bool NETGENPlugin_NETGEN_3D::Evaluate(SMESH_Mesh& aMesh,
const TopoDS_Shape& aShape,
MapShapeNbElems& aResMap)
{
int nbtri = 0, nbqua = 0;
double fullArea = 0.0;
for (TopExp_Explorer exp(aShape, TopAbs_FACE); exp.More(); exp.Next()) {
TopoDS_Face F = TopoDS::Face( exp.Current() );
SMESH_subMesh *sm = aMesh.GetSubMesh(F);
MapShapeNbElemsItr anIt = aResMap.find(sm);
if( anIt==aResMap.end() ) {
SMESH_ComputeErrorPtr& smError = sm->GetComputeError();
smError.reset( new SMESH_ComputeError(COMPERR_ALGO_FAILED,"Submesh can not be evaluated",this));
return false;
}
std::vector<int> aVec = (*anIt).second;
nbtri += Max(aVec[SMDSEntity_Triangle],aVec[SMDSEntity_Quad_Triangle]);
nbqua += Max(aVec[SMDSEntity_Quadrangle],aVec[SMDSEntity_Quad_Quadrangle]);
GProp_GProps G;
BRepGProp::SurfaceProperties(F,G);
double anArea = G.Mass();
fullArea += anArea;
}
// collect info from edges
int nb0d_e = 0, nb1d_e = 0;
bool IsQuadratic = false;
bool IsFirst = true;
TopTools_MapOfShape tmpMap;
for (TopExp_Explorer exp(aShape, TopAbs_EDGE); exp.More(); exp.Next()) {
TopoDS_Edge E = TopoDS::Edge(exp.Current());
if( tmpMap.Contains(E) )
continue;
tmpMap.Add(E);
SMESH_subMesh *aSubMesh = aMesh.GetSubMesh(exp.Current());
MapShapeNbElemsItr anIt = aResMap.find(aSubMesh);
if( anIt==aResMap.end() ) {
SMESH_ComputeErrorPtr& smError = aSubMesh->GetComputeError();
smError.reset( new SMESH_ComputeError(COMPERR_ALGO_FAILED,
"Submesh can not be evaluated",this));
return false;
}
std::vector<int> aVec = (*anIt).second;
nb0d_e += aVec[SMDSEntity_Node];
nb1d_e += Max(aVec[SMDSEntity_Edge],aVec[SMDSEntity_Quad_Edge]);
if(IsFirst) {
IsQuadratic = (aVec[SMDSEntity_Quad_Edge] > aVec[SMDSEntity_Edge]);
IsFirst = false;
}
}
tmpMap.Clear();
double ELen_face = sqrt(2.* ( fullArea/(nbtri+nbqua*2) ) / sqrt(3.0) );
double ELen_vol = pow( 72, 1/6. ) * pow( _maxElementVolume, 1/3. );
double ELen = Min(ELen_vol,ELen_face*2);
GProp_GProps G;
BRepGProp::VolumeProperties(aShape,G);
double aVolume = G.Mass();
double tetrVol = 0.1179*ELen*ELen*ELen;
double CoeffQuality = 0.9;
int nbVols = (int)aVolume/tetrVol/CoeffQuality;
int nb1d_f = (nbtri*3 + nbqua*4 - nb1d_e) / 2;
int nb1d_in = (int) ( nbVols*6 - nb1d_e - nb1d_f ) / 5;
std::vector<int> aVec(SMDSEntity_Last);
for(int i=SMDSEntity_Node; i<SMDSEntity_Last; i++) aVec[i]=0;
if( IsQuadratic ) {
aVec[SMDSEntity_Node] = nb1d_in/6 + 1 + nb1d_in;
aVec[SMDSEntity_Quad_Tetra] = nbVols - nbqua*2;
aVec[SMDSEntity_Quad_Pyramid] = nbqua;
}
else {
aVec[SMDSEntity_Node] = nb1d_in/6 + 1;
aVec[SMDSEntity_Tetra] = nbVols - nbqua*2;
aVec[SMDSEntity_Pyramid] = nbqua;
}
SMESH_subMesh *sm = aMesh.GetSubMesh(aShape);
aResMap.insert(std::make_pair(sm,aVec));
return true;
}
//=============================================================================
bool NETGENPlugin_Mesher::Evaluate(MapShapeNbElems& aResMap)
{
#ifdef WNT
netgen::MeshingParameters& mparams = netgen::GlobalMeshingParameters();
#else
netgen::MeshingParameters& mparams = netgen::mparam;
#endif
// -------------------------
// Prepare OCC geometry
// -------------------------
netgen::OCCGeometry occgeo;
list< SMESH_subMesh* > meshedSM;
PrepareOCCgeometry( occgeo, _shape, *_mesh, &meshedSM );
bool tooManyElems = false;
const int hugeNb = std::numeric_limits<int>::max() / 100;
// ----------------
// evaluate 1D
// ----------------
// pass 1D simple parameters to NETGEN
int nbs = 0;
if ( _simpleHyp ) {
if ( int nbSeg = _simpleHyp->GetNumberOfSegments() ) {
