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Identify Widget 3.6.2 for Flex Viewer: raster layer names will not display

BarnabyRockwell

Using the 3.6.2 version of the Identify Widget, I cannot get names of attributed, ERDAS Imagine (.img) raster layers to display when I click on a pixel in the Flex app to identify. In the 3.0.2 version of the widget for Flex Viewer 3.0, the layer name would be displayed for these raster layers. How can I get the layer name to be displayed along with the other results? I am using ArcGIS 10.2 for Server and Flex Viewer 3.6, on Windows Server 2008 R2 x64. I have not installed the Flex API, just the Flex Viewer.

Behavior is the same with widget version 3.5.1 for Flex Viewer 3.5.

Layer names for vector layers are displayed with Identify results, just not the layer names of the Imagine .img files. In Widget settings, if I try and add a layer from one of these rasters, the services are seen, but no "addable" features are shown, so I cannot add them.

In my current xml configuration for the widget, I completely removed the <layers> section. So there is no layer info in the xml for any layer. Everything seems to work fine except for the .img layers for which no layer names are displayed.

This image shows identify results on one of the .img files using Identify widget 3.0.2 in Flex Viewer 3.0, using ArcGIS for Server 10.0 (sp5), in Firefox:

[ATTACH=CONFIG]30682[/ATTACH]

This image shows identify results on one of the .img files using Identify widget 3.6.2 in Flex Viewer 3.6, using ArcGIS 10.2 for Server, in Firefox:

[ATTACH=CONFIG]30683[/ATTACH]

Thank you in advance...

Flex3.0.jpg

Flex3.5-6.jpg

85378Flex3.0.jpg

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Accepted answers

BarnabyRockwell

The issue was found about a year ago, and has been fixed in ArcGIS 10.2.1 for Server.

Case closed! 🙂

---------------------------------------------

However, note that raster layers are still not shown in Add Layer dialog of ID widget in App Builder, as shown in this post above:

http://forums.arcgis.com/threads/101169-Identify-Widget-3.6.2-for-Flex-Viewer-raster-layer-names-will-not-display?p=360160&viewfull=1#post360160

even when using Server 10.2.1, Flex Viewer 3.6, and ID widget 3.6.2.

All comments

Anonymous User

Original User: Pingu

Robert,
thanks a lot, I'll test with this.

Robert,
Finally turned out the problem was with the map service. Feature and raster layers were in together in one map service. After publishing two different ones, the features and the rasters separately, the widget was working perfectly and reporting the values from polygons and underlying pixels at the same time.
thx again

BarnabyRockwell

Ok. Thanks again! 🙂

Anonymous User

Original User: rscheitlin

Barnaby,

Not in that old version.

BarnabyRockwell

YES!!!!!!!!!!!!!!!!!!!!!!!!! 😄 Thanks, Robert!

I now see that the <name> field is used to identify the layer, not the <id> field. Is it possible to change the name of the layer as displayed in the ID widget results? Changing the name for display purposes is one of the main reasons I am editing the xml.

Anonymous User

Original User: rscheitlin

Barnaby,

Not sure what is going on with you not being able to start a new thread but I am experiencing issues with the forums today as well.

Version 3.0 was pretty different when i came to configuring layers. Here is what works for me:

        <layer>
            <name>3/27/13 - reduced vegetation suppression - AA11</name>
            <fields>
                <field name="MaterialID" alias="Material ID"/>
                <field name="Pixel value" alias="Value"/>
            </fields>
            <links/>
            <zoomscale>2000</zoomscale>
            <forcescale>true</forcescale>
        </layer>

Anonymous User

Original User: brESRI

Ok, I have wasted enough time attempting to make a new thread, so here is another question which I hope Robert can answer.

-----------------------------------------------------------

Hello again, I have another question for Robert regarding XML configuration of the ID widget for raster layers.

I am using Identify Widget 3.0.2 for Flex Viewer 3.0 with ArcGIS Server 10 and cannot upgrade to newer versions of Server or Flex at this time.

I want to configure the ID widget xml for raster layers so that only certain fields are reported (in this case the "MaterialID" and pixel value attributes). Here is the raster layer:

http://cmerwebmap.cr.usgs.gov/ArcGIS/rest/services/Landsat7_West/MapServer/2

Using this xml,

    
<layers onlythese="false">
        <layer>
            <name>Landsat 7 - Northwestern U.S. - 3/27/13 - reduced vegetation suppression - AA11</name>
            <id>2</id>
            <url>http://cmerwebmap.cr.usgs.gov/ArcGIS/rest/services/Landsat7_West/MapServer</url&gt;
            <fields>
                <field name="MaterialID" alias="Material ID"/>
                <field name="Value" alias="Pixel Value"/>
            </fields>
            <links/>
            <zoomscale>2000</zoomscale>
            <forcescale>true</forcescale>
        </layer>

