ u = u1 + duj;
+ v = v1 + dvj;
+ }
+ gp_Pnt P = S->Value(u,v);
+ SMDS_MeshNode* Nb1 = meshDS->AddNode(P.X(), P.Y(), P.Z());
+ meshDS->SetNodeOnFace(Nb1, geomFaceID, u, v);
+ NodesBRD.SetValue(next_base.Value(next_base_len), i + 1, Nb1);
+ Nb = Nb1;
+ }
+ next_par_u.SetValue(next_base_len, u);
+ next_par_v.SetValue(next_base_len, v);
+
+ // c and e
+ double u1 = (curr_par_u.Value(j) + next_par_u.Value(next_base_len - 1)) / 2.0;
+ double u2 = (curr_par_u.Value(j + 3) + next_par_u.Value(next_base_len)) / 2.0;
+ double u3 = (u2 - u1) / 3.0;
+
+ double v1 = (curr_par_v.Value(j) + next_par_v.Value(next_base_len - 1)) / 2.0;
+ double v2 = (curr_par_v.Value(j + 3) + next_par_v.Value(next_base_len)) / 2.0;
+ double v3 = (v2 - v1) / 3.0;
+
+ // c
+ u = u1 + u3;
+ v = v1 + v3;
+ gp_Pnt P = S->Value(u,v);
+ SMDS_MeshNode* Nc = meshDS->AddNode(P.X(), P.Y(), P.Z());
+ meshDS->SetNodeOnFace(Nc, geomFaceID, u, v);
+
+ // e
+ u = u1 + u3 + u3;
+ v = v1 + v3 + v3;
+ P = S->Value(u,v);
+ SMDS_MeshNode* Ne = meshDS->AddNode(P.X(), P.Y(), P.Z());
+ meshDS->SetNodeOnFace(Ne, geomFaceID, u, v);
+
+ // Faces
+ SMDS_MeshFace* F1 = myTool->AddFace(NodesBRD.Value(curr_base.Value(j + 0), i),
+ NodesBRD.Value(curr_base.Value(j + 1), i),
+ Nc,
+ NodesBRD.Value(next_base.Value(next_base_len - 1), i + 1));
+ if (F1) meshDS->SetMeshElementOnShape(F1, geomFaceID);
+
+ SMDS_MeshFace* F2 = myTool->AddFace(NodesBRD.Value(curr_base.Value(j + 1), i),
+ NodesBRD.Value(curr_base.Value(j + 2), i),
+ Ne, Nc);
+ if (F2) meshDS->SetMeshElementOnShape(F2, geomFaceID);
+
+ SMDS_MeshFace* F4 = myTool->AddFace(NodesBRD.Value(curr_base.Value(j + 2), i),
+ NodesBRD.Value(curr_base.Value(j + 3), i),
+ Nb, Ne);
+ if (F4) meshDS->SetMeshElementOnShape(F4, geomFaceID);
+
+ SMDS_MeshFace* F5 = myTool->AddFace(Nc, Ne, Nb,
+ NodesBRD.Value(next_base.Value(next_base_len - 1), i + 1));
+ if (F5) meshDS->SetMeshElementOnShape(F5, geomFaceID);
+ }
+
+ // not reduced side elements (if any)
+ for (; j < curr_base_len; j++) {
+ // f (i + 1, j + 1)
+ const SMDS_MeshNode* Nf;
+ double u,v;
+ next_base.SetValue(++next_base_len, curr_base.Value(j + 1));
+ if (i + 1 == nr) { // top
+ Nf = uv_et[next_base_len - 1].node;
+ NodesBRD.SetValue(next_base.Value(next_base_len), i + 1, Nf);
+ u = uv_et[next_base_len - 1].u;
+ v = uv_et[next_base_len - 1].v;
+ }
+ else if (j + 1 == curr_base_len) { // right
+ Nf = NodesBRD.Value(next_base.Value(next_base_len), i + 1);
+ u = uv_er[i].u;
+ v = uv_er[i].v;
+ }
+ else {
+ {
+ double rel = double(next_base_len - 1) * double(nt - 1) / double(nb_next - 1) + 1;
+ int nearest_node_j = (int)rel;
+ rel -= nearest_node_j;
+ int ij = (i + 1 - 1) * nt + (nearest_node_j - 1);
+ double u1 = quad->uv_grid[ij].u;
+ double v1 = quad->uv_grid[ij].v;
+ double u2 = quad->uv_grid[ij + 1].u;
+ double v2 = quad->uv_grid[ij + 1].v;
+ double duj = (u2 - u1) * rel;
+ double dvj = (v2 - v1) * rel;
+ u = u1 + duj;
+ v = v1 + dvj;
+ }
+ gp_Pnt P = S->Value(u,v);
+ SMDS_MeshNode* Nf1 = meshDS->AddNode(P.X(), P.Y(), P.Z());
+ meshDS->SetNodeOnFace(Nf1, geomFaceID, u, v);
+ NodesBRD.SetValue(next_base.Value(next_base_len), i + 1, Nf1);
+ Nf = Nf1;
+ }
+ next_par_u.SetValue(next_base_len, u);
+ next_par_v.SetValue(next_base_len, v);
+ SMDS_MeshFace* F1 = myTool->AddFace(NodesBRD.Value(curr_base.Value(j), i),
+ NodesBRD.Value(curr_base.Value(j + 1), i),
+ NodesBRD.Value(next_base.Value(next_base_len), i + 1),
+ NodesBRD.Value(next_base.Value(next_base_len - 1), i + 1));
+ if (F1) meshDS->SetMeshElementOnShape(F1, geomFaceID);
+ }
+
+ curr_base_len = next_base_len;
+ curr_base = next_base;
+ curr_par_u = next_par_u;
+ curr_par_v = next_par_v;
+ next_base_len = 0;
+ }
+ } // end "tree" simple reduce "31"
+ else if (is_lin_42) {
+ // "linear" simple reduce "42": 4->8->12->16
+ //
+ // .---------------.---------------.---------------.---------------. nr
+ // | \ | / | \ | / |
+ // | \ .-------.-------. / | \ .-------.-------. / |
+ // | | | | | | | | |
+ // .-------.-------.-------.-------.-------.-------.-------.-------.
