/// <summary>
/// This method detects the geometry type from 'GetFeature' response and uses a geometry factory to create the
/// appropriate geometries.
/// </summary>
/// <returns></returns>
internal override Collection <IGeometry> createGeometries()
{
GeometryFactory geomFactory = null;
string geometryTypeString = string.Empty;
string serviceException = null;
if (_QuickGeometries)
{
_MultiGeometries = false;
}
IPathNode pointNode = new PathNode(_GMLNS, "Point", (NameTable)_XmlReader.NameTable);
IPathNode lineStringNode = new PathNode(_GMLNS, "LineString", (NameTable)_XmlReader.NameTable);
IPathNode polygonNode = new PathNode(_GMLNS, "Polygon", (NameTable)_XmlReader.NameTable);
IPathNode multiPointNode = new PathNode(_GMLNS, "MultiPoint", (NameTable)_XmlReader.NameTable);
IPathNode multiLineStringNode = new PathNode(_GMLNS, "MultiLineString", (NameTable)_XmlReader.NameTable);
IPathNode multiCurveNode = new PathNode(_GMLNS, "MultiCurve", (NameTable)_XmlReader.NameTable);
IPathNode multiLineStringNodeAlt = new AlternativePathNodesCollection(multiLineStringNode, multiCurveNode);
IPathNode multiPolygonNode = new PathNode(_GMLNS, "MultiPolygon", (NameTable)_XmlReader.NameTable);
IPathNode multiSurfaceNode = new PathNode(_GMLNS, "MultiSurface", (NameTable)_XmlReader.NameTable);
IPathNode multiPolygonNodeAlt = new AlternativePathNodesCollection(multiPolygonNode, multiSurfaceNode);
while (_XmlReader.Read())
{
if (_XmlReader.NodeType == XmlNodeType.Element)
{
if (_MultiGeometries)
{
if (multiPointNode.Matches(_XmlReader))
{
geomFactory = new MultiPointFactory(_HttpClientUtil, _FeatureTypeInfo, _LabelInfo);
geometryTypeString = "MultiPointPropertyType";
break;
}
if (multiLineStringNodeAlt.Matches(_XmlReader))
{
geomFactory = new MultiLineStringFactory(_HttpClientUtil, _FeatureTypeInfo, _LabelInfo);
geometryTypeString = "MultiLineStringPropertyType";
break;
}
if (multiPolygonNodeAlt.Matches(_XmlReader))
{
geomFactory = new MultiPolygonFactory(_HttpClientUtil, _FeatureTypeInfo, _LabelInfo);
geometryTypeString = "MultiPolygonPropertyType";
break;
}
}
if (pointNode.Matches(_XmlReader))
{
geomFactory = new PointFactory(_HttpClientUtil, _FeatureTypeInfo, _LabelInfo);
geometryTypeString = "PointPropertyType";
break;
}
if (lineStringNode.Matches(_XmlReader))
{
geomFactory = new LineStringFactory(_HttpClientUtil, _FeatureTypeInfo, _LabelInfo);
geometryTypeString = "LineStringPropertyType";
break;
}
if (polygonNode.Matches(_XmlReader))
{
geomFactory = new PolygonFactory(_HttpClientUtil, _FeatureTypeInfo, _LabelInfo);
geometryTypeString = "PolygonPropertyType";
break;
}
if (_ServiceExceptionNode.Matches(_XmlReader))
{
serviceException = _XmlReader.ReadInnerXml();
Trace.TraceError("A service exception occured: " + serviceException);
throw new Exception("A service exception occured: " + serviceException);
}
}
}
_FeatureTypeInfo.Geometry._GeometryType = geometryTypeString;
if (geomFactory != null)
{
geomFactory.AxisOrder = AxisOrder;
var res = _QuickGeometries
? geomFactory.createQuickGeometries(geometryTypeString)
: geomFactory.createGeometries();
geomFactory.Dispose();
return(res);
}
return(_Geoms);
}
