/// <summary>
/// Rotate the current vector around a specified vector from a defined angle in radians.
/// </summary>
/// <param name="v">Vector used as a rotation axis.</param>
/// <param name="theta">Angle of rotation expressed in radians.</param>
/// <returns>The coordinates of the resulting rotated vector.</returns>
public SphericalVector RotateAround(SphericalVector v, double theta)
{
if (theta.IsZero())
{
return(this);
}
return(CoordinateConverter.ConvertToSpherical(CoordinateConverter.ConvertToCartesian(this).RotateAroundVector(CoordinateConverter.ConvertToCartesian(v), theta)));
}
/// <summary>
/// Convert a Spherical Vector to his Cartesian equivalent.
/// </summary>
/// <param name="sc">Spherical coordinate to convert.</param>
/// <returns>The Vector converted to a Cartesian representation.</returns>
public static Cartesian3dCoordinate ConvertToCartesian(SphericalVector sc)
{
double sinTheta = Trigonometry.Sin(sc.Theta);
return(new Cartesian3dCoordinate(
sinTheta * Trigonometry.Cos(sc.Phi),
sinTheta * Trigonometry.Sin(sc.Phi),
Trigonometry.Cos(sc.Theta)
));
}