From: eap Date: Thu, 6 Sep 2012 14:07:24 +0000 (+0000) Subject: 0021559: EDF 2175 SMESH: Hexa/Tetra mixed meshes X-Git-Tag: V6_6_0a1~134 X-Git-Url: http://git.salome-platform.org/gitweb/?a=commitdiff_plain;h=7f64a1c94a6ee08c4076021bfc2f7b7415df628e;p=modules%2Fsmesh.git 0021559: EDF 2175 SMESH: Hexa/Tetra mixed meshes 1) + static std::vector< std::string > GetPluginXMLPaths(); 2) In GetAlgo(), choose a concurrent 2D algorithm whose output is suitable to both different 3D algos on SOLIDs --- diff --git a/src/SMESH/SMESH_Gen.cxx b/src/SMESH/SMESH_Gen.cxx index dae945eec..df6424696 100644 --- a/src/SMESH/SMESH_Gen.cxx +++ b/src/SMESH/SMESH_Gen.cxx @@ -43,6 +43,7 @@ #include "Utils_ExceptHandlers.hxx" #include +#include #include "memoire.h" @@ -896,6 +897,176 @@ bool SMESH_Gen::IsGlobalHypothesis(const SMESH_Hypothesis* theHyp, SMESH_Mesh& a return aMesh.GetHypothesis( aMesh.GetMeshDS()->ShapeToMesh(), filter, false ); } +//================================================================================ +/*! + * \brief Return paths to xml files of plugins + */ +//================================================================================ + +std::vector< std::string > SMESH_Gen::GetPluginXMLPaths() +{ + // Get paths to xml files of plugins + vector< string > xmlPaths; + string sep; + if ( const char* meshersList = getenv("SMESH_MeshersList") ) + { + string meshers = meshersList, plugin; + string::size_type from = 0, pos; + while ( from < meshers.size() ) + { + // cut off plugin name + pos = meshers.find( ':', from ); + if ( pos != string::npos ) + plugin = meshers.substr( from, pos-from ); + else + plugin = meshers.substr( from ), pos = meshers.size(); + from = pos + 1; + + // get PLUGIN_ROOT_DIR path + string rootDirVar, pluginSubDir = plugin; + if ( plugin == "StdMeshers" ) + rootDirVar = "SMESH", pluginSubDir = "smesh"; + else + for ( pos = 0; pos < plugin.size(); ++pos ) + rootDirVar += toupper( plugin[pos] ); + rootDirVar += "_ROOT_DIR"; + + const char* rootDir = getenv( rootDirVar.c_str() ); + if ( !rootDir || strlen(rootDir) == 0 ) + { + rootDirVar = plugin + "_ROOT_DIR"; // HexoticPLUGIN_ROOT_DIR + rootDir = getenv( rootDirVar.c_str() ); + if ( !rootDir || strlen(rootDir) == 0 ) continue; + } + + // get a separator from rootDir + for ( pos = strlen( rootDir )-1; pos >= 0 && sep.empty(); --pos ) + if ( rootDir[pos] == '/' || rootDir[pos] == '\\' ) + { + sep = rootDir[pos]; + break; + } +#ifdef WNT + if (sep.empty() ) sep = "\\"; +#else + if (sep.empty() ) sep = "/"; +#endif + + // get a path to resource file + string xmlPath = rootDir; + if ( xmlPath[ xmlPath.size()-1 ] != sep[0] ) + xmlPath += sep; + xmlPath += "share" + sep + "salome" + sep + "resources" + sep; + for ( pos = 0; pos < pluginSubDir.size(); ++pos ) + xmlPath += tolower( pluginSubDir[pos] ); + xmlPath += sep + plugin + ".xml"; + bool fileOK; +#ifdef WNT + fileOK = (GetFileAttributes(xmlPath.c_str()) != INVALID_FILE_ATTRIBUTES); +#else + fileOK = (access(xmlPath.c_str(), F_OK) == 0); +#endif + if ( fileOK ) + xmlPaths.push_back( xmlPath ); + } + } + + return xmlPaths; +} + +//======================================================================= +namespace // Access to type of input and output of an algorithm +//======================================================================= +{ + struct AlgoData + { + int _dim; + set _inElemTypes; // acceptable types of input mesh element + set _outElemTypes; // produced types of mesh elements + + bool IsCompatible( const AlgoData& algo2 ) const + { + if ( _dim > algo2._dim ) return algo2.IsCompatible( *this ); + // algo2 is of highter dimension + if ( _outElemTypes.empty() || algo2._inElemTypes.empty() ) + return false; + bool compatible = true; + set::const_iterator myOutType = _outElemTypes.begin(); + for ( ; myOutType != _outElemTypes.end() && compatible; ++myOutType ) + compatible = algo2._inElemTypes.count( *myOutType ); + return compatible; + } + }; + + //================================================================================ + /*! + * \brief Return AlgoData of the algorithm + */ + //================================================================================ + + const AlgoData& getAlgoData( const SMESH_Algo* algo ) + { + static map< string, AlgoData > theDataByName; + if ( theDataByName.empty() ) + { + // Read Plugin.xml files + vector< string > xmlPaths = SMESH_Gen::GetPluginXMLPaths(); + LDOMParser xmlParser; + for ( size_t i = 0; i < xmlPaths.size(); ++i ) + { + bool error = xmlParser.parse( xmlPaths[i].c_str() ); + if ( error ) + { + TCollection_AsciiString data; + INFOS( xmlParser.GetError(data) ); + continue; + } + // + // + LDOM_Document xmlDoc = xmlParser.getDocument(); + LDOM_NodeList algoNodeList = xmlDoc.getElementsByTagName( "algorithm" ); + for ( int i = 0; i < algoNodeList.getLength(); ++i ) + { + LDOM_Node algoNode = algoNodeList.item( i ); + LDOM_Element& algoElem = (LDOM_Element&) algoNode; + TCollection_AsciiString algoType = algoElem.getAttribute("type"); + TCollection_AsciiString input = algoElem.getAttribute("input"); + TCollection_AsciiString output = algoElem.getAttribute("output"); + TCollection_AsciiString dim = algoElem.getAttribute("dim"); + AlgoData & data = theDataByName[ algoType.ToCString() ]; + data._dim = dim.IntegerValue(); + for ( int isInput = 0; isInput < 2; ++isInput ) + { + TCollection_AsciiString& typeStr = isInput ? input : output; + set& typeSet = isInput ? data._inElemTypes : data._outElemTypes; + int beg = 1, end; + while ( beg <= typeStr.Length() ) + { + while ( beg < typeStr.Length() && !isalpha( typeStr.Value( beg ) )) + ++beg; + end = beg; + while ( end < typeStr.Length() && isalpha( typeStr.Value( end + 1 ) )) + ++end; + if ( end > beg ) + { + TCollection_AsciiString typeName = typeStr.SubString( beg, end ); + if ( typeName == "EDGE" ) typeSet.insert( SMDSGeom_EDGE ); + else if ( typeName == "TRIA" ) typeSet.insert( SMDSGeom_TRIANGLE ); + else if ( typeName == "QUAD" ) typeSet.insert( SMDSGeom_QUADRANGLE ); + } + beg = end + 1; + } + } + } + } + } + return theDataByName[ algo->GetName() ]; + } +} + //============================================================================= /*! * Finds algo to mesh a shape. Optionally returns a shape the found algo is bound to @@ -909,7 +1080,61 @@ SMESH_Algo *SMESH_Gen::GetAlgo(SMESH_Mesh & aMesh, SMESH_HypoFilter filter( SMESH_HypoFilter::IsAlgo() ); filter.And( filter.IsApplicableTo( aShape )); - return (SMESH_Algo*) aMesh.GetHypothesis( aShape, filter, true, assignedTo ); + TopoDS_Shape assignedToShape; + SMESH_Algo* algo = + (SMESH_Algo*) aMesh.GetHypothesis( aShape, filter, true, &assignedToShape ); + + if ( algo && + aShape.ShapeType() == TopAbs_FACE && + !aShape.IsSame( assignedToShape ) && + SMESH_MesherHelper::NbAncestors( aShape, aMesh, TopAbs_SOLID ) > 1 ) + { + // Issue 0021559. If there is another 2D algo with different types of output + // elements that can be used to mesh aShape, and 3D algos on adjacent SOLIDs + // have different types of input elements, we choose a most appropriate 2D algo. + + // try to find a concurrent 2D algo + filter.AndNot( filter.Is( algo )); + TopoDS_Shape assignedToShape2; + SMESH_Algo* algo2 = + (SMESH_Algo*) aMesh.GetHypothesis( aShape, filter, true, &assignedToShape2 ); + if ( algo2 && + assignedToShape2.ShapeType() == assignedToShape.ShapeType() && + aMesh.IsOrderOK( aMesh.GetSubMesh( assignedToShape2 ), + aMesh.GetSubMesh( assignedToShape ))) + { + // get algos on the adjacent SOLIDs + filter.Init( filter.IsAlgo() ).And( filter.HasDim( 3 )); + vector< SMESH_Algo* > algos3D; + PShapeIteratorPtr solidIt = SMESH_MesherHelper::GetAncestors( aShape, aMesh, + TopAbs_SOLID ); + while ( const TopoDS_Shape* solid = solidIt->next() ) + if ( SMESH_Algo* algo3D = (SMESH_Algo*) aMesh.GetHypothesis( *solid, filter, true )) + { + algos3D.push_back( algo3D ); + filter.AndNot( filter.Is( algo3D )); + } + // check compatibility of algos + if ( algos3D.size() > 1 ) + { + const AlgoData& algoData = getAlgoData( algo ); + const AlgoData& algoData2 = getAlgoData( algo2 ); + const AlgoData& algoData3d0 = getAlgoData( algos3D[0] ); + const AlgoData& algoData3d1 = getAlgoData( algos3D[1] ); + if (( algoData2.IsCompatible( algoData3d0 ) && + algoData2.IsCompatible( algoData3d1 )) + && + !(algoData.IsCompatible( algoData3d0 ) && + algoData.IsCompatible( algoData3d1 ))) + algo = algo2; + } + } + } + + if ( assignedTo && algo ) + * assignedTo = assignedToShape; + + return algo; } //=============================================================================