示例#1
0
        public override Task <IFeature> NextFeature()
        {
            while (true)
            {
                if (_features == null || _pos >= _features.Count)
                {
                    return(Task.FromResult <IFeature>(null));
                }

                XmlNode featureNode = _features[_pos++];

                Feature feature = new Feature();
                if (featureNode.Attributes["fid"] != null)
                {
                    feature.OID = XML.Globals.IntegerFeatureID(featureNode.Attributes["fid"].Value);
                }
                foreach (XmlNode fieldNode in featureNode.SelectNodes("myns:*", _ns))
                {
                    string fieldName = fieldNode.Name.Split(':')[1];

                    if (fieldName == _fc.ShapeFieldName.Replace("#", ""))
                    {
                        feature.Shape = GeometryTranslator.GML2Geometry(fieldNode.InnerXml, _gmlVersion);
                    }
                    else
                    {
                        FieldValue fv = new FieldValue(fieldName, fieldNode.InnerText);
                        feature.Fields.Add(fv);

                        try
                        {
                            if (fieldName == _fc.IDFieldName)
                            {
                                feature.OID = Convert.ToInt32(fieldNode.InnerText);
                            }
                        }
                        catch { }
                    }
                }

                if (feature.Shape == null)
                {
                    foreach (XmlNode gmlNode in featureNode.SelectNodes("GML:*", _ns))
                    {
                        feature.Shape = GeometryTranslator.GML2Geometry(gmlNode.OuterXml, _gmlVersion);
                        if (feature.Shape != null)
                        {
                            break;
                        }
                    }
                }

                if (feature.Shape != null &&
                    _filter is ISpatialFilter &&
                    _checkGeometryRelation)
                {
                    if (!SpatialRelation.Check(_filter as ISpatialFilter, feature.Shape))
                    {
                        continue;
                    }
                }

                Transform(feature);
                return(Task.FromResult <IFeature>(feature));
            }
        }
示例#2
0
        public override Task <IFeature> NextFeature()
        {
            while (true)
            {
                if (_reader == null)
                {
                    return(Task.FromResult <IFeature>(null));
                }

                if (!_reader.ReadToFollowing(_fc.Name, _ns.LookupNamespace("myns")))
                {
                    return(Task.FromResult <IFeature>(null));
                }

                string featureString = _reader.ReadOuterXml();

                XmlDocument doc = new XmlDocument();
                doc.LoadXml(featureString);
                XmlNode featureNode = doc.ChildNodes[0];

                Feature feature = new Feature();
                if (featureNode.Attributes["fid"] != null)
                {
                    feature.OID = XML.Globals.IntegerFeatureID(featureNode.Attributes["fid"].Value);
                }
                foreach (XmlNode fieldNode in featureNode.SelectNodes("myns:*", _ns))
                {
                    string fieldName = fieldNode.Name.Split(':')[1];

                    if (fieldName == _fc.ShapeFieldName.Replace("#", ""))
                    {
                        feature.Shape = GeometryTranslator.GML2Geometry(fieldNode.InnerXml, _gmlVersion);
                    }
                    else
                    {
                        FieldValue fv = new FieldValue(fieldName, fieldNode.InnerText);
                        feature.Fields.Add(fv);

                        try
                        {
                            if (fieldName == _fc.IDFieldName)
                            {
                                feature.OID = Convert.ToInt32(fieldNode.InnerText);
                            }
                        }
                        catch { }
                    }
                }

                if (feature.Shape == null)
                {
                    foreach (XmlNode gmlNode in featureNode.SelectNodes("GML:*", _ns))
                    {
                        feature.Shape = GeometryTranslator.GML2Geometry(gmlNode.OuterXml, _gmlVersion);
                        if (feature.Shape != null)
                        {
                            break;
                        }
                    }
                }

                if (feature.Shape != null &&
                    _filter is ISpatialFilter &&
                    _checkGeometryRelation)
                {
                    if (!SpatialRelation.Check(_filter as ISpatialFilter, feature.Shape))
                    {
                        continue;
                    }
                }

                Transform(feature);
                return(Task.FromResult <IFeature>(feature));
            }
        }