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smesh/src/StdMeshers/StdMeshers_Prism_3D.cxx
vsr 7aebb99e42 Merge from V6_main 06/03/2013
2013-03-06 13:57:01 +00:00

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// Copyright (C) 2007-2012 CEA/DEN, EDF R&D, OPEN CASCADE
//
// 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_Prism_3D.cxx
// Module : SMESH
// Created : Fri Oct 20 11:37:07 2006
// Author : Edward AGAPOV (eap)
//
#include "StdMeshers_Prism_3D.hxx"
#include "SMDS_EdgePosition.hxx"
#include "SMDS_VolumeOfNodes.hxx"
#include "SMDS_VolumeTool.hxx"
#include "SMESH_Comment.hxx"
#include "SMESH_Gen.hxx"
#include "SMESH_HypoFilter.hxx"
#include "SMESH_MesherHelper.hxx"
#include "StdMeshers_FaceSide.hxx"
#include "StdMeshers_ProjectionSource1D.hxx"
#include "StdMeshers_ProjectionSource2D.hxx"
#include "StdMeshers_ProjectionUtils.hxx"
#include "StdMeshers_Projection_1D.hxx"
#include "StdMeshers_Projection_1D2D.hxx"
#include "StdMeshers_Quadrangle_2D.hxx"
#include "utilities.h"
#include <BRepAdaptor_CompCurve.hxx>
#include <BRep_Tool.hxx>
#include <Bnd_B3d.hxx>
#include <Geom2dAdaptor_Curve.hxx>
#include <Geom2d_Line.hxx>
#include <Geom_Curve.hxx>
#include <TopExp.hxx>
#include <TopExp_Explorer.hxx>
#include <TopTools_ListIteratorOfListOfShape.hxx>
#include <TopTools_ListOfShape.hxx>
#include <TopTools_MapOfShape.hxx>
#include <TopTools_SequenceOfShape.hxx>
#include <TopoDS.hxx>
#include <gp_Ax2.hxx>
#include <gp_Ax3.hxx>
using namespace std;
#define RETURN_BAD_RESULT(msg) { MESSAGE(")-: Error: " << msg); return false; }
#define gpXYZ(n) gp_XYZ(n->X(),n->Y(),n->Z())
#define SHOWYXZ(msg, xyz) // {\
// gp_Pnt p (xyz); \
// cout << msg << " ("<< p.X() << "; " <<p.Y() << "; " <<p.Z() << ") " <<endl;\
// }
namespace TAssocTool = StdMeshers_ProjectionUtils;
typedef SMESH_Comment TCom;
enum { ID_BOT_FACE = SMESH_Block::ID_Fxy0,
ID_TOP_FACE = SMESH_Block::ID_Fxy1,
BOTTOM_EDGE = 0, TOP_EDGE, V0_EDGE, V1_EDGE, // edge IDs in face
NB_WALL_FACES = 4 }; //
namespace {
//=======================================================================
/*!
* \brief Quadrangle algorithm
*/
struct TQuadrangleAlgo : public StdMeshers_Quadrangle_2D
{
TQuadrangleAlgo(int studyId, SMESH_Gen* gen)
: StdMeshers_Quadrangle_2D( gen->GetANewId(), studyId, gen)
{
}
static StdMeshers_Quadrangle_2D* instance( SMESH_Algo* fatherAlgo,
SMESH_MesherHelper* helper=0)
{
static TQuadrangleAlgo* algo = new TQuadrangleAlgo( fatherAlgo->GetStudyId(),
fatherAlgo->GetGen() );
if ( helper &&
algo->myProxyMesh &&
algo->myProxyMesh->GetMesh() != helper->GetMesh() )
algo->myProxyMesh.reset( new SMESH_ProxyMesh( *helper->GetMesh() ));
algo->myQuadStruct.reset();
if ( helper )
algo->_quadraticMesh = helper->GetIsQuadratic();
return algo;
}
};
//=======================================================================
/*!
* \brief Algorithm projecting 1D mesh
*/
struct TProjction1dAlgo : public StdMeshers_Projection_1D
{
StdMeshers_ProjectionSource1D myHyp;
TProjction1dAlgo(int studyId, SMESH_Gen* gen)
: StdMeshers_Projection_1D( gen->GetANewId(), studyId, gen),
myHyp( gen->GetANewId(), studyId, gen)
{
StdMeshers_Projection_1D::_sourceHypo = & myHyp;
}
static TProjction1dAlgo* instance( SMESH_Algo* fatherAlgo )
{
static TProjction1dAlgo* algo = new TProjction1dAlgo( fatherAlgo->GetStudyId(),
fatherAlgo->GetGen() );
return algo;
}
};
//=======================================================================
/*!
* \brief Algorithm projecting 2D mesh
*/
struct TProjction2dAlgo : public StdMeshers_Projection_1D2D
{
StdMeshers_ProjectionSource2D myHyp;
TProjction2dAlgo(int studyId, SMESH_Gen* gen)
: StdMeshers_Projection_1D2D( gen->GetANewId(), studyId, gen),
myHyp( gen->GetANewId(), studyId, gen)
{
StdMeshers_Projection_2D::_sourceHypo = & myHyp;
}
static TProjction2dAlgo* instance( SMESH_Algo* fatherAlgo )
{
static TProjction2dAlgo* algo = new TProjction2dAlgo( fatherAlgo->GetStudyId(),
fatherAlgo->GetGen() );
return algo;
}
};
//================================================================================
/*!
* \brief Make \a botE be the BOTTOM_SIDE of \a quad.
* Return false if the BOTTOM_SIDE is composite
*/
//================================================================================
bool setBottomEdge( const TopoDS_Edge& botE,
faceQuadStruct::Ptr& quad,
const TopoDS_Shape& face)
{
quad->side[ QUAD_TOP_SIDE ]->Reverse();
quad->side[ QUAD_LEFT_SIDE ]->Reverse();
int edgeIndex = 0;
for ( size_t i = 0; i < quad->side.size(); ++i )
{
StdMeshers_FaceSide* quadSide = quad->side[i];
for ( int iE = 0; iE < quadSide->NbEdges(); ++iE )
if ( botE.IsSame( quadSide->Edge( iE )))
{
if ( quadSide->NbEdges() > 1 )
return false;
edgeIndex = i;
i = quad->side.size(); // to quit from the outer loop
break;
}
}
if ( edgeIndex != QUAD_BOTTOM_SIDE )
quad->shift( quad->side.size() - edgeIndex, /*keepUnitOri=*/false );
quad->face = TopoDS::Face( face );
return true;
}
//================================================================================
/*!
* \brief Return iterator pointing to node column for the given parameter
* \param columnsMap - node column map
* \param parameter - parameter
* \retval TParam2ColumnMap::iterator - result
*
* it returns closest left column
*/
//================================================================================
TParam2ColumnIt getColumn( const TParam2ColumnMap* columnsMap,
const double parameter )
{
TParam2ColumnIt u_col = columnsMap->upper_bound( parameter );
if ( u_col != columnsMap->begin() )
--u_col;
return u_col; // return left column
}
//================================================================================
/*!
* \brief Return nodes around given parameter and a ratio
* \param column - node column
* \param param - parameter
* \param node1 - lower node
* \param node2 - upper node
* \retval double - ratio
*/
//================================================================================
double getRAndNodes( const TNodeColumn* column,
const double param,
const SMDS_MeshNode* & node1,
const SMDS_MeshNode* & node2)
{
if ( param >= 1.0 || column->size() == 1) {
node1 = node2 = column->back();
return 0;
}
int i = int( param * ( column->size() - 1 ));
double u0 = double( i )/ double( column->size() - 1 );
double r = ( param - u0 ) * ( column->size() - 1 );
node1 = (*column)[ i ];
node2 = (*column)[ i + 1];
return r;
}
//================================================================================
/*!
* \brief Compute boundary parameters of face parts
* \param nbParts - nb of parts to split columns into
* \param columnsMap - node columns of the face to split
* \param params - computed parameters
*/
//================================================================================
void splitParams( const int nbParts,
const TParam2ColumnMap* columnsMap,
vector< double > & params)
{
params.clear();
params.reserve( nbParts + 1 );
TParam2ColumnIt last_par_col = --columnsMap->end();
double par = columnsMap->begin()->first; // 0.
double parLast = last_par_col->first;
params.push_back( par );
for ( int i = 0; i < nbParts - 1; ++ i )
{
double partSize = ( parLast - par ) / double ( nbParts - i );
TParam2ColumnIt par_col = getColumn( columnsMap, par + partSize );
if ( par_col->first == par ) {
++par_col;
if ( par_col == last_par_col ) {
while ( i < nbParts - 1 )
params.push_back( par + partSize * i++ );
break;
}
}
par = par_col->first;
params.push_back( par );
}
params.push_back( parLast ); // 1.
}
//================================================================================
/*!
* \brief Return coordinate system for z-th layer of nodes
*/
//================================================================================
gp_Ax2 getLayerCoordSys(const int z,
const vector< const TNodeColumn* >& columns,
int& xColumn)
{
// gravity center of a layer
gp_XYZ O(0,0,0);
int vertexCol = -1;
for ( int i = 0; i < columns.size(); ++i )
{
O += gpXYZ( (*columns[ i ])[ z ]);
if ( vertexCol < 0 &&
columns[ i ]->front()->GetPosition()->GetTypeOfPosition() == SMDS_TOP_VERTEX )
vertexCol = i;
}
O /= columns.size();
// Z axis
gp_Vec Z(0,0,0);
int iPrev = columns.size()-1;
for ( int i = 0; i < columns.size(); ++i )
{
gp_Vec v1( O, gpXYZ( (*columns[ iPrev ])[ z ]));
gp_Vec v2( O, gpXYZ( (*columns[ i ] )[ z ]));
Z += v1 ^ v2;
iPrev = i;
}
if ( vertexCol >= 0 )
{
O = gpXYZ( (*columns[ vertexCol ])[ z ]);
}
if ( xColumn < 0 || xColumn >= columns.size() )
{
// select a column for X dir
double maxDist = 0;
for ( int i = 0; i < columns.size(); ++i )
{
double dist = ( O - gpXYZ((*columns[ i ])[ z ])).SquareModulus();
if ( dist > maxDist )
{
xColumn = i;
maxDist = dist;
}
}
}
// X axis
gp_Vec X( O, gpXYZ( (*columns[ xColumn ])[ z ]));
return gp_Ax2( O, Z, X);
}
//================================================================================
/*!
* \brief Removes submeshes that are or can be meshed with regular grid from given list
* \retval int - nb of removed submeshes
*/
//================================================================================
int removeQuasiQuads(list< SMESH_subMesh* >& notQuadSubMesh,
SMESH_MesherHelper* helper,
StdMeshers_Quadrangle_2D* quadAlgo)
{
int nbRemoved = 0;
//SMESHDS_Mesh* mesh = notQuadSubMesh.front()->GetFather()->GetMeshDS();
list< SMESH_subMesh* >::iterator smIt = notQuadSubMesh.begin();
while ( smIt != notQuadSubMesh.end() )
{
SMESH_subMesh* faceSm = *smIt;
SMESHDS_SubMesh* faceSmDS = faceSm->GetSubMeshDS();
int nbQuads = faceSmDS ? faceSmDS->NbElements() : 0;
bool toRemove;
if ( nbQuads > 0 )
toRemove = helper->IsStructured( faceSm );
else
toRemove = quadAlgo->CheckNbEdges( *helper->GetMesh(),
faceSm->GetSubShape() );
nbRemoved += toRemove;
if ( toRemove )
smIt = notQuadSubMesh.erase( smIt );
else
++smIt;
}
return nbRemoved;
}
} // namespace
//=======================================================================
//function : StdMeshers_Prism_3D
//purpose :
//=======================================================================
StdMeshers_Prism_3D::StdMeshers_Prism_3D(int hypId, int studyId, SMESH_Gen* gen)
:SMESH_3D_Algo(hypId, studyId, gen)
{
_name = "Prism_3D";
_shapeType = (1 << TopAbs_SOLID); // 1 bit per shape type
_onlyUnaryInput = false; // accept all SOLIDs at once
_requireDiscreteBoundary = false; // mesh FACEs and EDGEs by myself
_supportSubmeshes = true; // "source" FACE must be meshed by other algo
_neededLowerHyps[ 1 ] = true; // suppress warning on hiding a global 1D algo
_neededLowerHyps[ 2 ] = true; // suppress warning on hiding a global 2D algo
//myProjectTriangles = false;
mySetErrorToSM = true; // to pass an error to a sub-mesh of a current solid or not
}
//================================================================================
/*!
