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0020672: EDF 1243 SMESH : Be able to transform mixed mesh
+ void SplitVolumesIntoTetra(in SMESH_IDSource elems, in short methodFlags)
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@ -223,8 +223,8 @@ module SMESH
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* 1 - split the hexahedron into 5 tetrahedrons
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* 2 - split the hexahedron into 6 tetrahedrons
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*/
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//void SplitVolumesIntoTetra(in SMESH_IDSource elems, in short methodFlags)
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//raises (SALOME::SALOME_Exception);
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void SplitVolumesIntoTetra(in SMESH_IDSource elems, in short methodFlags)
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raises (SALOME::SALOME_Exception);
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enum Smooth_Method { LAPLACIAN_SMOOTH, CENTROIDAL_SMOOTH };
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@ -1161,159 +1161,448 @@ namespace
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{
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// Methods of splitting volumes into tetra
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const int theHexTo5[5*4] =
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const int theHexTo5_1[5*4+1] =
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{
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0, 1, 5, 2,
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0, 4, 5, 7,
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0, 3, 7, 2,
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5, 6, 7, 2,
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0, 2, 5, 7
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0, 1, 2, 5, 0, 4, 5, 7, 0, 2, 3, 7, 2, 5, 6, 7, 0, 5, 2, 7, -1
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};
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const int theHexTo6[6*4] =
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const int theHexTo5_2[5*4+1] =
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{
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0, 1, 5, 2,
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0, 4, 5, 7,
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0, 3, 7, 2,
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5, 6, 7, 2,
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0, 2, 5, 7
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};
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const int thePyraTo2[2*4] =
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{
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0, 1, 2, 4,
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0, 2, 3, 4
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1, 2, 3, 6, 1, 4, 5, 6, 0, 1, 3, 4, 3, 4, 6, 7, 1, 3, 4, 6, -1
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};
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const int* theHexTo5[2] = { theHexTo5_1, theHexTo5_2 };
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const int thePentaTo8[8*4] =
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const int theHexTo6_1[6*4+1] =
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{
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0, 1, 2, 6,
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3, 5, 4, 6,
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0, 3, 4, 6,
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0, 4, 1, 6,
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1, 4, 5, 6,
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1, 5, 2, 6,
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2, 5, 3, 6,
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2, 3, 0, 6
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1, 5, 6, 0, 0, 1, 2, 6, 0, 4, 5, 6, 0, 4, 6, 7, 0, 2, 3, 6, 0, 3, 7, 6, -1
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};
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const int theHexTo6_2[6*4+1] =
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{
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2, 6, 7, 1, 1, 2, 3, 7, 1, 5, 6, 7, 1, 5, 7, 4, 1, 3, 0, 7, 1, 0, 4, 7, -1
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};
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const int theHexTo6_3[6*4+1] =
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{
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3, 7, 4, 2, 2, 3, 0, 4, 2, 6, 7, 4, 2, 6, 4, 5, 2, 0, 1, 4, 2, 1, 5, 4, -1
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};
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const int theHexTo6_4[6*4+1] =
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{
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0, 4, 5, 3, 3, 0, 1, 5, 3, 7, 4, 5, 3, 7, 5, 6, 3, 1, 2, 5, 3, 2, 6, 5, -1
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};
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const int* theHexTo6[4] = { theHexTo6_1, theHexTo6_2, theHexTo6_3, theHexTo6_4 };
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const int thePyraTo2_1[2*4+1] =
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{
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0, 1, 2, 4, 0, 2, 3, 4, -1
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};
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const int thePyraTo2_2[2*4+1] =
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{
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1, 2, 3, 4, 1, 3, 0, 4, -1
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};
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const int* thePyraTo2[2] = { thePyraTo2_1, thePyraTo2_2 };
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const int thePentaTo3_1[3*4+1] =
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{
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0, 1, 2, 3, 1, 3, 4, 2, 2, 3, 4, 5, -1
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};
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const int thePentaTo3_2[3*4+1] =
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{
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1, 2, 0, 4, 2, 4, 5, 0, 0, 4, 5, 3, -1
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};
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const int thePentaTo3_3[3*4+1] =
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{
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2, 0, 1, 5, 0, 5, 3, 1, 1, 5, 3, 4, -1
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};
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const int thePentaTo3_4[3*4+1] =
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{
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0, 1, 2, 3, 1, 3, 4, 5, 2, 3, 1, 5, -1
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};
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const int thePentaTo3_5[3*4+1] =
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{
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1, 2, 0, 4, 2, 4, 5, 3, 0, 4, 2, 3, -1
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};
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const int thePentaTo3_6[3*4+1] =
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{
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2, 0, 1, 5, 0, 5, 3, 4, 1, 5, 0, 4, -1
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};
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const int* thePentaTo3[6] = { thePentaTo3_1, thePentaTo3_2, thePentaTo3_3,
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thePentaTo3_4, thePentaTo3_5, thePentaTo3_6 };
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struct TTriangleFacet //!< stores indices of three nodes of tetra facet
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{
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int _n1, _n2, _n3;
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TTriangleFacet(int n1, int n2, int n3): _n1(n1), _n2(n2), _n3(n3) {}
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bool contains(int n) const { return ( n == _n1 || n == _n2 || n == _n3 ); }
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bool hasAdjacentTetra( const SMDS_MeshElement* elem ) const;
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};
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struct TSplitMethod
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{
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int _nbTetra;
