protected virtual void OnFindNearbyExecuted(FindNearbyEventArgs args)
{
if (FindNearbyExecuted != null)
{
FindNearbyExecuted(this, args);
}
}
void buffer(string agsGeometryServerUrl, BufferParameters bufferParams, FindNearbyEventArgs findNearbyRequest)
{
if (string.IsNullOrEmpty(agsGeometryServerUrl))
{
return;
}
GeometryService geomService = new GeometryService
{
Url = agsGeometryServerUrl
};
geomService.BufferCompleted += GeometryService_BufferCompleted;
geomService.Failed += (o, e) =>
{
if (findNearbyToolWindow != null)
{
findNearbyToolWindow.StopBusyIndicator();
MapApplication.Current.HideWindow(findNearbyToolWindow);
}
MessageBoxDialog.Show(Resources.Strings.MsgErrorExecutingBufferOperation + Environment.NewLine + e.Error.ToString());
};
geomService.BufferAsync(bufferParams, findNearbyRequest);
}
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));
}
}
void buffer(string agsGeometryServerUrl, BufferParameters bufferParams, FindNearbyEventArgs findNearbyRequest)
{
if (string.IsNullOrEmpty(agsGeometryServerUrl))
return;
GeometryService geomService = new GeometryService
{
Url = agsGeometryServerUrl
};
geomService.BufferCompleted += GeometryService_BufferCompleted;
geomService.Failed += (o, e) =>
{
if (findNearbyToolWindow != null)
{
findNearbyToolWindow.StopBusyIndicator();
MapApplication.Current.HideWindow(findNearbyToolWindow);
}
MessageBoxDialog.Show(Resources.Strings.MsgErrorExecutingBufferOperation + Environment.NewLine + e.Error.ToString());
};
geomService.BufferAsync(bufferParams, findNearbyRequest);
}
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));
}
}
void geometryService_RelationCompleted(object sender, RelationEventArgs e)
{
object[] state = e.UserState as object[];
if (state == null || state.Length < 1)
{
return;
}
FindNearbyEventArgs eventArgs = state[0] as FindNearbyEventArgs;
if (eventArgs == null)
{
return;
}
GraphicsLayer layerToCompare = eventArgs.SelectedLayer;
if (layerToCompare == null)
{
return;
}
GraphicsLayer resultsLayer = new GraphicsLayer()
{
Opacity = layerToCompare.Opacity,
};
if (layerToCompare.Renderer != null)
{
resultsLayer.Renderer = layerToCompare.Renderer.CloneRenderer();
}
GraphicsLayer bufferGraphicsLayer = null;
if (state.Length > 1)
{
bufferGraphicsLayer = state[1] as GraphicsLayer;
}
foreach (GeometryRelationPair geomPair in e.Results)
{
int index = geomPair.Graphic1Index;
if (index < 0 || index >= layerToCompare.Graphics.Count)
{
continue;
}
Graphic intersectingGraphic = layerToCompare.Graphics[index];
resultsLayer.Graphics.Add(copyGraphic(intersectingGraphic));
}
CopyLayerConfiguration(layerToCompare, resultsLayer);
int insertIndex = Map.Layers.IndexOf(layerToCompare);
string displayName = getDisplayNameForResultLayer(eventArgs.LayerDisplayName);
AddResultLayer(bufferGraphicsLayer, true, Resources.Strings.FindNearbyBufferPrefix + displayName, ESRI.ArcGIS.Mapping.Core.GeometryType.Polygon, insertIndex);
AddResultLayer(resultsLayer, true, Resources.Strings.FindNearbyPrefix + displayName, Core.LayerExtensions.GetGeometryType(layerToCompare), insertIndex);
if (findNearbyToolWindow != null)
{
findNearbyToolWindow.StopBusyIndicator();
MapApplication.Current.HideWindow(findNearbyToolWindow);
}
}
void GeometryService_BufferCompleted(object sender, GraphicsEventArgs args)
{
IList <Graphic> results = args.Results;
if (results == null || results.Count < 1)
{
return;
}
FindNearbyEventArgs eventArgs = args.UserState as FindNearbyEventArgs;
if (eventArgs == null)
{
return;
}
GraphicsLayer targetGraphicsLayer = eventArgs.SelectedLayer;
if (targetGraphicsLayer == null)
{
return;
}
#region Draw the buffer graphics layer
GraphicsLayer bufferGraphicsLayer = new GraphicsLayer()
{
ID = eventArgs.EventId
};
// Add the circle graphic
Graphic circleGraphic = results[0];
circleGraphic.Attributes.Add(Resources.Strings.BufferDistance, string.Format("{0} {1}", eventArgs.Distance, eventArgs.LinearUnit.ToString()));
SimpleFillSymbol defaultBufferSymbol = new SimpleFillSymbol()
{
BorderBrush = new SolidColorBrush(Colors.Blue),
BorderThickness = 1,
Fill = new SolidColorBrush(new Color()
{
A = (byte)102, R = (byte)255, G = (byte)0, B = (byte)0
})
};
SimpleRenderer simpleRenderer = new SimpleRenderer()
{
Symbol = defaultBufferSymbol,
};
bufferGraphicsLayer.Renderer = simpleRenderer;
Collection <FieldInfo> layerFields = Core.LayerExtensions.GetFields(bufferGraphicsLayer);
if (layerFields != null)
{
layerFields.Add(new FieldInfo()
{
DisplayName = Resources.Strings.BufferDistance, Name = Resources.Strings.BufferDistance, FieldType = FieldType.Text
});
}
bufferGraphicsLayer.Graphics.Add(circleGraphic);
#endregion
Graphic graphicCircle = results[0];
if (graphicCircle != null)
{
ESRI.ArcGIS.Client.Geometry.Geometry graphicCircleGeometry = graphicCircle.Geometry;
if (graphicCircleGeometry != null)
{
// Ensure that atleast the first graphic of the graphics layer has a spatial reference set
// because ESRI.ArcGIS.Client.Tasks checks it
if (targetGraphicsLayer.Graphics.Count > 0)
{
if (targetGraphicsLayer.Graphics[0].Geometry != null &&
targetGraphicsLayer.Graphics[0].Geometry.SpatialReference == null && Map != null)
{
targetGraphicsLayer.Graphics[0].Geometry.SpatialReference = Map.SpatialReference;
}
}
// The extent of the result layer should be the extent of the circle
if (Map != null)
{
Map.ZoomTo(expandExtent(graphicCircleGeometry.Extent));
}
relationAsync(GeometryServiceUrl, targetGraphicsLayer.Graphics.ToList(), results, new object[] { eventArgs, bufferGraphicsLayer });
}
}
}
protected virtual void OnFindNearbyExecuted(FindNearbyEventArgs args)
{
if (FindNearbyExecuted != null)
FindNearbyExecuted(this, args);
}
