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Feature layer publish, Display in WPF app

xariaD

We have a feature layer, which we intend to publish using ArcGIS Server.
We have a WPF application which displays maps. This feature layer is to be overlayed upon the map.
The feature layers represents certain units installed at particular locations. We have the co-ordinates of these units.

The units have different state eg Enabled/disabled. We wish to represent the enabled units with different icon and disabled with different icon. Obviously the state is obtained dynamically. How to achieve this?
Also, Upon clicking these units on the map some function should be performed.
How do we determine which unit has been clicked?

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xariaD

Okay I have got it to work partially.
Specified co-ordinate for the map got the Spatial Reference.
I created a new WPF app and added map, dynamic layer, feature layer. Set rotation to 90 in Map loaded event.
And it displays perfectly.

Now how to change the color of a particular polygon at runtime?

An 'UniqueValueRenderer' which allows to change the symbol depending on the value of a field should be what you are looking for.

How to use this UniqueValue Renderer?

EugeneStaten_0-1716408131677.png

SomeGISGuy

I just noticed that your layer doesn't have a valid spatial reference. This is a requirement to blend with other layers.

Also just because it works in ArcMap doesn't mean it works the same way in the Client APIs. As I mentioned these are two very different beasts, and they talk to the server in different ways. ArcMap uses either local DCOM or SOAP to talk to the server, whereas the client API's uses a much simpler REST interface, the latter which ignores any rotation you have in the service (thus you wont see any rotation in the client api's when you set it in the map document). As mentioned, using the rotation property of the map control in the client api allows you to rotate the map on the fly.

xariaD

Now I have tried everything I could. This just can not be happening. How is it that feature layer is displayed the way it is.

I converted the polygon to point yet the same issue. The layer displays perfectly in a web app and displays vertically in WPF/Silverlight App.
Rotation of Map does not effect alignment in WPF. Whether I rotate the map in ArcMap or not.
How can it be that the same layer is displayed in web application without issues and WPF cannot.
This seriously makes me think that the issue lies with the API.

Is there any solution to this?

xariaD

You need to rotate the map in the Silverlight application, not in ArcMap.
<esri:Map Rotation="90" />

Even rotating the map in WPF application rather than in ArcMap does not help. It is the same.

SomeGISGuy

You need to rotate the map in the Silverlight application, not in ArcMap.
<esri:Map Rotation="90" />

xariaD

I rotated the map in arcMap, before publishing.

SomeGISGuy

Are you rotating the map on the client or in the service? WebADF and WPF are two very different beasts, and uses two very different ways of talking to the map services, so the way you do it in one API could be very different from another.

xariaD

The following is the code snippet from the web app

sri:MapResourceManager ID="MapResourceManager1" runat="server" style="position: absolute; left: 344px; top: 130px; z-index: 1503;" OnResourceInit="ResourceManager_ResourceInit">            
       
<ResourceItems>
<esri:MapResourceItem DisplaySettings="visible=True:transparency=0:mime=True:imgFormat=PNG8:height=350:width=600:dpi=96:color=-16710905:transbg=True:displayInToc=True:dynamicTiling=False" LayerDefinitions="" Definition="&lt;Definition DataSourceDefinition=&quot;10.1.3.127&quot; DataSourceType=&quot;ArcGIS Server Local&quot; Identity=&quot;&quot; ResourceDefinition=&quot;(default)@BaseMap1&amp;quot; /&gt;" Name="BaseMap1" />

<esri:MapResourceItem DisplaySettings="visible=True:transparency=0:mime=True:imgFormat=PNG8:height=350:width=600:dpi=96:color=:transbg=False:displayInToc=True:dynamicTiling=False" LayerDefinitions="" Definition="&lt;Definition DataSourceDefinition=&quot;10.1.3.127&quot; DataSourceType=&quot;ArcGIS Server Local&quot; Identity=&quot;&quot; ResourceDefinition=&quot;(default)@FeatureLayer1&amp;quot; /&gt;" Name="FeatureLayer1" />
</ResourceItems>
</esri:MapResourceManager>

The web application displays the feature layer data correctly, but WPF displays it vertically no matter the rotation of the Map.

xariaD

Do you get the same result by using a dynamiclayer coming from arcgisonline instead of your own server?

