1 // Created on: 1993-01-27
2 // Created by: Jean-Louis Frenkel
3 // Copyright (c) 1993-1999 Matra Datavision
4 // Copyright (c) 1999-2014 OPEN CASCADE SAS
5 //
6 // This file is part of Open CASCADE Technology software library.
7 //
8 // This library is free software; you can redistribute it and/or modify it under
9 // the terms of the GNU Lesser General Public License version 2.1 as published
10 // by the Free Software Foundation, with special exception defined in the file
11 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
12 // distribution for complete text of the license and disclaimer of any warranty.
13 //
14 // Alternatively, this file may be used under the terms of Open CASCADE
15 // commercial license or contractual agreement.
16 
17 #ifndef _Prs3d_ShapeTool_HeaderFile
18 #define _Prs3d_ShapeTool_HeaderFile
19 
20 #include <Standard_DefineAlloc.hxx>
21 #include <TopoDS.hxx>
22 #include <TopoDS_Face.hxx>
23 #include <TopoDS_Shape.hxx>
24 #include <TopExp_Explorer.hxx>
25 #include <TopTools_IndexedDataMapOfShapeListOfShape.hxx>
26 #include <TopTools_IndexedMapOfShape.hxx>
27 #include <TopTools_HSequenceOfShape.hxx>
28 
29 class Bnd_Box;
30 class TopoDS_Edge;
31 class TopoDS_Vertex;
32 class Poly_Triangulation;
33 class Poly_PolygonOnTriangulation;
34 class Poly_Polygon3D;
35 
36 //! describes the behaviour requested for a wireframe
37 //! shape presentation.
38 class Prs3d_ShapeTool
39 {
40 public:
41   DEFINE_STANDARD_ALLOC
42 
43   //! Constructs the tool and initializes it using theShape and theAllVertices
44   //! (optional) arguments. By default, only isolated and internal vertices are considered,
45   //! however if theAllVertices argument is equal to True, all shape's vertices are taken into account.
46   Standard_EXPORT Prs3d_ShapeTool(const TopoDS_Shape& theShape, const Standard_Boolean theAllVertices = Standard_False);
47 
48   Standard_EXPORT void InitFace();
49 
50   Standard_EXPORT Standard_Boolean MoreFace() const;
51 
52   Standard_EXPORT void NextFace();
53 
54   Standard_EXPORT const TopoDS_Face& GetFace() const;
55 
56   Standard_EXPORT Bnd_Box FaceBound() const;
57 
IsPlanarFace() const58   Standard_Boolean IsPlanarFace() const
59   {
60     const TopoDS_Face& aFace = TopoDS::Face (myFaceExplorer.Current());
61     return IsPlanarFace (aFace);
62   }
63 
64   Standard_EXPORT void InitCurve();
65 
66   Standard_EXPORT Standard_Boolean MoreCurve() const;
67 
68   Standard_EXPORT void NextCurve();
69 
70   Standard_EXPORT const TopoDS_Edge& GetCurve() const;
71 
72   Standard_EXPORT Bnd_Box CurveBound() const;
73 
74   Standard_EXPORT Standard_Integer Neighbours() const;
75 
76   Standard_EXPORT Handle(TopTools_HSequenceOfShape) FacesOfEdge() const;
77 
78   Standard_EXPORT void InitVertex();
79 
80   Standard_EXPORT Standard_Boolean MoreVertex() const;
81 
82   Standard_EXPORT void NextVertex();
83 
84   Standard_EXPORT const TopoDS_Vertex& GetVertex() const;
85 
86   Standard_EXPORT Standard_Boolean HasSurface() const;
87 
88   Standard_EXPORT Handle(Poly_Triangulation) CurrentTriangulation (TopLoc_Location& l) const;
89 
90   Standard_EXPORT Standard_Boolean HasCurve() const;
91 
92   Standard_EXPORT void PolygonOnTriangulation (Handle(Poly_PolygonOnTriangulation)& Indices, Handle(Poly_Triangulation)& T, TopLoc_Location& l) const;
93 
94   Standard_EXPORT Handle(Poly_Polygon3D) Polygon3D (TopLoc_Location& l) const;
95 
96 public:
97 
98   Standard_EXPORT static Standard_Boolean IsPlanarFace (const TopoDS_Face& theFace);
99 
100 private:
101 
102   TopoDS_Shape myShape;
103   TopExp_Explorer myFaceExplorer;
104   TopTools_IndexedDataMapOfShapeListOfShape myEdgeMap;
105   TopTools_IndexedMapOfShape myVertexMap;
106   Standard_Integer myEdge;
107   Standard_Integer myVertex;
108 
109 };
110 
111 #endif // _Prs3d_ShapeTool_HeaderFile
112