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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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AYounas

Hi Robert,

I am having an issue here i.e. I cannot see the symbols on 5th level sublayers. Please see the attached image where it says water after layer 3, there should be a symbol as well, which is not there. Any help please?

Regards,

Adi

[ATTACH=CONFIG]13883[/ATTACH]

TOC.png

CK1

Hi Robert,
I test it with other mapservices and it shows, that every layer from the service (which are excluding in TOC) is shown when I checked some other layer from the service, though the �??excludelayer�?� is unchecked in the service.
Greetings C K

RobertScheitlin__GISP

C K,

Yep I have almost got this bug fixed. I has been a difficult one.

RobertScheitlin__GISP

All,

Version 2.5.1 - 4 May, 2012
* Fixed bug with loading legend remaining when there is no operational layers or when a WMS layer is used or when a layer fails to load due to some error.
* MAJOR CHANGE when a layer of a map service or the whole mapservice is excluded using the excludelayers it is excluded from the TOC and the map. This has changed from where it use to be visible in the map even though it was excluded from the TOC. *Clarification* If you want to exclude a whole map service from the toc and the map then you just remove it from the viewers main config. Currently if you exclude a map service and do not specify any sublayers then the mapservice will remain in the map.
* Mapservices are ordered in reverse order of what you have in the main config.xml, just like esri's layerlist and map switcher.
* There is a new 'everything' attribute on the tocsettings expanded tag. This forces all layer/sublayer/legends to be opened. If you use the everything="true" attribute than the collapselegends is ignored. There are still situations where a map service will fail to expand due to some network delay occurring for that map service.
* Individual Layer of a Map Service now have a TOC menu for zooming to its extent.

MLowry

Hey Robert, I'm getting an error in line 269 in toc.toc.tocClasses.TocLayerMenu when clicking "description" on an individual layer in a service.
I see in the readme, "* Individual Layer of a Map Service now have a TOC menu for zooming to its extent." But that doesn't mention adding metadata to each layer there.

I do have new esri description turned on to send the user to the REST page.

Any ideas?

 private function descriptionOrDownload_clickHandler():void
            {
    if (_toc.UseESRIDesc){
                 var url:String;
                 if (_layer is OpenStreetMapLayer){
                     url = "http://www.openstreetmap.org";
                 }else if (_layer.hasOwnProperty("url")){
                     url = Object(_layer).url;
                     if (_layer is WMSLayer)
                         url += "?SERVICE=WMS&REQUEST=GetCapabilities";
                 }
                 if (url){
                     var request:URLRequest = new URLRequest(url);
                     navigateToURL(request, _layer.id);
                 }

Error line in red I believe. Working on a workaround currently.

Also, compiling with 4.5.1a

Also, Esri needs to hire Robert.

RobertScheitlin__GISP

M Lowry,

That has been fixed now. Get version 2.5.1.1

MLowry

M Lowry,

That has been fixed now. Get version 2.5.1.1

Thanks Robert; you the man.

LefterisKoumis

Giuseppe,

There is a new version available that has the exclude layer capability.

Hello Robert. I applied the excludelayer tag on the latest version of the TOC widget and I can see that the layer Schools is no longer present in the TOC. However, as you zoom in, you can see the school layer (school bus icons) is still visible. If I read the documentation correctly in this last version of the TOC, the school layer should not be visible in the map as well. Correct?

http://svctenvims.dot.ca.gov/soundwall_gis/districts/index.html?config=district_config/d3/d3_config.xml

Thank you.

RobertScheitlin__GISP

Lefteris,

Straight from the readme.txt

* MAJOR CHANGE when a layer of a map service or the whole mapservice is excluded using the excludelayers it
is excluded from the TOC and the map. This has changed from where it use to be visible in the map even
though it was excluded from the TOC. *Clarification* If you want to exclude a whole map service from the
toc and the map then you just remove it from the viewers main config. Currently if you exclude a map service
and do not specify any sublayers then the mapservice will remain in the map.

MLowry

Robert, I don't suppose there is anything we can do to fix this leak shown in the Debug Mode in Flash Builder?
Any direction you could lead me to look into it or is it no big deal?

