topic Re: Identify Widget 3.6.2 for Flex Viewer: raster layer names will not display in ArcGIS Viewer for Flex Questions

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

BarnabyRockwell — Tue, 21 Jan 2014 21:32:21 GMT

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...

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

BarnabyRockwell — Tue, 21 Jan 2014 21:53:17 GMT

BTW, here is a public Flex app using Server 10.0, Flex Viewer 3.0, and Identify Widget 3.0.2. Layer names for all Imagine attributed rasters will display properly:

http://cmerwebmap.cr.usgs.gov/flexviewers/min7_demo_pub/

Here is a public Flex app using Server 10.1, Flex Viewer 3.5+ (I don't know exact versions of Flex Viewer and Identify widget). Layer names for all Imagine attributed rasters will not display:

https://www.sciencebase.gov/flexviewer/USMinMap/

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

Anonymous User — Sat, 11 Dec 2021 14:49:49 GMT

Original User: rscheitlin

Barnaby,

I am not sure where to begin. Well your new site is using the ArcGIS Viewer for Flex 3.6 (you can know this by right clicking on the map and choosing "About ArcGIS Viewer for Flex"). You are using version 3.4 of my Identify widget (not a good idea to use an old version in the new viewer). You should also update your other widgets of mine to the latest versions, i.e. TOCWidget version 3.4 to the eLayerListWidget 3.6, Swipe Spotlight Widget version 3.3.1 to version 3.6. You can know what version of most of my widgets you are using (in the last several releases) by holding the ALT key and clicking on the widget title.

I have not programed the widget to be configured the way you are configuring it. You should have a minimum of:

<layers onlythese="false" />

But even that is ill advised and considered lazy configuration.

Your 3.0 version of the viewer and widget worked the way you desire because it is connecting to your 10.01 server and identify results were returned differently with that server version.

on your new server the layers name for your img files is not returned by the server.

Here are some urls for you to paste in your browsers address bar to demonstrate the difference.

Old Server:
http://cmerwebmap.cr.usgs.gov/ArcGIS/rest/services/Landsat7_West/MapServer/identify?geometryType=esriGeometryPoint&geometry=-13457161.577658717%2C4844889.40911028&sr=102100&layers=all&time=&layerTimeOptions=&layerdefs=&tolerance=5&mapExtent=-17688715.46352495%2C2491851.930380039%2C-8296133.427844986%2C6968004.306758771&imageDisplay=1920%2C915%2C96&returnGeometry=false&maxAllowableOffset=&f=HTML

New Server:
https://www.sciencebase.gov/arcgis/rest/services/usminmap/Landsat7_West/MapServer/identify?geometry="x"%3D-13457161.577658717%2C"y"%3D4844889.40911028&geometryType=esriGeometryPoint&sr=102100&layers=all&layerDefs=&time=&layerTimeOptions=&tolerance=5&mapExtent=-17688715.46352495%2C2491851.930380039%2C-8296133.427844986%2C6968004.306758771&imageDisplay=1920%2C915%2C96&returnGeometry=false&maxAllowableOffset=&geometryPrecision=&dynamicLayers=&returnZ=false&returnM=false&gdbVersion=&f=html

Now this is not a show stopper but it is a problem when users do not configure the IdentifyWidget.xml specifically for their data layers.

So the resolution is to configure the widget for your data:

    <layers onlythese="false">
        <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>
            <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>
</layers>

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

BarnabyRockwell — Wed, 22 Jan 2014 16:28:13 GMT

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!

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

Anonymous User — Wed, 22 Jan 2014 17:21:50 GMT

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).

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

BarnabyRockwell — Wed, 22 Jan 2014 17:26:39 GMT

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

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

Anonymous User — Wed, 22 Jan 2014 17:28:48 GMT

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.

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

Anonymous User — Wed, 22 Jan 2014 17:35:52 GMT

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.

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

BarnabyRockwell — Wed, 22 Jan 2014 17:42:26 GMT

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???

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

Anonymous User — Sat, 11 Dec 2021 14:49:52 GMT

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>
            <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>

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

BarnabyRockwell — Wed, 22 Jan 2014 18:25:19 GMT

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.

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

BarnabyRockwell — Sat, 11 Dec 2021 14:49:55 GMT

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?

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

Anonymous User — Wed, 22 Jan 2014 19:08:18 GMT

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. 🙂

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

BarnabyRockwell — Wed, 22 Jan 2014 21:10:50 GMT

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

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

Anonymous User — Thu, 23 Jan 2014 01:48:55 GMT

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.

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

BarnabyRockwell — Thu, 23 Jan 2014 15:18:09 GMT

Got it. Thanks, Robert! 🙂

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

BarnabyRockwell — Tue, 28 Jan 2014 19:09:10 GMT

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.

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

Anonymous User — Mon, 24 Feb 2014 12:14:00 GMT

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?

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

RobertScheitlin__GISP — Sat, 11 Dec 2021 14:49:59 GMT

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>
            <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>

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

Anonymous User — Mon, 24 Feb 2014 12:51:13 GMT

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!