From 5c762f5aef42f5c2d5cc95a7b8a8e3e2280ff10e Mon Sep 17 00:00:00 2001 From: eap Date: Thu, 6 May 2010 08:44:54 +0000 Subject: [PATCH] 0020855: [CEA] Problem with ijk algo * Fix difining sharing of block sides * Fix selection of adjacent side --- src/StdMeshers/StdMeshers_HexaFromSkin_3D.cxx | 151 +++++++++++------- 1 file changed, 95 insertions(+), 56 deletions(-) diff --git a/src/StdMeshers/StdMeshers_HexaFromSkin_3D.cxx b/src/StdMeshers/StdMeshers_HexaFromSkin_3D.cxx index abc2af26a..28b628c5c 100644 --- a/src/StdMeshers/StdMeshers_HexaFromSkin_3D.cxx +++ b/src/StdMeshers/StdMeshers_HexaFromSkin_3D.cxx @@ -28,7 +28,9 @@ #include "SMESH_Block.hxx" #include "SMESH_MesherHelper.hxx" -#include "utilities.h" +#include + +//#include "utilities.h" // Define error message #ifdef _DEBUG_ @@ -41,7 +43,7 @@ #endif // Debug output -#define _DUMP_(msg) // cout << msg << endl +#define _DUMP_(msg) //cout << msg << endl @@ -60,6 +62,28 @@ namespace Q_BOTTOM, Q_RIGHT, Q_TOP, Q_LEFT, Q_UNDEFINED }; + + //================================================================================ + /*! + * \brief return logical coordinates (i.e. min or max) of ends of edge + */ + //================================================================================ + + bool getEdgeEnds(EQuadEdge edge, bool& xMax1, bool& yMax1, bool& xMax2, bool& yMax2 ) + { + xMax1=0, yMax1=0, xMax2=1, yMax2=1; + switch( edge ) + { + case Q_BOTTOM: yMax2 = 0; break; + case Q_RIGHT: xMax1 = 1; break; + case Q_TOP: yMax1 = 1; break; + case Q_LEFT: xMax2 = 0; break; + default: + return false; + } + return true; + } + //================================================================================ /*! * \brief return true if a node is at block corner @@ -174,6 +198,12 @@ namespace const SMDS_MeshNode* getNode(int x, int y) const { return _grid_access_( _index( x, y )); } //!< Set node at XY void setNode(int x, int y, const SMDS_MeshNode* n) { _grid_access_( _index( x, y )) = n; } + //!< Return an edge + SMESH_OrientedLink getEdge(EQuadEdge edge) const + { + bool x1, y1, x2, y2; getEdgeEnds( edge, x1, y1, x2, y2 ); + return SMESH_OrientedLink( getCornerNode ( x1, y1 ), getCornerNode( x2, y2 )); + } //!< Return a corner node const SMDS_MeshNode* getCornerNode(bool isXMax, bool isYMax) const { @@ -220,6 +250,12 @@ namespace int i = _index( x, y ); return ( i < 0 || i >= _side->_grid.size()) ? 0 : _side->_grid[i]; } + //!< Return an edge + SMESH_OrientedLink edge(EQuadEdge edge) const + { + bool x1, y1, x2, y2; getEdgeEnds( edge, x1, y1, x2, y2 ); + return SMESH_OrientedLink( cornerNode ( x1, y1 ), cornerNode( x2, y2 )); + } //!< Return a corner node const SMDS_MeshNode* cornerNode(bool isXMax, bool isYMax) const { @@ -243,6 +279,11 @@ namespace _OrientedBlockSide _side[6]; // 6 sides of a sub-block const _OrientedBlockSide& getSide(int i) const { return _side[i]; } + bool hasSide( const _OrientedBlockSide& s) const + { + if ( s ) for (int i=0;i<6;++i) if ( _side[i] && _side[i]._side == s._side ) return true; + return false; + } }; //================================================================================ /*! @@ -275,10 +316,8 @@ namespace side._nbBlocksFound++; if ( side.isBound() ) { - _corner2sides[ side.getCornerNode(0,0) ].erase( &side ); - _corner2sides[ side.getCornerNode(1,0) ].erase( &side ); - _corner2sides[ side.getCornerNode(0,1) ].erase( &side ); - _corner2sides[ side.getCornerNode(1,1) ].erase( &side ); + for ( int e = 0; e < int(Q_UNDEFINED); ++e ) + _edge2sides[ side.getEdge( (EQuadEdge) e ) ].erase( &side ); } } //!