* \brief Destructor
*/
//================================================================================
StdMeshers_Prism_3D::~StdMeshers_Prism_3D()
{}
//=======================================================================
//function : CheckHypothesis
//purpose :
//=======================================================================
bool StdMeshers_Prism_3D::CheckHypothesis(SMESH_Mesh& aMesh,
const TopoDS_Shape& aShape,
SMESH_Hypothesis::Hypothesis_Status& aStatus)
{
// Check shape geometry
/* PAL16229
aStatus = SMESH_Hypothesis::HYP_BAD_GEOMETRY;
// find not quadrangle faces
list< TopoDS_Shape > notQuadFaces;
int nbEdge, nbWire, nbFace = 0;
TopExp_Explorer exp( aShape, TopAbs_FACE );
for ( ; exp.More(); exp.Next() ) {
++nbFace;
const TopoDS_Shape& face = exp.Current();
nbEdge = TAssocTool::Count( face, TopAbs_EDGE, 0 );
nbWire = TAssocTool::Count( face, TopAbs_WIRE, 0 );
if ( nbEdge!= 4 || nbWire!= 1 ) {
if ( !notQuadFaces.empty() ) {
if ( TAssocTool::Count( notQuadFaces.back(), TopAbs_EDGE, 0 ) != nbEdge ||
TAssocTool::Count( notQuadFaces.back(), TopAbs_WIRE, 0 ) != nbWire )
RETURN_BAD_RESULT("Different not quad faces");
}
notQuadFaces.push_back( face );
}
}
if ( !notQuadFaces.empty() )
{
if ( notQuadFaces.size() != 2 )
RETURN_BAD_RESULT("Bad nb not quad faces: " << notQuadFaces.size());
// check total nb faces
nbEdge = TAssocTool::Count( notQuadFaces.back(), TopAbs_EDGE, 0 );
if ( nbFace != nbEdge + 2 )
RETURN_BAD_RESULT("Bad nb of faces: " << nbFace << " but must be " << nbEdge + 2);
}
*/
// no hypothesis
aStatus = SMESH_Hypothesis::HYP_OK;
return true;
}
//=======================================================================
//function : Compute
//purpose : Compute mesh on a COMPOUND of SOLIDs
//=======================================================================
bool StdMeshers_Prism_3D::Compute(SMESH_Mesh& theMesh, const TopoDS_Shape& theShape)
{
SMESH_MesherHelper helper( theMesh );
myHelper = &helper;
int nbSolids = helper.Count( theShape, TopAbs_SOLID, /*skipSame=*/false );
if ( nbSolids < 1 )
return true;
TopTools_IndexedDataMapOfShapeListOfShape faceToSolids;
TopExp::MapShapesAndAncestors( theShape, TopAbs_FACE, TopAbs_SOLID, faceToSolids );
// look for meshed FACEs ("source" FACEs) that must be prism bottoms
list< TopoDS_Face > meshedFaces, notQuadMeshedFaces, notQuadFaces;
const bool meshHasQuads = ( theMesh.NbQuadrangles() > 0 );
for ( int iF = 1; iF < faceToSolids.Extent(); ++iF )
{
const TopoDS_Face& face = TopoDS::Face( faceToSolids.FindKey( iF ));
SMESH_subMesh* faceSM = theMesh.GetSubMesh( face );
if ( !faceSM->IsEmpty() )
{
if ( !meshHasQuads ||
!helper.IsSameElemGeometry( faceSM->GetSubMeshDS(), SMDSGeom_QUADRANGLE ) ||
!helper.IsStructured( faceSM )
)
notQuadMeshedFaces.push_front( face );
else if ( myHelper->Count( face, TopAbs_EDGE, /*ignoreSame=*/false ) != 4 )
meshedFaces.push_front( face );
else
meshedFaces.push_back( face );
}
else if ( myHelper->Count( face, TopAbs_EDGE, /*ignoreSame=*/false ) != 4 )
{
notQuadFaces.push_back( face );
}
}
// notQuadFaces are of medium priority, put them before ordinary meshed faces
meshedFaces.splice( meshedFaces.begin(), notQuadFaces );
// notQuadMeshedFaces are of highest priority, put them before notQuadFaces
meshedFaces.splice( meshedFaces.begin(), notQuadMeshedFaces );
Prism_3D::TPrismTopo prism;
if ( nbSolids == 1 )
{
if ( !meshedFaces.empty() )
prism.myBottom = meshedFaces.front();
return ( initPrism( prism, TopExp_Explorer( theShape, TopAbs_SOLID ).Current() ) &&
compute( prism ));
}
TopTools_MapOfShape meshedSolids;
list< Prism_3D::TPrismTopo > meshedPrism;
TopTools_ListIteratorOfListOfShape solidIt;
while ( meshedSolids.Extent() < nbSolids )
{
if ( _computeCanceled )
return toSM( error( SMESH_ComputeError::New(COMPERR_CANCELED)));
// compute prisms having avident computed source FACE
while ( !meshedFaces.empty() )
{
TopoDS_Face face = meshedFaces.front();
meshedFaces.pop_front();
TopTools_ListOfShape& solidList = faceToSolids.ChangeFromKey( face );
while ( !solidList.IsEmpty() )
{
TopoDS_Shape solid = solidList.First();
solidList.RemoveFirst();
if ( meshedSolids.Add( solid ))
{
prism.Clear();
prism.myBottom = face;
if ( !initPrism( prism, solid ) ||
!compute( prism ))
return false;
meshedFaces.push_front( prism.myTop );
meshedPrism.push_back( prism );
}
}
}
if ( meshedSolids.Extent() == nbSolids )
break;
// below in the loop we try to find source FACEs somehow
// project mesh from source FACEs of computed prisms to
// prisms sharing wall FACEs
list< Prism_3D::TPrismTopo >::iterator prismIt = meshedPrism.begin();
for ( ; prismIt != meshedPrism.end(); ++prismIt )
{
for ( size_t iW = 0; iW < prismIt->myWallQuads.size(); ++iW )
{
Prism_3D::TQuadList::iterator wQuad = prismIt->myWallQuads[iW].begin();
for ( ; wQuad != prismIt->myWallQuads[iW].end(); ++ wQuad )
{
const TopoDS_Face& wFace = (*wQuad)->face;
TopTools_ListOfShape& solidList = faceToSolids.ChangeFromKey( wFace );
solidIt.Initialize( solidList );
while ( solidIt.More() )
{
const TopoDS_Shape& solid = solidIt.Value();
if ( meshedSolids.Contains( solid )) {
solidList.Remove( solidIt );
continue; // already computed prism
}
// find a source FACE of the SOLID: it's a FACE sharing a bottom EDGE with wFace
const TopoDS_Edge& wEdge = (*wQuad)->side[ QUAD_TOP_SIDE ]->Edge(0);
PShapeIteratorPtr faceIt = myHelper->GetAncestors( wEdge, *myHelper->GetMesh(),
TopAbs_FACE);
while ( const TopoDS_Shape* f = faceIt->next() )
{
const TopoDS_Face& candidateF = TopoDS::Face( *f );
prism.Clear();
prism.myBottom = candidateF;
mySetErrorToSM = false;
if ( !myHelper->IsSubShape( candidateF, prismIt->myShape3D ) &&
!myHelper->GetMesh()->GetSubMesh( candidateF )->IsMeshComputed() &&
initPrism( prism, solid ) &&
project2dMesh( prismIt->myBottom, candidateF))
{
mySetErrorToSM = true;
if ( !compute( prism ))
return false;
meshedFaces.push_front( prism.myTop );
meshedFaces.push_front( prism.myBottom );
meshedPrism.push_back( prism );
meshedSolids.Add( solid );
}
InitComputeError();
}
mySetErrorToSM = true;
InitComputeError();
if ( meshedSolids.Contains( solid ))
solidList.Remove( solidIt );
else
solidIt.Next();
}
}
}
if ( !meshedFaces.empty() )
break; // to compute prisms with avident sources
}
// find FACEs with local 1D hyps, which has to be computed by now,
// or at least any computed FACEs
for ( int iF = 1; ( meshedFaces.empty() && iF < faceToSolids.Extent() ); ++iF )
{
const TopoDS_Face& face = TopoDS::Face( faceToSolids.FindKey( iF ));
const TopTools_ListOfShape& solidList = faceToSolids.FindFromKey( face );
if ( solidList.IsEmpty() ) continue;
SMESH_subMesh* faceSM = theMesh.GetSubMesh( face );
if ( !faceSM->IsEmpty() )
{
meshedFaces.push_back( face ); // lower priority
}
else
{
bool allSubMeComputed = true;
SMESH_subMeshIteratorPtr smIt = faceSM->getDependsOnIterator(false,true);
while ( smIt->more() && allSubMeComputed )
allSubMeComputed = smIt->next()->IsMeshComputed();
if ( allSubMeComputed )
{
faceSM->ComputeStateEngine( SMESH_subMesh::COMPUTE );
if ( !faceSM->IsEmpty() )
meshedFaces.push_front( face ); // higher priority
else
faceSM->ComputeStateEngine( SMESH_subMesh::CHECK_COMPUTE_STATE );
}
}
}
// TODO. there are other ways to find out the source FACE:
// propagation, topological similarity, ect.
// simply try to mesh all not meshed SOLIDs
if ( meshedFaces.empty() )
{
for ( TopExp_Explorer solid( theShape, TopAbs_SOLID ); solid.More(); solid.Next() )
{
mySetErrorToSM = false;
prism.Clear();
if ( !meshedSolids.Contains( solid.Current() ) &&
initPrism( prism, solid.Current() ))
{
mySetErrorToSM = true;
if ( !compute( prism ))
return false;
meshedFaces.push_front( prism.myTop );
meshedFaces.push_front( prism.myBottom );
meshedPrism.push_back( prism );
meshedSolids.Add( solid.Current() );
}
mySetErrorToSM = true;
}
}
if ( meshedFaces.empty() ) // set same error to 10 not-computed solids
{
SMESH_ComputeErrorPtr err = SMESH_ComputeError::New
( COMPERR_BAD_INPUT_MESH, "No meshed source face found", this );
const int maxNbErrors = 10; // limit nb errors not to overload the Compute dialog
TopExp_Explorer solid( theShape, TopAbs_SOLID );
for ( int i = 0; ( i < maxNbErrors && solid.More() ); ++i, solid.Next() )
if ( !meshedSolids.Contains( solid.Current() ))
{
SMESH_subMesh* sm = theMesh.GetSubMesh( solid.Current() );
sm->GetComputeError() = err;
}
return error( err );
}
}
return true;
}
//================================================================================
/*!
* \brief Find wall faces by bottom edges
*/
//================================================================================
bool StdMeshers_Prism_3D::getWallFaces( Prism_3D::TPrismTopo & thePrism,
const int totalNbFaces)
{
thePrism.myWallQuads.clear();
SMESH_Mesh* mesh = myHelper->GetMesh();
StdMeshers_Quadrangle_2D* quadAlgo = TQuadrangleAlgo::instance( this, myHelper );
TopTools_MapOfShape faceMap;
TopTools_IndexedDataMapOfShapeListOfShape edgeToFaces;
TopExp::MapShapesAndAncestors( thePrism.myShape3D,
TopAbs_EDGE, TopAbs_FACE, edgeToFaces );
// ------------------------------
// Get the 1st row of wall FACEs
// ------------------------------
list< TopoDS_Edge >::iterator edge = thePrism.myBottomEdges.begin();
std::list< int >::iterator nbE = thePrism.myNbEdgesInWires.begin();
int iE = 0;
while ( edge != thePrism.myBottomEdges.end() )
{
++iE;
if ( BRep_Tool::Degenerated( *edge ))
{
edge = thePrism.myBottomEdges.erase( edge );
--iE;
--(*nbE);
}
else
{
TopTools_ListIteratorOfListOfShape faceIt( edgeToFaces.FindFromKey( *edge ));
for ( ; faceIt.More(); faceIt.Next() )
{
const TopoDS_Face& face = TopoDS::Face( faceIt.Value() );
if ( !thePrism.myBottom.IsSame( face ))
{
Prism_3D::TQuadList quadList( 1, quadAlgo->CheckNbEdges( *mesh, face ));
if ( !quadList.back() )
return toSM( error(TCom("Side face #") << shapeID( face )
<< " not meshable with quadrangles"));
if ( ! setBottomEdge( *edge, quadList.back(), face ))
return toSM( error(TCom("Composite 'horizontal' edges are not supported")));
thePrism.myWallQuads.push_back( quadList );
faceMap.Add( face );
break;
}
}
++edge;
}
if ( iE == *nbE )
{
iE = 0;
++nbE;
}
}
// -------------------------
// Find the rest wall FACEs
// -------------------------
// Compose a vector of indixes of right neighbour FACE for each wall FACE
// that is not so evident in case of several WIREs in the bottom FACE
thePrism.myRightQuadIndex.clear();
for ( size_t i = 0; i < thePrism.myWallQuads.size(); ++i )
thePrism.myRightQuadIndex.push_back( i+1 );
list< int >::iterator nbEinW = thePrism.myNbEdgesInWires.begin();
for ( int iLeft = 0; nbEinW != thePrism.myNbEdgesInWires.end(); ++nbEinW )
{
thePrism.myRightQuadIndex[ iLeft + *nbEinW - 1 ] = iLeft; // 1st EDGE index of a current WIRE
iLeft += *nbEinW;
}
while ( totalNbFaces - faceMap.Extent() > 2 )
{
// find wall FACEs adjacent to each of wallQuads by the right side EDGE
int nbKnownFaces;
do {
nbKnownFaces = faceMap.Extent();
StdMeshers_FaceSide *rightSide, *topSide; // sides of the quad
for ( size_t i = 0; i < thePrism.myWallQuads.size(); ++i )
{
rightSide = thePrism.myWallQuads[i].back()->side[ QUAD_RIGHT_SIDE ];
for ( int iE = 0; iE < rightSide->NbEdges(); ++iE ) // rightSide can be composite
{
const TopoDS_Edge & rightE = rightSide->Edge( iE );
TopTools_ListIteratorOfListOfShape face( edgeToFaces.FindFromKey( rightE ));
for ( ; face.More(); face.Next() )
if ( faceMap.Add( face.Value() ))
{
// a new wall FACE encountered, store it in thePrism.myWallQuads
const int iRight = thePrism.myRightQuadIndex[i];
topSide = thePrism.myWallQuads[ iRight ].back()->side[ QUAD_TOP_SIDE ];
const TopoDS_Edge& newBotE = topSide->Edge(0);
const TopoDS_Shape& newWallF = face.Value();
thePrism.myWallQuads[ iRight ].push_back( quadAlgo->CheckNbEdges( *mesh, newWallF ));
if ( !thePrism.myWallQuads[ iRight ].back() )
return toSM( error(TCom("Side face #") << shapeID( newWallF ) <<
" not meshable with quadrangles"));
if ( ! setBottomEdge( newBotE, thePrism.myWallQuads[ iRight ].back(), newWallF ))
return toSM( error(TCom("Composite 'horizontal' edges are not supported")));
}
}
}
} while ( nbKnownFaces != faceMap.Extent() );
// find wall FACEs adjacent to each of thePrism.myWallQuads by the top side EDGE
if ( totalNbFaces - faceMap.Extent() > 2 )
{
for ( size_t i = 0; i < thePrism.myWallQuads.size(); ++i )
{
StdMeshers_FaceSide* topSide = thePrism.myWallQuads[i].back()->side[ QUAD_TOP_SIDE ];
const TopoDS_Edge & topE = topSide->Edge( 0 );
if ( topSide->NbEdges() > 1 )
return toSM( error(COMPERR_BAD_SHAPE, TCom("Side face #") <<
shapeID( thePrism.myWallQuads[i].back()->face )
<< " has a composite top edge"));
TopTools_ListIteratorOfListOfShape faceIt( edgeToFaces.FindFromKey( topE ));
for ( ; faceIt.More(); faceIt.Next() )
if ( faceMap.Add( faceIt.Value() ))
{
// a new wall FACE encountered, store it in wallQuads
thePrism.myWallQuads[ i ].push_back( quadAlgo->CheckNbEdges( *mesh, faceIt.Value() ));
if ( !thePrism.myWallQuads[ i ].back() )
return toSM( error(TCom("Side face #") << shapeID( faceIt.Value() ) <<
" not meshable with quadrangles"));
