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 GeometryFromSinkGeometryCollection(SinkGeometryCollection <OpenGisGeometryType> sinkCollection)
{
IGeometryObject _geometry = null;
switch (sinkCollection.GeometryType)
{
case OpenGisGeometryType.Point:
_geometry = ConstructGeometryPart(sinkCollection[0]);
((Point)_geometry).BoundingBoxes = this.BoundingBox;
break;
case OpenGisGeometryType.MultiPoint:
_geometry = new MultiPoint(sinkCollection.Skip(1)
.Select(g => (Point)ConstructGeometryPart(g))
.ToList());
((MultiPoint)_geometry).BoundingBoxes = this.BoundingBox;
break;
case OpenGisGeometryType.LineString:
_geometry = ConstructGeometryPart(sinkCollection[0]);
((LineString)_geometry).BoundingBoxes = this.BoundingBox;
break;
case OpenGisGeometryType.MultiLineString:
_geometry = new MultiLineString(sinkCollection.Skip(1)
.Select(g => (LineString)ConstructGeometryPart(g))
.ToList());
((MultiLineString)_geometry).BoundingBoxes = this.BoundingBox;
break;
case OpenGisGeometryType.Polygon:
_geometry = ConstructGeometryPart(sinkCollection.First());
((Polygon)_geometry).BoundingBoxes = this.BoundingBox;
break;
case OpenGisGeometryType.MultiPolygon:
_geometry = new MultiPolygon(sinkCollection.Skip(1)
.Select(g => (Polygon)ConstructGeometryPart(g))
.ToList());
((MultiPolygon)_geometry).BoundingBoxes = this.BoundingBox;
break;
default:
throw new NotSupportedException("Geometry type " + sinkCollection.GeometryType.ToString() + " is not possible in GetConstructedGeometry.");
}
return(_geometry);
}