/// <summary>
///
/// </summary>
/// <param name="p"></param>
/// <param name="geom"></param>
/// <returns></returns>
private static bool ContainsPoint(Coordinate p, IGeometry geom)
{
if(geom is Polygon)
return ContainsPointInPolygon(p, (Polygon)geom);
else if(geom is GeometryCollection)
{
IEnumerator geomi = new GeometryCollectionEnumerator((GeometryCollection)geom);
while(geomi.MoveNext())
{
Geometry g2 = (Geometry)geomi.Current;
// if(g2 != geom) --- Diego Guidi say's: Java code tests reference equality: in C# with operator overloads we tests the object.equals()... more slower!
if (!Object.ReferenceEquals(g2, geom))
if(ContainsPoint(p, g2))
return true;
}
}
return false;
}
/// <summary>
///
/// </summary>
/// <param name="p"></param>
/// <param name="geom"></param>
private void ComputeLocation(Coordinate p, IGeometry geom)
{
if(geom is ILineString)
UpdateLocationInfo(Locate(p, (ILineString)geom));
else if(geom is IPolygon)
UpdateLocationInfo(Locate(p, (IPolygon)geom));
else if(geom is IMultiLineString)
{
IMultiLineString ml = (IMultiLineString)geom;
foreach(ILineString l in ml.Geometries)
UpdateLocationInfo(Locate(p, l));
}
else if(geom is IMultiPolygon)
{
IMultiPolygon mpoly = (IMultiPolygon)geom;
foreach(IPolygon poly in mpoly.Geometries)
UpdateLocationInfo(Locate(p, poly));
}
else if (geom is IGeometryCollection)
{
IEnumerator geomi = new GeometryCollectionEnumerator((IGeometryCollection)geom);
while(geomi.MoveNext())
{
IGeometry g2 = (IGeometry)geomi.Current;
if (g2 != geom)
ComputeLocation(p, g2);
}
}
}
/// <summary>
///
/// </summary>
/// <returns></returns>
public virtual bool MoveNext()
{
if (_atStart)
return true;
if (_subcollectionEnumerator != null)
{
if (_subcollectionEnumerator.MoveNext())
return true;
_subcollectionEnumerator = null;
}
if (_index >= _max)
return false;
return true;
}
