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Feature Labels in Flex Viewer

NadeemShaukat

I have scale dependent labels for features in my dynamic service but they are not showing up in the Flex Viewer environment. However, they show up if I use the same service in an application outside the Flex Viewer.

Is anyone else experiencing the same?

If anyone at ESRI knows the reason, please respond.

Thanks

Nadeem

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MatthewMalone

Hey Matt, I'd recommend just go with editing the .xml. The App. Builder is really for people that are not comfortable with editing the .xml, and given that you're a GIS Coordinator and GISP, you should have no issue with that. Your life will be much better just getting the job done in the .xml vs. using a GUI.

Thanks for your input, but being a GIS professional doesn't automatically assume comfort levels with any/all aspects of .xml hacking. It's a matter of speed and ease of creation, which is the reason the App Builder exists in the first place. I don't miss tweaking the minutia of ArcIMS files a decade ago, so the Flex GUI is what makes my life better.

BharathiChandran

What if I want to label features that are exposed for editing?
The IDs for the newly created features are auto generated at the database level and not entered by the user. So, I need them to be displayed on saving the new feature. Is there any way to do it?

Thanks,
Bharathi

FionaHatfield

Your issue is not the App Builder program it is your use and understanding of how to add operational layers. If you look in my attached graphic you will see when I choose a map service and chick on a map service (represented by the folder icon, number one in the image) and then click the Include button. It will add the Whole map service as a dynamic layer (that supports the drawing of label that are setup in ArcMap). You you double click the folder then you get a list of individual layers of that map service and when you choose one of those layers and click include that LAYER of the Map Service gets add and is added to the map as a feature layer (which does not support labeling). So just click the map service folder (not choosing individual layers) and you will be able to add dynamic layers to the map.

[ATTACH=CONFIG]22959[/ATTACH]

This is EXACTLY the answer I was looking for. I *hope* esri includes this in their documentation, because I spent a good 2 hours looking for the answer in the "ArcGIS Viewer for Flex" online documentation. I almost gave up on this thread because it looked like it was going in a different direction. Thank you Richard for taking the time to answer this!

DasaPaddock

You can set a definition expression on dynamic sublayers. See:
http://resources.arcgis.com/en/help/flex-viewer/concepts/index.html#/Dynamic_Tiled_Feature_and_Image_layer_types/01m300000053000000/

sunjian

I come across the same question! It's boring very much!

BertaZamora

I have the same issue. I have a feature layer that has labels. On this layer defines a dynamic definition expression. Change to dynamic layer does not work for me because I can not set a definition expression.

Is there any way to do this?

ElizabethDonahue

OK, I finally figured out the solution to this question, and yes it will pick up the lablels you have specified on your GIS server. I encountered this problem until I changed the type from tiled,or feature, to "dynamic" and then just specify the mapserver url, not a specific layer number for the layers map server. So it would look like the following:

<layer label="Your Layer" type="dynamic" visible="false" alpha ="0.7"
url="http://gis.srh.noaa.gov/ArcGIS/rest/services/SPC_Convective_outlooks/MapServer"/>

Good luck

This worked perfectly Thanks!

DanPrice

Robert
Thank you. That helps & I have a greater understanding of this.

GISDev01
Thank you as well. I'd like to get into xml more & more but they got me bogged down creating pretty maps & drawings rather than actually advancing our organizations GIS...sigh.

GISDev1

I'd also like to follow up on cub_fan_dan's post about the labeling capabilities. Basically, I'm in the same boat. We're trying to transition from the .NET interface to Flex using the Flex Builder application. We're also running into the issue of dynamic labels. I've published my MXD from ArcGIS for Desktop 10.1 with the labels turned on with scale dependencies, but they don't draw in the Flex app. Based on this thread, I altered the config.xml and set my layer type to "dynamic" which is recognized when you re-open the app in Flex Builder, but then it locks up the Builder when you attempt to edit this reclassified dynamic layer.

I'm really impressed with the Flex Builder, but somewhat shocked that such a rudimentary and critical function such as labeling isn't simplified in this tool. Hopefully this thread will shed some more light on adding these functions directly into the Flex Builder interface.

