-// Copyright (C) 2007-2013 CEA/DEN, EDF R&D, OPEN CASCADE
+// Copyright (C) 2007-2014 CEA/DEN, EDF R&D, OPEN CASCADE
//
// Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
// CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
-// version 2.1 of the License.
+// version 2.1 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
return true;
}
+//================================================================================
+/*!
+ * \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_Quadrangle_2D::IsApplicable( const TopoDS_Shape & aShape, bool toCheckAll )
+{
+ int nbFoundFaces = 0;
+ for (TopExp_Explorer exp( aShape, TopAbs_FACE ); exp.More(); exp.Next(), ++nbFoundFaces )
+ {
+ TopoDS_Face aFace = TopoDS::Face(exp.Current());
+ if ( aFace.Orientation() >= TopAbs_INTERNAL ) aFace.Orientation( TopAbs_FORWARD );
+
+ list< TopoDS_Edge > aWire;
+ list< int > nbEdgesInWire;
+ int nbWire = SMESH_Block::GetOrderedEdges (aFace, aWire, nbEdgesInWire);
+ if ( nbWire != 1 ) {
+ if ( toCheckAll ) return false;
+ continue;
+ }
+
+ int nbNoDegenEdges = 0;
+ list<TopoDS_Edge>::iterator edge = aWire.begin();
+ for ( ; edge != aWire.end(); ++edge ) {
+ if ( !SMESH_Algo::isDegenerated( *edge ))
+ ++nbNoDegenEdges;
+ }
+ if ( toCheckAll && nbNoDegenEdges < 3 ) return false;
+ if ( !toCheckAll && nbNoDegenEdges >= 3 ) return true;
+ }
+ return ( toCheckAll && nbFoundFaces != 0 );
+}
//================================================================================
/*!