if ( ! setBottomEdge( topE, thePrism.myWallQuads[ i ].back(), faceIt.Value() ))
return toSM( error(TCom("Composite 'horizontal' edges are not supported")));
if ( totalNbFaces - faceMap.Extent() == 2 )
{
i = thePrism.myWallQuads.size(); // to quit from the outer loop
break;
}
}
}
}
} // while ( totalNbFaces - faceMap.Extent() > 2 )
// ------------------
// Find the top FACE
// ------------------
if ( thePrism.myTop.IsNull() )
{
// now only top and bottom FACEs are not in the faceMap
faceMap.Add( thePrism.myBottom );
for ( TopExp_Explorer f( thePrism.myShape3D, TopAbs_FACE );f.More(); f.Next() )
if ( !faceMap.Contains( f.Current() )) {
thePrism.myTop = TopoDS::Face( f.Current() );
break;
}
if ( thePrism.myTop.IsNull() )
return toSM( error("Top face not found"));
}
// Check that the top FACE shares all the top EDGEs
for ( size_t i = 0; i < thePrism.myWallQuads.size(); ++i )
{
StdMeshers_FaceSide* topSide = thePrism.myWallQuads[i].back()->side[ QUAD_TOP_SIDE ];
const TopoDS_Edge & topE = topSide->Edge( 0 );
if ( !myHelper->IsSubShape( topE, thePrism.myTop ))
return toSM( error( TCom("Wrong source face (#") << shapeID( thePrism.myBottom )));
}
return true;
}
//=======================================================================
//function : compute
//purpose : Compute mesh on a SOLID
//=======================================================================
bool StdMeshers_Prism_3D::compute(const Prism_3D::TPrismTopo& thePrism)
{
myHelper->IsQuadraticSubMesh( thePrism.myShape3D );
if ( _computeCanceled )
return toSM( error( SMESH_ComputeError::New(COMPERR_CANCELED)));
// Make all side FACEs of thePrism meshed with quads
if ( !computeWalls( thePrism ))
return false;
// Analyse mesh and geometry to find block sub-shapes and submeshes
if ( !myBlock.Init( myHelper, thePrism ))
return toSM( error( myBlock.GetError()));
SMESHDS_Mesh* meshDS = myHelper->GetMeshDS();
int volumeID = meshDS->ShapeToIndex( thePrism.myShape3D );
// To compute coordinates of a node inside a block, it is necessary to know
// 1. normalized parameters of the node by which
// 2. coordinates of node projections on all block sub-shapes are computed
// So we fill projections on vertices at once as they are same for all nodes
myShapeXYZ.resize( myBlock.NbSubShapes() );
for ( int iV = SMESH_Block::ID_FirstV; iV < SMESH_Block::ID_FirstE; ++iV ) {
myBlock.VertexPoint( iV, myShapeXYZ[ iV ]);
SHOWYXZ("V point " <<iV << " ", myShapeXYZ[ iV ]);
}
// Projections on the top and bottom faces are taken from nodes existing
// on these faces; find correspondence between bottom and top nodes
myBotToColumnMap.clear();
if ( !assocOrProjBottom2Top() ) // it also fills myBotToColumnMap
return false;
// Create nodes inside the block
// try to use transformation (issue 0020680)
vector<gp_Trsf> trsf;
if ( myBlock.GetLayersTransformation( trsf, thePrism ))
{
// loop on nodes inside the bottom face
TNode2ColumnMap::iterator bot_column = myBotToColumnMap.begin();
for ( ; bot_column != myBotToColumnMap.end(); ++bot_column )
{
const Prism_3D::TNode& tBotNode = bot_column->first; // bottom TNode
if ( tBotNode.GetPositionType() != SMDS_TOP_FACE )
continue; // node is not inside face
// column nodes; middle part of the column are zero pointers
TNodeColumn& column = bot_column->second;
TNodeColumn::iterator columnNodes = column.begin();
for ( int z = 0; columnNodes != column.end(); ++columnNodes, ++z)
{
const SMDS_MeshNode* & node = *columnNodes;
if ( node ) continue; // skip bottom or top node
gp_XYZ coords = tBotNode.GetCoords();
trsf[z-1].Transforms( coords );
node = meshDS->AddNode( coords.X(), coords.Y(), coords.Z() );
meshDS->SetNodeInVolume( node, volumeID );
}
} // loop on bottom nodes
}
else // use block approach
{
// loop on nodes inside the bottom face
Prism_3D::TNode prevBNode;
TNode2ColumnMap::iterator bot_column = myBotToColumnMap.begin();
for ( ; bot_column != myBotToColumnMap.end(); ++bot_column )
{
const Prism_3D::TNode& tBotNode = bot_column->first; // bottom TNode
if ( tBotNode.GetPositionType() != SMDS_TOP_FACE )
continue; // node is not inside face
// column nodes; middle part of the column are zero pointers
TNodeColumn& column = bot_column->second;
// compute bottom node parameters
gp_XYZ paramHint(-1,-1,-1);
if ( prevBNode.IsNeighbor( tBotNode ))
paramHint = prevBNode.GetParams();
if ( !myBlock.ComputeParameters( tBotNode.GetCoords(), tBotNode.ChangeParams(),
ID_BOT_FACE, paramHint ))
return toSM( error(TCom("Can't compute normalized parameters for node ")
<< tBotNode.myNode->GetID() << " on the face #"
<< myBlock.SubMesh( ID_BOT_FACE )->GetId() ));
prevBNode = tBotNode;
myShapeXYZ[ ID_BOT_FACE ] = tBotNode.GetCoords();
gp_XYZ botParams = tBotNode.GetParams();
// compute top node parameters
myShapeXYZ[ ID_TOP_FACE ] = gpXYZ( column.back() );
gp_XYZ topParams = botParams;
topParams.SetZ( 1 );
if ( column.size() > 2 ) {
gp_Pnt topCoords = myShapeXYZ[ ID_TOP_FACE ];
if ( !myBlock.ComputeParameters( topCoords, topParams, ID_TOP_FACE, topParams ))
return toSM( error(TCom("Can't compute normalized parameters ")
<< "for node " << column.back()->GetID()
<< " on the face #"<< column.back()->getshapeId() ));
}
// vertical loop
TNodeColumn::iterator columnNodes = column.begin();
for ( int z = 0; columnNodes != column.end(); ++columnNodes, ++z)
{
const SMDS_MeshNode* & node = *columnNodes;
if ( node ) continue; // skip bottom or top node
// params of a node to create
double rz = (double) z / (double) ( column.size() - 1 );
gp_XYZ params = botParams * ( 1 - rz ) + topParams * rz;
// set coords on all faces and nodes
const int nbSideFaces = 4;
int sideFaceIDs[nbSideFaces] = { SMESH_Block::ID_Fx0z,
SMESH_Block::ID_Fx1z,
SMESH_Block::ID_F0yz,
SMESH_Block::ID_F1yz };
for ( int iF = 0; iF < nbSideFaces; ++iF )
if ( !setFaceAndEdgesXYZ( sideFaceIDs[ iF ], params, z ))
return false;
// compute coords for a new node
gp_XYZ coords;
if ( !SMESH_Block::ShellPoint( params, myShapeXYZ, coords ))
return toSM( error("Can't compute coordinates by normalized parameters"));
SHOWYXZ("TOPFacePoint ",myShapeXYZ[ ID_TOP_FACE]);
SHOWYXZ("BOT Node "<< tBotNode.myNode->GetID(),gpXYZ(tBotNode.myNode));
SHOWYXZ("ShellPoint ",coords);
// create a node
node = meshDS->AddNode( coords.X(), coords.Y(), coords.Z() );
meshDS->SetNodeInVolume( node, volumeID );
}
} // loop on bottom nodes
}
// Create volumes
SMESHDS_SubMesh* smDS = myBlock.SubMeshDS( ID_BOT_FACE );
if ( !smDS ) return toSM( error(COMPERR_BAD_INPUT_MESH, "Null submesh"));
// loop on bottom mesh faces
SMDS_ElemIteratorPtr faceIt = smDS->GetElements();
while ( faceIt->more() )
{
const SMDS_MeshElement* face = faceIt->next();
if ( !face || face->GetType() != SMDSAbs_Face )
continue;
// find node columns for each node
int nbNodes = face->NbCornerNodes();
vector< const TNodeColumn* > columns( nbNodes );
for ( int i = 0; i < nbNodes; ++i )
{
const SMDS_MeshNode* n = face->GetNode( i );
if ( n->GetPosition()->GetTypeOfPosition() == SMDS_TOP_FACE ) {
TNode2ColumnMap::iterator bot_column = myBotToColumnMap.find( n );
if ( bot_column == myBotToColumnMap.end() )
return toSM( error(TCom("No nodes found above node ") << n->GetID() ));
columns[ i ] = & bot_column->second;
}
else {
columns[ i ] = myBlock.GetNodeColumn( n );
if ( !columns[ i ] )
return toSM( error(TCom("No side nodes found above node ") << n->GetID() ));
}
}
// create prisms
AddPrisms( columns, myHelper );
} // loop on bottom mesh faces
// clear data
myBotToColumnMap.clear();
myBlock.Clear();
return true;
}
//=======================================================================
//function : computeWalls
//purpose : Compute 2D mesh on walls FACEs of a prism
//=======================================================================
bool StdMeshers_Prism_3D::computeWalls(const Prism_3D::TPrismTopo& thePrism)
{
SMESH_Mesh* mesh = myHelper->GetMesh();
SMESHDS_Mesh* meshDS = myHelper->GetMeshDS();
TProjction1dAlgo* projector1D = TProjction1dAlgo::instance( this );
StdMeshers_Quadrangle_2D* quadAlgo = TQuadrangleAlgo::instance( this, myHelper );
SMESH_HypoFilter hyp1dFilter( SMESH_HypoFilter::IsAlgo(),/*not=*/true);
hyp1dFilter.And( SMESH_HypoFilter::HasDim( 1 ));
hyp1dFilter.And( SMESH_HypoFilter::IsMoreLocalThan( thePrism.myShape3D, *mesh ));
// Discretize equally 'vertical' EDGEs
// -----------------------------------
// find source FACE sides for projection: either already computed ones or
// the 'most composite' ones
multimap< int, int > wgt2quad;
for ( size_t iW = 0; iW != thePrism.myWallQuads.size(); ++iW )
{
Prism_3D::TQuadList::const_iterator quad = thePrism.myWallQuads[iW].begin();
int wgt = 0; // "weight"
for ( ; quad != thePrism.myWallQuads[iW].end(); ++quad )
{
StdMeshers_FaceSide* lftSide = (*quad)->side[ QUAD_LEFT_SIDE ];
for ( int i = 0; i < lftSide->NbEdges(); ++i )
{
++wgt;
const TopoDS_Edge& E = lftSide->Edge(i);
if ( mesh->GetSubMesh( E )->IsMeshComputed() )
wgt += 10;
else if ( mesh->GetHypothesis( E, hyp1dFilter, true )) // local hypothesis!
wgt += 100;
}
}
wgt2quad.insert( make_pair( wgt, iW ));
// in quadratic mesh, pass ignoreMediumNodes to quad sides
if ( myHelper->GetIsQuadratic() )
{
quad = thePrism.myWallQuads[iW].begin();
for ( ; quad != thePrism.myWallQuads[iW].end(); ++quad )
for ( int i = 0; i < NB_QUAD_SIDES; ++i )
(*quad)->side[ i ]->SetIgnoreMediumNodes( true );
}
}
// Project 'vertical' EDGEs, from left to right
multimap< int, int >::reverse_iterator w2q = wgt2quad.rbegin();
for ( ; w2q != wgt2quad.rend(); ++w2q )
{
const int iW = w2q->second;
const Prism_3D::TQuadList& quads = thePrism.myWallQuads[ iW ];
Prism_3D::TQuadList::const_iterator quad = quads.begin();
for ( ; quad != quads.end(); ++quad )
{
StdMeshers_FaceSide* rgtSide = (*quad)->side[ QUAD_RIGHT_SIDE ]; // tgt
StdMeshers_FaceSide* lftSide = (*quad)->side[ QUAD_LEFT_SIDE ]; // src
bool swapLeftRight = ( lftSide->NbSegments( /*update=*/true ) == 0 &&
rgtSide->NbSegments( /*update=*/true ) > 0 );
if ( swapLeftRight )
std::swap( lftSide, rgtSide );
// assure that all the source (left) EDGEs are meshed
int nbSrcSegments = 0;
for ( int i = 0; i < lftSide->NbEdges(); ++i )
{
const TopoDS_Edge& srcE = lftSide->Edge(i);
SMESH_subMesh* srcSM = mesh->GetSubMesh( srcE );
if ( !srcSM->IsMeshComputed() ) {
srcSM->ComputeSubMeshStateEngine( SMESH_subMesh::COMPUTE );
srcSM->ComputeStateEngine ( SMESH_subMesh::COMPUTE );
if ( !srcSM->IsMeshComputed() )
return false;
}
nbSrcSegments += srcSM->GetSubMeshDS()->NbElements();
}
// check target EDGEs
int nbTgtMeshed = 0, nbTgtSegments = 0;
vector< bool > isTgtEdgeComputed( rgtSide->NbEdges() );
for ( int i = 0; i < rgtSide->NbEdges(); ++i )
{
const TopoDS_Edge& tgtE = rgtSide->Edge(i);
SMESH_subMesh* tgtSM = mesh->GetSubMesh( tgtE );
if (( isTgtEdgeComputed[ i ] = tgtSM->IsMeshComputed() )) {
++nbTgtMeshed;
nbTgtSegments += tgtSM->GetSubMeshDS()->NbElements();
}
}
if ( rgtSide->NbEdges() == nbTgtMeshed ) // all tgt EDGEs meshed
{
if ( nbTgtSegments != nbSrcSegments )
{
for ( int i = 0; i < lftSide->NbEdges(); ++i )
addBadInputElements( meshDS->MeshElements( lftSide->Edge( i )));
for ( int i = 0; i < rgtSide->NbEdges(); ++i )
addBadInputElements( meshDS->MeshElements( rgtSide->Edge( i )));
return toSM( error( TCom("Different nb of segment on logically vertical edges #")
<< shapeID( lftSide->Edge(0) ) << " and #"
<< shapeID( rgtSide->Edge(0) ) << ": "
<< nbSrcSegments << " != " << nbTgtSegments ));
}
continue;
}
// Compute 'vertical projection'
if ( nbTgtMeshed == 0 )
{
// compute nodes on target VERTEXes
const UVPtStructVec& srcNodeStr = lftSide->GetUVPtStruct();
if ( srcNodeStr.size() == 0 )
return toSM( error( TCom("Invalid node positions on edge #") <<
shapeID( lftSide->Edge(0) )));
vector< SMDS_MeshNode* > newNodes( srcNodeStr.size() );
for ( int is2ndV = 0; is2ndV < 2; ++is2ndV )
{
const TopoDS_Edge& E = rgtSide->Edge( is2ndV ? rgtSide->NbEdges()-1 : 0 );
TopoDS_Vertex v = myHelper->IthVertex( is2ndV, E );
mesh->GetSubMesh( v )->ComputeStateEngine( SMESH_subMesh::COMPUTE );
const SMDS_MeshNode* n = SMESH_Algo::VertexNode( v, meshDS );
newNodes[ is2ndV ? 0 : newNodes.size()-1 ] = (SMDS_MeshNode*) n;
}
// compute nodes on target EDGEs
rgtSide->Reverse(); // direct it same as the lftSide
myHelper->SetElementsOnShape( false );
TopoDS_Edge tgtEdge;
for ( size_t iN = 1; iN < srcNodeStr.size()-1; ++iN ) // add nodes
{
gp_Pnt p = rgtSide->Value3d ( srcNodeStr[ iN ].normParam );
double u = rgtSide->Parameter( srcNodeStr[ iN ].normParam, tgtEdge );
newNodes[ iN ] = meshDS->AddNode( p.X(), p.Y(), p.Z() );
meshDS->SetNodeOnEdge( newNodes[ iN ], tgtEdge, u );
}
for ( size_t iN = 1; iN < srcNodeStr.size(); ++iN ) // add segments
{
SMDS_MeshElement* newEdge = myHelper->AddEdge( newNodes[ iN-1 ], newNodes[ iN ] );
std::pair<int, TopAbs_ShapeEnum> id2type =
myHelper->GetMediumPos( newNodes[ iN-1 ], newNodes[ iN ] );
if ( id2type.second == TopAbs_EDGE )
{
meshDS->SetMeshElementOnShape( newEdge, id2type.first );
}
else // new nodes are on different EDGEs; put one of them on VERTEX
{
const int edgeIndex = rgtSide->EdgeIndex( srcNodeStr[ iN-1 ].normParam );
const double vertexParam = rgtSide->LastParameter( edgeIndex );
