[Gdal-dev] Re: GDAL SRTM hgt code

Frank Warmerdam warmerdam at pobox.com
Thu Nov 15 15:24:41 EST 2007


Rick Niles wrote:
> Since SRTM hgt-files is the best public available terrain data around 
> (that I know of..), it seems like it's worth it to have a specific 
> front-end to handle it directly via GDALOpen().  I can see why some 
> would argue that's just a special case of a raw 2-byte file, but I don't 
> think it would be ugly to have a specific filter to handle this 
> extremely popular data.  There's 3-second and 1-second SRTM data and I'm 
> not sure you can auto-detect which is which.

Rick,

An SRTM driver was implemented in "trunk" and will be in the 1.5.0 release.
I haven't tried it yet, but it should be built into the FWTools builds
(or just build from any trunk snapshot).  Some info at:

   http://www.gdal.org/frmt_various.html#SRTMHGT

It looks like it was implemented by Michael Mazzella and Even Rouault so
kudos and bug reports to them. :-)

Best regards,
-- 
---------------------------------------+--------------------------------------
I set the clouds in motion - turn up   | Frank Warmerdam, warmerdam at pobox.com
light and sound - activate the windows | http://pobox.com/~warmerdam
and watch the world go round - Rush    | President OSGeo, http://osgeo.org




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