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const int* _connectivity;
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bool _addNode; // additional node is to be created
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const int* _connectivity; //!< foursomes of tetra connectivy finished by -1
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bool _baryNode; //!< additional node is to be created at cell barycenter
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bool _ownConn; //!< to delete _connectivity in destructor
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TSplitMethod( int nbTet=0, const int* conn=0, bool addNode=false)
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: _nbTetra(nbTet), _connectivity(conn), _addNode(addNode) {}
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: _nbTetra(nbTet), _connectivity(conn), _baryNode(addNode), _ownConn(false) {}
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~TSplitMethod() { if ( _ownConn ) delete [] _connectivity; _connectivity = 0; }
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bool hasFacet( const TTriangleFacet& facet ) const
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{
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const int* tetConn = _connectivity;
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for ( ; tetConn[0] >= 0; tetConn += 4 )
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if (( facet.contains( tetConn[0] ) +
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facet.contains( tetConn[1] ) +
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facet.contains( tetConn[2] ) +
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facet.contains( tetConn[3] )) == 3 )
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return true;
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return false;
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}
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};
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//=======================================================================
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/*!
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* \brief return TSplitMethod for the given element
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*/
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TSplitMethod getSplitMethod( const SMDS_MeshElement* vol, const int theMethodFlags)
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//=======================================================================
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TSplitMethod getSplitMethod( SMDS_VolumeTool& vol, const int theMethodFlags)
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{
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TSplitMethod method;
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if ( vol->GetType() == SMDSAbs_Volume && !vol->IsPoly())
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switch ( vol->NbNodes() )
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int iQ = vol.Element()->IsQuadratic() ? 2 : 1;
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// Find out how adjacent volumes are split
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vector < list< TTriangleFacet > > triaSplitsByFace( vol.NbFaces() ); // splits of each side
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int hasAdjacentSplits = 0, maxTetConnSize = 0;
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for ( int iF = 0; iF < vol.NbFaces(); ++iF )
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{
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int nbNodes = vol.NbFaceNodes( iF ) / iQ;
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maxTetConnSize += 4 * ( nbNodes - 2 );
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if ( nbNodes < 4 ) continue;
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list< TTriangleFacet >& triaSplits = triaSplitsByFace[ iF ];
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const int* nInd = vol.GetFaceNodesIndices( iF );
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if ( nbNodes == 4 )
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{
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case 8:
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case 20:
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if ( theMethodFlags & SMESH_MeshEditor::HEXA_TO_5 )
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method = TSplitMethod( 5, theHexTo5 );
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else
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method = TSplitMethod( 6, theHexTo6 );
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break;
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case 5:
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case 13:
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method = TSplitMethod( 2, thePyraTo2 );
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break;
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case 6:
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case 15:
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method = TSplitMethod( 8, thePentaTo8, /*addNode=*/true );
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break;
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default:;
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TTriangleFacet t012( nInd[0*iQ], nInd[1*iQ], nInd[2*iQ] );
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TTriangleFacet t123( nInd[1*iQ], nInd[2*iQ], nInd[3*iQ] );
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if ( t012.hasAdjacentTetra( vol.Element() )) triaSplits.push_back( t012 );
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else if ( t123.hasAdjacentTetra( vol.Element() )) triaSplits.push_back( t123 );
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}
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else
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{
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int iCom = 0; // common node of triangle faces to split into
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for ( int iVar = 0; iVar < nbNodes; ++iVar, ++iCom )
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{
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TTriangleFacet t012( nInd[ iQ * ( iCom )],
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nInd[ iQ * ( (iCom+1)%nbNodes )],
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nInd[ iQ * ( (iCom+2)%nbNodes )]);
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TTriangleFacet t023( nInd[ iQ * ( iCom )],
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nInd[ iQ * ( (iCom+2)%nbNodes )],
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nInd[ iQ * ( (iCom+3)%nbNodes )]);
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if ( t012.hasAdjacentTetra( vol.Element() ) && t023.hasAdjacentTetra( vol.Element() ))
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{
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triaSplits.push_back( t012 );
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triaSplits.push_back( t023 );
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break;
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}
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}
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}
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if ( !triaSplits.empty() )
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hasAdjacentSplits = true;
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}
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// Among variants of split method select one compliant with adjacent volumes
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TSplitMethod method;
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if ( !vol.Element()->IsPoly() )
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{
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int nbVariants = 2, nbTet = 0;
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const int** connVariants = 0;
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switch ( vol.Element()->GetEntityType() )
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{
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case SMDSEntity_Hexa:
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case SMDSEntity_Quad_Hexa:
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if ( theMethodFlags & SMESH_MeshEditor::HEXA_TO_5 )
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connVariants = theHexTo5, nbTet = 5;