const gp_Pnt p = BRep_Tool::Pnt( rgtSide->LastVertex( edgeIndex ));
const int isPrev = ( Abs( srcNodeStr[ iN-1 ].normParam - vertexParam ) <
Abs( srcNodeStr[ iN ].normParam - vertexParam ));
meshDS->SetMeshElementOnShape( newEdge, newNodes[ iN-(1-isPrev) ]->getshapeId() );
meshDS->UnSetNodeOnShape( newNodes[ iN-isPrev ] );
meshDS->SetNodeOnVertex ( newNodes[ iN-isPrev ], rgtSide->LastVertex( edgeIndex ));
meshDS->MoveNode( newNodes[ iN-isPrev ], p.X(), p.Y(), p.Z() );
}
}
myHelper->SetElementsOnShape( true );
for ( int i = 0; i < rgtSide->NbEdges(); ++i ) // update state of sub-meshes
{
const TopoDS_Edge& E = rgtSide->Edge( i );
SMESH_subMesh* tgtSM = mesh->GetSubMesh( E );
tgtSM->ComputeStateEngine( SMESH_subMesh::CHECK_COMPUTE_STATE );
}
// to continue projection from the just computed side as a source
if ( !swapLeftRight && rgtSide->NbEdges() > 1 && w2q->second == iW )
{
std::pair<int,int> wgt2quadKeyVal( w2q->first + 1, thePrism.myRightQuadIndex[ iW ]);
wgt2quad.insert( wgt2quadKeyVal ); // it will be skipped by ++w2q
wgt2quad.insert( wgt2quadKeyVal );
w2q = wgt2quad.rbegin();
}
}
else
{
// HOPE assigned hypotheses are OK, so that equal nb of segments will be generated
//return toSM( error("Partial projection not implemented"));
}
} // loop on quads of a composite wall side
} // loop on the ordered wall sides
for ( size_t iW = 0; iW != thePrism.myWallQuads.size(); ++iW )
{
Prism_3D::TQuadList::const_iterator quad = thePrism.myWallQuads[iW].begin();
for ( ; quad != thePrism.myWallQuads[iW].end(); ++quad )
{
// Top EDGEs must be projections from the bottom ones
// to compute stuctured quad mesh on wall FACEs
// ---------------------------------------------------
const TopoDS_Edge& botE = (*quad)->side[ QUAD_BOTTOM_SIDE ]->Edge(0);
const TopoDS_Edge& topE = (*quad)->side[ QUAD_TOP_SIDE ]->Edge(0);
projector1D->myHyp.SetSourceEdge( botE );
SMESH_subMesh* tgtEdgeSm = mesh->GetSubMesh( topE );
if ( !tgtEdgeSm->IsMeshComputed() )
{
// compute nodes on VERTEXes
tgtEdgeSm->ComputeSubMeshStateEngine( SMESH_subMesh::COMPUTE );
// project segments
projector1D->InitComputeError();
bool ok = projector1D->Compute( *mesh, topE );
if ( !ok )
{
SMESH_ComputeErrorPtr err = projector1D->GetComputeError();
if ( err->IsOK() ) err->myName = COMPERR_ALGO_FAILED;
tgtEdgeSm->GetComputeError() = err;
return false;
}
}
tgtEdgeSm->ComputeStateEngine( SMESH_subMesh::CHECK_COMPUTE_STATE );
// Compute quad mesh on wall FACEs
// -------------------------------
const TopoDS_Face& face = (*quad)->face;
SMESH_subMesh* fSM = mesh->GetSubMesh( face );
if ( ! fSM->IsMeshComputed() )
{
// make all EDGES meshed
fSM->ComputeSubMeshStateEngine( SMESH_subMesh::COMPUTE );
if ( !fSM->SubMeshesComputed() )
return toSM( error( COMPERR_BAD_INPUT_MESH,
"Not all edges have valid algorithm and hypothesis"));
// mesh the <face>
quadAlgo->InitComputeError();
bool ok = quadAlgo->Compute( *mesh, face );
fSM->GetComputeError() = quadAlgo->GetComputeError();
if ( !ok )
return false;
fSM->ComputeStateEngine( SMESH_subMesh::CHECK_COMPUTE_STATE );
}
if ( myHelper->GetIsQuadratic() )
{
// fill myHelper with medium nodes built by quadAlgo
SMDS_ElemIteratorPtr fIt = fSM->GetSubMeshDS()->GetElements();
while ( fIt->more() )
myHelper->AddTLinks( dynamic_cast<const SMDS_MeshFace*>( fIt->next() ));
}
}
}
return true;
}
//=======================================================================
//function : Evaluate
//purpose :
//=======================================================================
bool StdMeshers_Prism_3D::Evaluate(SMESH_Mesh& theMesh,
const TopoDS_Shape& theShape,
MapShapeNbElems& aResMap)
{
if ( theShape.ShapeType() == TopAbs_COMPOUND )
{
bool ok = true;
for ( TopoDS_Iterator it( theShape ); it.More(); it.Next() )
ok &= Evaluate( theMesh, it.Value(), aResMap );
return ok;
}
SMESH_MesherHelper helper( theMesh );
myHelper = &helper;
myHelper->SetSubShape( theShape );
// find face contains only triangles
vector < SMESH_subMesh * >meshFaces;
TopTools_SequenceOfShape aFaces;
int NumBase = 0, i = 0, NbQFs = 0;
for (TopExp_Explorer exp(theShape, TopAbs_FACE); exp.More(); exp.Next()) {
i++;
aFaces.Append(exp.Current());
SMESH_subMesh *aSubMesh = theMesh.GetSubMesh(exp.Current());
meshFaces.push_back(aSubMesh);
MapShapeNbElemsItr anIt = aResMap.find(meshFaces[i-1]);
if( anIt==aResMap.end() )
return toSM( error( "Submesh can not be evaluated"));
std::vector<int> aVec = (*anIt).second;
int nbtri = Max(aVec[SMDSEntity_Triangle],aVec[SMDSEntity_Quad_Triangle]);
int nbqua = Max(aVec[SMDSEntity_Quadrangle],aVec[SMDSEntity_Quad_Quadrangle]);
if( nbtri==0 && nbqua>0 ) {
NbQFs++;
}
if( nbtri>0 ) {
NumBase = i;
}
}
if(NbQFs<4) {
std::vector<int> aResVec(SMDSEntity_Last);
for(int i=SMDSEntity_Node; i<SMDSEntity_Last; i++) aResVec[i] = 0;
SMESH_subMesh * sm = theMesh.GetSubMesh(theShape);
aResMap.insert(std::make_pair(sm,aResVec));
return toSM( error( "Submesh can not be evaluated" ));
}
if(NumBase==0) NumBase = 1; // only quads => set 1 faces as base
// find number of 1d elems for base face
int nb1d = 0;
TopTools_MapOfShape Edges1;
for (TopExp_Explorer exp(aFaces.Value(NumBase), TopAbs_EDGE); exp.More(); exp.Next()) {
Edges1.Add(exp.Current());
SMESH_subMesh *sm = theMesh.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]);
}
}
// find face opposite to base face
int OppNum = 0;
for(i=1; i<=6; i++) {
if(i==NumBase) continue;
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=1; i<=6; i++) {
if( i==OppNum || i==NumBase ) 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[NumBase-1] );
std::vector<int> aVec = (*anIt).second;
bool IsQuadratic = (aVec[SMDSEntity_Quad_Triangle]>aVec[SMDSEntity_Triangle]) ||
(aVec[SMDSEntity_Quad_Quadrangle]>aVec[SMDSEntity_Quadrangle]);
int nb2d_face0_3 = Max(aVec[SMDSEntity_Triangle],aVec[SMDSEntity_Quad_Triangle]);
int nb2d_face0_4 = Max(aVec[SMDSEntity_Quadrangle],aVec[SMDSEntity_Quad_Quadrangle]);
int nb0d_face0 = aVec[SMDSEntity_Node];
int nb1d_face0_int = ( nb2d_face0_3*3 + nb2d_face0_4*4 - nb1d ) / 2;
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_face0_3 * ( nb2d/nb1d );
aResVec[SMDSEntity_Quad_Hexa] = nb2d_face0_4 * ( nb2d/nb1d );
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_Penta] = nb2d_face0_3 * ( nb2d/nb1d );
aResVec[SMDSEntity_Hexa] = nb2d_face0_4 * ( nb2d/nb1d );
}
SMESH_subMesh * sm = theMesh.GetSubMesh(theShape);
aResMap.insert(std::make_pair(sm,aResVec));
return true;
}
//================================================================================
/*!
* \brief Create prisms
* \param columns - columns of nodes generated from nodes of a mesh face
* \param helper - helper initialized by mesh and shape to add prisms to
*/
//================================================================================
void StdMeshers_Prism_3D::AddPrisms( vector<const TNodeColumn*> & columns,
SMESH_MesherHelper* helper)
{
int nbNodes = columns.size();
int nbZ = columns[0]->size();
if ( nbZ < 2 ) return;
// find out orientation
bool isForward = true;
SMDS_VolumeTool vTool;
int z = 1;
switch ( nbNodes ) {
case 3: {
SMDS_VolumeOfNodes tmpPenta ( (*columns[0])[z-1], // bottom
(*columns[1])[z-1],
(*columns[2])[z-1],
(*columns[0])[z], // top
(*columns[1])[z],
(*columns[2])[z] );
vTool.Set( &tmpPenta );
isForward = vTool.IsForward();
break;
}
case 4: {
SMDS_VolumeOfNodes tmpHex( (*columns[0])[z-1], (*columns[1])[z-1], // bottom
(*columns[2])[z-1], (*columns[3])[z-1],
(*columns[0])[z], (*columns[1])[z], // top
(*columns[2])[z], (*columns[3])[z] );
vTool.Set( &tmpHex );
isForward = vTool.IsForward();
break;
}
default:
const int di = (nbNodes+1) / 3;
SMDS_VolumeOfNodes tmpVol ( (*columns[0] )[z-1],
(*columns[di] )[z-1],
(*columns[2*di])[z-1],
(*columns[0] )[z],
(*columns[di] )[z],
(*columns[2*di])[z] );
vTool.Set( &tmpVol );
isForward = vTool.IsForward();
}
// vertical loop on columns
helper->SetElementsOnShape( true );
switch ( nbNodes ) {
case 3: { // ---------- pentahedra
const int i1 = isForward ? 1 : 2;
const int i2 = isForward ? 2 : 1;
for ( z = 1; z < nbZ; ++z )
helper->AddVolume( (*columns[0 ])[z-1], // bottom
(*columns[i1])[z-1],
(*columns[i2])[z-1],
(*columns[0 ])[z], // top
(*columns[i1])[z],
(*columns[i2])[z] );
break;
}
case 4: { // ---------- hexahedra
const int i1 = isForward ? 1 : 3;
const int i3 = isForward ? 3 : 1;
for ( z = 1; z < nbZ; ++z )
helper->AddVolume( (*columns[0])[z-1], (*columns[i1])[z-1], // bottom
(*columns[2])[z-1], (*columns[i3])[z-1],
(*columns[0])[z], (*columns[i1])[z], // top
(*columns[2])[z], (*columns[i3])[z] );
break;
}
case 6: { // ---------- octahedra
const int iBase1 = isForward ? -1 : 0;
const int iBase2 = isForward ? 0 :-1;
for ( z = 1; z < nbZ; ++z )
helper->AddVolume( (*columns[0])[z+iBase1], (*columns[1])[z+iBase1], // bottom or top
(*columns[2])[z+iBase1], (*columns[3])[z+iBase1],
(*columns[4])[z+iBase1], (*columns[5])[z+iBase1],
(*columns[0])[z+iBase2], (*columns[1])[z+iBase2], // top or bottom
(*columns[2])[z+iBase2], (*columns[3])[z+iBase2],
(*columns[4])[z+iBase2], (*columns[5])[z+iBase2] );
break;
}
default: // ---------- polyhedra
vector<int> quantities( 2 + nbNodes, 4 );
quantities[0] = quantities[1] = nbNodes;
columns.resize( nbNodes + 1 );
columns[ nbNodes ] = columns[ 0 ];
const int i1 = isForward ? 1 : 3;
const int i3 = isForward ? 3 : 1;
const int iBase1 = isForward ? -1 : 0;
const int iBase2 = isForward ? 0 :-1;
vector<const SMDS_MeshNode*> nodes( 2*nbNodes + 4*nbNodes);
for ( z = 1; z < nbZ; ++z )
{
for ( int i = 0; i < nbNodes; ++i ) {
nodes[ i ] = (*columns[ i ])[z+iBase1]; // bottom or top
nodes[ 2*nbNodes-i-1 ] = (*columns[ i ])[z+iBase2]; // top or bottom
// side
int di = 2*nbNodes + 4*i;
nodes[ di+0 ] = (*columns[i ])[z ];
nodes[ di+i1] = (*columns[i+1])[z ];
nodes[ di+2 ] = (*columns[i+1])[z-1];
nodes[ di+i3] = (*columns[i ])[z-1];
}
helper->AddPolyhedralVolume( nodes, quantities );
}
} // switch ( nbNodes )
}
//================================================================================
/*!
* \brief Find correspondence between bottom and top nodes
* If elements on the bottom and top faces are topologically different,
* and projection is possible and allowed, perform the projection
* \retval bool - is a success or not
*/
//================================================================================
bool StdMeshers_Prism_3D::assocOrProjBottom2Top()
{
SMESH_subMesh * botSM = myBlock.SubMesh( ID_BOT_FACE );
SMESH_subMesh * topSM = myBlock.SubMesh( ID_TOP_FACE );
SMESHDS_SubMesh * botSMDS = botSM->GetSubMeshDS();
SMESHDS_SubMesh * topSMDS = topSM->GetSubMeshDS();
if ( !botSMDS || botSMDS->NbElements() == 0 )
{
_gen->Compute( *myHelper->GetMesh(), botSM->GetSubShape() );
botSMDS = botSM->GetSubMeshDS();
if ( !botSMDS || botSMDS->NbElements() == 0 )
return toSM( error(TCom("No elememts on face #") << botSM->GetId() ));
}
bool needProject = !topSM->IsMeshComputed();
if ( !needProject &&
(botSMDS->NbElements() != topSMDS->NbElements() ||
botSMDS->NbNodes() != topSMDS->NbNodes()))
{
MESSAGE("nb elem bot " << botSMDS->NbElements() <<
" top " << ( topSMDS ? topSMDS->NbElements() : 0 ));
MESSAGE("nb node bot " << botSMDS->NbNodes() <<
" top " << ( topSMDS ? topSMDS->NbNodes() : 0 ));
return toSM( error(TCom("Mesh on faces #") << botSM->GetId()
<<" and #"<< topSM->GetId() << " seems different" ));
}
if ( 0/*needProject && !myProjectTriangles*/ )
return toSM( error(TCom("Mesh on faces #") << botSM->GetId()
<<" and #"<< topSM->GetId() << " seems different" ));
///RETURN_BAD_RESULT("Need to project but not allowed");
if ( needProject )
{
return projectBottomToTop();
}
TopoDS_Face botFace = TopoDS::Face( myBlock.Shape( ID_BOT_FACE ));
TopoDS_Face topFace = TopoDS::Face( myBlock.Shape( ID_TOP_FACE ));
// associate top and bottom faces
TAssocTool::TShapeShapeMap shape2ShapeMap;
if ( !TAssocTool::FindSubShapeAssociation( botFace, myBlock.Mesh(),
topFace, myBlock.Mesh(),
shape2ShapeMap) )
return toSM( error(TCom("Topology of faces #") << botSM->GetId()
<<" and #"<< topSM->GetId() << " seems different" ));
// Find matching nodes of top and bottom faces
TNodeNodeMap n2nMap;
if ( ! TAssocTool::FindMatchingNodesOnFaces( botFace, myBlock.Mesh(),
topFace, myBlock.Mesh(),
shape2ShapeMap, n2nMap ))
return toSM( error(TCom("Mesh on faces #") << botSM->GetId()
<<" and #"<< topSM->GetId() << " seems different" ));
// Fill myBotToColumnMap
int zSize = myBlock.VerticalSize();
//TNode prevTNode;
TNodeNodeMap::iterator bN_tN = n2nMap.begin();
for ( ; bN_tN != n2nMap.end(); ++bN_tN )
{
const SMDS_MeshNode* botNode = bN_tN->first;
const SMDS_MeshNode* topNode = bN_tN->second;
if ( botNode->GetPosition()->GetTypeOfPosition() != SMDS_TOP_FACE )
continue; // wall columns are contained in myBlock
// create node column
Prism_3D::TNode bN( botNode );
TNode2ColumnMap::iterator bN_col =
myBotToColumnMap.insert( make_pair ( bN, TNodeColumn() )).first;
TNodeColumn & column = bN_col->second;
column.resize( zSize );
column.front() = botNode;
column.back() = topNode;
}
return true;
}
//================================================================================
/*!
