[Geotiff] Converting BMP+LatLon to GeoTiff

[Frank Warmerdam]

Pete Flugstad wrote:
> I have a several hundred bmp files with associated .wif files, which
> contain the Lat/Lon
> information for the BMP.  These .wif files are form:
> 
>     token World_Information
>        Corner1     : -90.0 -180.0 0.0
>        Corner2     : -45.0 -180.0 0.0
>        Corner3     : -45.0 -135.0 0.0
>        Corner4     : -90.0 -135.0 0.0
>        Transparent :  0  0  0  255
>        Name        : "World"
>     end
> 
> I can't seem to find much info this format anywhere.

Pete,

I've never seen this format before either.

> I've tried to use gdal_translate -a_ullr to turn these bmp's into
> geotiffs, but I'm thinking
> that that isn't doing what I expect.   My map program (openmap) won't
> load them, and
> when I run listgeo on them I don't see any tie points.
> 
> I'm still learning my way around things - can anyone point out the
> likely very obvious
> thing I'm messing up?  I'd like to avoid having to manually georectify
> all of them.

You aren't specific about what you actually did and what you got from
listgeo.

I'd think something like the following would be appropriate for the
above case.

   gdal_translate abc.bmp -a_ullr -180 -90 -135 -45 -a_srs WGS84 abc.tif

Best regards,
-- 
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I set the clouds in motion - turn up   | Frank Warmerdam, warmerdam at pobox.com
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