public void BeginGeometry(OpenGisGeometryType type)
{
if (_geomCollection == null)
{
_geomCollection = new SinkGeometryCollection <OpenGisGeometryType>(type);
if (type == OpenGisGeometryType.GeometryCollection)
{
_isGeometryCollection = true;
}
}
_currentGeometry = new SinkGeometry <OpenGisGeometryType>(type);
if (_isGeometryCollection && _nestLevel > 0)
{
if (_nestLevel == 1)
{
_geomCollection.SubItems.Add(new SinkGeometryCollection <OpenGisGeometryType>(type));
}
_geomCollection.SubItems.Last().Add(_currentGeometry);
}
else
{
_geomCollection.Add(_currentGeometry);
}
_nestLevel++;
}
private IGeometryObject ConstructGeometryPart(SinkGeometry <OpenGisGeometryType> geomPart)
{
IGeometryObject geometry = null;
switch (geomPart.GeometryType)
{
case OpenGisGeometryType.Point:
geometry = new Point(geomPart[0][0]);
break;
case OpenGisGeometryType.MultiPoint:
MultiPoint mp = new MultiPoint(geomPart.Select(g => new Point(g[0])).ToList());
geometry = mp;
break;
case OpenGisGeometryType.LineString:
geometry = new LineString(geomPart[0]);
break;
case OpenGisGeometryType.MultiLineString:
geometry = new MultiLineString(geomPart.Select(line => new LineString(line))
.ToList()
);
break;
case OpenGisGeometryType.Polygon:
geometry = new Polygon(geomPart.Select(line => new LineString(line))
.ToList()
);
break;
case OpenGisGeometryType.MultiPolygon:
//geometry = new MultiPolygon(geomPart.Skip(1)
// .Select(g => (Polygon)ConstructGeometryPart(g))
// .ToList());
geometry = new MultiPolygon();
break;
default:
throw new NotSupportedException("Geometry type " + geomPart.GeometryType.ToString() + " is not supported yet.");
}
return(geometry);
}
public void EndGeometry()
{
_nestLevel--;
_currentGeometry = null;
}