+ // | / \ | / \ | / \ | / \ |
+ // | / \.----.----./ \ | / \.----.----./ \ | i
+ // | / | | | \ | / | | | \ |
+ // .-----.----.----.----.----.-----.-----.----.----.----.----.-----.
+ // | / / \ | / \ \ | / / \ | / \ \ |
+ // | / / .-.-. \ \ | / / .-.-. \ \ |
+ // | / / / | \ \ \ | / / / | \ \ \ |
+ // .---.---.---.---.---.---.---.---.---.---.---.---.---.---.---.---. 1
+ // 1 j nb
+
+ // nt = 5, nb = 7, nr = 4
+ //int delta_all = 2;
+ //int delta_one_col = 6;
+ //int nb_col = 0;
+ //int remainder = 2;
+ //if (remainder > 0) nb_col++;
+ //nb_col = 1;
+ //int free_left = 1;
+ //free_left += 2;
+ //int free_middle = 4;
+
+ int delta_all = nb - nt;
+ int delta_one_col = (nr - 1) * 2;
+ int nb_col = delta_all / delta_one_col;
+ int remainder = delta_all - nb_col * delta_one_col;
+ if (remainder > 0) {
+ nb_col++;
+ }
+ int free_left = ((nt - 1) - nb_col * 2) / 2;
+ free_left += nr - 2;
+ int free_middle = (nr - 2) * 2;
+ if (remainder > 0 && nb_col == 1) {
+ int nb_rows_short_col = remainder / 2;
+ int nb_rows_thrown = (nr - 1) - nb_rows_short_col;
+ free_left -= nb_rows_thrown;
+ }
+
+ // nt = 5, nb = 17, nr = 4
+ //int delta_all = 12;
+ //int delta_one_col = 6;
+ //int nb_col = 2;
+ //int remainder = 0;
+ //int free_left = 2;
+ //int free_middle = 4;
+
+ for (i = 1; i < nr; i++, free_middle -= 2, free_left -= 1) { // layer by layer
+ // left
+ NodesBRD.SetValue(1, i+1, uv_el[i].node);
+ next_base.SetValue(++next_base_len, 1);
+ // right
+ NodesBRD.SetValue(nb, i+1, uv_er[i].node);
+
+ // left
+ next_par_u.SetValue(next_base_len, uv_el[i].u);
+ next_par_v.SetValue(next_base_len, uv_el[i].v);
+
+ // to calculate normalized parameter, we must know number of points in next layer
+ int nb_next = curr_base_len - nb_col * 2;
+ if (remainder > 0 && i > remainder / 2)
+ // take into account short "column"
+ nb_next += 2;
+ if (nb_next < nt) nb_next = nt;
+
+ // not reduced left elements
+ for (j = 1; j <= free_left; j++) {
+ // f (i + 1, j + 1)
+ const SMDS_MeshNode* Nf;
+ double u,v;
+ next_base.SetValue(++next_base_len, curr_base.Value(j + 1));
+ if (i + 1 == nr) { // top
+ Nf = uv_et[next_base_len - 1].node;
+ NodesBRD.SetValue(next_base.Value(next_base_len), i + 1, Nf);
+ u = uv_et[next_base_len - 1].u;
+ v = uv_et[next_base_len - 1].v;
+ }
+ else {
+ {
+ double rel = double(next_base_len - 1) * double(nt - 1) / double(nb_next - 1) + 1;
+ int nearest_node_j = (int)rel;
+ rel -= nearest_node_j;
+ int ij = (i + 1 - 1) * nt + (nearest_node_j - 1);
+ double u1 = quad->uv_grid[ij].u;
+ double v1 = quad->uv_grid[ij].v;
+ double u2 = quad->uv_grid[ij + 1].u;
+ double v2 = quad->uv_grid[ij + 1].v;
+ double duj = (u2 - u1) * rel;
+ double dvj = (v2 - v1) * rel;
+ u = u1 + duj;
+ v = v1 + dvj;
+ }
+ gp_Pnt P = S->Value(u,v);
+ SMDS_MeshNode* Nf1 = meshDS->AddNode(P.X(), P.Y(), P.Z());
+ meshDS->SetNodeOnFace(Nf1, geomFaceID, u, v);
+ NodesBRD.SetValue(next_base.Value(next_base_len), i + 1, Nf1);
+ Nf = Nf1;
+ }
+ next_par_u.SetValue(next_base_len, u);
+ next_par_v.SetValue(next_base_len, v);
