Frank, I was looking for a GeoTIFF file that would have internal RPC tags without relying up additional support files (.RPB and .IMD). I was referring to http://geotiff.maptools.org/rpc_prop.html If the above was just a proposed extension to the GeoTIFF 1.0 specification but did not become official then no need to generate a sample. On a separate request, with regards to the following http://www.remotesensing.org/geotiff/spec/geotiff2.6.html#2.6 do you have any sample GeoTIFFs with the ModelTransformationTag GeoTIFF tag? All GeoTIFFs that I have seen have the ModelTiepointTag GeoTIFF tag. Thanks Jared
On 8/7/12 6:32 PM, "Ivan Lucena" <ivan.luc...@princeton-ma.us> wrote: > > 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.luc...@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, >> warmer...@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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