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else
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connVariants = theHexTo6, nbTet = 6, nbVariants = 4;
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break;
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case SMDSEntity_Pyramid:
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case SMDSEntity_Quad_Pyramid:
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connVariants = thePyraTo2; nbTet = 2;
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break;
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case SMDSEntity_Penta:
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case SMDSEntity_Quad_Penta:
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connVariants = thePentaTo3; nbTet = 3; nbVariants = 6;
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break;
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default:
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nbVariants = 0;
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}
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for ( int variant = 0; variant < nbVariants && method._nbTetra == 0; ++variant )
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{
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// check method compliancy with adjacent tetras,
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// all found splits must be among facets of tetras described by this method
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method = TSplitMethod( nbTet, connVariants[variant] );
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if ( hasAdjacentSplits && method._nbTetra > 0 )
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{
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bool facetCreated = true;
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for ( int iF = 0; facetCreated && iF < triaSplitsByFace.size(); ++iF )
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{
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list< TTriangleFacet >::const_iterator facet = triaSplitsByFace[iF].begin();
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for ( ; facetCreated && facet != triaSplitsByFace[iF].end(); ++facet )
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facetCreated = method.hasFacet( *facet );
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}
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if ( !facetCreated )
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method = TSplitMethod(0); // incompatible method
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}
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}
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}
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if ( method._nbTetra < 1 )
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{
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// No standard method is applicable, use a generic solution:
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// each facet of a volume is split into triangles and
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// each of triangles and a volume barycenter form a tetrahedron.
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int* connectivity = new int[ maxTetConnSize + 1 ];
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method._connectivity = connectivity;
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method._ownConn = true;
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method._baryNode = true;
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int connSize = 0;
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int baryCenInd = vol.NbNodes();
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for ( int iF = 0; iF < vol.NbFaces(); ++iF )
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{
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const int nbNodes = vol.NbFaceNodes( iF ) / iQ;
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const int* nInd = vol.GetFaceNodesIndices( iF );
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// find common node of triangle facets of tetra to create
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int iCommon = 0; // index in linear numeration
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const list< TTriangleFacet >& triaSplits = triaSplitsByFace[ iF ];
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if ( !triaSplits.empty() )
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{
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// by found facets
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const TTriangleFacet* facet = &triaSplits.front();
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for ( ; iCommon < nbNodes-1 ; ++iCommon )
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if ( facet->contains( nInd[ iQ * iCommon ]) &&
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facet->contains( nInd[ iQ * ((iCommon+2)%nbNodes) ]))
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break;
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}
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else if ( nbNodes > 3 )
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{
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// find the best method of splitting into triangles by aspect ratio
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SMESH::Controls::NumericalFunctorPtr aspectRatio( new SMESH::Controls::AspectRatio);
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map< double, int > badness2iCommon;
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const SMDS_MeshNode** nodes = vol.GetFaceNodes( iF );
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int nbVariants = ( nbNodes == 4 ? 2 : nbNodes );
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for ( int iVar = 0; iVar < nbVariants; ++iVar, ++iCommon )
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for ( int iLast = iCommon+2; iLast < iCommon+nbNodes; ++iLast )
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{
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SMDS_FaceOfNodes tria ( nodes[ iQ*( iCommon )],
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nodes[ iQ*((iLast-1)%nbNodes)],
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nodes[ iQ*((iLast )%nbNodes)]);
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double badness = getBadRate( &tria, aspectRatio );
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badness2iCommon.insert( make_pair( badness, iCommon ));
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}
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// use iCommon with lowest badness
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iCommon = badness2iCommon.begin()->second;
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}
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if ( iCommon >= nbNodes )
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iCommon = 0; // something wrong
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// fill connectivity of tetra
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int nbTet = nbNodes - 2;
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for ( int i = 0; i < nbTet; ++i )
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{
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int i1 = (iCommon+1+i) % nbNodes, i2 = (iCommon+2+i) % nbNodes;
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if ( !vol.IsFaceExternal( iF )) swap( i1, i2 );
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connectivity[ connSize++ ] = nInd[ iQ * iCommon ];
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connectivity[ connSize++ ] = nInd[ iQ * i1 ];
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connectivity[ connSize++ ] = nInd[ iQ * i2 ];
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connectivity[ connSize++ ] = baryCenInd;
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++method._nbTetra;
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}
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}
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connectivity[ connSize++ ] = -1;
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}
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return method;
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}
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}
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//================================================================================
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/*!
