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 // Created on: 2016-04-19
 // Copyright (c) 2016 OPEN CASCADE SAS
 // Created by: Oleg AGASHIN
 //
 // 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 _BRepMesh_ShapeTool_HeaderFile
 #define _BRepMesh_ShapeTool_HeaderFile
 
 #include <Standard_Transient.hxx>
 #include <IMeshData_Types.hxx>
 #include <Poly_Triangulation.hxx>
 #include <Poly_PolygonOnTriangulation.hxx>
 
 class Geom_Curve;
 class Geom2d_Curve;
 class Poly_Polygon3D;
 class TopoDS_Face;
 class TopoDS_Edge;
 class Bnd_Box;
 
 //! Auxiliary class providing functionality to compute,
 //! retrieve and store data to TopoDS and model shape.
 class BRepMesh_ShapeTool : public Standard_Transient
 {
 public:
 
   //! Returns maximum tolerance of the given face.
   //! Considers tolerances of edges and vertices contained in the given face.
   Standard_EXPORT static Standard_Real MaxFaceTolerance(
     const TopoDS_Face& theFace);
 
   //! Gets the maximum dimension of the given bounding box.
   //! If the given bounding box is void leaves the resulting value unchanged.
   //! @param theBox bounding box to be processed.
   //! @param theMaxDimension maximum dimension of the given box.
   Standard_EXPORT static void BoxMaxDimension(const Bnd_Box& theBox,
                                               Standard_Real& theMaxDimension);
 
   //! Checks same parameter, same range and degenerativity attributes
   //! using geometrical data of the given edge and updates edge model
   //! by computed parameters in case of worst case - it can drop flags
   //! same parameter and same range to False but never to True if it is 
   //! already set to False. In contrary, it can also drop degenerated 
   //! flag to True, but never to False if it is already set to True.
   Standard_EXPORT static void CheckAndUpdateFlags (
     const IMeshData::IEdgeHandle&   theEdge,
     const IMeshData::IPCurveHandle& thePCurve);
 
   //! Stores the given triangulation into the given face.
   //! @param theFace face to be updated by triangulation.
   //! @param theTriangulation triangulation to be stored into the face.
   Standard_EXPORT static void AddInFace(
     const TopoDS_Face&          theFace,
     Handle(Poly_Triangulation)& theTriangulation);
 
   //! Nullifies triangulation stored in the face.
   //! @param theFace face to be updated by null triangulation.
   Standard_EXPORT static void NullifyFace (const TopoDS_Face& theFace);
 
   //! Nullifies polygon on triangulation stored in the edge.
   //! @param theEdge edge to be updated by null polygon.
   //! @param theTriangulation triangulation the given edge is associated to.
   //! @param theLocation face location.
   Standard_EXPORT static void NullifyEdge (
     const TopoDS_Edge&                 theEdge,
     const Handle (Poly_Triangulation)& theTriangulation,
     const TopLoc_Location&             theLocation);
 
   //! Nullifies 3d polygon stored in the edge.
   //! @param theEdge edge to be updated by null polygon.
   //! @param theLocation face location.
   Standard_EXPORT static void NullifyEdge (
     const TopoDS_Edge&     theEdge,
     const TopLoc_Location& theLocation);
 
   //! Updates the given edge by the given tessellated representation.
   //! @param theEdge edge to be updated.
   //! @param thePolygon tessellated representation of the edge to be stored.
   //! @param theTriangulation triangulation the given edge is associated to.
   //! @param theLocation face location.
   Standard_EXPORT static void UpdateEdge (
     const TopoDS_Edge&                          theEdge,
     const Handle (Poly_PolygonOnTriangulation)& thePolygon,
     const Handle (Poly_Triangulation)&          theTriangulation,
     const TopLoc_Location&                      theLocation);
 
   //! Updates the given edge by the given tessellated representation.
   //! @param theEdge edge to be updated.
   //! @param thePolygon tessellated representation of the edge to be stored.
   Standard_EXPORT static void UpdateEdge(
     const TopoDS_Edge&            theEdge,
     const Handle(Poly_Polygon3D)& thePolygon);
 
   //! Updates the given seam edge by the given tessellated representations.
   //! @param theEdge edge to be updated.
   //! @param thePolygon1 tessellated representation corresponding to
   //! forward direction of the seam edge.
   //! @param thePolygon2 tessellated representation corresponding to
   //! reversed direction of the seam edge.
   //! @param theTriangulation triangulation the given edge is associated to.
   //! @param theLocation face location.
   Standard_EXPORT static void UpdateEdge (
     const TopoDS_Edge&                          theEdge,
     const Handle (Poly_PolygonOnTriangulation)& thePolygon1,
     const Handle (Poly_PolygonOnTriangulation)& thePolygon2,
     const Handle (Poly_Triangulation)&          theTriangulation,
     const TopLoc_Location&                      theLocation);
 
   //! Applies location to the given point and return result.
   //! @param thePnt point to be transformed.
   //! @param theLoc location to be applied.
   Standard_EXPORT static gp_Pnt UseLocation (
     const gp_Pnt&          thePnt,
     const TopLoc_Location& theLoc);
 
   //! Gets the strict UV locations of the extremities of the edge using pcurve.
   Standard_EXPORT static Standard_Boolean UVPoints (
     const TopoDS_Edge&      theEdge,
     const TopoDS_Face&      theFace,
     gp_Pnt2d&               theFirstPoint2d,
     gp_Pnt2d&               theLastPoint2d,
     const Standard_Boolean  isConsiderOrientation = Standard_False);
 
   //! Gets the parametric range of the given edge on the given face.
   Standard_EXPORT static Standard_Boolean Range (
     const TopoDS_Edge&      theEdge,
     const TopoDS_Face&      theFace,
     Handle (Geom2d_Curve)&  thePCurve,
     Standard_Real&          theFirstParam,
     Standard_Real&          theLastParam,
     const Standard_Boolean  isConsiderOrientation = Standard_False);
 
   //! Gets the 3d range of the given edge.
   Standard_EXPORT static Standard_Boolean Range (
     const TopoDS_Edge&      theEdge,
     Handle (Geom_Curve)&    theCurve,
     Standard_Real&          theFirstParam,
     Standard_Real&          theLastParam,
     const Standard_Boolean  isConsiderOrientation = Standard_False);
 
   DEFINE_STANDARD_RTTIEXT(BRepMesh_ShapeTool, Standard_Transient)
 };
 
 #endif

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