public void Execute(IPlatformFactory factory, ITestLogger logger) { var wkt = new MgWktReaderWriter(); MgPoint geom1 = wkt.Read("POINT XY (1.0 1.0)") as MgPoint; MgPoint geom2 = wkt.Read("POINT XY (2.0 2.0)") as MgPoint; MgPoint geom3 = wkt.Read("POINT XY (1.0 1.0)") as MgPoint; MgGeometryCollection coll = new MgGeometryCollection(); coll.Add(geom1); coll.Add(geom2); coll.Add(geom3); Assert.AreEqual(3, coll.Count); Assert.IsTrue(geom1.Equals(coll[0])); Assert.IsTrue(coll[0].Equals(coll[2])); Assert.IsFalse(coll[0].Equals(coll[1])); coll[0] = coll[1]; Assert.IsTrue(coll[0].Equals(coll[1])); double x = 0.0; foreach (MgGeometry geom in coll) { x += (geom as MgPoint).GetCoordinate().GetX(); } Assert.AreEqual(5.0, x); }
public MgMultiGeometry CreateMultiGeometry() { MgGeometryCollection geometries = new MgGeometryCollection(); MgGeometry geometry = null; // CurvePolygon geometry = (MgGeometry)CreateCurvePolygon(0, 1); geometries.Add(geometry); // CurveString // Not doing CurveString because of some unfixed defect. // It may be the same one that sometimes affects MultiPolygon. geometry = (MgGeometry)CreateCurveString(100); geometries.Add(geometry); // LineString geometry = (MgGeometry)CreateLineString(1.0); geometries.Add(geometry); // Point geometry = (MgGeometry)CreatePoint(); geometries.Add(geometry); // Polygon geometry = CreatePolygon(0.0); geometries.Add(geometry); // Make MultiGeometry from the many geometries collected above. return(factory.CreateMultiGeometry(geometries)); }
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 void Execute(IPlatformFactory factory, ITestLogger logger) { MgGeometryFactory gf = new MgGeometryFactory(); MgCoordinate pt1 = gf.CreateCoordinateXY(0, 0); MgCoordinate pt2 = gf.CreateCoordinateXY(0, 10); MgCoordinate pt3 = gf.CreateCoordinateXY(10, 10); MgCoordinate pt4 = gf.CreateCoordinateXY(10, 0); MgCoordinateCollection coordinates = new MgCoordinateCollection(); coordinates.Add(pt1); coordinates.Add(pt2); coordinates.Add(pt3); coordinates.Add(pt4); MgLineString ls = gf.CreateLineString(coordinates); MgGeometryCollection geometries = new MgGeometryCollection(); geometries.Add(ls); MgMultiGeometry mg = gf.CreateMultiGeometry(geometries); Assert.AreEqual(1, mg.Count); Assert.AreEqual(MgGeometryType.MultiGeometry, mg.GeometryType); Assert.AreEqual(4, mg.Dimension); }
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 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 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; } }
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 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(); } } } }
public void GeometryCollection() { MgPoint geom1 = wkt.Read("POINT XY (1.0 1.0)") as MgPoint; MgPoint geom2 = wkt.Read("POINT XY (2.0 2.0)") as MgPoint; MgPoint geom3 = wkt.Read("POINT XY (1.0 1.0)") as MgPoint; MgGeometryCollection coll = new MgGeometryCollection(); coll.Add(geom1); coll.Add(geom2); coll.Add(geom3); Assert.AreEqual(3, coll.Count); Assert.IsTrue(geom1.Equals(coll[0])); Assert.IsTrue(coll[0].Equals(coll[2])); Assert.IsFalse(coll[0].Equals(coll[1])); coll[0] = coll[1]; Assert.IsTrue(coll[0].Equals(coll[1])); double x = 0.0; foreach (MgGeometry geom in coll) { x += (geom as MgPoint).GetCoordinate().GetX(); } Assert.AreEqual(5.0, x); }