* \brief Remove quadrangles from the top face and
* create triangles there by projection from the bottom
* \retval bool - a success or not
*/
//================================================================================
bool StdMeshers_Prism_3D::projectBottomToTop()
{
SMESHDS_Mesh* meshDS = myBlock.MeshDS();
SMESH_subMesh * botSM = myBlock.SubMesh( ID_BOT_FACE );
SMESH_subMesh * topSM = myBlock.SubMesh( ID_TOP_FACE );
SMESHDS_SubMesh * botSMDS = botSM->GetSubMeshDS();
SMESHDS_SubMesh * topSMDS = topSM->GetSubMeshDS();
if ( topSMDS && topSMDS->NbElements() > 0 )
topSM->ComputeStateEngine( SMESH_subMesh::CLEAN );
const TopoDS_Shape& botFace = myBlock.Shape( ID_BOT_FACE ); // oriented within the 3D SHAPE
const TopoDS_Shape& topFace = myBlock.Shape( ID_TOP_FACE);
int topFaceID = meshDS->ShapeToIndex( topFace );
// Fill myBotToColumnMap
int zSize = myBlock.VerticalSize();
Prism_3D::TNode prevTNode;
SMDS_NodeIteratorPtr nIt = botSMDS->GetNodes();
while ( nIt->more() )
{
const SMDS_MeshNode* botNode = nIt->next();
if ( botNode->GetPosition()->GetTypeOfPosition() != SMDS_TOP_FACE )
continue; // strange
// compute bottom node params
Prism_3D::TNode bN( botNode );
gp_XYZ paramHint(-1,-1,-1);
if ( prevTNode.IsNeighbor( bN ))
paramHint = prevTNode.GetParams();
if ( !myBlock.ComputeParameters( bN.GetCoords(), bN.ChangeParams(),
ID_BOT_FACE, paramHint ))
return toSM( error(TCom("Can't compute normalized parameters for node ")
<< botNode->GetID() << " on the face #"<< botSM->GetId() ));
prevTNode = bN;
// compute top node coords
gp_XYZ topXYZ; gp_XY topUV;
if ( !myBlock.FacePoint( ID_TOP_FACE, bN.GetParams(), topXYZ ) ||
!myBlock.FaceUV ( ID_TOP_FACE, bN.GetParams(), topUV ))
return toSM( error(TCom("Can't compute coordinates "
"by normalized parameters on the face #")<< topSM->GetId() ));
SMDS_MeshNode * topNode = meshDS->AddNode( topXYZ.X(),topXYZ.Y(),topXYZ.Z() );
meshDS->SetNodeOnFace( topNode, topFaceID, topUV.X(), topUV.Y() );
// create node column
TNode2ColumnMap::iterator bN_col =
myBotToColumnMap.insert( make_pair ( bN, TNodeColumn() )).first;
TNodeColumn & column = bN_col->second;
column.resize( zSize );
column.front() = botNode;
column.back() = topNode;
}
// Create top faces
const bool oldSetElemsOnShape = myHelper->SetElementsOnShape( false );
// care of orientation;
// if the bottom faces is orienetd OK then top faces must be reversed
bool reverseTop = true;
if ( myHelper->NbAncestors( botFace, *myBlock.Mesh(), TopAbs_SOLID ) > 1 )
reverseTop = ! myHelper->IsReversedSubMesh( TopoDS::Face( botFace ));
int iFrw, iRev, *iPtr = &( reverseTop ? iRev : iFrw );
// loop on bottom mesh faces
SMDS_ElemIteratorPtr faceIt = botSMDS->GetElements();
vector< const SMDS_MeshNode* > nodes;
while ( faceIt->more() )
{
const SMDS_MeshElement* face = faceIt->next();
if ( !face || face->GetType() != SMDSAbs_Face )
continue;
// find top node in columns for each bottom node
int nbNodes = face->NbCornerNodes();
nodes.resize( nbNodes );
for ( iFrw = 0, iRev = nbNodes-1; iFrw < nbNodes; ++iFrw, --iRev )
{
const SMDS_MeshNode* n = face->GetNode( *iPtr );
if ( n->GetPosition()->GetTypeOfPosition() == SMDS_TOP_FACE ) {
TNode2ColumnMap::iterator bot_column = myBotToColumnMap.find( n );
if ( bot_column == myBotToColumnMap.end() )
return toSM( error(TCom("No nodes found above node ") << n->GetID() ));
nodes[ iFrw ] = bot_column->second.back();
}
else {
const TNodeColumn* column = myBlock.GetNodeColumn( n );
if ( !column )
return toSM( error(TCom("No side nodes found above node ") << n->GetID() ));
nodes[ iFrw ] = column->back();
}
}
SMDS_MeshElement* newFace = 0;
switch ( nbNodes ) {
case 3: {
newFace = myHelper->AddFace(nodes[0], nodes[1], nodes[2]);
break;
}
case 4: {
newFace = myHelper->AddFace( nodes[0], nodes[1], nodes[2], nodes[3] );
break;
}
default:
newFace = meshDS->AddPolygonalFace( nodes );
}
if ( newFace )
meshDS->SetMeshElementOnShape( newFace, topFaceID );
}
myHelper->SetElementsOnShape( oldSetElemsOnShape );
return true;
}
//=======================================================================
//function : project2dMesh
//purpose : Project mesh faces from a source FACE of one prism (theSrcFace)
// to a source FACE of another prism (theTgtFace)
//=======================================================================
bool StdMeshers_Prism_3D::project2dMesh(const TopoDS_Face& theSrcFace,
const TopoDS_Face& theTgtFace)
{
TProjction2dAlgo* projector2D = TProjction2dAlgo::instance( this );
projector2D->myHyp.SetSourceFace( theSrcFace );
bool ok = projector2D->Compute( *myHelper->GetMesh(), theTgtFace );
SMESH_subMesh* tgtSM = myHelper->GetMesh()->GetSubMesh( theTgtFace );
tgtSM->ComputeStateEngine ( SMESH_subMesh::CHECK_COMPUTE_STATE );
tgtSM->ComputeSubMeshStateEngine( SMESH_subMesh::CHECK_COMPUTE_STATE );
return ok;
}
//================================================================================
/*!
* \brief Set projection coordinates of a node to a face and it's sub-shapes
* \param faceID - the face given by in-block ID
* \param params - node normalized parameters
* \retval bool - is a success
*/
//================================================================================
bool StdMeshers_Prism_3D::setFaceAndEdgesXYZ( const int faceID, const gp_XYZ& params, int z )
{
// find base and top edges of the face
enum { BASE = 0, TOP, LEFT, RIGHT };
vector< int > edgeVec; // 0-base, 1-top
SMESH_Block::GetFaceEdgesIDs( faceID, edgeVec );
myBlock.EdgePoint( edgeVec[ BASE ], params, myShapeXYZ[ edgeVec[ BASE ]]);
myBlock.EdgePoint( edgeVec[ TOP ], params, myShapeXYZ[ edgeVec[ TOP ]]);
SHOWYXZ("\nparams ", params);
SHOWYXZ("TOP is " <<edgeVec[ TOP ], myShapeXYZ[ edgeVec[ TOP]]);
SHOWYXZ("BASE is "<<edgeVec[ BASE], myShapeXYZ[ edgeVec[ BASE]]);
if ( faceID == SMESH_Block::ID_Fx0z || faceID == SMESH_Block::ID_Fx1z )
{
myBlock.EdgePoint( edgeVec[ LEFT ], params, myShapeXYZ[ edgeVec[ LEFT ]]);
myBlock.EdgePoint( edgeVec[ RIGHT ], params, myShapeXYZ[ edgeVec[ RIGHT ]]);
SHOWYXZ("VER "<<edgeVec[ LEFT], myShapeXYZ[ edgeVec[ LEFT]]);
SHOWYXZ("VER "<<edgeVec[ RIGHT], myShapeXYZ[ edgeVec[ RIGHT]]);
}
myBlock.FacePoint( faceID, params, myShapeXYZ[ faceID ]);
SHOWYXZ("FacePoint "<<faceID, myShapeXYZ[ faceID]);
return true;
}
//=======================================================================
//function : toSM
//purpose : If (!isOK), sets the error to a sub-mesh of a current SOLID
//=======================================================================
bool StdMeshers_Prism_3D::toSM( bool isOK )
{
if ( mySetErrorToSM &&
!isOK &&
myHelper &&
!myHelper->GetSubShape().IsNull() &&
myHelper->GetSubShape().ShapeType() == TopAbs_SOLID)
{
SMESH_subMesh* sm = myHelper->GetMesh()->GetSubMesh( myHelper->GetSubShape() );
sm->GetComputeError() = this->GetComputeError();
// clear error in order not to return it twice
_error = COMPERR_OK;
_comment.clear();
}
return isOK;
}
//=======================================================================
//function : shapeID
//purpose : Return index of a shape
//=======================================================================
int StdMeshers_Prism_3D::shapeID( const TopoDS_Shape& S )
{
if ( S.IsNull() ) return 0;
if ( !myHelper ) return -3;
return myHelper->GetMeshDS()->ShapeToIndex( S );
}
namespace Prism_3D
{
//================================================================================
/*!
* \brief Return true if this node and other one belong to one face
*/
//================================================================================
bool Prism_3D::TNode::IsNeighbor( const Prism_3D::TNode& other ) const
{
if ( !other.myNode || !myNode ) return false;
SMDS_ElemIteratorPtr fIt = other.myNode->GetInverseElementIterator(SMDSAbs_Face);
while ( fIt->more() )
if ( fIt->next()->GetNodeIndex( myNode ) >= 0 )
return true;
return false;
}
//================================================================================
/*!
* \brief Prism initialization
*/
//================================================================================
void TPrismTopo::Clear()
{
myShape3D.Nullify();
myTop.Nullify();
myBottom.Nullify();
myWallQuads.clear();
myBottomEdges.clear();
myNbEdgesInWires.clear();
myWallQuads.clear();
}
} // namespace Prism_3D
//================================================================================
/*!
* \brief Constructor. Initialization is needed
*/
//================================================================================
StdMeshers_PrismAsBlock::StdMeshers_PrismAsBlock()
{
mySide = 0;
}
StdMeshers_PrismAsBlock::~StdMeshers_PrismAsBlock()
{
Clear();
}
void StdMeshers_PrismAsBlock::Clear()
{
myHelper = 0;
myShapeIDMap.Clear();
myError.reset();
if ( mySide ) {
delete mySide; mySide = 0;
}
myParam2ColumnMaps.clear();
myShapeIndex2ColumnMap.clear();
}
//=======================================================================
//function : initPrism
//purpose : Analyse shape geometry and mesh.
// If there are triangles on one of faces, it becomes 'bottom'.
// thePrism.myBottom can be already set up.
//=======================================================================
bool StdMeshers_Prism_3D::initPrism(Prism_3D::TPrismTopo& thePrism,
const TopoDS_Shape& shape3D)
{
myHelper->SetSubShape( shape3D );
SMESH_subMesh* mainSubMesh = myHelper->GetMesh()->GetSubMeshContaining( shape3D );
if ( !mainSubMesh ) return toSM( error(COMPERR_BAD_INPUT_MESH,"Null submesh of shape3D"));
// detect not-quad FACE sub-meshes of the 3D SHAPE
list< SMESH_subMesh* > notQuadGeomSubMesh;
list< SMESH_subMesh* > notQuadElemSubMesh;
int nbFaces = 0;
//
SMESH_subMesh* anyFaceSM = 0;
SMESH_subMeshIteratorPtr smIt = mainSubMesh->getDependsOnIterator(false,true);
while ( smIt->more() )
{
SMESH_subMesh* sm = smIt->next();
const TopoDS_Shape& face = sm->GetSubShape();
if ( face.ShapeType() > TopAbs_FACE ) break;
else if ( face.ShapeType() < TopAbs_FACE ) continue;
nbFaces++;
anyFaceSM = sm;
// is quadrangle FACE?
list< TopoDS_Edge > orderedEdges;
list< int > nbEdgesInWires;
int nbWires = SMESH_Block::GetOrderedEdges( TopoDS::Face( face ), orderedEdges,
nbEdgesInWires );
if ( nbWires != 1 || nbEdgesInWires.front() != 4 )
notQuadGeomSubMesh.push_back( sm );
// look for not quadrangle mesh elements
if ( SMESHDS_SubMesh* smDS = sm->GetSubMeshDS() )
if ( !myHelper->IsSameElemGeometry( smDS, SMDSGeom_QUADRANGLE ))
notQuadElemSubMesh.push_back( sm );
}
int nbNotQuadMeshed = notQuadElemSubMesh.size();
int nbNotQuad = notQuadGeomSubMesh.size();
bool hasNotQuad = ( nbNotQuad || nbNotQuadMeshed );
// detect bad cases
if ( nbNotQuadMeshed > 2 )
{
return toSM( error(COMPERR_BAD_INPUT_MESH,
TCom("More than 2 faces with not quadrangle elements: ")
<<nbNotQuadMeshed));
}
if ( nbNotQuad > 2 || !thePrism.myBottom.IsNull() )
{
// Issue 0020843 - one of side FACEs is quasi-quadrilateral (not 4 EDGEs).
// Remove from notQuadGeomSubMesh faces meshed with regular grid
int nbQuasiQuads = removeQuasiQuads( notQuadGeomSubMesh, myHelper,
TQuadrangleAlgo::instance(this,myHelper) );
nbNotQuad -= nbQuasiQuads;
if ( nbNotQuad > 2 )
return toSM( error(COMPERR_BAD_SHAPE,
TCom("More than 2 not quadrilateral faces: ") <<nbNotQuad));
hasNotQuad = ( nbNotQuad || nbNotQuadMeshed );
}
// Analyse mesh and topology of FACEs: choose the bottom sub-mesh.
// If there are not quadrangle FACEs, they are top and bottom ones.
// Not quadrangle FACEs must be only on top and bottom.
SMESH_subMesh * botSM = 0;
SMESH_subMesh * topSM = 0;
if ( hasNotQuad ) // can chose a bottom FACE
{
if ( nbNotQuadMeshed > 0 ) botSM = notQuadElemSubMesh.front();
else botSM = notQuadGeomSubMesh.front();
if ( nbNotQuadMeshed > 1 ) topSM = notQuadElemSubMesh.back();
else if ( nbNotQuad > 1 ) topSM = notQuadGeomSubMesh.back();
if ( topSM == botSM ) {
if ( nbNotQuadMeshed > 1 ) topSM = notQuadElemSubMesh.front();
else topSM = notQuadGeomSubMesh.front();
}
// detect mesh triangles on wall FACEs
if ( nbNotQuad == 2 && nbNotQuadMeshed > 0 ) {
bool ok = false;
if ( nbNotQuadMeshed == 1 )
ok = ( find( notQuadGeomSubMesh.begin(),
notQuadGeomSubMesh.end(), botSM ) != notQuadGeomSubMesh.end() );
else
ok = ( notQuadGeomSubMesh == notQuadElemSubMesh );
if ( !ok )
return toSM( error(COMPERR_BAD_INPUT_MESH,
"Side face meshed with not quadrangle elements"));
}
}
thePrism.myNotQuadOnTop = ( nbNotQuadMeshed > 1 );
// use thePrism.myBottom
if ( !thePrism.myBottom.IsNull() )
{
if ( botSM ) {
if ( ! botSM->GetSubShape().IsSame( thePrism.myBottom )) {
std::swap( botSM, topSM );
if ( ! botSM->GetSubShape().IsSame( thePrism.myBottom ))
return toSM( error( COMPERR_BAD_INPUT_MESH,
"Incompatible non-structured sub-meshes"));
}
}
else {
botSM = myHelper->GetMesh()->GetSubMesh( thePrism.myBottom );
}
}
else if ( !botSM ) // find a proper bottom
{
// composite walls or not prism shape
for ( TopExp_Explorer f( shape3D, TopAbs_FACE ); f.More(); f.Next() )
{
int minNbFaces = 2 + myHelper->Count( f.Current(), TopAbs_EDGE, false);
if ( nbFaces >= minNbFaces)
{
thePrism.Clear();
thePrism.myBottom = TopoDS::Face( f.Current() );
if ( initPrism( thePrism, shape3D ))
return true;
}
return toSM( error( COMPERR_BAD_SHAPE ));
}
}
// find vertex 000 - the one with smallest coordinates (for easy DEBUG :-)
TopoDS_Vertex V000;
double minVal = DBL_MAX, minX, val;
for ( TopExp_Explorer exp( botSM->GetSubShape(), TopAbs_VERTEX );
exp.More(); exp.Next() )
{
const TopoDS_Vertex& v = TopoDS::Vertex( exp.Current() );
gp_Pnt P = BRep_Tool::Pnt( v );
val = P.X() + P.Y() + P.Z();
if ( val < minVal || ( val == minVal && P.X() < minX )) {
V000 = v;
minVal = val;
minX = P.X();
}
}
thePrism.myShape3D = shape3D;
if ( thePrism.myBottom.IsNull() )
thePrism.myBottom = TopoDS::Face( botSM->GetSubShape() );
thePrism.myBottom.Orientation( myHelper->GetSubShapeOri( shape3D,
thePrism.myBottom ));
// Get ordered bottom edges
TopoDS_Face reverseBottom = // to have order of top EDGEs as in the top FACE
TopoDS::Face( thePrism.myBottom.Reversed() );
SMESH_Block::GetOrderedEdges( reverseBottom,
thePrism.myBottomEdges,
thePrism.myNbEdgesInWires, V000 );
// Get Wall faces corresponding to the ordered bottom edges and the top FACE
if ( !getWallFaces( thePrism, nbFaces ))
return false; //toSM( error(COMPERR_BAD_SHAPE, "Can't find side faces"));
if ( topSM )
{
if ( !thePrism.myTop.IsSame( topSM->GetSubShape() ))
return toSM( error
(notQuadGeomSubMesh.empty() ? COMPERR_BAD_INPUT_MESH : COMPERR_BAD_SHAPE,
"Non-quadrilateral faces are not opposite"));
// check that the found top and bottom FACEs are opposite
list< TopoDS_Edge >::iterator edge = thePrism.myBottomEdges.begin();
for ( ; edge != thePrism.myBottomEdges.end(); ++edge )
if ( myHelper->IsSubShape( *edge, thePrism.myTop ))
return toSM( error
(notQuadGeomSubMesh.empty() ? COMPERR_BAD_INPUT_MESH : COMPERR_BAD_SHAPE,
"Non-quadrilateral faces are not opposite"));
}
return true;
}
//================================================================================
/*!