nbs = nbSeg;
// nb of segments
mparams.segmentsperedge = nbSeg + 0.1;
mparams.maxh = occgeo.boundingbox.Diam();
mparams.grading = 0.01;
}
else {
// segment length
mparams.segmentsperedge = 1;
mparams.maxh = _simpleHyp->GetLocalLength();
}
}
TopTools_DataMapOfShapeInteger EdgesMap;
double fullLen = 0.0;
double fullNbSeg = 0;
for (TopExp_Explorer exp(_shape, TopAbs_EDGE); exp.More(); exp.Next()) {
TopoDS_Edge E = TopoDS::Edge( exp.Current() );
if( EdgesMap.IsBound(E) )
continue;
SMESH_subMesh *sm = _mesh->GetSubMesh(E);
std::vector<int> aVec(SMDSEntity_Last, 0);
double aLen = SMESH_Algo::EdgeLength(E);
fullLen += aLen;
int nb1d = nbs;
tooManyElems = ( aLen/hugeNb > mparams.maxh );
if(nb1d==0 && !tooManyElems) {
nb1d = (int)( aLen/mparams.maxh + 1 );
}
if ( tooManyElems ) // avoid FPE
{
aVec[SMDSEntity_Node] = hugeNb;
aVec[ mparams.secondorder > 0 ? SMDSEntity_Quad_Edge : SMDSEntity_Edge] = hugeNb;
}
else
{
fullNbSeg += nb1d;
if( mparams.secondorder > 0 ) {
aVec[SMDSEntity_Node] = 2*nb1d - 1;
aVec[SMDSEntity_Quad_Edge] = nb1d;
}
else {
aVec[SMDSEntity_Node] = nb1d - 1;
aVec[SMDSEntity_Edge] = nb1d;
}
}
aResMap.insert(std::make_pair(sm,aVec));
EdgesMap.Bind(E,nb1d);
}
// ----------------
// evaluate 2D
// ----------------
if ( _simpleHyp ) {
if ( double area = _simpleHyp->GetMaxElementArea() ) {
// face area
mparams.maxh = sqrt(2. * area/sqrt(3.0));
mparams.grading = 0.4; // moderate size growth
}
else {
// length from edges
mparams.maxh = fullLen/fullNbSeg;
mparams.grading = 0.2; // slow size growth
}
mparams.maxh = min( mparams.maxh, occgeo.boundingbox.Diam()/2 );
}
for (TopExp_Explorer exp(_shape, TopAbs_FACE); exp.More(); exp.Next())
{
TopoDS_Face F = TopoDS::Face( exp.Current() );
SMESH_subMesh *sm = _mesh->GetSubMesh(F);
GProp_GProps G;
BRepGProp::SurfaceProperties(F,G);
double anArea = G.Mass();
tooManyElems = tooManyElems || ( anArea/hugeNb > mparams.maxh*mparams.maxh );
int nb1d = 0;
if ( !tooManyElems )
for (TopExp_Explorer exp1(F,TopAbs_EDGE); exp1.More(); exp1.Next())
nb1d += EdgesMap.Find(exp1.Current());
int nbFaces = tooManyElems ? hugeNb : int( 4*anArea / mparams.maxh*mparams.maxh*sqrt(3.));
int nbNodes = tooManyElems ? hugeNb : (( nbFaces*3 - (nb1d-1)*2 ) / 6 + 1 );
std::vector<int> aVec(SMDSEntity_Last, 0);
if( mparams.secondorder > 0 ) {
int nb1d_in = (nbFaces*3 - nb1d) / 2;
aVec[SMDSEntity_Node] = nbNodes + nb1d_in;
aVec[SMDSEntity_Quad_Triangle] = nbFaces;
}
else {
aVec[SMDSEntity_Node] = nbNodes;
aVec[SMDSEntity_Triangle] = nbFaces;
}
aResMap.insert(std::make_pair(sm,aVec));
}
// ----------------
// evaluate 3D
// ----------------
if(_isVolume) {
// pass 3D simple parameters to NETGEN
const NETGENPlugin_SimpleHypothesis_3D* simple3d =
dynamic_cast< const NETGENPlugin_SimpleHypothesis_3D* > ( _simpleHyp );
if ( simple3d ) {
if ( double vol = simple3d->GetMaxElementVolume() ) {
// max volume
mparams.maxh = pow( 72, 1/6. ) * pow( vol, 1/3. );
mparams.maxh = min( mparams.maxh, occgeo.boundingbox.Diam()/2 );
}
else {
// using previous length from faces
}
mparams.grading = 0.4;
}
GProp_GProps G;
BRepGProp::VolumeProperties(_shape,G);
double aVolume = G.Mass();
double tetrVol = 0.1179*mparams.maxh*mparams.maxh*mparams.maxh;
tooManyElems = tooManyElems || ( aVolume/hugeNb > tetrVol );
int nbVols = tooManyElems ? hugeNb : int(aVolume/tetrVol);
int nb1d_in = int(( nbVols*6 - fullNbSeg ) / 6 );
std::vector<int> aVec(SMDSEntity_Last, 0 );
if ( tooManyElems ) // avoid FPE
{