< store reason of error @@ -289,7 +328,8 @@ namespace list< _BlockSide > _allSides; vector< _Block > _blocks; - map< const SMDS_MeshNode*, set< _BlockSide* > > _corner2sides; + //map< const SMDS_MeshNode*, set< _BlockSide* > > _corner2sides; + map< SMESH_OrientedLink, set< _BlockSide* > > _edge2sides; }; //================================================================================ @@ -356,10 +396,13 @@ namespace const SMDS_MeshNode* nCorner = side.getCornerNode(isXMax,isYMax ); if ( !isCornerNode( nCorner )) return BAD_MESH_ERR; - _corner2sides[ nCorner ].insert( &side ); + //_corner2sides[ nCorner ].insert( &side ); corners.push_back( nCorner ); cornerFaces.insert( side.getCornerFace( nCorner )); } + for ( int e = 0; e < int(Q_UNDEFINED); ++e ) + _edge2sides[ side.getEdge( (EQuadEdge) e ) ].insert( &side ); + nbFacesOnSides += side.getNbFaces(); } } @@ -394,10 +437,8 @@ namespace { _BlockSide& side = *sideIt; bool isSharedSide = true; - for ( int isXMax = 0; isXMax < 2; ++isXMax ) - for ( int isYMax = 0; isYMax < 2; ++isYMax ) - if ( _corner2sides[ side.getCornerNode(isXMax,isYMax) ].size() < 5 ) - isSharedSide = false; + for ( int e = 0; e < int(Q_UNDEFINED) && isSharedSide; ++e ) + isSharedSide = _edge2sides[ side.getEdge( (EQuadEdge) e ) ].size() > 2; side._nbBlocksFound = 0; side._nbBlocksExpected = isSharedSide ? 2 : 1; nbBlockSides += side._nbBlocksExpected; @@ -430,11 +471,25 @@ namespace if ( ok ) ok = ( block._side[B_BACK] = findBlockSide( B_TOP, Q_TOP, Q_TOP )); + if ( ok ) + { + // check if just found block is same as one of previously found + bool isSame = false; + for ( int i = 1; i < _blocks.size() && !isSame; ++i ) + { + _Block& prevBlock = _blocks[i-1]; + isSame = true; + for ( int j = 0; j < 6 && isSame; ++j ) + isSame = prevBlock.hasSide( block._side[ j ]); + } + ok = !isSame; + } + // count the found sides _DUMP_(endl); for (int i = 0; i < B_UNDEFINED; ++i ) { - _DUMP_("** Block side "<< SBoxSides[i]); + _DUMP_("** Block side "<< SBoxSides[i] <<" "<< block._side[ i ]._side); if ( block._side[ i ] ) { if ( ok && i != B_FRONT) @@ -573,34 +628,13 @@ namespace _OrientedBlockSide& side1 = block._side[ startBlockSide ]; // get corner nodes of the given block edge - bool xMax1=0, yMax1=0, xMax2=1, yMax2=1; - switch( sharedSideEdge1 ) - { - case Q_BOTTOM: yMax2 = 0; break; - case Q_RIGHT: xMax1 = 1; break; - case Q_TOP: yMax1 = 1; break; - case Q_LEFT: xMax2 = 0; break; - default: - error(SMESH_Comment("Internal error at")<<__FILE__<<":"<<__LINE__); - return 0; - } - const SMDS_MeshNode* n1 = side1.cornerNode( xMax1, yMax1); - const SMDS_MeshNode* n2 = side1.cornerNode( xMax2, yMax2); - - set< _BlockSide* >& sidesWithN1 = _corner2sides[ n1 ]; - set< _BlockSide* >& sidesWithN2 = _corner2sides[ n2 ]; - if ( sidesWithN1.empty() || sidesWithN2.empty() ) - { - _DUMP_("no sides by nodes "<< n1->GetID() << " " << n2->GetID() ); - return 0; - } + SMESH_OrientedLink edge = side1.edge( sharedSideEdge1 ); + const SMDS_MeshNode* n1 = edge.node1(); + const SMDS_MeshNode* n2 = edge.node2(); + if ( edge._reversed ) swap( n1, n2 ); // find all sides sharing both nodes n1 and n2 - set< _BlockSide* > sidesOnEdge; - set< _BlockSide* >::iterator sideIt; - std::set_intersection( sidesWithN1.begin(), sidesWithN1.end(), - sidesWithN2.begin(), sidesWithN2.end(), - inserter( sidesOnEdge, sidesOnEdge.begin())); + set< _BlockSide* > sidesOnEdge = _edge2sides[ edge ]; // copy a set // exclude loaded sides of block from sidesOnEdge int nbLoadedSides = 0; @@ -613,12 +647,12 @@ namespace } } int nbSidesOnEdge = sidesOnEdge.size(); - _DUMP_("nbSidesOnEdge "<< nbSidesOnEdge); + _DUMP_("nbSidesOnEdge "<< nbSidesOnEdge << " " << n1->GetID() << "-" << n2->GetID() ); if ( nbSidesOnEdge == 0 ) return 0; _BlockSide* foundSide = 0; - if ( nbSidesOnEdge == 1 || nbSidesOnEdge == 2 && nbLoadedSides == 1 ) + if ( nbSidesOnEdge == 1 /*|| nbSidesOnEdge == 2 && nbLoadedSides == 1 */) { foundSide = *sidesOnEdge.begin(); } @@ -634,42 +668,47 @@ namespace gc /= nbLoadedSides; gp_XYZ p1 ( n1->X(),n1->Y(),n1->Z()), p2 (n2->X(),n2->Y(),n2->Z()); - gp_Vec p2p1( p1 - p2 ); + gp_Vec p1p2( p1, p2 ); const SMDS_MeshElement* face1 = side1->getCornerFace( n1 ); gp_XYZ p1Op = SMESH_MeshEditor::TNodeXYZ( oppositeNode( face1, face1->GetNodeIndex(n1))); gp_Vec side1Dir( p1, p1Op ); + gp_Ax2 pln( p1, p1p2, side1Dir ); // plane with normal p1p2 and X dir side1Dir + _DUMP_(" Select adjacent for "<< side1._side << " - side dir (" + << side1Dir.X() << ", " << side1Dir.Y() << ", " << side1Dir.Z() << ")" ); map < double , _BlockSide* > angleOfSide; - for (sideIt = sidesOnEdge.begin(); sideIt != sidesOnEdge.end(); ++sideIt ) + set< _BlockSide* >::iterator sideIt = sidesOnEdge.begin(); + for (; sideIt != sidesOnEdge.end(); ++sideIt ) { _BlockSide* sideI = *sideIt; const SMDS_MeshElement* faceI = sideI->getCornerFace( n1 ); gp_XYZ p1Op = SMESH_MeshEditor::TNodeXYZ( oppositeNode( faceI, faceI->GetNodeIndex(n1))); gp_Vec sideIDir( p1, p1Op ); - double angle = side1Dir.AngleWithRef( sideIDir, p2p1 ); + // compute angle of (sideIDir projection to pln) and (X dir of pln) + gp_Vec2d sideIDirProj( sideIDir * pln.XDirection(), sideIDir * pln.YDirection()); + double angle = sideIDirProj.Angle( gp::DX2d() ); if ( angle < 0 ) angle += 2 * PI; angleOfSide.insert( make_pair( angle, sideI )); + _DUMP_(" "<< sideI << " - side dir (" + << sideIDir.X() << ", " << sideIDir.Y() << ", " << sideIDir.Z() << ")" + << " angle " << angle); } gp_Vec gcDir( p1, gc ); - double gcAngle = side1Dir.AngleWithRef( gcDir, p2p1 ); + gp_Vec2d gcDirProj( gcDir * pln.XDirection(), gcDir * pln.YDirection()); + double gcAngle = gcDirProj.Angle( gp::DX2d() ); foundSide = gcAngle < 0 ? angleOfSide.rbegin()->second : angleOfSide.begin()->second; + _DUMP_(" selected "<< foundSide ); } // Orient the found side correctly // corners of found side corresponding to nodes n1 and n2 - xMax1= yMax1 = 0; xMax2 = yMax2 = 1; - switch( sharedSideEdge2 ) - { - case Q_BOTTOM: yMax2 = 0; break; - case Q_RIGHT: xMax1 = 1; break; - case Q_TOP: yMax1 = 1; break; - case Q_LEFT: xMax2 = 0; break; - default: - error(SMESH_Comment("Internal error at")<<__FILE__<<":"<<__LINE__); - return 0; - } + bool xMax1, yMax1, xMax2, yMax2; + if ( !getEdgeEnds( sharedSideEdge2, xMax1, yMax1, xMax2, yMax2 )) + return error(SMESH_Comment("Internal error at ")<<__FILE__<<":"<<__LINE__), + _OrientedBlockSide(0); + for ( int ori = 0; ori < _OrientedIndexer::MAX_ORI+1; ++ori ) { _OrientedBlockSide orientedSide( foundSide, ori ); -- 2.30.2