Well I used gdal_translate to make a VRT directly from the original TIF and
it revealed the answer; Metadata!
<Metadata domain="RPC">
<MDI key="HEIGHT_OFF">226</MDI>
<MDI key="HEIGHT_SCALE">501</MDI>
...and so on...
</Metadata>
On Fri, Dec 7, 2018 at 12:40 PM Patrick Young <
[email protected]> wrote:
> Hi all,
>
> I'm got some code that builds a VRT out of a bunch of image tiles. These
> tiles were originally chipped out of a DigitalGlobe 1B GeoTIFF that came
> with extra metadata, specifically gdalinfo reports that its finding a .IMD,
> .RPB, and .XML files along with the TIF itself, and gives me a nice summary
> of the RPCs among other things.
>
> My goal is to get the same behavior (e.g. recognize the RPCs) when I run
> gdalinfo on the VRT. Is there a field to add to the xml that composes the
> VRT to get the driver to notice this? My VRT is named with the same prefix
> as all the metadata files, just like the original GeoTIFF, so it has me
> thinking that the GeoTIFF driver is special in looking for these sidecars.
> If I translate the VRT to a GeoTIFF with the same prefix, everything looks
> good.
>
> Thanks for any insights!
> Patrick
>
_______________________________________________
gdal-dev mailing list
[email protected]
https://lists.osgeo.org/mailman/listinfo/gdal-dev