aVec[SMDSEntity_Node] = hugeNb;
aVec[ mparams.secondorder > 0 ? SMDSEntity_Quad_Tetra : SMDSEntity_Tetra] = hugeNb;
}
else
{
if( mparams.secondorder > 0 ) {
aVec[SMDSEntity_Node] = nb1d_in/3 + 1 + nb1d_in;
aVec[SMDSEntity_Quad_Tetra] = nbVols;
}
else {
aVec[SMDSEntity_Node] = nb1d_in/3 + 1;
aVec[SMDSEntity_Tetra] = nbVols;
}
}
SMESH_subMesh *sm = _mesh->GetSubMesh(_shape);
aResMap.insert(std::make_pair(sm,aVec));
}
return true;
}
bool StdMeshers_RadialPrism_3D::Evaluate(SMESH_Mesh& aMesh,
const TopoDS_Shape& aShape,
MapShapeNbElems& aResMap)
{
// get 2 shells
TopoDS_Solid solid = TopoDS::Solid( aShape );
TopoDS_Shell outerShell = BRepClass3d::OuterShell( solid );
TopoDS_Shape innerShell;
int nbShells = 0;
for ( TopoDS_Iterator It (solid); It.More(); It.Next(), ++nbShells )
if ( !outerShell.IsSame( It.Value() ))
innerShell = It.Value();
if ( nbShells != 2 ) {
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;
}
// Associate sub-shapes of the shells
ProjectionUtils::TShapeShapeMap shape2ShapeMap;
if ( !ProjectionUtils::FindSubShapeAssociation( outerShell, &aMesh,
innerShell, &aMesh,
shape2ShapeMap) ) {
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;
}
// get info for outer shell
int nb0d_Out=0, nb2d_3_Out=0, nb2d_4_Out=0;
//TopTools_SequenceOfShape FacesOut;
for (TopExp_Explorer exp(outerShell, TopAbs_FACE); exp.More(); exp.Next()) {
//FacesOut.Append(exp.Current());
SMESH_subMesh *aSubMesh = aMesh.GetSubMesh(exp.Current());
MapShapeNbElemsItr anIt = aResMap.find(aSubMesh);
std::vector<int> aVec = (*anIt).second;
nb0d_Out += aVec[SMDSEntity_Node];
nb2d_3_Out += Max(aVec[SMDSEntity_Triangle],aVec[SMDSEntity_Quad_Triangle]);
nb2d_4_Out += Max(aVec[SMDSEntity_Quadrangle],aVec[SMDSEntity_Quad_Quadrangle]);
}
int nb1d_Out = 0;
TopTools_MapOfShape tmpMap;
for (TopExp_Explorer exp(outerShell, TopAbs_EDGE); exp.More(); exp.Next()) {
if( tmpMap.Contains( exp.Current() ) )
continue;
tmpMap.Add( exp.Current() );
SMESH_subMesh *aSubMesh = aMesh.GetSubMesh(exp.Current());
MapShapeNbElemsItr anIt = aResMap.find(aSubMesh);
std::vector<int> aVec = (*anIt).second;
nb0d_Out += aVec[SMDSEntity_Node];
nb1d_Out += Max(aVec[SMDSEntity_Edge],aVec[SMDSEntity_Quad_Edge]);
}
tmpMap.Clear();
for (TopExp_Explorer exp(outerShell, TopAbs_VERTEX); exp.More(); exp.Next()) {
if( tmpMap.Contains( exp.Current() ) )
continue;
tmpMap.Add( exp.Current() );
nb0d_Out++;
}
// get info for inner shell
int nb0d_In=0, nb2d_3_In=0, nb2d_4_In=0;
//TopTools_SequenceOfShape FacesIn;
for (TopExp_Explorer exp(innerShell, TopAbs_FACE); exp.More(); exp.Next()) {
//FacesIn.Append(exp.Current());
SMESH_subMesh *aSubMesh = aMesh.GetSubMesh(exp.Current());
MapShapeNbElemsItr anIt = aResMap.find(aSubMesh);
std::vector<int> aVec = (*anIt).second;
nb0d_In += aVec[SMDSEntity_Node];
nb2d_3_In += Max(aVec[SMDSEntity_Triangle],aVec[SMDSEntity_Quad_Triangle]);
nb2d_4_In += Max(aVec[SMDSEntity_Quadrangle],aVec[SMDSEntity_Quad_Quadrangle]);
}
int nb1d_In = 0;
tmpMap.Clear();
bool IsQuadratic = false;
bool IsFirst = true;
for (TopExp_Explorer exp(innerShell, TopAbs_EDGE); exp.More(); exp.Next()) {
if( tmpMap.Contains( exp.Current() ) )
continue;
tmpMap.Add( exp.Current() );
SMESH_subMesh *aSubMesh = aMesh.GetSubMesh(exp.Current());
MapShapeNbElemsItr anIt = aResMap.find(aSubMesh);
std::vector<int> aVec = (*anIt).second;
nb0d_In += aVec[SMDSEntity_Node];
nb1d_In += Max(aVec[SMDSEntity_Edge],aVec[SMDSEntity_Quad_Edge]);
if(IsFirst) {
