public LocalNativeSqlReader(MgSqlDataReader reader) { _reader = reader; _mgReader = new FixedWKTReader(); _agfRw = new MgAgfReaderWriter(); _wktRw = new MgWktReaderWriter(); }
public SpatialContextResultDialog(MgSpatialContextReader reader) : this() { _reader = reader; _wktRW = new MgWktReaderWriter(); _agfRW = new MgAgfReaderWriter(); StringBuilder sb = new StringBuilder(); while (_reader.ReadNext()) { MgGeometry geom = null; if (_reader.ExtentType == MgSpatialContextExtentType.scStatic) { geom = _agfRW.Read(_reader.Extent); } sb.AppendFormat("Spatial Context{0}\tName: {1}{0}\tDescription: {2}{0}\tCoordinate System: {3}{0}\tCoordinate System Wkt: {4}{0}\tExtent Type {5}{0}\tExtents (if applicable): {6}{0}\tXY Tolerance: {7}{0}\tZ Tolerance: {8}{0}\tIs Active: {9}{0}{0}", Environment.NewLine, _reader.Name, _reader.Description, _reader.CoordinateSystem, _reader.CoordinateSystemWkt, _reader.ExtentType == MgSpatialContextExtentType.scDynamic ? "Dynamic" : "Static", geom != null ? _wktRW.Write(geom) : "N/A", _reader.XYTolerance, _reader.ZTolerance, _reader.IsActive()); } textBox1.Text = sb.ToString(); _reader.Close(); }
//---------------------------------------------------------------------------------------- // �� �ܣ� ��Mapguide���ص�����ת��ΪKML // // �� �ߣ� // // // �� �ڣ�2007.05.# // //----------------------------------------------------------------------------------------- public String createMuniMarker() { StringBuilder outString = new StringBuilder(); MgGeometryFactory geoFactory = new MgGeometryFactory(); outString.Append("<?xml version=\"1.0\" encoding=\"UTF-8\"?>"); MgFeatureService featureService = (MgFeatureService)siteConnection.CreateService(MgServiceType.FeatureService); MgResourceIdentifier resId = new MgResourceIdentifier("Library://MgTutorial/Data/WheatonMunicipalities.FeatureSource"); MgFeatureReader featureReader = featureService.SelectFeatures(resId, "WheatonMunicipalities", null); outString.Append("<markers>"); MgAgfReaderWriter geoReader = new MgAgfReaderWriter(); while (featureReader.ReadNext()) { String muniName = featureReader.GetString("MUNINAME"); MgByteReader byteReader = featureReader.GetGeometry("Geometry"); MgGeometry geo = geoReader.Read(byteReader); MgPoint pt = geo.GetCentroid(); double x = pt.GetCoordinate().GetX(); double y = pt.GetCoordinate().GetY(); outString.Append("<marker lat=\"" + y + "\" lng=\"" + x + "\" info=\"" + muniName + "\" />"); } featureReader.Close(); outString.Append("</markers>"); return outString.ToString(); }
public SpatialContextResultDialog(MgSpatialContextReader reader) : this() { _reader = reader; _wktRW = new MgWktReaderWriter(); _agfRW= new MgAgfReaderWriter(); StringBuilder sb = new StringBuilder(); while (_reader.ReadNext()) { MgGeometry geom = null; if (_reader.ExtentType == MgSpatialContextExtentType.scStatic) { geom = _agfRW.Read(_reader.Extent); } sb.AppendFormat("Spatial Context{0}\tName: {1}{0}\tDescription: {2}{0}\tCoordinate System: {3}{0}\tCoordinate System Wkt: {4}{0}\tExtent Type {5}{0}\tExtents (if applicable): {6}{0}\tXY Tolerance: {7}{0}\tZ Tolerance: {8}{0}\tIs Active: {9}{0}{0}", Environment.NewLine, _reader.Name, _reader.Description, _reader.CoordinateSystem, _reader.CoordinateSystemWkt, _reader.ExtentType == MgSpatialContextExtentType.scDynamic ? "Dynamic" : "Static", geom != null ? _wktRW.Write(geom) : "N/A", _reader.XYTolerance, _reader.ZTolerance, _reader.IsActive()); } textBox1.Text = sb.ToString(); _reader.Close(); }
protected override void Dispose(bool disposing) { if (disposing) { Close(); if (_agfRw != null) { try { _agfRw.Dispose(); } catch (MgException ex) { ex.Dispose(); } _agfRw = null; } if (_wktRw != null) { try { _wktRw.Dispose(); } catch (MgException ex) { ex.Dispose(); } _wktRw = null; } } base.Dispose(disposing); }
public LocalNativeDataReader(MgDataReader reader) { _reader = reader; _mgReader = new FixedWKTReader(); _agfRw = new MgAgfReaderWriter(); _wktRw = new MgWktReaderWriter(); }
public LocalNativeFeatureReader(MgFeatureReader reader) { _reader = reader; _mgReader = new FixedWKTReader(); _agfRw = new MgAgfReaderWriter(); _wktRw = new MgWktReaderWriter(); base.ClassDefinition = Utility.ConvertClassDefinition(reader.GetClassDefinition()); base.FieldCount = reader.GetPropertyCount(); }
private void btnSelectDistrict1_Click(object sender, EventArgs e) { MgMapBase map = _viewer.GetMap(); MgLayerCollection layers = map.GetLayers(); MgLayerBase districts = layers.GetItem("Districts"); MgLayerBase parcels = layers.GetItem("Parcels"); //Query the geometry of district 1 MgFeatureQueryOptions districtQuery = new MgFeatureQueryOptions(); districtQuery.SetFilter("Autogenerated_SDF_ID = 1"); MgFeatureReader reader = districts.SelectFeatures(districtQuery); MgGeometry districtGeom = null; MgAgfReaderWriter agfRw = new MgAgfReaderWriter(); try { reader.ReadNext(); MgByteReader geomAgf = reader.GetGeometry(districts.GetFeatureGeometryName()); districtGeom = agfRw.Read(geomAgf); } finally { reader.Close(); } //Now use this geometry as the basis of our 2nd query MgFeatureQueryOptions parcelQuery = new MgFeatureQueryOptions(); parcelQuery.SetFilter("RNAME LIKE 'SCHMITT%'"); parcelQuery.SetSpatialFilter(parcels.GetFeatureGeometryName(), districtGeom, MgFeatureSpatialOperations.Inside); //Select the features reader = parcels.SelectFeatures(parcelQuery); MgSelectionBase selection = _viewer.GetSelection(); try { selection.FromXml(""); //Clear existing selection data selection.AddFeatures(parcels, reader, 0); } finally { reader.Close(); } //Because we manipulated the active selection outside the viewer //We need to call UpdateSelection() to instruct the viewer to //re-render the active selection. The "true" parameter instructs //the viewer to raise the SelectionChanged event as well, so that //subscribers like the Property Pane get updated as well. _viewer.UpdateSelection(true); _viewer.RefreshMap(); }
public LocalNativeFeatureReader(MgFeatureReader reader) { _reader = reader; _mgReader = new FixedWKTReader(); _agfRw = new MgAgfReaderWriter(); _wktRw = new MgWktReaderWriter(); base.ClassDefinition = Utility.ConvertClassDefinition(reader.GetClassDefinition()); base.FieldCount = reader.GetPropertyCount(); }
void OnDisposed(object sender, EventArgs e) { if (_agfRw != null) { _agfRw.Dispose(); } _agfRw = null; }
public RedlineEditor(IMapViewer viewer, RedlineLayer layer) { _viewer = viewer; _layer = layer; var provider = viewer.GetProvider(); _featSvc = (MgFeatureService)provider.CreateService(MgServiceType.FeatureService); _wktRW = new MgWktReaderWriter(); _agfRW = new MgAgfReaderWriter(); _geomFact = new MgGeometryFactory(); }
public static void AddPointFeature(string FeatureName, MgPropertyCollection featureProps, MgPoint geom, MgFeatureService featureSrvc, MgResourceIdentifier dataSourceId) { MgByteReader geomReader = new MgAgfReaderWriter().Write(geom); MgGeometryProperty geometryProp = new MgGeometryProperty("GEOM", geomReader); featureProps.Add(geometryProp); MgInsertFeatures cmd = new MgInsertFeatures(FeatureName, featureProps); MgFeatureCommandCollection commands = new MgFeatureCommandCollection(); commands.Add(cmd); ReleaseReader(featureSrvc.UpdateFeatures(dataSourceId, commands, false)); }
private void btnQueryDistrict1_Click(object sender, EventArgs e) { MgMapBase map = _viewer.GetMap(); MgLayerCollection layers = map.GetLayers(); MgLayerBase districts = layers.GetItem("Districts"); MgLayerBase parcels = layers.GetItem("Parcels"); //Query the geometry of district 1 MgFeatureQueryOptions districtQuery = new MgFeatureQueryOptions(); districtQuery.SetFilter("Autogenerated_SDF_ID = 1"); MgFeatureReader reader = districts.SelectFeatures(districtQuery); MgGeometry districtGeom = null; MgAgfReaderWriter agfRw = new MgAgfReaderWriter(); try { reader.ReadNext(); MgByteReader geomAgf = reader.GetGeometry(districts.GetFeatureGeometryName()); districtGeom = agfRw.Read(geomAgf); } finally { reader.Close(); } //Now use this geometry as the basis of our 2nd query MgFeatureQueryOptions parcelQuery = new MgFeatureQueryOptions(); parcelQuery.SetFilter("RNAME LIKE 'SCHMITT%'"); parcelQuery.SetSpatialFilter(parcels.GetFeatureGeometryName(), districtGeom, MgFeatureSpatialOperations.Inside); //Select the features reader = parcels.SelectFeatures(parcelQuery); List <string> results = new List <string>(); try { while (reader.ReadNext()) { if (!reader.IsNull("RPROPAD")) { results.Add(reader.GetString("RPROPAD")); } } } finally { reader.Close(); } new ParcelQueryResultWindow(results).ShowDialog(); }
public void AddBuffer() { MgMap map = new MgMap(); map.Open(_resourceService, GetParameter(this.args, "MAPNAME")); MgSelection selection = new MgSelection(map); selection.Open(_resourceService, map.Name); MgReadOnlyLayerCollection layers = selection.GetLayers(); if (layers != null && layers.Count == 1) { MgFeatureQueryOptions opt = new MgFeatureQueryOptions(); opt.SetFilter(selection.GenerateFilter(layers[0], layers[0].FeatureClassName)); MgFeatureReader featureReader = _featureService.SelectFeatures(new MgResourceIdentifier(layers[0].FeatureSourceId), layers[0].FeatureClassName, opt); MgAgfReaderWriter agfRW = new MgAgfReaderWriter(); MgGeometryCollection inputGeometries = new MgGeometryCollection(); MgClassDefinition classDef = _featureService.GetClassDefinition( new MgResourceIdentifier(layers[0].FeatureSourceId), layers[0].FeatureClassName.Split(':')[0], layers[0].FeatureClassName.Split(':')[1]); while (featureReader.ReadNext()) { MgByteReader byteReader = featureReader.GetGeometry(classDef.DefaultGeometryPropertyName); MgGeometry geom = agfRW.Read(byteReader); inputGeometries.Add(geom); } if (inputGeometries.Count > 0) { MgCoordinateSystemFactory coordSysFactory = new MgCoordinateSystemFactory(); MgCoordinateSystem mapSrs = coordSysFactory.Create(map.MapSRS); double distance = mapSrs.ConvertMetersToCoordinateSystemUnits(7.0); MgCoordinateSystemMeasure measure = mapSrs.GetMeasure(); MgGeometryFactory geomFactory = new MgGeometryFactory(); MgGeometry buffer = geomFactory.CreateMultiGeometry(inputGeometries).Buffer(distance, measure); if (buffer != null) { MgByteReader byteReader = agfRW.Write(buffer); MgGeometryFactory geometryFactory = new MgGeometryFactory(); MgAgfReaderWriter agfWriter = new MgAgfReaderWriter(); MgPropertyCollection propertyValues = CreatePropertyCollection(byteReader); this.InsertMarkupFeature(propertyValues); } } } }
public RedlineEditor(IMapViewer viewer, RedlineLayer layer) { _viewer = viewer; _layer = layer; var provider = viewer.GetProvider(); _featSvc = (MgFeatureService)provider.CreateService(MgServiceType.FeatureService); _wktRW = new MgWktReaderWriter(); _agfRW = new MgAgfReaderWriter(); _geomFact = new MgGeometryFactory(); }
/// <summary> /// Установка зумирования и активной выборки (запуск через командную строку - отсюда название) /// </summary> /// <param name="sel_base">выборка, которую следует отобразить</param> internal static void ThroughAssZoomAndSelection(MgSelectionBase sel_base) { internal_saved_selection = AcMapFeatureEntityService.AddFeaturesToSelectionSet(null, sel_base); // преобразование в SelectionSet и обратно, sel_base = AcMapFeatureEntityService.GetSelection(internal_saved_selection); // иначе дает сбой метод GetSelectedFeatures() MgEnvelope extents = new MgEnvelope(); MgReadOnlyLayerCollection layers = sel_base.GetLayers(); foreach (MgLayerBase layer in layers) { MgFeatureReader ftr_reader = sel_base.GetSelectedFeatures(layer, layer.FeatureClassName, false); string geom_prop_name = ftr_reader.GetClassDefinition().DefaultGeometryPropertyName; while (ftr_reader.ReadNext()) { MgByteReader byte_reader = ftr_reader.GetGeometry(geom_prop_name); MgAgfReaderWriter agf_reader_writer = new MgAgfReaderWriter(); MgGeometry curr_geom = agf_reader_writer.Read(byte_reader); extents.ExpandToInclude(curr_geom.Envelope()); } } // зумирование и вызов функции выбора через командную строку Core.no_handle_selection = true; // чтобы изменение выборки не обрабатывалось string zoom_str; if ((extents.Width == 0) && (extents.Width == extents.Height)) { zoom_str = "'_zoom _c " + extents.LowerLeftCoordinate.X.ToString() + "," + extents.LowerLeftCoordinate.Y.ToString() + " "; } else { zoom_str = "'_zoom _w " + (extents.LowerLeftCoordinate.X - extents.Width / 2).ToString() + "," + (extents.LowerLeftCoordinate.Y - extents.Height / 2).ToString() + " " + (extents.UpperRightCoordinate.X + extents.Width / 2).ToString() + "," + (extents.UpperRightCoordinate.Y + extents.Height / 2).ToString(); } Core.SendStringToExecute(zoom_str + "\n" + "ThroughAssZoomAndSelectionHelperFunction\n" , true, false, false); }
private void btnQueryDistrict1_Click(object sender, EventArgs e) { MgMapBase map = _viewer.GetMap(); MgLayerCollection layers = map.GetLayers(); MgLayerBase districts = layers.GetItem("Districts"); MgLayerBase parcels = layers.GetItem("Parcels"); //Query the geometry of district 1 MgFeatureQueryOptions districtQuery = new MgFeatureQueryOptions(); districtQuery.SetFilter("Autogenerated_SDF_ID = 1"); MgFeatureReader reader = districts.SelectFeatures(districtQuery); MgGeometry districtGeom = null; MgAgfReaderWriter agfRw = new MgAgfReaderWriter(); try { reader.ReadNext(); MgByteReader geomAgf = reader.GetGeometry(districts.GetFeatureGeometryName()); districtGeom = agfRw.Read(geomAgf); } finally { reader.Close(); } //Now use this geometry as the basis of our 2nd query MgFeatureQueryOptions parcelQuery = new MgFeatureQueryOptions(); parcelQuery.SetFilter("RNAME LIKE 'SCHMITT%'"); parcelQuery.SetSpatialFilter(parcels.GetFeatureGeometryName(), districtGeom, MgFeatureSpatialOperations.Inside); //Select the features reader = parcels.SelectFeatures(parcelQuery); List<string> results = new List<string>(); try { while (reader.ReadNext()) { if (!reader.IsNull("RPROPAD")) results.Add(reader.GetString("RPROPAD")); } } finally { reader.Close(); } new ParcelQueryResultWindow(results).ShowDialog(); }
public DigitizingAndRedlining(IMapViewer viewer) { InitializeComponent(); _viewer = viewer; _geomFact = new MgGeometryFactory(); _wktRW = new MgWktReaderWriter(); _agfRW = new MgAgfReaderWriter(); this.Title = "Digitizing and Redlining"; _viewer.PropertyChanged += OnViewerPropertyChanged; MgMapBase map = _viewer.GetMap(); MgLayerCollection layers = map.GetLayers(); if (layers.IndexOf("Redline") >= 0) { _redlineLayer = (MgdLayer)layers.GetItem("Redline"); } CheckDigitizingState(); }
public DigitizingAndRedlining(IMapViewer viewer) { InitializeComponent(); _viewer = viewer; _geomFact = new MgGeometryFactory(); _wktRW = new MgWktReaderWriter(); _agfRW = new MgAgfReaderWriter(); this.Title = "Digitizing and Redlining"; _viewer.PropertyChanged += OnViewerPropertyChanged; MgMapBase map = _viewer.GetMap(); MgLayerCollection layers = map.GetLayers(); if (layers.IndexOf("Redline") >= 0) { _redlineLayer = (MgdLayer)layers.GetItem("Redline"); } CheckDigitizingState(); }
