public static GeometryServiceOperationHelper GetProjectionHelper(EventHandler <ProjectGraphicsCompletedEventArgs> projectGraphicsCompleted, EventHandler <ProjectPointsCompletedEventArgs> projectPointsCompleted = null)
{
string geometryServiceUrl = new ConfigurationStoreHelper().GetGeometryServiceUrl(ConfigurationStoreProvider.DefaultConfigurationStore);
if (string.IsNullOrEmpty(geometryServiceUrl))
{
System.Diagnostics.Debug.WriteLine("Must specify GeometryServiceUrl if spatial reference of the Map and the layer do not match");
return(null);
}
GeometryServiceOperationHelper helper = new GeometryServiceOperationHelper(geometryServiceUrl);
helper.ProjectGraphicsCompleted += projectGraphicsCompleted;
helper.ProjectPointsCompleted += projectPointsCompleted;
return(helper);
}
protected virtual void OnGraphicsCreated(GraphicCollection graphics, bool clearGraphics, EventHandler onGraphicsAddComplete)
{
if (graphics == null)
{
return;
}
if (MapSpatialReference == null || MapSpatialReference.Equals(LayerSpatialReference))
{
Graphics = graphics; // map spatial reference was unspecified => we assume points match the spatial ref of the match (responsbility is on the developer)
OnUpdateCompleted(EventArgs.Empty);
UpdateCursorForRenderer();
if (onGraphicsAddComplete != null)
{
onGraphicsAddComplete(this, EventArgs.Empty);
}
}
else
{
GeometryServiceOperationHelper projectionHelper = GetProjectionHelper((s, e) =>
{
if (clearGraphics)
{
Graphics = new GraphicCollection();
}
foreach (Graphic g2 in e.Graphics)
{
Graphics.Add(g2);
}
OnUpdateCompleted(EventArgs.Empty);
UpdateCursorForRenderer();
if (onGraphicsAddComplete != null)
{
onGraphicsAddComplete(this, EventArgs.Empty);
}
});
if (projectionHelper != null)
{
projectionHelper.ProjectGraphics(graphics, MapSpatialReference);
}
}
}
void findNearbyToolWindow_FindNearby(object sender, FindNearbyEventArgs e)
{
if (Layer == null)
return;
GraphicsLayer graphicsLayer = Layer as GraphicsLayer;
if (graphicsLayer == null)
return;
if (graphicsLayer.SelectionCount < 1)
{
findNearbyToolWindow.StopBusyIndicator();
MessageBoxDialog.Show(Resources.Strings.MsgNoFeaturesSelected, Resources.Strings.ErrorCaption, MessageBoxButton.OK);
return;
}
BufferParameters bufferParams = new BufferParameters();
switch (e.LinearUnit)
{
case LinearUnit.Miles:
bufferParams.Unit = ESRI.ArcGIS.Client.Tasks.LinearUnit.StatuteMile;
break;
case LinearUnit.Meters:
bufferParams.Unit = ESRI.ArcGIS.Client.Tasks.LinearUnit.Meter;
break;
case LinearUnit.Kilometers:
bufferParams.Unit = ESRI.ArcGIS.Client.Tasks.LinearUnit.Kilometer;
break;
}
bufferParams.UnionResults = true;
bufferParams.OutSpatialReference = Map.SpatialReference;
SpatialReference gcs = new SpatialReference(4326);
bufferParams.BufferSpatialReference = gcs;
bufferParams.Geodesic = true;
bufferParams.Distances.Add(e.Distance);
// Check the spatial reference of the first graphic
Graphic firstGraphic = graphicsLayer.SelectedGraphics.ElementAt(0);
bool isInGcs = firstGraphic.Geometry != null
&& firstGraphic.Geometry.SpatialReference != null
&& firstGraphic.Geometry.SpatialReference.Equals(gcs);
// In order to perform geodesic buffering we need to pass geometries in GCS to the geom service
if (isInGcs)
{
foreach (Graphic selectedGraphic in graphicsLayer.SelectedGraphics)
bufferParams.Features.Add(selectedGraphic);
buffer(GeometryServiceUrl, bufferParams, e);
}
else
{
