//================================================================================
/*!
- * \brief Return true if applied compute mesh on this shape
+ * \brief Return true if the algorithm can mesh this shape
+ * \param [in] aShape - shape to check
+ * \param [in] toCheckAll - if true, this check returns OK if all shapes are OK,
+ * else, returns OK if at least one shape is OK
*/
//================================================================================
bool StdMeshers_Hexa_3D::IsApplicable( const TopoDS_Shape & aShape, bool toCheckAll )
{
- TopoDS_Vertex theVertex0, theVertex1;
- TopTools_IndexedMapOfOrientedShape theShapeIDMap;
- bool isCurShellApp;
- int nbFoundShells = 0;
- bool isEmpty = true;
- for ( TopExp_Explorer exp0( aShape, TopAbs_SOLID ); exp0.More(); exp0.Next() ){
- nbFoundShells = 0;
- for (TopExp_Explorer exp1( exp0.Current(), TopAbs_SHELL ); exp1.More(); exp1.Next(), ++nbFoundShells){
- TopoDS_Shell shell = TopoDS::Shell(exp1.Current());
- isCurShellApp = SMESH_Block::FindBlockShapes(shell, theVertex0, theVertex1, theShapeIDMap );
- if( ( toCheckAll && !isCurShellApp ) || nbFoundShells == 1 ) return false;
- isEmpty = false;
- }
- if( !toCheckAll && isCurShellApp ) return true;
+ TopExp_Explorer exp0( aShape, TopAbs_SOLID );
+ if ( !exp0.More() ) return false;
+
+ for ( ; exp0.More(); exp0.Next() )
+ {
+ int nbFoundShells = 0;
+ TopExp_Explorer exp1( exp0.Current(), TopAbs_SHELL );
+ for ( ; exp1.More(); exp1.Next(), ++nbFoundShells)
+ if ( nbFoundShells == 2 ) break;
+ if ( nbFoundShells != 1 ) {
+ if ( toCheckAll ) return false;
+ continue;
+ }
+ exp1.Init( exp0.Current(), TopAbs_FACE );
+ int nbEdges = SMESH_MesherHelper::Count( exp1.Current(), TopAbs_EDGE, /*ignoreSame=*/true );
+ bool ok = ( nbEdges > 3 );
+ if ( toCheckAll && !ok ) return false;
+ if ( !toCheckAll && ok ) return true;
}
- if( toCheckAll && !isEmpty) return true;
- return false;
+ return toCheckAll;
};
//=======================================================================
