internal static com.epl.geometry.Geometry Calculate(com.epl.geometry.Geometry geom, com.epl.geometry.ProgressTracker progress_tracker)
{
int gt = geom.GetType().Value();
if (gt == com.epl.geometry.Geometry.GeometryType.Polygon)
{
com.epl.geometry.Polyline dst = new com.epl.geometry.Polyline(geom.GetDescription());
if (!geom.IsEmpty())
{
((com.epl.geometry.MultiPathImpl)geom._getImpl())._copyToUnsafe((com.epl.geometry.MultiPathImpl)dst._getImpl());
}
return(dst);
}
else
{
if (gt == com.epl.geometry.Geometry.GeometryType.Polyline)
{
return(CalculatePolylineBoundary_(geom._getImpl(), progress_tracker, false, null));
}
else
{
if (gt == com.epl.geometry.Geometry.GeometryType.Envelope)
{
com.epl.geometry.Polyline dst = new com.epl.geometry.Polyline(geom.GetDescription());
if (!geom.IsEmpty())
{
dst.AddEnvelope((com.epl.geometry.Envelope)geom, false);
}
return(dst);
}
else
{
if (com.epl.geometry.Geometry.IsSegment(gt))
{
com.epl.geometry.MultiPoint mp = new com.epl.geometry.MultiPoint(geom.GetDescription());
if (!geom.IsEmpty() && !((com.epl.geometry.Segment)geom).IsClosed())
{
com.epl.geometry.Point pt = new com.epl.geometry.Point();
((com.epl.geometry.Segment)geom).QueryStart(pt);
mp.Add(pt);
((com.epl.geometry.Segment)geom).QueryEnd(pt);
mp.Add(pt);
}
return(mp);
}
else
{
if (com.epl.geometry.Geometry.IsPoint(gt))
{
// returns empty point for points and multipoints.
return(null);
}
}
}
}
}
throw new System.ArgumentException();
}