Thanks!
-Matt

Hey Matt, I'd recommend just go with editing the .xml. The App. Builder is really for people that are not comfortable with editing the .xml, and given that you're a GIS Coordinator and GISP, you should have no issue with that. Your life will be much better just getting the job done in the .xml vs. using a GUI.

RobertScheitlin__GISP

Guys,

Your issue is not the App Builder program it is your use and understanding of how to add operational layers. If you look in my attached graphic you will see when I choose a map service and chick on a map service (represented by the folder icon, number one in the image) and then click the Include button. It will add the Whole map service as a dynamic layer (that supports the drawing of label that are setup in ArcMap). You you double click the folder then you get a list of individual layers of that map service and when you choose one of those layers and click include that LAYER of the Map Service gets add and is added to the map as a feature layer (which does not support labeling). So just click the map service folder (not choosing individual layers) and you will be able to add dynamic layers to the map.

[ATTACH=CONFIG]22959[/ATTACH]

Preview.png

S123ScreenShot2.PNG

MatthewMalone

I'd also like to follow up on cub_fan_dan's post about the labeling capabilities. Basically, I'm in the same boat. We're trying to transition from the .NET interface to Flex using the Flex Builder application. We're also running into the issue of dynamic labels. I've published my MXD from ArcGIS for Desktop 10.1 with the labels turned on with scale dependencies, but they don't draw in the Flex app. Based on this thread, I altered the config.xml and set my layer type to "dynamic" which is recognized when you re-open the app in Flex Builder, but then it locks up the Builder when you attempt to edit this reclassified dynamic layer.

I'm really impressed with the Flex Builder, but somewhat shocked that such a rudimentary and critical function such as labeling isn't simplified in this tool. Hopefully this thread will shed some more light on adding these functions directly into the Flex Builder interface.

Thanks!
-Matt

DanPrice

Rhett
Please forgive me as I am brand new in flex viewer (like 2 days old), but how do you load into flex viewer as dynamic? Is this done wihin the MXD, the publishing process, or within flex viewer itself? When I add the published map service from my GIS Server into the flex viewer into the map from the Operational Layers, there is no option for dynamic. Do I have to add the script somewhere (like in Don' post)?

Basically I want to add my address points (with the house number labeled on top of the point) & our city govermental district polygons (and label them as "District 1"... "District 2"... etc) to our flex viewer map. When I started my flex viewer map it showed the address labels, but when I added the district polygons with labels, nothing is showing up now.

Thanks
Dan

RhettZufelt

John,

If you publish the service with the labels on in ArcMap, and you load into the flexviewer as dynamic (like above post), you should see the labels as they appear in ArcMap.

It will even honor scale dependant labeling.

If you load as tiled, you would have to re-generate all you tiles after you have turned on the labels and re-published the service.

R_

JohnTuohy

Is there a way to have your labels appear in your flex viewer application, much the way that they appear in your ArcGIS map sessions? Where you don't have to click to see a label?

NR-DonCoppleGISS

OK, I finally figured out the solution to this question, and yes it will pick up the lablels you have specified on your GIS server. I encountered this problem until I changed the type from tiled,or feature, to "dynamic" and then just specify the mapserver url, not a specific layer number for the layers map server. So it would look like the following:

<layer label="Your Layer" type="dynamic" visible="false" alpha ="0.7"
url="http://gis.srh.noaa.gov/ArcGIS/rest/services/SPC_Convective_outlooks/MapServer"/>

Good luck

NadeemShaukat

I have another issue related with Flex and Flex Viewer that I had posted 2 weeks ago on the Flex Viewer forum but user community did not respond. It's about rotating labels on a chart axis in Flex Viewer environment.

I wonder if ESRI flex team can respond. The link for the post is http://forums.arcgis.com/threads/21011-Labels-Rotation-on-Line-Chart-Axis-in-a-Widget?highlight=Nadeem

Nadeem

MehulChoksey

If you want to just use one layer then may be using Robert's Identify Widget or search widget would be the way to go.
As far as supporting the FeatureLayer labeling client side, its not in the queue for next milestone for sure.