private void OnPointDrawn(double x, double y) { if (_pointLayer == null) //Our point layer doesn't exist { CreateRedlineLayer(); } //Now insert our point. This code should look familiar //to you, setting up the MgPropertyCollection for insertion MgPropertyCollection props = new MgPropertyCollection(); MgWktReaderWriter wktRw = new MgWktReaderWriter(); MgAgfReaderWriter agfRw = new MgAgfReaderWriter(); MgGeometry geom = wktRw.Read("POINT (" + x + " " + y + ")"); MgByteReader agf = agfRw.Write(geom); MgGeometryProperty geomProp = new MgGeometryProperty("Geometry", agf); props.Add(geomProp); //Here's where we differ from the official MapGuide API //instead of a monolithic UpdateFeatures() that tries to //do everything, we have individual InsertFeatures/DeleteFeatures/UpdateFeatures //methods. So here's the mg-desktop way MgFeatureReader result = _pointLayer.InsertFeatures(props); result.Close(); //Or if you have have access to the MgdLayer instance /* * MgResourceIdentifier fsId = new MgResourceIdentifier(_pointLayer.GetFeatureSourceId()); * MgServiceFactory factory = new MgServiceFactory(); * MgdFeatureService featSvc = (MgdFeatureService)factory.CreateService(MgServiceType.FeatureService); * MgFeatureReader fr = featSvc.InsertFeatures(fsId, "Default:Redline", props); * fr.Close(); */ //Now refresh to see your newly drawn point mgMapViewer1.RefreshMap(); }
public static void WellKnownText() { MgAgfReaderWriter agfReaderWriter; MgWktReaderWriter wktReaderWriter; MgPoint pt11FromText; MgPoint pt11; var pt11TextSpec = "POINT XY ( 1 1 )"; MgByteReader byteReader; string geometryAgfText; agfReaderWriter = new MgAgfReaderWriter(); wktReaderWriter = new MgWktReaderWriter(); // In the string to geometry direction: pt11FromText = wktReaderWriter.Read(pt11TextSpec) as MgPoint; byteReader = agfReaderWriter.Write(pt11FromText); // In the geometry to string direction: pt11 = (MgPoint)agfReaderWriter.Read(byteReader); geometryAgfText = wktReaderWriter.Write(pt11); // geometryAgfText now contains the text representation of the geometry }
/// <summary> /// Disposes of this instance /// </summary> public void Dispose() { if (_agfRw != null) { _agfRw.Dispose(); _agfRw = null; } foreach (var list in _features.Values) { foreach (var feat in list) { if (feat.Geometry != null) { feat.Geometry.Dispose(); feat.Geometry = null; } } } _features.Clear(); }
public void LoadResults(MgLayerBase layer, MgFeatureQueryOptions query) { MgClassDefinition clsDef = layer.GetClassDefinition(); MgPropertyDefinitionCollection idProps = clsDef.GetIdentityProperties(); MgPropertyDefinition idProp = idProps[0]; string idPropName = idProp.Name; string geomName = layer.FeatureGeometryName; MgFeatureReader reader = layer.SelectFeatures(query); MgAgfReaderWriter agfRw = new MgAgfReaderWriter(); try { while (reader.ReadNext()) { var res = new ParcelFeatureModel(); res.ID = reader.GetInt32(idPropName); res.Owner = reader.IsNull("RNAME") ? "(unknown)" : reader.GetString("RNAME"); res.Address = reader.IsNull("RPROPAD") ? "(unknown)" : reader.GetString("RPROPAD"); if (!reader.IsNull(geomName)) { MgByteReader agf = reader.GetGeometry(geomName); MgGeometry geom = agfRw.Read(agf); MgPoint center = geom.Centroid; MgCoordinate coord = center.Coordinate; res.X = coord.X; res.Y = coord.Y; } this.Results.Add(res); } } finally { reader.Close(); } }
internal MgSelectionSet(MgSelectionBase selection, MgMapViewerProvider provider) { _agfRw = new MgAgfReaderWriter(); _features = new Dictionary <string, List <MgFeature> >(); var selLayers = selection.GetLayers(); if (selLayers != null) { for (int i = 0; i < selLayers.GetCount(); i++) { var layer = selLayers.GetItem(i); var clsName = layer.GetFeatureClassName(); int selCount = selection.GetSelectedFeaturesCount(layer, clsName); if (selCount == 0) { System.Diagnostics.Trace.TraceWarning("No items in selection set for this layer (" + layer.GetName() + "). Layer shouldn't be here then"); continue; } NameValueCollection mappings = (provider != null) ? provider.GetPropertyMappings(layer) : null; _features[layer.Name] = new List <MgFeature>(); var reader = selection.GetSelectedFeatures(layer, layer.GetFeatureClassName(), false); while (reader.ReadNext()) { var feature = CreateFeatureFromReader(reader); if (mappings != null) { PerformDisplayNameSubstitution(feature, mappings); } _features[layer.Name].Add(feature); } reader.Close(); } } }
public void LoadResults(MgLayerBase layer, MgFeatureQueryOptions query) { MgClassDefinition clsDef = layer.GetClassDefinition(); MgPropertyDefinitionCollection idProps = clsDef.GetIdentityProperties(); MgPropertyDefinition idProp = idProps[0]; string idPropName = idProp.Name; string geomName = layer.FeatureGeometryName; MgFeatureReader reader = layer.SelectFeatures(query); MgAgfReaderWriter agfRw = new MgAgfReaderWriter(); try { while (reader.ReadNext()) { var res = new ParcelFeatureModel(); res.ID = reader.GetInt32(idPropName); res.Owner = reader.IsNull("RNAME") ? "(unknown)" : reader.GetString("RNAME"); res.Address = reader.IsNull("RPROPAD") ? "(unknown)" : reader.GetString("RPROPAD"); if (!reader.IsNull(geomName)) { MgByteReader agf = reader.GetGeometry(geomName); MgGeometry geom = agfRw.Read(agf); MgPoint center = geom.Centroid; MgCoordinate coord = center.Coordinate; res.X = coord.X; res.Y = coord.Y; } this.Results.Add(res); } } finally { reader.Close(); } }
private void btnCreate_Click(object sender, EventArgs e) { btnCreate.Enabled = false; try { var layerName = txtBufferLayer.Text.Trim(); if (string.IsNullOrEmpty(layerName)) { MessageBox.Show(Strings.MsgEnterNameForLayer); return; } if (lstLayers.SelectedItems.Count == 0) { MessageBox.Show(Strings.MsgIncludeLayersToBuffer); return; } var map = _viewer.GetMap(); var layers = map.GetLayers(); var provider = _viewer.GetProvider(); //From here, it's the same logic as buffer.aspx in .net MapGuide AJAX viewer MgResourceIdentifier fsId = new MgResourceIdentifier("Session:" + _sessionId + "//" + txtBufferLayer.Text + "_Buffer.FeatureSource"); //NOXLATE MgResourceIdentifier ldfId = new MgResourceIdentifier("Session:" + _sessionId + "//" + txtBufferLayer.Text + "_Buffer.LayerDefinition"); //NOXLATE MgLayerBase layer = Util.FindLayer(layers, txtBufferLayer.Text); string[] layerNames = GetLayerNames(); double distance = Convert.ToDouble(numBufferDistance.Value); MeasurementUnit bUnits = (MeasurementUnit)cmbUnits.SelectedItem; switch (bUnits) { case MeasurementUnit.Feet: distance *= 0.30480; break; case MeasurementUnit.Kilometers: distance *= 1000; break; case MeasurementUnit.Miles: distance *= 1609.35; break; } String srsDefMap = Util.GetMapSrs(map); MgCoordinateSystem srsMap = provider.GetMapCoordinateSystem(); string mapSrsUnits = ""; bool arbitraryMapSrs = (srsMap.GetType() == MgCoordinateSystemType.Arbitrary); if (arbitraryMapSrs) { mapSrsUnits = srsMap.GetUnits(); } String xtrans = String.Format("{0:x2}", ((int)(255 * Convert.ToInt32(numFillTransparency.Value) / 100))); //NOXLATE var lineColor = Util.ToHtmlColor(pnlBorderColor.BackColor); var foreColor = Util.ToHtmlColor(pnlFillColor.BackColor); var backColor = Util.ToHtmlColor(pnlFillBackColor.BackColor); String layerTempl = string.Format(Properties.Resources.AreaLayerDef, fsId.ToString(), "BufferSchema:Buffer", //NOXLATE "GEOM", //NOXLATE cmbFillPattern.SelectedItem, xtrans + foreColor, ((0 != 1 /*transparent*/) ? "ff" : "00") + backColor, //NOXLATE cmbBorderPattern.SelectedItem, numLineThickness.Value.ToString(NumberFormatInfo.InvariantInfo), lineColor ); byte[] bytes = Encoding.UTF8.GetBytes(layerTempl); MgByteSource src = new MgByteSource(bytes, bytes.Length); MgByteReader layerDefContent = src.GetReader(); _resSvc.SetResource(ldfId, layerDefContent, null); bool newBuffer = false; if (layer == null) { newBuffer = true; //Targetting a new layer. create a data source for it // MgClassDefinition classDef = new MgClassDefinition(); classDef.SetName("Buffer"); //NOXLATE classDef.SetDescription("Feature class for buffer layer"); //NOXLATE classDef.SetDefaultGeometryPropertyName("GEOM"); //NOXLATE //Set KEY property MgDataPropertyDefinition prop = new MgDataPropertyDefinition("KEY"); //NOXLATE prop.SetDataType(MgPropertyType.Int32); prop.SetAutoGeneration(true); prop.SetReadOnly(true); classDef.GetIdentityProperties().Add(prop); classDef.GetProperties().Add(prop); //Set ID property. Hold this segment ID prop = new MgDataPropertyDefinition("ID"); //NOXLATE prop.SetDataType(MgPropertyType.Int32); classDef.GetProperties().Add(prop); //Set geometry property MgGeometricPropertyDefinition geomProp = new MgGeometricPropertyDefinition("GEOM"); //NOXLATE //prop.SetGeometryTypes(MgFeatureGeometricType.mfgtSurface); //TODO use the constant when exposed geomProp.SetGeometryTypes(4); classDef.GetProperties().Add(geomProp); //Create the schema MgFeatureSchema schema = new MgFeatureSchema("BufferSchema", "Temporary buffer schema"); //NOXLATE schema.GetClasses().Add(classDef); //finally, creation of the feature source MgFileFeatureSourceParams sdfParams = new MgFileFeatureSourceParams("OSGeo.SDF", "LatLong", map.GetMapSRS(), schema); //NOXLATE _featSvc.CreateFeatureSource(fsId, sdfParams); //Add layer to map layer = provider.CreateLayer(ldfId); layer.SetName(txtBufferLayer.Text); layer.SetLegendLabel(txtBufferLayer.Text); layer.SetDisplayInLegend(true); layer.SetSelectable(true); layers.Insert(0, layer); } else { //data source already exist. clear its content // Util.ClearDataSource(_featSvc, fsId, "BufferSchema:Buffer"); //NOXLATE } var sel = _viewer.GetSelection(); var selLayers = sel.GetLayers(); MgAgfReaderWriter agfRW = new MgAgfReaderWriter(); MgGeometryCollection bufferGeometries = new MgGeometryCollection(); MgGeometry geomBuffer; MgFeatureCommandCollection commands = new MgFeatureCommandCollection(); int featId = 0; MgBatchPropertyCollection propCollection = new MgBatchPropertyCollection(); int excludedLayers = 0; MgCoordinateSystem srsDs = null; MgGeometryCollection inputGeometries = new MgGeometryCollection(); int bufferFeatures = 0; for (int li = 0; li < selLayers.GetCount(); li++) { MgLayerBase selLayer = selLayers.GetItem(li); bool inputLayer = false; String selLayerName = selLayer.GetName(); for (int il = 0; il < layerNames.Length; il++) { if (layerNames[il].Equals(selLayerName)) { inputLayer = true; break; } } if (inputLayer == false) { continue; } // get the data source SRS // MgResourceIdentifier featSourceId = new MgResourceIdentifier(selLayer.GetFeatureSourceId()); MgSpatialContextReader ctxs = _featSvc.GetSpatialContexts(featSourceId, false); String srsDefDs = string.Empty; if (ctxs != null && ctxs.ReadNext()) { srsDefDs = ctxs.GetCoordinateSystemWkt(); } if (srsDefDs == null || srsDefDs.Length == 0) { excludedLayers++; continue; } var srsFactory = new MgCoordinateSystemFactory(); srsDs = srsFactory.Create(srsDefDs); bool arbitraryDsSrs = (srsDs.GetType() == MgCoordinateSystemType.Arbitrary); String dsSrsUnits = string.Empty; if (arbitraryDsSrs) { dsSrsUnits = srsDs.GetUnits(); } // exclude layer if: // the map is non-arbitrary and the layer is arbitrary or vice-versa // or // layer and map are both arbitrary but have different units // if ((arbitraryDsSrs != arbitraryMapSrs) || (arbitraryDsSrs && (dsSrsUnits != mapSrsUnits))) { excludedLayers++; continue; } // calculate distance in the data source SRS units // double dist = srsDs.ConvertMetersToCoordinateSystemUnits(distance); // calculate great circle unless data source srs is arbitrary MgCoordinateSystemMeasure measure; if (!arbitraryDsSrs) { measure = srsDs.GetMeasure(); } else { measure = null; } // create a SRS transformer if necessary MgCoordinateSystemTransform srsXform; if (!srsDefDs.Equals(srsDefMap)) { srsXform = srsFactory.GetTransform(srsDs, srsMap); } else { srsXform = null; } String featureClassName = selLayer.GetFeatureClassName(); String filter = sel.GenerateFilter(selLayer, featureClassName); if (filter == null || filter.Length == 0) { continue; } MgFeatureQueryOptions query = new MgFeatureQueryOptions(); query.SetFilter(filter); MgResourceIdentifier featureSource = new MgResourceIdentifier(selLayer.GetFeatureSourceId()); MgFeatureReader features = _featSvc.SelectFeatures(featureSource, featureClassName, query); if (features.ReadNext()) { MgClassDefinition classDef = features.GetClassDefinition(); String geomPropName = classDef.GetDefaultGeometryPropertyName(); do { MgByteReader geomReader = features.GetGeometry(geomPropName); MgGeometry geom = agfRW.Read(geomReader); if (!chkMergeBuffers.Checked) { geomBuffer = geom.Buffer(dist, measure); if (geomBuffer != null) { if (srsXform != null) { geomBuffer = (MgGeometry)geomBuffer.Transform(srsXform); } Util.AddFeatureToCollection(propCollection, agfRW, featId++, geomBuffer); bufferFeatures++; } } else { if (srsXform != null) { geom = (MgGeometry)geom.Transform(srsXform); } inputGeometries.Add(geom); } }while (features.ReadNext()); features.Close(); } } if (chkMergeBuffers.Checked) { if (inputGeometries.GetCount() > 0) { double dist = srsMap.ConvertMetersToCoordinateSystemUnits(distance); MgCoordinateSystemMeasure measure; if (!arbitraryMapSrs) { measure = srsMap.GetMeasure(); } else { measure = null; } MgGeometryFactory geomFactory = new MgGeometryFactory(); geomBuffer = geomFactory.CreateMultiGeometry(inputGeometries).Buffer(dist, measure); if (geomBuffer != null) { Util.AddFeatureToCollection(propCollection, agfRW, featId, geomBuffer); bufferFeatures = 1; } } } if (propCollection.GetCount() > 0) { commands.Add(new MgInsertFeatures("BufferSchema:Buffer", propCollection)); //NOXLATE //Insert the features in the temporary data source // Util.ReleaseReader(_featSvc.UpdateFeatures(fsId, commands, false), commands); } // Save the new map state // layer.ForceRefresh(); _viewer.RefreshMap(); //build report message if (newBuffer) { MessageBox.Show(string.Format(Strings.MsgBufferLayerCreated, txtBufferLayer.Text)); } else { MessageBox.Show(string.Format(Strings.MsgBufferLayerUpdated, txtBufferLayer.Text)); } } finally { btnCreate.Enabled = true; } }
MgPropertyCollection MakePoint(String name, double x, double y, MgWktReaderWriter wktReaderWriter, MgAgfReaderWriter agfReaderWriter) { MgPropertyCollection propertyCollection = new MgPropertyCollection(); MgStringProperty nameProperty = new MgStringProperty("NAME", name); propertyCollection.Add(nameProperty); MgGeometry geometry = wktReaderWriter.Read("POINT XY (" + x + " " + y + ")"); MgByteReader geometryByteReader = agfReaderWriter.Write(geometry); MgGeometryProperty geometryProperty = new MgGeometryProperty("GEOM", geometryByteReader); propertyCollection.Add(geometryProperty); return(propertyCollection); }