I cannot use arcgisonline, we are hosting the map internally

I rotated the map again to 0degreee and the layer displays vertically, which it should then I rotated the map to 270 degree and the north was to the right, but still the layer displayed the same, vertically

😞

xariaD

I did rotate the map.
When I use our ArcGIs server, and create web application, the feature layer displays fine.

I have not used arcgisonline , I'll give it a try.
What else should I be looking at?

DominiqueBroux

Strange. I haven't a clue.

The only way I know to change the orientation of a dynamic layer is to change the rotation of the map.
I guess you didn't do that?

Do you get the same result by using a dynamiclayer coming from arcgisonline instead of your own server?

xariaD

Please guide me what, where should I be looking at????

😞

xariaD

My features are supposed to be horizontal but they are displaying vertically.

Could you give more info about this issue?

I think North is not aligned with the DynamicMapLayer. Coz for the DynamicLayer North is pointing towards the right of the screen. but I believe for the feature layer North is towards the top of screen.

xariaD

I noticed that the geometry of your feature layer was of type polygon :

and that you were using a marker symbol
You should use a fill symbol instead.

Yeah that is what I did and then I could see the features.

DominiqueBroux

I noticed that the geometry of your feature layer was of type polygon :

Geometry Type: esriGeometryPolygon

and that you were using a marker symbol

FeatureSymbol="{StaticResource MyMarkerSymbol}"

You should use a fill symbol instead.

My features are supposed to be horizontal but they are displaying vertically.

Could you give more info about this issue?

Also the labels(annotation) are not being displayed.

I am not sure on how the annotation layers are managed with API 2.0. Need to wait for Morten's answer.

xariaD

Update:

Okay I am able to show the feature layer in my WPF app now.
But it is not displaying correctly.
My features are supposed to be horizontal but they are displaying vertically.
Also the labels(annotation) are not being displayed.

xariaD

So then the feature layer is alright.

Below is the code for our map display:
<Grid x:Name="LayoutRoot" ShowGridLines="False">
        <Grid.Resources>
        <esriSymbols:SimpleMarkerSymbol x:Key="MyMarkerSymbol" x:Name="MyMarkerSymbol" Color="Green" Style="Diamond" Size="14" />
    </Grid.Resources>

<esri:Map x:Name="MyMap" Background="White" Grid.Row="0" Grid.Column="1" Grid.RowSpan="2"
                  Margin="15" Initialized="MyMap_Initialized" ExtentChanged="MyMap_ExtentChanged"
                  ZoomDuration="00:00:00" PanDuration="00:00:00"
                  Extent="6100,-3200,7189,-163" Loaded="MyMap_Loaded">

            <esri:Map.Layers>
                <esri:ArcGISDynamicMapServiceLayer x:Name="StreetMap" ID="Street"
                                              Url="http://10.1.3.127/ArcGIS/rest/services/mybasemap/MapServer" />
                <esri:FeatureLayer Visible="True" ID="myLocationLayer" x:Name="myLocation"
                                   Url="http://10.1.3.127/ArcGIS/rest/services/myFeaturelayer/MapServer/0"
                                   MouseLeftButtonDown="TowerLocation_MouseLeftButtonDown"
                                   FeatureSymbol="{StaticResource MyMarkerSymbol}"/>

            </esri:Map.Layers>
        </esri:Map>

Upon debugging I found out that Initialized has two layers: ArcGISDynamicMapServiceLayer and Featurelayer.
What is wrong? Why can't the app display the feature layer

(

SomeGISGuy

You can display a layer without a spatial reference by itself. However, if you want to overlay it on another map, it must have a valid spatial reference associated with it, so the map knows how to reproject the data to match the basemap.

xariaD

We have a map in AutoCAD.
For our application we do not need to display the city map. We just need to display the area of our concern.
Now we were able to convert the AutoCad to mxd.
But this AutoCad file has co-ordinates of its own and is not using Spatial reference or WKID.

