// Module : SMESH
// $Header$
-using namespace std;
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 <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"
// _compatibleHypothesis.push_back("hypothese_bidon");
_type = ALGO;
gen->_mapAlgo[hypId] = this;
+
+ _onlyUnaryInput = _requireDescretBoundary = true;
}
//=============================================================================
return _compatibleHypothesis;
}
-//=============================================================================
-/*!
- *
- */
-//=============================================================================
-
-ostream & SMESH_Algo::SaveTo(ostream & save)
-{
- return save << this;
-}
-
-//=============================================================================
-/*!
- *
- */
-//=============================================================================
-
-istream & SMESH_Algo::LoadFrom(istream & load)
-{
- return load >> (*this);
-}
-
-//=============================================================================
-/*!
- *
- */
-//=============================================================================
-
-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)
-{
- MESSAGE("SMESH_Algo::CheckHypothesis");
- ASSERT(0); // use method from derived classes
- return false;
-}
-
-//=============================================================================
-/*!
- *
- */
-//=============================================================================
-
-bool SMESH_Algo::Compute(SMESH_Mesh & aMesh, const TopoDS_Shape & aShape)
-{
- MESSAGE("SMESH_Algo::Compute");
- ASSERT(0); // use method from derived classes
- return false;
-}
-
//=============================================================================
/*!
* List the hypothesis used by the algorithm associated to the shape.
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
- return _usedHypList;
+ _usedHypList.clear();
+ 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<const SMESHDS_Hypothesis *> & SMESH_Algo::GetAppliedHypothesis(
SMESH_Mesh & aMesh, const TopoDS_Shape & aShape)
{
- const SMESHDS_Mesh * meshDS = aMesh.GetMeshDS();
- const list<const SMESHDS_Hypothesis*> & listHyp = meshDS->GetHypothesis(aShape);
- list<const SMESHDS_Hypothesis*>::const_iterator it=listHyp.begin();
-
- int hypType;
- string hypName;
-
- _appliedHypList.clear();
- while (it!=listHyp.end())
- {
- const SMESHDS_Hypothesis *anHyp = *it;
- 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++;
- }
- return _appliedHypList;
+ _appliedHypList.clear();
+ 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;
}
//=============================================================================
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.;
+}
