1 | // %flair:license{ |
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2 | // This file is part of the Flair framework distributed under the |
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3 | // CECILL-C License, Version 1.0. |
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4 | // %flair:license} |
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5 | /*! |
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6 | * \file Quaternion.h |
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7 | * \brief Class defining a quaternion |
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8 | * \author Guillaume Sanahuja, Copyright Heudiasyc UMR UTC/CNRS 7253 |
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9 | * \date 2016/02/03 |
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10 | * \version 4.0 |
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11 | */ |
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12 | #ifndef QUATERNION_H |
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13 | #define QUATERNION_H |
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14 | |
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15 | namespace flair { |
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16 | namespace core { |
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17 | class Euler; |
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18 | class Vector3D; |
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19 | class RotationMatrix; |
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20 | |
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21 | /*! \class Quaternion |
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22 | * |
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23 | * \brief Class defining a quaternion |
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24 | */ |
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25 | class Quaternion { |
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26 | public: |
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27 | /*! |
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28 | * \brief Constructor |
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29 | * |
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30 | * Construct a quaternion using specified values. |
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31 | * |
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32 | * \param q0, scalar part |
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33 | * \param q1 |
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34 | * \param q2 |
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35 | * \param q3 |
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36 | */ |
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37 | Quaternion(float q0 = 1, float q1 = 0, float q2 = 0, float q3 = 0); |
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38 | |
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39 | /*! |
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40 | * \brief Destructor |
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41 | * |
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42 | */ |
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43 | ~Quaternion(); |
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44 | |
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45 | /*! |
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46 | * \brief Norm |
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47 | * |
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48 | * \return norm |
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49 | */ |
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50 | float GetNorm(void) const; |
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51 | |
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52 | /*! |
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53 | * \brief Normalize |
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54 | */ |
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55 | void Normalize(void); |
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56 | |
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57 | /*! |
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58 | * \brief Logarithm |
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59 | * |
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60 | * This method also Normalize the quaternion. |
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61 | * |
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62 | * \param logarithm output logarithm |
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63 | */ |
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64 | void GetLogarithm(Vector3D &logarithm); |
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65 | |
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66 | /*! |
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67 | * \brief Logarithm |
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68 | * |
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69 | * This method also Normalize the quaternion. |
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70 | * |
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71 | * \return output logarithm |
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72 | */ |
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73 | Vector3D GetLogarithm(void); |
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74 | |
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75 | /*! |
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76 | * \brief Conjugate |
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77 | */ |
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78 | void Conjugate(void); |
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79 | |
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80 | /*! |
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81 | * \brief Conjugate |
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82 | * |
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83 | * \return Conjugate |
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84 | */ |
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85 | Quaternion GetConjugate(void); |
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86 | |
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87 | /*! |
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88 | * \brief Derivative |
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89 | * |
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90 | * \param w angular speed |
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91 | * |
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92 | * \return derivative |
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93 | */ |
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94 | Quaternion GetDerivative(const Vector3D &angularSpeed) const; |
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95 | |
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96 | /*! |
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97 | * \brief Derivate |
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98 | * |
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99 | * \param w rotationonal speed |
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100 | */ |
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101 | void Derivate(const Vector3D &angularSpeed); |
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102 | |
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103 | /*! |
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104 | * \brief Convert to euler angles |
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105 | * |
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106 | * \param euler output euler angles |
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107 | */ |
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108 | void ToEuler(Euler &euler) const; |
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109 | |
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110 | /*! |
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111 | * \brief Convert to euler angles |
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112 | * |
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113 | * \return euler angles |
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114 | */ |
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115 | Euler ToEuler(void) const; |
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116 | |
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117 | /*! |
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118 | * \brief Convert to rotation matrix |
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119 | * |
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120 | * \param m output matrix |
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121 | */ |
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122 | void ToRotationMatrix(RotationMatrix &matrix) const; |
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123 | |
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124 | /*! |
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125 | * \brief q0 |
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126 | */ |
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127 | float q0; |
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128 | |
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129 | /*! |
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130 | * \brief q1 |
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131 | */ |
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132 | float q1; |
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133 | |
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134 | /*! |
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135 | * \brief q2 |
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136 | */ |
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137 | float q2; |
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138 | |
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139 | /*! |
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140 | * \brief q3 |
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141 | */ |
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142 | float q3; |
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143 | |
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144 | Quaternion &operator+=(const Quaternion &quaternion); |
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145 | Quaternion &operator-=(const Quaternion &quaternion); |
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146 | Quaternion &operator=(const Quaternion &quaternion); |
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147 | }; |
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148 | |
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149 | /*! Add |
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150 | * |
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151 | * \brief Add |
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152 | * |
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153 | * \param quaterniontA quaternion |
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154 | * \param quaterniontB quaternion |
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155 | * |
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156 | * \return quaterniontA+quaterniontB |
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157 | */ |
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158 | Quaternion operator+(Quaternion const &quaterniontA, |
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159 | Quaternion const &quaterniontB); |
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160 | |
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161 | /*! Substract |
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162 | * |
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163 | * \brief Substract |
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164 | * |
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165 | * \param quaterniontA quaternion |
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166 | * \param quaterniontB quaternion |
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167 | * |
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168 | * \return quaterniontA-quaterniontB |
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169 | */ |
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170 | Quaternion operator-(Quaternion const &quaternionA, |
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171 | Quaternion const &quaterniontB); |
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172 | |
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173 | /*! Minus |
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174 | * |
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175 | * \brief Minus |
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176 | * |
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177 | * \param quaternion quaternion |
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178 | * |
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179 | * \return -quaternion |
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180 | */ |
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181 | Quaternion operator-(const Quaternion &quaternion); |
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182 | |
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183 | /*! Multiply |
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184 | * |
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185 | * \brief Multiply |
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186 | * |
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187 | * \param quaterniontA quaternion |
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188 | * \param quaterniontB quaternion |
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189 | * |
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190 | * \return quaterniontA*quaterniontB |
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191 | */ |
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192 | Quaternion operator*(Quaternion const &quaternionA, |
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193 | Quaternion const &quaterniontB); |
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194 | |
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195 | /*! Multiply |
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196 | * |
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197 | * \brief Multiply |
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198 | * |
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199 | * \param coeff coefficient |
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200 | * \param quat quaternion |
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201 | * |
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202 | * \return coeff*quat |
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203 | */ |
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204 | Quaternion operator*(float coeff, Quaternion const &quaternion); |
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205 | |
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206 | /*! Multiply |
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207 | * |
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208 | * \brief Multiply |
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209 | * |
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210 | * \param quat quaternion |
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211 | * \param coeff coefficient |
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212 | * |
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213 | * \return coeff*quat |
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214 | */ |
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215 | Quaternion operator*(Quaternion const &quaternion, float coeff); |
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216 | |
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217 | } // end namespace core |
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218 | } // end namespace flair |
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219 | |
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220 | #endif // QUATERNION_H |
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