public ActionResult SelectFeature(SelectInputModel input) { MgSiteConnection conn = CreateConnection(input); MgMap map = new MgMap(conn); map.Open(input.MapName); MgLayerCollection layers = map.GetLayers(); int lidx = layers.IndexOf("Parcels"); if (lidx < 0) { throw new Exception("Layer not found on map: Parcels"); } MgLayerBase layer = layers[lidx]; MgClassDefinition clsDef = layer.GetClassDefinition(); MgPropertyDefinitionCollection props = clsDef.GetProperties(); MgPropertyDefinition idProp = props[0]; string idPropName = idProp.Name; MgFeatureQueryOptions query = new MgFeatureQueryOptions(); query.SetFilter(idPropName + " = " + input.id); MgFeatureReader reader = layer.SelectFeatures(query); MgSelection selection = new MgSelection(map, ""); MgResourceService resSvc = (MgResourceService)conn.CreateService(MgServiceType.ResourceService); string result = ""; try { selection.Open(resSvc, input.MapName); selection.FromXml(""); //Clear existing selection.AddFeatures(layer, reader, 0); result = selection.ToXml(); } finally { reader.Close(); } return(Content(result, MgMimeType.Xml)); }
public override Stream RenderDynamicOverlay(RuntimeMap map, MapSelection selection, string format, bool keepSelection) { MgRenderingService rnd = this.Connection.CreateService(MgServiceType.RenderingService) as MgRenderingService; MgResourceService res = this.Connection.CreateService(MgServiceType.ResourceService) as MgResourceService; GetByteReaderMethod fetch = () => { MgMap mmap = new MgMap(); mmap.Open(res, map.Name); MgSelection sel = new MgSelection(mmap); if (selection != null) sel.FromXml(selection.ToXml()); return rnd.RenderDynamicOverlay(mmap, sel, format, keepSelection); }; LogMethodCall("MgRenderingService::RenderDynamicOverlay", true, "MgMap", "MgSelection", format, keepSelection.ToString()); return new MgReadOnlyStream(fetch); }
public override Stream RenderDynamicOverlay(RuntimeMap map, MapSelection selection, string format, Color selectionColor, int behaviour) { MgRenderingService rnd = this.Connection.CreateService(MgServiceType.RenderingService) as MgRenderingService; MgResourceService res = this.Connection.CreateService(MgServiceType.ResourceService) as MgResourceService; MgMap mmap = new MgMap(); mmap.Open(res, map.Name); MgSelection sel = new MgSelection(mmap); if (selection != null) sel.FromXml(selection.ToXml()); var rndOpts = new MgRenderingOptions(format, behaviour, new MgColor(selectionColor)); GetByteReaderMethod fetch = () => { return rnd.RenderDynamicOverlay(mmap, sel, rndOpts); }; LogMethodCall("MgRenderingService::RenderDynamicOverlay", true, "MgMap", "MgSelection", "MgRenderingOptions"); return new MgReadOnlyStream(fetch); }
public IActionResult SelectFeature(SelectInputModel input) { MgSiteConnection conn = CreateConnection(input); MgMap map = new MgMap(conn); map.Open(input.MapName); MgLayerCollection layers = map.GetLayers(); int lidx = layers.IndexOf("Parcels"); if (lidx < 0) { throw new Exception("Layer not found on map: Parcels"); } MgLayerBase layer = layers.GetItem(lidx); MgClassDefinition clsDef = layer.GetClassDefinition(); MgPropertyDefinitionCollection props = clsDef.GetProperties(); MgPropertyDefinition idProp = props.GetItem(0); string idPropName = idProp.Name; MgFeatureQueryOptions query = new MgFeatureQueryOptions(); query.SetFilter(idPropName + " = " + input.id); MgFeatureReader reader = layer.SelectFeatures(query); MgSelection selection = new MgSelection(map, ""); MgResourceService resSvc = (MgResourceService)conn.CreateService(MgServiceType.ResourceService); string result = ""; try { selection.Open(resSvc, input.MapName); selection.FromXml(""); //Clear existing selection.AddFeatures(layer, reader, 0); result = selection.ToXml(); selection.Save(resSvc); } finally { reader.Close(); } return Content(result, MgMimeType.Xml); }