[SWF] \bin-debug\widgets\TOC\TOCWidget.swf - 511,883 bytes after decompression
warning: The class widgets.TOC.toc.tocClasses.LegendDataClassItem has been used in a call to net.registerClassAlias() in _TOCWidget_FlexInit. This will cause widgets.TOC:TOCWidget to be leaked. To resolve the leak, define widgets.TOC.toc.tocClasses.LegendDataClassItem in the top-level application.   
warning: The class widgets.TOC.toc.tocClasses.LegendDataItem has been used in a call to net.registerClassAlias() in _TOCWidget_FlexInit. This will cause widgets.TOC:TOCWidget to be leaked. To resolve the leak, define widgets.TOC.toc.tocClasses.LegendDataItem in the top-level application.   
warning: The class widgets.TOC.toc.tocClasses.LegendSymbolItem has been used in a call to net.registerClassAlias() in _TOCWidget_FlexInit. This will cause widgets.TOC:TOCWidget to be leaked. To resolve the leak, define widgets.TOC.toc.tocClasses.LegendSymbolItem in the top-level application.

LefterisKoumis

Lefteris,

Straight from the readme.txt

THank you and I apologize for wasting your time. I should have read it more thoroughly.

CK1

Hey Robert,

thanks for the new Version and the Major Change. Great Stuff.

RobertScheitlin__GISP

M Lowry,

I will look into it.

AdrianKordylas

Hello,

My name is Adrian and I'm student from Poland. I have download your widget and it is great! However, I have little problem with largeness of symbols. In enclosed file you can see what I mean. Images are too large and text titles are covered. Can I modify this widget to repair this and how can I do it? Could you help me?

Thanks,
Adrian

My project: http://www.warszawskastarowka.pl/mapa/

legend.jpg

RobertScheitlin__GISP

Adrian,

Wow I can't believe you are the first to report this issue. The fix is 2 simple lines of code and I will add them to the next release. If you happen to be using the uncompiled version than you can add the fix your self by opening the TocMapLayerItem.as and find the loadImage function and add the two lines below in red:

        private function loadImage(imageData:String):Image
        {
            const base64Dec:Base64Decoder = new Base64Decoder();
            base64Dec.decode(imageData);
            const byteArr:ByteArray = base64Dec.toByteArray();
            
            const loader:Loader = new Loader();
            const lc:LoaderContext = new LoaderContext(false);
            const image:Image = new Image();
            image.maxHeight = 30;
            image.maxWidth = 30;
            loader.contentLoaderInfo.addEventListener(Event.COMPLETE,
                function(e:Event):void
                {
                    image.smoothBitmapContent = true;
                    image.source = e.currentTarget.content;
                });
            loader.loadBytes(byteArr, lc);
            return image;
        }

Also you may want to st your maps top attribute back to 40 unless you have some reason for the 100 empty pixels above your map.

Don't forget to click the top arrow (promote).
as shown in the below graphic:

GregBowie

RS,

I am having trouble with the TOC. I have it in the config file and I turned off the layervisibility in the map switcher. When the viewer loads and I open the Map Contents 1) nothing shows up, 2) the symbols are unknown to the legend, 3) I can no longer zoom in or out (only pan).

Some of the layers do not have defined min/max (could that be the issue?). Even layers that do have defined min and max (such as my mosaic dataset), does not show up.

Thoughts?

Here is a screen grab for reference.

Greg

[ATTACH=CONFIG]14303[/ATTACH]

issue.png

RobertScheitlin__GISP

Greg,

A couple of questions...

Are you using Flex Viewer 2.5?
Is your ArcGIS Server at least version 10?

Hopefully you saw these requirement in the documentation of the download.

GregBowie

Yes on both fronts. I went through the read-me file and made sure to follow the instructions. I will note that the same issue occurs with the "Legend" widget from ESRI.

Greg,

A couple of questions...
Are you using Flex Viewer 2.5?
Is your ArcGIS Server at least version 10?
Hopefully you saw these requirement in the documentation of the download.

RobertScheitlin__GISP

Greg,

Hmm... that actually helps a lot. it points to the possibility that you have changed something in the standard setup of your ArcGIS Server. Did you happen to disable anonymous access to your ArcGIS output folders or change some setting in IIS to require authentication?

GregBowie

The viewer is actually in beta testing and hidden behind a firewall; so that may be the issue there.