IsQuadratic = (aVec[SMDSEntity_Quad_Edge] > aVec[SMDSEntity_Edge]);
IsFirst = false;
}
}
tmpMap.Clear();
for (TopExp_Explorer exp(innerShell, TopAbs_VERTEX); exp.More(); exp.Next()) {
if( tmpMap.Contains( exp.Current() ) )
continue;
tmpMap.Add( exp.Current() );
nb0d_In++;
}
bool IsOK = (nb0d_Out==nb0d_In) && (nb1d_Out==nb1d_In) &&
(nb2d_3_Out==nb2d_3_In) && (nb2d_4_Out==nb2d_4_In);
if(!IsOK) {
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;
}
int nbLayers = 0;
if( myNbLayerHypo ) {
nbLayers = myNbLayerHypo->GetNumberOfLayers();
}
if ( myDistributionHypo ) {
if ( !myDistributionHypo->GetLayerDistribution() ) {
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;
}
TopExp_Explorer exp(outerShell, TopAbs_VERTEX);
TopoDS_Vertex Vout = TopoDS::Vertex(exp.Current());
TopoDS_Vertex Vin = TopoDS::Vertex( shape2ShapeMap(Vout) );
if ( myLayerPositions.empty() ) {
gp_Pnt pIn = BRep_Tool::Pnt(Vin);
gp_Pnt pOut = BRep_Tool::Pnt(Vout);
computeLayerPositions( pIn, pOut );
}
nbLayers = myLayerPositions.size() + 1;
}
std::vector<int> aResVec(SMDSEntity_Last);
for(int i=SMDSEntity_Node; i<SMDSEntity_Last; i++) aResVec[i] = 0;
if(IsQuadratic) {
aResVec[SMDSEntity_Quad_Penta] = nb2d_3_Out * nbLayers;
aResVec[SMDSEntity_Quad_Hexa] = nb2d_4_Out * nbLayers;
int nb1d = ( nb2d_3_Out*3 + nb2d_4_Out*4 ) / 2;
aResVec[SMDSEntity_Node] = nb0d_Out * ( 2*nbLayers - 1 ) - nb1d * nbLayers;
}
else {
aResVec[SMDSEntity_Node] = nb0d_Out * ( nbLayers - 1 );
aResVec[SMDSEntity_Penta] = nb2d_3_Out * nbLayers;
aResVec[SMDSEntity_Hexa] = nb2d_4_Out * nbLayers;
}
SMESH_subMesh * sm = aMesh.GetSubMesh(aShape);
aResMap.insert(std::make_pair(sm,aResVec));
return true;
}
bool StdMeshers_RadialQuadrangle_1D2D::Evaluate(SMESH_Mesh& aMesh,
const TopoDS_Shape& aShape,
MapShapeNbElems& aResMap)
{
if( aShape.ShapeType() != TopAbs_FACE ) {
return false;
}
SMESH_subMesh * smf = aMesh.GetSubMesh(aShape);
MapShapeNbElemsItr anIt = aResMap.find(smf);
if( anIt != aResMap.end() ) {
return false;
}
myLayerPositions.clear();
gp_Pnt P0(0,0,0);
gp_Pnt P1(100,0,0);
computeLayerPositions(P0,P1);
TopoDS_Edge E1,E2,E3;
Handle(Geom_Curve) C1,C2,C3;
double f1,l1,f2,l2,f3,l3;
int nbe = 0;
TopExp_Explorer exp;
for ( exp.Init( aShape, TopAbs_EDGE ); exp.More(); exp.Next() ) {
nbe++;
TopoDS_Edge E = TopoDS::Edge( exp.Current() );
if(nbe==1) {
E1 = E;
C1 = BRep_Tool::Curve(E,f1,l1);
}
else if(nbe==2) {
E2 = E;
C2 = BRep_Tool::Curve(E,f2,l2);
}
else if(nbe==3) {
E3 = E;
C3 = BRep_Tool::Curve(E,f3,l3);
}
}
TopoDS_Edge CircEdge, LinEdge1, LinEdge2;
int nb0d=0, nb2d_tria=0, nb2d_quad=0;
bool isQuadratic = false;
if(nbe==1) {
// C1 must be a circle
Handle(Geom_Circle) aCirc = Handle(Geom_Circle)::DownCast(C1);
if( !aCirc.IsNull() ) {
bool ok = _gen->Evaluate( aMesh, CircEdge, aResMap );
if(ok) {
SMESH_subMesh * sm = aMesh.GetSubMesh(CircEdge);
MapShapeNbElemsItr anIt = aResMap.find(sm);
vector<int> aVec = (*anIt).second;
isQuadratic = aVec[SMDSEntity_Quad_Edge]>aVec[SMDSEntity_Edge];
if(isQuadratic) {
// main nodes
nb0d = (aVec[SMDSEntity_Node]+1) * myLayerPositions.size();
// radial medium nodes
nb0d += (aVec[SMDSEntity_Node]+1) * (myLayerPositions.size()+1);
// other medium nodes
nb0d += (aVec[SMDSEntity_Node]+1) * myLayerPositions.size();
}
else {
nb0d = (aVec[SMDSEntity_Node]+1) * myLayerPositions.size();
}
nb2d_tria = aVec[SMDSEntity_Node] + 1;
nb2d_quad = nb0d;
}
}
}
else if(nbe==2) {
// one curve must be a half of circle and other curve must be