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* \brief Check if there is a tetraherdon adjacent to the given element via this facet
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*/
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//================================================================================
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bool TTriangleFacet::hasAdjacentTetra( const SMDS_MeshElement* elem ) const
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{
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// find the tetrahedron including the three nodes of facet
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const SMDS_MeshNode* n1 = elem->GetNode(_n1);
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const SMDS_MeshNode* n2 = elem->GetNode(_n2);
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const SMDS_MeshNode* n3 = elem->GetNode(_n3);
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SMDS_ElemIteratorPtr volIt1 = n1->GetInverseElementIterator(SMDSAbs_Volume);
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while ( volIt1->more() )
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{
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const SMDS_MeshElement* v = volIt1->next();
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if ( v->GetEntityType() != ( v->IsQuadratic() ? SMDSEntity_Quad_Tetra : SMDSEntity_Tetra ))
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continue;
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SMDS_ElemIteratorPtr volIt2 = n2->GetInverseElementIterator(SMDSAbs_Volume);
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while ( volIt2->more() )
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if ( v != volIt2->next() )
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continue;
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SMDS_ElemIteratorPtr volIt3 = n3->GetInverseElementIterator(SMDSAbs_Volume);
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while ( volIt3->more() )
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if ( v == volIt3->next() )
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return true;
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}
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return false;
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}
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} // namespace
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//=======================================================================
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//function : SplitVolumesIntoTetra
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//purpose : Split volumic elements into tetrahedra.
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//=======================================================================
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// void SMESH_MeshEditor::SplitVolumesIntoTetra (const TIDSortedElemSet & theElems,
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// const int theMethodFlags)
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// {
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// // sdt-like iterator on coordinates of nodes of mesh element
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// typedef SMDS_StdIterator< TNodeXYZ, SMDS_ElemIteratorPtr > NXyzIterator;
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// NXyzIterator xyzEnd;
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void SMESH_MeshEditor::SplitVolumesIntoTetra (const TIDSortedElemSet & theElems,
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const int theMethodFlags)
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{
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// std-like iterator on coordinates of nodes of mesh element
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typedef SMDS_StdIterator< TNodeXYZ, SMDS_ElemIteratorPtr > NXyzIterator;
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NXyzIterator xyzEnd;
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// SMESH_MesherHelper helper( *GetMesh());
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SMDS_VolumeTool volTool;
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SMESH_MesherHelper helper( *GetMesh());
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// TIDSortedElemSet::const_iterator elem = theElems.begin();
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// for ( ; elem != theElems.end(); ++elem )
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// {
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// SMDSAbs_EntityType geomType = (*elem)->GetEntityType();
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// if ( geomType <= SMDSEntity_Quad_Tetra )
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// continue; // tetra or face or edge
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SMESHDS_SubMesh* subMesh = GetMeshDS()->MeshElements(1);
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SMESHDS_SubMesh* fSubMesh = subMesh;
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SMESH_SequenceOfElemPtr newNodes, newElems;
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// if ( (*elem)->IsQuadratic() )
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// {
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// // add quadratic links to the helper
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// SMDS_VolumeTool vol( *elem );
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// for ( int iF = 0; iF < vol.NbFaces(); ++iF )
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// {
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// const SMDS_MeshNode** fNodes = vol.GetFaceNodes( iF );
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// for ( int iN = 0; iN < vol.NbFaceNodes( iF ); iN += 2)
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// helper.AddTLinkNode( fNodes[iF], fNodes[iF+2], fNodes[iF+1] );
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// }
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// helper.SetIsQuadratic( true );
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// }
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// else
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// {
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// helper.SetIsQuadratic( false );
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// }
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TIDSortedElemSet::const_iterator elem = theElems.begin();
|
||||
for ( ; elem != theElems.end(); ++elem )
|
||||
{
|
||||
SMDSAbs_EntityType geomType = (*elem)->GetEntityType();
|
||||
if ( geomType <= SMDSEntity_Quad_Tetra )
|
||||
continue; // tetra or face or ...