GeometryServiceOperationHelper helper = new GeometryServiceOperationHelper(GeometryServiceUrl);
helper.ProjectGraphicsCompleted += (o, args) => {
foreach (Graphic selectedGraphic in args.Graphics)
bufferParams.Features.Add(selectedGraphic);
buffer(GeometryServiceUrl, bufferParams, e);
};
helper.ProjectGraphics(graphicsLayer.SelectedGraphics.ToList(), new SpatialReference(4326));
}
}
private void switchBaseMapLayer(TiledMapServiceLayer baseMapLayer, Envelope newExtent, List<Layer> oldBasemapLayers)
{
if (Map == null)
return;
// 1. Save the operational layers (We assume a single base layer)
System.Collections.Generic.Stack<Layer> layers = new System.Collections.Generic.Stack<Layer>();
for (int i = Map.Layers.Count - 1; i >= 0; i--)
{
Layer l = Map.Layers[i];
if (oldBasemapLayers.Contains(l))
continue;
Map.Layers.RemoveAt(i);
layers.Push(l);
}
// 2. Clear the layers collection
Map.Layers.Clear();
// 3. Set the extent
bool spatialReferenceUnchanged = Map.SpatialReference.Equals(newExtent.SpatialReference);
Map.Extent = newExtent;
// 4a. Set layer id if this is not set
if (string.IsNullOrEmpty(baseMapLayer.ID) || (!string.IsNullOrEmpty(baseMapLayer.ID) && Map.Layers[baseMapLayer.ID] != null))
baseMapLayer.ID = Guid.NewGuid().ToString("N");
// 4. Add the new base map
Map.Layers.Add(baseMapLayer);
// 5. Re-add the operational layers
while (layers.Count > 0)
{
Layer layer = layers.Pop();
if (!spatialReferenceUnchanged)
{
//reproject graphics layers that are not feature layers
// Feature layers support reprojection
if (layer is GraphicsLayer && !(layer is FeatureLayer))
{
GraphicsLayer graphicsLayer = layer as GraphicsLayer;
if (graphicsLayer.Graphics.Count > 0)
{
GeometryServiceOperationHelper helper = new GeometryServiceOperationHelper(
new ConfigurationStoreHelper().GetGeometryServiceUrl(ConfigurationStore));
helper.ProjectGraphicsCompleted += (o, e) =>
{
GraphicsLayer targetLayer = e.UserState as GraphicsLayer;
if (targetLayer != null)
{
targetLayer.Graphics.Clear();
foreach (Graphic graphic in e.Graphics)
targetLayer.Graphics.Add(graphic);
}
};
helper.ProjectGraphics(graphicsLayer.Graphics, newExtent.SpatialReference, graphicsLayer);
}
// update the map spatial reference on custom layers
ICustomGraphicsLayer customGraphicsLayer = layer as ICustomGraphicsLayer;
if (customGraphicsLayer != null)
customGraphicsLayer.MapSpatialReference = Map.SpatialReference;
else
{
HeatMapLayerBase heatMapLayer = layer as HeatMapLayerBase;
if (heatMapLayer != null)
heatMapLayer.MapSpatialReference = Map.SpatialReference;
}
}
else
{
HeatMapLayerBase heatMapLayer = layer as HeatMapLayerBase;
if (heatMapLayer != null && heatMapLayer.HeatMapPoints.Count > 0)
{
GeometryServiceOperationHelper helper = new GeometryServiceOperationHelper(new ConfigurationStoreHelper().GetGeometryServiceUrl(ConfigurationStore));
helper.ProjectPointsCompleted += (o, e) =>
{
PointCollection points = new PointCollection();
foreach (MapPoint item in e.Points)
{
if (item != null)
points.Add(item);
}
heatMapLayer.HeatMapPoints = points;
heatMapLayer.MapSpatialReference = points[0].SpatialReference;
heatMapLayer.Refresh();
};
helper.ProjectPoints(heatMapLayer.HeatMapPoints, newExtent.SpatialReference);
}
}
}
Map.Layers.Add(layer);
}
}
private void CreateNewBaseMapWithSpatialReference(Envelope targetInitialExtent, Envelope targetFullExtent, BaseMapInfo baseMapInfo, SpatialReference targetServiceSpatialReference)
{