I get this ID result:

[ATTACH=CONFIG]31801[/ATTACH]

which is the same as if I didn't alter the XML at all. Nearly the same XML as shown above works perfectly on the same raster layer using ID Widget 3.6.4 and Server 10.2.1 (see image below):

[ATTACH=CONFIG]31802[/ATTACH]

    <layers onlythese="false">
        <layer>
            <name>Landsat 7 - Northwestern U.S. - 3/27/13 - reduced vegetation suppression - AA11</name>
            <id>2</id>
            <url>http://servername_10.2.1/ArcGIS/rest/services/Landsat7_West/MapServer</url&gt;
            <fields>
                <field name="MaterialID" alias="Material ID"/>
                <field name="Pixel Value" alias="Pixel Value"/>
            </fields>
            <links/>
            <zoomscale>2000</zoomscale>
            <forcescale>true</forcescale>
        </layer>

Is there a way to configure the XML to limit the displayed fields reported for this raster?

Thank you in advance, Robert! 🙂

ID_results_10.2.1.jpg

ID_results.jpg

BarnabyRockwell

I have tried ~20 times, using 3 different browsers, to post a new thread that is related to this one, but the attempts time out every time. What is going on with this forum? :mad:

Anonymous User

Original User: Pingu

Robert,
thanks a lot, I'll test with this.

RobertScheitlin__GISP

Kinga,

Sure here it is.

IdentifyWidget.txt.zip

Anonymous User

Original User: Pingu

Robert,
would you be so kind to send me the xml code of your configuration? I would crosscheck it with the one I used.

RobertScheitlin__GISP

Kinga,

I just tested using 3.6.4 and was able to get results from a raster layer beneath a vector polygon (see screenshot).

[ATTACH=CONFIG]31706[/ATTACH]

Must be your configuration.

preview.jpg

Anonymous User

Original User: Pingu

Robert,
thanks again, waiting for your answer

RobertScheitlin__GISP

Kinga,

I will have to do some testing on that exact senario.

Anonymous User

Original User: Pingu

Hi Robert,
Thanks for your quick response. Just to clarify:
- if I use identify for more than one overlapping polygon geometry vector layers the widget works perfectly
- if I use identify for more than one overlapping raster layers the widget works perfectly as well (reporting the pixel values of different raster layers)
- the problem shows if I click to a place where a polygon of a vector layer overlapping with a raster layer; in this case the 'all layers' option reporting the values of the upper vector layer correctly but the pixel value of raster layer below is missing, while at the same location the pixel value is reported correctly when the upper vector layer is turned off.
do you have any idea or solution for this special situation? the point of using this identify widget is to get information simultaneously from overlapping vector and raster layers.
thanks in advance!

RobertScheitlin__GISP

Kinga,

As explained in this thread a raster does not return a list of fields from its REST Service Endpoint. This means that you can not configure a raster layer in the same manner you would a vector. The best thing to do is in App Builder set the 'only these' to false. This may be all you need to do, but if you are like most and want to specify certain fields and field formats then you go on to the next steps. Now identify your raster layer and take note of the returned results.
[ATTACH=CONFIG]31700[/ATTACH]
Using this info you can find the fields of the raster that are being returned by the identify task but not reported by the REST Service end point. Now you will manually add the layer and the fields to the IdentifyWidget.xml using this info.

        <layer>
            <useproxy>true</useproxy>
            <name>3/27/13 - reduced vegetation supression - AA11</name>
            <id>2</id>
            <url>https://someserver/arcgis/rest/services/someservice/MapServer</url&gt;
            <fields>
                <field name="Red" alias="Red"/>
                <field name="Green" alias="Green"/>
                <field name="Blue" alias="Blue"/>
                <field name="Contrast" alias="Contrast"/>
                <field name="Materialid" alias="Material Id"/>
                <field name="Count" alias="Count"/>
                <field name="Opacity" alias="Opacity"/>
                <field name="Pixel Value" alias="Pixel Value"/>
                <field name="OID" alias="Object Id"/>
            </fields>
            <links/>
            <zoomscale>2000</zoomscale>
            <forcescale>true</forcescale>
        </layer>

preview.jpg

Anonymous User

Original User: Pingu

I have another issue regarding identify widget.
Using Flex Viewers 3.6.4 and Identify widget with the configuration to display raster layers as well.
Gives back the result from each layer, one by one, even the results from all layers if they are vectors or if they are all rasters. When displaying vector and raster layers at the same time and try to identify "all layers" no results can be seen from the raster layer, only the vectors. Would you please advise how to configure the xml in order to be able to get the results back from all layers at the same time from vector and raster types of data?

