/// <summary>
/// Is this arc clockwise with respect to the specified coordinate system?
/// The coordinate system specified should have its origin at the centre of
/// this arc's circle.
/// </summary>
/// <param name="cSystem"></param>
/// <returns></returns>
public bool IsClockwiseIn(CylindricalCoordinateSystem cSystem)
{
if (Vertices.Count >= 3 && cSystem != null)
{
Angle toStart = cSystem.Azimuth(Vertices.First().Position);
Angle toEnd = cSystem.Azimuth(Vertices.Last().Position).NormalizeTo2PI();
Angle toMid = cSystem.Azimuth(Vertices[1].Position).NormalizeTo2PI();
return(toEnd > toMid);
}
return(false);
}
/// <summary>
/// Duplication constructor, moving the origin of the coordinat system to a new position
/// </summary>
/// <param name="other"></param>
/// <param name="origin"></param>
public CylindricalCoordinateSystem(CylindricalCoordinateSystem other, Vector origin)
{
Origin = origin;
L = other.L;
A = other.A;
}
/// <summary>
/// Duplication constructor.
/// </summary>
/// <param name="other"></param>
public CylindricalCoordinateSystem(CylindricalCoordinateSystem other)
{
Origin = other.Origin;
L = other.L;
A = other.A;
}
/// <summary>
/// Radius, coordinatesystem constructor.
/// Creates a circle lying on the reference plane and centred on the origin
/// of the specified coordinate system.
/// </summary>
/// <param name="radius">The radius of the circle</param>
/// <param name="cSystem">The coordinate system on which the circle will be placed</param>
public Circle(double radius, CylindricalCoordinateSystem cSystem) : base(cSystem)
{
Radius = radius;
}
/// <summary>
/// Radius, coordinatesystem, origin constructor.
/// Creates a circle orientated to the given coordinate system but with a new origin
/// </summary>
/// <param name="radius">The radius of the circle</param>
/// <param name="cSystem">The coordinate system on which the circle will be placed</param>
public Circle(double radius, CylindricalCoordinateSystem cSystem, Vector origin) : base(cSystem, origin)
{
Radius = radius;
}