include/opencascade/IntPatch_PolyhedronTool.hxx

0001 // Created on: 1993-05-06
0002 // Created by: Jacques GOUSSARD
0003 // Copyright (c) 1993-1999 Matra Datavision
0004 // Copyright (c) 1999-2014 OPEN CASCADE SAS
0005 //
0006 // This file is part of Open CASCADE Technology software library.
0007 //
0008 // This library is free software; you can redistribute it and/or modify it under
0009 // the terms of the GNU Lesser General Public License version 2.1 as published
0010 // by the Free Software Foundation, with special exception defined in the file
0011 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
0012 // distribution for complete text of the license and disclaimer of any warranty.
0013 //
0014 // Alternatively, this file may be used under the terms of Open CASCADE
0015 // commercial license or contractual agreement.
0016
0017 #ifndef _IntPatch_PolyhedronTool_HeaderFile
0018 #define _IntPatch_PolyhedronTool_HeaderFile
0019
0020 #include <Standard.hxx>
0021 #include <Standard_DefineAlloc.hxx>
0022 #include <Standard_Handle.hxx>
0023
0024 #include <Bnd_Box.hxx>
0025 #include <NCollection_Array1.hxx>
0026 #include <NCollection_HArray1.hxx>
0027 #include <Standard_Integer.hxx>
0028 class Standard_OutOfRange;
0029 class Bnd_Box;
0030 class IntPatch_Polyhedron;
0031 class gp_Pnt;
0032
0033 //! Describe the signature of a polyhedral surface with
0034 //! only triangular facets and the necessary information
0035 //! to compute the interferences.
0036 class IntPatch_PolyhedronTool
0037 {
0038 public:
0039   DEFINE_STANDARD_ALLOC
0040
0041   //! Give the bounding box of the Polyhedron.
0042   static const Bnd_Box& Bounding(const IntPatch_Polyhedron& thePolyh);
0043
0044   //! Give the array of boxes. The box <n> corresponding
0045   //! to the triangle <n>.
0046   static const occ::handle<NCollection_HArray1<Bnd_Box>>& ComponentsBounding(
0047     const IntPatch_Polyhedron& thePolyh);
0048
0049   //! Give the tolerance of the polygon.
0050   static double DeflectionOverEstimation(const IntPatch_Polyhedron& thePolyh);
0051
0052   //! Give the number of triangles in this polyhedral surface.
0053   static int NbTriangles(const IntPatch_Polyhedron& thePolyh);
0054
0055   //! Give the indices of the 3 points of the triangle of
0056   //! address Index in the Polyhedron.
0057   static void Triangle(const IntPatch_Polyhedron& thePolyh,
0058                        const int                  Index,
0059                        int&                       P1,
0060                        int&                       P2,
0061                        int&                       P3);
0062
0063   //! Give the point of index i in the polyhedral surface.
0064   static const gp_Pnt& Point(const IntPatch_Polyhedron& thePolyh, const int Index);
0065
0066   //! Gives the address Tricon of the triangle connexe to
0067   //! the triangle of address Triang by the edge Pivot Pedge
0068   //! and the third point of this connexe triangle. When we
0069   //! are on a free edge TriCon==0 but the function return
0070   //! the value of the triangle in the other side of Pivot
0071   //! on the free edge. Used to turn around a vertex.
0072   static int TriConnex(const IntPatch_Polyhedron& thePolyh,
0073                        const int                  Triang,
0074                        const int                  Pivot,
0075                        const int                  Pedge,
0076                        int&                       TriCon,
0077                        int&                       OtherP);
0078 };
0079
0080 #include <IntPatch_PolyhedronTool.lxx>
0081
0082 #endif // _IntPatch_PolyhedronTool_HeaderFile