source: src/vector.hpp@ 4ef9b7

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Last change on this file since 4ef9b7 was 8e17d6, checked in by Tillmann Crueger <crueger@…>, 14 years ago

Added VectorContent types that allow making vectors from views
  • Property mode set to 100755
File size: 3.3 KB
Line 
1#ifndef VECTOR_HPP_
2#define VECTOR_HPP_
3
4using namespace std;
5
6/*********************************************** includes ***********************************/
7
8// include config.h
9#ifdef HAVE_CONFIG_H
10#include <config.h>
11#endif
12
13#include <iosfwd>
14
15#include <memory>
16#include <vector>
17
18#include "defs.hpp"
19#include "Space.hpp"
20
21/********************************************** declarations *******************************/
22
23class Vector;
24class Matrix;
25struct VectorContent;
26
27typedef std::vector<Vector> pointset;
28
29/** Single vector.
30 * basically, just a x[3] but with helpful functions
31 */
32class Vector : public Space{
33 friend Vector operator*(const Matrix&,const Vector&);
34 friend class Matrix;
35public:
36 Vector();
37 Vector(const double x1, const double x2, const double x3);
38 Vector(const Vector& src);
39 virtual ~Vector();
40
41 // Method implemented by forwarding to the Representation
42
43 double DistanceSquared(const Vector &y) const;
44 double DistanceToSpace(const Space& space) const;
45 double ScalarProduct(const Vector &y) const;
46 double Angle(const Vector &y) const;
47 bool IsZero() const;
48 bool IsOne() const;
49 bool IsNormalTo(const Vector &normal) const;
50 bool IsEqualTo(const Vector &a) const;
51
52 void AddVector(const Vector &y);
53 void SubtractVector(const Vector &y);
54 void VectorProduct(const Vector &y);
55 void ProjectOntoPlane(const Vector &y);
56 void ProjectIt(const Vector &y);
57 Vector Projection(const Vector &y) const;
58 void ScaleAll(const double *factor);
59 void ScaleAll(const Vector &factor);
60 void Scale(const double factor);
61 bool GetOneNormalVector(const Vector &x1);
62 bool MakeNormalTo(const Vector &y1);
63 std::pair<Vector,Vector> partition(const Vector&) const;
64 std::pair<pointset,Vector> partition(const pointset&) const;
65
66 // Accessors ussually come in pairs... and sometimes even more than that
67 double& operator[](size_t i);
68 const double& operator[](size_t i) const;
69 double& at(size_t i);
70 const double& at(size_t i) const;
71
72 // Assignment operator
73 Vector &operator=(const Vector& src);
74
75 // Access to internal structure
76 VectorContent* get();
77
78 // Methods that are derived directly from other methods
79 double Norm() const;
80 double NormSquared() const;
81 void Normalize();
82 void Zero();
83 void One(const double one);
84 void LinearCombinationOfVectors(const Vector &x1, const Vector &x2, const Vector &x3, const double * const factors);
85
86 // operators for mathematical operations
87 bool operator==(const Vector& b) const;
88 bool operator!=(const Vector& b) const;
89 const Vector& operator+=(const Vector& b);
90 const Vector& operator-=(const Vector& b);
91 Vector const operator+(const Vector& b) const;
92 Vector const operator-(const Vector& b) const;
93
94 // Methods inherited from Space
95 virtual double distance(const Vector &point) const;
96 virtual Vector getClosestPoint(const Vector &point) const;
97
98protected:
99
100private:
101 Vector(VectorContent *);
102 VectorContent *content;
103
104};
105
106// some commonly used and fixed vectors
107const extern Vector zeroVec;
108const extern Vector e1;
109const extern Vector e2;
110const extern Vector e3;
111
112ostream & operator << (ostream& ost, const Vector &m);
113const Vector& operator*=(Vector& a, const double m);
114Vector const operator*(const Vector& a, const double m);
115Vector const operator*(const double m, const Vector& a);
116
117#endif /*VECTOR_HPP_*/
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