RobertScheitlin__GISP

Greg,

I would recommend learning and using an http traffic util like fiddler or charles, or you could use Firefox web browser with firebug addin to see what requests are being made and which ones are failing.

AdrianKordylas

Adrian,

Wow I can't believe you are the first to report this issue. The fix is 2 simple lines of code and I will add them to the next release. If you happen to be using the uncompiled version than you can add the fix your self by opening the TocMapLayerItem.as and find the loadImage function and add the two lines below in red:
        private function loadImage(imageData:String):Image
        {
            const base64Dec:Base64Decoder = new Base64Decoder();
            base64Dec.decode(imageData);
            const byteArr:ByteArray = base64Dec.toByteArray();
            
            const loader:Loader = new Loader();
            const lc:LoaderContext = new LoaderContext(false);
            const image:Image = new Image();
            image.maxHeight = 30;
            image.maxWidth = 30;
            loader.contentLoaderInfo.addEventListener(Event.COMPLETE,
                function(e:Event):void
                {
                    image.smoothBitmapContent = true;
                    image.source = e.currentTarget.content;
                });
            loader.loadBytes(byteArr, lc);
            return image;
        }
Also you may want to st your maps top attribute back to 40 unless you have some reason for the 100 empty pixels above your map.

Don't forget to click the top arrow (promote).
as shown in the below graphic:

I will wait for the next release because I don't now how I can install the uncompiled version 🙂

Adrian

ANDREACARVELLI

Hi Robert, I'm using TOC widget in a FlexViewer 2.5 with ArcGIS 10 map services. I've noticed that moving up and down map services sometimes happens that a visible dummy item is placed between two map services. It still present in new TOC version (2.5.1.1) do you have any idea?
Thanks,
Andrea

RobertScheitlin__GISP

Andrea,

The only way this should be able to occur is if you did not heed my warning in the documentation

* It is your responsibility to disable the layerlist portion of the MapSwitcherWidget or eMapSwitcherWidget by setting the        *
* <layerlist visible="false">                                                        *
* Also ensure you do not use the TOCWidget with the LayerListWidget.                                    *

GiosiaPoma

Hi Robert,
I've reported this problem of big images in TOC in this post and after your suggestions I've posted the solution

Now this post is too big and not easy to find solutions... Thank you for all!

Adrian,

Wow I can't believe you are the first to report this issue. The fix is 2 simple lines of code and I will add them to the next release. If you happen to be using the uncompiled version than you can add the fix your self by opening the TocMapLayerItem.as and find the loadImage function and add the two lines below in red:
        private function loadImage(imageData:String):Image
        {
            const base64Dec:Base64Decoder = new Base64Decoder();
            base64Dec.decode(imageData);
            const byteArr:ByteArray = base64Dec.toByteArray();
            
            const loader:Loader = new Loader();
            const lc:LoaderContext = new LoaderContext(false);
            const image:Image = new Image();
            image.maxHeight = 30;
            image.maxWidth = 30;
            loader.contentLoaderInfo.addEventListener(Event.COMPLETE,
                function(e:Event):void
                {
                    image.smoothBitmapContent = true;
                    image.source = e.currentTarget.content;
                });
            loader.loadBytes(byteArr, lc);
            return image;
        }
Also you may want to st your maps top attribute back to 40 unless you have some reason for the 100 empty pixels above your map.

Don't forget to click the top arrow (promote).
as shown in the below graphic:

RobertScheitlin__GISP

Giosia,

Thanks for reminding me. With 20 plus widgets in the gallery and all I do on the forums it is hard to keep it all straight. In the next release I will have the maxHeight and maxWidth set, (not sure why I didn't get that in when you pointed it out...).

DerekHunter1

Great widget Robert. Your work really helps many.

Is it possible to compile the source code using the Flex API 3.0 library for use in the pre-released ArcGIS Flex Viewer 3.0?

RobertScheitlin__GISP

Derek,

All my widget will work with 3.0 when it has gone final. There is still alot going on as far as changes to the 3.0 Pre Release (you shound never really use a pre release for production).

DerekHunter1

Thanks. I'm just in preparation.

DerekHunter1

Should tiled operational layer's symbology not be visible in the TOC widget? I apologize in advanced if my reading of the entire thread missed the answer.

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