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0020832: EDF 1359 SMESH : Automatic meshing of boundary layers

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make SMESH_ElementSearcher work on a sub-set of elements
This commit is contained in:
eap 2011-01-18 11:03:09 +00:00
parent c0b03d98ac
commit 121d45ed88
2 changed files with 55 additions and 42 deletions
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28
src/SMESH/SMESH_MeshEditor.cxx
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@ -6296,7 +6296,7 @@ namespace // Utils used in SMESH_ElementSearcherImpl::FindElementsByPoint()
{ {
public: public:
ElementBndBoxTree(const SMDS_Mesh& mesh, SMDSAbs_ElementType elemType, double tolerance = NodeRadius ); ElementBndBoxTree(const SMDS_Mesh& mesh, SMDSAbs_ElementType elemType, SMDS_ElemIteratorPtr theElemIt = SMDS_ElemIteratorPtr(), double tolerance = NodeRadius );
void getElementsNearPoint( const gp_Pnt& point, TIDSortedElemSet& foundElems); void getElementsNearPoint( const gp_Pnt& point, TIDSortedElemSet& foundElems);
void getElementsNearLine ( const gp_Ax1& line, TIDSortedElemSet& foundElems); void getElementsNearLine ( const gp_Ax1& line, TIDSortedElemSet& foundElems);
~ElementBndBoxTree(); ~ElementBndBoxTree();
@ -6323,13 +6323,13 @@ namespace // Utils used in SMESH_ElementSearcherImpl::FindElementsByPoint()
*/ */
//================================================================================ //================================================================================
ElementBndBoxTree::ElementBndBoxTree(const SMDS_Mesh& mesh, SMDSAbs_ElementType elemType, double tolerance) ElementBndBoxTree::ElementBndBoxTree(const SMDS_Mesh& mesh, SMDSAbs_ElementType elemType, SMDS_ElemIteratorPtr theElemIt, double tolerance)
:SMESH_Octree( new SMESH_Octree::Limit( MaxLevel, /*minSize=*/0. )) :SMESH_Octree( new SMESH_Octree::Limit( MaxLevel, /*minSize=*/0. ))
{ {
int nbElems = mesh.GetMeshInfo().NbElements( elemType ); int nbElems = mesh.GetMeshInfo().NbElements( elemType );
_elements.reserve( nbElems ); _elements.reserve( nbElems );
SMDS_ElemIteratorPtr elemIt = mesh.elementsIterator( elemType ); SMDS_ElemIteratorPtr elemIt = theElemIt ? theElemIt : mesh.elementsIterator( elemType );
while ( elemIt->more() ) while ( elemIt->more() )
_elements.push_back( new ElementBox( elemIt->next(),tolerance )); _elements.push_back( new ElementBox( elemIt->next(),tolerance ));
@ -6477,6 +6477,7 @@ namespace // Utils used in SMESH_ElementSearcherImpl::FindElementsByPoint()
struct SMESH_ElementSearcherImpl: public SMESH_ElementSearcher struct SMESH_ElementSearcherImpl: public SMESH_ElementSearcher
{ {
SMESHDS_Mesh* _mesh; SMESHDS_Mesh* _mesh;
SMDS_ElemIteratorPtr _meshPartIt;
ElementBndBoxTree* _ebbTree; ElementBndBoxTree* _ebbTree;
SMESH_NodeSearcherImpl* _nodeSearcher; SMESH_NodeSearcherImpl* _nodeSearcher;
SMDSAbs_ElementType _elementType; SMDSAbs_ElementType _elementType;
@ -6484,8 +6485,8 @@ struct SMESH_ElementSearcherImpl: public SMESH_ElementSearcher
bool _outerFacesFound; bool _outerFacesFound;
set<const SMDS_MeshElement*> _outerFaces; // empty means "no internal faces at all" set<const SMDS_MeshElement*> _outerFaces; // empty means "no internal faces at all"
SMESH_ElementSearcherImpl( SMESHDS_Mesh& mesh ) SMESH_ElementSearcherImpl( SMESHDS_Mesh& mesh, SMDS_ElemIteratorPtr elemIt=SMDS_ElemIteratorPtr())
: _mesh(&mesh),_ebbTree(0),_nodeSearcher(0), _tolerance(-1), _outerFacesFound(false) {} : _mesh(&mesh),_meshPartIt(elemIt),_ebbTree(0),_nodeSearcher(0),_tolerance(-1),_outerFacesFound(false) {}
