/// <summary> /// This method produces instances of type <see cref="EasyMap.Geometries.MultiPolygon"/>. /// </summary> /// <returns>The created geometries</returns> internal override Collection <Geometry> createGeometries() { MultiPolygon multiPolygon = null; IPathNode multiPolygonNode = new PathNode(_GMLNS, "MultiPolygon", (NameTable)_XmlReader.NameTable); IPathNode multiSurfaceNode = new PathNode(_GMLNS, "MultiSurface", (NameTable)_XmlReader.NameTable); IPathNode multiPolygonNodeAlt = new AlternativePathNodesCollection(multiPolygonNode, multiSurfaceNode); IPathNode polygonMemberNode = new PathNode(_GMLNS, "polygonMember", (NameTable)_XmlReader.NameTable); IPathNode surfaceMemberNode = new PathNode(_GMLNS, "surfaceMember", (NameTable)_XmlReader.NameTable); IPathNode polygonMemberNodeAlt = new AlternativePathNodesCollection(polygonMemberNode, surfaceMemberNode); IPathNode linearRingNode = new PathNode(_GMLNS, "LinearRing", (NameTable)_XmlReader.NameTable); string[] 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, multiPolygonNodeAlt, polygonMemberNodeAlt)) != null) { multiPolygon = new MultiPolygon(); GeometryFactory geomFactory = new PolygonFactory(_GeomReader, _FeatureTypeInfo); Collection <Geometry> polygons = geomFactory.createGeometries(); foreach (Polygon polygon in polygons) { multiPolygon.Polygons.Add(polygon); } _Geoms.Add(multiPolygon); 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-polygon geometry: " + ex.Message); throw ex; } 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); }