/// <summary> /// Creates a FeatureCollection from a list of OGC layers within a ViewContext /// </summary> public FeatureCollection(ViewContext context, StringDictionary parameters) { string srs = string.Empty; GeospatialServices.Ogc.Wmc.BoundingBox mapBbox = null; double mapScale = 0; int featureCount = int.MaxValue; if (parameters[OgcParameters.Service] == GeospatialServices.Ogc.Common.ServiceNames.WFS.ToString()) { if (parameters[WfsParameters.SrsName] != null) { srs = parameters[WfsParameters.SrsName]; } if (parameters[WmsParameters.Bbox] != null) { mapBbox = new GeospatialServices.Ogc.Wmc.BoundingBox(parameters[WmsParameters.Bbox], OgcUtilities.GetSridFromCrs(srs)); } if (parameters[WfsParameters.MaxFeatures] != null) { featureCount = int.Parse(parameters[WfsParameters.MaxFeatures]); } } else // WMS { //if (parameters[WmsParameters.Crs] != null) //{ // srs = parameters[WmsParameters.Crs]; //} //if (parameters[WmsParameters.I] != null && parameters[WmsParameters.J] != null) //{ // float x = float.Parse(parameters[WmsParameters.I]); // float y = float.Parse(parameters[WmsParameters.J]); // SharpMapLib.Map map = new SharpMapLib.Map(new System.Drawing.Size(int.Parse(parameters[WmsParameters.Width]), int.Parse(parameters[WmsParameters.Height]))); // SharpMapGeometries.BoundingBox tempBbox = SharpMapWeb.Wms.WmsServer.ParseBBOX(parameters[WmsParameters.Bbox]); // map.ZoomToBox(tempBbox); // // Calculate the Map Scale for filtering out layers that are not visible // // in the current map scale // mapScale = map.Zoom * (6378137 * 2 * Math.PI) / (map.Size.Width * 0.00028 * 360); // // Keep a dictionary of queried layer groups and associated bounding boxes // // after adjusting for the layer group buffers passed in // if (parameters[Sdi.Ogc.Common.OgcExtendedParameters.Buffers] != null) // { // int buffer = 0; // layerGroupBboxs = new Dictionary<string, SharpMapGeometries.BoundingBox>(); // string[] queryLayerGroups = parameters[WmsParameters.QueryLayers].Split(new char[] { ',' }); // string[] buffers = parameters[OgcExtendedParameters.Buffers].Split(new char[] { ',' }); // for (int i = 0; i < queryLayerGroups.Length; i++) // { // if (int.TryParse(buffers[i], out buffer)) // { // tempBbox = new global::SharpMap.Geometries.BoundingBox(map.ImageToWorld(new System.Drawing.PointF(x - buffer, y + buffer)), map.ImageToWorld(new System.Drawing.PointF(x + buffer, y - buffer))); // layerGroupBboxs.Add(queryLayerGroups[i], tempBbox); // } // } // } //} if (parameters[WmsParameters.FeatureCount] != null) { featureCount = int.Parse(parameters[WmsParameters.FeatureCount]); } } if (mapBbox == null) { if (context.General.BoundingBox != null) { mapBbox = context.General.BoundingBox; } else { throw new WmsFault(WmsExceptionCode.InvalidFormat, "Bounding box not found"); } } //bool excludeGmlFeatures = (!String.IsNullOrEmpty(parameters[OgcExtendedParameters.ExcludeGmlFeatures]) && // parameters[OgcExtendedParameters.ExcludeGmlFeatures].ToLowerInvariant() == "true") ? true : false; bool excludeGmlFeatures = false; foreach (GeospatialServices.Ogc.Wmc.Layer wmcLayer in context.Layers) { if (mapScale != 0) { // The layer is not visible at this map scale // if (wmsLayer.MinScaleDenominatorSpecified && mapScale < wmsLayer.MinScaleDenominator) // continue; // if (wmsLayer.MaxScaleDenominatorSpecified && mapScale >= wmsLayer.MaxScaleDenominator) // continue; } Feature feature = null; XmlDocument document = new XmlDocument(); XmlElement element = null; XmlNode node = null; XmlAttribute attribute = null; FeatureDataRow featureDataRow = null; GeospatialServices.Runtime.FeatureDataSet featureDataSet = new GeospatialServices.Runtime.FeatureDataSet(); wmcLayer.ExecuteSpatialQuery(mapBbox.ToSqlGeometry, featureDataSet); if (featureDataSet != null) { XmlSerializerNamespaces namespaces = new XmlSerializerNamespaces(); namespaces.Add(Declarations.Wfs110Prefix, Declarations.Wfs110NameSpace); namespaces.Add(Declarations.DefaultPrefix, Declarations.DefaultNameSpace); namespaces.Add(Declarations.WmsPrefix, Declarations.WmsNameSpace); namespaces.Add(Declarations.OgcPrefix, Declarations.OgcNameSpace); namespaces.Add(Declarations.GmlPrefix, Declarations.GmlNameSpace); namespaces.Add(Declarations.GmlSfPrefix, Declarations.GmlSfNameSpace); namespaces.Add(Declarations.XlinkPrefix, Declarations.XlinkNameSpace); XmlSerializer serializer = new XmlSerializer(typeof(SfGeometry), Declarations.GmlSfNameSpace); SfGeometry sfGeometry = null; AbstractGML gml = null; MemoryStream stream = null; XmlDocument featueDocument = null; string featureNameElement = wmcLayer.Name; int totalFeatures = 0; if (featureDataSet.Tables.Count > 0) { totalFeatures = Math.Min(featureDataSet.Tables[0].Count, featureCount); } for (int i = 0; i < totalFeatures; i++) { featureDataRow = featureDataSet.Tables[0][i]; feature = new Feature(); this.FeatureMemberList.Add(feature); element = document.CreateElement(Declarations.GmlSfPrefix, featureNameElement, Declarations.GmlSfNameSpace); feature.ElementList.Add(element); attribute = document.CreateAttribute(Declarations.GmlPrefix, "id", Declarations.GmlNameSpace); element.Attributes.Append(attribute); attribute.Value = "id" + Guid.NewGuid().ToString(); //TODO: not correct, guids should be 'static' // add the attributes foreach (DataColumn featureDataColumn in featureDataSet.Tables[0].Columns) { node = document.CreateNode(XmlNodeType.Element, Declarations.GmlSfPrefix, featureDataColumn.ColumnName, Declarations.GmlSfNameSpace); element.AppendChild(node); node.InnerText = featureDataRow[featureDataColumn.ColumnName].ToString().Trim(); } // add the layer Title node = document.CreateNode(XmlNodeType.Element, Declarations.GmlSfPrefix, "LayerTitle", Declarations.GmlSfNameSpace); element.AppendChild(node); node.InnerText = wmcLayer.Title; // only include the gml features if requested if (!excludeGmlFeatures) { node = document.CreateNode(XmlNodeType.Element, Declarations.GmlSfPrefix, "sfElement", Declarations.GmlSfNameSpace); element.AppendChild(node); gml = AbstractGML.GetFromSqlGeometry(featureDataRow.Geometry); sfGeometry = new SfGeometry(gml); stream = new MemoryStream(); serializer.Serialize(stream, sfGeometry, namespaces); stream.Position = 0; featueDocument = new XmlDocument(); featueDocument.Load(stream); node.InnerXml = featueDocument.DocumentElement.InnerXml; } } } } }
public SfGeometry(AbstractGML item) { _Item = item; }