// a segment of line
Handle(Geom_TrimmedCurve) tc = Handle(Geom_TrimmedCurve)::DownCast(C1);
while( !tc.IsNull() ) {
C1 = tc->BasisCurve();
tc = Handle(Geom_TrimmedCurve)::DownCast(C1);
}
tc = Handle(Geom_TrimmedCurve)::DownCast(C2);
while( !tc.IsNull() ) {
C2 = tc->BasisCurve();
tc = Handle(Geom_TrimmedCurve)::DownCast(C2);
}
Handle(Geom_Circle) aCirc = Handle(Geom_Circle)::DownCast(C1);
Handle(Geom_Line) aLine = Handle(Geom_Line)::DownCast(C2);
CircEdge = E1;
LinEdge1 = E2;
double fp = f1;
double lp = l1;
if( aCirc.IsNull() ) {
aCirc = Handle(Geom_Circle)::DownCast(C2);
CircEdge = E2;
LinEdge1 = E1;
fp = f2;
lp = l2;
aLine = Handle(Geom_Line)::DownCast(C3);
}
bool ok = !aCirc.IsNull() && !aLine.IsNull();
if( fabs(fabs(lp-fp)-M_PI) > Precision::Confusion() ) {
// not half of circle
ok = false;
}
SMESH_subMesh* sm1 = aMesh.GetSubMesh(LinEdge1);
MapShapeNbElemsItr anIt = aResMap.find(sm1);
if( anIt!=aResMap.end() ) {
ok = false;
}
if(ok) {
ok = _gen->Evaluate( aMesh, CircEdge, aResMap );
}
if(ok) {
SMESH_subMesh * sm = aMesh.GetSubMesh(CircEdge);
MapShapeNbElemsItr anIt = aResMap.find(sm);
vector<int> aVec = (*anIt).second;
isQuadratic = aVec[SMDSEntity_Quad_Edge]>aVec[SMDSEntity_Edge];
if(isQuadratic) {
// main nodes
nb0d = aVec[SMDSEntity_Node] * myLayerPositions.size();
// radial medium nodes
nb0d += aVec[SMDSEntity_Node] * (myLayerPositions.size()+1);
// other medium nodes
nb0d += (aVec[SMDSEntity_Node]+1) * myLayerPositions.size();
}
else {
nb0d = aVec[SMDSEntity_Node] * myLayerPositions.size();
}
nb2d_tria = aVec[SMDSEntity_Node] + 1;
nb2d_quad = nb2d_tria * myLayerPositions.size();
// add evaluation for edges
vector<int> aResVec(SMDSEntity_Last);
for(int i=SMDSEntity_Node; i<SMDSEntity_Last; i++) aResVec[i] = 0;
if(isQuadratic) {
aResVec[SMDSEntity_Node] = 4*myLayerPositions.size() + 3;
aResVec[SMDSEntity_Quad_Edge] = 2*myLayerPositions.size() + 2;
}
else {
aResVec[SMDSEntity_Node] = 2*myLayerPositions.size() + 1;
aResVec[SMDSEntity_Edge] = 2*myLayerPositions.size() + 2;
}
sm = aMesh.GetSubMesh(LinEdge1);
aResMap.insert(make_pair(sm,aResVec));
}
}
else { // nbe==3
// one curve must be a part of circle and other curves must be
// segments of line
Handle(Geom_TrimmedCurve) tc = Handle(Geom_TrimmedCurve)::DownCast(C1);
while( !tc.IsNull() ) {
C1 = tc->BasisCurve();
tc = Handle(Geom_TrimmedCurve)::DownCast(C1);
}
tc = Handle(Geom_TrimmedCurve)::DownCast(C2);
while( !tc.IsNull() ) {
C2 = tc->BasisCurve();
tc = Handle(Geom_TrimmedCurve)::DownCast(C2);
}
tc = Handle(Geom_TrimmedCurve)::DownCast(C3);
while( !tc.IsNull() ) {
C3 = tc->BasisCurve();
tc = Handle(Geom_TrimmedCurve)::DownCast(C3);
}
Handle(Geom_Circle) aCirc = Handle(Geom_Circle)::DownCast(C1);
Handle(Geom_Line) aLine1 = Handle(Geom_Line)::DownCast(C2);
Handle(Geom_Line) aLine2 = Handle(Geom_Line)::DownCast(C3);
CircEdge = E1;
LinEdge1 = E2;
LinEdge2 = E3;
double fp = f1;
double lp = l1;
if( aCirc.IsNull() ) {
aCirc = Handle(Geom_Circle)::DownCast(C2);
CircEdge = E2;
LinEdge1 = E3;
LinEdge2 = E1;
fp = f2;
lp = l2;
aLine1 = Handle(Geom_Line)::DownCast(C3);
aLine2 = Handle(Geom_Line)::DownCast(C1);
if( aCirc.IsNull() ) {
aCirc = Handle(Geom_Circle)::DownCast(C3);
CircEdge = E3;
LinEdge1 = E1;
LinEdge2 = E2;
fp = f3;
lp = l3;
aLine1 = Handle(Geom_Line)::DownCast(C1);
aLine2 = Handle(Geom_Line)::DownCast(C2);
}
}
bool ok = !aCirc.IsNull() && !aLine1.IsNull() && !aLine1.IsNull();
SMESH_subMesh* sm = aMesh.GetSubMesh(LinEdge1);
