1 // Created on: 1994-03-10
2 // Created by: Laurent BUCHARD
3 // Copyright (c) 1994-1999 Matra Datavision
4 // Copyright (c) 1999-2014 OPEN CASCADE SAS
6 // This file is part of Open CASCADE Technology software library.
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.
14 // Alternatively, this file may be used under the terms of Open CASCADE
15 // commercial license or contractual agreement.
17 #ifndef _BRepClass3d_SolidExplorer_HeaderFile
18 #define _BRepClass3d_SolidExplorer_HeaderFile
20 #include <Standard.hxx>
21 #include <Standard_DefineAlloc.hxx>
22 #include <Standard_Handle.hxx>
24 #include <Bnd_Box.hxx>
25 #include <TopoDS_Shape.hxx>
26 #include <Standard_Boolean.hxx>
27 #include <Standard_Integer.hxx>
28 #include <Standard_Real.hxx>
29 #include <TopExp_Explorer.hxx>
30 #include <BRepClass3d_MapOfInter.hxx>
31 #include <TopAbs_State.hxx>
36 class BRepAdaptor_HSurface;
40 class IntCurvesFace_Intersector;
43 //! Provide an exploration of a BRep Shape for the
45 class BRepClass3d_SolidExplorer
52 Standard_EXPORT BRepClass3d_SolidExplorer();
55 Standard_EXPORT BRepClass3d_SolidExplorer(const BRepClass3d_SolidExplorer& Oth);
57 Standard_EXPORT BRepClass3d_SolidExplorer(const TopoDS_Shape& S);
59 Standard_EXPORT virtual ~BRepClass3d_SolidExplorer();
61 Standard_EXPORT void InitShape (const TopoDS_Shape& S);
63 //! Should return True if P outside of bounding vol. of the shape
64 Standard_EXPORT virtual Standard_Boolean Reject (const gp_Pnt& P) const;
66 //! compute a point P in the face F. Param is a Real in
67 //! ]0,1[ and is used to initialise the algorithm. For
68 //! different values , different points are returned.
69 Standard_EXPORT static Standard_Boolean FindAPointInTheFace (const TopoDS_Face& F, gp_Pnt& P, Standard_Real& Param);
71 Standard_EXPORT static Standard_Boolean FindAPointInTheFace (const TopoDS_Face& F, gp_Pnt& P, Standard_Real& u, Standard_Real& v, Standard_Real& Param);
73 Standard_EXPORT static Standard_Boolean FindAPointInTheFace (const TopoDS_Face& F, gp_Pnt& P, Standard_Real& u, Standard_Real& v, Standard_Real& Param, gp_Vec& theVecD1U, gp_Vec& theVecD1V);
75 Standard_EXPORT static Standard_Boolean FindAPointInTheFace (const TopoDS_Face& F, gp_Pnt& P, Standard_Real& u, Standard_Real& v);
77 Standard_EXPORT static Standard_Boolean FindAPointInTheFace (const TopoDS_Face& F, gp_Pnt& P);
79 Standard_EXPORT static Standard_Boolean FindAPointInTheFace (const TopoDS_Face& F, Standard_Real& u, Standard_Real& v);
81 Standard_EXPORT Standard_Boolean PointInTheFace (const TopoDS_Face& F, gp_Pnt& P, Standard_Real& u, Standard_Real& v, Standard_Real& Param, Standard_Integer& Index) const;
83 Standard_EXPORT Standard_Boolean PointInTheFace (const TopoDS_Face& F, gp_Pnt& P, Standard_Real& u, Standard_Real& v, Standard_Real& Param, Standard_Integer& Index, const Handle(BRepAdaptor_HSurface)& surf, const Standard_Real u1, const Standard_Real v1, const Standard_Real u2, const Standard_Real v2) const;
85 //! <Index> gives point index to search from and returns
86 //! point index of succeseful search
87 Standard_EXPORT Standard_Boolean PointInTheFace (const TopoDS_Face& F, gp_Pnt& P, Standard_Real& u, Standard_Real& v, Standard_Real& Param, Standard_Integer& Index, const Handle(BRepAdaptor_HSurface)& surf, const Standard_Real u1, const Standard_Real v1, const Standard_Real u2, const Standard_Real v2, gp_Vec& theVecD1U, gp_Vec& theVecD1V) const;
89 //! Starts an exploration of the shells.
90 Standard_EXPORT void InitShell();
92 //! Returns True if there is a current shell.
93 Standard_EXPORT Standard_Boolean MoreShell() const;
95 //! Sets the explorer to the next shell.
96 Standard_EXPORT void NextShell();
98 //! Returns the current shell.
99 Standard_EXPORT TopoDS_Shell CurrentShell() const;
101 //! Returns True if the Shell is rejected.
102 Standard_EXPORT virtual Standard_Boolean RejectShell (const gp_Lin& L) const;
104 //! Starts an exploration of the faces of the current shell.
105 Standard_EXPORT void InitFace();
107 //! Returns True if current face in current shell.
108 Standard_EXPORT Standard_Boolean MoreFace() const;
110 //! Sets the explorer to the next Face of the current shell.
111 Standard_EXPORT void NextFace();
113 //! Returns the current face.
114 Standard_EXPORT TopoDS_Face CurrentFace() const;
116 //! returns True if the face is rejected.
117 Standard_EXPORT virtual Standard_Boolean RejectFace (const gp_Lin& L) const;
119 //! Returns in <L>, <Par> a segment having at least
120 //! one intersection with the shape boundary to
121 //! compute intersections.
122 Standard_EXPORT Standard_Integer Segment (const gp_Pnt& P, gp_Lin& L, Standard_Real& Par);
124 //! Returns in <L>, <Par> a segment having at least
125 //! one intersection with the shape boundary to
126 //! compute intersections.
128 //! The First Call to this method returns a line which
129 //! point to a point of the first face of the shape.
130 //! The Second Call provide a line to the second face
132 Standard_EXPORT Standard_Integer OtherSegment (const gp_Pnt& P, gp_Lin& L, Standard_Real& Par);
134 //! Returns the index of face for which
135 //! last segment is calculated.
136 Standard_EXPORT Standard_Integer GetFaceSegmentIndex() const;
138 Standard_EXPORT virtual void DumpSegment (const gp_Pnt& P, const gp_Lin& L, const Standard_Real Par, const TopAbs_State S) const;
140 Standard_EXPORT const Bnd_Box& Box() const;
142 Standard_EXPORT IntCurvesFace_Intersector& Intersector (const TopoDS_Face& F) const;
144 Standard_EXPORT void Destroy();
160 TopoDS_Shape myShape;
161 Standard_Boolean myReject;
162 Standard_Integer myFirstFace;
163 Standard_Real myParamOnEdge;
164 TopExp_Explorer myShellExplorer;
165 TopExp_Explorer myFaceExplorer;
166 BRepClass3d_MapOfInter myMapOfInter;
177 #endif // _BRepClass3d_SolidExplorer_HeaderFile