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 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 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);
}
}
}
