2. ArcGIS API for Silverlight – Advanced Topics
July 25-26, 2012
ArcGIS API for Silverlight – Advanced Topics
Rex Hansen
Jennifer Nery

3. Agenda Introductions and overview Graphics data sources
ArcGIS Portal API
High-Quality Printing
Deep dive into image services
Editing workflow
Dynamic Layers with Query Statistics

4. Graphics Data Sources
Jennifer Nery

5. Adding Graphics to GraphicsLayer
foreach(Graphic g in myGraphics)
graphicsLayer.Graphics.Add(myGraphics); or
graphicsLayer.GraphicsSource = myGraphics;
read-only when GraphicsSource is used!
can by any IEnumerable<Graphic>

6. Adding Custom Data to a GraphicsLayer
public class MyData {
public double Longitude { get; set; }
public double Latitude { get; set; } } …
foreach(MyData in dataList)
myGraphicsLayer.Graphics.Add(
new Graphic() {
new MapPoint(Longitude, Latitude) );

7. …Simpler with PointDataSource
<esri:GraphicsLayer> <esri:GraphicsLayer.GraphicsSource> <esri:PointDataSource XCoordinateBinding="{Binding Longitude}" YCoordinateBinding="{Binding Latitude}" ItemsSource="{StaticResource dataList}" /> </esri:GraphicsLayer.GraphicsSource> </esri:GraphicsLayer>

8. ArcGIS Portal API
Jennifer Nery

9. using ESRI.ArcGIS.Client.Portal
var portal = new ArcGISPortal(“ var parameters = new SearchParameters { QueryString = query.Text, Limit = 5 }; portal.SearchItemsAsync(parameters, (result, error) => { if(error == null) Results.ItemsSource = result.Results; };

10. <ListBox x:Name=“Results”> <ListBox
<ListBox x:Name=“Results”> <ListBox.ItemTemplate> <DataTemplate> <StackPanel> <TextBlock Text=“{Binding Title}”/> <TextBlock Text=“{Binding Owner}”/> <Image Source=“{Binding ThumbnailUri}”/> </StackPanel> </DataTemplate> </ListBox.ItemTemplate> </ListBox>

11. …with IdentityManager
IdentityManager.Current.RegisterServers( new ServerInfo[ ] { new ServerInfo() { ServerURL = “ TokenServiceURL = “ } }); IdentityManager.Current.ChallengeMethod = Challenge;

12. Sign in
IdentityManager.Current.GenerateCredentialAsync( “ username, password, (credential, error) => { if(error == null) { IdentityManager.AddCredential(credential); Portal.InitializeAsync(“ (crd, ex) => {…} ) ; } } );

13. Sign out
var credential = IdentityManager.Current.FindCredential( “ username); IdentityManager.Current.RemoveCredential(credential ); portal.InitializeAsync(“ (crd, ex) => {…});

14. High-Quality Printing
Jennifer Nery

15. using ESRI.ArcGIS.Client.Printing
var printTask = new PrintTask(“ printTask.ExecuteCompleted += (s, e) => { if (e.Error == null) HtmlPage.Window.Navigate(e.PrintResult.Url, “_blank”); }; printTask.ExecuteAsync(new PrintParameters(MyMap)); or printTask.StatusUpdated += (s, e) => {…}; printTask.JobCompleted += (s, e) => {…}; printTask.SubmitJob(…);

16. <StackPanel x:Name=“PrintPanel”> <ComboBox x:Name=“Templates” ItemsSource=“{Binding LayoutTemplates}”/> <ComboBox x:Name=“Formats” ItemsSource=“{Binding Formats}”/> <TextBox x:Name=“MapTitle” Text=“Print Demo”/> </StackPanel> printTask.GetServiceInfoCompleted += (s, e) => { PrintPanel.DataContext = e.ServiceInfo; }; printTask.GetServiceInfoAsync();

17. var printParams= new PrintParameters(MyMap); printParams
var printParams= new PrintParameters(MyMap); printParams.LayoutTemplate = (string) Templates.SelectedItem; printParams.Format = (string) Formats.SelectedItem; printParams.LayoutOptions = new LayoutOptions() { Title = MapTitle.Text, LegendOptions = new LegendOptions() {…}, ScaleBarOptions = new ScaleBarOptions() {…}, … }; printParams.MapOptions = new MapOptions() {…}; printParams.ExportOptions = new ExportOptions() {…} printTask.ExecuteAsync(printParams);

