[Gdal-dev] Re: GDAL SRTM hgt code

Markus Neteler neteler at fbk.eu
Fri Nov 16 12:47:01 EST 2007


On Thu, Nov 15, 2007 at 09:24:41PM +0100, Frank Warmerdam wrote:
> 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. :-)

I had tried it some (short) time ago with European SRTM data
and compared to GRASS SRTM import: identical. So I think
that it works well.

Markus



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