/// <summary>
/// Checks if two lines are parallel to each other.
/// </summary>
/// <param name="line1">First line.</param>
/// <param name="line2">Second line.</param>
/// <returns></returns>
public static bool IsParallel(Line3D line1, Line3D line2)
{
return(IsParallel(line1.DirectionVector, line2.DirectionVector));
}
/// <summary>
/// Calculates the angle between two lines in radians.
/// </summary>
/// <param name="line1">First line.</param>
/// <param name="line2">Second line.</param>
/// <returns></returns>
public static double AngleBetween(Line3D line1, Line3D line2)
{
return(AngleBetween(line1.DirectionVector, line2.DirectionVector));
}
/// <summary>
/// Calculates the angle between a plane and a line in radians.
/// </summary>
/// <param name="plane">A plane.</param>
/// <param name="line">A line</param>
/// <returns></returns>
public static double AngleBetween(Plane3D plane, Line3D line)
{
return(Math.PI / 2 - AngleBetween(plane.NormalVector, line.DirectionVector));
}
/// <summary>
/// Calculates the angle between a line and a vector in radians.
/// </summary>
/// <param name="line">A line.</param>
/// <param name="vector">A vector.</param>
/// <returns></returns>
public static double AngleBetween(Line3D line, Vect3D vector)
{
return(AngleBetween(line.DirectionVector, vector));
}