18. PrintTask: Known Limitations in v3.0
Custom symbols/renderers
Clustering
KmlLayer does not support visibleFolders
GraphicsLayer with mixed geometries
FeatureLayer selection/geometry require ObjectID

19. Related Session
Supporting High-Quality Printing in Web Applications with ArcGIS 10.1 Server
Thursday, July 26, 2012
8:30 AM – 9:45 AM
Room 07 A/B

20. Diving into Image Services
Rex Hansen

21. Image Server Editing
Add, update and delete rasters in a mosaic dataset public class ArcGISImageServiceLayer : Layer { AddRasters( ImageServiceAddParameters, Action<ImageServiceEditResults, Exception>) UpdateRaster( ImageServiceUpdateParameters, Action<ImageServiceEditResults, Exception>) DeleteRasters( IEnumerable<int>, Action<ImageServiceEditResults, Exception>) }

22. Upload Task Great for upload of large files
Provides progress, cancellation and deletion
Great for large geoprocessing input or raster uploads

23. Mensuration Task
New task for measuring length, height, area etc. based on imagery data
public class MensurationTask : TaskBase {
Point ( … )
DistanceAndAngle ( … )
HeightFromBaseToTop ( … )
HeightFromBaseAndTopShadow ( … )
HeightFromTopAndTopShadow ( … )
AreaAndPerimeter ( … )
Centroid ( … ) }

24. Raster Functions
Common and custom functions to change how a raster is rendered
RasterFuctionsComboBox.ItemsSource = imgLayer.RasterFunctionInfos;
var rasterFunction = RasterFuctionsComboBox.SelectedItem as RasterFunctionInfo;
RenderingRule renderingRule = new RenderingRule() { RasterFunctionName = rasterFunction.Name };
imgLayer.RenderingRule = renderingRule;
imgLayer.Refresh();

25. Editing Workflow
Rex Hansen

26. Editor Tracking Feature last edited by another user
Feature moved, last edited user and date updated

27. Ownership Can’t update or delete, don’t own the feature
Created feature, can update and delete

28. Attribute-only editing
Feature is not allowed for delete or geometry edit.

29. Feature Service – Editor Tracking
FeatureLayer.EditUserName
Client side validation
FeatureLayer.IsUpdateAllowed(graphic)
Check if feature can be updated
FeatureLayer.IsGeometryUpdateAllowed(graphic)
Check if feature’s geometry can be updated
FeatureLayerInfo.EditFieldsInfo
Owner, editor, date
FeatureLayerInfo.OwnershipBasedAccessControl
If others can update, delete
FeatureLayerInfo.AllowGeometryUpdates
Attribute only editing

30. Dynamic Layers with Query Statistics
Rex Hansen

31. Change the renderers LayerDrawingOptions:
Allows you to override the renderer for each layer.
Use GenerateRendererTask helper to create good class breaks.
DynamicLayerInfos:
Reorder the layers
Change the source data
Map layers, workspaces, tables, joins…

32. DynamicLayerInfos LayerMapSource LayerDataSource:
reference layers already in map service
LayerDataSource:
TableDataSource (workspaces & GDB versions)
QueryDataSource (query layers)
RasterDataSource (raster data)
JoinDataSource (join the above sources)
Note: When you use DynamicLayerInfos, you replace all existing layer infos.

33. QueryTask - Statistics
Sum, Average, Min, Max, Count, Standard Deviation, Variance
var query = new Query() {
GroupByFieldsForStatistics = new List<string> { "SUB_REGION" },
OutStatistics = new List<OutStatistic> {
new OutStatistic() {
OnStatisticField = "POP2000",
OutStatisticFieldName = "SubRegionPopulation",
StatisticType = StatisticType.Sum
. . .

34. Thank you for attending
Have fun at UC2012
Open for Questions
Please fill out the evaluation:
First Offering ID: 787
Second Offering ID: 1936