We created another layer, from this mxd to display as feature layer for our WPF application.
Then we created a web application on the ArcGIS server and the layer displays, but it does not display on the wpf app.
I have upgraded the API to 2.0 still it will not display:(

xariaD

This is what I get from Feature layer http://.........MapServer/0?j=pjson

Layer: Labels (ID: 0)
Sub Layers:

    * S_PR-TOWER
    * S_Grid1
    * S_TWY1-CtrLine-Txt
    * RW2
    * S_Bline
    * TITLE_BLOCK
    * GATENAME

Display Field: TextString

Type: Annotation Layer

Geometry Type: esriGeometryPolygon

Description:

Definition Expression:

Copyright Text:

Min. Scale: 0

Max. Scale: 0

Extent:

      XMin: 6213.22240586483
      YMin: -4580.88478070292
      XMax: 7108.20544900603
      YMax: -373.866660260542
      Spatial Reference:

Fields:

    * OBJECTID (Type: esriFieldTypeOID, Alias: OBJECTID)
    * SHAPE (Type: esriFieldTypeGeometry, Alias: SHAPE)
    * FeatureID (Type: esriFieldTypeInteger, Alias: FeatureID)
    * ZOrder (Type: esriFieldTypeInteger, Alias: ZOrder)
    * AnnotationClassID (Type: esriFieldTypeInteger, Alias: AnnotationClassID)
    * Element (Type: esriFieldTypeBlob, Alias: Element)
    * SymbolID (Type: esriFieldTypeInteger, Alias: SymbolID)
    * Status (Type: esriFieldTypeSmallInteger, Alias: Status)
    * TextString (Type: esriFieldTypeString, Alias: TextString)
    * FontName (Type: esriFieldTypeString, Alias: FontName)
    * FontSize (Type: esriFieldTypeDouble, Alias: FontSize)
    * Bold (Type: esriFieldTypeSmallInteger, Alias: Bold)
    * Italic (Type: esriFieldTypeSmallInteger, Alias: Italic)
    * Underline (Type: esriFieldTypeSmallInteger, Alias: Underline)
    * VerticalAlignment (Type: esriFieldTypeSmallInteger, Alias: VerticalAlignment)
    * HorizontalAlignment (Type: esriFieldTypeSmallInteger, Alias: HorizontalAlignment)
    * XOffset (Type: esriFieldTypeDouble, Alias: XOffset)
    * YOffset (Type: esriFieldTypeDouble, Alias: YOffset)
    * Angle (Type: esriFieldTypeDouble, Alias: Angle)
    * FontLeading (Type: esriFieldTypeDouble, Alias: FontLeading)
    * WordSpacing (Type: esriFieldTypeDouble, Alias: WordSpacing)
    * CharacterWidth (Type: esriFieldTypeDouble, Alias: CharacterWidth)
    * CharacterSpacing (Type: esriFieldTypeDouble, Alias: CharacterSpacing)
    * FlipAngle (Type: esriFieldTypeDouble, Alias: FlipAngle)
    * Override (Type: esriFieldTypeInteger, Alias: Override)
    * Entity (Type: esriFieldTypeString, Alias: Entity)
    * Handle (Type: esriFieldTypeString, Alias: Handle)
    * Owner (Type: esriFieldTypeString, Alias: Owner)
    * Layer (Type: esriFieldTypeString, Alias: Layer)
    * LyrFrzn (Type: esriFieldTypeSmallInteger, Alias: LyrFrzn)
    * LyrLock (Type: esriFieldTypeSmallInteger, Alias: LyrLock)
    * LyrOn (Type: esriFieldTypeSmallInteger, Alias: LyrOn)
    * LyrVPFrzn (Type: esriFieldTypeSmallInteger, Alias: LyrVPFrzn)
    * LyrHandle (Type: esriFieldTypeString, Alias: LyrHandle)
