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Table of Contents - Legend Widget for FlexViewer 2.x

RobertScheitlin__GISP

All,

Here is the next in my line of widgets for the FlexViewer 2.x.

The legend portion of this widget is the same code as my dynamic legend widget so,

IT IS FOR ARCGIS SERVER 10 OR GREATER ONLY

This is just a simple TOC Widget that includes my dynamic legend component.
This widget also includes my enhancement for map service transparency,
right click context menu for zoom to make layer visible, and my scale
dependent renderer for the TOC checkboxes.

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Accepted answers

All comments

RobertScheitlin__GISP

GIS Dev,

That was a pretty complicated change that involves multiple files that I had to make to resolve an issue that someone reported with a class break renderer only having one break. It is to complicated for me to try and explain as it involves the TocMapLayerItem.as, TocLayerInfoItem.as, and the TocItemRenderer.as. It is likely this widget will be rewritten completely soon.

RobertScheitlin__GISP

GIS Dev,

Here is the GitHub Repo:

https://github.com/rscheitlin/TOC

AlexMahrou

Does this work with 10.1? I can't seem to get my legend items to populate at all.

RobertScheitlin__GISP

Alex,

I have done testing with a 10.1 server and it works fine...

AlexMahrou

Robert,

I could paste my code, but it might be easier to link you to the viewer.

May I pm you a link to my viewer?

RobertScheitlin__GISP

Alex,

I have disabled PM in my profile as I answer on the average 6 posts a day and allowing people to contact me though PM would get overwhelming. I can tell you that if you are using secure services than the TOC widget presently does not support them. I can also tell you that esri will be adding legend swatches to their TOC components like the LayerListWidget and MapSwitcherWidget, but a release milestone has not be made public yet (The reason I mention this is because theirs will likely support secure services).

AlexMahrou

You nailed it... I'm using secured services. I'll wait for Esri to release this. It's been a long time coming for them to fold the legend widget into the Layer list. Thanks for everything that you do Robert!

RobertScheitlin__GISP

Alex,

Now I do have to say if you have your token as part of the url for the services you are using them it will probably work in my TOC.

DanMiller

Hi Robert and other developers,

Are dynamic layers able to be grayed out for scale dependent rendering? For some reason, my dynamic layers aren't graying out when their scale is out of range (i.e. disappearing on the map), only type=feature.

Dan

RobertScheitlin__GISP

Dan,

Dynamic layer Absolutely support scale dependent rendering. It is the individual layer that show the scale dependency though and not the parent map service if it does not have scale dependency set for it.

DanMiller

Thanks for that info Robert... I figured it did and it was just a data setting.

DanMiller

Hi Robert and devs,

Is there a way to add my own jpg/png custom icon to render instead of a dot? I think older versions of flex viewer allowed us to use the icon=<path to jpg> in the config files for operational layers, but it seems to not be working anymore.

Thanks,
Dan

RobertScheitlin__GISP

Dan,

You can setup a renderer for the layer in the main config.xml. Here is an example:

            <layer label="Renderer Example" type="feature" visible="true"
                   url="http://sampleserver1.arcgisonline.com/ArcGIS/rest/services/Louisville/LOJIC_PublicSafety_Louisville/MapServer/2">
                   <simplerenderer>
                           <picturemarkersymbol url="assets/images/i_sun.png" width="30" height="30" angle="3"/>
                   </simplerenderer>
            </layer>

DanMiller

Dan,

You can setup a renderer for the layer in the main config.xml. Here is an example:

            <layer label="Renderer Example" type="feature" visible="true"
                   url="http://sampleserver1.arcgisonline.com/ArcGIS/rest/services/Louisville/LOJIC_PublicSafety_Louisville/MapServer/2">
                   <simplerenderer>
                           <picturemarkersymbol url="assets/images/i_sun.png" width="30" height="30" angle="3"/>
                   </simplerenderer>
            </layer>

Thanks Robert, that did the trick. However, is there a way to get the sun icon from your example to also render in the TOC Widget as a sun icon (versus the traffic cam icon)? Additionally I'm using your Dynamic Legend as well so that would cool to know since I print out maps with the D.Legend - it's also showing up as the original Traffic Cam icon there as well. In a nutshell, unfortunately I don't have the option of changing the icon at the data level so this would be amazing.