~SMESH_ElementSearcherImpl() ~SMESH_ElementSearcherImpl()
{ {
if ( _ebbTree ) delete _ebbTree; _ebbTree = 0; if ( _ebbTree ) delete _ebbTree; _ebbTree = 0;
@ -6773,7 +6774,7 @@ FindElementsByPoint(const gp_Pnt& point,
if ( !_ebbTree || _elementType != type ) if ( !_ebbTree || _elementType != type )
{ {
if ( _ebbTree ) delete _ebbTree; if ( _ebbTree ) delete _ebbTree;
_ebbTree = new ElementBndBoxTree( *_mesh, _elementType = type, tolerance ); _ebbTree = new ElementBndBoxTree( *_mesh, _elementType = type, _meshPartIt, tolerance );
} }
TIDSortedElemSet suspectElems; TIDSortedElemSet suspectElems;
_ebbTree->getElementsNearPoint( point, suspectElems ); _ebbTree->getElementsNearPoint( point, suspectElems );
@ -6797,7 +6798,7 @@ TopAbs_State SMESH_ElementSearcherImpl::GetPointState(const gp_Pnt& point)
if ( !_ebbTree || _elementType != SMDSAbs_Face ) if ( !_ebbTree || _elementType != SMDSAbs_Face )
{ {
if ( _ebbTree ) delete _ebbTree; if ( _ebbTree ) delete _ebbTree;
_ebbTree = new ElementBndBoxTree( *_mesh, _elementType = SMDSAbs_Face ); _ebbTree = new ElementBndBoxTree( *_mesh, _elementType = SMDSAbs_Face, _meshPartIt );
} }
// Algo: analyse transition of a line starting at the point through mesh boundary; // Algo: analyse transition of a line starting at the point through mesh boundary;
// try three lines parallel to axis of the coordinate system and perform rough // try three lines parallel to axis of the coordinate system and perform rough
@ -7021,7 +7022,7 @@ void SMESH_ElementSearcherImpl::GetElementsNearLine( const gp_Ax1&
if ( !_ebbTree || _elementType != type ) if ( !_ebbTree || _elementType != type )
{ {
if ( _ebbTree ) delete _ebbTree; if ( _ebbTree ) delete _ebbTree;
_ebbTree = new ElementBndBoxTree( *_mesh, _elementType = type ); _ebbTree = new ElementBndBoxTree( *_mesh, _elementType = type, _meshPartIt );
} }
TIDSortedElemSet suspectFaces; // elements possibly intersecting the line TIDSortedElemSet suspectFaces; // elements possibly intersecting the line
_ebbTree->getElementsNearLine( line, suspectFaces ); _ebbTree->getElementsNearLine( line, suspectFaces );
@ -7039,6 +7040,17 @@ SMESH_ElementSearcher* SMESH_MeshEditor::GetElementSearcher()
return new SMESH_ElementSearcherImpl( *GetMeshDS() ); return new SMESH_ElementSearcherImpl( *GetMeshDS() );
} }
//=======================================================================
/*!
* \brief Return SMESH_ElementSearcher
*/
//=======================================================================
SMESH_ElementSearcher* SMESH_MeshEditor::GetElementSearcher(SMDS_ElemIteratorPtr elemIt)
{
return new SMESH_ElementSearcherImpl( *GetMeshDS(), elemIt );
}
//======================================================================= //=======================================================================
/*! /*!
* \brief Return true if the point is IN or ON of the element * \brief Return true if the point is IN or ON of the element

1
src/SMESH/SMESH_MeshEditor.hxx
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@ -407,6 +407,7 @@ public:
* \brief Return SMESH_ElementSearcher. The caller is responsible for deleteing it * \brief Return SMESH_ElementSearcher. The caller is responsible for deleteing it
*/ */
SMESH_ElementSearcher* GetElementSearcher(); SMESH_ElementSearcher* GetElementSearcher();
SMESH_ElementSearcher* GetElementSearcher( SMDS_ElemIteratorPtr elemIt );
/*! /*!
* \brief Return true if the point is IN or ON of the element * \brief Return true if the point is IN or ON of the element
*/ */