MgGeometry MultiGeometryFromSelection(MgFeatureService featureSrvc, MgMap map, String selText) { MgSelection sel = new MgSelection(map); sel.FromXml(selText); MgReadOnlyLayerCollection selLayers = sel.GetLayers(); if (selLayers == null) return null; MgGeometryCollection geomColl = new MgGeometryCollection(); MgAgfReaderWriter agfRW = new MgAgfReaderWriter(); bool polyOnly = true; for (int i = 0; i < selLayers.GetCount(); i++) { MgLayer layer = (MgLayer)selLayers.GetItem(i); // TODO: How to get selectionSize? //int selectionSize = 20; string filter = sel.GenerateFilter(layer, layer.GetFeatureClassName()); if (filter == "") continue; MgFeatureQueryOptions query = new MgFeatureQueryOptions(); query.SetFilter(filter); MgResourceIdentifier featureSource = new MgResourceIdentifier(layer.GetFeatureSourceId()); MgFeatureReader features = featureSrvc.SelectFeatures(featureSource, layer.GetFeatureClassName(), query); if (features != null) { MgClassDefinition classDef = features.GetClassDefinition(); String geomPropName = classDef.GetDefaultGeometryPropertyName(); int j = 0; //bool isPoly = true; while (features.ReadNext()) { MgByteReader geomReader = features.GetGeometry(geomPropName); MgGeometry geom = agfRW.Read(geomReader); if (j++ == 0) { int type = geom.GetGeometryType(); if (type == MgGeometryType.MultiPolygon || type == MgGeometryType.CurvePolygon || type == MgGeometryType.MultiCurvePolygon) { //isPoly = false; polyOnly = false; } else if (type != MgGeometryType.Polygon) { break; } } geomColl.Add(geom); } features.Close(); features.Dispose(); } } if (geomColl.GetCount() == 0) { return null; } MgGeometryFactory gf = new MgGeometryFactory(); if (polyOnly) { MgPolygonCollection polyColl = new MgPolygonCollection(); for (int j = 0; j < geomColl.GetCount(); j++) { polyColl.Add((MgPolygon)geomColl.GetItem(j)); } return gf.CreateMultiPolygon(polyColl); } else { return gf.CreateMultiGeometry(geomColl); } }
MgGeometry MultiGeometryFromSelection(MgFeatureService featureSrvc, MgMap map, String selText) { MgSelection sel = new MgSelection(map); sel.FromXml(selText); MgReadOnlyLayerCollection selLayers = sel.GetLayers(); if (selLayers == null) { return(null); } MgGeometryCollection geomColl = new MgGeometryCollection(); MgAgfReaderWriter agfRW = new MgAgfReaderWriter(); bool polyOnly = true; for (int i = 0; i < selLayers.GetCount(); i++) { MgLayer layer = (MgLayer)selLayers.GetItem(i); // TODO: How to get selectionSize? //int selectionSize = 20; string filter = sel.GenerateFilter(layer, layer.GetFeatureClassName()); if (filter == "") { continue; } MgFeatureQueryOptions query = new MgFeatureQueryOptions(); query.SetFilter(filter); MgResourceIdentifier featureSource = new MgResourceIdentifier(layer.GetFeatureSourceId()); MgFeatureReader features = featureSrvc.SelectFeatures(featureSource, layer.GetFeatureClassName(), query); if (features != null) { MgClassDefinition classDef = features.GetClassDefinition(); String geomPropName = classDef.GetDefaultGeometryPropertyName(); int j = 0; //bool isPoly = true; while (features.ReadNext()) { MgByteReader geomReader = features.GetGeometry(geomPropName); MgGeometry geom = agfRW.Read(geomReader); if (j++ == 0) { int type = geom.GetGeometryType(); if (type == MgGeometryType.MultiPolygon || type == MgGeometryType.CurvePolygon || type == MgGeometryType.MultiCurvePolygon) { //isPoly = false; polyOnly = false; } else if (type != MgGeometryType.Polygon) { break; } } geomColl.Add(geom); } features.Close(); features.Dispose(); } } if (geomColl.GetCount() == 0) { return(null); } MgGeometryFactory gf = new MgGeometryFactory(); if (polyOnly) { MgPolygonCollection polyColl = new MgPolygonCollection(); for (int j = 0; j < geomColl.GetCount(); j++) { polyColl.Add((MgPolygon)geomColl.GetItem(j)); } return(gf.CreateMultiPolygon(polyColl)); } else { return(gf.CreateMultiGeometry(geomColl)); } }