private void bgGridLoader_DoWork(object sender, DoWorkEventArgs e) { var reader = (MgReader)e.Argument; var wktRw = new MgWktReaderWriter(); var agfRw = new MgAgfReaderWriter(); var cls = _layer.GetClassDefinition(); var idProps = cls.GetIdentityProperties(); var idNames = new List <string>(); for (int i = 0; i < idProps.Count; i++) { var prop = idProps.GetItem(i); idNames.Add(prop.Name); } _identityProps = idNames.ToArray(); var propNames = new List <string>(); int propCount = reader.GetPropertyCount(); //.net 2.0 compatibility hack for set-like behaviour var skipProps = new Dictionary <int, int>(); for (int i = 0; i < propCount; i++) { var pt = reader.GetPropertyType(i); if (pt == MgPropertyType.Blob || pt == MgPropertyType.Clob || pt == MgPropertyType.Feature || pt == MgPropertyType.Null || pt == MgPropertyType.Raster) { skipProps[i] = i; } else { var name = reader.GetPropertyName(i); _propMap.Add(name, pt); propNames.Add(name); } } try { bgGridLoader.ReportProgress(-1, new InitGridAction() { ColumnNames = propNames.ToArray() }); int read = 0; while (reader.ReadNext()) { object[] values = new object[propCount]; for (int i = 0; i < propCount; i++) { if (skipProps.ContainsKey(i)) { continue; } if (reader.IsNull(i)) { values[i] = null; } else { switch (reader.GetPropertyType(i)) { case MgPropertyType.Boolean: values[i] = reader.GetBoolean(i); break; case MgPropertyType.Byte: values[i] = reader.GetByte(i); break; case MgPropertyType.DateTime: values[i] = ToClrDateTime(reader.GetDateTime(i)); break; case MgPropertyType.Decimal: case MgPropertyType.Double: values[i] = reader.GetDouble(i); break; case MgPropertyType.Geometry: { try { var agf = reader.GetGeometry(i); var geom = agfRw.Read(agf); var env = geom.Envelope(); var envLL = env.LowerLeftCoordinate; var envUR = env.UpperRightCoordinate; var wkt = wktRw.Write(geom); values[i] = new BoxedGeometry() { Text = wkt, GeomBounds = new Bounds() { LowerX = envLL.X, LowerY = envLL.Y, UpperX = envUR.X, UpperY = envUR.Y } }; } catch { values[i] = null; } } break; case MgPropertyType.Int16: values[i] = reader.GetInt16(i); break; case MgPropertyType.Int32: values[i] = reader.GetInt32(i); break; case MgPropertyType.Int64: values[i] = reader.GetInt64(i); break; case MgPropertyType.Single: values[i] = reader.GetSingle(i); break; case MgPropertyType.String: values[i] = reader.GetString(i); break; } } } bgGridLoader.ReportProgress(-1, new AddRow() { Values = values }); read++; if ((_limit > 0 && read >= _limit)) { break; } } } finally { reader.Close(); wktRw.Dispose(); agfRw.Dispose(); wktRw = null; agfRw = null; } }
private void btnCreateBuffer_Click(object sender, EventArgs e) { MgSelectionBase selection = _viewer.GetSelection(); MgReadOnlyLayerCollection layers = selection.GetLayers(); if (layers == null) { MessageBox.Show("Select a parcel"); return; } MgLayerBase parcels = null; for (int i = 0; i < layers.GetCount(); i++) { MgLayerBase layer = layers.GetItem(i); if (layer.Name == "Parcels") { parcels = layer; break; } } if (parcels == null) { MessageBox.Show("Select a parcel"); return; } int bufferRingSize = 100; // measured in metres int bufferRingCount = 5; // Set up some objects for coordinate conversion MgMapBase map = _viewer.GetMap(); MgLayerCollection mapLayers = map.GetLayers(); MgMapViewerProvider provider = _viewer.GetProvider(); MgResourceService resourceService = (MgResourceService)provider.CreateService(MgServiceType.ResourceService); //Casting to MgdFeatureService because we want to use convenience APIs MgFeatureService featureService = (MgdFeatureService)provider.CreateService(MgServiceType.FeatureService); String mapWktSrs = map.GetMapSRS(); MgAgfReaderWriter agfReaderWriter = new MgAgfReaderWriter(); MgWktReaderWriter wktReaderWriter = new MgWktReaderWriter(); MgCoordinateSystemFactory coordinateSystemFactory = new MgCoordinateSystemFactory(); MgCoordinateSystem srs = coordinateSystemFactory.Create(mapWktSrs); MgMeasure srsMeasure = srs.GetMeasure(); string sessionId = Guid.NewGuid().ToString(); BufferHelper helper = new BufferHelper(); // Check for a buffer layer. If it exists, delete // the current features. // If it does not exist, create a feature source and // a layer to hold the buffer. MgdLayer bufferLayer = null; int layerIndex = mapLayers.IndexOf("Buffer"); if (layerIndex < 0) { // The layer does not exist and must be created. MgResourceIdentifier bufferFeatureResId = new MgResourceIdentifier("Session:" + sessionId + "//Buffer.FeatureSource"); helper.CreateBufferFeatureSource(featureService, mapWktSrs, bufferFeatureResId); bufferLayer = helper.CreateBufferLayer(resourceService, bufferFeatureResId, sessionId); mapLayers.Insert(0, bufferLayer); } else { bufferLayer = (MgdLayer)map.GetLayers().GetItem(layerIndex); bufferLayer.DeleteFeatures("ID like '%'"); } // Get the selected features from the MgSelection object MgFeatureReader featureReader = selection.GetSelectedFeatures(parcels, parcels.GetFeatureClassName(), false); // Process each item in the MgFeatureReader. Get the // geometries from all the selected features and // merge them into a single geometry. MgGeometryCollection inputGeometries = new MgGeometryCollection(); while (featureReader.ReadNext()) { MgByteReader featureGeometryData = featureReader.GetGeometry(parcels.GetFeatureGeometryName()); MgGeometry featureGeometry = agfReaderWriter.Read(featureGeometryData); inputGeometries.Add(featureGeometry); } MgGeometryFactory geometryFactory = new MgGeometryFactory(); MgGeometry mergedGeometries = geometryFactory.CreateMultiGeometry(inputGeometries); // Add buffer features to the temporary feature source. // Create multiple concentric buffers to show area. // If the stylization for the layer draws the features // partially transparent, the concentric rings will be // progressively darker towards the center. // The stylization is set in the layer template file, which // is used in function CreateBufferLayer(). for (int bufferRing = 0; bufferRing < bufferRingCount; bufferRing++) { double bufferDist = srs.ConvertMetersToCoordinateSystemUnits(bufferRingSize * (bufferRing + 1)); MgGeometry bufferGeometry = mergedGeometries.Buffer(bufferDist, srsMeasure); MgPropertyCollection properties = new MgPropertyCollection(); properties.Add(new MgGeometryProperty("BufferGeometry", agfReaderWriter.Write(bufferGeometry))); MgFeatureReader fr = bufferLayer.InsertFeatures(properties); fr.Close(); } bufferLayer.SetVisible(true); bufferLayer.ForceRefresh(); bufferLayer.SetDisplayInLegend(true); MessageBox.Show("Buffer created"); _viewer.RefreshMap(); IMapLegend legend = Shell.Instance.Legend; if (legend != null) { legend.RefreshLegend(); } }
public LocalNativeRecord(MgReader reader, FixedWKTReader mgReader, MgAgfReaderWriter agfRw, MgWktReaderWriter wktRw) { for (int i = 0; i < reader.GetPropertyCount(); i++) { string name = reader.GetPropertyName(i); _ordinalMap[i] = name; var pt = (PropertyValueType)reader.GetPropertyType(name); switch (pt) { case PropertyValueType.Blob: _values[name] = new BlobValue(); break; case PropertyValueType.Boolean: _values[name] = new BooleanValue(); break; case PropertyValueType.Byte: _values[name] = new ByteValue(); break; case PropertyValueType.Clob: _values[name] = new ClobValue(); break; case PropertyValueType.DateTime: _values[name] = new DateTimeValue(); break; case PropertyValueType.Double: _values[name] = new DoubleValue(); break; case PropertyValueType.Feature: _values[name] = new FeatureValue(); break; case PropertyValueType.Geometry: _values[name] = new GeometryValue(); break; case PropertyValueType.Int16: _values[name] = new Int16Value(); break; case PropertyValueType.Int32: _values[name] = new Int32Value(); break; case PropertyValueType.Int64: _values[name] = new Int64Value(); break; case PropertyValueType.Raster: _values[name] = new RasterValue(); break; case PropertyValueType.Single: _values[name] = new SingleValue(); break; case PropertyValueType.String: _values[name] = new StringValue(); break; } } for (int i = 0; i < reader.GetPropertyCount(); i++) { string name = _ordinalMap[i]; GetByteReaderMethod getblob = () => { return reader.GetBLOB(name); }; GetByteReaderMethod getclob = () => { return reader.GetCLOB(name); }; GetByteReaderMethod getgeom = () => { return reader.GetGeometry(name); }; if (!reader.IsNull(name)) { var pt = (PropertyValueType)reader.GetPropertyType(name); switch (pt) { case PropertyValueType.Blob: ((BlobValue)_values[name]).Value = Utility.StreamAsArray(new MgReadOnlyStream(getblob)); break; case PropertyValueType.Boolean: ((BooleanValue)_values[name]).Value = reader.GetBoolean(name); break; case PropertyValueType.Byte: ((ByteValue)_values[name]).Value = reader.GetByte(name); break; case PropertyValueType.Clob: byte[] b = Utility.StreamAsArray(new MgReadOnlyStream(getclob)); ((ClobValue)_values[name]).Value = Encoding.UTF8.GetChars(b); break; case PropertyValueType.DateTime: ((DateTimeValue)_values[name]).Value = Utility.ConvertMgDateTime(reader.GetDateTime(name)); break; case PropertyValueType.Double: ((DoubleValue)_values[name]).Value = reader.GetDouble(name); break; //case PropertyValueType.Feature: case PropertyValueType.Geometry: try { //TODO: See if SWIG issues come into play here var geom = agfRw.Read(reader.GetGeometry(name)); var wkt = wktRw.Write(geom); ((GeometryValue)_values[name]).Value = mgReader.Read(wkt); } catch //Invalid geometry fail! { ((GeometryValue)_values[name]).SetNull(); } break; case PropertyValueType.Int16: ((Int16Value)_values[name]).Value = reader.GetInt16(name); break; case PropertyValueType.Int32: ((Int32Value)_values[name]).Value = reader.GetInt32(name); break; case PropertyValueType.Int64: ((Int64Value)_values[name]).Value = reader.GetInt64(name); break; case PropertyValueType.Single: ((SingleValue)_values[name]).Value = reader.GetSingle(name); break; case PropertyValueType.String: ((StringValue)_values[name]).Value = reader.GetString(name); break; } } } }
internal MgSelectionSet(MgSelectionBase selection, MgMapViewerProvider provider) { _agfRw = new MgAgfReaderWriter(); _features = new Dictionary<string, List<MgFeature>>(); var selLayers = selection.GetLayers(); if (selLayers != null) { for (int i = 0; i < selLayers.GetCount(); i++) { var layer = selLayers.GetItem(i); var clsName = layer.GetFeatureClassName(); int selCount = selection.GetSelectedFeaturesCount(layer, clsName); if (selCount == 0) { System.Diagnostics.Trace.TraceWarning("No items in selection set for this layer (" + layer.GetName() + "). Layer shouldn't be here then"); continue; } NameValueCollection mappings = (provider != null) ? provider.GetPropertyMappings(layer) : null; _features[layer.Name] = new List<MgFeature>(); var reader = selection.GetSelectedFeatures(layer, layer.GetFeatureClassName(), false); while (reader.ReadNext()) { var feature = CreateFeatureFromReader(reader); if (mappings != null) PerformDisplayNameSubstitution(feature, mappings); _features[layer.Name].Add(feature); } reader.Close(); } } }
private ReaderResponseDialog() { InitializeComponent(); _wktRW = new MgWktReaderWriter(); _agfRW = new MgAgfReaderWriter(); }
//---------------------------------------------------------------------------------------- // �� �ܣ� ������ʱ�� // // �� �ߣ� // // // �� �ڣ�2007.05.# // //----------------------------------------------------------------------------------------- public bool CreatePointsLayer(String rootPath, String sessionId) { // ��ȡҪ�ط������Դ���� MgResourceService resourceService = (MgResourceService)siteConnection.CreateService(MgServiceType.ResourceService); MgFeatureService featureService = (MgFeatureService)siteConnection.CreateService(MgServiceType.FeatureService); // ��ͼ MgMap map = new MgMap(); map.Open(resourceService, "Sheboygan"); // ---Ҫ�����Ҫ�ز������û��������������滹Ҫ���ܣ�--��ʼ // ���������ݵ�Ҫ��Դ CreateFeatureSource(sessionId); String featureSourceName = "Session:" + sessionId + "//Points.FeatureSource"; MgResourceIdentifier resourceIdentifier = new MgResourceIdentifier(featureSourceName); MgBatchPropertyCollection batchPropertyCollection = new MgBatchPropertyCollection(); MgWktReaderWriter wktReaderWriter = new MgWktReaderWriter(); MgAgfReaderWriter agfReaderWriter = new MgAgfReaderWriter(); MgGeometryFactory geometryFactory = new MgGeometryFactory(); // �������¼ MgPropertyCollection propertyCollection = MakePoint("Point A", -87.727, 43.748); batchPropertyCollection.Add(propertyCollection); propertyCollection = MakePoint("Point B", -87.728, 43.730); batchPropertyCollection.Add(propertyCollection); propertyCollection = MakePoint("Point C", -87.726, 43.750); batchPropertyCollection.Add(propertyCollection); propertyCollection = MakePoint("Point D", -87.728, 43.750); batchPropertyCollection.Add(propertyCollection); // ��������Ҫ��������ӵ�Ҫ��Դ MgInsertFeatures Insertcmd = new MgInsertFeatures("Points", batchPropertyCollection); MgFeatureCommandCollection featureCommandCollection = new MgFeatureCommandCollection(); featureCommandCollection.Add(Insertcmd); featureService.UpdateFeatures(resourceIdentifier, featureCommandCollection, false); MgResourceIdentifier resourceID = null; //--------------Ҫ�����Ҫ�ز��� ���� // �����㣬ͨ���㹤��LayerDefinitionFactory LayerDefinitionFactory factory = new LayerDefinitionFactory(); factory.RootDirectoryPath = rootPath; //-------------------��������ʽ------------------------// // ������Ƿ���l string resourceSymbel = "Library://MgTutorial/Symbols/BasicSymbols.SymbolLibrary"; string symbolName = "PushPin"; string width = "24"; // unit = points string height = "24"; // unit = points string color = "FFFF0000"; string markSymbol = factory.CreateMarkSymbol(resourceSymbel, symbolName, width, height, color); // �����ı� string text = "ID"; string fontHeight = "12"; string foregroundColor = "FF000000"; string textSymbol = factory.CreateTextSymbol(text, fontHeight, foregroundColor); // ��������� string legendLabel = "trees"; string filter = ""; string pointRule = factory.CreatePointRule(legendLabel, filter, textSymbol, markSymbol); // ��������ʽ string pointTypeStyle = factory.CreatePointTypeStyle(pointRule); // �������ŷ�Χ string minScale = "0"; string maxScale = "1000000000000"; string pointScaleRange = factory.CreateScaleRange(minScale, maxScale, pointTypeStyle); // �����㶨�� string featureName = "PointSchema:Points"; string geometry = "GEOM"; string layerDefinition = factory.CreateLayerDefinition(featureSourceName, featureName, geometry, pointScaleRange); MgByteSource byteSource = new MgByteSource(Encoding.UTF8.GetBytes(layerDefinition), layerDefinition.Length); MgByteReader byteReader = byteSource.GetReader(); resourceID = new MgResourceIdentifier("Session:" + sessionId + "//Points.LayerDefinition"); resourceService.SetResource(resourceID, byteReader, null); //��������IJ㶨�����ݣ������ã� MgByteSink byteSink = new MgByteSink(resourceService.GetResourceContent(resourceID)); string filePath = "C:\\Temp\\LayerDefinition.xml"; byteSink.ToFile(filePath); // �����㲢��ӵ�����͵�ͼ�� MgLayer newLayer = CreateLayerResource(resourceID, resourceService, "Points", "��ʱ��", map); AddLayerToGroup(newLayer, "Analysis", "����", map); MgLayerCollection layerCollection = map.GetLayers(); if (layerCollection.Contains("Points")) { MgLayer pointsLayer = layerCollection.GetItem("Points"); pointsLayer.SetVisible(true); } // �����ͼ map.Save(resourceService); return true; }
