From: eap Date: Tue, 30 Nov 2010 10:38:18 +0000 (+0000) Subject: 0020945: EDF 1465 SMESH: create a new mesh from a selected group or from selected... X-Git-Url: http://git.salome-platform.org/gitweb/?a=commitdiff_plain;h=3096113268c1546eabb9dbbd1b43c31c86c4c6b2;hp=cce300634f2713209bb7e7be1f774b8958afe20a;p=modules%2Fsmesh.git 0020945: EDF 1465 SMESH: create a new mesh from a selected group or from selected elements + SMESH_Mesh CopyMesh(in SMESH_IDSource meshPart, + in string meshName, + in boolean toCopyGroups, + in boolean toKeepIDs) --- diff --git a/idl/SMESH_Gen.idl b/idl/SMESH_Gen.idl index 3c375e625..d958719e3 100644 --- a/idl/SMESH_Gen.idl +++ b/idl/SMESH_Gen.idl @@ -221,10 +221,45 @@ module SMESH raises ( SALOME::SALOME_Exception ); /*! - * Create a Mesh object, without a geometry shape reference + * Create a mesh by copying a part of another mesh + * \param meshPart - a part of mesh to copy + * \param meshName - a name of the new mesh + * \param toCopyGroups - to create in the new mesh groups + * the copied elements belongs to + * \param toKeepIDs - to preserve IDs of the copied elements or not */ -// SMESH_Mesh NewEmpty() -// raises ( SALOME::SALOME_Exception ); + SMESH_Mesh CopyMesh(in SMESH_IDSource meshPart, + in string meshName, + in boolean toCopyGroups, + in boolean toKeepIDs) + raises ( SALOME::SALOME_Exception ); + + /*! + * Concatenate the given meshes into one mesh. + * Union groups with the same name and type if + * theUniteIdenticalGroups flag is true. + * Merge coincident nodes and elements if + * theMergeNodesAndElements flag is true. + */ + SMESH_Mesh Concatenate(in mesh_array theMeshesArray, + in boolean theUniteIdenticalGroups, + in boolean theMergeNodesAndElements, + in double theMergeTolerance) + raises ( SALOME::SALOME_Exception ); + + /*! + * Concatenate the given meshes into one mesh. + * Union groups with the same name and type if + * theUniteIdenticalGroups flag is true. + * Merge coincident nodes and elements if + * theMergeNodesAndElements flag is true. + * Create the groups of all elements from initial meshes. + */ + SMESH_Mesh ConcatenateWithGroups(in mesh_array theMeshesArray, + in boolean theUniteIdenticalGroups, + in boolean theMergeNodesAndElements, + in double theMergeTolerance) + raises ( SALOME::SALOME_Exception ); /*! * Mesh a subShape. @@ -309,33 +344,6 @@ module SMESH in long theElementID) raises ( SALOME::SALOME_Exception ); - /*! - * Concatenate the given meshes into one mesh. - * Union groups with the same name and type if - * theUniteIdenticalGroups flag is true. - * Merge coincident nodes and elements if - * theMergeNodesAndElements flag is true. - */ - SMESH_Mesh Concatenate(in mesh_array theMeshesArray, - in boolean theUniteIdenticalGroups, - in boolean theMergeNodesAndElements, - in double theMergeTolerance) - raises ( SALOME::SALOME_Exception ); - - /*! - * Concatenate the given meshes into one mesh. - * Union groups with the same name and type if - * theUniteIdenticalGroups