+ SMDS_MeshFace* F1 = myTool->AddFace(NodesBRD.Value(curr_base.Value(j), i),
+ NodesBRD.Value(curr_base.Value(j + 1), i),
+ NodesBRD.Value(next_base.Value(next_base_len), i + 1),
+ NodesBRD.Value(next_base.Value(next_base_len - 1), i + 1));
+ if (F1) meshDS->SetMeshElementOnShape(F1, geomFaceID);
+ }
+
+ for (int icol = 1; icol <= nb_col; icol++) {
+
+ if (remainder > 0 && icol == nb_col && i > remainder / 2)
+ // stop short "column"
+ break;
+
+ // add one "HH": nodes a,b,c,d,e and faces 1,2,3,4,5,6
+ //
+ // .-----a-----b i + 1
+ // |\ 5 | 6 /|
+ // | \ | / |
+ // | c--d--e |
+ // |1 |2 |3 |4 |
+ // | | | | |
+ // .--.--.--.--. i
+ //
+ // j j+2 j+4
+
+ double u,v;
+
+ // a (i + 1, j + 2)
+ const SMDS_MeshNode* Na;
+ next_base_len++;
+ next_base.SetValue(next_base_len, curr_base.Value(j + 2));
+ if (i + 1 == nr) { // top
+ Na = uv_et[next_base_len - 1].node;
+ NodesBRD.SetValue(next_base.Value(next_base_len), i + 1, Na);
+ u = uv_et[next_base_len - 1].u;
+ v = uv_et[next_base_len - 1].v;
+ }
+ else {
+ {
+ double rel = double(next_base_len - 1) * double(nt - 1) / double(nb_next - 1) + 1;
+ int nearest_node_j = (int)rel;
+ rel -= nearest_node_j;
+ int ij = (i + 1 - 1) * nt + (nearest_node_j - 1);
+ double u1 = quad->uv_grid[ij].u;
+ double v1 = quad->uv_grid[ij].v;
+ double u2 = quad->uv_grid[ij + 1].u;
+ double v2 = quad->uv_grid[ij + 1].v;
+ double duj = (u2 - u1) * rel;
+ double dvj = (v2 - v1) * rel;
+ u = u1 + duj;
+ v = v1 + dvj;
+ }
+ gp_Pnt P = S->Value(u,v);
+ SMDS_MeshNode* Na1 = meshDS->AddNode(P.X(), P.Y(), P.Z());
+ meshDS->SetNodeOnFace(Na1, geomFaceID, u, v);
+ NodesBRD.SetValue(next_base.Value(next_base_len), i + 1, Na1);
+ Na = Na1;
+ }
+ next_par_u.SetValue(next_base_len, u);
+ next_par_v.SetValue(next_base_len, v);
+
+ // b (i + 1, j + 4)
+ const SMDS_MeshNode* Nb;
+ next_base_len++;
+ next_base.SetValue(next_base_len, curr_base.Value(j + 4));
+ if (i + 1 == nr) { // top
+ Nb = uv_et[next_base_len - 1].node;
+ NodesBRD.SetValue(next_base.Value(next_base_len), i + 1, Nb);
+ u = uv_et[next_base_len - 1].u;
+ v = uv_et[next_base_len - 1].v;
+ }
+ else if (j + 4 == curr_base_len) { // right
+ Nb = NodesBRD.Value(next_base.Value(next_base_len), i + 1);
+ u = uv_er[i].u;
+ v = uv_er[i].v;
+ }
+ else {
+ {
+ double rel = double(next_base_len - 1) * double(nt - 1) / double(nb_next - 1) + 1;
+ int nearest_node_j = (int)rel;
+ rel -= nearest_node_j;
+ int ij = (i + 1 - 1) * nt + (nearest_node_j - 1);
+ double u1 = quad->uv_grid[ij].u;
+ double v1 = quad->uv_grid[ij].v;
+ double u2 = quad->uv_grid[ij + 1].u;
+ double v2 = quad->uv_grid[ij + 1].v;
+ double duj = (u2 - u1) * rel;
+ double dvj = (v2 - v1) * rel;
+ u = u1 + duj;
+ v = v1 + dvj;
+ }
+ gp_Pnt P = S->Value(u,v);
+ SMDS_MeshNode* Nb1 = meshDS->AddNode(P.X(), P.Y(), P.Z());
+ meshDS->SetNodeOnFace(Nb1, geomFaceID, u, v);
+ NodesBRD.SetValue(next_base.Value(next_base_len), i + 1, Nb1);
+ Nb = Nb1;
+ }
+ next_par_u.SetValue(next_base_len, u);
+ next_par_v.SetValue(next_base_len, v);
+
+ // c
+ u = (curr_par_u.Value(j + 2) + next_par_u.Value(next_base_len - 2)) / 2.0;
