0021858: Visualization hangs on attached face

[occt.git] / src / BRepMesh / BRepMesh_VertexInspector.cxx

diff --git a/src/BRepMesh/BRepMesh_VertexInspector.cxx b/src/BRepMesh/BRepMesh_VertexInspector.cxx
new file mode 100644 (file)
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+++ b/src/BRepMesh/BRepMesh_VertexInspector.cxx
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+// File:        BRepMesh_VertexInspector.cxx
+// Created:     Jun 1 18:32:12 2011
+// Author:      Oleg AGASHIN
+// Copyright:   Open CASCADE SAS 2011
+
+#include <gp_XY.hxx>
+#include <Precision.hxx>
+#include <BRepMesh_VertexInspector.hxx>
+#include <BRepMesh_Vertex.hxx>
+
+
+//=======================================================================
+//function : BRepMesh_VertexInspector
+//purpose  : Constructor
+//
+//=======================================================================
+
+BRepMesh_VertexInspector::BRepMesh_VertexInspector (const Standard_Integer nbComp,
+                                                    const BRepMesh_BaseAllocator& theAlloc)
+                                                    : myTol(0,1),
+                                                    myResInd(theAlloc),
+                                                    myVertices(nbComp),
+                                                    myDelNodes(theAlloc)
+{
+  SetTolerance( Precision::Confusion() );
+}
+
+BRepMesh_VertexInspector::BRepMesh_VertexInspector (const Standard_Integer nbComp,
+                                                    const Standard_Real    aTol,
+                                                    const BRepMesh_BaseAllocator& theAlloc)
+                                                    : myTol(0,1),
+                                                    myResInd(theAlloc),
+                                                    myVertices(nbComp),
+                                                    myDelNodes(theAlloc)
+{
+  SetTolerance( aTol );
+}
+
+BRepMesh_VertexInspector::BRepMesh_VertexInspector (const Standard_Integer nbComp,
+                                                    const Standard_Real    aTolX,
+                                                    const Standard_Real    aTolY,
+                                                    const BRepMesh_BaseAllocator& theAlloc)
+                                                    : myTol(0,1),
+                                                    myResInd(theAlloc),
+                                                    myVertices(nbComp),
+                                                    myDelNodes(theAlloc)
+{
+  SetTolerance( aTolX, aTolY );
+}
+
+//=======================================================================
+//function : Inspect
+//purpose  : 
+//
+//=======================================================================
+NCollection_CellFilter_Action BRepMesh_VertexInspector::Inspect (const Standard_Integer theTarget)
+{
+  const BRepMesh_Vertex& aVertex = myVertices(theTarget-1);
+  if( aVertex.Movability() == BRepMesh_Deleted )
+  {
+    myDelNodes.Append(theTarget);
+    return CellFilter_Purge;
+  }
+  
+  const gp_XY& aPos = aVertex.Coord();
+  Standard_Real dx,dy;
+  dx = myCurrent.X() - aPos.X();
+  dy = myCurrent.Y() - aPos.Y();
+  
+  Standard_Boolean inTol;
+  if ( myTol(1) == 0. )
+  {
+    inTol = (dx*dx + dy*dy) <= myTol(0);
+  }
+  else
+  {
+    inTol = ( (dx*dx) <= myTol(0) ) && 
+            ( (dy*dy) <= myTol(1) );
+  }
+  if ( inTol )
+    myResInd.Append(theTarget);
+  return CellFilter_Keep;
+}
+
+//=======================================================================
+//function : Add
+//purpose  : 
+//
+//=======================================================================
+Standard_Integer BRepMesh_VertexInspector::Add(const BRepMesh_Vertex& theVertex)
+{
+  if( myDelNodes.IsEmpty() )
+  {
+    myVertices.Append(theVertex);
+    return myVertices.Length();
+  }
+  
+  Standard_Integer aNodeIndex = myDelNodes.First();
+  myVertices(aNodeIndex-1) = theVertex;
+  myDelNodes.RemoveFirst();
+  return aNodeIndex;
+}