[Gdal-dev] Data format

[Norman Vine]

Clay, Bruce writes:
> 
> I used the code from the tutorial to create a small app to parse data
> from a DEM file.  After a few retries I got Microsoft to accept the GDAL
> lib and give me results from the data file.  When I use RasterIO I get
> back a buffer full of floats.  How do I interpret them?  Is that based
> on the data file read or is that a standard for all vector data?
> 
> The data file I opened is a DEM file from the GTOPO30 data set.

maybe this will help
http://edcdaac.usgs.gov/gtopo30/README.asp

Norman