+ v = (curr_par_v.Value(j + 2) + next_par_v.Value(next_base_len - 2)) / 2.0;
+ gp_Pnt P = S->Value(u,v);
+ SMDS_MeshNode* Nc = meshDS->AddNode(P.X(), P.Y(), P.Z());
+ meshDS->SetNodeOnFace(Nc, geomFaceID, u, v);
+
+ // d
+ u = (curr_par_u.Value(j + 2) + next_par_u.Value(next_base_len - 1)) / 2.0;
+ v = (curr_par_v.Value(j + 2) + next_par_v.Value(next_base_len - 1)) / 2.0;
+ P = S->Value(u,v);
+ SMDS_MeshNode* Nd = meshDS->AddNode(P.X(), P.Y(), P.Z());
+ meshDS->SetNodeOnFace(Nd, geomFaceID, u, v);
+
+ // e
+ u = (curr_par_u.Value(j + 2) + next_par_u.Value(next_base_len)) / 2.0;
+ v = (curr_par_v.Value(j + 2) + next_par_v.Value(next_base_len)) / 2.0;
+ P = S->Value(u,v);
+ SMDS_MeshNode* Ne = meshDS->AddNode(P.X(), P.Y(), P.Z());
+ meshDS->SetNodeOnFace(Ne, geomFaceID, u, v);
+
+ // Faces
+ SMDS_MeshFace* F1 = myTool->AddFace(NodesBRD.Value(curr_base.Value(j + 0), i),
+ NodesBRD.Value(curr_base.Value(j + 1), i),
+ Nc,
+ NodesBRD.Value(next_base.Value(next_base_len - 2), i + 1));
+ if (F1) meshDS->SetMeshElementOnShape(F1, geomFaceID);
+
+ SMDS_MeshFace* F2 = myTool->AddFace(NodesBRD.Value(curr_base.Value(j + 1), i),
+ NodesBRD.Value(curr_base.Value(j + 2), i),
+ Nd, Nc);
+ if (F2) meshDS->SetMeshElementOnShape(F2, geomFaceID);
+
+ SMDS_MeshFace* F3 = myTool->AddFace(NodesBRD.Value(curr_base.Value(j + 2), i),
+ NodesBRD.Value(curr_base.Value(j + 3), i),
+ Ne, Nd);
+ if (F3) meshDS->SetMeshElementOnShape(F3, geomFaceID);
+
+ SMDS_MeshFace* F4 = myTool->AddFace(NodesBRD.Value(curr_base.Value(j + 3), i),
+ NodesBRD.Value(curr_base.Value(j + 4), i),
+ Nb, Ne);
+ if (F4) meshDS->SetMeshElementOnShape(F4, geomFaceID);
+
+ SMDS_MeshFace* F5 = myTool->AddFace(Nc, Nd, Na,
+ NodesBRD.Value(next_base.Value(next_base_len - 2), i + 1));
+ if (F5) meshDS->SetMeshElementOnShape(F5, geomFaceID);
+
+ SMDS_MeshFace* F6 = myTool->AddFace(Nd, Ne, Nb, Na);
+ if (F6) meshDS->SetMeshElementOnShape(F6, geomFaceID);
+
+ j += 4;
+
+ // not reduced middle elements
+ if (icol < nb_col) {
+ if (remainder > 0 && icol == nb_col - 1 && i > remainder / 2)
+ // pass middle elements before stopped short "column"
+ break;
+
+ int free_add = free_middle;
+ if (remainder > 0 && icol == nb_col - 1)
+ // next "column" is short
+ free_add -= (nr - 1) - (remainder / 2);
+
+ for (int imiddle = 1; imiddle <= free_add; imiddle++) {
+ // f (i + 1, j + imiddle)
+ const SMDS_MeshNode* Nf;
+ double u,v;
+ next_base.SetValue(++next_base_len, curr_base.Value(j + imiddle));
+ if (i + 1 == nr) { // top
+ Nf = uv_et[next_base_len - 1].node;
+ NodesBRD.SetValue(next_base.Value(next_base_len), i + 1, Nf);
+ u = uv_et[next_base_len - 1].u;
+ v = uv_et[next_base_len - 1].v;
+ }
+ else if (j + imiddle == curr_base_len) { // right
+ Nf = NodesBRD.Value(next_base.Value(next_base_len), i + 1);
+ u = uv_er[i].u;
+ v = uv_er[i].v;
+ }
+ else {
+ {
+ double rel = double(next_base_len - 1) * double(nt - 1) / double(nb_next - 1) + 1;
+ int nearest_node_j = (int)rel;
+ rel -= nearest_node_j;
+ int ij = (i + 1 - 1) * nt + (nearest_node_j - 1);
+ double u1 = quad->uv_grid[ij].u;
+ double v1 = quad->uv_grid[ij].v;
