-using namespace std;
-//=============================================================================
-// File : SMESH_Algo.cxx
-// Created : sam mai 18 09:20:53 CEST 2002
-// Author : Paul RASCLE, EDF
-// Project : SALOME
-// Copyright : EDF 2002
-// $Header$
-//=============================================================================
-using namespace std;
+// SMESH SMESH : implementaion of SMESH idl descriptions
+//
+// Copyright (C) 2003 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
+// CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation; either
+// version 2.1 of the License.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+//
+// See http://www.opencascade.org/SALOME/ or email : webmaster.salome@opencascade.org
+//
+//
+//
+// File : SMESH_Algo.cxx
+// Author : Paul RASCLE, EDF
+// Module : SMESH
+// $Header$
+using namespace std;
#include "SMESH_Algo.hxx"
#include "SMESH_Gen.hxx"
#include "SMESH_Mesh.hxx"
+#include "SMESH_HypoFilter.hxx"
+#include "SMDS_FacePosition.hxx"
+#include "SMDS_MeshElement.hxx"
+#include "SMDS_MeshNode.hxx"
+#include "SMESHDS_Mesh.hxx"
+#include "SMESHDS_SubMesh.hxx"
-#include "SMESHDS_ListOfPtrHypothesis.hxx"
-#include "SMESHDS_ListIteratorOfListOfPtrHypothesis.hxx"
-
-#include <GeomAdaptor_Curve.hxx>
#include <BRep_Tool.hxx>
#include <GCPnts_AbscissaPoint.hxx>
+#include <GeomAdaptor_Curve.hxx>
+#include <Geom_Surface.hxx>
+#include <TopLoc_Location.hxx>
+#include <TopTools_ListIteratorOfListOfShape.hxx>
+#include <TopTools_ListOfShape.hxx>
+#include <TopoDS.hxx>
+#include <TopoDS_Face.hxx>
+#include <gp_Pnt.hxx>
+#include <gp_Pnt2d.hxx>
+#include <gp_Vec.hxx>
#include "utilities.h"
*/
//=============================================================================
-SMESH_Algo::SMESH_Algo(int hypId, int studyId, SMESH_Gen* gen)
- : SMESH_Hypothesis(hypId, studyId, gen)
+SMESH_Algo::SMESH_Algo(int hypId, int studyId,
+ SMESH_Gen * gen):SMESH_Hypothesis(hypId, studyId, gen)
{
// _compatibleHypothesis.push_back("hypothese_bidon");
- _type = ALGO;
- gen->_mapAlgo[hypId] = this;
-}
-
-//=============================================================================
-/*!
- *
- */
-//=============================================================================
-
-SMESH_Algo::~SMESH_Algo()
-{
-}
-
-//=============================================================================
-/*!
- *
- */
-//=============================================================================
-
-const vector<string> & SMESH_Algo::GetCompatibleHypothesis()
-{
- return _compatibleHypothesis;
-}
-
-//=============================================================================
-/*!
- *
- */
-//=============================================================================
-
-ostream & SMESH_Algo::SaveTo(ostream & save)
-{
- return save << this;
-}
+ _type = ALGO;
+ gen->_mapAlgo[hypId] = this;
-//=============================================================================
-/*!
- *
- */
-//=============================================================================
-
-istream & SMESH_Algo::LoadFrom(istream & load)
-{
- return load >> (*this);
+ _onlyUnaryInput = _requireDescretBoundary = true;
}
//=============================================================================
*/
//=============================================================================
-ostream& operator << (ostream & save, SMESH_Algo & hyp)
-{
- return save;
-}
-
-//=============================================================================
-/*!
- *
- */
-//=============================================================================
-
-istream& operator >> (istream & load, SMESH_Algo & hyp)
-{
- return load;
-}
-
-//=============================================================================
-/*!