|
||||
|
||||
// vector<const SMDS_MeshElement* > tetras; // splits of a volume
|
||||
if ( !volTool.Set( *elem )) continue; // not volume? strange...
|
||||
|
||||
// if ( geomType == SMDSEntity_Polyhedra )
|
||||
// {
|
||||
// // Each face of a polyhedron is split into triangles and
|
||||
// // each of triangles and a cell barycenter form a tetrahedron.
|
||||
TSplitMethod splitMethod = getSplitMethod( volTool, theMethodFlags );
|
||||
if ( splitMethod._nbTetra < 1 ) continue;
|
||||
|
||||
// SMDS_VolumeTool vol( *elem );
|
||||
// find submesh to add new tetras in
|
||||
if ( !subMesh || !subMesh->Contains( *elem ))
|
||||
{
|
||||
int shapeID = FindShape( *elem );
|
||||
helper.SetSubShape( shapeID ); // helper will add tetras to the found submesh
|
||||
subMesh = GetMeshDS()->MeshElements( shapeID );
|
||||
}
|
||||
int iQ;
|
||||
if ( (*elem)->IsQuadratic() )
|
||||
{
|
||||
iQ = 2;
|
||||
// add quadratic links to the helper
|
||||
for ( int iF = 0; iF < volTool.NbFaces(); ++iF )
|
||||
{
|
||||
const SMDS_MeshNode** fNodes = volTool.GetFaceNodes( iF );
|
||||
for ( int iN = 0; iN < volTool.NbFaceNodes( iF ); iN += iQ )
|
||||
helper.AddTLinkNode( fNodes[iF], fNodes[iF+2], fNodes[iF+1] );
|
||||
}
|
||||
helper.SetIsQuadratic( true );
|
||||
}
|
||||
else
|
||||
{
|
||||
iQ = 1;
|
||||
helper.SetIsQuadratic( false );
|
||||
}
|
||||
vector<const SMDS_MeshNode*> nodes( (*elem)->begin_nodes(), (*elem)->end_nodes() );
|
||||
if ( splitMethod._baryNode )
|
||||
{
|
||||
// make a node at barycenter
|
||||
gp_XYZ gc( 0,0,0 );
|
||||
gc = accumulate( NXyzIterator((*elem)->nodesIterator()), xyzEnd, gc ) / nodes.size();
|
||||
SMDS_MeshNode* gcNode = helper.AddNode( gc.X(), gc.Y(), gc.Z() );
|
||||
nodes.push_back( gcNode );
|
||||
newNodes.Append( gcNode );
|
||||
}
|
||||
|
||||
// // make a node at barycenter
|
||||
// gp_XYZ gc = std::accumulate( NXyzIterator((*elem)->nodesIterator()), xyzEnd,gp_XYZ(0,0,0));
|
||||
// gc /= vol.NbNodes();
|
||||
// SMDS_MeshNode* gcNode = GetMeshDS()->AddNode( gc.X(), gc.Y(), gc.Z() );
|
||||
// make tetras
|
||||
helper.SetElementsOnShape( true );
|
||||
vector<const SMDS_MeshElement* > tetras( splitMethod._nbTetra ); // splits of a volume
|
||||
const int* tetConn = splitMethod._connectivity;
|
||||
for ( int i = 0; i < splitMethod._nbTetra; ++i, tetConn += 4 )
|
||||
newElems.Append( tetras[ i ] = helper.AddVolume( nodes[ tetConn[0] ],
|
||||
nodes[ tetConn[1] ],
|
||||
nodes[ tetConn[2] ],
|
||||
nodes[ tetConn[3] ]));
|
||||
|
||||
// for ( int iF = 0; iF < vol.NbFaces(); ++iF )
|
||||
// {
|
||||
// const SMDS_MeshNode** fNodes = vol.GetFaceNodes( iF );
|
||||
// int nbFNodes = vol.NbFaceNodes( iF );
|
||||
// int nbTria = nbFNodes - 2;
|
||||
// bool extFace = vol.IsFaceExternal( iF );
|
||||
// SMDS_MeshElement* tet;
|
||||
// for ( int i = 0; i < nbTria; ++i )
|
||||
// {
|
||||
// if ( extFace )
|
||||
// tet = helper.AddVolume( fNodes[0], fNodes[i+1], fNodes[i+2], gcNode );
|
||||
// else
|
||||
// tet = helper.AddVolume( fNodes[0], fNodes[i+2], fNodes[i+1], gcNode );
|
||||
// tetras.push_back( tet );
|
||||
// }
|
||||
// }
|
