0025936: Modeling Data - reusable data structure for 2D tesselation (3- and 4-nodal...

// Poly_Quad.hxx is added instead of Poly_Element.hxx

diff --git a/src/Poly/Poly_Quad.hxx b/src/Poly/Poly_Quad.hxx
new file mode 100644 (file)
index 0000000..644fcfd
--- /dev/null
+++ b/src/Poly/Poly_Quad.hxx
@@ -0,0 +1,73 @@
+// Copyright (c) 2015 OPEN CASCADE SAS
+//
+// This file is part of Open CASCADE Technology software library.
+//
+// This library is free software; you can redistribute it and/or modify it under
+// the terms of the GNU Lesser General Public License version 2.1 as published
+// by the Free Software Foundation, with special exception defined in the file
+// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
+// distribution for complete text of the license and disclaimer of any warranty.
+//
+// Alternatively, this file may be used under the terms of Open CASCADE
+// commercial license or contractual agreement.
+
+#ifndef _Poly_Quad_HeaderFile
+#define _Poly_Quad_HeaderFile
+
+#include <Standard_DefineAlloc.hxx>
+#include <Standard_Integer.hxx>
+#include <Poly_Triangle.hxx>
+
+//! Describes a quadric element of a mesh.
+class Poly_Quad : public Poly_Triangle
+{
+
+public:
+
+  DEFINE_STANDARD_ALLOC
+
+  //! Constructs an empty Quad object.
+  Poly_Quad():myNode4 (0) {
+    myNodes[0] = myNodes[1] = myNodes[2] = 0;
+  }
+
+  //! Constructs a quadric element.
+  Poly_Quad (const Standard_Integer theNode1,
+             const Standard_Integer theNode2,
+             const Standard_Integer theNode3,
+             const Standard_Integer theNode4)
+  {
+    Set (theNode1, theNode2, theNode3, theNode4);
+  }
+
+  //! Sets indices of nodes.
+  void Set (const Standard_Integer theNode1,
+            const Standard_Integer theNode2,
+            const Standard_Integer theNode3,
+            const Standard_Integer theNode4)
+  {
+    myNodes[0] = theNode1;
+    myNodes[1] = theNode2;
+    myNodes[2] = theNode3;
+    myNode4 = theNode4;
+  }
+
+  //! Returns indices of nodes of the quadric element.
+  void Get (Standard_Integer& theNode1,
+            Standard_Integer& theNode2,
+            Standard_Integer& theNode3,
+            Standard_Integer& theNode4) const
+  {
+    theNode1 = myNodes[0];
+    theNode2 = myNodes[1];
+    theNode3 = myNodes[2];
+    theNode4 = myNode4;
+  }
+
+protected:
+
+  Standard_Integer myNode4;
+
+};
+
+#endif // _Poly_Quad_HeaderFile