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