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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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GauravMaske

Here is the map section of config.xml -
<map top="0"
         initialextent="-14083000 3139000 -10879000 5458000"
         fullextent="-16677000 2009000 -4819000 8330000"
         esrilogovisible="false"
         openhandcursorvisible="false">

        <lods>
   <lod resolution="156543.033928" scale="591657527.591555" level="0"/>
   <lod resolution="78271.5169639999" scale="295828763.795777" level="1"/>
   <lod resolution="39135.7584820001" scale="147914381.897889" level="2"/>
   <lod resolution="19567.8792409999" scale="73957190.948944" level="3"/>
   <lod resolution="9783.93962049996" scale="36978595.474472" level="4"/>
   <lod resolution="4891.96981024998" scale="18489297.737236" level="5"/>
   <lod resolution="2445.98490512499" scale="9244648.868618" level="6"/>
   <lod resolution="1222.99245256249" scale="4622324.434309" level="7"/>
   <lod resolution="611.49622628138" scale="2311162.217155" level="8"/>
   <lod resolution="305.748113140558" scale="1155581.108577" level="9"/>
   <lod resolution="152.874056570411" scale="577790.554289" level="10"/>
   <lod resolution="76.4370282850732" scale="288895.277144" level="11"/>
   <lod resolution="38.2185141425366" scale="144447.638572" level="12"/>
   <lod resolution="19.1092570712683" scale="72223.819286" level="13"/>
   <lod resolution="9.55462853563415" scale="36111.909643" level="14"/>
   <lod resolution="4.77731426794937" scale="18055.954822" level="15"/>
   <lod resolution="2.38865713397468" scale="9027.977411" level="16"/>
   <lod resolution="1.19432856685505" scale="4513.988705" level="17"/>
   <lod resolution="0.597164283559817" scale="2256.994353" level="18"/>
   <lod resolution="0.298582141647617" scale="1128.497176" level="19"/>
        </lods>


        <basemaps>

            <layer label="Streets" type="tiled" displaylevels=""
                   visible="true" 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://services.arcgisonline.com/ArcGIS/rest/services/World_Imagery/MapServer"/>

            <layer label="Aerial" type="tiled"
                   visible="false" alpha="1"
                   url="http://services.arcgisonline.com/ArcGIS/rest/services/Reference/World_Boundaries_and_Places/MapServer"/>

            <layer label="Bing Roads" type="bing"
                   visible="false" alpha="1"/>

            <layer label="Bing Hybrid" type="bing"
                   visible="false" alpha="1" style="aerialWithLabels"/>

            <layer label="None" type="tiled"
                   visible="false" alpha="1"
                   url=""/>

        </basemaps>



        <operationallayers>


         
            <layer label="US" type="dynamic" alpha="1" visible="true" format="png32"
                   url="http://<myserver>/ArcGIS/rest/services/GSM_MAP_US_1/MapServer"/>

   
            <layer label="Location (US)" type="feature" mode="selection" alpha="1" visible="true"
                   url="http://myserver/ArcGIS/rest/services/GSM_MAP_US_1/MapServer/0"/>

        </operationallayers>

    </map>

Thanks,
Gaurav

RobertScheitlin__GISP

Gaurav,

Thanks for the help. The issue is now resolved in Version 2.3.9.1.

MarcCavallaro

Robert, The TOC widget sure has come a long way, thanks for you perseverance. I tried out 2.3.9.1 and it loaded properly, but the Generating TOC Legend kept spinning and never went away. I do have Bing aerials in my operational layers (not my idea). Could that be causing the problem?

Thanks!

RobertScheitlin__GISP

Marc,

Yep the Bing map in the ops layers is an issue for the current version it will be fixed in the 2.3.9.2 version ASAP.

tikola_1-1770299294322.png

StuartBlumberg

Robert,

Is there a way to disable the transparency tool altogether? I have layers with transparencies preset in ArcMap and these layers have labels that are not transparent. When I have this widget enabled the transparency occurs for the entire layer, including the label. So basically I want the transparency to be dictated only by ArcMap and not the widget at all. I tried ripping out any code that had to do with transparencies but that only took the tool off the widget. Thanks.

RobertScheitlin__GISP

Stuart,

So are you saying that you want an option to remove the alpha slider completely or what exactly?

AndrewBlakey1

Is this where I can post about the Legend Widget or should I create a new thread?

I love the widget but am having an issue where opening the last layer group causes the flash container executable to consume 100% CPU time and hemorrhage memory until it crashes. I've tried making a base application with just that widget and it happens regardless of what legend items I include. Any obvious suggestions I've missed?

http://nipigon.uwaterloo.ca/sol2fv/ (third widget from left)

Thanks.

