Display a DTM with a specific colormap

[xavierlhomme]

Hi

  I want to display a DTED/STRM file on a client developped with ArcGIS API for Silverligth. If I design a widget/gadget which is able to modify de the colormap.
How could I display a DTED with a specific colormap ? If the DTED is publish as a map service, it not possible to send the colormap to the request. Do I need to use Image Server ? Or Is it possible to associate the colormap before the drawing ?

best regards.

[WenxueJu]

Yes you can use image service to achieve this goal. You image service will serve the original DTM values (for users who use it for analysis), and when you draw it using silverlight, you can send a raster function to ask for rendering (on demand, per request, by client's specification), please refer to the raster function REST API below:
http://resources.arcgis.com/en/help/rest/apiref/israsterfunctions.html