public override void Invoke() { var viewer = this.Viewer; var sel = viewer.GetSelection(); var selLayers = sel.GetLayers(); if (selLayers == null) { MessageBox.Show(Strings.TextNoSelection); return; } //This doesn't work :( // //var provider = viewer.GetProvider(); //var featSvc = (MgFeatureService)provider.CreateService(MgServiceType.FeatureService); //var ext = sel.GetExtents(featSvc); //var ll = ext.LowerLeftCoordinate; //var ur = ext.UpperRightCoordinate; //viewer.ZoomToExtents(ll.X, ll.Y, ur.X, ur.Y); MgEnvelope env = new MgEnvelope(); if (_agfRw == null) { _agfRw = new MgAgfReaderWriter(); } for (var i = 0; i < selLayers.GetCount(); i++) { var layer = selLayers.GetItem(i); var fr = sel.GetSelectedFeatures(layer, layer.FeatureClassName, false); try { string geomName = layer.GetFeatureGeometryName(); while (fr.ReadNext()) { if (!fr.IsNull(geomName)) { MgByteReader agf = null; MgGeometry geom = null; try { agf = fr.GetGeometry(geomName); geom = _agfRw.Read(agf); env.ExpandToInclude(geom.Envelope()); } finally { if (agf != null) { agf.Dispose(); agf = null; } if (geom != null) { geom.Dispose(); geom = null; } } } } } finally { fr.Close(); } } var ll = env.LowerLeftCoordinate; var ur = env.UpperRightCoordinate; viewer.ZoomToExtents(ll.X, ll.Y, ur.X, ur.Y); }
public static void AddFeatureToCollection(MgBatchPropertyCollection propCollection, MgAgfReaderWriter agfRW, int featureId, MgGeometry featureGeom) { MgPropertyCollection bufferProps = new MgPropertyCollection(); MgInt32Property idProp = new MgInt32Property("ID", featureId); //NOXLATE bufferProps.Add(idProp); MgByteReader geomReader = agfRW.Write(featureGeom); MgGeometryProperty geomProp = new MgGeometryProperty("GEOM", geomReader); //NOXLATE bufferProps.Add(geomProp); propCollection.Add(bufferProps); }
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); } }
protected void Page_Load(object sender, EventArgs e) { if (!Page.IsPostBack) { string sessionId = GetRequestParameters(Request)["SESSION"]; string mapName = GetRequestParameters(Request)["MAPNAME"]; string locale = GetRequestParameters(Request)["LOCALE"]; if (string.IsNullOrEmpty(sessionId)) { Response.Clear(); Response.End(); return; } if (string.IsNullOrEmpty(mapName)) { Response.Clear(); Response.End(); return; } MgResourceService resourceSrvc = GetMgResurceService(sessionId); MgFeatureService featureSrvc = GetMgFeatureService(sessionId); MgMap map = new MgMap(); map.Open(resourceSrvc, mapName); string layernames = GetRequestParameters(Request)["LAYERNAMES"]; string GEOMETRY = GetRequestParameters(Request)["GEOMETRY"]; string selVar = GetRequestParameters(Request)["SELECTIONVARIANT"]; string type = GetRequestParameters(Request)["tp"]; string inputSel = GetRequestParameters(Request)["SELECTION"]; bool hasInputGeom = false; if (!string.IsNullOrEmpty(GEOMETRY)) { hasInputGeom = true; } //selection ima prednost pred podano geometrijo ... MgWktReaderWriter wktrw = new MgWktReaderWriter(); if (!string.IsNullOrEmpty(inputSel)) { MgGeometry inputGeom = MultiGeometryFromSelection(featureSrvc, map, inputSel); GEOMETRY = wktrw.Write(inputGeom); } MgAgfReaderWriter agfRW = new MgAgfReaderWriter(); int nLayer = 0; // pobrišem in zgradim na novo samo tiste, ki imajo zadetke ... int nSloj = 0; string filter = ""; StringBuilder sbOut = new StringBuilder(); sbOut.Append("<table width=\"100%\" class=\"results\">"); sbOut.Append("<tr><td class='header'></td><td class='header'>" + "Layer" + "</td><td class='header' align=\"center\">" + "Select" + "</td><td class='header' align=\"center\">" + "Report" + "</td></tr>"); MgSelection selAll = new MgSelection(map); foreach (MgLayer layer in map.GetLayers()) { if (type != "2") { if (!layer.IsVisible()) { goto nextlay; } } if (layer.LegendLabel == "") { goto nextlay; } try { nLayer++; filter = String.Format("{0} {1} GeomFromText('{2}')", layer.GetFeatureGeometryName(), selVar, GEOMETRY); //preveriti še filter na Layerju. Ker ne gre drugače, je potrebno pogledati v XML MgResourceIdentifier layerDefResId = layer.GetLayerDefinition(); MgByteReader byteReader = resourceSrvc.GetResourceContent(layerDefResId); System.Xml.XmlDocument doc = new System.Xml.XmlDocument(); String xmlLayerDef = byteReader.ToString(); doc.LoadXml(xmlLayerDef); KALI.MGE.Objects.KALILayerDefinition.LayerDefinition ld = KALI.MGE.Objects.KALILayerDefinition.LayerDefinition.Parse(xmlLayerDef); if (!string.IsNullOrEmpty(ld.VectorLayerDefinition.Filter)) { filter += " AND (" + ld.VectorLayerDefinition.Filter + ")"; } //query the features MgFeatureQueryOptions opts = new MgFeatureQueryOptions(); opts.SetFilter(filter); String featureClassName = layer.GetFeatureClassName(); MgResourceIdentifier srcId = new MgResourceIdentifier(layer.GetFeatureSourceId()); MgFeatureReader features = featureSrvc.SelectFeatures(srcId, featureClassName, opts); bool hasResult = features.ReadNext(); if (hasResult) { nSloj++; int n = 0; MgClassDefinition classDef = features.GetClassDefinition(); MgPropertyDefinitionCollection classDefProps = classDef.GetIdentityProperties(); ArrayList idPropNames = new ArrayList(classDefProps.GetCount()); for (int j = 0; j < classDefProps.GetCount(); j++) { MgPropertyDefinition idProp = classDefProps.GetItem(j); idPropNames.Add(idProp.GetName()); } MgSelection sel = new MgSelection(map); do { // Generate XML to selection this feature MgPropertyCollection idProps = new MgPropertyCollection(); foreach (string id in idPropNames) { int idPropType = features.GetPropertyType(id); switch (idPropType) { case MgPropertyType.Int32: idProps.Add(new MgInt32Property(id, features.GetInt32(id))); break; case MgPropertyType.String: idProps.Add(new MgStringProperty(id, features.GetString(id))); break; case MgPropertyType.Int64: idProps.Add(new MgInt64Property(id, features.GetInt64(id))); break; case MgPropertyType.Double: idProps.Add(new MgDoubleProperty(id, features.GetDouble(id))); break; case MgPropertyType.Single: idProps.Add(new MgSingleProperty(id, features.GetSingle(id))); break; case MgPropertyType.DateTime: idProps.Add(new MgDateTimeProperty(id, features.GetDateTime(id))); break; default: //throw new SearchError(String.Format(MgLocalizer.GetString("SEARCHTYYPENOTSUP", locale), new Object[] { idPropType.ToString() }), searchError); break; } } sel.AddFeatureIds(layer, featureClassName, idProps); selAll.AddFeatureIds(layer, featureClassName, idProps); n++; //if (n > 1000) break; } while (features.ReadNext()); features.Close(); features.Dispose(); string selText = EscapeForHtml(sel.ToXml()); string seljs = "<div class=\"allLay\" onclick=\"parent.SetSelectionXML('" + selText + "');\"><img width=\"16\" height=\"16\" style=\"border:0\" src=\"images/mActionZoomToSelected.png\"/></div>"; string seljs3 = "<div class=\"allLay\" onclick=\"parent.MultiGridShow('" + selText + "');\"><img width=\"16\" height=\"16\" style=\"border:0\" src=\"images/mActionOpenTable.png\"/></div>"; string linfo = "<b>" + layer.LegendLabel + "</b><br />" + n.ToString() + " " + "Hits"; sbOut.Append("<tr><td class=\"results\">" + nSloj.ToString() + "</td><td class=\"results\">" + linfo + "</td><td align=\"center\" class=\"results\">" + seljs + "</td><td align=\"center\" class=\"results\">" + seljs3 + "</td></tr>"); } } catch (Exception) { continue; } nextlay: continue; } sbOut.Append("</table>"); string selAllText = EscapeForHtml(selAll.ToXml()); string seljsAll = "<div class=\"allLay\" onclick=\"parent.SetSelectionXML('" + selAllText + "');\"><img width=\"16\" height=\"16\" style=\"border:0\" src=\"images/mActionZoomToSelected.png\"/>" + "Select All" + "</div>"; string seljsAll3 = "<div class=\"allLay\" onclick=\"parent.MultiGridShow('" + selAllText + "');\"><img width=\"16\" height=\"16\" style=\"border:0\" src=\"images/mActionOpenTable.png\"/>" + "Report All" + "</div>"; sbOut.Append(string.Format("<br /><table width=\"100%\" class=\"results\"><tr><td class=\"results\">{0}</td><td class=\"results\">{1}</td></tr></table>", seljsAll, seljsAll3)); featureSrvc.Dispose(); resourceSrvc.Dispose(); if (nSloj > 0) { litPrebodi.Text = sbOut.ToString(); } else { litPrebodiTitle.Visible = false; litPrebodi.Text = "<b>" + "None layer lies below the selected item/area!" + "</b>"; } MgGeometry inGeom = wktrw.Read(GEOMETRY); double rw = map.ViewScale / Math.Sqrt(inGeom.Area); //koordinate if (hasInputGeom & rw > 400) { string output = ""; output = pointTransformAndWriteZ(GEOMETRY, map); litKoordinate.Text = output; litKoordinateTitle.Text = "Coordinates of selected points:"; } } }
/// <summary> /// Releases the unmanaged resources used by the <see cref="T:System.Windows.Forms.Control"/> and its child controls and optionally releases the managed resources. /// </summary> /// <param name="disposing">true to release both managed and unmanaged resources; false to release only unmanaged resources.</param> protected override void Dispose(bool disposing) { if (disposing) { base.MouseUp -= OnMapMouseUp; base.MouseMove -= OnMapMouseMove; base.MouseDown -= OnMapMouseDown; base.MouseClick -= OnMapMouseClick; base.MouseDoubleClick -= OnMapMouseDoubleClick; base.MouseHover -= OnMapMouseHover; base.MouseEnter -= OnMouseEnter; base.MouseLeave -= OnMapMouseLeave; if (renderWorker != null) { renderWorker.DoWork -= renderWorker_DoWork; renderWorker.RunWorkerCompleted -= renderWorker_RunWorkerCompleted; } if (_csFact != null) { _csFact.Dispose(); _csFact = null; } if (_resSvc != null) { _resSvc.Dispose(); _resSvc = null; } if (_selection != null) { _selection.Dispose(); _selection = null; } if (_mapCs != null) { _mapCs.Dispose(); _mapCs = null; } if (_agfRW != null) { _agfRW.Dispose(); _agfRW = null; } if (_wktRW != null) { _wktRW.Dispose(); _wktRW = null; } if (_geomFact != null) { _geomFact.Dispose(); _geomFact = null; } if (_mapMeasure != null) { _mapMeasure.Dispose(); _mapMeasure = null; } } base.Dispose(disposing); }
/// <summary> /// Initializes this viewer with the specified viewer provider, if the provider contains a map /// it will load that as well. Otherwise a call to <see cref="LoadMap"/> is required afterwards /// </summary> /// <param name="provider">The provider.</param> public void Init(MgMapViewerProvider provider) { if (_agfRW == null) _agfRW = new MgAgfReaderWriter(); if (_wktRW == null) _wktRW = new MgWktReaderWriter(); if (_geomFact == null) _geomFact = new MgGeometryFactory(); _provider = provider; if (_resSvc != null) //Forward looking, dispose the existing one as it may be of a different implementation { _resSvc.Dispose(); _resSvc = null; } _resSvc = (MgResourceService)_provider.CreateService(MgServiceType.ResourceService); _overlayRenderOpts = CreateMapRenderingOptions(0, 0, 255); _selectionRenderOpts = CreateSelectionRenderingOptions(0, 0, 255); if (_provider != null) { _provider.MapLoaded -= OnMapSetOnProvider; _provider = null; } _provider = provider; _provider.MapLoaded += OnMapSetOnProvider; var map = _provider.GetMap(); if (map != null) OnMapSetOnProvider(this, EventArgs.Empty); }
public LocalNativeRecord(MgReader reader, FixedWKTReader mgReader, MgAgfReaderWriter agfRw, MgWktReaderWriter wktRw) { for (int i = 0; i < reader.GetPropertyCount(); i++) { string name = reader.GetPropertyName(i); _ordinalMap[i] = name; var pt = (PropertyValueType)reader.GetPropertyType(name); switch (pt) { case PropertyValueType.Blob: _values[name] = new BlobValue(); break; case PropertyValueType.Boolean: _values[name] = new BooleanValue(); break; case PropertyValueType.Byte: _values[name] = new ByteValue(); break; case PropertyValueType.Clob: _values[name] = new ClobValue(); break; case PropertyValueType.DateTime: _values[name] = new DateTimeValue(); break; case PropertyValueType.Double: _values[name] = new DoubleValue(); break; case PropertyValueType.Feature: _values[name] = new FeatureValue(); break; case PropertyValueType.Geometry: _values[name] = new GeometryValue(); break; case PropertyValueType.Int16: _values[name] = new Int16Value(); break; case PropertyValueType.Int32: _values[name] = new Int32Value(); break; case PropertyValueType.Int64: _values[name] = new Int64Value(); break; case PropertyValueType.Raster: _values[name] = new RasterValue(); break; case PropertyValueType.Single: _values[name] = new SingleValue(); break; case PropertyValueType.String: _values[name] = new StringValue(); break; } } for (int i = 0; i < reader.GetPropertyCount(); i++) { string name = _ordinalMap[i]; GetByteReaderMethod getblob = () => { return reader.GetBLOB(name); }; GetByteReaderMethod getclob = () => { return reader.GetCLOB(name); }; GetByteReaderMethod getgeom = () => { return reader.GetGeometry(name); }; if (!reader.IsNull(name)) { var pt = (PropertyValueType)reader.GetPropertyType(name); switch (pt) { case PropertyValueType.Blob: ((BlobValue)_values[name]).Value = Utility.StreamAsArray(new MgReadOnlyStream(getblob)); break; case PropertyValueType.Boolean: ((BooleanValue)_values[name]).Value = reader.GetBoolean(name); break; case PropertyValueType.Byte: ((ByteValue)_values[name]).Value = reader.GetByte(name); break; case PropertyValueType.Clob: byte [] b = Utility.StreamAsArray(new MgReadOnlyStream(getclob)); ((ClobValue)_values[name]).Value = Encoding.UTF8.GetChars(b); break; case PropertyValueType.DateTime: ((DateTimeValue)_values[name]).Value = Utility.ConvertMgDateTime(reader.GetDateTime(name)); break; case PropertyValueType.Double: ((DoubleValue)_values[name]).Value = reader.GetDouble(name); break; //case PropertyValueType.Feature: case PropertyValueType.Geometry: try { //TODO: See if SWIG issues come into play here var geom = agfRw.Read(reader.GetGeometry(name)); var wkt = wktRw.Write(geom); ((GeometryValue)_values[name]).Value = mgReader.Read(wkt); } catch //Invalid geometry fail! { ((GeometryValue)_values[name]).SetNull(); } break; case PropertyValueType.Int16: ((Int16Value)_values[name]).Value = reader.GetInt16(name); break; case PropertyValueType.Int32: ((Int32Value)_values[name]).Value = reader.GetInt32(name); break; case PropertyValueType.Int64: ((Int64Value)_values[name]).Value = reader.GetInt64(name); break; case PropertyValueType.Single: ((SingleValue)_values[name]).Value = reader.GetSingle(name); break; case PropertyValueType.String: ((StringValue)_values[name]).Value = reader.GetString(name); break; } } } }