    * Color (Type: esriFieldTypeSmallInteger, Alias: Color)
    * EntColor (Type: esriFieldTypeSmallInteger, Alias: EntColor)
    * LyrColor (Type: esriFieldTypeSmallInteger, Alias: LyrColor)
    * BlkColor (Type: esriFieldTypeSmallInteger, Alias: BlkColor)
    * Linetype (Type: esriFieldTypeString, Alias: Linetype)
    * EntLinetype (Type: esriFieldTypeString, Alias: EntLinetype)
    * LyrLnType (Type: esriFieldTypeString, Alias: LyrLnType)
    * BlkLinetype (Type: esriFieldTypeString, Alias: BlkLinetype)
    * Elevation (Type: esriFieldTypeDouble, Alias: Elevation)
    * Thickness (Type: esriFieldTypeDouble, Alias: Thickness)
    * LineWt (Type: esriFieldTypeSmallInteger, Alias: LineWt)
    * EntLineWt (Type: esriFieldTypeSmallInteger, Alias: EntLineWt)
    * LyrLineWt (Type: esriFieldTypeSmallInteger, Alias: LyrLineWt)
    * BlkLineWt (Type: esriFieldTypeSmallInteger, Alias: BlkLineWt)
    * RefName (Type: esriFieldTypeString, Alias: RefName)
    * LTScale (Type: esriFieldTypeDouble, Alias: LTScale)
    * ExtX (Type: esriFieldTypeDouble, Alias: ExtX)
    * ExtY (Type: esriFieldTypeDouble, Alias: ExtY)
    * ExtZ (Type: esriFieldTypeDouble, Alias: ExtZ)
    * DocName (Type: esriFieldTypeString, Alias: DocName)
    * DocPath (Type: esriFieldTypeString, Alias: DocPath)
    * DocType (Type: esriFieldTypeString, Alias: DocType)
    * DocVer (Type: esriFieldTypeString, Alias: DocVer)
    * ScaleX (Type: esriFieldTypeDouble, Alias: ScaleX)
    * ScaleY (Type: esriFieldTypeDouble, Alias: ScaleY)
    * ScaleZ (Type: esriFieldTypeDouble, Alias: ScaleZ)
    * Style (Type: esriFieldTypeString, Alias: Style)
    * FontID (Type: esriFieldTypeSmallInteger, Alias: FontID)
    * Text (Type: esriFieldTypeString, Alias: Text)
    * Height (Type: esriFieldTypeDouble, Alias: Height)
    * TxtAngle (Type: esriFieldTypeDouble, Alias: TxtAngle)
    * TxtWidth (Type: esriFieldTypeDouble, Alias: TxtWidth)
    * TxtOblique (Type: esriFieldTypeDouble, Alias: TxtOblique)
    * TxtGenType (Type: esriFieldTypeString, Alias: TxtGenType)
    * TxtJust (Type: esriFieldTypeString, Alias: TxtJust)
    * VertAlign (Type: esriFieldTypeString, Alias: VertAlign)
    * TxtFont (Type: esriFieldTypeString, Alias: TxtFont)
    * TxtBoxHt (Type: esriFieldTypeDouble, Alias: TxtBoxHt)
    * TxtBoxWd (Type: esriFieldTypeDouble, Alias: TxtBoxWd)
    * TxtRefWd (Type: esriFieldTypeDouble, Alias: TxtRefWd)
    * TxtAttach (Type: esriFieldTypeSmallInteger, Alias: TxtAttach)
    * TxtDir (Type: esriFieldTypeSmallInteger, Alias: TxtDir)
    * LnSpace (Type: esriFieldTypeSmallInteger, Alias: LnSpace)
    * SpaceFct (Type: esriFieldTypeDouble, Alias: SpaceFct)
    * TxtMemo (Type: esriFieldTypeString, Alias: TxtMemo)
    * SHAPE_Length (Type: esriFieldTypeDouble, Alias: SHAPE_Length)
    * SHAPE_Area (Type: esriFieldTypeDouble, Alias: SHAPE_Area)

Supported Operations:   Query Layer

SomeGISGuy

But does 2.0 support VS 2008? I see the minimum install is VS 2010 and I m using WPF not silverlight.
We are using Expression Blend 3 .

