src/BRepMesh/BRepMesh_EdgeTessellator.hxx

   1 // Created on: 2014-08-13
   2 // Created by: Oleg AGASHIN
   3 // Copyright (c) 2011-2014 OPEN CASCADE SAS
   4 //
   5 // This file is part of Open CASCADE Technology software library.
   6 //
   7 // This library is free software; you can redistribute it and/or modify it under
   8 // the terms of the GNU Lesser General Public License version 2.1 as published
   9 // by the Free Software Foundation, with special exception defined in the file
  10 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
  11 // distribution for complete text of the license and disclaimer of any warranty.
  12 //
  13 // Alternatively, this file may be used under the terms of Open CASCADE
  14 // commercial license or contractual agreement.
  15
  16 #ifndef _BRepMesh_EdgeTessellator_HeaderFile
  17 #define _BRepMesh_EdgeTessellator_HeaderFile
  18
  19 #include <Standard.hxx>
  20 #include <Standard_DefineAlloc.hxx>
  21 #include <BRepMesh.hxx>
  22 #include <BRepMesh_IEdgeTool.hxx>
  23 #include <BRepMesh_GeomTool.hxx>
  24 #include <BRepMesh_FaceAttribute.hxx>
  25 #include <Handle_Geom_Surface.hxx>
  26 #include <Handle_Geom2d_Curve.hxx>
  27 #include <Handle_BRepAdaptor_HSurface.hxx>
  28 #include <BRepAdaptor_Curve.hxx>
  29
  30 class Geom_Surface;
  31 class Geom2d_Curve;
  32 class TopoDS_Edge;
  33 class BRepAdaptor_HSurface;
  34 class TopTools_IndexedDataMapOfShapeListOfShape;
  35
  36 //! Auxiliary class implements functionality producing tessellated
  37 //! representation of an edge based on edge geometry.
  38 class BRepMesh_EdgeTessellator : public BRepMesh_IEdgeTool
  39 {
  40 public:
  41
  42   //! Constructor.
  43   //! Automatically performs tessellation of the edge according to the
  44   //! given parameters.
  45   BRepMesh_EdgeTessellator(
  46     const TopoDS_Edge&                               theEdge,
  47     const Handle(BRepMesh_FaceAttribute)&            theFaceAttribute,
  48     const TopTools_IndexedDataMapOfShapeListOfShape& theMapOfSharedFaces,
  49     const Standard_Real                              theLinDeflection,
  50     const Standard_Real                              theAngDeflection);
  51
  52   //! Returns number of dicretization points.
  53   virtual Standard_Integer NbPoints() const
  54   {
  55     return myTool->NbPoints();
  56   }
  57
  58   //! Returns parameters of solution with the given index.
  59   //! @param theIndex index of tessellation point.
  60   //! @param theParameter parameters on PCurve corresponded to the solution.
  61   //! @param thePoint tessellation point.
  62   //! @param theUV coordinates of tessellation point in parametric space of face.
  63   virtual void Value(const Standard_Integer theIndex,
  64                      Standard_Real&         theParameter,
  65                      gp_Pnt&                thePoint,
  66                      gp_Pnt2d&              theUV);
  67
  68   DEFINE_STANDARD_RTTI(BRepMesh_EdgeTessellator)
  69
  70 private:
  71
  72   //!
  73   void splitSegment(const Handle(Geom_Surface)& theSurf,
  74                     const Handle(Geom2d_Curve)& theCurve2d,
  75                     const Standard_Real         theFirst,
  76                     const Standard_Real         theLast,
  77                     const Standard_Integer      theNbIter);
  78
  79 private:
  80   NCollection_Handle<BRepMesh_GeomTool> myTool;
  81   Handle(BRepAdaptor_HSurface)          mySurface;
  82   BRepAdaptor_Curve                     myCOnS;
  83   Standard_Real                         mySquareEdgeDef;
  84 };
  85
  86 DEFINE_STANDARD_HANDLE(BRepMesh_EdgeTessellator, BRepMesh_IEdgeTool)
  87
  88 #endif