Where I work we use a number of methods for plotting map data. As for a Flex specific implementation, you might try:
http://modestmaps.com/ Yahoo's AS3 connection kit is another option, but the support on that front has been spotty at best. ESRI has a Flex API coming out soon as well: http://weblog.cahlan.com/2006/09/yahoo-maps-in-flex-2-as3.html http://www.esri.com/news/releases/07_3qtr/aws-flex-api-beta.html If you're just doing USA plotting, someone rolled their own map component: http://www.keaura.com/blog/ For projection calculations (i.e. a roll your own solution), you might want to check out the Proj4 library: http://proj.maptools.org/ If you do roll your own, you will need to know the bounds of your map both in pixels and in lat, lon. Then you'll want to be able to convert from x,y to lat, lon and vice versa. Proj4 or a quick Google for the projection might help, or just use Modest Maps with Zoomify and there's a tool to get the projection numbers already available. I hope that helps, -- William --- In [email protected], "Giles Roadnight" <[EMAIL PROTECTED]> wrote: > > Hi All > > I'm considering doing a project that involves displaying latitude / > longitude data on a map. > For example: displaying different colors on each lat / long square > with a popup showing number of pelicans per bananas squared in that > location. > > Does anyone have any experience in this sort of app? COuld I use > graphics.draw rectangle for this (potentially lots of data) or should > I directly play with bitmap data? > > How do I match up data I am receiving with lat / long to the map that > I'll be drawing these squares onto? > > Are there any examples or anything out there like this? > > Just looking for some ideas about the best way of doing this at the > moment. > > Thanks > > Giles. >
