/// <summary>
///
/// </summary>
/// <param name="p"></param>
/// <param name="ring"></param>
/// <returns></returns>
private Locations LocateInPolygonRing(ICoordinate p, ILinearRing ring)
{
// can this test be folded into IsPointInRing?
if (CGAlgorithms.IsOnLine(p, ring.Coordinates))
{
return(Locations.Boundary);
}
if (CGAlgorithms.IsPointInRing(p, ring.Coordinates))
{
return(Locations.Interior);
}
return(Locations.Exterior);
}
/// <summary>
///
/// </summary>
/// <param name="p"></param>
/// <param name="l"></param>
/// <returns></returns>
private Locations Locate(ICoordinate p, ILineString l)
{
ICoordinate[] pt = l.Coordinates;
if (!l.IsClosed)
{
if (p.Equals(pt[0]) || p.Equals(pt[pt.Length - 1]))
{
return(Locations.Boundary);
}
}
if (CGAlgorithms.IsOnLine(p, pt))
{
return(Locations.Interior);
}
return(Locations.Exterior);
}