+ double u2 = quad->uv_grid[ij + 1].u;
+ double v2 = quad->uv_grid[ij + 1].v;
+ double duj = (u2 - u1) * rel;
+ double dvj = (v2 - v1) * rel;
+ u = u1 + duj;
+ v = v1 + dvj;
+ }
+ gp_Pnt P = S->Value(u,v);
+ SMDS_MeshNode* Nf1 = meshDS->AddNode(P.X(), P.Y(), P.Z());
+ meshDS->SetNodeOnFace(Nf1, geomFaceID, u, v);
+ NodesBRD.SetValue(next_base.Value(next_base_len), i + 1, Nf1);
+ Nf = Nf1;
+ }
+ next_par_u.SetValue(next_base_len, u);
+ next_par_v.SetValue(next_base_len, v);
+ SMDS_MeshFace* F1 = myTool->AddFace(NodesBRD.Value(curr_base.Value(j - 1 + imiddle), i),
+ NodesBRD.Value(curr_base.Value(j + imiddle), i),
+ NodesBRD.Value(next_base.Value(next_base_len), i + 1),
+ NodesBRD.Value(next_base.Value(next_base_len - 1), i + 1));
+ if (F1) meshDS->SetMeshElementOnShape(F1, geomFaceID);
+ }
+ j += free_add;
+ }
+ }
+
+ // not reduced right elements
+ for (; j < curr_base_len; j++) {
+ // f (i + 1, j + 1)
+ const SMDS_MeshNode* Nf;
+ double u,v;
+ next_base.SetValue(++next_base_len, curr_base.Value(j + 1));
+ if (i + 1 == nr) { // top
+ Nf = uv_et[next_base_len - 1].node;
+ NodesBRD.SetValue(next_base.Value(next_base_len), i + 1, Nf);
+ u = uv_et[next_base_len - 1].u;
+ v = uv_et[next_base_len - 1].v;
+ }
+ else if (j + 1 == curr_base_len) { // right
+ Nf = NodesBRD.Value(next_base.Value(next_base_len), i + 1);
+ u = uv_er[i].u;
+ v = uv_er[i].v;
+ }
+ else {
+ {
+ double rel = double(next_base_len - 1) * double(nt - 1) / double(nb_next - 1) + 1;
+ int nearest_node_j = (int)rel;
+ rel -= nearest_node_j;
+ int ij = (i + 1 - 1) * nt + (nearest_node_j - 1);
+ double u1 = quad->uv_grid[ij].u;
+ double v1 = quad->uv_grid[ij].v;
+ double u2 = quad->uv_grid[ij + 1].u;
+ double v2 = quad->uv_grid[ij + 1].v;
+ double duj = (u2 - u1) * rel;
+ double dvj = (v2 - v1) * rel;
+ u = u1 + duj;
+ v = v1 + dvj;
+ }
+ gp_Pnt P = S->Value(u,v);
+ SMDS_MeshNode* Nf1 = meshDS->AddNode(P.X(), P.Y(), P.Z());
+ meshDS->SetNodeOnFace(Nf1, geomFaceID, u, v);
+ NodesBRD.SetValue(next_base.Value(next_base_len), i + 1, Nf1);
+ Nf = Nf1;
+ }
+ next_par_u.SetValue(next_base_len, u);
+ next_par_v.SetValue(next_base_len, v);
+ SMDS_MeshFace* F1 = myTool->AddFace(NodesBRD.Value(curr_base.Value(j), i),
+ NodesBRD.Value(curr_base.Value(j + 1), i),
+ NodesBRD.Value(next_base.Value(next_base_len), i + 1),
+ NodesBRD.Value(next_base.Value(next_base_len - 1), i + 1));
+ if (F1) meshDS->SetMeshElementOnShape(F1, geomFaceID);
+ }
+
+ curr_base_len = next_base_len;
+ curr_base = next_base;
+ curr_par_u = next_par_u;
+ curr_par_v = next_par_v;
+ next_base_len = 0;
+ }
+ } // end "linear" simple reduce "42"
+ else if (is_lin_31) {
+ // "linear" simple reduce "31": 2->6->10->14
+ //
+ // .-----------------------------.-----------------------------. nr
+ // | \ / | \ / |
+ // | .---------. | .---------. |
+ // | | | | | | |
+ // .---------.---------.---------.---------.---------.---------.
+ // | / \ / \ | / \ / \ |
+ // | / .-----. \ | / .-----. \ | i
+ // | / | | \ | / | | \ |
+ // .-----.-----.-----.-----.-----.-----.-----.-----.-----.-----.
