Raster zoom problem with ERDAS Imagine Files

[Paul Moen]

Frank,

The problem was in our build.  I was using external libraries for the images
instead of the built in libraries.  I still haven¹t gotten everything to
work, but I do not believe it is a problem with GDAL.

The version running at http://mapservice.swc.state.nd.us/indexmap.phtml has
GDAL 1.2.6 and the raster images work fine at all scales for some counties
and not for others.  We are looking into the problem assuming it is due to
the clipping process, since most the counties we have clipped to the county
boundaries do not function properly.  For instance, McKenzie, Mountrail,
Ramsey, and Benson counties do not display correctly at all scales, but
Billings and Burleigh look as they should.  All those counties have been
clipped with ERDAS.  Every county that has not been clipped display as I
would expect, no matter the size.


> 
> Paul, 
> 
> I'm afraid I don't know what is going wrong.   If you are handy with a
> debugger, then you could run shp2img, break it when it hangs, and
> get a traceback with the "where" command.
> 
> Alternatively, if you are in a position to provide "ssh" access to your
> machine, I could do some investigation.
> 
> Best regards, 
> 
Thank you for your time and for your software,

Paul T. Moen
pmoen at state.nd.us
ND State Water Commission

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