Flex Spatial Filter - Update

I'd like to quickly revisit the Flex Spatial Flickr post as I've made some enhancements to address some bugs and other undesireable behaviors.

The biggest improvement you'll see is in the behavior of the popup for the selected photo -- particularly for photos located near the edges of the map display. I have implemented a modified version of the InfoPopup used in the the Sample Flex Viewer. This popup is a component which 'floats' over the map to display the selected photo. I am still using an InfoSymbol to display the photo thumbnails in the graphics layer -- but wasnt happy with the mouseover behaviors here. I think this is a much better approach.

I have also made some minor adjustments to the photo search results. I am filtering out photos that are missing attributes -- like title and dimensions -- that are needed by the application. Ive also adjusted the search bounding box so that only photos within the map extent are returned.

Im much happier with this now. Onto something new next week...

Flex Spatial Flickr

Some of you may be aware that the ArcGIS API for Microsoft Silverlight/WPF is now available as a public Beta. This was released on the eve of the 2009 ESRI Developer Summit. I am among the many who unfortunately couldn't attend this year due to the current economic climate.

The Silverlight API looks rather promising - very similar in form and function to the Flex API. The ArcGIS Server Development Team provided this Spatial Flickr sample in the Code Gallery. This is a pretty slick mashup for sure.

As an advocate of Flex, this sample inspired me to develop a similar sample using the Flex API. Here is the live application as well as the application source.

This sample uses the ActionScript 3.0 API for Flickr available on Google Code. This photo search method of this API was missing needed 'geo' functionality -- so I extended it accordingly.

This sample application will retrieve Flickr photos for the current map extent. Photo tags are optional, but will be included in the search if provided. The search results are added to the map as well as provided in a data panel. The map graphics and data panel respond to mouse focus and click events. My sample doesn't have all the animation provided in the Silverlight sample -- althought it could be extended to include such. There are a few noteable quirks with the map graphics particularly those near the edges of the map window. Perhaps I shall revisit this sometime.

So, Silverlight or Flex? Time will certainly tell...