flag is true. - * Merge coincident nodes and elements if - * theMergeNodesAndElements flag is true. - * Create the groups of all elements from initial meshes. - */ - SMESH_Mesh ConcatenateWithGroups(in mesh_array theMeshesArray, - in boolean theUniteIdenticalGroups, - in boolean theMergeNodesAndElements, - in double theMergeTolerance) - raises ( SALOME::SALOME_Exception ); - /*! * \brief Return id of object, registered in current study context * diff --git a/src/SMESH_I/SMESH_Gen_i.cxx b/src/SMESH_I/SMESH_Gen_i.cxx index a5bd29975..0a76af809 100644 --- a/src/SMESH_I/SMESH_Gen_i.cxx +++ b/src/SMESH_I/SMESH_Gen_i.cxx @@ -91,9 +91,10 @@ #include "SMDS_EdgePosition.hxx" #include "SMDS_FacePosition.hxx" -#include "SMDS_VertexPosition.hxx" -#include "SMDS_SpacePosition.hxx" #include "SMDS_PolyhedralVolumeOfNodes.hxx" +#include "SMDS_SetIterator.hxx" +#include "SMDS_SpacePosition.hxx" +#include "SMDS_VertexPosition.hxx" #include CORBA_SERVER_HEADER(SMESH_Group) #include CORBA_SERVER_HEADER(SMESH_Filter) @@ -898,7 +899,7 @@ SMESH::SMESH_Mesh_ptr SMESH_Gen_i::CreateMeshesFromUNV( const char* theFileName aServant->ImportUNVFile( theFileName ); // Dump creation of groups - aServant->GetGroups(); + SMESH::ListOfGroups_var groups = aServant->GetGroups(); return aMesh._retn(); } @@ -977,7 +978,7 @@ SMESH::mesh_array* SMESH_Gen_i::CreateMeshesFromMED( const char* theFileName, } // Dump creation of groups for ( int i = 0; i < aResult->length(); ++i ) - aResult[ i ]->GetGroups(); + SMESH::ListOfGroups_var groups = aResult[ i ]->GetGroups(); return aResult._retn(); } @@ -2201,6 +2202,214 @@ SMESH_Gen_i::ConcatenateCommon(const SMESH::mesh_array& theMeshesArray, return aNewMesh._retn(); } +//================================================================================ +/*! + * \brief Create a mesh by copying a part of another mesh + * \param meshPart - a part of mesh to copy + * \param toCopyGroups - to create in the new mesh groups + * the copied elements belongs to + * \param toKeepIDs - to preserve IDs of the copied elements or not + * \retval SMESH::SMESH_Mesh_ptr - the new mesh + */ +//================================================================================ + +SMESH::SMESH_Mesh_ptr SMESH_Gen_i::CopyMesh(SMESH::SMESH_IDSource_ptr meshPart, + const char* meshName, + CORBA::Boolean toCopyGroups, + CORBA::Boolean toKeepIDs) +{ + Unexpect aCatch(SALOME_SalomeException); + + TPythonDump* pyDump = new TPythonDump; // prevent dump from CreateMesh() + + // 1. Get source mesh + + if ( CORBA::is_nil( meshPart )) + THROW_SALOME_CORBA_EXCEPTION( "bad IDSource", SALOME::BAD_PARAM ); + + SMESH::SMESH_Mesh_var srcMesh = meshPart->GetMesh(); + SMESH_Mesh_i* srcMesh_i = SMESH::DownCast( srcMesh ); + if ( !srcMesh_i ) + THROW_SALOME_CORBA_EXCEPTION( "bad mesh of IDSource", SALOME::BAD_PARAM ); + + SMESHDS_Mesh* srcMeshDS = srcMesh_i->GetImpl().GetMeshDS(); + + // 2. Make a new mesh + + SMESH::SMESH_Mesh_var newMesh = CreateMesh(GEOM::GEOM_Object::_nil()); + SMESH_Mesh_i* newMesh_i = SMESH::DownCast( newMesh ); + if ( !newMesh_i ) + THROW_SALOME_CORBA_EXCEPTION( "can't create a mesh", SALOME::INTERNAL_ERROR ); + SALOMEDS::SObject_var meshSO = ObjectToSObject(myCurrentStudy, newMesh ); + if ( !meshSO->_is_nil() ) + { + SetName( meshSO, meshName, "Mesh" ); + SetPixMap( meshSO, "ICON_SMESH_TREE_MESH_IMPORTED"); + } + SMESHDS_Mesh* newMeshDS = newMesh_i->GetImpl().GetMeshDS(); + ::SMESH_MeshEditor editor( &newMesh_i->GetImpl() ); + + // 3. Get elements to copy + + SMDS_ElemIteratorPtr srcElemIt; + TIDSortedElemSet srcElems; + SMESH::array_of_ElementType_var srcElemTypes = meshPart->GetTypes(); + if ( SMESH::DownCast( meshPart )) + { + srcElemIt = srcMeshDS->elementsIterator(); + } + else + { + SMESH::long_array_var ids = meshPart->GetIDs(); + if ( srcElemTypes->length() == 1 && srcElemTypes[0] == SMESH::NODE ) // group of nodes + { + for (int i=0; i < ids->length(); i++) + if ( const SMDS_MeshElement * elem = srcMeshDS->FindNode( ids[i] )) + srcElems.insert( elem ); + } + else + { + for (int i=0; i < ids->length(); i++) + if ( const SMDS_MeshElement * elem = srcMeshDS->FindElement( ids[i] )) + srcElems.insert( elem ); + } + if ( srcElems.empty() ) + return newMesh._retn(); + + typedef SMDS_SetIterator< SMDS_pElement, TIDSortedElemSet::const_iterator > ElIter; + srcElemIt = SMDS_ElemIteratorPtr( new ElIter( srcElems.begin(), srcElems.end() )); + } + + // 4. Copy elements + + typedef map TE2EMap; + TE2EMap e2eMapByType[ SMDSAbs_NbElementTypes ]; + TE2EMap& n2nMap = e2eMapByType[ SMDSAbs_Node ]; + int iN; + const SMDS_MeshNode *nSrc, *nTgt; + vector< const SMDS_MeshNode* > nodes; + while ( srcElemIt->more() ) + { + const SMDS_MeshElement * elem = srcElemIt->next(); + nodes.resize( elem->NbNodes()); + SMDS_ElemIteratorPtr nIt = elem->nodesIterator(); + if ( toKeepIDs ) { + for ( iN = 0; nIt->more(); ++iN ) + { + nSrc = static_cast( nIt->next() ); + nTgt = newMeshDS->FindNode( nSrc->GetID()); + if ( !nTgt ) + nTgt = newMeshDS->AddNodeWithID( nSrc->X(), nSrc->Y(), nSrc->Z(), nSrc->GetID()); + nodes[ iN ] = nTgt; + } + } + else { + for ( iN = 0; nIt->more(); ++iN ) + { + nSrc = static_cast( nIt->next() ); + TE2EMap::iterator n2n = n2nMap.insert( make_pair( nSrc, SMDS_pNode(0) )).first; + if ( !n2n->second ) + n2n->second = newMeshDS->AddNode( nSrc->X(), nSrc->Y(), nSrc->Z() ); + nodes[ iN ] = (const SMDS_MeshNode*) n2n->second; + } + } + if ( elem->GetType() != SMDSAbs_Node ) + { + int ID = toKeepIDs ? elem->GetID() : 0; + const SMDS_MeshElement * newElem = editor.AddElement( nodes, + elem->GetType(), + elem->IsPoly(), + ID); + if ( toCopyGroups && !toKeepIDs ) + e2eMapByType[ elem->GetType() ].insert( make_pair( elem, newElem )); + } + } + + // 5. Copy groups + + int nbNewGroups = 0; + if ( toCopyGroups ) + { + SMESH::ElementType* typesBeg = & srcElemTypes[0]; + SMESH::ElementType* typesEnd = typesBeg+srcElemTypes->length(); + + SMESH_Mesh::GroupIteratorPtr gIt = srcMesh_i->GetImpl().GetGroups(); + while ( gIt->more() ) + { + SMESH_Group* group = gIt->next(); + const SMESHDS_GroupBase* groupDS = group->GetGroupDS(); + + // Check group type. We copy nodal groups containing nodes of copied element + SMDSAbs_ElementType groupType = groupDS->GetType(); + if ( groupType != SMDSAbs_Node && + std::find( typesBeg, typesEnd, groupType ) == typesEnd ) + continue; // group type differs from types of meshPart + + // Find copied elements in the group + vector< const SMDS_MeshElement* > groupElems; + SMDS_ElemIteratorPtr eIt = groupDS->GetElements(); + if ( toKeepIDs ) + { + const SMDS_MeshElement* foundElem; + if ( groupType == SMDSAbs_Node ) + { + while ( eIt->more() ) + if (( foundElem = newMeshDS->FindNode( eIt->next()->GetID() ))) + groupElems.push_back( foundElem ); + } + else + { + while ( eIt->more() ) + if (( foundElem = newMeshDS->FindElement( eIt->next()->GetID() ))) + groupElems.push_back( foundElem ); + } + } + else + { + TE2EMap & e2eMap = e2eMapByType[ groupDS->GetType() ]; + if ( e2eMap.empty() ) continue; + int minID = e2eMap.begin()->first->GetID(); + int maxID = e2eMap.rbegin()->first->GetID(); + TE2EMap::iterator e2e; + while ( eIt->more() && groupElems.size() < e2eMap.size()) + { + const SMDS_MeshElement* e = eIt->next(); + if ( e->GetID() < minID || e->GetID() > maxID ) continue; + if ((e2e = e2eMap.find( e )) != e2eMap.end()) + groupElems.push_back( e2e->second ); + } + } + // Make a new group + if ( !groupElems.empty() ) + { + SMESH::SMESH_Group_var newGroupObj = + newMesh->CreateGroup( SMESH::ElementType(groupType), group->GetName() ); + if ( SMESH_GroupBase_i* newGroup_i = SMESH::DownCast( newGroupObj)) + { + SMESHDS_GroupBase * newGroupDS = newGroup_i->GetGroupDS(); + SMDS_MeshGroup& smdsGroup = ((SMESHDS_Group*)newGroupDS)->SMDSGroup(); + for ( unsigned i = 0; i < groupElems.size(); ++i ) + smdsGroup.Add( groupElems[i] ); + + nbNewGroups++; + } + } + } + } + + *pyDump << newMesh << " = " << this + << ".CopyMesh( " << meshPart << ", " + << toCopyGroups << ", " + << toKeepIDs << ")"; + + delete pyDump; pyDump = 0; // allow dump in GetGroups() + + if ( nbNewGroups > 0 ) // dump created groups + SMESH::ListOfGroups_var groups = newMesh->GetGroups(); + + return newMesh._retn(); +} + //================================================================================ /*! * SMESH_Gen_i::GetMEDVersion diff --git a/src/SMESH_I/SMESH_Gen_i.hxx b/src/SMESH_I/SMESH_Gen_i.hxx index b2c90805c..b4003818d 100644 --- a/src/SMESH_I/SMESH_Gen_i.hxx +++ b/src/SMESH_I/SMESH_Gen_i.hxx @@ -236,6 +236,12 @@ public: SMESH::SMESH_Mesh_ptr CreateMeshesFromSTL( const char* theFileName ) throw ( SALOME::SALOME_Exception ); + // Copy a part of mesh + SMESH::SMESH_Mesh_ptr CopyMesh(SMESH::SMESH_IDSource_ptr meshPart, + const char* meshName, + CORBA::Boolean toCopyGroups, + CORBA::Boolean toKeepIDs); + // Compute mesh on a shape CORBA::Boolean Compute( SMESH::SMESH_Mesh_ptr theMesh, GEOM::GEOM_Object_ptr theShapeObject )