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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

NadeemShaukat

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.

Robert,

I looked at the demo of your TOC widget and found it as a great addition of you work to other widgets you have written. However, when I added it to my project, registered to module, and compiled, it gave an error on line 12 of layerAlpha.mxml complaining about not finding the WidgetCloseButtonSkin. Here is the error message.
1172: Definition com.esri.viewer.skins:WidgetCloseButtonSkin could not be found.

Nadeem

RobertScheitlin__GISP

Nadeem,

Yep, that is a bug in the uncompiled version. to fix it all you have to do is change line 12 to:

import widgets.TOC.WidgetCloseButtonSkin;

I will get this fixed and release another version with the fix.

Anonymous User

Great widget!

I was wondering how I might disable the more.... button that is in the map switcher. I would much rather our folks use the TOC widget to view layers when needed, and not have both areas available. Also i was wondering if it is possible to show the features (that are displayed on the second tab) with the layers?

Thanks for the help!
TC

MarshallPlants

I don't know about showing the legend and visibility together but here is the answer to your first question.

In the config.xml file for your flexviewer, remove this line:
<widget right="20" top="55" config="widgets/MapSwitcher/MapSwitcherWidget.xml" url="widgets/MapSwitcher/MapSwitcherWidget.swf"/>

I also modified the portion of the code where Robert adds the widget to the config.xlm file to read:
<widget label="More Layers..." right="20" top="55"
This renames the widget to More Layers... to replace the code that you removed as per my instructions above and opens it the location of the old More Layers... button. I only have one Base Map in my project so this works for me. If you have more than one Base map this might cover up the base map selection buttons. After it is open, you can always move it or experiment with the numbers above to open it in a more convenient place.

Also, go to the TOCWidget.xml file in the \widgets\TOC folder and change the excluedeBasemapLayers from true to false and you can now turn off the Base Maps and/or change their visibility.

<excludeBasemapLayers>false</excludeBasemapLayers>

RobertScheitlin__GISP

Todd,

Or if you want to keep the basemaps in the togglebutton format that the mapswitcher provides than just edit you MapSwitcherWidget.xml to the below:

<?xml version="1.0" ?>
<configuration>
    <layerlist label="More..." visible="false">
        <!-- <excludelayer>TheLabelOfSomeLayerInMainConfig</excludelayer> -->
    </layerlist>
</configuration>

As far as adding the legend swatch to the tree, No you can not do that, Well yes you could if you are a good programmer, but I don't have any intention of doing that in my code.

Anonymous User

Thanks for both options. I'll play around with it and see which will work for our needs.

as far as the legend option, not a big deal just wondering if it could be done painlessly. i'm no programmer by any means.

Thanks again.

RaymondBlack

Hi Robert,

I have added your combined TOC/Legend widget to a project that I am working on, but I am having problems. I have built the widget from the source code. It is connected to an ArcGIS 10 Mapservice (Dynamic Layers). The TOC displays correctly, but when I click on the legend button, I just get a blank page. Even the legend label doesn't display. Have I missed something in the configuration?

Thanks,
++ Ray

RobertScheitlin__GISP

Ray,

The legend will only display layer that are in scale range to be visible and are checked to be visible in the toc. Also you might want to ensure that when you go to the rest services directory and to a specific layer that it contains drawingInfos.

RaymondBlack

Hi Robert,

Thanks for the response. I have checked the items that you suggested and all appears to be correct - just no legend displayed. See attached screenshots. Could it be something to do with the group layers?

Thanks,

++ Ray

TOC.PNG

definition.PNG

legend.PNG

RobertScheitlin__GISP

Ray,

Strange... Have you tried my dynamic legend widget? I would like to know if it is acting similarly?

RaymondBlack

Hi Robert,

I've just downloaded the dynamic legend widget now and installed it. Guess what - it's behaving exactly the same. Just a blank page. Must be something to do with how the mapservice is configured. Do I need to do anything special when I create the mxd? I have created a lot of customisations for my Flex viewer but I can't think of any that would conflict with your widgets.