public static AbstractGML GetFromSqlGeometry(SqlGeometry geometry) { AbstractGML gmlGeometry = null; string geomType = (string)geometry.STGeometryType(); switch (geomType) { case "Point": { GeospatialServices.Ogc.Wms.GmlSf.Point gmlPoint = GetGmlSfPoint(geometry); gmlGeometry = gmlPoint; } break; case "LineString": { GeospatialServices.Ogc.Wms.GmlSf.Curve gmlCurve = GetGmlSfCurve(geometry); gmlGeometry = gmlCurve; } break; case "Polygon": { GeospatialServices.Ogc.Wms.GmlSf.Surface gmlSurface = GetGmlSfSurface(geometry); gmlGeometry = gmlSurface; } break; case "MultiPoint": { GeospatialServices.Ogc.Wms.GmlSf.MultiPoint gmlMultiPoint = GetGmlSfMultiPoint(geometry); gmlGeometry = gmlMultiPoint; } break; case "MultiLineString": { GeospatialServices.Ogc.Wms.GmlSf.MultiCurve gmlMultiCurve = GetGmlSfMultiCurve(geometry); gmlGeometry = gmlMultiCurve; } break; case "MultiPolygon": { GeospatialServices.Ogc.Wms.GmlSf.MultiSurface gmlMultiSurface = GetGmlSfMultiSurface(geometry); gmlGeometry = gmlMultiSurface; } break; case "GeometryCollection": { GeospatialServices.Ogc.Wms.GmlSf.MultiGeometry gmlMultiGeometry = new GeospatialServices.Ogc.Wms.GmlSf.MultiGeometry(); GeospatialServices.Ogc.Wms.GmlSf.MultiSurface gmlMultiSurface = null; GeospatialServices.Ogc.Wms.GmlSf.MultiPoint gmlMultiPoint = null; GeospatialServices.Ogc.Wms.GmlSf.MultiCurve gmlMultiCurve = null; GeospatialServices.Ogc.Wms.GmlSf.Surface gmlSurface = null; GeospatialServices.Ogc.Wms.GmlSf.Point gmlPoint = null; GeospatialServices.Ogc.Wms.GmlSf.Curve gmlCurve = null; GeospatialServices.Ogc.Wms.GmlSf.AbstractGeometricAggregate gmlAbstractGeometricAggregate = null; for (int i = 1; i <= geometry.STNumGeometries(); i++) { if (geometry.STGeometryN(i).STGeometryType() == "Point") { if (gmlMultiPoint == null) { gmlMultiPoint = new GeospatialServices.Ogc.Wms.GmlSf.MultiPoint(); gmlMultiGeometry.MultiGeometryMemberList.Add(new MultiGeometryProperty(gmlMultiPoint)); } gmlPoint = GetGmlSfPoint(geometry.STGeometryN(i)); gmlMultiPoint.PointMemberList.Add(new PointProperty(gmlPoint)); } if (geometry.STGeometryN(i).STGeometryType() == "LineString") { if (gmlMultiCurve == null) { gmlMultiCurve = new GeospatialServices.Ogc.Wms.GmlSf.MultiCurve(); gmlMultiGeometry.MultiGeometryMemberList.Add(new MultiGeometryProperty(gmlMultiCurve)); } gmlCurve = GetGmlSfCurve(geometry.STGeometryN(i)); gmlMultiCurve.CurveMemberList.Add(new CurveProperty(gmlCurve)); } else if (geometry.STGeometryN(i).STGeometryType() == "Polygon") { if (gmlMultiSurface == null) { gmlMultiSurface = new GeospatialServices.Ogc.Wms.GmlSf.MultiSurface(); gmlMultiGeometry.MultiGeometryMemberList.Add(new MultiGeometryProperty(gmlMultiSurface)); } gmlSurface = GetGmlSfSurface(geometry.STGeometryN(i)); gmlMultiSurface.SurfaceMemberList.Add(new SurfaceProperty(gmlSurface)); } else // MultiPoint, MultiLineString, Multipolygon, GeometricCollection { gmlAbstractGeometricAggregate = (GeospatialServices.Ogc.Wms.GmlSf.AbstractGeometricAggregate)GetFromSqlGeometry(geometry.STGeometryN(i)); gmlMultiGeometry.MultiGeometryMemberList.Add(new MultiGeometryProperty(gmlAbstractGeometricAggregate)); } } gmlGeometry = gmlMultiGeometry; } break; } return(gmlGeometry); }