root/OpenSceneGraph/trunk/include/osg/LineSegment @ 13041

Revision 13041, 3.4 kB (checked in by robert, 2 years ago)

Ran script to remove trailing spaces and tabs

  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date Id Revision
Line 
1/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2004 Robert Osfield
2 *
3 * This library is open source and may be redistributed and/or modified under
4 * the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
5 * (at your option) any later version.  The full license is in LICENSE file
6 * included with this distribution, and on the openscenegraph.org website.
7 *
8 * This library is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
11 * OpenSceneGraph Public License for more details.
12*/
13
14#ifndef OSG_LINESEGMENT
15#define OSG_LINESEGMENT 1
16
17#include <osg/Matrix>
18#include <osg/BoundingBox>
19#include <osg/BoundingSphere>
20
21namespace osg {
22
23/** LineSegment class for representing a line segment. */
24class OSG_EXPORT LineSegment : public Referenced
25{
26    public:
27
28        typedef Vec3d vec_type;
29        typedef vec_type::value_type value_type;
30
31        LineSegment() {};
32        LineSegment(const LineSegment& seg) : Referenced(),_s(seg._s),_e(seg._e) {}
33        LineSegment(const vec_type& s,const vec_type& e) : _s(s),_e(e) {}
34
35        LineSegment& operator = (const LineSegment& seg) { _s = seg._s;  _e = seg._e; return *this; }
36
37        inline void set(const vec_type& s,const vec_type& e) { _s=s; _e=e; }
38
39        inline vec_type& start() { return _s; }
40        inline const vec_type& start() const { return _s; }
41
42        inline vec_type& end() { return _e; }
43        inline const vec_type& end() const { return _e; }
44
45        inline bool valid() const { return _s.valid() && _e.valid() && _s!=_e; }
46
47        /** return true if segment intersects BoundingBox. */
48        bool intersect(const BoundingBox& bb) const;
49
50        /** return true if segment intersects BoundingBox
51          * and return the intersection ratios.
52        */
53        bool intersect(const BoundingBox& bb,float& r1,float& r2) const;
54
55        /** return true if segment intersects BoundingBox
56          * and return the intersection ratios.
57        */
58        bool intersect(const BoundingBox& bb,double& r1,double& r2) const;
59
60        /** return true if segment intersects BoundingSphere. */
61        bool intersect(const BoundingSphere& bs) const;
62
63        /** return true if segment intersects BoundingSphere and return the
64          * intersection ratio.
65        */
66        bool intersect(const BoundingSphere& bs,float& r1,float& r2) const;
67
68        /** return true if segment intersects BoundingSphere and return the
69          * intersection ratio.
70        */
71        bool intersect(const BoundingSphere& bs,double& r1,double& r2) const;
72
73        /** return true if segment intersects triangle
74          * and set ratio long segment.
75        */
76        bool intersect(const Vec3f& v1,const Vec3f& v2,const Vec3f& v3,float& r);
77
78        /** return true if segment intersects triangle
79          * and set ratio long segment.
80        */
81        bool intersect(const Vec3d& v1,const Vec3d& v2,const Vec3d& v3,double& r);
82
83
84        /** post multiply a segment by matrix.*/
85        inline void mult(const LineSegment& seg,const Matrix& m) { _s = seg._s*m; _e = seg._e*m; }
86        /** pre multiply a segment by matrix.*/
87        inline void mult(const Matrix& m,const LineSegment& seg) { _s = m*seg._s; _e = m*seg._e; }
88
89    protected:
90
91        virtual ~LineSegment();
92
93        static bool intersectAndClip(vec_type& s,vec_type& e,const BoundingBox& bb);
94
95        vec_type _s;
96        vec_type _e;
97};
98
99}
100
101#endif
Note: See TracBrowser for help on using the browser.