||||
ReplaceElemInGroups( *elem, tetras, GetMeshDS() );
|
||||
|
||||
// }
|
||||
// else
|
||||
// {
|
||||
// Split faces on sides of the split volume
|
||||
|
||||
// TSplitMethod splitMethod = getSplitMethod( *elem, theMethodFlags );
|
||||
// if ( splitMethod._nbTetra < 1 ) continue;
|
||||
const SMDS_MeshNode** volNodes = volTool.GetNodes();
|
||||
for ( int iF = 0; iF < volTool.NbFaces(); ++iF )
|
||||
{
|
||||
const int nbNodes = volTool.NbFaceNodes( iF ) / iQ;
|
||||
if ( nbNodes < 4 ) continue;
|
||||
|
||||
// vector<const SMDS_MeshNode*> volNodes( (*elem)->begin_nodes(), (*elem)->end_nodes());
|
||||
// }
|
||||
// }
|
||||
// }
|
||||
// find an existing face
|
||||
vector<const SMDS_MeshNode*> fNodes( volTool.GetFaceNodes( iF ),
|
||||
volTool.GetFaceNodes( iF ) + nbNodes*iQ );
|
||||
while ( const SMDS_MeshElement* face = GetMeshDS()->FindFace( fNodes ))
|
||||
{
|
||||
// among possible triangles create ones discribed by split method
|
||||
const int* nInd = volTool.GetFaceNodesIndices( iF );
|
||||
int nbVariants = ( nbNodes == 4 ? 2 : nbNodes );
|
||||
int iCom = 0; // common node of triangle faces to split into
|
||||
list< TTriangleFacet > facets;
|
||||
for ( int iVar = 0; iVar < nbVariants; ++iVar, ++iCom )
|
||||
{
|
||||
TTriangleFacet t012( nInd[ iQ * ( iCom )],
|
||||
nInd[ iQ * ( (iCom+1)%nbNodes )],
|
||||
nInd[ iQ * ( (iCom+2)%nbNodes )]);
|
||||
TTriangleFacet t023( nInd[ iQ * ( iCom )],
|
||||
nInd[ iQ * ( (iCom+2)%nbNodes )],
|
||||
nInd[ iQ * ( (iCom+3)%nbNodes )]);
|
||||
if ( splitMethod.hasFacet( t012 ) && splitMethod.hasFacet( t023 ))
|
||||
{
|
||||
facets.push_back( t012 );
|
||||
facets.push_back( t023 );
|
||||
for ( int iLast = iCom+4; iLast < iCom+nbNodes; ++iLast )
|
||||
facets.push_back( TTriangleFacet( nInd[ iQ * ( iCom )],
|
||||
nInd[ iQ * ((iLast-1)%nbNodes )],
|
||||
nInd[ iQ * ((iLast )%nbNodes )]));
|
||||
break;
|
||||
}
|
||||
}
|
||||
// find submesh to add new faces in
|
||||
if ( !fSubMesh || !fSubMesh->Contains( face ))
|
||||
{
|
||||
int shapeID = FindShape( face );
|
||||
fSubMesh = GetMeshDS()->MeshElements( shapeID );
|
||||
}
|
||||
// make triangles
|
||||
helper.SetElementsOnShape( false );
|
||||
vector< const SMDS_MeshElement* > triangles;
|
||||
list< TTriangleFacet >::iterator facet = facets.begin();
|
||||
for ( ; facet != facets.end(); ++facet )
|
||||
{
|
||||
if ( !volTool.IsFaceExternal( iF ))
|
||||
swap( facet->_n2, facet->_n3 );
|
||||
triangles.push_back( helper.AddFace( volNodes[ facet->_n1 ],
|
||||
volNodes[ facet->_n2 ],
|
||||
volNodes[ facet->_n3 ]));
|
||||
if ( triangles.back() && fSubMesh )
|
||||
fSubMesh->AddElement( triangles.back());
|
||||
newElems.Append( triangles.back() );
|
||||
}
|
||||
ReplaceElemInGroups( face, triangles, GetMeshDS() );
|
||||
GetMeshDS()->RemoveFreeElement( face, fSubMesh, /*fromGroups=*/false );
|
||||
}
|
||||
|
||||
} // loop on volume faces to split them into triangles
|
||||
|
||||
GetMeshDS()->RemoveFreeElement( *elem, subMesh, /*fromGroups=*/false );
|
||||
|
||||
} // loop on volumes to split
|
||||
|
||||
myLastCreatedNodes = newNodes;
|
||||