MapShapeNbElemsItr anIt = aResMap.find(sm);
if( anIt!=aResMap.end() ) {
ok = false;
}
sm = aMesh.GetSubMesh(LinEdge2);
anIt = aResMap.find(sm);
if( anIt!=aResMap.end() ) {
ok = false;
}
if(ok) {
ok = _gen->Evaluate( aMesh, CircEdge, aResMap );
}
if(ok) {
SMESH_subMesh * sm = aMesh.GetSubMesh(CircEdge);
MapShapeNbElemsItr anIt = aResMap.find(sm);
vector<int> aVec = (*anIt).second;
isQuadratic = aVec[SMDSEntity_Quad_Edge]>aVec[SMDSEntity_Edge];
if(isQuadratic) {
// main nodes
nb0d = aVec[SMDSEntity_Node] * myLayerPositions.size();
// radial medium nodes
nb0d += aVec[SMDSEntity_Node] * (myLayerPositions.size()+1);
// other medium nodes
nb0d += (aVec[SMDSEntity_Node]+1) * myLayerPositions.size();
}
else {
nb0d = aVec[SMDSEntity_Node] * myLayerPositions.size();
}
nb2d_tria = aVec[SMDSEntity_Node] + 1;
nb2d_quad = nb2d_tria * myLayerPositions.size();
// add evaluation for edges
vector<int> aResVec(SMDSEntity_Last);
for(int i=SMDSEntity_Node; i<SMDSEntity_Last; i++) aResVec[i] = 0;
if(isQuadratic) {
aResVec[SMDSEntity_Node] = 2*myLayerPositions.size() + 1;
aResVec[SMDSEntity_Quad_Edge] = myLayerPositions.size() + 1;
}
else {
aResVec[SMDSEntity_Node] = myLayerPositions.size();
aResVec[SMDSEntity_Edge] = myLayerPositions.size() + 1;
}
sm = aMesh.GetSubMesh(LinEdge1);
aResMap.insert(make_pair(sm,aResVec));
sm = aMesh.GetSubMesh(LinEdge2);
aResMap.insert(make_pair(sm,aResVec));
}
}
vector<int> aResVec(SMDSEntity_Last);
for(int i=SMDSEntity_Node; i<SMDSEntity_Last; i++) aResVec[i] = 0;
SMESH_subMesh * sm = aMesh.GetSubMesh(aShape);
//cout<<"nb0d = "<<nb0d<<" nb2d_tria = "<<nb2d_tria<<" nb2d_quad = "<<nb2d_quad<<endl;
if(nb0d>0) {
aResVec[0] = nb0d;
if(isQuadratic) {
aResVec[SMDSEntity_Quad_Triangle] = nb2d_tria;
aResVec[SMDSEntity_Quad_Quadrangle] = nb2d_quad;
}
else {
aResVec[SMDSEntity_Triangle] = nb2d_tria;
aResVec[SMDSEntity_Quadrangle] = nb2d_quad;
}
aResMap.insert(make_pair(sm,aResVec));
return true;
}
// invalid case
aResMap.insert(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;
}
bool NETGENPlugin_NETGEN_2D_ONLY::Evaluate(SMESH_Mesh& aMesh,
const TopoDS_Shape& aShape,
MapShapeNbElems& aResMap)
{
TopoDS_Face F = TopoDS::Face(aShape);
if(F.IsNull())
return false;
// collect info from edges
int nb0d = 0, nb1d = 0;
bool IsQuadratic = false;
bool IsFirst = true;
double fullLen = 0.0;
TopTools_MapOfShape tmpMap;
for (TopExp_Explorer exp(F, TopAbs_EDGE); exp.More(); exp.Next()) {
TopoDS_Edge E = TopoDS::Edge(exp.Current());
if( tmpMap.Contains(E) )
continue;
tmpMap.Add(E);
SMESH_subMesh *aSubMesh = aMesh.GetSubMesh(exp.Current());
MapShapeNbElemsItr anIt = aResMap.find(aSubMesh);
if( anIt==aResMap.end() ) {
SMESH_subMesh *sm = aMesh.GetSubMesh(F);
SMESH_ComputeErrorPtr& smError = sm->GetComputeError();
smError.reset( new SMESH_ComputeError(COMPERR_ALGO_FAILED,"Submesh can not be evaluated",this));
return false;
}
std::vector<int> aVec = (*anIt).second;
nb0d += aVec[SMDSEntity_Node];
nb1d += Max(aVec[SMDSEntity_Edge],aVec[SMDSEntity_Quad_Edge]);
double aLen = SMESH_Algo::EdgeLength(E);
fullLen += aLen;
if(IsFirst) {
IsQuadratic = (aVec[SMDSEntity_Quad_Edge] > aVec[SMDSEntity_Edge]);
IsFirst = false;
}
}
tmpMap.Clear();
// compute edge length
double ELen = 0;
if (_hypLengthFromEdges || (!_hypLengthFromEdges && !_hypMaxElementArea)) {
if ( nb1d > 0 )
ELen = fullLen / nb1d;
}
if ( _hypMaxElementArea ) {
double maxArea = _hypMaxElementArea->GetMaxArea();
ELen = sqrt(2. * maxArea/sqrt(3.0));
}