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 void MultiGeometry() { MgGeometryFactory gf = new MgGeometryFactory(); MgCoordinate pt1 = gf.CreateCoordinateXY(0, 0); MgCoordinate pt2 = gf.CreateCoordinateXY(0, 10); MgCoordinate pt3 = gf.CreateCoordinateXY(10, 10); MgCoordinate pt4 = gf.CreateCoordinateXY(10, 0); MgCoordinateCollection coordinates = new MgCoordinateCollection(); coordinates.Add(pt1); coordinates.Add(pt2); coordinates.Add(pt3); coordinates.Add(pt4); MgLineString ls = gf.CreateLineString(coordinates); MgGeometryCollection geometries = new MgGeometryCollection(); geometries.Add(ls); MgMultiGeometry mg = gf.CreateMultiGeometry(geometries); Assert.AreEqual(1, mg.Count); Assert.AreEqual(MgGeometryType.MultiGeometry, mg.GeometryType); Assert.AreEqual(4, mg.Dimension); }
public string getPlanMapImageAsBase64String(string planID, string imageWidth, string imageHeight) { try { MgUserInformation userInfo = null; string mapWebTierInit = ConfigurationManager.AppSettings["MGWebTierInit"].ToString(); MapGuideApi.MgInitializeWebTier(mapWebTierInit); // Om kartsession finns för applikationssession använd den annars skapa ny kartssitesession string mapSiteSessionID = null; if (Session["MapSiteSessionID"] != null) { mapSiteSessionID = Session["MapSiteSessionID"].ToString(); userInfo = new MgUserInformation(mapSiteSessionID); } else { // Initierar kartsite och kartsession string mapUserName = ConfigurationManager.AppSettings["MGUserName"].ToString(); string mapUserPass = ConfigurationManager.AppSettings["MGUserPass"].ToString(); userInfo = new MgUserInformation(mapUserName, mapUserPass); MgSite mapSite = new MgSite(); mapSite.Open(userInfo); userInfo.Dispose(); mapSiteSessionID = mapSite.CreateSession(); //mapSite.Close(); Session["MapSiteSessionID"] = mapSiteSessionID; userInfo = new MgUserInformation(mapSiteSessionID); } //bool test = resSvc.ResourceExists(mapResId); string mapSurfaceFactor = ConfigurationManager.AppSettings["MGMapSurfaceFactor"].ToString(); string mapRes = ConfigurationManager.AppSettings["MGMapResource"].ToString(); string planRes = ConfigurationManager.AppSettings["MGPlanytorResource"].ToString(); string planClassName = ConfigurationManager.AppSettings["MGPlanytorClassName"].ToString(); string planFilterColumn = ConfigurationManager.AppSettings["MGPlanytorFilterColumn"].ToString(); string planGeometryColumn = ConfigurationManager.AppSettings["MGPlanytorGeometryColumn"].ToString(); string planytorStrokeRgbaColor = ConfigurationManager.AppSettings["MGPlanytorStrokeRgbaColor"].ToString(); string planytorForegroundRgbaColor = ConfigurationManager.AppSettings["MGPlanytorForegroundRgbaColor"].ToString(); string mapImageSizeFromServer = ConfigurationManager.AppSettings["MGMapImageSizeFromServer"].ToString(); // Standardvärde för storlek på kartbild, används om värde ej finns i Settings.config eller skickas in som parametrar i webbmetod string mapImageWidthPixel = "400"; string mapImageHeightPixel = "300"; // Väljer bredd och höjd på kartbild om värde ska finnas i Settings.config samt indikeras att de ska användas // annars förväntas värde skickas med i webbmetod if (mapImageSizeFromServer.ToLower() == "true") { mapImageWidthPixel = ConfigurationManager.AppSettings["MGMapImageWidth"].ToString(); mapImageHeightPixel = ConfigurationManager.AppSettings["MGMapImageHeight"].ToString(); } else { if (!string.IsNullOrWhiteSpace(imageWidth) && !string.IsNullOrWhiteSpace(imageHeight)) { mapImageWidthPixel = imageWidth; mapImageHeightPixel = imageHeight; } } MgSiteConnection siteConnection = new MgSiteConnection(); siteConnection.Open(userInfo); MgResourceService resSvc = (MgResourceService)siteConnection.CreateService(MgServiceType.ResourceService); MgResourceIdentifier mapResId = new MgResourceIdentifier(mapRes); MgFeatureService featSvc = (MgFeatureService)siteConnection.CreateService(MgServiceType.FeatureService); MgResourceIdentifier planResId = new MgResourceIdentifier(planRes); // Filter för planDoc efter planDoc-ID MgFeatureQueryOptions featureQuery = new MgFeatureQueryOptions(); featureQuery.SetFilter(planFilterColumn + " = " + planID); MgFeatureReader featureReader = featSvc.SelectFeatures(planResId, planClassName, featureQuery); MgByteReader byteReaderGeometry = null; MgAgfReaderWriter agfReaderWriter = new MgAgfReaderWriter(); MgGeometryCollection geometryCollection = new MgGeometryCollection(); int featureCount = 0; try { while (featureReader.ReadNext()) { byteReaderGeometry = featureReader.GetGeometry(planGeometryColumn); MgGeometry districtGeometry = agfReaderWriter.Read(byteReaderGeometry); geometryCollection.Add(districtGeometry); featureCount++; } } finally { featureReader.Close(); } MgGeometryFactory geometryFactory = new MgGeometryFactory(); MgMultiGeometry multiGeometry = geometryFactory.CreateMultiGeometry(geometryCollection); MgMap map = new MgMap(siteConnection); MgEnvelope envelope = multiGeometry.Envelope(); // Anpassar ev. punkt till komma i tal som hanteras som textsträng för kommande konvertering if (mapImageHeightPixel.IndexOf(".") != -1) { mapImageHeightPixel = mapImageHeightPixel.Replace(".", ","); } if (mapImageWidthPixel.IndexOf(".") != -1) { mapImageWidthPixel = mapImageWidthPixel.Replace(".", ","); } // Önskad bilds höjd och bredd i punkter double imageHeightPixel = Convert.ToDouble(mapImageHeightPixel); double imageWidthPixel = Convert.ToDouble(mapImageWidthPixel); map.DisplayDpi = 120; double heightEnvelopeN = envelope.Height; double widthEnvelopeE = envelope.Width; // Anpassar utbredningen på sökta planer (envelope) till bildens format för att bevara skalriktighet string mapFarthest = string.Empty; if (heightEnvelopeN > widthEnvelopeE) mapFarthest = "height"; else mapFarthest = "width"; string imageFarthest = string.Empty; if (imageHeightPixel > imageWidthPixel) imageFarthest = "height"; else imageFarthest = "width"; double scale = 1.0; const double inch = 2.54; // Ändring av kartans utbredning och addering av utrymme i kartans bild runt planavgränsningen // Map = avgränsning enligt planytan (utbredning i kartan), Image = önskad bild att skapa med kartan // Om: kartans höjd är längst & bildens bredd är längst if (mapFarthest == "height" && imageFarthest == "width") { scale = imageWidthPixel / imageHeightPixel * inch; widthEnvelopeE = imageWidthPixel / imageHeightPixel * heightEnvelopeN * scale; } // Om: kartans bredd är längst & bildens höjd är längst else if (mapFarthest == "width" && imageFarthest == "height") { scale = imageHeightPixel / imageWidthPixel * inch; heightEnvelopeN = imageHeightPixel / imageWidthPixel * widthEnvelopeE * scale; } // Om: kartans höjd är längst & bildens höjd är längst else if (mapFarthest == "height" && imageFarthest == "height") { double compareSide = (heightEnvelopeN / (imageHeightPixel / imageWidthPixel)); bool isCompareSideFarthest = false; if (compareSide > widthEnvelopeE) { isCompareSideFarthest = true; } else { isCompareSideFarthest = false; } scale = imageHeightPixel / imageWidthPixel * inch; if (isCompareSideFarthest) { widthEnvelopeE = heightEnvelopeN / (imageHeightPixel / imageWidthPixel) * scale; } else { heightEnvelopeN = (imageHeightPixel / imageWidthPixel) * widthEnvelopeE * scale; } } // Om(annars): kartans bredd är längst & bildens bredd är längst else { double compareSide = (widthEnvelopeE / (imageWidthPixel / imageHeightPixel)); bool isCompareSideFarthest = false; if (compareSide > heightEnvelopeN) { isCompareSideFarthest = true; } else { isCompareSideFarthest = false; } scale = imageWidthPixel / imageHeightPixel * inch; if (isCompareSideFarthest) { heightEnvelopeN = widthEnvelopeE / (imageWidthPixel / imageHeightPixel) * scale; } else { widthEnvelopeE = heightEnvelopeN * (imageWidthPixel / imageHeightPixel) * scale; } } double mapSurfaceFactorDbl = Convert.ToDouble(mapSurfaceFactor.Replace('.', ',')); double newHeightN = heightEnvelopeN * mapSurfaceFactorDbl; double newWidthE = widthEnvelopeE * mapSurfaceFactorDbl; MgCoordinate lowerLeft = envelope.LowerLeftCoordinate; MgCoordinate upperRight = envelope.UpperRightCoordinate; envelope = new MgEnvelope(lowerLeft.X - (newWidthE - widthEnvelopeE) / 2, lowerLeft.Y - (newHeightN - heightEnvelopeN) / 2, upperRight.X + (newWidthE - widthEnvelopeE) / 2, upperRight.Y + (newHeightN - heightEnvelopeN) / 2); map.Create(resSvc, mapResId, mapResId.Name); // Skapa lagerdefinition i XML DefineAreaLayer areaLayer = new DefineAreaLayer(); areaLayer.FeatureName = planClassName; areaLayer.FeatureSourceName = planRes; areaLayer.GeometryColumnName = planGeometryColumn; areaLayer.Filter = planFilterColumn + " = " + planID; LayerScaleRangeCollection lsrCollection = new LayerScaleRangeCollection(); LayerScaleRange lsr = new LayerScaleRange(); // MinScale applikations-default till 0 (inklusive) om utelämnat, MaxScale applikations-default till kartans maxskala (exklusive) om utelämnat //lsr.MinScale = "0"; //lsr.MaxScale = "100000000"; AreaTypeStyle ats = new AreaTypeStyle(); AreaRuleCollection arCollection = new AreaRuleCollection(); AreaRule ar = new AreaRule(); //ar.Filter = planFilterColumn + " = " + planID; ar.LegendLabel = "Plan" + planID; AreaSymbolization2D symb2D = new AreaSymbolization2D(); Fill fill = new Fill(); fill.BackgroundColor = "FFFF0000"; fill.FillPattern = "Solid"; fill.ForegroundColor = convertRgbsToHexColor(planytorForegroundRgbaColor); Stroke stroke = new Stroke(); stroke.Color = convertRgbsToHexColor(planytorStrokeRgbaColor); stroke.LineStyle = "Solid"; stroke.Thickness = "1"; stroke.Unit = "Points"; symb2D.Fill = fill; symb2D.Stroke = stroke; ar.Symbolization2D = symb2D; arCollection.Add(ar); ats.AreaRules = arCollection; lsr.AreaTypeStyle = ats; lsrCollection.Add(lsr); areaLayer.LayerScaleRanges = lsrCollection; XmlDocument xmlFile = new XmlDocument(); //XDocument xmlFile = new XDocument(); // om returnerande av xml-dokument //xmlFile = areaLayer.CreateLayerDefinitionAsXmlDocument(); // om returnerande av xml-sträng xmlFile.LoadXml(areaLayer.CreateLayerDefinitionAsXmlString()); //xmlFile = areaLayer.CreateLayerDefinitionAsXDocument(); //xmlFile.Save(Server.MapPath(this.Context.Request.ApplicationPath) + "XmlTestLayerDefinition.xml"); using (MemoryStream msNewPlanLayer = new MemoryStream()) { xmlFile.Save(msNewPlanLayer); msNewPlanLayer.Position = 0L; //Note we do this to ensure our XML content is free of any BOM characters byte[] layerDefinition = msNewPlanLayer.ToArray(); Encoding utf8 = Encoding.UTF8; String layerDefStr = new String(utf8.GetChars(layerDefinition)); layerDefinition = new byte[layerDefStr.Length - 1]; int byteCount = utf8.GetBytes(layerDefStr, 1, layerDefStr.Length - 1, layerDefinition, 0); // Save the new layer definition to the session repository MgByteSource byteSource = new MgByteSource(layerDefinition, layerDefinition.Length); MgResourceIdentifier layerResourceID = new MgResourceIdentifier("Session:" + mapSiteSessionID + "//" + "planytor" + ".LayerDefinition"); //"SearchedPlan" + planID + ".LayerDefinition"); resSvc.SetResource(layerResourceID, byteSource.GetReader(), null); MgLayer newPlanLayer = new MgLayer(layerResourceID, resSvc); newPlanLayer.SetName("Sökta planer"); newPlanLayer.SetVisible(true); newPlanLayer.SetLegendLabel("Sökta planer"); newPlanLayer.SetDisplayInLegend(true); MgLayerCollection layerCollection = map.GetLayers(); if (!layerCollection.Contains(newPlanLayer)) { // Insert the new layer at position 0 so it is at the top // of the drawing order layerCollection.Insert(0, newPlanLayer); } else { layerCollection.Remove(newPlanLayer); layerCollection.Insert(0, newPlanLayer); } map.Save(); } double mapScale = map.ViewScale; // XML-dokument till ren text //StringWriter stringWriter = new StringWriter(); //XmlWriter xmlTextWriter = XmlWriter.Create(stringWriter); //xmlFile.WriteTo(xmlTextWriter); //xmlTextWriter.Flush(); string xmlSelection = string.Empty; //string xmlSelection = stringWriter.GetStringBuilder().ToString(); MgSelection selection = null; if (!string.IsNullOrEmpty(xmlSelection)) { selection = new MgSelection(map, xmlSelection); } else { selection = new MgSelection(map); } MgColor color = new MgColor("255,255,255"); // Skapar bild av kartan MgRenderingService renderingService = (MgRenderingService)siteConnection.CreateService(MgServiceType.RenderingService); //MgByteReader byteReader = renderingService.RenderMap(map, selection, "PNG"); MgByteReader byteReader = renderingService.RenderMap(map, selection, envelope, Convert.ToInt32(imageWidthPixel), Convert.ToInt32(imageHeightPixel), color, "PNG"); MemoryStream ms = new MemoryStream(); byte[] byteBuffer = new byte[1024]; int numBytes = byteReader.Read(byteBuffer, 1024); while (numBytes > 0) { ms.Write(byteBuffer, 0, numBytes); numBytes = byteReader.Read(byteBuffer, 1024); } byte[] mapImageByte = ms.ToArray(); string imageBase64String = Convert.ToBase64String(mapImageByte); map.Dispose(); siteConnection.Dispose(); DataTable dtResult = new DataTable(); DataColumn dc = new DataColumn("MAPIMAGEBASE64"); dtResult.Columns.Add(dc); dc = new DataColumn("WIDTH"); dtResult.Columns.Add(dc); dc = new DataColumn("HEIGHT"); dtResult.Columns.Add(dc); DataRow dr = dtResult.NewRow(); dr["MAPIMAGEBASE64"] = imageBase64String; dr["WIDTH"] = imageWidthPixel; dr["HEIGHT"] = imageHeightPixel; dtResult.Rows.Add(dr); //TODO: MAP: Vad kan returneras, base64 eller länk där bild temporärt genereras på server //JavaScriptSerializer jsonSerializer = new JavaScriptSerializer(); //return jsonSerializer.Serialize(imageBase64String); return getDatatableAsJson(dtResult); } catch (System.Exception ex) { UtilityException.LogException(ex, "Webbmetod : getPlanMapImageAsBase64String", true); return null; } }
public MgMultiGeometry CreateMultiGeometry() { MgGeometryCollection geometries = new MgGeometryCollection(); MgGeometry geometry = null; // CurvePolygon geometry = (MgGeometry)CreateCurvePolygon(0, 1); geometries.Add(geometry); // CurveString // Not doing CurveString because of some unfixed defect. // It may be the same one that sometimes affects MultiPolygon. geometry = (MgGeometry)CreateCurveString(100); geometries.Add(geometry); // LineString geometry = (MgGeometry)CreateLineString(1.0); geometries.Add(geometry); // Point geometry = (MgGeometry)CreatePoint(); geometries.Add(geometry); // Polygon geometry = CreatePolygon(0.0); geometries.Add(geometry); // Make MultiGeometry from the many geometries collected above. return factory.CreateMultiGeometry(geometries); }
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; } }
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)); } }