myLastCreatedElems = newElems;
|
||||
}
|
||||
|
||||
//=======================================================================
|
||||
//function : AddToSameGroups
|
||||
@ -1356,10 +1645,11 @@ void SMESH_MeshEditor::RemoveElemFromGroups (const SMDS_MeshElement* removeelem,
|
||||
}
|
||||
}
|
||||
|
||||
//=======================================================================
|
||||
//function : ReplaceElemInGroups
|
||||
//purpose : replace elemToRm by elemToAdd in the all groups
|
||||
//=======================================================================
|
||||
//================================================================================
|
||||
/*!
|
||||
* \brief Replace elemToRm by elemToAdd in the all groups
|
||||
*/
|
||||
//================================================================================
|
||||
|
||||
void SMESH_MeshEditor::ReplaceElemInGroups (const SMDS_MeshElement* elemToRm,
|
||||
const SMDS_MeshElement* elemToAdd,
|
||||
@ -1376,6 +1666,29 @@ void SMESH_MeshEditor::ReplaceElemInGroups (const SMDS_MeshElement* elemToRm,
|
||||
}
|
||||
}
|
||||
|
||||
//================================================================================
|
||||
/*!
|
||||
* \brief Replace elemToRm by elemToAdd in the all groups
|
||||
*/
|
||||
//================================================================================
|
||||
|
||||
void SMESH_MeshEditor::ReplaceElemInGroups (const SMDS_MeshElement* elemToRm,
|
||||
const vector<const SMDS_MeshElement*>& elemToAdd,
|
||||
SMESHDS_Mesh * aMesh)
|
||||
{
|
||||
const set<SMESHDS_GroupBase*>& groups = aMesh->GetGroups();
|
||||
if (!groups.empty())
|
||||
{
|
||||
set<SMESHDS_GroupBase*>::const_iterator grIt = groups.begin();
|
||||
for ( ; grIt != groups.end(); grIt++ ) {
|
||||
SMESHDS_Group* group = dynamic_cast<SMESHDS_Group*>( *grIt );
|
||||
if ( group && group->SMDSGroup().Remove( elemToRm ) )
|
||||
for ( int i = 0; i < elemToAdd.size(); ++i )
|
||||
group->SMDSGroup().Add( elemToAdd[ i ] );
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
//=======================================================================
|
||||
//function : QuadToTri
|
||||
//purpose : Cut quadrangles into triangles.
|
||||
|
||||
@ -240,7 +240,7 @@ public:
|
||||
/*!
|
||||
* \brief Split volumic elements into tetrahedra.
|
||||
*/
|
||||
//void SplitVolumesIntoTetra (const TIDSortedElemSet & theElems, const int theMethodFlags);
|
||||
void SplitVolumesIntoTetra (const TIDSortedElemSet & theElems, const int theMethodFlags);
|
||||
|
||||
|
||||
enum SmoothMethod { LAPLACIAN = 0, CENTROIDAL };
|
||||
@ -552,9 +552,9 @@ public:
|
||||
SMESHDS_Mesh * aMesh);
|
||||
// replace elemToRm by elemToAdd in the all groups
|
||||
|
||||
// static void ReplaceElemInGroups (const SMDS_MeshElement* elemToRm,
|
||||
// const std::vector<const SMDS_MeshElement*>& elemToAdd,
|
||||
// SMESHDS_Mesh * aMesh);
|
||||
static void ReplaceElemInGroups (const SMDS_MeshElement* elemToRm,
|
||||
const std::vector<const SMDS_MeshElement*>& elemToAdd,
|
||||
SMESHDS_Mesh * aMesh);
|
||||
// replace elemToRm by elemToAdd in the all groups
|
||||
|
||||
/*!
