source: src/LinearAlgebra/Line.hpp@ 99752a

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Last change on this file since 99752a was 56f73b, checked in by Frederik Heber <heber@…>, 15 years ago

Added config.h also to all header files, code check test ascertain this in the future.

  • as we want to use config.h to pass stuff such as MEMDEBUG, NDEBUG, LOG_OBSERVER, we have to make sure that it is present in each and every file.
  • split up CodeChecks/testsuite.at: each test has its own .at file.
  • Property mode set to 100644
File size: 2.6 KB
Line 
1/*
2 * Line.hpp
3 *
4 * Created on: Apr 30, 2010
5 * Author: crueger
6 */
7
8#ifndef LINE_HPP_
9#define LINE_HPP_
10
11// include config.h
12#ifdef HAVE_CONFIG_H
13#include <config.h>
14#endif
15
16
17#include "LinearAlgebra/Space.hpp"
18
19#include <iosfwd>
20#include <memory>
21#include <vector>
22
23class Vector;
24class Plane;
25class LinePoint;
26
27class Line : public Space
28{
29 friend bool operator==(const Line&,const Line&);
30 friend class LinePoint;
31public:
32 Line(const Vector &_origin, const Vector &_direction);
33 Line(const Line& _src);
34 virtual ~Line();
35
36 Line &operator=(const Line& rhs);
37
38 virtual double distance(const Vector &point) const;
39 virtual Vector getClosestPoint(const Vector &point) const;
40
41 Vector getDirection() const;
42 Vector getOrigin() const;
43
44 std::vector<Vector> getPointsOnLine() const;
45
46 Vector getIntersection(const Line& otherLine) const;
47
48 Vector rotateVector(const Vector &rhs, double alpha) const;
49 Line rotateLine(const Line &rhs, double alpha) const;
50 Plane rotatePlane(const Plane &rhs, double alpha) const;
51
52 Plane getOrthogonalPlane(const Vector &origin) const;
53
54 std::vector<Vector> getSphereIntersections() const;
55
56 LinePoint getLinePoint(const Vector&) const;
57 LinePoint posEndpoint() const;
58 LinePoint negEndpoint() const;
59
60
61
62private:
63 std::auto_ptr<Vector> origin;
64 std::auto_ptr<Vector> direction;
65};
66
67bool operator==(const Line&,const Line&);
68
69std::ostream & operator << (std::ostream& ost, const Line &m);
70
71/**
72 * Named constructor to make a line through two points
73 */
74Line makeLineThrough(const Vector &x1, const Vector &x2);
75
76/**
77 * Class for representing points on a line
78 * These objects allow comparison of points on the same line as well as specifying the
79 * infinite "endpoints" of a line.
80 */
81class LinePoint{
82 friend class Line;
83 friend bool operator==(const LinePoint&, const LinePoint&);
84 friend bool operator<(const LinePoint&, const LinePoint&);
85public:
86 LinePoint(const LinePoint&);
87 LinePoint& operator=(const LinePoint&);
88 Vector getPoint() const;
89 Line getLine() const;
90 bool isInfinite() const;
91 bool isPosInfinity() const;
92 bool isNegInfinity() const;
93
94private:
95 LinePoint(const Line&,double);
96 Line line;
97 double param;
98};
99
100bool operator==(const LinePoint&, const LinePoint&);
101bool operator<(const LinePoint&, const LinePoint&);
102
103inline bool operator!= (const LinePoint& x, const LinePoint& y) { return !(x==y); }
104inline bool operator> (const LinePoint& x, const LinePoint& y) { return y<x; }
105inline bool operator<= (const LinePoint& x, const LinePoint& y) { return !(y<x); }
106inline bool operator>= (const LinePoint& x, const LinePoint& y) { return !(x<y); }
107
108
109#endif /* LINE_HPP_ */
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