From: eap Date: Thu, 16 May 2013 16:36:26 +0000 (+0000) Subject: 0022098: EDF 2036 SMESH: Create groups from none conected parts of a mesh X-Git-Tag: V7_3_0a1~464 X-Git-Url: http://git.salome-platform.org/gitweb/?p=modules%2Fsmesh.git;a=commitdiff_plain;h=101919845f4f9504b3abad75a027b2938cb11924 0022098: EDF 2036 SMESH: Create groups from none conected parts of a mesh +#include "SMESH_MeshAlgos.hxx" + class SMESHCONTROLS_EXPORT ConnectedElements: public virtual Predicate --- diff --git a/src/Controls/SMESH_Controls.cxx b/src/Controls/SMESH_Controls.cxx index fa7086164..b78c2f0f7 100644 --- a/src/Controls/SMESH_Controls.cxx +++ b/src/Controls/SMESH_Controls.cxx @@ -33,6 +33,7 @@ #include "SMESHDS_GroupBase.hxx" #include "SMESHDS_Mesh.hxx" #include "SMESH_OctreeNode.hxx" +#include "SMESH_MeshAlgos.hxx" #include #include @@ -2793,6 +2794,148 @@ SMDSAbs_EntityType ElemEntityType::GetElemEntityType() const return myEntityType; } +//================================================================================ +/*! + * \brief Class ConnectedElements + */ +//================================================================================ + +ConnectedElements::ConnectedElements(): + myNodeID(0), myType( SMDSAbs_All ), myOkIDsReady( false ) {} + +SMDSAbs_ElementType ConnectedElements::GetType() const +{ return myType; } + +int ConnectedElements::GetNode() const +{ return myXYZ.empty() ? myNodeID : 0; } // myNodeID can be found by myXYZ + +std::vector ConnectedElements::GetPoint() const +{ return myXYZ; } + +void ConnectedElements::clearOkIDs() +{ myOkIDsReady = false; myOkIDs.clear(); } + +void ConnectedElements::SetType( SMDSAbs_ElementType theType ) +{ + if ( myType != theType || myMeshModifTracer.IsMeshModified() ) + clearOkIDs(); + myType = theType; +} + +void ConnectedElements::SetMesh( const SMDS_Mesh* theMesh ) +{ + myMeshModifTracer.SetMesh( theMesh ); + if ( myMeshModifTracer.IsMeshModified() ) + { + clearOkIDs(); + if ( !myXYZ.empty() ) + SetPoint( myXYZ[0], myXYZ[1], myXYZ[2] ); // find a node near myXYZ it in a new mesh + } +} + +void ConnectedElements::SetNode( int nodeID ) +{ + myNodeID = nodeID; + myXYZ.clear(); + + bool isSameDomain = false; + if ( myOkIDsReady && myMeshModifTracer.GetMesh() && !myMeshModifTracer.IsMeshModified() ) + if ( const SMDS_MeshNode* n = myMeshModifTracer.GetMesh()->FindNode( myNodeID )) + { + SMDS_ElemIteratorPtr eIt = n->GetInverseElementIterator( myType ); + while ( !isSameDomain && eIt->more() ) + isSameDomain = IsSatisfy( eIt->next()->GetID() ); + } + if ( !isSameDomain ) + clearOkIDs(); +} + +void ConnectedElements::SetPoint( double x, double y, double z ) +{ + myXYZ.resize(3); + myXYZ[0] = x; + myXYZ[1] = y; + myXYZ[2] = z; + myNodeID = 0; + + bool isSameDomain = false; + + // find myNodeID by myXYZ if possible + if ( myMeshModifTracer.GetMesh() ) + { + auto_ptr searcher + ( SMESH_MeshAlgos::GetElementSearcher( (SMDS_Mesh&) *myMeshModifTracer.GetMesh() )); + + vector< const SMDS_MeshElement* > foundElems; + searcher->FindElementsByPoint( gp_Pnt(x,y,z), SMDSAbs_All, foundElems ); + + if ( !foundElems.empty() ) + { + myNodeID = foundElems[0]->GetNode(0)->GetID(); + if ( myOkIDsReady && !myMeshModifTracer.IsMeshModified() ) + isSameDomain = IsSatisfy( foundElems[0]->GetID() ); + } + } + if ( !isSameDomain ) + clearOkIDs(); +} + +bool ConnectedElements::IsSatisfy( long theElementId ) +{ + // Here we do NOT check if the mesh has changed, we do it in Set...