0022048: Visualization, AIS_InteractiveContext - single object selection should alway...
[occt.git] / src / TopClass / TopClass_SolidExplorer.hxx
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42cf5bc1 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
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 _TopClass_SolidExplorer_HeaderFile
18#define _TopClass_SolidExplorer_HeaderFile
19
20#include <Standard.hxx>
21#include <Standard_DefineAlloc.hxx>
22#include <Standard_Handle.hxx>
23
24#include <Standard_Boolean.hxx>
25#include <Standard_Real.hxx>
26class gp_Pnt;
27class gp_Lin;
28class TopoDS_Face;
29
30
31//! Provide an exploration of a BRep Shape for the
32//! classification. Defines the description of a solid for the
33//! SolidClassifier.
34class TopClass_SolidExplorer
35{
36public:
37
38 DEFINE_STANDARD_ALLOC
39
40
41 //! Should return True if the point is outside a
42 //! bounding volume of the shape.
43 Standard_EXPORT virtual Standard_Boolean Reject (const gp_Pnt& P) const = 0;
44
45 //! Returns in <L>, <Par> a segment having at least
46 //! one intersection with the shape boundary to
47 //! compute intersections.
48 Standard_EXPORT virtual void Segment (const gp_Pnt& P, gp_Lin& L, Standard_Real& Par) = 0;
49
50 //! Returns in <L>, <Par> a segment having at least
51 //! one intersection with the shape boundary to
52 //! compute intersections.
53 //!
54 //! The First Call to this method returns a line which
55 //! point to a point of the first face of the shape.
56 //! The Second Call provide a line to the second face
57 //! and so on.
58 //!
59 //! if the method is called N times on a shape with F
60 //! faces (N>F) the line point to other points on the
61 //! face 1,2,3 ... N
62 Standard_EXPORT virtual void OtherSegment (const gp_Pnt& P, gp_Lin& L, Standard_Real& Par) = 0;
63
64 //! Starts an exploration of the shells.
65 Standard_EXPORT virtual void InitShell() = 0;
66
67 //! Returns True if there is a current shell.
68 Standard_EXPORT virtual Standard_Boolean MoreShells() const = 0;
69
70 //! Sets the explorer to the next shell and returns
71 //! False if there are no more wires.
72 Standard_EXPORT virtual void NextShell() = 0;
73
74 //! Returns True if the shell bounding volume does not
75 //! intersect the segment.
76 Standard_EXPORT virtual Standard_Boolean RejectShell (const gp_Lin& L, const Standard_Real Par) const = 0;
77
78 //! Starts an exploration of the faces.
79 Standard_EXPORT virtual void InitFace() = 0;
80
81 //! Returns True if there is a current face.
82 Standard_EXPORT virtual Standard_Boolean MoreFaces() const = 0;
83
84 //! Sets the explorer to the next face and returns
85 //! False if there are no more wires.
86 Standard_EXPORT virtual void NextFace() = 0;
87
88 //! Returns the current face.
89 Standard_EXPORT virtual TopoDS_Face CurrentFace() const = 0;
90
91 //! Returns True if the face bounding volume does not
92 //! intersect the segment.
93 Standard_EXPORT virtual Standard_Boolean RejectFace (const gp_Lin& L, const Standard_Real Par) const = 0;
94
95
96
97
98protected:
99
100
101
102
103
104private:
105
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108
109
110};
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117
118#endif // _TopClass_SolidExplorer_HeaderFile