* \brief Initialization.
* \param helper - helper loaded with mesh and 3D shape
* \param thePrism - a prosm data
* \retval bool - false if a mesh or a shape are KO
*/
//================================================================================
bool StdMeshers_PrismAsBlock::Init(SMESH_MesherHelper* helper,
const Prism_3D::TPrismTopo& thePrism)
{
if ( mySide ) {
delete mySide; mySide = 0;
}
vector< TSideFace* > sideFaces( NB_WALL_FACES, 0 );
vector< pair< double, double> > params( NB_WALL_FACES );
mySide = new TSideFace( sideFaces, params );
myHelper = helper;
SMESHDS_Mesh* meshDS = myHelper->GetMeshDS();
SMESH_Block::init();
myShapeIDMap.Clear();
myShapeIndex2ColumnMap.clear();
int wallFaceIds[ NB_WALL_FACES ] = { // to walk around a block
SMESH_Block::ID_Fx0z, SMESH_Block::ID_F1yz,
SMESH_Block::ID_Fx1z, SMESH_Block::ID_F0yz
};
myError = SMESH_ComputeError::New();
myNotQuadOnTop = thePrism.myNotQuadOnTop;
// Find columns of wall nodes and calculate edges' lengths
// --------------------------------------------------------
myParam2ColumnMaps.clear();
myParam2ColumnMaps.resize( thePrism.myBottomEdges.size() ); // total nb edges
size_t iE, nbEdges = thePrism.myNbEdgesInWires.front(); // nb outer edges
vector< double > edgeLength( nbEdges );
multimap< double, int > len2edgeMap;
list< TopoDS_Edge >::const_iterator edgeIt = thePrism.myBottomEdges.begin();
for ( iE = 0; iE < nbEdges; ++iE, ++edgeIt )
{
TParam2ColumnMap & faceColumns = myParam2ColumnMaps[ iE ];
Prism_3D::TQuadList::const_iterator quad = thePrism.myWallQuads[ iE ].begin();
for ( ; quad != thePrism.myWallQuads[ iE ].end(); ++quad )
{
const TopoDS_Edge& quadBot = (*quad)->side[ QUAD_BOTTOM_SIDE ]->Edge( 0 );
if ( !myHelper->LoadNodeColumns( faceColumns, (*quad)->face, quadBot, meshDS ))
return error(COMPERR_BAD_INPUT_MESH, TCom("Can't find regular quadrangle mesh ")
<< "on a side face #" << MeshDS()->ShapeToIndex( (*quad)->face ));
}
SHOWYXZ("\np1 F " <<iE, gpXYZ(faceColumns.begin()->second.front() ));
SHOWYXZ("p2 F " <<iE, gpXYZ(faceColumns.rbegin()->second.front() ));
SHOWYXZ("V First "<<iE, BRep_Tool::Pnt( TopExp::FirstVertex(*edgeIt,true )));
edgeLength[ iE ] = SMESH_Algo::EdgeLength( *edgeIt );
if ( nbEdges < NB_WALL_FACES ) // fill map used to split faces
{
SMESHDS_SubMesh* smDS = meshDS->MeshElements( *edgeIt);
if ( !smDS )
return error(COMPERR_BAD_INPUT_MESH, TCom("Null submesh on the edge #")
<< MeshDS()->ShapeToIndex( *edgeIt ));
len2edgeMap.insert( make_pair( edgeLength[ iE ], iE ));
}
}
// Load columns of internal edges (forming holes)
// and fill map ShapeIndex to TParam2ColumnMap for them
for ( ; edgeIt != thePrism.myBottomEdges.end() ; ++edgeIt, ++iE )
{
TParam2ColumnMap & faceColumns = myParam2ColumnMaps[ iE ];
Prism_3D::TQuadList::const_iterator quad = thePrism.myWallQuads[ iE ].begin();
for ( ; quad != thePrism.myWallQuads[ iE ].end(); ++quad )
{
const TopoDS_Edge& quadBot = (*quad)->side[ QUAD_BOTTOM_SIDE ]->Edge( 0 );
if ( !myHelper->LoadNodeColumns( faceColumns, (*quad)->face, quadBot, meshDS ))
return error(COMPERR_BAD_INPUT_MESH, TCom("Can't find regular quadrangle mesh ")
<< "on a side face #" << MeshDS()->ShapeToIndex( (*quad)->face ));
}
// edge columns
int id = MeshDS()->ShapeToIndex( *edgeIt );
bool isForward = true; // meaningless for intenal wires
myShapeIndex2ColumnMap[ id ] = make_pair( & faceColumns, isForward );
// columns for vertices
// 1
const SMDS_MeshNode* n0 = faceColumns.begin()->second.front();
id = n0->getshapeId();
myShapeIndex2ColumnMap[ id ] = make_pair( & faceColumns, isForward );
// 2
const SMDS_MeshNode* n1 = faceColumns.rbegin()->second.front();
id = n1->getshapeId();
myShapeIndex2ColumnMap[ id ] = make_pair( & faceColumns, isForward );
// SHOWYXZ("\np1 F " <<iE, gpXYZ(faceColumns.begin()->second.front() ));
// SHOWYXZ("p2 F " <<iE, gpXYZ(faceColumns.rbegin()->second.front() ));
// SHOWYXZ("V First "<<iE, BRep_Tool::Pnt( TopExp::FirstVertex(*edgeIt,true )));
}
// Create 4 wall faces of a block
// -------------------------------
if ( nbEdges <= NB_WALL_FACES ) // ************* Split faces if necessary
{
map< int, int > iE2nbSplit;
if ( nbEdges != NB_WALL_FACES ) // define how to split
{
if ( len2edgeMap.size() != nbEdges )
RETURN_BAD_RESULT("Uniqueness of edge lengths not assured");
multimap< double, int >::reverse_iterator maxLen_i = len2edgeMap.rbegin();
multimap< double, int >::reverse_iterator midLen_i = ++len2edgeMap.rbegin();
double maxLen = maxLen_i->first;
double midLen = ( len2edgeMap.size() == 1 ) ? 0 : midLen_i->first;
switch ( nbEdges ) {
case 1: // 0-th edge is split into 4 parts
iE2nbSplit.insert( make_pair( 0, 4 )); break;
case 2: // either the longest edge is split into 3 parts, or both edges into halves
if ( maxLen / 3 > midLen / 2 ) {
iE2nbSplit.insert( make_pair( maxLen_i->second, 3 ));
}
else {
iE2nbSplit.insert( make_pair( maxLen_i->second, 2 ));
iE2nbSplit.insert( make_pair( midLen_i->second, 2 ));
}
break;
case 3:
// split longest into halves
iE2nbSplit.insert( make_pair( maxLen_i->second, 2 ));
}
}
// Create TSideFace's
int iSide = 0;
list< TopoDS_Edge >::const_iterator botE = thePrism.myBottomEdges.begin();
for ( iE = 0; iE < nbEdges; ++iE, ++botE )
{
TFaceQuadStructPtr quad = thePrism.myWallQuads[ iE ].front();
// split?
map< int, int >::iterator i_nb = iE2nbSplit.find( iE );
if ( i_nb != iE2nbSplit.end() ) {
// split!
int nbSplit = i_nb->second;
vector< double > params;
splitParams( nbSplit, &myParam2ColumnMaps[ iE ], params );
const bool isForward =
StdMeshers_PrismAsBlock::IsForwardEdge( myHelper->GetMeshDS(),
myParam2ColumnMaps[iE],
*botE, SMESH_Block::ID_Fx0z );
for ( int i = 0; i < nbSplit; ++i ) {
double f = ( isForward ? params[ i ] : params[ nbSplit - i-1 ]);
double l = ( isForward ? params[ i+1 ] : params[ nbSplit - i ]);
TSideFace* comp = new TSideFace( myHelper, wallFaceIds[ iSide ],
thePrism.myWallQuads[ iE ], *botE,
&myParam2ColumnMaps[ iE ], f, l );
mySide->SetComponent( iSide++, comp );
}
}
else {
TSideFace* comp = new TSideFace( myHelper, wallFaceIds[ iSide ],
thePrism.myWallQuads[ iE ], *botE,
&myParam2ColumnMaps[ iE ]);
mySide->SetComponent( iSide++, comp );
}
}
}
else { // **************************** Unite faces
// unite first faces
int nbExraFaces = nbEdges - 3;
int iSide = 0, iE;
double u0 = 0, sumLen = 0;
for ( iE = 0; iE < nbExraFaces; ++iE )
sumLen += edgeLength[ iE ];
vector< TSideFace* > components( nbExraFaces );
vector< pair< double, double> > params( nbExraFaces );
list< TopoDS_Edge >::const_iterator botE = thePrism.myBottomEdges.begin();
for ( iE = 0; iE < nbExraFaces; ++iE, ++botE )
{
components[ iE ] = new TSideFace( myHelper, wallFaceIds[ iSide ],
thePrism.myWallQuads[ iE ], *botE,
&myParam2ColumnMaps[ iE ]);
double u1 = u0 + edgeLength[ iE ] / sumLen;
params[ iE ] = make_pair( u0 , u1 );
u0 = u1;
}
mySide->SetComponent( iSide++, new TSideFace( components, params ));
// fill the rest faces
for ( ; iE < nbEdges; ++iE, ++botE )
{
TSideFace* comp = new TSideFace( myHelper, wallFaceIds[ iSide ],
thePrism.myWallQuads[ iE ], *botE,
&myParam2ColumnMaps[ iE ]);
mySide->SetComponent( iSide++, comp );
}
}
// Fill geometry fields of SMESH_Block
// ------------------------------------
vector< int > botEdgeIdVec;
SMESH_Block::GetFaceEdgesIDs( ID_BOT_FACE, botEdgeIdVec );
bool isForward[NB_WALL_FACES] = { true, true, true, true };
Adaptor2d_Curve2d* botPcurves[NB_WALL_FACES];
Adaptor2d_Curve2d* topPcurves[NB_WALL_FACES];
for ( int iF = 0; iF < NB_WALL_FACES; ++iF )
{
TSideFace * sideFace = mySide->GetComponent( iF );
if ( !sideFace )
RETURN_BAD_RESULT("NULL TSideFace");
int fID = sideFace->FaceID(); // in-block ID
// fill myShapeIDMap
if ( sideFace->InsertSubShapes( myShapeIDMap ) != 8 &&
!sideFace->IsComplex())
MESSAGE( ": Warning : InsertSubShapes() < 8 on side " << iF );
// side faces geometry
Adaptor2d_Curve2d* pcurves[NB_WALL_FACES];
if ( !sideFace->GetPCurves( pcurves ))
RETURN_BAD_RESULT("TSideFace::GetPCurves() failed");
SMESH_Block::TFace& tFace = myFace[ fID - ID_FirstF ];
tFace.Set( fID, sideFace->Surface(), pcurves, isForward );
SHOWYXZ( endl<<"F "<< iF << " id " << fID << " FRW " << sideFace->IsForward(), sideFace->Value(0,0));
// edges 3D geometry
vector< int > edgeIdVec;
SMESH_Block::GetFaceEdgesIDs( fID, edgeIdVec );
for ( int isMax = 0; isMax < 2; ++isMax ) {
{
int eID = edgeIdVec[ isMax ];
SMESH_Block::TEdge& tEdge = myEdge[ eID - ID_FirstE ];
tEdge.Set( eID, sideFace->HorizCurve(isMax), true);
SHOWYXZ(eID<<" HOR"<<isMax<<"(0)", sideFace->HorizCurve(isMax)->Value(0));
SHOWYXZ(eID<<" HOR"<<isMax<<"(1)", sideFace->HorizCurve(isMax)->Value(1));
}
{
int eID = edgeIdVec[ isMax+2 ];
SMESH_Block::TEdge& tEdge = myEdge[ eID - ID_FirstE ];
tEdge.Set( eID, sideFace->VertiCurve(isMax), true);
SHOWYXZ(eID<<" VER"<<isMax<<"(0)", sideFace->VertiCurve(isMax)->Value(0));
SHOWYXZ(eID<<" VER"<<isMax<<"(1)", sideFace->VertiCurve(isMax)->Value(1));
// corner points
vector< int > vertexIdVec;
SMESH_Block::GetEdgeVertexIDs( eID, vertexIdVec );
myPnt[ vertexIdVec[0] - ID_FirstV ] = tEdge.GetCurve()->Value(0).XYZ();
myPnt[ vertexIdVec[1] - ID_FirstV ] = tEdge.GetCurve()->Value(1).XYZ();
}
}
// pcurves on horizontal faces
for ( iE = 0; iE < NB_WALL_FACES; ++iE ) {
if ( edgeIdVec[ BOTTOM_EDGE ] == botEdgeIdVec[ iE ] ) {
botPcurves[ iE ] = sideFace->HorizPCurve( false, thePrism.myBottom );
topPcurves[ iE ] = sideFace->HorizPCurve( true, thePrism.myTop );
break;
}
}
//sideFace->dumpNodes( 4 ); // debug
}
// horizontal faces geometry
{
SMESH_Block::TFace& tFace = myFace[ ID_BOT_FACE - ID_FirstF ];
tFace.Set( ID_BOT_FACE, new BRepAdaptor_Surface( thePrism.myBottom ), botPcurves, isForward );
SMESH_Block::Insert( thePrism.myBottom, ID_BOT_FACE, myShapeIDMap );
}
{
SMESH_Block::TFace& tFace = myFace[ ID_TOP_FACE - ID_FirstF ];
tFace.Set( ID_TOP_FACE, new BRepAdaptor_Surface( thePrism.myTop ), topPcurves, isForward );
SMESH_Block::Insert( thePrism.myTop, ID_TOP_FACE, myShapeIDMap );
}
// Fill map ShapeIndex to TParam2ColumnMap
// ----------------------------------------
list< TSideFace* > fList;
list< TSideFace* >::iterator fListIt;
fList.push_back( mySide );
for ( fListIt = fList.begin(); fListIt != fList.end(); ++fListIt)
{
int nb = (*fListIt)->NbComponents();
for ( int i = 0; i < nb; ++i ) {
if ( TSideFace* comp = (*fListIt)->GetComponent( i ))
fList.push_back( comp );
}
if ( TParam2ColumnMap* cols = (*fListIt)->GetColumns()) {
// columns for a base edge
int id = MeshDS()->ShapeToIndex( (*fListIt)->BaseEdge() );
bool isForward = (*fListIt)->IsForward();
myShapeIndex2ColumnMap[ id ] = make_pair( cols, isForward );
// columns for vertices
const SMDS_MeshNode* n0 = cols->begin()->second.front();
id = n0->getshapeId();
myShapeIndex2ColumnMap[ id ] = make_pair( cols, isForward );
const SMDS_MeshNode* n1 = cols->rbegin()->second.front();
id = n1->getshapeId();
myShapeIndex2ColumnMap[ id ] = make_pair( cols, !isForward );
}
}
// gp_XYZ testPar(0.25, 0.25, 0), testCoord;
// if ( !FacePoint( ID_BOT_FACE, testPar, testCoord ))
// RETURN_BAD_RESULT("TEST FacePoint() FAILED");
// SHOWYXZ("IN TEST PARAM" , testPar);
// SHOWYXZ("OUT TEST CORD" , testCoord);
// if ( !ComputeParameters( testCoord, testPar , ID_BOT_FACE))
// RETURN_BAD_RESULT("TEST ComputeParameters() FAILED");
// SHOWYXZ("OUT TEST PARAM" , testPar);
return true;
}
//================================================================================
/*!