Regards,
++ Ray

RobertScheitlin__GISP

Ray,

I have not seen this before or have ever had anyone report this issue... Is your map services publicly accessible?

RaymondBlack

Hi Robert,

Unfortunately not. I'm stuck behind firewalls etc. I'll have a go at tracing the code through to see if I can get something a bit more definitive. An error message would be nice 🙂

Thanks,

++ Ray

RobertScheitlin__GISP

Ray,

Are you using the source code version of the viewer? If so do you have the Flashplayer debug version installed on your machine?

RaymondBlack

Hi Robert,

Got it! Here's the catch. The mxd for the service I was using was created with ArcMap 9.3.1. I copied this mxd onto our ArcGIS 10 server and created a new map service using the ArcGIS Server manager on this machine. This mapservice is the one that failed to display the legend.
This morning I copied the mxd onto a machine with ArcMap version 10 and re-published the map service from there. Bingo! it works. I think there are some subtle differences between the way that the ArcGIS server manager creates services and the way that ArcMap creates them. I have also had the server manager fail to create services with raster layers in the past, even though ArcMap creates them just fine.
Anyway, thanks for the support (and the widget!). Hope I didn't cause too much panic.

Cheers,

++ Ray

RobertScheitlin__GISP

Ray,

That is great news and I will file away that bit of information for future support efforts.

MarshallPlants

Robert,

When using the compiled widget, is there anything that can be placed in the TOCWidget.xml to make the layers show up in the collapsed state by default rather than the expanded state? I have a long list of layers and would like for more of them to show up in the initial window and then make the user expand any that he needs to so that he sees what sub-layers are underneath.

RobertScheitlin__GISP

Marshall,

I think what you are asking for is this:

<tocSettings>
  <expanded>false</expanded>
 </tocSettings>

MarshallPlants

That did it!
Thanks

DanDowning

Robert,

I had been using TOCWidget2.1.1 with flexviewer 2.1. I recently have upgraded to flexviewer 2.2 and TOCWidget2.2 (compiled_FV2.2). I use the map switcher to control basemaps and the TOC widget for operational layers. The new TOCWidget2.2 default does not include:

<excludeBasemapLayers>true</excludeBasemapLayers>

When I add that line the basemap layers still show up in the TOC widget.

Here is the code:

<configuration>
 <labels>
  <visibilitylabel>Layer Visibility</visibilitylabel>
  <legendlabel>Show Dynamic Map Legend</legendlabel>
 </labels>
 <servicelabel>Parcel Data</servicelabel>
 <servicelabel>Aerial Photography</servicelabel>
 <tocSettings>
  <expanded>false</expanded>
 </tocSettings>
 <excludeLayers>
  <excludeLayer mapservice="Parcel Data">68</excludeLayer>
 </excludeLayers>
 <excludeGraphicLayers>true</excludeGraphicLayers>
 <excludeBasemapLayers>true</excludeBasemapLayers>
</configuration>

Should I still be able to remove the basemap layers from the TOC Widget?

Thanks in advance, I've really enjoyed your submissions to the widget gallery.

RobertScheitlin__GISP

Dan,

Thanks for pointing this out. I have it fixed in Version 2.2.1 available now.

DanDowning

Dan,

Thanks for pointing this out. I have it fixed in Version 2.2.1 available now.

Thanks Robert! and thanks again for all your contributions to the flexviewer.

EricVenden

We had the TOC widget working in the 2.1 viewer and have recently upgraded to the 2.2 viewer. We are using the latest TOC widget for the 2.2 viewer. The TOC does not seem to work properly with grouped layers in a published map service. There does not seeem to be a rhyme or reason to it's behavior. Has anyone else seen this same result? The map service has not changed from 2.1 to 2.2 viewers.

