|
private CreateGeometries ( Features features ) : Collection |
||
| features | Features | |
| 리턴 | Collection |
|
/// <summary>
/// This method produces instances of type <see cref="Mapsui.Geometries.MultiPolygon"/>.
/// </summary>
/// <returns>The created geometries</returns>
internal override Collection <Geometry> CreateGeometries(Features features)
{
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);
var labelValues = new Dictionary <string, string>();
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, labelValues, multiPolygonNodeAlt, polygonMemberNodeAlt)) != null)
{
var multiPolygon = new MultiPolygon();
GeometryFactory geomFactory = new PolygonFactory(GeomReader, FeatureTypeInfo)
{
AxisOrder = AxisOrder
};
Collection <Geometry> polygons = geomFactory.CreateGeometries(features);
foreach (var geometry in polygons)
{
var polygon = (Polygon)geometry;
multiPolygon.Polygons.Add(polygon);
}
Geoms.Add(multiPolygon);
geomFound = true;
}
if (geomFound)
{
features.Add(AddLabel(labelValues, Geoms[Geoms.Count - 1]));
}
geomFound = false;
}
}
catch (Exception ex)
{
Trace.TraceError("An exception occured while parsing a multi-polygon geometry: " + ex.Message);
throw;
}
return(Geoms);
}
/// <summary>
/// This method produces instances of type <see cref="Mapsui.Geometries.MultiPolygon"/>.
/// </summary>
/// <returns>The created geometries</returns>
internal override Collection<Geometry> CreateGeometries(Features features)
{
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);
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, multiPolygonNodeAlt, polygonMemberNodeAlt)) != null)
{
var multiPolygon = new MultiPolygon();
GeometryFactory geomFactory = new PolygonFactory(GeomReader, FeatureTypeInfo);
Collection<Geometry> polygons = geomFactory.CreateGeometries(features);
foreach (Polygon polygon in polygons)
multiPolygon.Polygons.Add(polygon);
Geoms.Add(multiPolygon);
geomFound = true;
}
if (geomFound) features.Add(CreateFeature(Geoms[Geoms.Count - 1], FeatureTypeInfo.LableField, labelValue[0]));
geomFound = false;
}
}
catch (Exception ex)
{
Trace.TraceError("An exception occured while parsing a multi-polygon geometry: " + ex.Message);
throw;
}
return Geoms;
}
