[gdal-dev] looking for GeoTIFF samples with RPC metadata

[Ivan Lucena]

Hi Frank,

The .RPB are perfect good example of RPC and GDAL reads it pretty well, 
although it is a little bit strange that gdalinfo reports the Reference 
System and GeoTransform matrix completely dissociated from the RPC but I 
think it does makes sense, since most of the applications will not 
process the RPC geometric transformation anyway.

I didn't know that Jared was looking specifically for *internal* RPC 
tags. He just said "GeoTIFF with RPC". If the GTIFF driver could write 
the RPC he could "gdal_translate" (a verb) the .TIF/.RPB to a GeoTiff 
with *internal* RPC. Would that work? By the way, does GDAL support RPC 
on any other file format as auxiliary xml?

Regards,

Ivan

On 8/7/12 7:10 PM, Frank Warmerdam wrote:
>
>
> On Tue, Aug 7, 2012 at 2:39 PM, Ivan Lucena 
> <ivan.lucena at princeton-ma.us <mailto:ivan.lucena at princeton-ma.us>> wrote:
>
>     Jared,
>
>     You can find some images with RPC from Bolder Colorado USA here:
>
>     http://www.digitalglobe.com/product-samples
>
>     "Quickbird: Ortho Ready Standard Satellite Imagery"
>
>     Be aware of the license.
>
>
> Ivan / Jared,
>
> I fetched the dataset and isolated the following file
> and it did not have RPCs internally:
>
> 05JUL04180116-P2AS-005554608080_01_P001.TIF
>
> I see there is a parallel .RPB and .IMD file which GDAL
> reads for metadata but this is *not* an example of the
> RPC coefficients within the TIFF file if that is what you
> were looking for.
>
> I'm referring to:
>
> http://geotiff.maptools.org/rpc_prop.html
>
> If that is what you need, let me know and I'll
> try to prepare an example if there isn't one
> already somewhere.  Note that to GDAL apps
> this should look the same as working with the
> quickbird image.
>
> Best regards,
> -- 
> ---------------------------------------+--------------------------------------
> I set the clouds in motion - turn up   | Frank Warmerdam, 
> warmerdam at pobox.com <mailto:warmerdam at pobox.com>
> light and sound - activate the windows | http://pobox.com/~warmerdam 
> <http://pobox.com/%7Ewarmerdam>
> and watch the world go round - Rush    | Geospatial Software Developer
>

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