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ECW / Raster Layers

Topics: General Topics
Oct 3, 2006 at 7:27 AM
Hi everyone,

I am developing a web based GIS map.

I have a theoretical question with the usage of raster layers like ECW / JP2.

If the raster layer I use for my map is of the size 2MB then is it necesary that every client accessing the map will have to download the complete 2MB file to view it or will they be able to view their points of interest and sections of the map without downloading the whole file?

Please do reply.

Oct 3, 2006 at 10:33 PM

If i understand you right, you don't need to take
care of the size of your ecw. You store in a central place(web server)
and only the requested part(BoundingBox) will be shown.
It isn't downloaded to each client.

I hope this helps!