/// <summary>
/// 直角坐标转球面坐标
/// </summary>
/// <param name="coord"></param>
/// <returns></returns>
public static SphericalCoordinatePoint ToSphericalCoordinatePoint(RectangularCoordinatePoint coord)
{
double radius = GetModuloFromCartesianCoord(coord);
double theta = GetThetaFromCartesianCoord(coord);
double phi = GetPhiFromCartesianCoord(coord);
return new SphericalCoordinatePoint(radius, theta, phi);
}
private static double GetThetaFromCartesianCoord(RectangularCoordinatePoint coord)
{
return Math.Acos(coord.Z / GetModuloFromCartesianCoord(coord));
}
private static double GetPhiFromCartesianCoord(RectangularCoordinatePoint coord)
{
return Math.Atan(coord.Y / coord.X);
}
private static double GetModuloFromCartesianCoord(RectangularCoordinatePoint coord)
{
return Math.Sqrt(coord.X * coord.X + coord.Y * coord.Y + coord.Z * coord.Z);
}
/// <summary>
/// 复制坐标值到目标点
/// </summary>
/// <param name="target"></param>
public void CopyTo(RectangularCoordinatePoint target)
{
target.X = this.X;
target.Y = this.Y;
target.Z = this.Z;
}
/// <summary>
/// 从源点复制坐标值
/// </summary>
/// <param name="source"></param>
public void CopyFrom(RectangularCoordinatePoint source)
{
this.X = source.X;
this.Y = source.Y;
this.Z = source.Z;
}