Flaring Clustered Map Points

Following the last post, It would be nice to inspect the clustered set of map points when say the set is less than a dozen or so. In this post, I'm demonstrating something I call a FlareSymbol, which is a Symbol sub-class, where like before, the number of clustered points is shown. But, when you click on the cluster, it flares out to show the individual map points. Each flared point can react to say a mouse click to popup an info window showing its attribute values. When you click again on the cluster, it collapses the map points back to its center. Here it is in action. And like usual, you can download the source from here.

Comments

thunderhead said…
Some folks have been contacting me saying that the app has "issues" - looks like it has to do with FP9 - try running it in FP10 - sorry about this !
December 22, 2008 at 1:45 PM
ldphelps said…
Have you done any work combining the Cluster App with the Flare App ?
August 25, 2009 at 2:13 PM
Lance said…
It seems to work fine your site, but when I download the code and compile in Flex 1.3, it has an issue.

It will run, but after I expand a point, then contract it, and click on it again, I get an error: RangeError: Error #2006: The supplied index is out of bounds.
at flash.display::DisplayObjectContainer/addChildAt()
at mx.core::UIComponent/http://www.adobe.com/2006/flex/mx/internal::$addChildAt()[C:\autobuild\3.2.0\frameworks\projects\framework\src\mx\core\UIComponent.as:5083]...

Any ideas?
December 28, 2009 at 4:54 PM
Henry said…
Hi Lance,

To fix the Error#2006 problem:

In "flareIn_tweenEndHandler", replace the line "graphic.parent.removeChild( graphic )" with "GraphicsLayer(graphic.parent).remove(graphic)"

That is, use the method 'remove' rather than 'removeChild'.


HTH.
July 8, 2010 at 1:28 AM
Unknown said…
Is this codes still available? I cannot seem to download it from your link. It looks like it would be a great option for us.

Thanks
October 29, 2010 at 3:49 PM
Anonymous said…
me too....I can't download the code...
December 15, 2010 at 12:50 PM
thunderhead said…
Sorry all for the broken link - find the new version here http://thunderheadxpler.blogspot.com/2010/08/image-flare-symbol-for-clustered.html
December 16, 2010 at 4:33 AM
Post a Comment

Popular posts from this blog

How to use Esri Flex API on Android and iPhone

Image
Update (Jun 2011) : For more updated info, check out my ADC article here . At MAX2010 (Awesome BTW) Adobe introduced Flex SDK Hero and Flash Builder Burrito which enables you to build and deploy Flex mobile applications on Android by default. In addition, using the revitalized Packager for iPhone , you can postprocess the swf into an ipa that you can deploy on an iPhone using iTunes. In this post, I will share with you the steps that I took to use the Flex API for ArcGIS to build a mobile mapping application. First and foremost - RTFM - here are some links that u _need_ to read specially for iPhone provisioning: http://opensource.adobe.com/wiki/display/flexsdk/Hero http://labs.adobe.com/technologies/flashbuilder_burrito/ http://labs.adobe.com/technologies/packagerforiphone/ The cool part of this whole process is now you have one code base to build upon and deploy on Android and iPhone and in the future whatever mobile platform Adobe decides to support. You can download ...
Read more

Weighted Map Feature Clustering With Attributes

Image
Was asked if the WeightedClusterer can cluster features not just by proximity but by proximity and attribute property value. The idea is that there should be at least one cluster per unique attribute property value. Let me explain further:  The above snapshot is a clustering of cities based on proximity and country - note that despite the proximity of Belgium and The Netherlands, two distinct clusters have been created one for BE and the other for NL - now for France - there is a cluster containing one feature over Paris, however due to the distance from Paris (at that scale) a cluster was created based on 3 cities in the south of France. Make sense ? In the implementation of the AttrClusterer class that extends the ESRIClusterer class, we override the clusterGraphics function. This function is invoked indirectly by the Flex framework during the update of the display list. In this function, we overlay a virtual grid on the map. This grid acts as a spatial index. Features that are ...
Read more

Augmented Reality, iPhone and ArcGIS Server

Image
I am a HUGE fan of Augmented Reality , and one of my favorite applications on the iPhone is Layar . In this post, I will "walk you" through how to setup a simple ArcGIS Layar Point Of Interests (POI) layer and how to expose it through the iPhone application. In addition, I created a small Flex application that will enable you to add POIs to that feature class through a python geo-processor task. BTW - this is heavily geared to using ESRI desktop and server tools and I'm assuming that you are familiar with these tools. First, request a developer key from http://dev.layar.com/ . This might take a couple of hours to get to you. So, in the meantime, let's get started. Using ArcCatalog, create a new point feature class called 'Layar' in a geodatabase with the following fields: Title (text), Line2 (Text), Line3 (Text), Line4 (Text), Attribution (Text), Type (Integer), ImageUrl (Text:512). Import that layer into a map document using ArcMap. Save and publish the ...
Read more