// Reproject oldMap's extent before comparison
GeometryServiceOperationHelper geomHelper = new GeometryServiceOperationHelper(
new ConfigurationStoreHelper().GetGeometryServiceUrl(ConfigurationStore),
baseMapInfo.UseProxy ? baseMapInfo.ProxyUrl : null);
geomHelper.GeometryServiceOperationFailed += (o, args) =>
{
Logger.Instance.LogError(args.Exception);
MessageBoxDialog.Show(ESRI.ArcGIS.Mapping.Controls.Resources.Strings.MsgUnableToAccessGeometryService + Environment.NewLine + args.Exception != null ? args.Exception.Message : ESRI.ArcGIS.Mapping.Controls.Resources.Strings.MsgUnknownError);
};
geomHelper.ProjectExtentCompleted += (o, args) =>
{
Envelope targetExtent = null;
// If the extents (compared in same projection) interesect, set the extent of the new map to the projected extent
if (targetInitialExtent != null)
{
if (args.Extent.Intersects(targetInitialExtent))
{
if (isFullyContainedWithin(args.Extent, targetInitialExtent))
targetExtent = targetFullExtent; // if the full extent of the new service is fully within, automatically zoom to it
else
targetExtent = args.Extent;
}
else
targetExtent = targetInitialExtent;
}
else if (targetFullExtent != null)
{
if (args.Extent.Intersects(targetFullExtent))
{
if (isFullyContainedWithin(args.Extent, targetFullExtent))
targetExtent = targetFullExtent; // if the full extent of the new service is fully within, automatically zoom to it
else
targetExtent = args.Extent;
}
else
targetExtent = targetFullExtent;
}
// else don't set an extent
// the map will default to the full extent of the service
// Since map will not be in a different projection, we have to re-create the map
BaseMapInfo targetBaseMapInfo = baseMapInfo;
IBaseMapDataSource dataSoure = DataSourceProvider.CreateDataSourceForBaseMapType(targetBaseMapInfo.BaseMapType) as IBaseMapDataSource;
if (dataSoure == null)
throw new Exception(string.Format(ESRI.ArcGIS.Mapping.Controls.Resources.Strings.ExceptionDatasourceNotLoadedForBaseMapType, targetBaseMapInfo.BaseMapType.ToString()));
TiledMapServiceLayer layer = dataSoure.CreateBaseMapLayer(targetBaseMapInfo);
layer.SetValue(ESRI.ArcGIS.Client.WebMap.Document.IsBaseMapProperty, true);
layer.SetValue(ESRI.ArcGIS.Client.Extensibility.MapApplication.LayerNameProperty, targetBaseMapInfo.DisplayName);
checkAndEnsureBingMapsTokenIfRequired(layer);
// Save current selected layer
Layer currentSelectedLayer = SelectedLayer;
saveGraphicsInViewForSelectedLayerInAttributeDisplay();
// Disable listening for layer changed events because we are re-adding layers to the collection. The initialization events are not fired nor is symbology changed
Map.Layers.CollectionChanged -= Layers_CollectionChanged;
List<Layer> oldBaseMapLayers = new List<Layer>();
foreach (Layer l in Map.Layers)
{
if ((bool)l.GetValue(ESRI.ArcGIS.Client.WebMap.Document.IsBaseMapProperty))
oldBaseMapLayers.Add(l);
}
switchBaseMapLayer(layer, targetExtent, oldBaseMapLayers);
// Re-Enable listening for layer changed events
Map.Layers.CollectionChanged += Layers_CollectionChanged;
// Restore current selected layer
SelectedLayer = currentSelectedLayer;
restoreGraphicsInViewForSelectedLayerInAttributeDisplay();
OnNewMapCreated(new MapRecreatedEventArgs() { NewMap = Map });
OnBaseMapChangeComplete(EventArgs.Empty);
};
geomHelper.ProjectExtent(Map.Extent, targetServiceSpatialReference);
}
public void ZoomMapToExtent(Envelope env)
{
if (env == null || Map == null)
