public void CleanupSelection()
{
foreach (RegionPointMarker pm in _regionPoints)
{
pm.Dispose();
}
_regionPoints.Clear();
foreach (RegionPointMarker pm in _regionMidpoints)
{
pm.Dispose();
}
_regionMidpoints.Clear();
if (_regionHitMarker != null)
{
_regionHitMarker.Dispose();
_regionHitMarker = null;
}
Map.OnMapZoomChanged -= Map_OnMapZoomChanged;
}
