/// <summary>
/// For all rings in the input list,
/// determine whether the ring is a shell or a hole
/// and add it to the appropriate list.
/// Due to the way the DirectedEdges were linked,
/// a ring is a shell if it is oriented CW, a hole otherwise.
/// </summary>
/// <param name="edgeRings"></param>
/// <param name="shellList"></param>
/// <param name="freeHoleList"></param>
private void SortShellsAndHoles(IList edgeRings, IList shellList, IList freeHoleList)
{
for (IEnumerator it = edgeRings.GetEnumerator(); it.MoveNext();)
{
EdgeRing er = (EdgeRing)it.Current;
er.SetInResult();
if (er.IsHole)
{
freeHoleList.Add(er);
}
else
{
shellList.Add(er);
}
}
}
} // private void PlacePolygonHoles( EdgeRing shell, ArrayList minEdgeRings )
/// <summary>
/// For all rings in the input list,
/// determine whether the ring is a shell or a hole
/// and add it to the appropriate list.
/// Due to the way the DirectedEdges were linked,
/// a ring is a shell if it is oriented CW, a hole otherwise.
/// </summary>
/// <param name="edgeRings"></param>
/// <param name="shellList"></param>
/// <param name="freeHoleList"></param>
private void SortShellsAndHoles(ArrayList edgeRings, ref ArrayList shellList, ref ArrayList freeHoleList)
{
foreach (object obj in edgeRings)
{
EdgeRing er = (EdgeRing)obj;
er.SetInResult();
if (er.IsHole)
{
freeHoleList.Add(er);
}
else
{
shellList.Add(er);
}
} // foreach ( object obj in edgeRings )
} // private void SortShellsAndHoles(ArrayList edgeRings, ArrayList shellList, ArrayList freeHoleList)