GProp_GProps G;
BRepGProp::SurfaceProperties(F,G);
double anArea = G.Mass();
const int hugeNb = numeric_limits<int>::max()/10;
if ( anArea / hugeNb > ELen*ELen )
{
SMESH_subMesh *sm = aMesh.GetSubMesh(F);
SMESH_ComputeErrorPtr& smError = sm->GetComputeError();
smError.reset( new SMESH_ComputeError(COMPERR_ALGO_FAILED,"Submesh can not be evaluated.\nToo small element length",this));
return false;
}
int nbFaces = (int) ( anArea / ( ELen*ELen*sqrt(3.) / 4 ) );
int nbNodes = (int) ( ( nbFaces*3 - (nb1d-1)*2 ) / 6 + 1 );
std::vector<int> aVec(SMDSEntity_Last);
for(int i=SMDSEntity_Node; i<SMDSEntity_Last; i++) aVec[i]=0;
if( IsQuadratic ) {
aVec[SMDSEntity_Node] = nbNodes;
aVec[SMDSEntity_Quad_Triangle] = nbFaces;
}
else {
aVec[SMDSEntity_Node] = nbNodes;
aVec[SMDSEntity_Triangle] = nbFaces;
}
SMESH_subMesh *sm = aMesh.GetSubMesh(F);
aResMap.insert(std::make_pair(sm,aVec));
return true;
}
bool StdMeshers_Projection_3D::Evaluate(SMESH_Mesh& aMesh,
const TopoDS_Shape& aShape,
MapShapeNbElems& aResMap)
{
if ( !_sourceHypo )
return false;
SMESH_Mesh * srcMesh = _sourceHypo->GetSourceMesh();
SMESH_Mesh * tgtMesh = & aMesh;
if ( !srcMesh )
srcMesh = tgtMesh;
// get shell from shape3D
TopoDS_Shell srcShell, tgtShell;
TopExp_Explorer exp( _sourceHypo->GetSource3DShape(), TopAbs_SHELL );
int nbShell;
for ( nbShell = 0; exp.More(); exp.Next(), ++nbShell )
srcShell = TopoDS::Shell( exp.Current() );
if ( nbShell != 1 )
return error(COMPERR_BAD_SHAPE,
SMESH_Comment("Source shape must have 1 shell but not ") << nbShell);
exp.Init( aShape, TopAbs_SHELL );
for ( nbShell = 0; exp.More(); exp.Next(), ++nbShell )
tgtShell = TopoDS::Shell( exp.Current() );
if ( nbShell != 1 )
return error(COMPERR_BAD_SHAPE,
SMESH_Comment("Target shape must have 1 shell but not ") << nbShell);
// Check that shapes are blocks
if ( SMESH_MesherHelper::Count( tgtShell, TopAbs_FACE , 1 ) != 6 ||
SMESH_MesherHelper::Count( tgtShell, TopAbs_EDGE , 1 ) != 12 ||
SMESH_MesherHelper::Count( tgtShell, TopAbs_WIRE , 1 ) != 6 )
return error(COMPERR_BAD_SHAPE, "Target shape is not a block");
if ( SMESH_MesherHelper::Count( srcShell, TopAbs_FACE , 1 ) != 6 ||
SMESH_MesherHelper::Count( srcShell, TopAbs_EDGE , 1 ) != 12 ||
SMESH_MesherHelper::Count( srcShell, TopAbs_WIRE , 1 ) != 6 )
return error(COMPERR_BAD_SHAPE, "Source shape is not a block");
// Assure that mesh on a source shape is computed
SMESH_subMesh* srcSubMesh = srcMesh->GetSubMesh( _sourceHypo->GetSource3DShape() );
if ( !srcSubMesh->IsMeshComputed() )
return error(COMPERR_BAD_INPUT_MESH,"Source mesh not computed");
std::vector<int> aVec(SMDSEntity_Last);
for(int i=SMDSEntity_Node; i<SMDSEntity_Last; i++) aVec[i] = 0;
aVec[SMDSEntity_Node] = srcSubMesh->GetSubMeshDS()->NbNodes();
//bool quadratic = false;
SMDS_ElemIteratorPtr elemIt = srcSubMesh->GetSubMeshDS()->GetElements();
while ( elemIt->more() ) {
const SMDS_MeshElement* E = elemIt->next();
if( E->NbNodes()==4 ) {
aVec[SMDSEntity_Tetra]++;
}
else if( E->NbNodes()==5 ) {
aVec[SMDSEntity_Pyramid]++;
}
else if( E->NbNodes()==6 ) {
aVec[SMDSEntity_Penta]++;
}
else if( E->NbNodes()==8 ) {
aVec[SMDSEntity_Hexa]++;
}
else if( E->NbNodes()==10 && E->IsQuadratic() ) {
aVec[SMDSEntity_Quad_Tetra]++;
}
else if( E->NbNodes()==13 && E->IsQuadratic() ) {
aVec[SMDSEntity_Quad_Pyramid]++;
}
else if( E->NbNodes()==15 && E->IsQuadratic() ) {
aVec[SMDSEntity_Quad_Penta]++;
}
else if( E->NbNodes()==20 && E->IsQuadratic() ) {
aVec[SMDSEntity_Quad_Hexa]++;
