async static public Task <FeatureClass> CreateAsync(Dataset dataset, string name, Fields fields)
{
var fc = new FeatureClass(dataset, name, fields);
if (dataset != null)
{
fc.SpatialReference = await dataset.GetSpatialReference();
fc.Envelope = await dataset.Envelope();
}
return(fc);
}
public static bool Create(string filename, IGeometryDef geomDef, Fields fields, GmlVersion gmlVersion)
{
try
{
FileInfo fi = new FileInfo(filename);
string name = fi.Name.Substring(0, fi.Name.Length - fi.Extension.Length);
string gml_filename = fi.FullName.Substring(0, fi.FullName.Length - fi.Extension.Length) + ".gml";
string xsd_filename = fi.FullName.Substring(0, fi.FullName.Length - fi.Extension.Length) + ".xsd";
FeatureClass featureClass = new FeatureClass(null, name, fields);
XmlSchemaWriter schemaWriter = new XmlSchemaWriter(featureClass);
string schema = schemaWriter.Write();
using (StreamWriter sw = new StreamWriter(xsd_filename, false, Encoding.UTF8))
{
sw.WriteLine(schema.Trim());
sw.Flush();
sw.Close();
}
using (StreamWriter sw = new StreamWriter(gml_filename, false, Encoding.UTF8))
{
sw.Write(@"<?xml version=""1.0"" encoding=""UTF-8""?>
<gml:FeatureCollection xmlns:gml=""http://www.opengis.net/gml""
xmlns:xlink=""http://www.w3.org/1999/xlink""
xmlns:xsi=""http://www.w3.org/2001/XMLSchema-instance""
xmlns:gv=""http://www.gViewGIS.com/server""
xsi:schemaLocation=""http://www.gview.com/gml " + name + @".xsd"">".Trim());
string boundingBox = GeometryTranslator.Geometry2GML(new Envelope(), String.Empty, gmlVersion);
sw.WriteLine(@"
<gml:boundedBy>");
sw.Write(boundingBox);
sw.Write(@"
</gml:boundedBy>");
sw.Write(@"
</gml:FeatureCollection>");
sw.Flush();
sw.Close();
}
return(true);
}
catch
{
return(false);
}
}
public bool Open()
{
try
{
_state = DatasetState.unknown;
_elements.Clear();
FileInfo fi_gml = new FileInfo(_connectionString);
if (!fi_gml.Exists)
{
return(false);
}
FileInfo fi_xsd = new FileInfo(fi_gml.FullName.Substring(0, fi_gml.FullName.Length - fi_gml.Extension.Length) + ".xsd");
if (!fi_xsd.Exists)
{
return(false);
}
_gml_file = fi_gml.FullName;
_xsd_file = fi_xsd.FullName;
XmlDocument schema = new XmlDocument();
schema.Load(System.IO.File.ReadAllText(fi_xsd.FullName));
XmlSchemaReader schemaReader = new XmlSchemaReader(schema);
string targetNamespace = schemaReader.TargetNamespaceURI;
if (targetNamespace == String.Empty)
{
return(false);
}
PlugInManager compMan = new PlugInManager();
foreach (string elementName in schemaReader.ElementNames)
{
string shapeFieldName;
geometryType geomType;
Fields fields = schemaReader.ElementFields(elementName, out shapeFieldName, out geomType);
FeatureClass fc = new FeatureClass(this, elementName, fields);
fc.ShapeFieldName = shapeFieldName;
fc.GeometryType = geomType;
IFeatureLayer layer = LayerFactory.Create(fc) as IFeatureLayer;
if (layer == null)
{
continue;
}
//layer.FeatureRenderer = compMan.getComponent(KnownObjects.Carto_UniversalGeometryRenderer) as IFeatureRenderer;
_elements.Add(layer);
}
_doc = new XmlDocument();
using (XmlTextReader xmlTextReader = new XmlTextReader(fi_gml.FullName))
{
xmlTextReader.ReadToDescendant("boundedBy", "http://www.opengis.net/gml");
string boundedBy = xmlTextReader.ReadOuterXml();
_doc.LoadXml(boundedBy);
}
_ns = new XmlNamespaceManager(_doc.NameTable);
_ns.AddNamespace("GML", "http://www.opengis.net/gml");
_ns.AddNamespace("WFS", "http://www.opengis.net/wfs");
_ns.AddNamespace("OGC", "http://www.opengis.net/ogc");
_ns.AddNamespace("myns", targetNamespace);
XmlNode boundedByNode = _doc.ChildNodes[0];
if (boundedByNode != null)
{
XmlNode geomNode = boundedByNode.SelectSingleNode("GML:*", _ns);
if (geomNode != null)
{
_envelope = GeometryTranslator.GML2Geometry(geomNode.OuterXml, _gmlVersion) as IEnvelope;
if (geomNode.Attributes["srsName"] != null)
{
_sRef = gView.Framework.Geometry.SpatialReference.FromID(geomNode.Attributes["srsName"].Value);
}
}
}
_state = DatasetState.opened;
return(true);
}
catch (Exception ex)
{
_errMsg = ex.Message;
return(false);
}
}