return;
if (!mapInitComplete)
throw new InvalidOperationException(ESRI.ArcGIS.Mapping.Controls.Resources.Strings.ExceptionCannotCallZoomMapToExtentBeforeMapHasInitialized);
if (Map.SpatialReference == null)
throw new InvalidOperationException(ESRI.ArcGIS.Mapping.Controls.Resources.Strings.ExceptionCannotCallZoomMapToExtentBeforeMapHasInitializedMapReferenceNull);
if (env.SpatialReference == null)
throw new ArgumentException(ESRI.ArcGIS.Mapping.Controls.Resources.Strings.ExceptionMustSpecifySpatialReferenceOnEnvelope);
if (Map.SpatialReference.Equals(env.SpatialReference))
{
Map.Extent = env;
}
else
{
GeometryServiceOperationHelper geomHelper = new GeometryServiceOperationHelper(
new ConfigurationStoreHelper().GetGeometryServiceUrl(ConfigurationStore));
geomHelper.GeometryServiceOperationFailed += (o, args) =>
{
Logger.Instance.LogError(args.Exception);
throw args.Exception;
};
geomHelper.ProjectExtentCompleted += (o, args) =>
{
Map.Extent = args.Extent;
};
geomHelper.ProjectExtent(env, Map.SpatialReference);
}
}
private void PerformPostLayerInitializationActions(Layer layer, bool initializationSuccess)
{
GraphicsLayer gLayer = layer as GraphicsLayer;
if (gLayer != null)
{
GeometryType geometryType = Core.LayerExtensions.GetGeometryType(gLayer);
Collection<FieldInfo> layerFields = Core.LayerExtensions.GetFields(gLayer);
FeatureLayer featureLayer = layer as FeatureLayer;
if (layerFields.Count == 0 &&
featureLayer != null && featureLayer.LayerInfo != null && featureLayer.LayerInfo.Fields != null)
{
foreach (ESRI.ArcGIS.Client.Field field in featureLayer.LayerInfo.Fields)
{
if (FieldHelper.IsFieldFilteredOut(field.Type))
continue;
ESRI.ArcGIS.Mapping.Core.FieldInfo fieldInfo = ESRI.ArcGIS.Mapping.Core.FieldInfo.FieldInfoFromField(featureLayer, field);
layerFields.Add(fieldInfo);
}
}
if (gLayer.Graphics != null)
{
#region Get geometry type, start getting symbology
if (geometryType == GeometryType.Unknown && gLayer.Graphics.Count > 0)
{
geometryType = LayerUtils.GetGeometryTypeFromGraphic(gLayer.Graphics.ElementAtOrDefault(0));
Core.LayerExtensions.SetGeometryType(gLayer, geometryType);
if ((gLayer.Renderer == null || gLayer.Renderer is HiddenRenderer) && !Symbology.DefaultSymbols.ContainsKey(geometryType))
{
if (geometryType == GeometryType.Unknown)
{
gLayer.SetValue(ESRI.ArcGIS.Client.Extensibility.LayerExtensions.ErrorMessageProperty, "Layer has unspecified geometry type.");
}
else
{
Core.LayerExtensions.SetRunLayerPostInitializationActions(gLayer, true);
SymbolConfigProvider.GetDefaultLinearGradientBrush(gLayer, ColorRampType.ClassBreaks);
}
return;
}
}
#endregion
#region Project graphics if necessary
if (graphicsRequireReprojection(gLayer.Graphics))
{
GeometryServiceOperationHelper helper = new GeometryServiceOperationHelper(
new ConfigurationStoreHelper().GetGeometryServiceUrl(ConfigurationStore)
);
helper.ProjectGraphicsCompleted += (sender, args) =>
{
GraphicsLayer targetLayer = args.UserState as GraphicsLayer;
if (targetLayer != null)
{
targetLayer.Graphics.Clear();
foreach (Graphic graphic in args.Graphics)
targetLayer.Graphics.Add(graphic);
}
};
helper.ProjectGraphics(gLayer.Graphics, Map.SpatialReference, gLayer);
}
#endregion
#region Get field information
if (layerFields.Count == 0) // fields not determined yet
{
determineFieldsFromGraphic(layerFields, gLayer.Graphics.ElementAtOrDefault(0));
}
#endregion
}