() only!!! + + if ( !myOkIDsReady ) + { + if ( !myMeshModifTracer.GetMesh() ) + return false; + const SMDS_MeshNode* node0 = myMeshModifTracer.GetMesh()->FindNode( myNodeID ); + if ( !node0 ) + return false; + + list< const SMDS_MeshNode* > nodeQueue( 1, node0 ); + std::set< int > checkedNodeIDs; + // algo: + // foreach node in nodeQueue: + // foreach element sharing a node: + // add ID of an element of myType to myOkIDs; + // push all element nodes absent from checkedNodeIDs to nodeQueue; + while ( !nodeQueue.empty() ) + { + const SMDS_MeshNode* node = nodeQueue.front(); + nodeQueue.pop_front(); + + // loop on elements sharing the node + SMDS_ElemIteratorPtr eIt = node->GetInverseElementIterator(); + while ( eIt->more() ) + { + // keep elements of myType + const SMDS_MeshElement* element = eIt->next(); + if ( element->GetType() == myType ) + myOkIDs.insert( myOkIDs.end(), element->GetID() ); + + // enqueue nodes of the element + SMDS_ElemIteratorPtr nIt = element->nodesIterator(); + while ( nIt->more() ) + { + const SMDS_MeshNode* n = static_cast< const SMDS_MeshNode* >( nIt->next() ); + if ( checkedNodeIDs.insert( n->GetID() ).second ) + nodeQueue.push_back( n ); + } + } + } + if ( myType == SMDSAbs_Node ) + std::swap( myOkIDs, checkedNodeIDs ); + + size_t totalNbElems = myMeshModifTracer.GetMesh()->GetMeshInfo().NbElements( myType ); + if ( myOkIDs.size() == totalNbElems ) + myOkIDs.clear(); + + myOkIDsReady = true; + } + + return myOkIDs.empty() ? true : myOkIDs.count( theElementId ); +} + //================================================================================ /*! * \brief Class CoplanarFaces diff --git a/src/Controls/SMESH_ControlsDef.hxx b/src/Controls/SMESH_ControlsDef.hxx index a6d9d8596..bc5b9bb74 100644 --- a/src/Controls/SMESH_ControlsDef.hxx +++ b/src/Controls/SMESH_ControlsDef.hxx @@ -302,7 +302,7 @@ namespace SMESH{ /* Class : MultiConnection - Description : Functor for calculating number of faces conneted to the edge + Description : Functor for calculating number of faces connected to the edge */ class SMESHCONTROLS_EXPORT MultiConnection: public virtual NumericalFunctor{ public: @@ -314,7 +314,7 @@ namespace SMESH{ /* Class : MultiConnection2D - Description : Functor for calculating number of faces conneted to the edge + Description : Functor for calculating number of faces connected to the edge */ class SMESHCONTROLS_EXPORT MultiConnection2D: public virtual NumericalFunctor{ public: @@ -945,7 +945,7 @@ namespace SMESH{ void SetType( SMDSAbs_ElementType theType ); virtual SMDSAbs_ElementType GetType() const; void SetGeomType( SMDSAbs_GeometryType theType ); - virtual SMDSAbs_GeometryType GetGeomType() const; + SMDSAbs_GeometryType GetGeomType() const; private: const SMDS_Mesh* myMesh; @@ -979,10 +979,43 @@ namespace SMESH{ }; typedef boost::shared_ptr CoplanarFacesPtr; + /* + Class : ConnectedElements + Description : Predicate to get elements of one domain + */ + class SMESHCONTROLS_EXPORT ConnectedElements: public virtual Predicate + { + public: + ConnectedElements(); + void SetNode( int nodeID ); + void SetPoint( double x, double y, double z ); + int GetNode() const; + std::vector GetPoint() const; + + void SetType( SMDSAbs_ElementType theType ); + virtual SMDSAbs_ElementType GetType() const; + + virtual void SetMesh( const SMDS_Mesh* theMesh ); + virtual bool IsSatisfy( long theElementId ); + + //const std::set& GetDomainIDs() const { return myOkIDs; } + + private: + int myNodeID; + std::vector myXYZ; + SMDSAbs_ElementType myType; + TMeshModifTracer myMeshModifTracer; + + void clearOkIDs(); + bool myOkIDsReady; + std::set< int > myOkIDs; // empty means that there is one domain + }; + typedef boost::shared_ptr ConnectedElementsPtr; + /* FILTER */ - class SMESHCONTROLS_EXPORT Filter{ + class SMESHCONTROLS_EXPORT Filter { public: Filter(); virtual ~Filter();