+ // | / / \ / \ \ | / / \ / \ \ |
+ // | / / .-. \ \ | / / .-. \ \ |
+ // | / / / \ \ \ | / / / \ \ \ |
+ // .--.----.---.-----.---.-----.-.--.----.---.-----.---.-----.-. 1
+ // 1 j nb
+
+ int delta_all = nb - nt;
+ int delta_one_col = (nr - 1) * 2;
+ int nb_col = delta_all / delta_one_col;
+ int remainder = delta_all - nb_col * delta_one_col;
+ if (remainder > 0) {
+ nb_col++;
+ }
+ int free_left = ((nt - 1) - nb_col) / 2;
+ free_left += nr - 2;
+ int free_middle = (nr - 2) * 2;
+ if (remainder > 0 && nb_col == 1) {
+ int nb_rows_short_col = remainder / 2;
+ int nb_rows_thrown = (nr - 1) - nb_rows_short_col;
+ free_left -= nb_rows_thrown;
+ }
+
+ for (i = 1; i < nr; i++, free_middle -= 2, free_left -= 1) { // layer by layer
+ // left
+ NodesBRD.SetValue(1, i+1, uv_el[i].node);
+ next_base.SetValue(++next_base_len, 1);
+ // right
+ NodesBRD.SetValue(nb, i+1, uv_er[i].node);
+
+ // left
+ next_par_u.SetValue(next_base_len, uv_el[i].u);
+ next_par_v.SetValue(next_base_len, uv_el[i].v);
+
+ // to calculate normalized parameter, we must know number of points in next layer
+ int nb_next = curr_base_len - nb_col * 2;
+ if (remainder > 0 && i > remainder / 2)
+ // take into account short "column"
+ nb_next += 2;
+ if (nb_next < nt) nb_next = nt;
+
+ // not reduced left elements
+ for (j = 1; j <= free_left; j++) {
+ // f (i + 1, j + 1)
+ const SMDS_MeshNode* Nf;
+ double u,v;
+ next_base.SetValue(++next_base_len, curr_base.Value(j + 1));
+ if (i + 1 == nr) { // top
+ Nf = uv_et[next_base_len - 1].node;
+ NodesBRD.SetValue(next_base.Value(next_base_len), i + 1, Nf);
+ u = uv_et[next_base_len - 1].u;
+ v = uv_et[next_base_len - 1].v;
+ }
+ else {
+ {
+ double rel = double(next_base_len - 1) * double(nt - 1) / double(nb_next - 1) + 1;
+ int nearest_node_j = (int)rel;
+ rel -= nearest_node_j;
+ int ij = (i + 1 - 1) * nt + (nearest_node_j - 1);
+ double u1 = quad->uv_grid[ij].u;
+ double v1 = quad->uv_grid[ij].v;
+ double u2 = quad->uv_grid[ij + 1].u;
+ double v2 = quad->uv_grid[ij + 1].v;
+ double duj = (u2 - u1) * rel;
+ double dvj = (v2 - v1) * rel;
+ u = u1 + duj;
+ v = v1 + dvj;
+ }
+ gp_Pnt P = S->Value(u,v);
+ SMDS_MeshNode* Nf1 = meshDS->AddNode(P.X(), P.Y(), P.Z());
+ meshDS->SetNodeOnFace(Nf1, geomFaceID, u, v);
+ NodesBRD.SetValue(next_base.Value(next_base_len), i + 1, Nf1);
+ Nf = Nf1;
+ }
+ next_par_u.SetValue(next_base_len, u);
+ next_par_v.SetValue(next_base_len, v);
+ SMDS_MeshFace* F1 = myTool->AddFace(NodesBRD.Value(curr_base.Value(j), i),
+ NodesBRD.Value(curr_base.Value(j + 1), i),
+ NodesBRD.Value(next_base.Value(next_base_len), i + 1),
+ NodesBRD.Value(next_base.Value(next_base_len - 1), i + 1));
+ if (F1) meshDS->SetMeshElementOnShape(F1, geomFaceID);
+ }
+
+ for (int icol = 1; icol <= nb_col; icol++) {
+
+ if (remainder > 0 && icol == nb_col && i > remainder / 2)
+ // stop short "column"
+ break;
+
+ // add one "H": nodes b,c,e and faces 1,2,4,5
+ //
+ // .---------b i + 1
+ // |\ 5 /|
+ // | \ / |
+ // | c---e |
+ // |1 |2 |4 |
+ // | | | |
+ // .--.---.--. i
+ //
+ // j j+1 j+2 j+3
+
+ double u,v;
+
+ // b (i + 1, j + 3)
+ const SMDS_MeshNode* Nb;
+ next_base_len++;
+ next_base.SetValue(next_base_len, curr_base.Value(j + 3));
+ if (i + 1 == nr) { // top
+ Nb = uv_et[next_base_len - 1].node;