I have the uncompiled 3.1 code as well and am messing around but have been unsuccessful so far.

RobertScheitlin__GISP

Dan,

The only way I can think of right now is if you have a 10.1 ArcGIS Server and use code like in this sample to change the map service layer renderer at the server:

http://resources.arcgis.com/en/help/flex-api/samples/01nq/01nq00000072000000.htm

GISDev1

Hey Robert, I finally got the Identity Manager token the work with your TOC widget, along with any tokens provided in the config.xml which you have added already. I had to modify the ViewerContainer and made a custom sign in window in order to do it though, along with changed to the TOC widget source code.
I don't think the Esri Flex API v3.1 stores the generated token from the Identity Manager anywhere, so I stored it myself which is why all the other changes were necessary.

Would you like me to share my code with you, or are you figuring out a way to do it without modifying all the other things?

RobertScheitlin__GISP

GIS Dev,

I have a Beta version right now that does all of it in the widget. This link is to the compiled widget, but if you want to test it out I would appreciate and input.

http://forums.arcgis.com/threads/75331-Legend-Widget-not-Refreshing?p=267156&viewfull=1#post267156

RobertScheitlin__GISP

GIS Dev,

I also re-wrote a lot of the toc/tocClasses and have the renderer using spark components instead of mx. I have the github site up to date with the 3.1.3 version. I will add the 3.1.4 version in a minute so you can see the IdentityManager stuff.

KevinThomas

Hi Robert,
First let me thank you for all your great widgets!

I just got the 3.1 version of this and Group Layers don't seem to be working... You can see them in the TOC but the checkboxes do not work. This is true for me even in your sample. Once I uncheck the Symbols >> symbols.SDE.Labels I am not able to check it again...

thanks again,
Kevin

RobertScheitlin__GISP

All,

Version 3.1.5 - Feb 4, 2013
* Fixed issue with turning on or off sublayers of a group.

One important note if you have a group turned off and all of its sub layers turned off as well then the group will not be able to turn back on until at least on of the sublayers is turned on.

ronaldmcfarlane

All,

Version 3.1.5 - Feb 4, 2013
* Fixed issue with turning on or off sublayers of a group.

One important note if you have a group turned off and all of its sub layers turned off as well then the group will not be able to turn back on until at least on of the sublayers is turned on.

GitHub and ArcGIS.com both have 3.1.4 not 3.1.5. Maybe I'm too early.

RobertScheitlin__GISP

Ronald,

Try again. I believe I have all the links updated now.

ronaldmcfarlane

Robert:
You are correct, thanks again!

DanMiller

Hi Robert and others,

I can't seem to get this service working in the TOC widget. Not sure if it's actually the service or something with my Flex Viewer? I am receiving a bunch of errors trying to load it in my operational layers.
http://tm2-elb-1378978824.us-east-1.elb.amazonaws.com/arcgis/rest/services/LiveFeeds/NOAA_storm_reports/MapServer

Dan

RobertScheitlin__GISP

Dan,

I loads for me without errors in Version 3.1.5 of the TOC Widget... Which version are you using?

GISDev1

Hi Robert and others,

I can't seem to get this service working in the TOC widget. Not sure if it's actually the service or something with my Flex Viewer? I am receiving a bunch of errors trying to load it in my operational layers.
http://tm2-elb-1378978824.us-east-1.elb.amazonaws.com/arcgis/rest/services/LiveFeeds/NOAA_storm_reports/MapServer

Dan

Service is loading into my TOC widget just fine like this:

<layer label="Test" type="dynamic" visible="false"
                   url="http://tm2-elb-1378978824.us-east-1.elb.amazonaws.com/arcgis/rest/services/LiveFeeds/NOAA_storm_reports/MapServer"/>

DanMiller

Dan,

I loads for me without errors in Version 3.1.5 of the TOC Widget... Which version are you using?

Hey Robert and GISDev01,

The latest version did the trick, I had been using 3.1.4. Thanks!