* \brief Return pointer to column of nodes
* \param node - bottom node from which the returned column goes up
* \retval const TNodeColumn* - the found column
*/
//================================================================================
const TNodeColumn* StdMeshers_PrismAsBlock::GetNodeColumn(const SMDS_MeshNode* node) const
{
int sID = node->getshapeId();
map<int, pair< TParam2ColumnMap*, bool > >::const_iterator col_frw =
myShapeIndex2ColumnMap.find( sID );
if ( col_frw != myShapeIndex2ColumnMap.end() ) {
const TParam2ColumnMap* cols = col_frw->second.first;
TParam2ColumnIt u_col = cols->begin();
for ( ; u_col != cols->end(); ++u_col )
if ( u_col->second[ 0 ] == node )
return & u_col->second;
}
return 0;
}
//=======================================================================
//function : GetLayersTransformation
//purpose : Return transformations to get coordinates of nodes of each layer
// by nodes of the bottom. Layer is a set of nodes at a certain step
// from bottom to top.
//=======================================================================
bool StdMeshers_PrismAsBlock::GetLayersTransformation(vector<gp_Trsf> & trsf,
const Prism_3D::TPrismTopo& prism) const
{
const int zSize = VerticalSize();
if ( zSize < 3 ) return true;
trsf.resize( zSize - 2 );
// Select some node columns by which we will define coordinate system of layers
vector< const TNodeColumn* > columns;
{
bool isReverse;
list< TopoDS_Edge >::const_iterator edgeIt = prism.myBottomEdges.begin();
for ( int iE = 0; iE < prism.myNbEdgesInWires.front(); ++iE, ++edgeIt )
{
if ( BRep_Tool::Degenerated( *edgeIt )) continue;
const TParam2ColumnMap* u2colMap =
GetParam2ColumnMap( MeshDS()->ShapeToIndex( *edgeIt ), isReverse );
if ( !u2colMap ) return false;
double f = u2colMap->begin()->first, l = u2colMap->rbegin()->first;
//isReverse = ( edgeIt->Orientation() == TopAbs_REVERSED );
//if ( isReverse ) swap ( f, l ); -- u2colMap takes orientation into account
const int nbCol = 5;
for ( int i = 0; i < nbCol; ++i )
{
double u = f + i/double(nbCol) * ( l - f );
const TNodeColumn* col = & getColumn( u2colMap, u )->second;
if ( columns.empty() || col != columns.back() )
columns.push_back( col );
}
}
}
// Find tolerance to check transformations
double tol2;
{
Bnd_B3d bndBox;
for ( int i = 0; i < columns.size(); ++i )
bndBox.Add( gpXYZ( columns[i]->front() ));
tol2 = bndBox.SquareExtent() * 1e-5;
}
// Compute transformations
int xCol = -1;
gp_Trsf fromCsZ, toCs0;
gp_Ax3 cs0 = getLayerCoordSys(0, columns, xCol );
//double dist0 = cs0.Location().Distance( gpXYZ( (*columns[0])[0]));
toCs0.SetTransformation( cs0 );
for ( int z = 1; z < zSize-1; ++z )
{
gp_Ax3 csZ = getLayerCoordSys(z, columns, xCol );
//double distZ = csZ.Location().Distance( gpXYZ( (*columns[0])[z]));
fromCsZ.SetTransformation( csZ );
fromCsZ.Invert();
gp_Trsf& t = trsf[ z-1 ];
t = fromCsZ * toCs0;
//t.SetScaleFactor( distZ/dist0 ); - it does not work properly, wrong base point
// check a transformation
for ( int i = 0; i < columns.size(); ++i )
{
gp_Pnt p0 = gpXYZ( (*columns[i])[0] );
gp_Pnt pz = gpXYZ( (*columns[i])[z] );
t.Transforms( p0.ChangeCoord() );
if ( p0.SquareDistance( pz ) > tol2 )
return false;
}
}
return true;
}
//================================================================================
/*!
* \brief Check curve orientation of a bootom edge
* \param meshDS - mesh DS
* \param columnsMap - node columns map of side face
* \param bottomEdge - the bootom edge
* \param sideFaceID - side face in-block ID
* \retval bool - true if orientation coinside with in-block forward orientation
*/
//================================================================================
bool StdMeshers_PrismAsBlock::IsForwardEdge(SMESHDS_Mesh* meshDS,
const TParam2ColumnMap& columnsMap,
const TopoDS_Edge & bottomEdge,
const int sideFaceID)
{
bool isForward = false;
if ( SMESH_MesherHelper::IsClosedEdge( bottomEdge ))
{
isForward = ( bottomEdge.Orientation() == TopAbs_FORWARD );
}
else
{
const TNodeColumn& firstCol = columnsMap.begin()->second;
const SMDS_MeshNode* bottomNode = firstCol[0];
TopoDS_Shape firstVertex = SMESH_MesherHelper::GetSubShapeByNode( bottomNode, meshDS );
isForward = ( firstVertex.IsSame( TopExp::FirstVertex( bottomEdge, true )));
}
// on 2 of 4 sides first vertex is end
if ( sideFaceID == ID_Fx1z || sideFaceID == ID_F0yz )
isForward = !isForward;
return isForward;
}
//================================================================================
/*!
* \brief Constructor
* \param faceID - in-block ID
* \param face - geom FACE
* \param baseEdge - EDGE proreply oriented in the bottom EDGE !!!
* \param columnsMap - map of node columns
* \param first - first normalized param
* \param last - last normalized param
*/
//================================================================================
StdMeshers_PrismAsBlock::TSideFace::TSideFace(SMESH_MesherHelper* helper,
const int faceID,
const Prism_3D::TQuadList& quadList,
const TopoDS_Edge& baseEdge,
TParam2ColumnMap* columnsMap,
const double first,
const double last):
myID( faceID ),
myParamToColumnMap( columnsMap ),
myHelper( helper )
{
myParams.resize( 1 );
myParams[ 0 ] = make_pair( first, last );
mySurface = PSurface( new BRepAdaptor_Surface( quadList.front()->face ));
myBaseEdge = baseEdge;
myIsForward = StdMeshers_PrismAsBlock::IsForwardEdge( myHelper->GetMeshDS(),
*myParamToColumnMap,
myBaseEdge, myID );
if ( quadList.size() > 1 ) // side is vertically composite
{
// fill myShapeID2Surf map to enable finding a right surface by any sub-shape ID
SMESHDS_Mesh* meshDS = myHelper->GetMeshDS();
TopTools_IndexedDataMapOfShapeListOfShape subToFaces;
Prism_3D::TQuadList::const_iterator quad = quadList.begin();
for ( ; quad != quadList.end(); ++quad )
{
const TopoDS_Face& face = (*quad)->face;
TopExp::MapShapesAndAncestors( face, TopAbs_VERTEX, TopAbs_FACE, subToFaces );
TopExp::MapShapesAndAncestors( face, TopAbs_EDGE, TopAbs_FACE, subToFaces );
myShapeID2Surf.insert( make_pair( meshDS->ShapeToIndex( face ),
PSurface( new BRepAdaptor_Surface( face ))));
}
for ( int i = 1; i <= subToFaces.Extent(); ++i )
{
const TopoDS_Shape& sub = subToFaces.FindKey( i );
TopTools_ListOfShape& faces = subToFaces( i );
int subID = meshDS->ShapeToIndex( sub );
int faceID = meshDS->ShapeToIndex( faces.First() );
myShapeID2Surf.insert ( make_pair( subID, myShapeID2Surf[ faceID ]));
}
}
}
//================================================================================
/*!
* \brief Constructor of complex side face
*/
//================================================================================
StdMeshers_PrismAsBlock::TSideFace::
TSideFace(const vector< TSideFace* >& components,
const vector< pair< double, double> > & params)
:myID( components[0] ? components[0]->myID : 0 ),
myParamToColumnMap( 0 ),
myParams( params ),
myIsForward( true ),
myComponents( components ),
myHelper( components[0] ? components[0]->myHelper : 0 )
{}
//================================================================================
/*!
* \brief Copy constructor
* \param other - other side
*/
//================================================================================
StdMeshers_PrismAsBlock::TSideFace::TSideFace( const TSideFace& other )
{
myID = other.myID;
mySurface = other.mySurface;
myBaseEdge = other.myBaseEdge;
myParams = other.myParams;
myIsForward = other.myIsForward;
myHelper = other.myHelper;
myParamToColumnMap = other.myParamToColumnMap;
myComponents.resize( other.myComponents.size());
for (int i = 0 ; i < myComponents.size(); ++i )
myComponents[ i ] = new TSideFace( *other.myComponents[ i ]);
}
//================================================================================
/*!
* \brief Deletes myComponents
*/
//================================================================================
StdMeshers_PrismAsBlock::TSideFace::~TSideFace()
{
for (int i = 0 ; i < myComponents.size(); ++i )
if ( myComponents[ i ] )
delete myComponents[ i ];
}
//================================================================================
/*!
* \brief Return geometry of the vertical curve
* \param isMax - true means curve located closer to (1,1,1) block point
* \retval Adaptor3d_Curve* - curve adaptor
*/
//================================================================================
Adaptor3d_Curve* StdMeshers_PrismAsBlock::TSideFace::VertiCurve(const bool isMax) const
{
if ( !myComponents.empty() ) {
if ( isMax )
return myComponents.back()->VertiCurve(isMax);
else
return myComponents.front()->VertiCurve(isMax);
}
double f = myParams[0].first, l = myParams[0].second;
if ( !myIsForward ) std::swap( f, l );
return new TVerticalEdgeAdaptor( myParamToColumnMap, isMax ? l : f );
}
//================================================================================
/*!
* \brief Return geometry of the top or bottom curve
* \param isTop -
* \retval Adaptor3d_Curve* -
*/
//================================================================================
Adaptor3d_Curve* StdMeshers_PrismAsBlock::TSideFace::HorizCurve(const bool isTop) const
{
return new THorizontalEdgeAdaptor( this, isTop );
}
//================================================================================
/*!
* \brief Return pcurves
* \param pcurv - array of 4 pcurves
* \retval bool - is a success
*/
//================================================================================
bool StdMeshers_PrismAsBlock::TSideFace::GetPCurves(Adaptor2d_Curve2d* pcurv[4]) const
{
int iEdge[ 4 ] = { BOTTOM_EDGE, TOP_EDGE, V0_EDGE, V1_EDGE };
for ( int i = 0 ; i < 4 ; ++i ) {
Handle(Geom2d_Line) line;
switch ( iEdge[ i ] ) {
case TOP_EDGE:
line = new Geom2d_Line( gp_Pnt2d( 0, 1 ), gp::DX2d() ); break;
case BOTTOM_EDGE:
line = new Geom2d_Line( gp::Origin2d(), gp::DX2d() ); break;
case V0_EDGE:
line = new Geom2d_Line( gp::Origin2d(), gp::DY2d() ); break;
case V1_EDGE:
line = new Geom2d_Line( gp_Pnt2d( 1, 0 ), gp::DY2d() ); break;
}
pcurv[ i ] = new Geom2dAdaptor_Curve( line, 0, 1 );
}
return true;
}
//================================================================================
/*!
* \brief Returns geometry of pcurve on a horizontal face
* \param isTop - is top or bottom face
* \param horFace - a horizontal face
* \retval Adaptor2d_Curve2d* - curve adaptor
*/
//================================================================================
Adaptor2d_Curve2d*
StdMeshers_PrismAsBlock::TSideFace::HorizPCurve(const bool isTop,
const TopoDS_Face& horFace) const
{
return new TPCurveOnHorFaceAdaptor( this, isTop, horFace );
}
//================================================================================
/*!
* \brief Return a component corresponding to parameter
* \param U - parameter along a horizontal size
* \param localU - parameter along a horizontal size of a component
* \retval TSideFace* - found component
*/
//================================================================================
StdMeshers_PrismAsBlock::TSideFace*
StdMeshers_PrismAsBlock::TSideFace::GetComponent(const double U,double & localU) const
{
localU = U;
if ( myComponents.empty() )
return const_cast<TSideFace*>( this );
int i;
for ( i = 0; i < myComponents.size(); ++i )
if ( U < myParams[ i ].second )
break;
if ( i >= myComponents.size() )
i = myComponents.size() - 1;
double f = myParams[ i ].first, l = myParams[ i ].second;
localU = ( U - f ) / ( l - f );
return myComponents[ i ];
}
//================================================================================
/*!
* \brief Find node columns for a parameter
* \param U - parameter along a horizontal edge
* \param col1 - the 1st found column
* \param col2 - the 2nd found column
* \retval r - normalized position of U between the found columns
*/
//================================================================================
double StdMeshers_PrismAsBlock::TSideFace::GetColumns(const double U,
TParam2ColumnIt & col1,
TParam2ColumnIt & col2) const
{
double u = U, r = 0;
if ( !myComponents.empty() ) {
TSideFace * comp = GetComponent(U,u);
return comp->GetColumns( u, col1, col2 );
}
if ( !myIsForward )
u = 1 - u;
double f = myParams[0].first, l = myParams[0].second;
u = f + u * ( l - f );
col1 = col2 = getColumn( myParamToColumnMap, u );
if ( ++col2 == myParamToColumnMap->end() ) {
--col2;
r = 0.5;
}
else {
double uf = col1->first;
double ul = col2->first;
r = ( u - uf ) / ( ul - uf );
}
return r;
}
//================================================================================
/*!
* \brief Return coordinates by normalized params
* \param U - horizontal param
* \param V - vertical param
* \retval gp_Pnt - result point
*/
//================================================================================
gp_Pnt StdMeshers_PrismAsBlock::TSideFace::Value(const Standard_Real U,
const Standard_Real V) const
{
if ( !myComponents.empty() ) {
double u;
TSideFace * comp = GetComponent(U,u);
return comp->Value( u, V );
}
TParam2ColumnIt u_col1, u_col2;
double vR, hR = GetColumns( U, u_col1, u_col2 );
const SMDS_MeshNode* nn[4];
// BEGIN issue 0020680: Bad cell created by Radial prism in center of torus
// Workaround for a wrongly located point returned by mySurface.Value() for
// UV located near boundary of BSpline surface.
// To bypass the problem, we take point from 3D curve of EDGE.