Thanks for your time.
Eric V
Gurnee, IL

RobertScheitlin__GISP

Eric,

You will notice that the TOC Tree functions the same way the layer list widget and the mapSwitcher's operational layers does. ESRI made some changes to the toc component so that when you uncheck the parent of the group it does not automatically turn on or off all of it's children. I think that they are are on the right track with there code changes (BUT they definitely are not there YET).

deleted-user-DeOizCraciXu

Robert,

Since I'm running server version 9.3.1 I needed to figure out a way to disable the legend icon in the widget, and since it didn't make sense to have the toc icon all by itself I removed that as well. The simplest way I found was to comment out the code that creates the buttons (see below). I'm wondering 1) is that the best way to disable the buttons and 2) can you add a config option to disable the buttons for non-programmers?

/*
    wTemplate.addTitlebarButton(ICON_URL + "i_folder.png", visibilityLabel, showStateVisibility);
*/
//<----------Legend Work
    //Add the new legend button
/*
    wTemplate.addTitlebarButton(ICON_URL + "i_legend2.png", legendLabel, showStateLegend);
    legendAC = new ArrayCollection([]);
    removeMapListeners();
    addMapListeners();
    registerAllMapLayers();
*/   
//<----------End Legend Work

Thanks for ALL your contributions to the community!

Tim Berneman
Website Manager
Cerro Gordo County - Iowa

RobertScheitlin__GISP

Tim,

I would suggest only commenting out the add button lines like below:

    //wTemplate.addTitlebarButton(ICON_URL + "i_folder.png", visibilityLabel, showStateVisibility);
//<----------Legend Work
    //Add the new legend button
    //wTemplate.addTitlebarButton(ICON_URL + "i_legend2.png", legendLabel, showStateLegend);
    legendAC = new ArrayCollection([]);
    removeMapListeners();
    addMapListeners();
    registerAllMapLayers();
//<----------End Legend Work

The way you have it, you are also commenting out the addMapListeners, registerAllMapLayers, etc. which initially would not be evident that it could cause you problems.

I will probably not add an option in the config as you suggest as you scenario is not a usual one. Most people would not be fooling with this widget for only the use of the TOC without the dynamic legend. At least I don't think.

EricVenden

I'm attempting to exclude layers from the TOC - not just in the legend, but in the actual layer listing. Is the LegendexcludeLayer tag strictly for excluding a layer from the legend? Additionally, I have set the following in my XML file:
<LegendexcludeLayer mapservice="Parcels">0</LegendexcludeLayer>
<LegendexcludeLayer mapservice="Parcels">4</LegendexcludeLayer>
<LegendexcludeLayer mapservice="Parcels">6</LegendexcludeLayer>
Where Parcels is the name of the map service and 0,4,and 6 the endpoints for the specific layers I would like to remove. Is this the correct syntax?

Thanks
Eric V
Gurnee, IL

giuseppemolinario

Hi Robert,

Thanks for this widget - I have seen it live and it is so far superior to what the new legend widget in v.2.2 does. It just makes a lot of sense, to have legend and layer switcher in the same place.

One thing I can't really figure out from documentation and forum is if your legend widget, or the one in v.2.2 distribution, support displaying legends of raster data.

I am also not a programmer, so unless this is a functionality that already exists, I will have to find some work around (drop legend widget altogether, try to go with the static displyed image on map solution - if i can get that figured out).

I'll try to install it and see what it does with my rasters - even if they don't work I would not know if the problem is the widget or if it is the raster format/etc..

Thanks for your help,

Giuseppe

RobertScheitlin__GISP

Giuseppe,

My legend definitely ignores rasters.

giuseppemolinario

Giuseppe,

My legend definitely ignores rasters.

Thanks Robert for the quick reply -

any idea if there is another widget out there that does?
to display a raster legend my only option is displaying a static jpeg like the US Static Mapper sample?
http://help.arcgis.com/en/webapps/flexviewer/live/index.html?config=config-thematic.xml

thanks

G.

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