0031047: Modeling Algorithms - BRepExtrema_DistShapeShape gives wrong result
[occt.git] / src / BRepClass / BRepClass_FaceExplorer.hxx
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42cf5bc1 1// Created on: 1992-11-19
2// Created by: Remi LEQUETTE
3// Copyright (c) 1992-1999 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 _BRepClass_FaceExplorer_HeaderFile
18#define _BRepClass_FaceExplorer_HeaderFile
19
20#include <Standard.hxx>
21#include <Standard_DefineAlloc.hxx>
22#include <Standard_Handle.hxx>
cb7f9239 23#include <TopTools_IndexedDataMapOfShapeListOfShape.hxx>
42cf5bc1 24
cb7f9239 25#include <TopAbs_Orientation.hxx>
42cf5bc1 26#include <TopoDS_Face.hxx>
27#include <TopExp_Explorer.hxx>
28#include <Standard_Integer.hxx>
29#include <Standard_Real.hxx>
30#include <Standard_Boolean.hxx>
42cf5bc1 31class gp_Pnt2d;
32class gp_Lin2d;
33class BRepClass_Edge;
34
35
36//! Provide an exploration of a BRep Face for the
37//! classification. Return UV edges.
38class BRepClass_FaceExplorer
39{
40public:
41
42 DEFINE_STANDARD_ALLOC
43
44
45 Standard_EXPORT BRepClass_FaceExplorer(const TopoDS_Face& F);
a148c938 46
47 //! Checks the point and change its coords if it is located too far
48 //! from the bounding box of the face. New Coordinates of the point
49 //! will be on the line between the point and the center of the
50 //! bounding box. Returns True if point was not changed.
51 Standard_EXPORT Standard_Boolean CheckPoint (gp_Pnt2d& thePoint);
42cf5bc1 52
53 //! Should return True if the point is outside a
54 //! bounding volume of the face.
55 Standard_EXPORT Standard_Boolean Reject (const gp_Pnt2d& P) const;
56
57 //! Returns in <L>, <Par> a segment having at least
58 //! one intersection with the face boundary to
59 //! compute intersections.
60 Standard_EXPORT Standard_Boolean Segment (const gp_Pnt2d& P, gp_Lin2d& L, Standard_Real& Par);
61
62 //! Returns in <L>, <Par> a segment having at least
63 //! one intersection with the face boundary to
64 //! compute intersections. Each call gives another segment.
65 Standard_EXPORT Standard_Boolean OtherSegment (const gp_Pnt2d& P, gp_Lin2d& L, Standard_Real& Par);
66
67 //! Starts an exploration of the wires.
68 Standard_EXPORT void InitWires();
69
70 //! Returns True if there is a current wire.
71 Standard_Boolean MoreWires() const;
72
73 //! Sets the explorer to the next wire.
74 void NextWire();
75
76 //! Returns True if the wire bounding volume does not
77 //! intersect the segment.
78 Standard_EXPORT Standard_Boolean RejectWire (const gp_Lin2d& L, const Standard_Real Par) const;
79
80 //! Starts an exploration of the edges of the current
81 //! wire.
82 Standard_EXPORT void InitEdges();
83
84 //! Returns True if there is a current edge.
85 Standard_Boolean MoreEdges() const;
86
87 //! Sets the explorer to the next edge.
88 void NextEdge();
89
90 //! Returns True if the edge bounding volume does not
91 //! intersect the segment.
92 Standard_EXPORT Standard_Boolean RejectEdge (const gp_Lin2d& L, const Standard_Real Par) const;
93
94 //! Current edge in current wire and its orientation.
95 Standard_EXPORT void CurrentEdge (BRepClass_Edge& E, TopAbs_Orientation& Or) const;
96
97
98
99
100protected:
101
47cd8af2 102 //! Computes UV bounds of a face
103 Standard_EXPORT void ComputeFaceBounds();
42cf5bc1 104
105
106private:
107
108
109
110 TopoDS_Face myFace;
111 TopExp_Explorer myWExplorer;
112 TopExp_Explorer myEExplorer;
113 Standard_Integer myCurEdgeInd;
114 Standard_Real myCurEdgePar;
cb7f9239 115 TopTools_IndexedDataMapOfShapeListOfShape myMapVE;
42cf5bc1 116
47cd8af2 117 Standard_Real myUMin;
118 Standard_Real myUMax;
119 Standard_Real myVMin;
120 Standard_Real myVMax;
42cf5bc1 121};
122
123
124#include <BRepClass_FaceExplorer.lxx>
125
126
127
128
129
130#endif // _BRepClass_FaceExplorer_HeaderFile