// It solves pb of the bloc_fiss_new.py
const double tol = 1e-3;
if ( V < tol || V+tol >= 1. )
{
nn[0] = V < tol ? u_col1->second.front() : u_col1->second.back();
nn[2] = V < tol ? u_col2->second.front() : u_col2->second.back();
TopoDS_Edge edge;
if ( V < tol )
{
edge = myBaseEdge;
}
else
{
TopoDS_Shape s = myHelper->GetSubShapeByNode( nn[0], myHelper->GetMeshDS() );
if ( s.ShapeType() != TopAbs_EDGE )
s = myHelper->GetSubShapeByNode( nn[2], myHelper->GetMeshDS() );
if ( s.ShapeType() == TopAbs_EDGE )
edge = TopoDS::Edge( s );
}
if ( !edge.IsNull() )
{
double u1 = myHelper->GetNodeU( edge, nn[0] );
double u3 = myHelper->GetNodeU( edge, nn[2] );
double u = u1 * ( 1 - hR ) + u3 * hR;
TopLoc_Location loc; double f,l;
Handle(Geom_Curve) curve = BRep_Tool::Curve( edge,loc,f,l );
return curve->Value( u ).Transformed( loc );
}
}
// END issue 0020680: Bad cell created by Radial prism in center of torus
vR = getRAndNodes( & u_col1->second, V, nn[0], nn[1] );
vR = getRAndNodes( & u_col2->second, V, nn[2], nn[3] );
if ( !myShapeID2Surf.empty() ) // side is vertically composite
{
// find a FACE on which the 4 nodes lie
TSideFace* me = (TSideFace*) this;
int notFaceID1 = 0, notFaceID2 = 0;
for ( int i = 0; i < 4; ++i )
if ( nn[i]->GetPosition()->GetTypeOfPosition() == SMDS_TOP_FACE ) // node on FACE
{
me->mySurface = me->myShapeID2Surf[ nn[i]->getshapeId() ];
notFaceID2 = 0;
break;
}
else if ( notFaceID1 == 0 ) // node on EDGE or VERTEX
{
me->mySurface = me->myShapeID2Surf[ nn[i]->getshapeId() ];
notFaceID1 = nn[i]->getshapeId();
}
else if ( notFaceID1 != nn[i]->getshapeId() ) // node on other EDGE or VERTEX
{
if ( mySurface != me->myShapeID2Surf[ nn[i]->getshapeId() ])
notFaceID2 = nn[i]->getshapeId();
}
if ( notFaceID2 ) // no nodes of FACE and nodes are on different FACEs
{
SMESHDS_Mesh* meshDS = myHelper->GetMeshDS();
TopoDS_Shape face = myHelper->GetCommonAncestor( meshDS->IndexToShape( notFaceID1 ),
meshDS->IndexToShape( notFaceID2 ),
*myHelper->GetMesh(),
TopAbs_FACE );
if ( face.IsNull() )
throw SALOME_Exception("StdMeshers_PrismAsBlock::TSideFace::Value() face.IsNull()");
int faceID = meshDS->ShapeToIndex( face );
me->mySurface = me->myShapeID2Surf[ faceID ];
if ( !mySurface )
throw SALOME_Exception("StdMeshers_PrismAsBlock::TSideFace::Value() !mySurface");
}
}
gp_XY uv1 = myHelper->GetNodeUV( mySurface->Face(), nn[0], nn[2]);
gp_XY uv2 = myHelper->GetNodeUV( mySurface->Face(), nn[1], nn[3]);
gp_XY uv12 = uv1 * ( 1 - vR ) + uv2 * vR;
gp_XY uv3 = myHelper->GetNodeUV( mySurface->Face(), nn[2], nn[0]);
gp_XY uv4 = myHelper->GetNodeUV( mySurface->Face(), nn[3], nn[1]);
gp_XY uv34 = uv3 * ( 1 - vR ) + uv4 * vR;
gp_XY uv = uv12 * ( 1 - hR ) + uv34 * hR;
gp_Pnt p = mySurface->Value( uv.X(), uv.Y() );
return p;
}
//================================================================================
/*!
* \brief Return boundary edge
* \param edge - edge index
* \retval TopoDS_Edge - found edge
*/
//================================================================================
TopoDS_Edge StdMeshers_PrismAsBlock::TSideFace::GetEdge(const int iEdge) const
{
if ( !myComponents.empty() ) {
switch ( iEdge ) {
case V0_EDGE : return myComponents.front()->GetEdge( iEdge );
case V1_EDGE : return myComponents.back() ->GetEdge( iEdge );
default: return TopoDS_Edge();
}
}
TopoDS_Shape edge;
const SMDS_MeshNode* node = 0;
SMESHDS_Mesh * meshDS = myHelper->GetMesh()->GetMeshDS();
TNodeColumn* column;
switch ( iEdge ) {
case TOP_EDGE:
case BOTTOM_EDGE:
column = & (( ++myParamToColumnMap->begin())->second );
node = ( iEdge == TOP_EDGE ) ? column->back() : column->front();
edge = myHelper->GetSubShapeByNode ( node, meshDS );
if ( edge.ShapeType() == TopAbs_VERTEX ) {
column = & ( myParamToColumnMap->begin()->second );
node = ( iEdge == TOP_EDGE ) ? column->back() : column->front();
}
break;
case V0_EDGE:
case V1_EDGE: {
bool back = ( iEdge == V1_EDGE );
if ( !myIsForward ) back = !back;
if ( back )
column = & ( myParamToColumnMap->rbegin()->second );
else
column = & ( myParamToColumnMap->begin()->second );
if ( column->size() > 0 )
edge = myHelper->GetSubShapeByNode( (*column)[ 1 ], meshDS );
if ( edge.IsNull() || edge.ShapeType() == TopAbs_VERTEX )
node = column->front();
break;
}
default:;
}
if ( !edge.IsNull() && edge.ShapeType() == TopAbs_EDGE )
return TopoDS::Edge( edge );
// find edge by 2 vertices
TopoDS_Shape V1 = edge;
TopoDS_Shape V2 = myHelper->GetSubShapeByNode( node, meshDS );
if ( !V2.IsNull() && V2.ShapeType() == TopAbs_VERTEX && !V2.IsSame( V1 ))
{
TopoDS_Shape ancestor = myHelper->GetCommonAncestor( V1, V2, *myHelper->GetMesh(), TopAbs_EDGE);
if ( !ancestor.IsNull() )
return TopoDS::Edge( ancestor );
}
return TopoDS_Edge();
}
//================================================================================
/*!
* \brief Fill block sub-shapes
* \param shapeMap - map to fill in
* \retval int - nb inserted sub-shapes
*/
//================================================================================
int StdMeshers_PrismAsBlock::TSideFace::InsertSubShapes(TBlockShapes& shapeMap) const
{
int nbInserted = 0;
// Insert edges
vector< int > edgeIdVec;
SMESH_Block::GetFaceEdgesIDs( myID, edgeIdVec );
for ( int i = BOTTOM_EDGE; i <=V1_EDGE ; ++i ) {
TopoDS_Edge e = GetEdge( i );
if ( !e.IsNull() ) {
nbInserted += SMESH_Block::Insert( e, edgeIdVec[ i ], shapeMap);
}
}
// Insert corner vertices
TParam2ColumnIt col1, col2 ;
vector< int > vertIdVec;
// from V0 column
SMESH_Block::GetEdgeVertexIDs( edgeIdVec[ V0_EDGE ], vertIdVec);
GetColumns(0, col1, col2 );
const SMDS_MeshNode* node0 = col1->second.front();
const SMDS_MeshNode* node1 = col1->second.back();
TopoDS_Shape v0 = myHelper->GetSubShapeByNode( node0, myHelper->GetMeshDS());
TopoDS_Shape v1 = myHelper->GetSubShapeByNode( node1, myHelper->GetMeshDS());
if ( v0.ShapeType() == TopAbs_VERTEX ) {
nbInserted += SMESH_Block::Insert( v0, vertIdVec[ 0 ], shapeMap);
}
if ( v1.ShapeType() == TopAbs_VERTEX ) {
nbInserted += SMESH_Block::Insert( v1, vertIdVec[ 1 ], shapeMap);
}
// from V1 column
SMESH_Block::GetEdgeVertexIDs( edgeIdVec[ V1_EDGE ], vertIdVec);
GetColumns(1, col1, col2 );
node0 = col2->second.front();
node1 = col2->second.back();
v0 = myHelper->GetSubShapeByNode( node0, myHelper->GetMeshDS());
v1 = myHelper->GetSubShapeByNode( node1, myHelper->GetMeshDS());
if ( v0.ShapeType() == TopAbs_VERTEX ) {
nbInserted += SMESH_Block::Insert( v0, vertIdVec[ 0 ], shapeMap);
}
if ( v1.ShapeType() == TopAbs_VERTEX ) {
nbInserted += SMESH_Block::Insert( v1, vertIdVec[ 1 ], shapeMap);
}
// TopoDS_Vertex V0, V1, Vcom;
// TopExp::Vertices( myBaseEdge, V0, V1, true );
// if ( !myIsForward ) std::swap( V0, V1 );
// // bottom vertex IDs
// SMESH_Block::GetEdgeVertexIDs( edgeIdVec[ _u0 ], vertIdVec);
// SMESH_Block::Insert( V0, vertIdVec[ 0 ], shapeMap);
// SMESH_Block::Insert( V1, vertIdVec[ 1 ], shapeMap);
// TopoDS_Edge sideEdge = GetEdge( V0_EDGE );
// if ( sideEdge.IsNull() || !TopExp::CommonVertex( botEdge, sideEdge, Vcom ))
// return false;
// // insert one side edge
// int edgeID;
// if ( Vcom.IsSame( V0 )) edgeID = edgeIdVec[ _v0 ];
// else edgeID = edgeIdVec[ _v1 ];
// SMESH_Block::Insert( sideEdge, edgeID, shapeMap);
// // top vertex of the side edge
// SMESH_Block::GetEdgeVertexIDs( edgeID, vertIdVec);
// TopoDS_Vertex Vtop = TopExp::FirstVertex( sideEdge );
// if ( Vcom.IsSame( Vtop ))
// Vtop = TopExp::LastVertex( sideEdge );
// SMESH_Block::Insert( Vtop, vertIdVec[ 1 ], shapeMap);
// // other side edge
// sideEdge = GetEdge( V1_EDGE );
// if ( sideEdge.IsNull() )
// return false;
// if ( edgeID = edgeIdVec[ _v1 ]) edgeID = edgeIdVec[ _v0 ];
// else edgeID = edgeIdVec[ _v1 ];
// SMESH_Block::Insert( sideEdge, edgeID, shapeMap);
// // top edge
// TopoDS_Edge topEdge = GetEdge( TOP_EDGE );
// SMESH_Block::Insert( topEdge, edgeIdVec[ _u1 ], shapeMap);
// // top vertex of the other side edge
// if ( !TopExp::CommonVertex( topEdge, sideEdge, Vcom ))
// return false;
// SMESH_Block::GetEdgeVertexIDs( edgeID, vertIdVec );
// SMESH_Block::Insert( Vcom, vertIdVec[ 1 ], shapeMap);
return nbInserted;
}
//================================================================================
/*!
* \brief Dump ids of nodes of sides
*/
//================================================================================
void StdMeshers_PrismAsBlock::TSideFace::dumpNodes(int nbNodes) const
{
#ifdef _DEBUG_
cout << endl << "NODES OF FACE "; SMESH_Block::DumpShapeID( myID, cout ) << endl;
THorizontalEdgeAdaptor* hSize0 = (THorizontalEdgeAdaptor*) HorizCurve(0);
cout << "Horiz side 0: "; hSize0->dumpNodes(nbNodes); cout << endl;
THorizontalEdgeAdaptor* hSize1 = (THorizontalEdgeAdaptor*) HorizCurve(1);
cout << "Horiz side 1: "; hSize1->dumpNodes(nbNodes); cout << endl;
TVerticalEdgeAdaptor* vSide0 = (TVerticalEdgeAdaptor*) VertiCurve(0);
cout << "Verti side 0: "; vSide0->dumpNodes(nbNodes); cout << endl;
TVerticalEdgeAdaptor* vSide1 = (TVerticalEdgeAdaptor*) VertiCurve(1);
cout << "Verti side 1: "; vSide1->dumpNodes(nbNodes); cout << endl;
delete hSize0; delete hSize1; delete vSide0; delete vSide1;
#endif
}
//================================================================================
/*!
* \brief Creates TVerticalEdgeAdaptor
* \param columnsMap - node column map
* \param parameter - normalized parameter
*/
//================================================================================
StdMeshers_PrismAsBlock::TVerticalEdgeAdaptor::
TVerticalEdgeAdaptor( const TParam2ColumnMap* columnsMap, const double parameter)
{
myNodeColumn = & getColumn( columnsMap, parameter )->second;
}
//================================================================================
/*!
* \brief Return coordinates for the given normalized parameter
* \param U - normalized parameter
* \retval gp_Pnt - coordinates
*/
//================================================================================
gp_Pnt StdMeshers_PrismAsBlock::TVerticalEdgeAdaptor::Value(const Standard_Real U) const
{
const SMDS_MeshNode* n1;
const SMDS_MeshNode* n2;
double r = getRAndNodes( myNodeColumn, U, n1, n2 );
return gpXYZ(n1) * ( 1 - r ) + gpXYZ(n2) * r;
}
//================================================================================
/*!
* \brief Dump ids of nodes
*/
//================================================================================
void StdMeshers_PrismAsBlock::TVerticalEdgeAdaptor::dumpNodes(int nbNodes) const
{
#ifdef _DEBUG_
for ( int i = 0; i < nbNodes && i < myNodeColumn->size(); ++i )
cout << (*myNodeColumn)[i]->GetID() << " ";
if ( nbNodes < myNodeColumn->size() )
cout << myNodeColumn->back()->GetID();
#endif
}
//================================================================================
/*!
* \brief Return coordinates for the given normalized parameter
* \param U - normalized parameter
* \retval gp_Pnt - coordinates
*/
//================================================================================
gp_Pnt StdMeshers_PrismAsBlock::THorizontalEdgeAdaptor::Value(const Standard_Real U) const
{
return mySide->TSideFace::Value( U, myV );
}
//================================================================================
/*!
* \brief Dump ids of <nbNodes> first nodes and the last one
*/
//================================================================================
void StdMeshers_PrismAsBlock::THorizontalEdgeAdaptor::dumpNodes(int nbNodes) const
{
#ifdef _DEBUG_
// Not bedugged code. Last node is sometimes incorrect
const TSideFace* side = mySide;
double u = 0;
if ( mySide->IsComplex() )
side = mySide->GetComponent(0,u);
TParam2ColumnIt col, col2;
TParam2ColumnMap* u2cols = side->GetColumns();
side->GetColumns( u , col, col2 );
int j, i = myV ? mySide->ColumnHeight()-1 : 0;
const SMDS_MeshNode* n = 0;
const SMDS_MeshNode* lastN
= side->IsForward() ? u2cols->rbegin()->second[ i ] : u2cols->begin()->second[ i ];
for ( j = 0; j < nbNodes && n != lastN; ++j )
{
n = col->second[ i ];
cout << n->GetID() << " ";
if ( side->IsForward() )
++col;
else
--col;
}
// last node
u = 1;
if ( mySide->IsComplex() )
side = mySide->GetComponent(1,u);
side->GetColumns( u , col, col2 );
if ( n != col->second[ i ] )
cout << col->second[ i ]->GetID();
#endif
}
//================================================================================
/*!
* \brief Return UV on pcurve for the given normalized parameter
* \param U - normalized parameter
* \retval gp_Pnt - coordinates
*/
//================================================================================
gp_Pnt2d StdMeshers_PrismAsBlock::TPCurveOnHorFaceAdaptor::Value(const Standard_Real U) const
{
TParam2ColumnIt u_col1, u_col2;
double r = mySide->GetColumns( U, u_col1, u_col2 );
gp_XY uv1 = mySide->GetNodeUV( myFace, u_col1->second[ myZ ]);
gp_XY uv2 = mySide->GetNodeUV( myFace, u_col2->second[ myZ ]);
return uv1 * ( 1 - r ) + uv2 * r;
}
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