public override void Dispose() { Close(); if (_agfRw != null) { try { _agfRw.Dispose(); } catch (MgException ex) { ex.Dispose(); } _agfRw = null; } if (_wktRw != null) { try { _wktRw.Dispose(); } catch (MgException ex) { ex.Dispose(); } _wktRw = null; } base.Dispose(); }
//---------------------------------------------------------------------------------------- // �� �ܣ� ���ڴ�������ݣ�x��y�������ռ��Ҫ������ // // �� �ߣ� // // // �� �ڣ�2007.05.# // //----------------------------------------------------------------------------------------- public MgPropertyCollection MakePoint(string name, double x, double y) { MgPropertyCollection propertyCollection = new MgPropertyCollection(); MgStringProperty nameProperty = new MgStringProperty("NAME", name); propertyCollection.Add(nameProperty); MgWktReaderWriter wktReaderWriter = new MgWktReaderWriter(); MgAgfReaderWriter agfReaderWriter = new MgAgfReaderWriter(); MgGeometry geometry = wktReaderWriter.Read("POINT XY (" + x.ToString() + " " + y.ToString() + ")"); MgByteReader geometryByteReader = agfReaderWriter.Write(geometry); MgGeometryProperty geometryProperty = new MgGeometryProperty("GEOM", geometryByteReader); propertyCollection.Add(geometryProperty); return propertyCollection; }
//--------------------------------------------------------------------------------------- // // ���ܣ�����Ҫ�����ݣ������ڹ�����¼ // // ���ߣ� // // ���ڣ� 2007.5.23 // // ����ʷ���� // //--------------------------------------------------------------------------------------- private MgPropertyCollection populateParcelFeatureAttributes(MgPolygon geom, ParcelProperty newParcel) { MgPropertyCollection props = new MgPropertyCollection(); MgAgfReaderWriter agfWriter = new MgAgfReaderWriter(); props.Add(new MgGeometryProperty("GEOM", agfWriter.Write(geom))); props.Add(new MgStringProperty("ACRE", newParcel.Acreage)); props.Add(new MgStringProperty("BILLADDR", newParcel.BillingAddr)); props.Add(new MgStringProperty("DESC1", newParcel.Description1)); props.Add(new MgStringProperty("DESC2", newParcel.Description2)); props.Add(new MgStringProperty("DESC3", newParcel.Description3)); props.Add(new MgStringProperty("DESC4", newParcel.Description4)); props.Add(new MgStringProperty("LOTDIM", newParcel.LotDimension)); props.Add(new MgInt32Property("SQFT", newParcel.LotSize)); props.Add(new MgStringProperty("OWNER", newParcel.Owner)); props.Add(new MgStringProperty("ZONE", newParcel.Zoning)); return props; }
//--------------------------------------------------------------------------------------- // // ���ܣ�����Ҫ�ض��� // // ���ߣ� // // ���ڣ� 2007.5.23 // // ����ʷ���� // //--------------------------------------------------------------------------------------- public void createNewParcel(MgPolygon geom, ParcelProperty newParcel) { MgPropertyCollection properties = buildPropertyCol(newParcel); MgAgfReaderWriter agfWriter = new MgAgfReaderWriter(); MgByteReader byteReader = agfWriter.Write(geom); properties.Add(new MgGeometryProperty("SHPGEOM", byteReader)); MgFeatureService featureService = (MgFeatureService)siteConnection.CreateService(MgServiceType.FeatureService); MgResourceIdentifier parcelSource = new MgResourceIdentifier("Library://MgTutorial/Data/Parcels.FeatureSource"); MgFeatureCommandCollection commands = new MgFeatureCommandCollection(); commands.Add(new MgInsertFeatures("Parcels", properties)); featureService.UpdateFeatures(parcelSource, commands, false); ////////////////////////////////////////// /* MgFeatureCommandCollection commands = new MgFeatureCommandCollection(); MgPropertyCollection properties = new MgPropertyCollection(); MgAgfReaderWriter agfReaderWriter = new MgAgfReaderWriter(); MgByteReader byteReader = agfReaderWriter.Write(geometry); MgGeometryProperty geometryProperty = new MgGeometryProperty("SHPGEOM",byteReader); properties.Add(new MgInt32Property("RSQFT", 322)); properties.Add(new MgStringProperty("RNAME", "YourName")); properties.Add(new MgStringProperty("RTYPE", "GFC")); MgPropertyCollection properties = new MgPropertyCollection (); properties.Add(geometryProperty); MgInsertFeatures insertCommand = new MgInsertFeatures(className, properties); commands.Add(insertCommand); featureService.UpdateFeatures(featureSource, commands, false); * */ }
public void AddPoint() { MgGeometryFactory geometryFactory = new MgGeometryFactory(); MgAgfReaderWriter agfWriter = new MgAgfReaderWriter(); String[] vertices = GetParameter(this.args, "GEOMETRY").Split(new Char[] { ',' }); MgCoordinate coord = geometryFactory.CreateCoordinateXY(Double.Parse(vertices[0]), Double.Parse(vertices[1])); MgPoint point = geometryFactory.CreatePoint(coord); point = (MgPoint)point.Transform(this.GetTransform()); MgByteReader byteReader = agfWriter.Write(point); MgPropertyCollection propertyValues = CreatePropertyCollection(byteReader); this.InsertMarkupFeature(propertyValues); }
/// <summary> /// Disposes of this instance /// </summary> public void Dispose() { if (_agfRw != null) { _agfRw.Dispose(); _agfRw = null; } foreach (var list in _features.Values) { foreach (var feat in list) { if (feat.Geometry != null) { feat.Geometry.Dispose(); feat.Geometry = null; } } } _features.Clear(); }
private void btnSelectDistrict1_Click(object sender, EventArgs e) { MgMapBase map = _viewer.GetMap(); MgLayerCollection layers = map.GetLayers(); MgLayerBase districts = layers.GetItem("Districts"); MgLayerBase parcels = layers.GetItem("Parcels"); //Query the geometry of district 1 MgFeatureQueryOptions districtQuery = new MgFeatureQueryOptions(); districtQuery.SetFilter("Autogenerated_SDF_ID = 1"); MgFeatureReader reader = districts.SelectFeatures(districtQuery); MgGeometry districtGeom = null; MgAgfReaderWriter agfRw = new MgAgfReaderWriter(); try { reader.ReadNext(); MgByteReader geomAgf = reader.GetGeometry(districts.GetFeatureGeometryName()); districtGeom = agfRw.Read(geomAgf); } finally { reader.Close(); } //Now use this geometry as the basis of our 2nd query MgFeatureQueryOptions parcelQuery = new MgFeatureQueryOptions(); parcelQuery.SetFilter("RNAME LIKE 'SCHMITT%'"); parcelQuery.SetSpatialFilter(parcels.GetFeatureGeometryName(), districtGeom, MgFeatureSpatialOperations.Inside); //Select the features reader = parcels.SelectFeatures(parcelQuery); MgSelectionBase selection = _viewer.GetSelection(); try { selection.FromXml(""); //Clear existing selection data selection.AddFeatures(parcels, reader, 0); } finally { reader.Close(); } //Because we manipulated the active selection outside the viewer //We need to call UpdateSelection() to instruct the viewer to //re-render the active selection. The "true" parameter instructs //the viewer to raise the SelectionChanged event as well, so that //subscribers like the Property Pane get updated as well. _viewer.UpdateSelection(true); _viewer.RefreshMap(); }
private void btnFindFeaturesInBuffer_Click(object sender, EventArgs e) { MgSelectionBase selection = _viewer.GetSelection(); MgReadOnlyLayerCollection selectedLayers = selection.GetLayers(); if (selectedLayers == null) { MessageBox.Show("Select a parcel"); return; } MgLayerBase parcels = null; for (int i = 0; i < selectedLayers.GetCount(); i++) { MgLayerBase layer = selectedLayers.GetItem(i); if (layer.Name == "Parcels") { parcels = layer; break; } } if (parcels == null) { MessageBox.Show("Select a parcel"); return; } int bufferRingSize = 500; // measured in metres // Set up some objects for coordinate conversion MgMapBase map = _viewer.GetMap(); MgLayerCollection mapLayers = map.GetLayers(); MgMapViewerProvider provider = _viewer.GetProvider(); MgResourceService resourceService = (MgResourceService)provider.CreateService(MgServiceType.ResourceService); //Casting to MgdFeatureService because we want to use convenience APIs MgFeatureService featureService = (MgdFeatureService)provider.CreateService(MgServiceType.FeatureService); string sessionId = Guid.NewGuid().ToString(); String mapWktSrs = map.GetMapSRS(); MgAgfReaderWriter agfReaderWriter = new MgAgfReaderWriter(); MgWktReaderWriter wktReaderWriter = new MgWktReaderWriter(); MgCoordinateSystemFactory coordinateSystemFactory = new MgCoordinateSystemFactory(); MgCoordinateSystem srs = coordinateSystemFactory.Create(mapWktSrs); MgMeasure srsMeasure = srs.GetMeasure(); // Check for a buffer layer. If it exists, delete // the current features. // If it does not exist, create a feature source and // a layer to hold the buffer. BufferHelper helper = new BufferHelper(); MgdLayer bufferLayer = null; int layerIndex = map.GetLayers().IndexOf("Buffer"); if (layerIndex < 0) { // The layer does not exist and must be created. MgResourceIdentifier bufferFeatureResId = new MgResourceIdentifier("Session:" + sessionId + "//Buffer.FeatureSource"); helper.CreateBufferFeatureSource(featureService, mapWktSrs, bufferFeatureResId); bufferLayer = helper.CreateBufferLayer(resourceService, bufferFeatureResId, sessionId); map.GetLayers().Insert(0, bufferLayer); } else { bufferLayer = (MgdLayer)map.GetLayers().GetItem(layerIndex); bufferLayer.DeleteFeatures("ID like '%'"); } // Check for a parcel marker layer. If it exists, delete // the current features. // If it does not exist, create a feature source and // a layer to hold the parcel markers. MgdLayer parcelMarkerLayer = null; layerIndex = map.GetLayers().IndexOf("ParcelMarker"); if (layerIndex < 0) { MgResourceIdentifier parcelFeatureResId = new MgResourceIdentifier("Session:" + sessionId + "//ParcelMarker.FeatureSource"); helper.CreateParcelMarkerFeatureSource(featureService, mapWktSrs, parcelFeatureResId); parcelMarkerLayer = helper.CreateParcelMarkerLayer(resourceService, parcelFeatureResId, sessionId); map.GetLayers().Insert(0, parcelMarkerLayer); } else { parcelMarkerLayer = (MgdLayer)map.GetLayers().GetItem(layerIndex); parcelMarkerLayer.DeleteFeatures("ID like '%'"); } // Check each layer in the selection. for (int i = 0; i < selectedLayers.GetCount(); i++) { // Only check selected features in the Parcels layer. MgdLayer layer = (MgdLayer)selectedLayers.GetItem(i); if (layer.GetName() == "Parcels") { string geomName = layer.GetFeatureGeometryName(); System.Diagnostics.Trace.TraceInformation("Marking all parcels inside the buffer that are of type 'MFG'"); MgFeatureReader featureReader = selection.GetSelectedFeatures(layer, layer.GetFeatureClassName(), false); // Process each item in the MgFeatureReader. Get the // geometries from all the selected features and // merge them into a single geometry. MgGeometryCollection inputGeometries = new MgGeometryCollection(); while (featureReader.ReadNext()) { MgByteReader featureGeometryData = featureReader.GetGeometry(geomName); MgGeometry featureGeometry = agfReaderWriter.Read(featureGeometryData); inputGeometries.Add(featureGeometry); } MgGeometryFactory geometryFactory = new MgGeometryFactory(); MgGeometry mergedGeometries = geometryFactory.CreateMultiGeometry(inputGeometries); // Create a buffer from the merged geometries double bufferDist = srs.ConvertMetersToCoordinateSystemUnits(bufferRingSize); MgGeometry bufferGeometry = mergedGeometries.Buffer(bufferDist, srsMeasure); // Create a filter to select parcels within the buffer. Combine // a basic filter and a spatial filter to select all parcels // within the buffer that are of type "MFG". MgFeatureQueryOptions queryOptions = new MgFeatureQueryOptions(); queryOptions.SetFilter("RTYPE = 'MFG'"); queryOptions.SetSpatialFilter(geomName, bufferGeometry, MgFeatureSpatialOperations.Inside); featureReader = layer.SelectFeatures(queryOptions); // Get the features from the feature source, // determine the centroid of each selected feature, and // add a point to the ParcelMarker layer to mark the // centroid. // Collect all the points into an MgFeatureCommandCollection, // so they can all be added in one operation. MgFeatureCommandCollection parcelMarkerCommands = new MgFeatureCommandCollection(); int inserted = 0; while (featureReader.ReadNext()) { MgByteReader byteReader = featureReader.GetGeometry(geomName); MgGeometry geometry = agfReaderWriter.Read(byteReader); MgPoint point = geometry.GetCentroid(); // Create an insert command for this parcel. MgPropertyCollection properties = new MgPropertyCollection(); properties.Add(new MgGeometryProperty("ParcelLocation", agfReaderWriter.Write(point))); //parcelMarkerCommands.Add(new MgInsertFeatures("ParcelMarkerClass", properties)); MgFeatureReader fr = parcelMarkerLayer.InsertFeatures(properties); fr.Close(); inserted++; } featureReader.Close(); if (inserted == 0) { MessageBox.Show("No parcels within the buffer area match."); return; } // Create a feature in the buffer feature source to show the area covered by the buffer. MgPropertyCollection props = new MgPropertyCollection(); props.Add(new MgGeometryProperty("BufferGeometry", agfReaderWriter.Write(bufferGeometry))); bufferLayer.InsertFeatures(props); // Ensure that the buffer layer is visible and in the legend. bufferLayer.SetVisible(true); bufferLayer.ForceRefresh(); bufferLayer.SetDisplayInLegend(true); parcelMarkerLayer.SetVisible(true); parcelMarkerLayer.ForceRefresh(); MessageBox.Show("Done"); _viewer.RefreshMap(); IMapLegend legend = Shell.Instance.Legend; if (legend != null) { legend.RefreshLegend(); } } } }