BarnabyRockwell

Got it. Thanks, Robert! 🙂

Anonymous User

Original User: rscheitlin

Barnaby,

I am still confused as to why ArcMap Identify can read the layer name from the published service

This is because ArcMap would use SOAP communiction and all the WebAPIs use REST.

As it sits right now with the Server not returning the layername for raster map services and not returning any fields like it does for vector mapservices, there is nothing to do except file this incident with tech support.

BarnabyRockwell

Robert, thanks again for all your help. I think we have pinned down the issue to a bug in Server 10.1+. I will file a tech support request about this, and point to this thread, your last post in particular.

Having hundreds of overlapping layers to allow for easy comparison is one of the main purposes of my app, so I cannot remove any layers, and anyway everything works perfectly on Server 10.0/Flex 3.0.

I am still confused as to why ArcMap Identify can read the layer name from the published service if "ArcGIS Server does not return any fields in the REST Service endpoint for rasters" as you wrote. The layer names do appear to be in the REST as shown here:

10.0 (layer name is read from REST endpoint using Identify function):

http://cmerwebmap.cr.usgs.gov/arcgis/rest/services/Landsat7_West/MapServer/2

10.2 (layer name not present in REST endpoint):

http://www.sciencebase.gov/arcgis/rest/services/usminmap/Landsat7_West/MapServer/2

I will bring this up with tech support. Let me know if you discover a way to get your widget to get the layer names of the rasters without having to edit the xml for every raster layer. I could supply you with a sample attributed raster for testing if it could help you in development.

Best regards,
Barnaby

Anonymous User

Original User: rscheitlin

Barnaby,

The reason that the service explorer in App Builder does not list any layers under that map service is because AcrGIS Server does not return any fields in the REST Service endpoint for rasters. All of these factors you are running up against is beyond our control. Changes will have to be made to ArcGIS Server and that is not going to happen until people like yourself call tech support and log Bugs or Enhancement requests to have these issues changed.

Yes configuring 60 to 100 raster layer could be daunting (maybe you should reconsider the scope/purpose of your web map). Normally maps should be specific and purpose driven and not just have every layer and the kitchen sink. 🙂

BarnabyRockwell

Robert, from where did you learn to put the

<id>2</id>

in that xml? Was it here:

http://www.sciencebase.gov/arcgis/rest/services/usminmap/Landsat7_West/MapServer

Edit: And yes, I got the layer name to display for that layer using the edited xml!! But I am daunted by the task of adding the layer info for 60-100 raster layers! 😞

An example:

http://www.sciencebase.gov/arcgis/rest/services/usminmap/Regional_Studies_pub/MapServer

some of those are vectors, but a vast majority are rasters.

Here is a shot of the Add Layers dialog for the widget in App Builder. No addable layers are shown under the service, but there are 4 rasters layers in there? I guess I have to manually edit the xml, eh?

[ATTACH=CONFIG]30726[/ATTACH]

Is there a way to alter your widget so that the <name> attribute is automatically added for all layers?

Untitled.jpg

BarnabyRockwell

GREAT! That's just what I'm looking for. Stay tuned...

I did remove the widget from my app in App Builder and then re-add it, but still there was data from the old version in the Identify widget folder of my app. I had to rename that folder and then re-add the widget to get the correct version to display.

Anonymous User

Original User: rscheitlin

Barnaby,

Once you ensured that the latest versions of the widgets are in App Builder by going through the manage custom widgets as I suggested. All you need to do is remove the widgets from your test site and re-add the widget.

Yes the layer name does appear in my tests:

[ATTACH=CONFIG]30724[/ATTACH]

Based on this configuration being used:

        <layer>
            <name>3/27/13 - reduced vegetation supression - AA11</name>
            <id>2</id>
            <url>https://www.sciencebase.gov/arcgis/rest/services/usminmap/Landsat7_West/MapServer</url&gt;
            <fields>
                <field name="Red" alias="Red"/>
                <field name="Green" alias="Green"/>
                 <field name="Blue" alias="Blue"/>
                 <field name="Contrast" alias="Contrast"/>
                 <field name="Materialid" alias="Material Id"/>
                 <field name="Count" alias="Count"/>
                 <field name="Opacity" alias="Opacity"/>
                 <field name="Pixel Value" alias="Pixel Value"/>
                 <field name="OID" alias="Object Id"/>
            </fields>
            <links/>
            <zoomscale>2000</zoomscale>
            <forcescale>true</forcescale>
        </layer>

Preview.jpg

BarnabyRockwell

When you say that the edited xml worked perfectly, did you see layer names in the ID results? If so, could you post a screenshot? I do not, at least so far.