StuartBlumberg

Robert,

Yes, I would like to get rid of the transparency functionality altogether. Thanks.

RobertScheitlin__GISP

Andrew,

I don't know what the issue is YET but I am now looking into it. Hopefully I can resolve it soon.
Thanks for letting me know.

RobertScheitlin__GISP

Stuart,

The ability to remove the Transparency slider will be in the next version.

StuartBlumberg

Thank you Robert.

GauravMaske

Thank you Robert.

RoiMartinez

Hello! I was reading all the thread and I though that the problem with the metadata icon position was solved in the last released version.

But when I launch my Viewer, in the TOC Widget, the metadata icon overlap the layer name. Even when I resize the widget remains with the same width the layers content and metadata icon position.

only happens to me?

Thanks a lot in advance!

RoiMartinez

Hello again,

My provisional solution was incrementing the width in TOCWidget.mxml. But could be possible that the icon appears at the end of each layer name instead a fixed distance for all the icons?

thanks

RobertScheitlin__GISP

Roi,

That is a know issue with no current resolution right now. Keep checking back for new version.

DanDowning

Andrew,

I don't know what the issue is YET but I am now looking into it. Hopefully I can resolve it soon.
Thanks for letting me know.

I am having a very similar issue to Andrew except with the TOC widget. Opening the last layer group causes the flash container executable (plugin-container.exe) to consume 100% CPU time and hemorrhage memory until it crashes.

Here is the site: http://oscar.geoplan.ufl.edu/flexviewer_2.3.1/

Thanks for all the great widgets Robert!

Danny

RobertScheitlin__GISP

Dan,

Your posted url only give a proxy error.. But it don't really matter as this issue is still unresolved. There is a workaround that I have found for now though. Just put a simple symbol layer as the last layer in the toc and it works fine.

GarrettMoeller

Greetings,
I have been using the TOC widget successfully since the beginning of the year in a flexviewer app (compiled).
I see that there have been many updates since then.
Where do I go to get the latest update?

Also, I am curious whether it is possible to have the widget default to the legend instead of the layer list.

Thank you,
Garrett Moeller

RobertScheitlin__GISP

Garrett,

Same place you got it from the first time:

http://www.arcgis.com/home/item.html?id=e2cb71d5c04d40d19e9f945ae0db7ce8

You will notice that the legend is now integrated with the toc they are no longer to separate parts.

NathanEnge

Robert
I see you removed the white background on the TOC.
However some of my symbologies need to be quite light, and against the widget background its almost all washed out.
Is there a way to change the background colour or reduce the transparancey/opacity either through mxml or the config without changing the transparancey for all the other widgets if I were to do it from config.xml

RobertScheitlin__GISP

Nathan,

Sure in the TOCWidget.mxml just replace this portion:

<viewer:WidgetTemplate id="wTemplate"
                       height="300"
                       skinClass="com.esri.viewer.skins.WidgetTemplateSkin"
                       width="380">
    <s:BorderContainer borderVisible="false"
         backgroundColor="#ffffff"
         backgroundAlpha="0.6"
         height="100%" width="100%">
        <s:VGroup id="showTOC"
                  visible="true"
                  gap="8"
                  height="100%"
                  paddingTop="4"
                  width="100%">
            <s:HGroup gap="10" verticalAlign="middle" visible="{alphaVis}" includeInLayout="{alphaVis}">
                <s:Label styleName="WidgetText" text="Layer Visibility" paddingLeft="6"/>
                <mx:Image source="{alphaIcon}" width="20" height="20" toolTip="{AlphaToolTip}"/>
                <s:HSlider id="slider" 
                           minimum="0" 
                           maximum="1"
                           change="setLayerAlpha()"
                           dataTipFormatFunction="sldrDataTipFormatter"
                           liveDragging="true"
                           snapInterval="0.001" 
                           skinClass="widgets.TOC.alphaSliderSkin"
                           enabled="{layerIsSelected}"/>
            </s:HGroup>
            <s:Scroller id="scr" width="100%" height="100%">
                <s:Group>
                    <s:layout>
                        <s:VerticalLayout gap="1"/>
                    </s:layout>
                    <s:HGroup id="boxMessage"
                              width="100%"
                              includeInLayout="false"
                              visible="false" 
                              verticalAlign="middle"
                              horizontalAlign="center">
                        <mx:Image id="swfMessage"
                                  source="widgets/TOC/assets/images/loader.swf"/>
                        <s:Label id="txtMessage"
                                 width="90%"
                                 text="{GeneratingLegendMsg}"/>
                    </s:HGroup>
                    <toccomp:TOC id="toc"
                                 width="100%"
                                 height="100%"
                                 itemRollOver="setLastTreeItem(event)"
                                 itemClick="setSelectedTreeItem(event)"
                                 metadataToolTip="{MetadataToolTip}"
                                 showMetadataButton="{showDesc}"
                                 expanded="{expanded}"
                                 legendCollapsed="{legendCollapsed}"
                                 liveScrolling="false"
                                 variableRowHeight="true"
                                 tocMinWidth="{wTemplate.width - 45}"
                                 scroller="{scr}"
                                 loader="{boxMessage}"/>
                </s:Group>
            </s:Scroller>
    </s:VGroup>
    </s:BorderContainer>
    <s:BorderContainer width="{slider.width}" height="{slider.height}" includeInLayout="{alphaVis}"
    x="{slider.x}" y="{slider.y}" alpha="0.01" visible="{!slider.enabled}"
    toolTip="{AlphaToolTip}"/>
    </viewer:WidgetTemplate>