- *
- */
-//=============================================================================
-
-bool SMESH_Algo::CheckHypothesis(SMESH_Mesh& aMesh,
- const TopoDS_Shape& aShape)
+SMESH_Algo::~SMESH_Algo()
{
- MESSAGE("SMESH_Algo::CheckHypothesis");
- ASSERT(0); // use method from derived classes
- return false;
}
//=============================================================================
*/
//=============================================================================
-bool SMESH_Algo::Compute(SMESH_Mesh& aMesh,
- const TopoDS_Shape& aShape)
+const vector < string > &SMESH_Algo::GetCompatibleHypothesis()
{
- MESSAGE("SMESH_Algo::Compute");
- ASSERT(0); // use method from derived classes
- return false;
+ return _compatibleHypothesis;
}
//=============================================================================
*/
//=============================================================================
-const list<SMESHDS_Hypothesis*>&
-SMESH_Algo::GetUsedHypothesis(SMESH_Mesh& aMesh,
- const TopoDS_Shape& aShape)
+const list <const SMESHDS_Hypothesis *> & SMESH_Algo::GetUsedHypothesis(
+ SMESH_Mesh & aMesh, const TopoDS_Shape & aShape)
{
_usedHypList.clear();
- _usedHypList = GetAppliedHypothesis(aMesh, aShape); // copy
- int nbHyp = _usedHypList.size();
- if (nbHyp == 0)
- {
- TopoDS_Shape mainShape = aMesh.GetMeshDS()->ShapeToMesh();
- if (!mainShape.IsSame(aShape))
- {
- _usedHypList = GetAppliedHypothesis(aMesh, mainShape); // copy
- nbHyp = _usedHypList.size();
- }
- }
- if (nbHyp > 1) _usedHypList.clear(); //only one compatible hypothesis allowed
+ if ( !_compatibleHypothesis.empty() )
+ {
+ SMESH_HypoFilter filter( SMESH_HypoFilter::HasName( _compatibleHypothesis[0] ));
+ for ( int i = 1; i < _compatibleHypothesis.size(); ++i )
+ filter.Or( filter.HasName( _compatibleHypothesis[ i ] ));
+
+ aMesh.GetHypotheses( aShape, filter, _usedHypList, true );
+ if ( _usedHypList.size() > 1 )
+ _usedHypList.clear(); //only one compatible hypothesis allowed
+ }
return _usedHypList;
}
*/
//=============================================================================
-const list<SMESHDS_Hypothesis*>&
-SMESH_Algo::GetAppliedHypothesis(SMESH_Mesh& aMesh,
- const TopoDS_Shape& aShape)
+const list<const SMESHDS_Hypothesis *> & SMESH_Algo::GetAppliedHypothesis(
+ SMESH_Mesh & aMesh, const TopoDS_Shape & aShape)
{
- const Handle(SMESHDS_Mesh)& meshDS = aMesh.GetMeshDS();
- const SMESHDS_ListOfPtrHypothesis& listHyp = meshDS->GetHypothesis(aShape);
- SMESHDS_ListIteratorOfListOfPtrHypothesis it(listHyp);
-
- int hypType;
- string hypName;
-
_appliedHypList.clear();
- while (it.More())
- {
- SMESHDS_Hypothesis* anHyp = it.Value();
- hypType = anHyp->GetType();
- //SCRUTE(hypType);
- if (hypType == SMESHDS_Hypothesis::PARAM_ALGO)
- {
- hypName = anHyp->GetName();
- vector<string>::iterator ith = find(_compatibleHypothesis.begin(),
- _compatibleHypothesis.end(),
- hypName);
- if (ith != _compatibleHypothesis.end()) // count only relevant
- {
- _appliedHypList.push_back(anHyp);
- //SCRUTE(hypName);
- }
- }
- it.Next();
- }
+ if ( !_compatibleHypothesis.empty() )
+ {
+ SMESH_HypoFilter filter( SMESH_HypoFilter::HasName( _compatibleHypothesis[0] ));
+ for ( int i = 1; i < _compatibleHypothesis.size(); ++i )
+ filter.Or( filter.HasName( _compatibleHypothesis[ i ] ));
+
+ aMesh.GetHypotheses( aShape, filter, _appliedHypList, false );
+ }
return _appliedHypList;
}
-
//=============================================================================
/*!
* Compute length of an edge
*/
//=============================================================================
-double SMESH_Algo::EdgeLength(const TopoDS_Edge& E)
+double SMESH_Algo::EdgeLength(const TopoDS_Edge & E)
{
- double UMin = 0, UMax = 0;
- TopLoc_Location L;
- if (BRep_Tool::Degenerated(E)) return 0;
- Handle (Geom_Curve) C = BRep_Tool::Curve(E, L, UMin, UMax);
- GeomAdaptor_Curve AdaptCurve(C);
- GCPnts_AbscissaPoint gabs;
- double length = gabs.Length(AdaptCurve, UMin, UMax);
- return length;
+ double UMin = 0, UMax = 0;
+ TopLoc_Location L;
+ if (BRep_Tool::Degenerated(E))
+ return 0;
+ Handle(Geom_Curve) C = BRep_Tool::Curve(E, L, UMin, UMax);
+ GeomAdaptor_Curve AdaptCurve(C);
+ GCPnts_AbscissaPoint gabs;
+ double length = gabs.Length(AdaptCurve, UMin, UMax);
+ return length;
}
+//================================================================================
+/*!
