/// <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 <Geometry> 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)
{
return(_QuickGeometries
? geomFactory.createQuickGeometries(geometryTypeString)
: geomFactory.createGeometries());
}
return(_Geoms);
}
/// <summary>
/// This method produces instances of type <see cref="Mapsui.Geometries.MultiPoint"/>.
/// </summary>
/// <returns>The created geometries</returns>
internal override Collection<Geometry> createGeometries()
{
IPathNode multiPointNode = new PathNode(_GMLNS, "MultiPoint", (NameTable) _XmlReader.NameTable);
IPathNode pointMemberNode = new PathNode(_GMLNS, "pointMember", (NameTable) _XmlReader.NameTable);
var labelValue = new string[1];
bool geomFound = false;
try
{
// Reading the entire feature's node makes it possible to collect label values that may appear before or after the geometry property
while ((_FeatureReader = GetSubReaderOf(_XmlReader, null, _FeatureNode)) != null)
{
while (
(_GeomReader = GetSubReaderOf(_FeatureReader, labelValue, multiPointNode, pointMemberNode)) !=
null)
{
var multiPoint = new MultiPoint();
GeometryFactory geomFactory = new PointFactory(_GeomReader, _FeatureTypeInfo);
Collection<Geometry> points = geomFactory.createGeometries();
foreach (Point point in points)
multiPoint.Points.Add(point);
_Geoms.Add(multiPoint);
geomFound = true;
}
if (geomFound) AddLabel(labelValue[0], _Geoms[_Geoms.Count - 1]);
geomFound = false;
}
}
catch (Exception ex)
{
Trace.TraceError("An exception occured while parsing a multi-point geometry: " + ex.Message);
throw;
}
return _Geoms;
}
/// <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<Geometry> 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)
return _QuickGeometries
? geomFactory.createQuickGeometries(geometryTypeString)
: geomFactory.createGeometries();
return _Geoms;
}
public Collection<Geometry> GetGeometriesInView(BoundingBox bbox)
{
if (_FeatureTypeInfo == null) return null;
Collection<Geometry> geoms = new Collection<Geometry>();
string geometryTypeString = _FeatureTypeInfo.Geometry._GeometryType;
GeometryFactory geomFactory = null;
if (!string.IsNullOrEmpty(_Label))
{
_LabelInfo = new FeatureDataTable();
_LabelInfo.Columns.Add(_Label);
// Turn off quick geometries, if a label is applied...
_QuickGeometries = false;
}
// Configuration for GetFeature request */
WFSClientHTTPConfigurator config = new WFSClientHTTPConfigurator(_TextResources);
config.configureForWfsGetFeatureRequest(_HttpClientUtil, _FeatureTypeInfo, _Label, bbox, _OGCFilter,
_GetFeatureGETRequest);
try
{
switch (geometryTypeString)
{
/* Primitive geometry elements */
// GML2
case "PointPropertyType":
geomFactory = new PointFactory(_HttpClientUtil, _FeatureTypeInfo, _LabelInfo);
break;
// GML2
case "LineStringPropertyType":
geomFactory = new LineStringFactory(_HttpClientUtil, _FeatureTypeInfo, _LabelInfo);
break;
// GML2
case "PolygonPropertyType":
geomFactory = new PolygonFactory(_HttpClientUtil, _FeatureTypeInfo, _LabelInfo);
break;
// GML3
case "CurvePropertyType":
geomFactory = new LineStringFactory(_HttpClientUtil, _FeatureTypeInfo, _LabelInfo);
break;
// GML3
case "SurfacePropertyType":
geomFactory = new PolygonFactory(_HttpClientUtil, _FeatureTypeInfo, _LabelInfo);
break;
/* Aggregate geometry elements */
// GML2
case "MultiPointPropertyType":
if (_MultiGeometries)
geomFactory = new MultiPointFactory(_HttpClientUtil, _FeatureTypeInfo, _LabelInfo);
else
geomFactory = new PointFactory(_HttpClientUtil, _FeatureTypeInfo, _LabelInfo);
break;
// GML2
case "MultiLineStringPropertyType":
if (_MultiGeometries)
geomFactory = new MultiLineStringFactory(_HttpClientUtil, _FeatureTypeInfo, _LabelInfo);
else
geomFactory = new LineStringFactory(_HttpClientUtil, _FeatureTypeInfo, _LabelInfo);
break;
// GML2
case "MultiPolygonPropertyType":
if (_MultiGeometries)
geomFactory = new MultiPolygonFactory(_HttpClientUtil, _FeatureTypeInfo, _LabelInfo);
else
geomFactory = new PolygonFactory(_HttpClientUtil, _FeatureTypeInfo, _LabelInfo);
break;
// GML3
case "MultiCurvePropertyType":
if (_MultiGeometries)
geomFactory = new MultiLineStringFactory(_HttpClientUtil, _FeatureTypeInfo, _LabelInfo);
else
geomFactory = new LineStringFactory(_HttpClientUtil, _FeatureTypeInfo, _LabelInfo);
break;
// GML3
case "MultiSurfacePropertyType":
if (_MultiGeometries)
geomFactory = new MultiPolygonFactory(_HttpClientUtil, _FeatureTypeInfo, _LabelInfo);
else
geomFactory = new PolygonFactory(_HttpClientUtil, _FeatureTypeInfo, _LabelInfo);
break;
// .e.g. 'gml:GeometryAssociationType' or 'GeometryPropertyType'
//It's better to set the geometry type manually, if it is known...
default:
geomFactory = new UnspecifiedGeometryFactory_WFS1_0_0_GML2(_HttpClientUtil, _FeatureTypeInfo,
_MultiGeometries, _QuickGeometries,
_LabelInfo);
geoms = geomFactory.createGeometries();
return geoms;
}
geoms = _QuickGeometries
? geomFactory.createQuickGeometries(geometryTypeString)
: geomFactory.createGeometries();
geomFactory.Dispose();
return geoms;
}
// Free resources (net connection of geometry factory)
finally
{
geomFactory.Dispose();
}
}