VS2010 is only required for the Silverlight portion. You can continue to use VS2008 if you are doing WPF.

DominiqueBroux

But does 2.0 support VS 2008? I see the minimum install is VS 2010 and I m using WPF not silverlight.
We are using Expression Blend 3 .
So I don't think upgrading to 2.0 is possible at this time.

You are right.

I have checked with the sample and my code and it is similar I cannot figure out why the features layer is not rendered.

First, you have to figure out if the issue is coming from the server or from the client.
Try to request your service directly from your browser.
A request like http://sampleserver1.arcgisonline.com/ArcGIS/rest/services/Specialty/ESRI_StatesCitiesRivers_USA/MapServer/0?j=pjson must return the layer information.
A request like http://sampleserver1.arcgisonline.com/ArcGIS/rest/services/Specialty/ESRI_StatesCitiesRivers_USA/MapServer/0/query?text=&geometry=&geometryType=esriGeometryEnvelope&inSR=&spatialRel=esriSpatialRelIntersects&where=1%3D1&returnGeometry=true&outSR=&outFields=*&f=pjson must return a list of features.

If it's working well at the server level, there is probably an issue in your client code.
- verify the symbology you gave to your layer
- use fiddler (or firebug) to analyze the requests send to the server

xariaD

But does 2.0 support VS 2008? I see the minimum install is VS 2010 and I m using WPF not silverlight.
We are using Expression Blend 3 .
So I don't think upgrading to 2.0 is possible at this time.
I have checked with the sample and my code and it is similar I cannot figure out why the features layer is not rendered. 😞

Where is the code for web application created by ArcGIS server stored. Maybe I can compare those two codes.
😞

I really need to get this working.

DominiqueBroux

1) First option : migrate to 2.0 🙂

2) With 1.2, the symbology defined on the server side is not used by the silverlight API (so 'Change the symbology in ArcMap' is no longer an option).
You have to define the symbology on the client side. Here is a sample : http://resources.esri.com/help/9.3/arcgisserver/apis/silverlight/samples/start.htm#FeatureLayerRendering

That being said, this doesn't explain why your feature layer is not displayed.
Perhaps comparing your code with the sample will give some clue.

xariaD

Yeah, we are using 1.2. How to proceed in that case?

SomeGISGuy

I'm guessing you are still using v1.2?

xariaD

I have added two layers to my map.
ArcGISDynamicMapServiceLayer and Featurelayer.
But the feature layer is not displayed. 😞

However, if I create a Web application using the ArcGIS Server then both the layers are displayed.

Also, The Feature layer MouseLeftButtonDown is created with MouseButonEventArgs
private void Feature_MouseLeftButtonDown(object sender, Graphic graphic, MouseButtonEventArgs args)
{
}

DominiqueBroux

You can either change the symbology in ArcMap (so this symbology will become the default symbology for your published service), or change the symbology on the client side by using the renderer classes of the silverlight API.

To change the symbology in ArcMap :
- right click on the layer
- select 'Properties'
- go to 'Symbology' tab
- define the symbology you need.

To redefine the symbology on the client side, here is a sample http://help.arcgis.com/en/webapi/silverlight/samples/start.htm#FeatureLayerRendering

xariaD

Thank you so much, I am not a GIS Developer and this is my first encounter with ESRI and WPF.

I know this is not the right forum but since we are at it, I have converted a CAD file to ARCMap layers.
This map has 2 layers, polyline and polygon, from CAD file.
Now I selected the units in question and converted the selection to a new layer. Presently the units are represented as circle. How do I replace this with some symbol?

DominiqueBroux

At first it looks like a renderer question.
An 'UniqueValueRenderer' which allows to change the symbol depending on the value of a field should be what you are looking for.

Also, Upon clicking these units on the map some function should be performed.
How do we determine which unit has been clicked?

MouseLeftButtonDown event on a feature layer is called with a GraphicMouseButtonEventArgs which is giving the clicked graphic/feature.

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