}
else {
aVec[SMDSEntity_Polyhedra]++;
}
}
SMESH_subMesh * sm = aMesh.GetSubMesh(aShape);
aResMap.insert(std::make_pair(sm,aVec));
return true;
}
bool StdMeshers_Hexa_3D::Evaluate(SMESH_Mesh & aMesh,
const TopoDS_Shape & aShape,
MapShapeNbElems& aResMap)
{
vector < SMESH_subMesh * >meshFaces;
TopTools_SequenceOfShape aFaces;
for (TopExp_Explorer exp(aShape, TopAbs_FACE); exp.More(); exp.Next()) {
aFaces.Append(exp.Current());
SMESH_subMesh *aSubMesh = aMesh.GetSubMeshContaining(exp.Current());
ASSERT(aSubMesh);
meshFaces.push_back(aSubMesh);
}
if (meshFaces.size() != 6) {
//return error(COMPERR_BAD_SHAPE, TComm(meshFaces.size())<<" instead of 6 faces in a block");
static StdMeshers_CompositeHexa_3D compositeHexa(-10, 0, aMesh.GetGen());
return compositeHexa.Evaluate(aMesh, aShape, aResMap);
}
int i = 0;
for(; i<6; i++) {
//TopoDS_Shape aFace = meshFaces[i]->GetSubShape();
TopoDS_Shape aFace = aFaces.Value(i+1);
SMESH_Algo *algo = _gen->GetAlgo(aMesh, aFace);
if( !algo ) {
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;
}
string algoName = algo->GetName();
bool isAllQuad = false;
if (algoName == "Quadrangle_2D") {
MapShapeNbElemsItr anIt = aResMap.find(meshFaces[i]);
if( anIt == aResMap.end() ) continue;
std::vector<int> aVec = (*anIt).second;
int nbtri = Max(aVec[SMDSEntity_Triangle],aVec[SMDSEntity_Quad_Triangle]);
if( nbtri == 0 )
isAllQuad = true;
}
if ( ! isAllQuad ) {
return EvaluatePentahedralMesh(aMesh, aShape, aResMap);
}
}
// find number of 1d elems for 1 face
int nb1d = 0;
TopTools_MapOfShape Edges1;
bool IsQuadratic = false;
bool IsFirst = true;
for (TopExp_Explorer exp(aFaces.Value(1), TopAbs_EDGE); exp.More(); exp.Next()) {
Edges1.Add(exp.Current());
SMESH_subMesh *sm = aMesh.GetSubMesh(exp.Current());
if( sm ) {
MapShapeNbElemsItr anIt = aResMap.find(sm);
if( anIt == aResMap.end() ) continue;
std::vector<int> aVec = (*anIt).second;
nb1d += Max(aVec[SMDSEntity_Edge],aVec[SMDSEntity_Quad_Edge]);
if(IsFirst) {
IsQuadratic = (aVec[SMDSEntity_Quad_Edge] > aVec[SMDSEntity_Edge]);
IsFirst = false;
}
}
}
// find face opposite to 1 face
int OppNum = 0;
for(i=2; i<=6; i++) {
bool IsOpposite = true;
for(TopExp_Explorer exp(aFaces.Value(i), TopAbs_EDGE); exp.More(); exp.Next()) {
if( Edges1.Contains(exp.Current()) ) {
IsOpposite = false;
break;
}
}
if(IsOpposite) {
OppNum = i;
break;
}
}
// find number of 2d elems on side faces
int nb2d = 0;
for(i=2; i<=6; i++) {
if( i == OppNum ) continue;
MapShapeNbElemsItr anIt = aResMap.find( meshFaces[i-1] );
if( anIt == aResMap.end() ) continue;
std::vector<int> aVec = (*anIt).second;
nb2d += Max(aVec[SMDSEntity_Quadrangle],aVec[SMDSEntity_Quad_Quadrangle]);
}
MapShapeNbElemsItr anIt = aResMap.find( meshFaces[0] );
std::vector<int> aVec = (*anIt).second;
int nb2d_face0 = Max(aVec[SMDSEntity_Quadrangle],aVec[SMDSEntity_Quad_Quadrangle]);
int nb0d_face0 = aVec[SMDSEntity_Node];
std::vector<int> aResVec(SMDSEntity_Last);
for(int i=SMDSEntity_Node; i<SMDSEntity_Last; i++) aResVec[i] = 0;
if(IsQuadratic) {
aResVec[SMDSEntity_Quad_Hexa] = nb2d_face0 * ( nb2d/nb1d );
int nb1d_face0_int = ( nb2d_face0*4 - nb1d ) / 2;
aResVec[SMDSEntity_Node] = nb0d_face0 * ( 2*nb2d/nb1d - 1 ) - nb1d_face0_int * nb2d/nb1d;
}
else {
aResVec[SMDSEntity_Node] = nb0d_face0 * ( nb2d/nb1d - 1 );
aResVec[SMDSEntity_Hexa] = nb2d_face0 * ( nb2d/nb1d );
}
SMESH_subMesh * sm = aMesh.GetSubMesh(aShape);
aResMap.insert(std::make_pair(sm,aResVec));
return true;
}