private void btnCreateBuffer_Click(object sender, EventArgs e) { MgSelectionBase selection = _viewer.GetSelection(); MgReadOnlyLayerCollection layers = selection.GetLayers(); if (layers == null) { MessageBox.Show("Select a parcel"); return; } MgLayerBase parcels = null; for (int i = 0; i < layers.GetCount(); i++) { MgLayerBase layer = layers.GetItem(i); if (layer.Name == "Parcels") { parcels = layer; break; } } if (parcels == null) { MessageBox.Show("Select a parcel"); return; } int bufferRingSize = 100; // measured in metres int bufferRingCount = 5; // Set up some objects for coordinate conversion MgMapBase map = _viewer.GetMap(); MgLayerCollection mapLayers = map.GetLayers(); MgMapViewerProvider provider = _viewer.GetProvider(); MgResourceService resourceService = (MgResourceService)provider.CreateService(MgServiceType.ResourceService); //Casting to MgdFeatureService because we want to use convenience APIs MgFeatureService featureService = (MgdFeatureService)provider.CreateService(MgServiceType.FeatureService); String mapWktSrs = map.GetMapSRS(); MgAgfReaderWriter agfReaderWriter = new MgAgfReaderWriter(); MgWktReaderWriter wktReaderWriter = new MgWktReaderWriter(); MgCoordinateSystemFactory coordinateSystemFactory = new MgCoordinateSystemFactory(); MgCoordinateSystem srs = coordinateSystemFactory.Create(mapWktSrs); MgMeasure srsMeasure = srs.GetMeasure(); string sessionId = Guid.NewGuid().ToString(); BufferHelper helper = new BufferHelper(); // Check for a buffer layer. If it exists, delete // the current features. // If it does not exist, create a feature source and // a layer to hold the buffer. MgdLayer bufferLayer = null; int layerIndex = mapLayers.IndexOf("Buffer"); if (layerIndex < 0) { // The layer does not exist and must be created. MgResourceIdentifier bufferFeatureResId = new MgResourceIdentifier("Session:" + sessionId + "//Buffer.FeatureSource"); helper.CreateBufferFeatureSource(featureService, mapWktSrs, bufferFeatureResId); bufferLayer = helper.CreateBufferLayer(resourceService, bufferFeatureResId, sessionId); mapLayers.Insert(0, bufferLayer); } else { bufferLayer = (MgdLayer)map.GetLayers().GetItem(layerIndex); bufferLayer.DeleteFeatures("ID like '%'"); } // Get the selected features from the MgSelection object MgFeatureReader featureReader = selection.GetSelectedFeatures(parcels, parcels.GetFeatureClassName(), false); // Process each item in the MgFeatureReader. Get the // geometries from all the selected features and // merge them into a single geometry. MgGeometryCollection inputGeometries = new MgGeometryCollection(); while (featureReader.ReadNext()) { MgByteReader featureGeometryData = featureReader.GetGeometry(parcels.GetFeatureGeometryName()); MgGeometry featureGeometry = agfReaderWriter.Read(featureGeometryData); inputGeometries.Add(featureGeometry); } MgGeometryFactory geometryFactory = new MgGeometryFactory(); MgGeometry mergedGeometries = geometryFactory.CreateMultiGeometry(inputGeometries); // Add buffer features to the temporary feature source. // Create multiple concentric buffers to show area. // If the stylization for the layer draws the features // partially transparent, the concentric rings will be // progressively darker towards the center. // The stylization is set in the layer template file, which // is used in function CreateBufferLayer(). for (int bufferRing = 0; bufferRing < bufferRingCount; bufferRing++) { double bufferDist = srs.ConvertMetersToCoordinateSystemUnits(bufferRingSize * (bufferRing + 1)); MgGeometry bufferGeometry = mergedGeometries.Buffer(bufferDist, srsMeasure); MgPropertyCollection properties = new MgPropertyCollection(); properties.Add(new MgGeometryProperty("BufferGeometry", agfReaderWriter.Write(bufferGeometry))); MgFeatureReader fr = bufferLayer.InsertFeatures(properties); fr.Close(); } bufferLayer.SetVisible(true); bufferLayer.ForceRefresh(); bufferLayer.SetDisplayInLegend(true); MessageBox.Show("Buffer created"); _viewer.RefreshMap(); IMapLegend legend = Shell.Instance.Legend; if (legend != null) legend.RefreshLegend(); }
private void btnCreate_Click(object sender, EventArgs e) { btnCreate.Enabled = false; try { var layerName = txtBufferLayer.Text.Trim(); if (string.IsNullOrEmpty(layerName)) { MessageBox.Show(Strings.MsgEnterNameForLayer); return; } if (lstLayers.SelectedItems.Count == 0) { MessageBox.Show(Strings.MsgIncludeLayersToBuffer); return; } var map = _viewer.GetMap(); var layers = map.GetLayers(); var provider = _viewer.GetProvider(); //From here, it's the same logic as buffer.aspx in .net MapGuide AJAX viewer MgResourceIdentifier fsId = new MgResourceIdentifier("Session:" + _sessionId + "//" + txtBufferLayer.Text + "_Buffer.FeatureSource"); //NOXLATE MgResourceIdentifier ldfId = new MgResourceIdentifier("Session:" + _sessionId + "//" + txtBufferLayer.Text + "_Buffer.LayerDefinition"); //NOXLATE MgLayerBase layer = Util.FindLayer(layers, txtBufferLayer.Text); string[] layerNames = GetLayerNames(); double distance = Convert.ToDouble(numBufferDistance.Value); MeasurementUnit bUnits = (MeasurementUnit)cmbUnits.SelectedItem; switch (bUnits) { case MeasurementUnit.Feet: distance *= 0.30480; break; case MeasurementUnit.Kilometers: distance *= 1000; break; case MeasurementUnit.Miles: distance *= 1609.35; break; } String srsDefMap = Util.GetMapSrs(map); MgCoordinateSystem srsMap = provider.GetMapCoordinateSystem(); string mapSrsUnits = ""; bool arbitraryMapSrs = (srsMap.GetType() == MgCoordinateSystemType.Arbitrary); if (arbitraryMapSrs) mapSrsUnits = srsMap.GetUnits(); String xtrans = String.Format("{0:x2}", ((int)(255 * Convert.ToInt32(numFillTransparency.Value) / 100))); //NOXLATE var lineColor = Util.ToHtmlColor(pnlBorderColor.BackColor); var foreColor = Util.ToHtmlColor(pnlFillColor.BackColor); var backColor = Util.ToHtmlColor(pnlFillBackColor.BackColor); String layerTempl = string.Format(Properties.Resources.AreaLayerDef, fsId.ToString(), "BufferSchema:Buffer", //NOXLATE "GEOM", //NOXLATE cmbFillPattern.SelectedItem, xtrans + foreColor, ((0 != 1/*transparent*/) ? "ff" : "00") + backColor, //NOXLATE cmbBorderPattern.SelectedItem, numLineThickness.Value.ToString(NumberFormatInfo.InvariantInfo), lineColor ); byte[] bytes = Encoding.UTF8.GetBytes(layerTempl); MgByteSource src = new MgByteSource(bytes, bytes.Length); MgByteReader layerDefContent = src.GetReader(); _resSvc.SetResource(ldfId, layerDefContent, null); bool newBuffer = false; if (layer == null) { newBuffer = true; //Targetting a new layer. create a data source for it // MgClassDefinition classDef = new MgClassDefinition(); classDef.SetName("Buffer"); //NOXLATE classDef.SetDescription("Feature class for buffer layer"); //NOXLATE classDef.SetDefaultGeometryPropertyName("GEOM"); //NOXLATE //Set KEY property MgDataPropertyDefinition prop = new MgDataPropertyDefinition("KEY"); //NOXLATE prop.SetDataType(MgPropertyType.Int32); prop.SetAutoGeneration(true); prop.SetReadOnly(true); classDef.GetIdentityProperties().Add(prop); classDef.GetProperties().Add(prop); //Set ID property. Hold this segment ID prop = new MgDataPropertyDefinition("ID"); //NOXLATE prop.SetDataType(MgPropertyType.Int32); classDef.GetProperties().Add(prop); //Set geometry property MgGeometricPropertyDefinition geomProp = new MgGeometricPropertyDefinition("GEOM"); //NOXLATE //prop.SetGeometryTypes(MgFeatureGeometricType.mfgtSurface); //TODO use the constant when exposed geomProp.SetGeometryTypes(4); classDef.GetProperties().Add(geomProp); //Create the schema MgFeatureSchema schema = new MgFeatureSchema("BufferSchema", "Temporary buffer schema"); //NOXLATE schema.GetClasses().Add(classDef); //finally, creation of the feature source MgFileFeatureSourceParams sdfParams = new MgFileFeatureSourceParams("OSGeo.SDF", "LatLong", map.GetMapSRS(), schema); //NOXLATE _featSvc.CreateFeatureSource(fsId, sdfParams); //Add layer to map layer = provider.CreateLayer(ldfId); layer.SetName(txtBufferLayer.Text); layer.SetLegendLabel(txtBufferLayer.Text); layer.SetDisplayInLegend(true); layer.SetSelectable(true); layers.Insert(0, layer); } else { //data source already exist. clear its content // Util.ClearDataSource(_featSvc, fsId, "BufferSchema:Buffer"); //NOXLATE } var sel = _viewer.GetSelection(); var selLayers = sel.GetLayers(); MgAgfReaderWriter agfRW = new MgAgfReaderWriter(); MgGeometryCollection bufferGeometries = new MgGeometryCollection(); MgGeometry geomBuffer; MgFeatureCommandCollection commands = new MgFeatureCommandCollection(); int featId = 0; MgBatchPropertyCollection propCollection = new MgBatchPropertyCollection(); int excludedLayers = 0; MgCoordinateSystem srsDs = null; MgGeometryCollection inputGeometries = new MgGeometryCollection(); int bufferFeatures = 0; for (int li = 0; li < selLayers.GetCount(); li++) { MgLayerBase selLayer = selLayers.GetItem(li); bool inputLayer = false; String selLayerName = selLayer.GetName(); for (int il = 0; il < layerNames.Length; il++) { if (layerNames[il].Equals(selLayerName)) { inputLayer = true; break; } } if (inputLayer == false) { continue; } // get the data source SRS // MgResourceIdentifier featSourceId = new MgResourceIdentifier(selLayer.GetFeatureSourceId()); MgSpatialContextReader ctxs = _featSvc.GetSpatialContexts(featSourceId, false); String srsDefDs = string.Empty; if (ctxs != null && ctxs.ReadNext()) srsDefDs = ctxs.GetCoordinateSystemWkt(); if (srsDefDs == null || srsDefDs.Length == 0) { excludedLayers++; continue; } var srsFactory = new MgCoordinateSystemFactory(); srsDs = srsFactory.Create(srsDefDs); bool arbitraryDsSrs = (srsDs.GetType() == MgCoordinateSystemType.Arbitrary); String dsSrsUnits = string.Empty; if (arbitraryDsSrs) dsSrsUnits = srsDs.GetUnits(); // exclude layer if: // the map is non-arbitrary and the layer is arbitrary or vice-versa // or // layer and map are both arbitrary but have different units // if ((arbitraryDsSrs != arbitraryMapSrs) || (arbitraryDsSrs && (dsSrsUnits != mapSrsUnits))) { excludedLayers++; continue; } // calculate distance in the data source SRS units // double dist = srsDs.ConvertMetersToCoordinateSystemUnits(distance); // calculate great circle unless data source srs is arbitrary MgCoordinateSystemMeasure measure; if (!arbitraryDsSrs) measure = srsDs.GetMeasure(); else measure = null; // create a SRS transformer if necessary MgCoordinateSystemTransform srsXform; if (!srsDefDs.Equals(srsDefMap)) srsXform = srsFactory.GetTransform(srsDs, srsMap); else srsXform = null; String featureClassName = selLayer.GetFeatureClassName(); String filter = sel.GenerateFilter(selLayer, featureClassName); if (filter == null || filter.Length == 0) continue; MgFeatureQueryOptions query = new MgFeatureQueryOptions(); query.SetFilter(filter); MgResourceIdentifier featureSource = new MgResourceIdentifier(selLayer.GetFeatureSourceId()); MgFeatureReader features = _featSvc.SelectFeatures(featureSource, featureClassName, query); if (features.ReadNext()) { MgClassDefinition classDef = features.GetClassDefinition(); String geomPropName = classDef.GetDefaultGeometryPropertyName(); do { MgByteReader geomReader = features.GetGeometry(geomPropName); MgGeometry geom = agfRW.Read(geomReader); if (!chkMergeBuffers.Checked) { geomBuffer = geom.Buffer(dist, measure); if (geomBuffer != null) { if (srsXform != null) geomBuffer = (MgGeometry)geomBuffer.Transform(srsXform); Util.AddFeatureToCollection(propCollection, agfRW, featId++, geomBuffer); bufferFeatures++; } } else { if (srsXform != null) geom = (MgGeometry)geom.Transform(srsXform); inputGeometries.Add(geom); } } while (features.ReadNext()); features.Close(); } } if (chkMergeBuffers.Checked) { if (inputGeometries.GetCount() > 0) { double dist = srsMap.ConvertMetersToCoordinateSystemUnits(distance); MgCoordinateSystemMeasure measure; if (!arbitraryMapSrs) measure = srsMap.GetMeasure(); else measure = null; MgGeometryFactory geomFactory = new MgGeometryFactory(); geomBuffer = geomFactory.CreateMultiGeometry(inputGeometries).Buffer(dist, measure); if (geomBuffer != null) { Util.AddFeatureToCollection(propCollection, agfRW, featId, geomBuffer); bufferFeatures = 1; } } } if (propCollection.GetCount() > 0) { commands.Add(new MgInsertFeatures("BufferSchema:Buffer", propCollection)); //NOXLATE //Insert the features in the temporary data source // Util.ReleaseReader(_featSvc.UpdateFeatures(fsId, commands, false), commands); } // Save the new map state // layer.ForceRefresh(); _viewer.RefreshMap(); //build report message if (newBuffer) MessageBox.Show(string.Format(Strings.MsgBufferLayerCreated, txtBufferLayer.Text)); else MessageBox.Show(string.Format(Strings.MsgBufferLayerUpdated, txtBufferLayer.Text)); } finally { btnCreate.Enabled = true; } }
static GeomConverter() { _agfRw = new MgAgfReaderWriter(); _wktRw = new MgWktReaderWriter(); _reader = new FixedWKTReader(); }
public void AddPolygon() { MgGeometryFactory geometryFactory = new MgGeometryFactory(); MgAgfReaderWriter agfWriter = new MgAgfReaderWriter(); String[] vertices = GetParameter(this.args, "GEOMETRY").Split(new Char[] { ',' }); int count = (int)Double.Parse(vertices[0]); MgCoordinateCollection coords = new MgCoordinateCollection(); for (int i = 0; i < count; i++) { MgCoordinate coord = geometryFactory.CreateCoordinateXY(Double.Parse(vertices[(i * 2) + 1]), Double.Parse(vertices[(i * 2) + 2])); coords.Add(coord); } MgLinearRing linearRing = geometryFactory.CreateLinearRing(coords); MgPolygon polygon = geometryFactory.CreatePolygon(linearRing, null); polygon = (MgPolygon)polygon.Transform(this.GetTransform()); MgByteReader byteReader = agfWriter.Write(polygon); MgPropertyCollection propertyValues = CreatePropertyCollection(byteReader); this.InsertMarkupFeature(propertyValues); }
