topic Re: Request - ImageLayer that acts as a groundOverlay in ArcGIS API for Flex Questions

Request - ImageLayer that acts as a groundOverlay

IanWatkins — Fri, 11 Nov 2011 15:24:41 GMT

Can we have a new layer type that will take an image and stretch-draw it onto a basemap?

I currently use: http://thunderheadxpler.blogspot.com/2009/02/ground-overlays-on-maps.html to draw images correctly on wkid:4326 Geographic maps just fine.

But as we move to more Web Mercator basemaps maybe it is time to have a layer that can do this correctly for web mercator base maps with geographic images without needing any backend services.

Many of my apps are used on closed networks and sometime totally deployed on a laptop, so no chance of having a backend to help.

Google had it in their Maps API for Flash and it worked well. You could take an image that was geographic and given the right parameters would draw it correctly on a web mercator map, including stretching the right amount depending on latitude throughout the image.

Cheers

Ian

Re: Request - ImageLayer that acts as a groundOverlay

stevemclaughlin — Fri, 22 Feb 2013 01:08:31 GMT

This would be awesome, I could really use this.

Re: Request - ImageLayer that acts as a groundOverlay

RobertScheitlin__GISP — Fri, 22 Feb 2013 02:29:24 GMT

Guys,

I don't understand... Are you having issues using MapImageLayer???

http://resources.arcgis.com/en/help/flex-api/apiref/index.html

The MapImageLayer class is used to add georeferenced images to the map.

Steve is this not you in this thread???

http://forums.arcgis.com/threads/76964-MapImage-not-scaling-correctly-when-multiple-mapimages-in-MapImageLayer?highlight=MapImageLayer

Re: Request - ImageLayer that acts as a groundOverlay

stevemclaughlin — Fri, 22 Feb 2013 20:44:39 GMT

Yes, that's me, the problem is that the projections are way, way off, it looks like the bitmap is just laid on top of the map without any sort of projection, ie. for a full map image, the image should stretch more at the poles, but it appears not to.
If you want an example, I can create one if you want. Thanks,
-steve