And I removed and re-installed the 3.6 series widgets, but the old version #'s are still listed when I ALT-click the widget titles.

ALT-click:

[ATTACH=CONFIG]30721[/ATTACH]

App Builder:

[ATTACH=CONFIG]30722[/ATTACH]

Edit: Ah -ha! I had to rename the Identify widget folder, and then re-add the 3.6.2 widget to my app, and now I see correct version! So I have just learned that the widget folder in the flexviewers app folder tree should be deleted/cleared when upgrading widget versions. Who know what problems will occur when you overwrite widgets???

widgets.jpg

alt.jpg

Anonymous User

Original User: rscheitlin

Here is a shot of ArcMap 10.2 into which I loaded the Landsat7_West map service from the 10.2 Server. The ArcMap Identify tool results do show the layer name as expected:

http://cmerwebmap.cr.usgs.gov/images/untitled.jpg

Barnaby, Yep. ArcMap and ArcGIS Server are two different animals.

Anonymous User

Original User: brESRI

My network is having severe problems this morning, so I will retry my test app using the edited xml. I will also re-install the widgets.

And yes, I was referring to App Builder.

BarnabyRockwell

Here is a shot of ArcMap 10.2 into which I loaded the Landsat7_West map service from the 10.2 Server. The ArcMap Identify tool results do show the layer name as expected:

http://cmerwebmap.cr.usgs.gov/images/untitled.jpg

Anonymous User

Original User: rscheitlin

Barnaby,

I added the layer configuration you suggested to my xml, but still the layer names will not display, so that does not appear to be a resolution to my issue*.

I tested this using your mapservice and version 3.6.2 of my Identify Widget and it worked perfectly.

I am not aware of anything you can do to get ArcGIS Server 10.1 or 10.2 to return the layer name for rasters.

My web app contains about 60+ such rasters, so I sincerely hope that I don't have to manually enter all that information into the xml for each of them.

for the widget to be configured properly you will have to list each layer (assuming you want the rasters layer names) On a side note of this do your end users really need to see the Red, Green, Blue, OID and other fields of your raster layers?.. If not then you eliminate these fields by doing the configuration of that layer manually as I have suggested.

On a private Flex app on my test server, the Identify widget version is listed as 3.5.1 when I use the ALT method, even though version 3.6.2 is installed

Assuming that you are still talking about using App Builder. I would suggest that you use the manage custom widgets in app builder and remove all your custom widgets and re-add the 3.6 versions (because the ALT key method of determining versions of my widgets you are using is the most accurate tell of the real version your app is using).

BarnabyRockwell

Hi Robert,

First of all, thank you for the awesome widget, without which my Flex apps would be nearly useless. As goes the widget, so goes my app. I'm surprised that such core identify functionality isn't built into the Flex Viewer as it is so important, especially as it is built into the now-defunct .NET viewer that is available in Server 10.0.x.

Second, thank you for your reply to my inquiry. I appreciate your help! I am not a web developer, and am learning all this Server stuff on the fly to get my maps online. So please forgive my ignorance when it comes to configuring your widget.

I manage the cmerwebmap web app. The ScienceBase app is managed by another group in another office/division, and they are responsible for handling the viewer and widgets for their web app. This group suggested that I remove the <layers> section, as that is how they got the widget to work for them. I will suggest to them that they update their widgets to current versions.

I am experimenting with Server 10.2 and Flex Viewer 3.6 on another test machine to explore the functionality differences with Server 10.0/Flex 3.0 on our operational server. With Server 10.0, the Identify widget 3.0.2 worked perfectly after install with no configuration whatsoever.

I added the layer configuration you suggested to my xml, but still the layer names will not display, so that does not appear to be a resolution to my issue*. The issue appears to be that the Server is not returning the layer names of my rasters, as you mentioned. I tried those urls you provided, and it is interesting that Server 10.0 returns exactly what I want, and Server 10.2 does not, all from the same raster data. Do you or anyone else know if there is a way for me to make Server 10.2 to return those layer names as Server 10.0 did? If there is no way to do so, I doubt I will ever upgrade my operational server beyond 10.0. I wonder if that is a bug with Server 10.1 and 10.2?

* (My web app contains about 60+ such rasters, so I sincerely hope that I don't have to manually enter all that information into the xml for each of them. I cannot get the Add Layers functionality to work when editing widget settings in the Flex App Builder, as I mentioned in my first post, which may be related to how Server 10.2 serves the raster layers.)

(On a private Flex app on my test server, the Identify widget version is listed as 3.5.1 when I use the ALT method, even though version 3.6.2 is installed. The Swipe widget version is listed as 3.5 even though 3.6 is installed. ELayerlist widget version is listed as 3.5.1 even though 3.6 is installed.)

Thanks again!

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