private static Octants SafeOctant(Coordinate p0, Coordinate p1)
{
if (p0.Equals2D(p1))
{
return(Octants.Zero);
}
return(Octant.GetOctant(p0, p1));
}
///<summary>
/// Gets the octant of the segment starting at vertex <code>index</code>
///</summary>
///<param name="index">the index of the vertex starting the segment. Must not be the last index in the vertex list</param>
///<returns>octant of the segment at the vertex</returns>
public Octants GetSegmentOctant(int index)
{
return(index == _pts.Length - 1
? Octants.Null :
Octant.GetOctant(_pts[index], _pts[index + 1]));
}