+ NodesBRD.SetValue(next_base.Value(next_base_len), i + 1, Nb);
+ u = uv_et[next_base_len - 1].u;
+ v = uv_et[next_base_len - 1].v;
+ }
+ else if (j + 3 == curr_base_len) { // right
+ Nb = NodesBRD.Value(next_base.Value(next_base_len), i + 1);
+ u = uv_er[i].u;
+ v = uv_er[i].v;
+ }
+ else {
+ {
+ double rel = double(next_base_len - 1) * double(nt - 1) / double(nb_next - 1) + 1;
+ int nearest_node_j = (int)rel;
+ rel -= nearest_node_j;
+ int ij = (i + 1 - 1) * nt + (nearest_node_j - 1);
+ double u1 = quad->uv_grid[ij].u;
+ double v1 = quad->uv_grid[ij].v;
+ double u2 = quad->uv_grid[ij + 1].u;
+ double v2 = quad->uv_grid[ij + 1].v;
+ double duj = (u2 - u1) * rel;
+ double dvj = (v2 - v1) * rel;
+ u = u1 + duj;
+ v = v1 + dvj;
+ }
+ gp_Pnt P = S->Value(u,v);
+ SMDS_MeshNode* Nb1 = meshDS->AddNode(P.X(), P.Y(), P.Z());
+ meshDS->SetNodeOnFace(Nb1, geomFaceID, u, v);
+ NodesBRD.SetValue(next_base.Value(next_base_len), i + 1, Nb1);
+ Nb = Nb1;
+ }
+ next_par_u.SetValue(next_base_len, u);
+ next_par_v.SetValue(next_base_len, v);
+
+ // c and d
+ double u1 = (curr_par_u.Value(j) + next_par_u.Value(next_base_len - 1)) / 2.0;
+ double u2 = (curr_par_u.Value(j + 3) + next_par_u.Value(next_base_len)) / 2.0;
+ double u3 = (u2 - u1) / 3.0;
+
+ double v1 = (curr_par_v.Value(j) + next_par_v.Value(next_base_len - 1)) / 2.0;
+ double v2 = (curr_par_v.Value(j + 3) + next_par_v.Value(next_base_len)) / 2.0;
+ double v3 = (v2 - v1) / 3.0;
+
+ // c
+ u = u1 + u3;
+ v = v1 + v3;
+ gp_Pnt P = S->Value(u,v);
+ SMDS_MeshNode* Nc = meshDS->AddNode(P.X(), P.Y(), P.Z());
+ meshDS->SetNodeOnFace(Nc, geomFaceID, u, v);
+
+ // e
+ u = u1 + u3 + u3;
+ v = v1 + v3 + v3;
+ P = S->Value(u,v);
+ SMDS_MeshNode* Ne = meshDS->AddNode(P.X(), P.Y(), P.Z());
+ meshDS->SetNodeOnFace(Ne, geomFaceID, u, v);
+
+ // Faces
+ SMDS_MeshFace* F1 = myTool->AddFace(NodesBRD.Value(curr_base.Value(j + 0), i),
+ NodesBRD.Value(curr_base.Value(j + 1), i),
+ Nc,
+ NodesBRD.Value(next_base.Value(next_base_len - 1), i + 1));
+ if (F1) meshDS->SetMeshElementOnShape(F1, geomFaceID);
+
+ SMDS_MeshFace* F2 = myTool->AddFace(NodesBRD.Value(curr_base.Value(j + 1), i),
+ NodesBRD.Value(curr_base.Value(j + 2), i),
+ Ne, Nc);
+ if (F2) meshDS->SetMeshElementOnShape(F2, geomFaceID);
+
+ SMDS_MeshFace* F4 = myTool->AddFace(NodesBRD.Value(curr_base.Value(j + 2), i),
+ NodesBRD.Value(curr_base.Value(j + 3), i),
+ Nb, Ne);
+ if (F4) meshDS->SetMeshElementOnShape(F4, geomFaceID);
+
+ SMDS_MeshFace* F5 = myTool->AddFace(Nc, Ne, Nb,
+ NodesBRD.Value(next_base.Value(next_base_len - 1), i + 1));
+ if (F5) meshDS->SetMeshElementOnShape(F5, geomFaceID);
+
+ j += 3;
+
+ // not reduced middle elements
+ if (icol < nb_col) {
+ if (remainder > 0 && icol == nb_col - 1 && i > remainder / 2)
+ // pass middle elements before stopped short "column"
+ break;
+
+ int free_add = free_middle;
+ if (remainder > 0 && icol == nb_col - 1)
+ // next "column" is short
+ free_add -= (nr - 1) - (remainder / 2);
+
+ for (int imiddle = 1; imiddle <= free_add; imiddle++) {
+ // f (i + 1, j + imiddle)
+ const SMDS_MeshNode* Nf;
+ double u,v;
+ next_base.SetValue(++next_base_len, curr_base.Value(j + imiddle));
+ if (i + 1 == nr) { // top
+ Nf = uv_et[next_base_len - 1].node;