|
||||
|
||||
@ -1159,9 +1159,27 @@ CORBA::Long SMESH_MeshEditor_i::BestSplit (CORBA::Long IDOfQuad,
|
||||
return -1;
|
||||
}
|
||||
|
||||
//================================================================================
|
||||
/*!
|
||||
* \brief Split volumic elements into tetrahedrons
|
||||
*/
|
||||
//================================================================================
|
||||
|
||||
void SMESH_MeshEditor_i::SplitVolumesIntoTetra (SMESH::SMESH_IDSource_ptr elems,
|
||||
CORBA::Short methodFlags)
|
||||
CORBA::Short methodFlags)
|
||||
throw (SALOME::SALOME_Exception)
|
||||
{
|
||||
Unexpect aCatch(SALOME_SalomeException);
|
||||
|
||||
SMESH::long_array_var anElementsId = elems->GetIDs();
|
||||
TIDSortedElemSet elemSet;
|
||||
arrayToSet( anElementsId, GetMeshDS(), elemSet, SMDSAbs_Volume );
|
||||
|
||||
::SMESH_MeshEditor anEditor (myMesh);
|
||||
anEditor.SplitVolumesIntoTetra( elemSet, int( methodFlags ));
|
||||
|
||||
TPythonDump() << this << ".SplitVolumesIntoTetra( "
|
||||
<< elems << ", " << methodFlags << " )";
|
||||
}
|
||||
|
||||
//=======================================================================
|
||||
|
||||
@ -138,7 +138,7 @@ public:
|
||||
CORBA::Long BestSplit (CORBA::Long IDOfQuad,
|
||||
SMESH::NumericalFunctor_ptr Criterion);
|
||||
void SplitVolumesIntoTetra (SMESH::SMESH_IDSource_ptr elems,
|
||||
CORBA::Short methodFlags);
|
||||
CORBA::Short methodFlags) throw (SALOME::SALOME_Exception);
|
||||
|
||||
CORBA::Boolean Smooth(const SMESH::long_array & IDsOfElements,
|
||||
const SMESH::long_array & IDsOfFixedNodes,
|
||||
|
||||
@ -2053,6 +2053,16 @@ class Mesh:
|
||||
def ElemNbFaces(self, id):
|
||||
return self.mesh.ElemNbFaces(id)
|
||||
|
||||
## Returns nodes of given face (counted from zero) for given volumic element.
|
||||
# @ingroup l1_meshinfo
|
||||
def GetElemFaceNodes(self,elemId, faceIndex):
|
||||
return self.mesh.GetElemFaceNodes(elemId, faceIndex)
|
||||
|
||||
## Returns an element based on all given nodes.
|
||||
# @ingroup l1_meshinfo
|
||||
def FindElementByNodes(self,nodes):
|
||||
return self.mesh.FindElementByNodes(nodes)
|
||||
|
||||
## Returns true if the given element is a polygon
|
||||
# @ingroup l1_meshinfo
|
||||
def IsPoly(self, id):
|
||||
@ -2432,6 +2442,17 @@ class Mesh:
|
||||
def BestSplit (self, IDOfQuad, theCriterion):
|
||||
return self.editor.BestSplit(IDOfQuad, self.smeshpyD.GetFunctor(theCriterion))
|
||||
|
||||
## Splits volumic elements into tetrahedrons
|
||||
# @param elemIDs either list of elements or mesh or group or submesh
|
||||
# @param method flags passing splitting method:
|
||||
# 1 - split the hexahedron into 5 tetrahedrons
|
||||
# 2 - split the hexahedron into 6 tetrahedrons
|
||||
# @ingroup l2_modif_cutquadr
|
||||
def SplitVolumesIntoTetra(self, elemIDs, method=1 ):
|
||||
if isinstance( elemIDs, Mesh ):
|
||||
elemIDs = elemIDs.GetMesh()
|
||||
self.editor.SplitVolumesIntoTetra(elemIDs, method)
|
||||
|
||||
## Splits quadrangle faces near triangular facets of volumes
|
||||
#
|
||||
# @ingroup l1_auxiliary
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user