private void btnCreatePointsOfInterest_Click(object sender, EventArgs e) { string layerName = "Points"; string legendLabel = "Points of Interest"; string groupName = "Analysis"; MgMapViewerProvider provider = _viewer.GetProvider(); MgResourceService resourceService = (MgResourceService)provider.CreateService(MgServiceType.ResourceService); //We use MgdFeatureService instead of MgFeatureService as this sample demonstrates APIs unique to mg-desktop MgdFeatureService featureService = (MgdFeatureService)provider.CreateService(MgServiceType.FeatureService); MgMapBase map = _viewer.GetMap(); MgLayerCollection layers = map.GetLayers(); MgLayerGroupCollection groups = map.GetLayerGroups(); //NOTE: mg-desktop has no formal concept of a session repository, but we still //support session-based resources as a form of temporary resource (for the duration //of the application). Session ids in mg-desktop can be any arbitrary string string sessionId = Guid.NewGuid().ToString(); if (layers.IndexOf(layerName) >= 0) { MessageBox.Show("Layer (" + layerName + ") already created"); return; } //---------------------------------------------------// // Create a feature source with point data. // (The Sheboygan sample data does not contain such data, // so we"ll create it.) // Create a feature class definition for the new feature source MgClassDefinition classDefinition = new MgClassDefinition(); classDefinition.SetName("Points"); classDefinition.SetDescription("Feature class with point data."); classDefinition.SetDefaultGeometryPropertyName("GEOM"); MgPropertyDefinitionCollection idProps = classDefinition.GetIdentityProperties(); MgPropertyDefinitionCollection clsProps = classDefinition.GetProperties(); // Create an identify property MgDataPropertyDefinition identityProperty = new MgDataPropertyDefinition("KEY"); identityProperty.SetDataType(MgPropertyType.Int32); identityProperty.SetAutoGeneration(true); identityProperty.SetReadOnly(true); // Add the identity property to the class definition clsProps.Add(identityProperty); idProps.Add(identityProperty); // Create a name property MgDataPropertyDefinition nameProperty = new MgDataPropertyDefinition("NAME"); nameProperty.SetDataType(MgPropertyType.String); // Add the name property to the class definition clsProps.Add(nameProperty); // Create a geometry property MgGeometricPropertyDefinition geometryProperty = new MgGeometricPropertyDefinition("GEOM"); geometryProperty.SetGeometryTypes(MgFeatureGeometricType.Point); // Add the geometry property to the class definition clsProps.Add(geometryProperty); // Create a feature schema MgFeatureSchema featureSchema = new MgFeatureSchema("PointSchema", "Point schema"); MgClassDefinitionCollection classes = featureSchema.GetClasses(); // Add the feature schema to the class definition classes.Add(classDefinition); // Create the feature source String featureSourceName = "Library://Samples/DevGuide/Data/points.FeatureSource"; MgResourceIdentifier resourceIdentifier = new MgResourceIdentifier(featureSourceName); //wkt = "LOCALCS[\"*XY-MT*\",LOCAL_DATUM[\"*X-Y*\",10000],UNIT[\"Meter\", 1],AXIS[\"X\",EAST],AXIS[\"Y\",NORTH]]"; String wkt = "GEOGCS[\"LL84\",DATUM[\"WGS84\",SPHEROID[\"WGS84\",6378137.000,298.25722293]],PRIMEM[\"Greenwich\",0],UNIT[\"Degree\",0.01745329251994]]"; MgCreateSdfParams sdfParams = new MgCreateSdfParams("LatLong", wkt, featureSchema); featureService.CreateFeatureSource(resourceIdentifier, sdfParams); // We need to add some data to the sdf before using it. The spatial context // reader must have an extent. MgBatchPropertyCollection batchPropertyCollection = new MgBatchPropertyCollection(); MgWktReaderWriter wktReaderWriter = new MgWktReaderWriter(); MgAgfReaderWriter agfReaderWriter = new MgAgfReaderWriter(); MgGeometryFactory geometryFactory = new MgGeometryFactory(); // Make four points batchPropertyCollection.Add(MakePoint("Point A", -87.727, 43.748, wktReaderWriter, agfReaderWriter)); batchPropertyCollection.Add(MakePoint("Point B", -87.728, 43.730, wktReaderWriter, agfReaderWriter)); batchPropertyCollection.Add(MakePoint("Point C", -87.726, 43.750, wktReaderWriter, agfReaderWriter)); batchPropertyCollection.Add(MakePoint("Point D", -87.728, 43.750, wktReaderWriter, agfReaderWriter)); // Old way commented out /* // Add the batch property collection to the feature source MgInsertFeatures cmd = new MgInsertFeatures("Points", batchPropertyCollection); MgFeatureCommandCollection featureCommandCollection = new MgFeatureCommandCollection(); featureCommandCollection.Add(cmd); // Execute the "add" commands featureService.UpdateFeatures(resourceIdentifier, featureCommandCollection, false); */ // Here's the mg-desktop way MgPropertyCollection insertResult = featureService.InsertFeatures(resourceIdentifier, "Points", batchPropertyCollection); for (int i = 0; i < insertResult.GetCount(); i++) { MgFeatureProperty fp = insertResult.GetItem(i) as MgFeatureProperty; if (fp != null) { MgFeatureReader fr = fp.GetValue(); fr.Close(); } } // ... //---------------------------------------------------// // Create a new layer LayerDefinitionFactory factory = new LayerDefinitionFactory(); // Create a mark symbol String resourceId = "Library://Samples/Sheboygan/Symbols/BasicSymbols.SymbolLibrary"; String symbolName = "PushPin"; String width = "24"; // unit = points String height = "24"; // unit = points String color = "FFFF0000"; String markSymbol = factory.CreateMarkSymbol(resourceId, symbolName, width, height, color); // Create a text symbol String text = "ID"; String fontHeight = "12"; String foregroundColor = "FF000000"; String textSymbol = factory.CreateTextSymbol(text, fontHeight, foregroundColor); // Create a point rule. String ruleLegendLabel = "trees"; String filter = ""; String pointRule = factory.CreatePointRule(ruleLegendLabel, filter, textSymbol, markSymbol); // Create a point type style. String pointTypeStyle = factory.CreatePointTypeStyle(pointRule); // Create a scale range. String minScale = "0"; String maxScale = "1000000000000"; String pointScaleRange = factory.CreateScaleRange(minScale, maxScale, pointTypeStyle); // Create the layer definiton. String featureName = "PointSchema:Points"; String geometry = "GEOM"; String layerDefinition = factory.CreateLayerDefinition(featureSourceName, featureName, geometry, pointScaleRange); //---------------------------------------------------// // ... XmlDocument domDocument = new XmlDocument(); domDocument.LoadXml(layerDefinition); //Add the layer to the map // TODO: Should probably validate this XML content using (MemoryStream ms = new MemoryStream()) { domDocument.Save(ms); ms.Position = 0L; //Note we do this to ensure our XML content is free of any BOM characters byte[] ldfBytes = ms.ToArray(); Encoding utf8 = Encoding.UTF8; String layerDefStr = new String(utf8.GetChars(ldfBytes)); ldfBytes = new byte[layerDefStr.Length - 1]; int byteCount = utf8.GetBytes(layerDefStr, 1, layerDefStr.Length - 1, ldfBytes, 0); // Save the new layer definition to the session repository MgByteSource byteSource = new MgByteSource(ldfBytes, ldfBytes.Length); MgResourceIdentifier resourceID = new MgResourceIdentifier("Session:" + sessionId + "//" + layerName + ".LayerDefinition"); resourceService.SetResource(resourceID, byteSource.GetReader(), null); //Insert this layer to our map MgdLayer newLayer = new MgdLayer(resourceID, resourceService); newLayer.Name = layerName; newLayer.LegendLabel = legendLabel; newLayer.DisplayInLegend = true; newLayer.SetVisible(true); layers.Insert(0, newLayer); //Create analysis group if not already created if (groups.IndexOf(groupName) < 0) { MgLayerGroup group = new MgLayerGroup(groupName); group.LegendLabel = groupName; group.DisplayInLegend = true; groups.Add(group); newLayer.Group = group; } MessageBox.Show("Layer (" + layerName + ") created"); _viewer.RefreshMap(); IMapLegend legend = Shell.Instance.Legend; if (legend != null) legend.RefreshLegend(); } }
private void btnFindFeaturesInBuffer_Click(object sender, EventArgs e) { MgSelectionBase selection = _viewer.GetSelection(); MgReadOnlyLayerCollection selectedLayers = selection.GetLayers(); if (selectedLayers == null) { MessageBox.Show("Select a parcel"); return; } MgLayerBase parcels = null; for (int i = 0; i < selectedLayers.GetCount(); i++) { MgLayerBase layer = selectedLayers.GetItem(i); if (layer.Name == "Parcels") { parcels = layer; break; } } if (parcels == null) { MessageBox.Show("Select a parcel"); return; } int bufferRingSize = 500; // measured in metres // Set up some objects for coordinate conversion MgMapBase map = _viewer.GetMap(); MgLayerCollection mapLayers = map.GetLayers(); MgMapViewerProvider provider = _viewer.GetProvider(); MgResourceService resourceService = (MgResourceService)provider.CreateService(MgServiceType.ResourceService); //Casting to MgdFeatureService because we want to use convenience APIs MgFeatureService featureService = (MgdFeatureService)provider.CreateService(MgServiceType.FeatureService); string sessionId = Guid.NewGuid().ToString(); String mapWktSrs = map.GetMapSRS(); MgAgfReaderWriter agfReaderWriter = new MgAgfReaderWriter(); MgWktReaderWriter wktReaderWriter = new MgWktReaderWriter(); MgCoordinateSystemFactory coordinateSystemFactory = new MgCoordinateSystemFactory(); MgCoordinateSystem srs = coordinateSystemFactory.Create(mapWktSrs); MgMeasure srsMeasure = srs.GetMeasure(); // Check for a buffer layer. If it exists, delete // the current features. // If it does not exist, create a feature source and // a layer to hold the buffer. BufferHelper helper = new BufferHelper(); MgdLayer bufferLayer = null; int layerIndex = map.GetLayers().IndexOf("Buffer"); if (layerIndex < 0) { // The layer does not exist and must be created. MgResourceIdentifier bufferFeatureResId = new MgResourceIdentifier("Session:" + sessionId + "//Buffer.FeatureSource"); helper.CreateBufferFeatureSource(featureService, mapWktSrs, bufferFeatureResId); bufferLayer = helper.CreateBufferLayer(resourceService, bufferFeatureResId, sessionId); map.GetLayers().Insert(0, bufferLayer); } else { bufferLayer = (MgdLayer)map.GetLayers().GetItem(layerIndex); bufferLayer.DeleteFeatures("ID like '%'"); } // Check for a parcel marker layer. If it exists, delete // the current features. // If it does not exist, create a feature source and // a layer to hold the parcel markers. MgdLayer parcelMarkerLayer = null; layerIndex = map.GetLayers().IndexOf("ParcelMarker"); if (layerIndex < 0) { MgResourceIdentifier parcelFeatureResId = new MgResourceIdentifier("Session:" + sessionId + "//ParcelMarker.FeatureSource"); helper.CreateParcelMarkerFeatureSource(featureService, mapWktSrs, parcelFeatureResId); parcelMarkerLayer = helper.CreateParcelMarkerLayer(resourceService, parcelFeatureResId, sessionId); map.GetLayers().Insert(0, parcelMarkerLayer); } else { parcelMarkerLayer = (MgdLayer)map.GetLayers().GetItem(layerIndex); parcelMarkerLayer.DeleteFeatures("ID like '%'"); } // Check each layer in the selection. for (int i = 0; i < selectedLayers.GetCount(); i++) { // Only check selected features in the Parcels layer. MgdLayer layer = (MgdLayer)selectedLayers.GetItem(i); if (layer.GetName() == "Parcels") { string geomName = layer.GetFeatureGeometryName(); System.Diagnostics.Trace.TraceInformation("Marking all parcels inside the buffer that are of type 'MFG'"); MgFeatureReader featureReader = selection.GetSelectedFeatures(layer, layer.GetFeatureClassName(), false); // Process each item in the MgFeatureReader. Get the // geometries from all the selected features and // merge them into a single geometry. MgGeometryCollection inputGeometries = new MgGeometryCollection(); while (featureReader.ReadNext()) { MgByteReader featureGeometryData = featureReader.GetGeometry(geomName); MgGeometry featureGeometry = agfReaderWriter.Read(featureGeometryData); inputGeometries.Add(featureGeometry); } MgGeometryFactory geometryFactory = new MgGeometryFactory(); MgGeometry mergedGeometries = geometryFactory.CreateMultiGeometry(inputGeometries); // Create a buffer from the merged geometries double bufferDist = srs.ConvertMetersToCoordinateSystemUnits(bufferRingSize); MgGeometry bufferGeometry = mergedGeometries.Buffer(bufferDist, srsMeasure); // Create a filter to select parcels within the buffer. Combine // a basic filter and a spatial filter to select all parcels // within the buffer that are of type "MFG". MgFeatureQueryOptions queryOptions = new MgFeatureQueryOptions(); queryOptions.SetFilter("RTYPE = 'MFG'"); queryOptions.SetSpatialFilter(geomName, bufferGeometry, MgFeatureSpatialOperations.Inside); featureReader = layer.SelectFeatures(queryOptions); // Get the features from the feature source, // determine the centroid of each selected feature, and // add a point to the ParcelMarker layer to mark the // centroid. // Collect all the points into an MgFeatureCommandCollection, // so they can all be added in one operation. MgFeatureCommandCollection parcelMarkerCommands = new MgFeatureCommandCollection(); int inserted = 0; while (featureReader.ReadNext()) { MgByteReader byteReader = featureReader.GetGeometry(geomName); MgGeometry geometry = agfReaderWriter.Read(byteReader); MgPoint point = geometry.GetCentroid(); // Create an insert command for this parcel. MgPropertyCollection properties = new MgPropertyCollection(); properties.Add(new MgGeometryProperty("ParcelLocation", agfReaderWriter.Write(point))); //parcelMarkerCommands.Add(new MgInsertFeatures("ParcelMarkerClass", properties)); MgFeatureReader fr = parcelMarkerLayer.InsertFeatures(properties); fr.Close(); inserted++; } featureReader.Close(); if (inserted == 0) { MessageBox.Show("No parcels within the buffer area match."); return; } // Create a feature in the buffer feature source to show the area covered by the buffer. MgPropertyCollection props = new MgPropertyCollection(); props.Add(new MgGeometryProperty("BufferGeometry", agfReaderWriter.Write(bufferGeometry))); bufferLayer.InsertFeatures(props); // Ensure that the buffer layer is visible and in the legend. bufferLayer.SetVisible(true); bufferLayer.ForceRefresh(); bufferLayer.SetDisplayInLegend(true); parcelMarkerLayer.SetVisible(true); parcelMarkerLayer.ForceRefresh(); MessageBox.Show("Done"); _viewer.RefreshMap(); IMapLegend legend = Shell.Instance.Legend; if (legend != null) legend.RefreshLegend(); } } }
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)); } }
public bool ShowSpatialFilter() { bool result = true; MgUserInformation userInfo = new MgUserInformation(Request["SESSION"]); MgSiteConnection siteConnection = new MgSiteConnection(); siteConnection.Open(userInfo); MgResourceIdentifier sdfResId = new MgResourceIdentifier("Session:" + Request["SESSION"] + "//Filter.FeatureSource"); MgResourceService resourceService = siteConnection.CreateService(MgServiceType.ResourceService) as MgResourceService; MgFeatureService featureService = siteConnection.CreateService(MgServiceType.FeatureService) as MgFeatureService; MgFeatureCommandCollection updateCommands = new MgFeatureCommandCollection(); MgMap map = new MgMap(); map.Open(resourceService, Request["MAPNAME"]); MgLayer layer = null; MgLayerCollection layers = map.GetLayers(); if (layers.Contains("_QuerySpatialFilter")) { layer = (MgLayer)layers.GetItem("_QuerySpatialFilter"); //updateCommands.Add(new MgDeleteFeatures("Filter", "ID > 0")); } else { // Create the Feature Source (SDF) MgFeatureSchema sdfSchema = this.CreateFilterSchema(); MgCreateSdfParams sdfParams = new MgCreateSdfParams("MAPCS", map.GetMapSRS(), sdfSchema); featureService.CreateFeatureSource(sdfResId, sdfParams); // Create the Layer MgResourceIdentifier layerResId = new MgResourceIdentifier("Session:" + Request["SESSION"] + "//Filter.LayerDefinition"); String layerDefinition = File.ReadAllText(GetQueryXmlTemplatePath()); layerDefinition = layerDefinition.Replace("%s", sdfResId.ToString()); MgByteReader reader = new MgByteReader(layerDefinition, "text/xml"); resourceService.SetResource(layerResId, reader, null); layer = new MgLayer(layerResId, resourceService); layer.SetName("_QuerySpatialFilter"); layer.SetLegendLabel("תחום זמני"); layer.SetDisplayInLegend(true); layer.SetSelectable(true); layer.ForceRefresh(); layer.NeedsRefresh(); layers.Insert(0, layer); } // Make the layer visible layer.SetVisible(true); map.Save(resourceService); // Add the geometry to the filter feature source MgPolygon polygon = this.CreatePolygonFromGeomText(Request["GEOMTEXT"].ToString()); MgAgfReaderWriter agfWriter = new MgAgfReaderWriter(); MgByteReader byteReader = agfWriter.Write(polygon); MgPropertyCollection propertyValues = new MgPropertyCollection(); propertyValues.Add(new MgGeometryProperty("Geometry", byteReader)); try { updateCommands.Add(new MgInsertFeatures("Filter", propertyValues)); featureService.UpdateFeatures(sdfResId, updateCommands, false); } catch { } return result; }