+ NodesBRD.SetValue(next_base.Value(next_base_len), i + 1, Nf);
+ u = uv_et[next_base_len - 1].u;
+ v = uv_et[next_base_len - 1].v;
+ }
+ else if (j + imiddle == curr_base_len) { // right
+ Nf = NodesBRD.Value(next_base.Value(next_base_len), i + 1);
+ u = uv_er[i].u;
+ v = uv_er[i].v;
+ }
+ else {
+ {
+ double rel = double(next_base_len - 1) * double(nt - 1) / double(nb_next - 1) + 1;
+ int nearest_node_j = (int)rel;
+ rel -= nearest_node_j;
+ int ij = (i + 1 - 1) * nt + (nearest_node_j - 1);
+ double u1 = quad->uv_grid[ij].u;
+ double v1 = quad->uv_grid[ij].v;
+ double u2 = quad->uv_grid[ij + 1].u;
+ double v2 = quad->uv_grid[ij + 1].v;
+ double duj = (u2 - u1) * rel;
+ double dvj = (v2 - v1) * rel;
+ u = u1 + duj;
+ v = v1 + dvj;
+ }
+ gp_Pnt P = S->Value(u,v);
+ SMDS_MeshNode* Nf1 = meshDS->AddNode(P.X(), P.Y(), P.Z());
+ meshDS->SetNodeOnFace(Nf1, geomFaceID, u, v);
+ NodesBRD.SetValue(next_base.Value(next_base_len), i + 1, Nf1);
+ Nf = Nf1;
+ }
+ next_par_u.SetValue(next_base_len, u);
+ next_par_v.SetValue(next_base_len, v);
+ SMDS_MeshFace* F1 = myTool->AddFace(NodesBRD.Value(curr_base.Value(j - 1 + imiddle), i),
+ NodesBRD.Value(curr_base.Value(j + imiddle), i),
+ NodesBRD.Value(next_base.Value(next_base_len), i + 1),
+ NodesBRD.Value(next_base.Value(next_base_len - 1), i + 1));
+ if (F1) meshDS->SetMeshElementOnShape(F1, geomFaceID);
+ }
+ j += free_add;
+ }
+ }
+
+ // not reduced right elements
+ for (; j < curr_base_len; j++) {
+ // f (i + 1, j + 1)
+ const SMDS_MeshNode* Nf;
+ double u,v;
+ next_base.SetValue(++next_base_len, curr_base.Value(j + 1));
+ if (i + 1 == nr) { // top
+ Nf = uv_et[next_base_len - 1].node;
+ NodesBRD.SetValue(next_base.Value(next_base_len), i + 1, Nf);
+ u = uv_et[next_base_len - 1].u;
+ v = uv_et[next_base_len - 1].v;
+ }
+ else if (j + 1 == curr_base_len) { // right
+ Nf = NodesBRD.Value(next_base.Value(next_base_len), i + 1);
+ u = uv_er[i].u;
+ v = uv_er[i].v;
+ }
+ else {
+ {
+ double rel = double(next_base_len - 1) * double(nt - 1) / double(nb_next - 1) + 1;
+ int nearest_node_j = (int)rel;
+ rel -= nearest_node_j;
+ int ij = (i + 1 - 1) * nt + (nearest_node_j - 1);
+ double u1 = quad->uv_grid[ij].u;
+ double v1 = quad->uv_grid[ij].v;
+ double u2 = quad->uv_grid[ij + 1].u;
+ double v2 = quad->uv_grid[ij + 1].v;
+ double duj = (u2 - u1) * rel;
+ double dvj = (v2 - v1) * rel;
+ u = u1 + duj;
+ v = v1 + dvj;
+ }
+ gp_Pnt P = S->Value(u,v);
+ SMDS_MeshNode* Nf1 = meshDS->AddNode(P.X(), P.Y(), P.Z());
+ meshDS->SetNodeOnFace(Nf1, geomFaceID, u, v);
+ NodesBRD.SetValue(next_base.Value(next_base_len), i + 1, Nf1);
+ Nf = Nf1;
+ }
+ next_par_u.SetValue(next_base_len, u);
+ next_par_v.SetValue(next_base_len, v);
+ SMDS_MeshFace* F1 = myTool->AddFace(NodesBRD.Value(curr_base.Value(j), i),
+ NodesBRD.Value(curr_base.Value(j + 1), i),
+ NodesBRD.Value(next_base.Value(next_base_len), i + 1),
+ NodesBRD.Value(next_base.Value(next_base_len - 1), i + 1));
+ if (F1) meshDS->SetMeshElementOnShape(F1, geomFaceID);
+ }
+
+ curr_base_len = next_base_len;
+ curr_base = next_base;
+ curr_par_u = next_par_u;
+ curr_par_v = next_par_v;
+ next_base_len = 0;
+ }
+ } // end "linear" simple reduce "31"
+ else {
+ }
+ } // end Simple Reduce implementation
+
+ bool isOk = true;
+ return isOk;
}