#region Get renderer from feature layer's layer info, if necessary
if (gLayer.Renderer == null || gLayer.Renderer is HiddenRenderer)
{
FeatureLayer lay = gLayer as FeatureLayer;
if (lay != null && lay.LayerInfo != null && lay.LayerInfo.Renderer != null)
{
lay.Renderer = lay.LayerInfo.Renderer;
}
}
#endregion
#region Change PictureMarkerSymbol to ImageFillSymbol
if (gLayer.Renderer != null && (geometryType == GeometryType.Point || geometryType == GeometryType.MultiPoint))
{
SimpleRenderer sr = gLayer.Renderer as SimpleRenderer;
ESRI.ArcGIS.Client.FeatureService.Symbols.PictureMarkerSymbol pms = null;
if (sr != null)
{
pms = sr.Symbol as ESRI.ArcGIS.Client.FeatureService.Symbols.PictureMarkerSymbol;
if (pms != null)
sr.Symbol = SymbolJsonHelper.ToImageFillSymbol(pms);
}
else
{
ClassBreaksRenderer cbr = gLayer.Renderer as ClassBreaksRenderer;
if (cbr != null)
{
foreach (ClassBreakInfo info in cbr.Classes)
{
pms = info.Symbol as ESRI.ArcGIS.Client.FeatureService.Symbols.PictureMarkerSymbol;
if (pms != null)
info.Symbol = SymbolJsonHelper.ToImageFillSymbol(pms);
}
}
else
{
UniqueValueRenderer uvr = gLayer.Renderer as UniqueValueRenderer;
if (uvr != null)
{
foreach (UniqueValueInfo info in uvr.Infos)
{
pms = info.Symbol as ESRI.ArcGIS.Client.FeatureService.Symbols.PictureMarkerSymbol;
if (pms != null)
info.Symbol = SymbolJsonHelper.ToImageFillSymbol(pms);
}
}
}
}
}
#endregion
if (gLayer.Renderer == null || gLayer.Renderer is HiddenRenderer)
ApplyDefaultRenderer(gLayer, geometryType);
ApplyDefaultGradientBrush(gLayer);
}
else if ((layer is ArcGISDynamicMapServiceLayer || layer is ArcGISTiledMapServiceLayer)
&& !((bool)layer.GetValue(ESRI.ArcGIS.Client.WebMap.Document.IsBaseMapProperty)))
{
//get layer infos - used later for figuring out domain/subtypes, etc
if ((layer.GetValue(ESRI.ArcGIS.Mapping.Core.LayerExtensions.LayerInfosProperty) as Collection<LayerInformation>)
== null)
getLayerInfos(layer);
}
bool doSelect = false;
layer.SetValue(ESRI.ArcGIS.Client.Extensibility.LayerExtensions.InitialUpdateCompletedProperty, true);
if (!initializationSuccess)
layer.SetValue(ESRI.ArcGIS.Client.Extensibility.LayerExtensions.InitialUpdateFailedProperty, true);
else
{
bool hasId = !string.IsNullOrEmpty(layer.ID) || !string.IsNullOrEmpty(layer.GetValue(ESRI.ArcGIS.Client.Extensibility.MapApplication.LayerNameProperty) as string);
// Certain layers get added when the map draw mode is changed (An empty graphics layer is added)
// We don't want to auto-select this layer
if (hasId || !(layer is GraphicsLayer))
doSelect = true;
}
if (doSelect)
SetSelectedLayer(new LayerEventArgs() { Layer = layer });
SubscribeToLayerInitializationEvents(layer, false);
}
public override void Execute(object parameter)
{
if (Layer == null)
return;
bool isServerLayer = false;
Envelope targetExtent = null;
TiledLayer tiledLayer = Layer as TiledLayer;
if (tiledLayer != null)
{
isServerLayer = true;
targetExtent = LayerExtentExtensions.GetTiledLayerFullExtent(tiledLayer); // get the cached value (if any) which will likely be in the map's spRef already
if (targetExtent == null) // value not known, use value on service metadata (will likely be in the services' spatial ref and not neccesarily in map's spRef)
targetExtent = tiledLayer.FullExtent;
if (tiledLayer is ESRI.ArcGIS.Client.Bing.TileLayer)
{
if (targetExtent.SpatialReference == null)
targetExtent.SpatialReference = new SpatialReference(102100);
}
}