NadeemShaukat

Mehul,

This may work, but user has to turn 2 layers, one for labels, and the other for info.

Is is technically difficult for ESRI to support labeling in feature layers? Are there any plans in next versions?

Thanks for your prompt solution.

Nadeem

MehulChoksey

You could use visiblelayers attribute of the layer tag.
e.g

 <layer label="Oil Spill" type="dynamic" visible="true" url="myurl" visiblelayers="0,1,4" />

NadeemShaukat

Mehul,

I tried it and it works but it will plot all layers in the service. This will not leave a control for me to turn layers on and off.

Is there a way around?

Thanks

Nadeem

MehulChoksey

Labelling for featuerlayer on client side is not supported by Flex api.
To achieve what you want,
Add two layers instead of one as shown below.
first layer of type dynamic-pointing to mapservice (note /mapserver in url)- This will render labels.
second layer of type dynamic - pointing to featurelayer (note training /0 in the url) This will fetch attributes for the feature. Also set the alpha to 0. so that features are not rendered on top of the first layer.
Hope this helps.
e.g.

<layer label="HomeLand Security Incident Points" type="dynamic" visible="true" 
                   url="http://sampleserver3.arcgisonline.com/ArcGIS/rest/services/HomelandSecurity/operations/MapServer"/>

             <layer label="HomeLand Security Incident Points" type="feature" visible="true" 
                   info="widgets/InfoTemplates/SimpleInfoWinWidget.swf" alpha="0"
                   infoconfig="widgets/InfoTemplates/IWT_IncidentPoints.xml"
                   url="http://sampleserver3.arcgisonline.com/ArcGIS/rest/services/HomelandSecurity/operations/FeatureServer/0"/>

NadeemShaukat

Could you also send the url of the first basemap layer thats added to the map?
That layer determines the spatial reference of the map.
Also if you could send the HTTP REST request/response by capturing through firebug / fiddler/ httpfox etc.

Mehul,

Thanks for the following up.

Below are the lines of the basemap. My feature classes data is also in WGS_1984_Web_Mercator_Auxiliary_Sphere.

I could not follow your last question. I access my feature layers through config.xml.

Thanks

Nadeem

<basemaps>
          <layer label="Streets" type="tiled" visible="false" alpha="1"
              url="http://server.arcgisonline.com/ArcGIS/rest/services/World_Street_Map/MapServer"/>
          <layer label="Aerial" type="tiled" visible="false" alpha="1"
              url="http://server.arcgisonline.com/ArcGIS/rest/services/World_Imagery/MapServer"/>
           <layer label="Topo"    type="tiled" visible="false" alpha="1"
              url="http://server.arcgisonline.com/ArcGIS/rest/services/World_Topo_Map/MapServer"/>
</basemaps>

MehulChoksey

Could you also send the url of the first basemap layer thats added to the map?
That layer determines the spatial reference of the map.
Also if you could send the HTTP REST request/response by capturing through firebug / fiddler/ httpfox etc.

NadeemShaukat

Are you using Time widget?
Is it possilble for you to share your config file?

Mehul,

Thanks for the reply.

I am not using the Time widget. This is for dynamic layers of my data. Below is is from the main config.xml file (Operational Layers block). This layer is one of the several layers which has scale dependent city names as labels that are not showing up in the Flex Viewer application. You may try these lines in one of your flex applications and see if labels apperar. I am also including the map extent.

Thanks

Nadeem

<layer label="Cities" type="feature" visible="true" alpha="1"
                   info="widgets/InfoTemplates/SimpleInfoWinWidget.swf"
                   infoconfig="widgets/InfoTemplates/KNRD_Cities.xml"
                   url="http://gisdev.wrime.com/ArcGIS/rest/services/KNRDGIS/MapServer/3"/>

<map initialextent="-13421000 5702000 -12519000 6373000" fullextent="-13421000 5702000 -12519000 6373000">

MehulChoksey

Are you using Time widget?
Is it possilble for you to share your config file?

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