+ * \brief Find out elements orientation on a geometrical face
+ * \param theFace - The face correctly oriented in the shape being meshed
+ * \param theMeshDS - The mesh data structure
+ * \retval bool - true if the face normal and the normal of first element
+ * in the correspoding submesh point in different directions
+ */
+//================================================================================
+
+bool SMESH_Algo::IsReversedSubMesh (const TopoDS_Face& theFace,
+ SMESHDS_Mesh* theMeshDS)
+{
+ if ( theFace.IsNull() || !theMeshDS )
+ return false;
+
+ // find out orientation of a meshed face
+ int faceID = theMeshDS->ShapeToIndex( theFace );
+ TopoDS_Shape aMeshedFace = theMeshDS->IndexToShape( faceID );
+ bool isReversed = ( theFace.Orientation() != aMeshedFace.Orientation() );
+
+ const SMESHDS_SubMesh * aSubMeshDSFace = theMeshDS->MeshElements( faceID );
+ if ( !aSubMeshDSFace )
+ return isReversed;
+
+ // find element with node located on face and get its normal
+ const SMDS_FacePosition* facePos = 0;
+ int vertexID = 0;
+ gp_Pnt nPnt[3];
+ gp_Vec Ne;
+ bool normalOK = false;
+ SMDS_ElemIteratorPtr iteratorElem = aSubMeshDSFace->GetElements();
+ while ( iteratorElem->more() ) // loop on elements on theFace
+ {
+ const SMDS_MeshElement* elem = iteratorElem->next();
+ if ( elem && elem->NbNodes() > 2 ) {
+ SMDS_ElemIteratorPtr nodesIt = elem->nodesIterator();
+ const SMDS_FacePosition* fPos = 0;
+ int i = 0, vID = 0;
+ while ( nodesIt->more() ) { // loop on nodes
+ const SMDS_MeshNode* node
+ = static_cast<const SMDS_MeshNode *>(nodesIt->next());
+ if ( i == 3 ) i = 2;
+ nPnt[ i++ ].SetCoord( node->X(), node->Y(), node->Z() );
+ // check position
+ const SMDS_PositionPtr& pos = node->GetPosition();
+ if ( !pos ) continue;
+ if ( pos->GetTypeOfPosition() == SMDS_TOP_FACE ) {
+ fPos = dynamic_cast< const SMDS_FacePosition* >( pos.get() );
+ }
+ else if ( pos->GetTypeOfPosition() == SMDS_TOP_VERTEX ) {
+ vID = pos->GetShapeId();
+ }
+ }
+ if ( fPos || ( !normalOK && vID )) {
+ // compute normal
+ gp_Vec v01( nPnt[0], nPnt[1] ), v02( nPnt[0], nPnt[2] );
+ if ( v01.SquareMagnitude() > RealSmall() &&
+ v02.SquareMagnitude() > RealSmall() )
+ {
+ Ne = v01 ^ v02;
+ normalOK = ( Ne.SquareMagnitude() > RealSmall() );
+ }
+ // we need position on theFace or at least on vertex
+ if ( normalOK ) {
+ vertexID = vID;
+ if ((facePos = fPos))
+ break;
+ }
+ }
+ }
+ }
+ if ( !normalOK )
+ return isReversed;
+
+ // node position on face
+ double u,v;
+ if ( facePos ) {
+ u = facePos->GetUParameter();
+ v = facePos->GetVParameter();
+ }
+ else if ( vertexID ) {
+ TopoDS_Shape V = theMeshDS->IndexToShape( vertexID );
+ if ( V.IsNull() || V.ShapeType() != TopAbs_VERTEX )
+ return isReversed;
+ gp_Pnt2d uv = BRep_Tool::Parameters( TopoDS::Vertex( V ), theFace );
+ u = uv.X();
+ v = uv.Y();
+ }
+ else
+ {
+ return isReversed;
+ }
+
+ // face normal at node position
+ TopLoc_Location loc;
+ Handle(Geom_Surface) surf = BRep_Tool::Surface( theFace, loc );
+ if ( surf.IsNull() || surf->Continuity() < GeomAbs_C1 ) return isReversed;
+ gp_Vec d1u, d1v;
+ surf->D1( u, v, nPnt[0], d1u, d1v );
+ gp_Vec Nf = (d1u ^ d1v).Transformed( loc );
+
+ if ( theFace.Orientation() == TopAbs_REVERSED )
+ Nf.Reverse();
+
+ return Ne * Nf < 0.;
+}