DynamicLayer dynamicLayer = Layer as DynamicLayer;
if (dynamicLayer != null)
{
isServerLayer = true;
targetExtent = LayerExtentExtensions.GetDynamicLayerFullExtent(dynamicLayer); // get the cached value (if any) which will likely be in the map's spRef already
if (targetExtent == null)// value not known, use value on service metadata (will likely be in the services' spatial ref and not neccesarily in map's spRef)
targetExtent = dynamicLayer.FullExtent;
}
if (isServerLayer)
{
if (targetExtent == null || Map == null || Map.SpatialReference == null)
return;
if (Map.SpatialReference.Equals(targetExtent.SpatialReference))
{
// spatial reference matches. can directly zoom
Map.ZoomTo(targetExtent);
}
else
{
if (string.IsNullOrEmpty(GeometryServiceUrl))
throw new Exception(Resources.Strings.ExceptionNoGeometryServiceUrlSpecifiedLayerZoomedIsDifferentSpatialReference);
GeometryServiceOperationHelper helper = new GeometryServiceOperationHelper(GeometryServiceUrl);
helper.ProjectExtentCompleted += (o, e) =>
{
// Cache (save) the projected extent values
if (tiledLayer != null)
LayerExtentExtensions.SetTiledLayerFullExtent(tiledLayer, e.Extent);
else if (dynamicLayer != null)
LayerExtentExtensions.SetDynamicLayerFullExtent(dynamicLayer, e.Extent);
Map.ZoomTo(e.Extent);
};
helper.ProjectExtent(targetExtent, Map.SpatialReference);
}
return;
}
// Non server rendererd layers follow
GraphicsLayer graphicsLayer = Layer as GraphicsLayer;
if (graphicsLayer == null)
return;
if (Map != null)
{
Envelope newMapExtent = null;
if (graphicsLayer.Graphics.Count < 1)
{
FeatureLayer featureLayer = graphicsLayer as FeatureLayer;
if (featureLayer != null && featureLayer.LayerInfo != null && featureLayer.LayerInfo.Extent != null)
{
Envelope env = featureLayer.LayerInfo.Extent;
SpatialReference sr = env.SpatialReference;
if (sr == null)
sr = featureLayer.LayerInfo.DefaultSpatialReference;
if (Map.SpatialReference.Equals(sr))
{
Map.PanTo(env);
}
else if (sr != null)
{
GeometryServiceOperationHelper geomHelper = new GeometryServiceOperationHelper(
new ConfigurationStoreHelper().GetGeometryServiceUrl(View.Instance.ConfigurationStore));
geomHelper.GeometryServiceOperationFailed += (o, args) =>
{
Logger.Instance.LogError(args.Exception);
throw args.Exception;
};
geomHelper.ProjectExtentCompleted += (o, args) =>
{
MapZoomOrPan(args.Extent);
};
geomHelper.ProjectExtent(env, Map.SpatialReference);
}
}
}
else
{
foreach (Graphic graphic in graphicsLayer.Graphics)
{
if (graphic.Geometry != null && graphic.Geometry.Extent != null)
newMapExtent = graphic.Geometry.Extent.Union(newMapExtent);
}
newMapExtent = MapZoomOrPan(newMapExtent);
}
}
}
public static GeometryServiceOperationHelper GetProjectionHelper(EventHandler<ProjectGraphicsCompletedEventArgs> projectGraphicsCompleted, EventHandler<ProjectPointsCompletedEventArgs> projectPointsCompleted = null)
{
string geometryServiceUrl = new ConfigurationStoreHelper().GetGeometryServiceUrl(ConfigurationStoreProvider.DefaultConfigurationStore);
if (string.IsNullOrEmpty(geometryServiceUrl))
{
System.Diagnostics.Debug.WriteLine("Must specify GeometryServiceUrl if spatial reference of the Map and the layer do not match");
return null;
}
GeometryServiceOperationHelper helper = new GeometryServiceOperationHelper(geometryServiceUrl);
helper.ProjectGraphicsCompleted += projectGraphicsCompleted;
helper.ProjectPointsCompleted += projectPointsCompleted;
return helper;
}