protected void Page_Load(object sender, EventArgs e) { if (!Page.IsPostBack) { string sessionId = GetRequestParameters(Request)["SESSION"]; string mapName = GetRequestParameters(Request)["MAPNAME"]; string locale = GetRequestParameters(Request)["LOCALE"]; if (string.IsNullOrEmpty(sessionId)) { Response.Clear(); Response.End(); return; } if (string.IsNullOrEmpty(mapName)) { Response.Clear(); Response.End(); return; } MgResourceService resourceSrvc = GetMgResurceService(sessionId); MgFeatureService featureSrvc = GetMgFeatureService(sessionId); MgMap map = new MgMap(); map.Open(resourceSrvc, mapName); string layernames = GetRequestParameters(Request)["LAYERNAMES"]; string GEOMETRY = GetRequestParameters(Request)["GEOMETRY"]; string selVar = GetRequestParameters(Request)["SELECTIONVARIANT"]; string type = GetRequestParameters(Request)["tp"]; string inputSel = GetRequestParameters(Request)["SELECTION"]; bool hasInputGeom = false; if (!string.IsNullOrEmpty(GEOMETRY)) { hasInputGeom = true; } //selection ima prednost pred podano geometrijo ... MgWktReaderWriter wktrw = new MgWktReaderWriter(); if (!string.IsNullOrEmpty(inputSel)) { MgGeometry inputGeom = MultiGeometryFromSelection(featureSrvc, map, inputSel); GEOMETRY = wktrw.Write(inputGeom); } MgAgfReaderWriter agfRW = new MgAgfReaderWriter(); int nLayer = 0; // pobrišem in zgradim na novo samo tiste, ki imajo zadetke ... int nSloj = 0; string filter = ""; StringBuilder sbOut = new StringBuilder(); sbOut.Append("<table width=\"100%\" class=\"results\">"); sbOut.Append("<tr><td class='header'></td><td class='header'>" + "Layer" + "</td><td class='header' align=\"center\">" + "Select" + "</td><td class='header' align=\"center\">" + "Report" + "</td></tr>"); MgSelection selAll = new MgSelection(map); foreach (MgLayer layer in map.GetLayers()) { if (type != "2") { if (!layer.IsVisible()) { goto nextlay; } } if (layer.LegendLabel == "") { goto nextlay; } try { nLayer++; filter = String.Format("{0} {1} GeomFromText('{2}')", layer.GetFeatureGeometryName(), selVar, GEOMETRY); //preveriti še filter na Layerju. Ker ne gre drugače, je potrebno pogledati v XML MgResourceIdentifier layerDefResId = layer.GetLayerDefinition(); MgByteReader byteReader = resourceSrvc.GetResourceContent(layerDefResId); System.Xml.XmlDocument doc = new System.Xml.XmlDocument(); String xmlLayerDef = byteReader.ToString(); doc.LoadXml(xmlLayerDef); KALI.MGE.Objects.KALILayerDefinition.LayerDefinition ld = KALI.MGE.Objects.KALILayerDefinition.LayerDefinition.Parse(xmlLayerDef); if (!string.IsNullOrEmpty(ld.VectorLayerDefinition.Filter)) { filter += " AND (" + ld.VectorLayerDefinition.Filter + ")"; } //query the features MgFeatureQueryOptions opts = new MgFeatureQueryOptions(); opts.SetFilter(filter); String featureClassName = layer.GetFeatureClassName(); MgResourceIdentifier srcId = new MgResourceIdentifier(layer.GetFeatureSourceId()); MgFeatureReader features = featureSrvc.SelectFeatures(srcId, featureClassName, opts); bool hasResult = features.ReadNext(); if (hasResult) { nSloj++; int n = 0; MgClassDefinition classDef = features.GetClassDefinition(); MgPropertyDefinitionCollection classDefProps = classDef.GetIdentityProperties(); ArrayList idPropNames = new ArrayList(classDefProps.GetCount()); for (int j = 0; j < classDefProps.GetCount(); j++) { MgPropertyDefinition idProp = classDefProps.GetItem(j); idPropNames.Add(idProp.GetName()); } MgSelection sel = new MgSelection(map); do { // Generate XML to selection this feature MgPropertyCollection idProps = new MgPropertyCollection(); foreach (string id in idPropNames) { int idPropType = features.GetPropertyType(id); switch (idPropType) { case MgPropertyType.Int32: idProps.Add(new MgInt32Property(id, features.GetInt32(id))); break; case MgPropertyType.String: idProps.Add(new MgStringProperty(id, features.GetString(id))); break; case MgPropertyType.Int64: idProps.Add(new MgInt64Property(id, features.GetInt64(id))); break; case MgPropertyType.Double: idProps.Add(new MgDoubleProperty(id, features.GetDouble(id))); break; case MgPropertyType.Single: idProps.Add(new MgSingleProperty(id, features.GetSingle(id))); break; case MgPropertyType.DateTime: idProps.Add(new MgDateTimeProperty(id, features.GetDateTime(id))); break; default: //throw new SearchError(String.Format(MgLocalizer.GetString("SEARCHTYYPENOTSUP", locale), new Object[] { idPropType.ToString() }), searchError); break; } } sel.AddFeatureIds(layer, featureClassName, idProps); selAll.AddFeatureIds(layer, featureClassName, idProps); n++; //if (n > 1000) break; } while (features.ReadNext()); features.Close(); features.Dispose(); string selText = EscapeForHtml(sel.ToXml()); string seljs = "<div class=\"allLay\" onclick=\"parent.SetSelectionXML('" + selText + "');\"><img width=\"16\" height=\"16\" style=\"border:0\" src=\"images/mActionZoomToSelected.png\"/></div>"; string seljs3 = "<div class=\"allLay\" onclick=\"parent.MultiGridShow('" + selText + "');\"><img width=\"16\" height=\"16\" style=\"border:0\" src=\"images/mActionOpenTable.png\"/></div>"; string linfo = "<b>" + layer.LegendLabel + "</b><br />" + n.ToString() + " " + "Hits"; sbOut.Append("<tr><td class=\"results\">" + nSloj.ToString() + "</td><td class=\"results\">" + linfo + "</td><td align=\"center\" class=\"results\">" + seljs + "</td><td align=\"center\" class=\"results\">" + seljs3 + "</td></tr>"); } } catch (Exception) { continue; } nextlay: continue; } sbOut.Append("</table>"); string selAllText = EscapeForHtml(selAll.ToXml()); string seljsAll = "<div class=\"allLay\" onclick=\"parent.SetSelectionXML('" + selAllText + "');\"><img width=\"16\" height=\"16\" style=\"border:0\" src=\"images/mActionZoomToSelected.png\"/>" + "Select All" + "</div>"; string seljsAll3 = "<div class=\"allLay\" onclick=\"parent.MultiGridShow('" + selAllText + "');\"><img width=\"16\" height=\"16\" style=\"border:0\" src=\"images/mActionOpenTable.png\"/>" + "Report All" + "</div>"; sbOut.Append(string.Format("<br /><table width=\"100%\" class=\"results\"><tr><td class=\"results\">{0}</td><td class=\"results\">{1}</td></tr></table>", seljsAll, seljsAll3)); featureSrvc.Dispose(); resourceSrvc.Dispose(); if (nSloj > 0) { litPrebodi.Text = sbOut.ToString(); } else { litPrebodiTitle.Visible = false; litPrebodi.Text = "<b>" + "None layer lies below the selected item/area!" + "</b>"; } MgGeometry inGeom = wktrw.Read(GEOMETRY); double rw = map.ViewScale / Math.Sqrt(inGeom.Area); //koordinate if (hasInputGeom & rw > 400) { string output = ""; output = pointTransformAndWriteZ(GEOMETRY, map); litKoordinate.Text = output; litKoordinateTitle.Text = "Coordinates of selected points:"; } } }
static GeomConverter() { _agfRw = new MgAgfReaderWriter(); _wktRw = new MgWktReaderWriter(); }
private void btnCreatePointsOfInterest_Click(object sender, EventArgs e) { string layerName = "Points"; string legendLabel = "Points of Interest"; string groupName = "Analysis"; MgMapViewerProvider provider = _viewer.GetProvider(); MgResourceService resourceService = (MgResourceService)provider.CreateService(MgServiceType.ResourceService); //We use MgdFeatureService instead of MgFeatureService as this sample demonstrates APIs unique to mg-desktop MgdFeatureService featureService = (MgdFeatureService)provider.CreateService(MgServiceType.FeatureService); MgMapBase map = _viewer.GetMap(); MgLayerCollection layers = map.GetLayers(); MgLayerGroupCollection groups = map.GetLayerGroups(); //NOTE: mg-desktop has no formal concept of a session repository, but we still //support session-based resources as a form of temporary resource (for the duration //of the application). Session ids in mg-desktop can be any arbitrary string string sessionId = Guid.NewGuid().ToString(); if (layers.IndexOf(layerName) >= 0) { MessageBox.Show("Layer (" + layerName + ") already created"); return; } //---------------------------------------------------// // Create a feature source with point data. // (The Sheboygan sample data does not contain such data, // so we"ll create it.) // Create a feature class definition for the new feature source MgClassDefinition classDefinition = new MgClassDefinition(); classDefinition.SetName("Points"); classDefinition.SetDescription("Feature class with point data."); classDefinition.SetDefaultGeometryPropertyName("GEOM"); MgPropertyDefinitionCollection idProps = classDefinition.GetIdentityProperties(); MgPropertyDefinitionCollection clsProps = classDefinition.GetProperties(); // Create an identify property MgDataPropertyDefinition identityProperty = new MgDataPropertyDefinition("KEY"); identityProperty.SetDataType(MgPropertyType.Int32); identityProperty.SetAutoGeneration(true); identityProperty.SetReadOnly(true); // Add the identity property to the class definition clsProps.Add(identityProperty); idProps.Add(identityProperty); // Create a name property MgDataPropertyDefinition nameProperty = new MgDataPropertyDefinition("NAME"); nameProperty.SetDataType(MgPropertyType.String); // Add the name property to the class definition clsProps.Add(nameProperty); // Create a geometry property MgGeometricPropertyDefinition geometryProperty = new MgGeometricPropertyDefinition("GEOM"); geometryProperty.SetGeometryTypes(MgFeatureGeometricType.Point); // Add the geometry property to the class definition clsProps.Add(geometryProperty); // Create a feature schema MgFeatureSchema featureSchema = new MgFeatureSchema("PointSchema", "Point schema"); MgClassDefinitionCollection classes = featureSchema.GetClasses(); // Add the feature schema to the class definition classes.Add(classDefinition); // Create the feature source String featureSourceName = "Library://Samples/DevGuide/Data/points.FeatureSource"; MgResourceIdentifier resourceIdentifier = new MgResourceIdentifier(featureSourceName); //wkt = "LOCALCS[\"*XY-MT*\",LOCAL_DATUM[\"*X-Y*\",10000],UNIT[\"Meter\", 1],AXIS[\"X\",EAST],AXIS[\"Y\",NORTH]]"; String wkt = "GEOGCS[\"LL84\",DATUM[\"WGS84\",SPHEROID[\"WGS84\",6378137.000,298.25722293]],PRIMEM[\"Greenwich\",0],UNIT[\"Degree\",0.01745329251994]]"; MgFileFeatureSourceParams sdfParams = new MgFileFeatureSourceParams("OSGeo.SDF", "LatLong", wkt, featureSchema); featureService.CreateFeatureSource(resourceIdentifier, sdfParams); // We need to add some data to the sdf before using it. The spatial context // reader must have an extent. MgBatchPropertyCollection batchPropertyCollection = new MgBatchPropertyCollection(); MgWktReaderWriter wktReaderWriter = new MgWktReaderWriter(); MgAgfReaderWriter agfReaderWriter = new MgAgfReaderWriter(); MgGeometryFactory geometryFactory = new MgGeometryFactory(); // Make four points batchPropertyCollection.Add(MakePoint("Point A", -87.727, 43.748, wktReaderWriter, agfReaderWriter)); batchPropertyCollection.Add(MakePoint("Point B", -87.728, 43.730, wktReaderWriter, agfReaderWriter)); batchPropertyCollection.Add(MakePoint("Point C", -87.726, 43.750, wktReaderWriter, agfReaderWriter)); batchPropertyCollection.Add(MakePoint("Point D", -87.728, 43.750, wktReaderWriter, agfReaderWriter)); // Old way commented out /* * // Add the batch property collection to the feature source * MgInsertFeatures cmd = new MgInsertFeatures("Points", batchPropertyCollection); * MgFeatureCommandCollection featureCommandCollection = new MgFeatureCommandCollection(); * featureCommandCollection.Add(cmd); * * // Execute the "add" commands * featureService.UpdateFeatures(resourceIdentifier, featureCommandCollection, false); */ // Here's the mg-desktop way MgFeatureReader insertResult = featureService.InsertFeatures(resourceIdentifier, "Points", batchPropertyCollection); insertResult.Close(); // ... //---------------------------------------------------// // Create a new layer LayerDefinitionFactory factory = new LayerDefinitionFactory(); // Create a mark symbol String resourceId = "Library://Samples/Sheboygan/Symbols/BasicSymbols.SymbolLibrary"; String symbolName = "PushPin"; String width = "24"; // unit = points String height = "24"; // unit = points String color = "FFFF0000"; String markSymbol = factory.CreateMarkSymbol(resourceId, symbolName, width, height, color); // Create a text symbol String text = "ID"; String fontHeight = "12"; String foregroundColor = "FF000000"; String textSymbol = factory.CreateTextSymbol(text, fontHeight, foregroundColor); // Create a point rule. String ruleLegendLabel = "trees"; String filter = ""; String pointRule = factory.CreatePointRule(ruleLegendLabel, filter, textSymbol, markSymbol); // Create a point type style. String pointTypeStyle = factory.CreatePointTypeStyle(pointRule); // Create a scale range. String minScale = "0"; String maxScale = "1000000000000"; String pointScaleRange = factory.CreateScaleRange(minScale, maxScale, pointTypeStyle); // Create the layer definiton. String featureName = "PointSchema:Points"; String geometry = "GEOM"; String layerDefinition = factory.CreateLayerDefinition(featureSourceName, featureName, geometry, pointScaleRange); //---------------------------------------------------// // ... XmlDocument domDocument = new XmlDocument(); domDocument.LoadXml(layerDefinition); //Add the layer to the map // TODO: Should probably validate this XML content using (MemoryStream ms = new MemoryStream()) { domDocument.Save(ms); ms.Position = 0L; //Note we do this to ensure our XML content is free of any BOM characters byte[] ldfBytes = ms.ToArray(); Encoding utf8 = Encoding.UTF8; String layerDefStr = new String(utf8.GetChars(ldfBytes)); ldfBytes = new byte[layerDefStr.Length - 1]; int byteCount = utf8.GetBytes(layerDefStr, 1, layerDefStr.Length - 1, ldfBytes, 0); // Save the new layer definition to the session repository MgByteSource byteSource = new MgByteSource(ldfBytes, ldfBytes.Length); MgResourceIdentifier resourceID = new MgResourceIdentifier("Session:" + sessionId + "//" + layerName + ".LayerDefinition"); resourceService.SetResource(resourceID, byteSource.GetReader(), null); //Insert this layer to our map MgdLayer newLayer = new MgdLayer(resourceID, resourceService); newLayer.Name = layerName; newLayer.LegendLabel = legendLabel; newLayer.DisplayInLegend = true; newLayer.SetVisible(true); layers.Insert(0, newLayer); //Create analysis group if not already created if (groups.IndexOf(groupName) < 0) { MgLayerGroup group = new MgLayerGroup(groupName); group.LegendLabel = groupName; group.DisplayInLegend = true; groups.Add(group); newLayer.Group = group; } MessageBox.Show("Layer (" + layerName + ") created"); _viewer.RefreshMap(); IMapLegend legend = Shell.Instance.Legend; if (legend != null) { legend.RefreshLegend(); } } }