Dan

ScottMcGee

I'm using Robert's TOC/Legend widget (I'm using the version that is posted on http://www.arcgis.com/home/item.html?id=e2cb71d5c04d40d19e9f945ae0db7ce8 - I downloaded it about 10 days ago, so I'm not sure if there's a more current version). Anyway, the widget works just fine, but I have come across an issue when exporting the web map to a PDF file, and I'm not sure if the issue is related to the TOC/Legend or to the Export Web Map tool. So I thought I'd post this here in case anyone has some insight on the issue.

First, some background. I've created a web mapping app (using ArcGIS 10.1 and Flex 3.1) and added the Print widget to the map so that users can export/print their web map. I also created my own custom map template MXD files to use in place of the default map templates that are provided in ArcGIS.

My custom map templates have a dynamic legend that shows only layers and features that appear in the viewed map extent. Everything works as expected in my map template MXD. As I zoom out, more different types of features are shown in the map, with their corresponding symbols being added to the dynamic legend. Likewise, when I zoom in to a smaller area, there are fewer different types of features, and the dynamic legend has correspondingly fewer symbols. So that all works just fine in my MXD template.

However, when I use the Print widget (which uses the Export Web Map tool) in my web map to export the currently viewed map to a PDF file, the legend in the resultant PDF actually has two legends: one legend is coming from Robert's TOC/Legend widget, and the other legend is the dynamic one from my map template MXD. You can see this in the attached file named 1-Correct-Map--Wrong-Legend.jpg. This isn't what I need - I need only the dynamic legend from my MXD.

In troubleshooting the issue, in my web map I turned off visibility for all layers (except the raster base map) and exported to PDF. The resultant PDF correctly shows only the dynamic legend from my MXD template, but of course with all the layers turned off in the web map, the map is blank, except for the raster base map (see attached file named 2-Wrong-Map--Correct-Legend.jpg).

So what I need is the map from #1 (which comes from the current view in the web map) and the dynamic legend from #2 (which comes from my MXD template). I used #1 and #2 to create a mock-up in Photoshop that shows what I want my web-map-exported-PDF file to look like (see attached file named 3-Desired-Result.jpg - this exactly matches my MXD template).

I'm not sure how Robert's TOC/Legend widget and the Export Web Map tool interact with each other. But logically it seems that one of two scenarios is taking place:

Scenario 1
Robert's TOC/Legend widget is taking the lead and passing it's legend to the Export Web Map tool, which in turn adds it to the dynamic legend that exists in the MXD template. If this is the case, then is there a way to have Robert's TOC/Legend widget suppress the sending of its legend to the Export Web Map tool?

--or--

Scenario 2
The Export Web Map tool is taking the lead and requesting the current web map legend, which is dutifully supplied by Robert's TOC/Legend widget. If this is the case, is there a way to tell the Export Web Map tool to not request the legend from the web map, and instead use only the dynamic legend from the MXD template?

So, any thoughts on how I can achieve the desired web-map-exported-with-a-dynamic-legend-PDF result?

(does any of this even make sense?)

Thanks,
Scott

[ATTACH=CONFIG]22491[/ATTACH][ATTACH=CONFIG]22492[/ATTACH][ATTACH=CONFIG]22493[/ATTACH]

1-Correct-Map--Wrong-Legend.jpg

2-Wrong-Map--Correct-Legend.jpg

3-Desired-Result.jpg

ScottMcGee

Thanks to Robert's expert help, I've solved the issue I posted directly above. All I needed to do was insert the <excludelayerfromlegend> tag in my Print widget XML file in order to exclude the desired layers from the dynamic legend in my MXD template.

This explains the Print widget configuration:
http://resources.arcgis.com/en/help/flex-viewer/concepts/index.html#/Print_widget_tags/01m30000001n000000/

Scott

Erickson_Contract_Surveying_

No matter what values I set for Expand Everything or Collapse Legend, I cannot get Legend to show. At first I thought that my presence of Groups were causing issues. But I removed everything from the groups and the issue persisted. Can someone tell me definitively what combination of settings causes everything including the symbology of the legend to be visible?

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