RobertScheitlin__GISP

Danny and Andrew,

I have uploaded version 2.4.1 today that has the memory leak fixed and I added back in the Flex Viewer 2.3.1 compiled version to the download in case you have yet to update to Flex Viewer 2.4.

DanDowning

Danny and Andrew,

I have uploaded version 2.4.1 today that has the memory leak fixed and I added back in the Flex Viewer 2.3.1 compiled version to the download in case you have yet to update to Flex Viewer 2.4.

Used the 2.3.1 update and everything is working great now.

Thanks Robert!

RobertScheitlin__GISP

Roi.Mar,

I have fixed the issue with REALLY long label names in version 2.4.1 in the 3:10 PM release. Let me know if it resolves your issue.

JacksonTrappett

Hi, thanks Robert for creating a widget that finally does TOC the right way! Also thanks for todays release that fixed the leak bug.

Sorry to be the bearer of new bug reports, but after today's update, I'm getting one where my layer names are disappearing as I interact with the legend. I attached a shot of the problem. The longer I interact (expand, scroll, turn on/off, etc) the more of them seem to go, but I haven't managed to narrow down exactly when they disappear, it doesn't seem to be the same every time. If you need my config/services or anything else to help track it down, let me know!

Thanks,
Jackson

legend.png

AndrewBlakey1

Danny and Andrew,

I have uploaded version 2.4.1 today that has the memory leak fixed and I added back in the Flex Viewer 2.3.1 compiled version to the download in case you have yet to update to Flex Viewer 2.4.

Thanks a lot for your timely help. It's a fantastic widget and works great now.

RobertScheitlin__GISP

All,

Stay tuned Jackson posted that there is a bug in the latest version that is causing the labels to randomly disappear. I have this fixed already but I am trying to see if I can add KML support before I release again.

RobertScheitlin__GISP

All,

A new version for FV-2.3.1 and FV-2.4 has been uploaded

Version 2.4.2 - 1 August, 2011, 8:40 PM
* Fix for the disappearing labels
* TOCWidget now respects what has been set in the MapSwitcherWidget and vise versa.
* Minimal support for KML layers has been added. Legend swatches are not supported yet as the API's support of KMLLayer is not matured yet.
* Uncompiled code is written for Flex Viewer 2.4 ONLY!

Version 2.3.9.2 - 1 August, 2011, 8:40 PM
* This probably will not happen ever again but I wanted to have a good stable Flex Viewer 2.3.1 version of this widget available so I have added the compiled version with the memory leak fix and the follow-up fix for the disapearing labels.
* Uncompiled code is written for Flex Viewer 2.4 ONLY!

CharlesHarris

Hi Robert-

I've noticed that your TOC widget doesn't seem to work properly with the Sample "ThematicQuery" widget. When the ThematicQuery widget is initialized a new layer is shown in the TOC called "Thematic Selection Layer" but the Legend is never generated. It seems as though the ThematicQuery widget is only intended to be used with the StaticImage widget as it only has a string property which points to an image of the intended legend.

Can you point me in the right direction of getting these two widgets to work together properly? What we would like to see is that when the ThematicQuery widget is initialized the TOC/Legend will show the layer who's radio button is pressed in the widget (both name and legend component).

Thanks!

Jeremy

philippschnetzer

Robert,

Nice updates! Can you tell me where I can change the colour value of the Layer name when that layer is not visible? I am using a white background and cannot see the layer name when its not visible at that scale range. I know I could use a different widget background colour but would much rather just make the layer name darker. Thanks!

Phil

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