| 1 | #include "transformation.h" |
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| 2 | #include <math.h> |
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| 3 | #include <stdexcept> |
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| 4 | |
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| 5 | void RotateX(const double ang_x,Point3D &a_point) |
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| 6 | { |
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| 7 | double sinA_ = sin(ang_x); |
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| 8 | double cosA_ = cos(ang_x); |
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| 9 | double pointX_ = a_point.getX(); |
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| 10 | double pointY_ = a_point.getY(); |
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| 11 | double pointZ_ = a_point.getZ(); |
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| 12 | |
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| 13 | double x_new_ = pointX_; |
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| 14 | double y_new_ = pointY_*cosA_ - pointZ_*sinA_; |
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| 15 | double z_new_ = pointY_*sinA_ - pointZ_*cosA_; |
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| 16 | |
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| 17 | a_point.set(x_new_, y_new_, z_new_); |
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| 18 | } |
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| 19 | |
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| 20 | void RotateY(const double ang_y,Point3D &a_point) |
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| 21 | { |
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| 22 | double sinA_ = sin(ang_y); |
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| 23 | double cosA_ = cos(ang_y); |
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| 24 | double pointX_ = a_point.getX(); |
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| 25 | double pointY_ = a_point.getY(); |
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| 26 | double pointZ_ = a_point.getZ(); |
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| 27 | |
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| 28 | double x_new_ = pointX_*cosA_ + pointZ_*sinA_; |
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| 29 | double y_new_ = pointY_; |
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| 30 | double z_new_ = -pointX_*sinA_ + pointZ_*cosA_; |
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| 31 | |
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| 32 | a_point.set(x_new_, y_new_, z_new_); |
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| 33 | } |
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| 34 | |
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| 35 | void RotateZ(const double ang_z,Point3D &a_point) |
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| 36 | { |
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| 37 | double sinA_= sin(ang_z); |
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| 38 | double cosA_ = cos(ang_z); |
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| 39 | double pointX_ = a_point.getX(); |
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| 40 | double pointY_ = a_point.getY(); |
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| 41 | double pointZ_ = a_point.getZ(); |
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| 42 | |
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| 43 | double x_new_ = pointX_*cosA_ - pointY_*sinA_; |
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| 44 | double y_new_ = pointX_*sinA_+ pointY_*cosA_; |
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| 45 | double z_new_ = pointZ_; |
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| 46 | |
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| 47 | a_point.set(x_new_, y_new_, z_new_); |
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| 48 | } |
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| 49 | |
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| 50 | void Translate(const double trans_x, const double trans_y, const double trans_z, Point3D &a_point) |
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| 51 | { |
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| 52 | double x_new_ = a_point.getX() + trans_x; |
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| 53 | double y_new_ = a_point.getY() + trans_y; |
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| 54 | double z_new_ = a_point.getZ() + trans_z; |
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| 55 | |
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| 56 | a_point.set(x_new_, y_new_, z_new_); |
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| 57 | } |
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| 58 | |
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| 59 | void RotateMatrix(const vector<double> &rotmatrix, Point3D &a_point) |
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| 60 | { |
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| 61 | if (rotmatrix.size() != 9) |
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| 62 | throw std::runtime_error("The size for rotation matrix vector has to be 9."); |
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| 63 | |
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| 64 | double xold = a_point.getX(); |
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| 65 | double yold = a_point.getY(); |
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| 66 | double zold = a_point.getZ(); |
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| 67 | |
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| 68 | double x_new_ = rotmatrix[0]*xold + rotmatrix[1]*yold + rotmatrix[2]*zold; |
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| 69 | double y_new_ = rotmatrix[3]*xold + rotmatrix[4]*yold + rotmatrix[5]*zold; |
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| 70 | double z_new_ = rotmatrix[6]*xold + rotmatrix[7]*yold + rotmatrix[8]*zold; |
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| 71 | |
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| 72 | a_point.set(x_new_, y_new_, z_new_); |
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| 73 | } |
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