[Gdal-dev] writing RPC data in NITF format?

[Sarah Mulholland]

I have a NITF image and RPC data in a separate 
file.  I need to embed the RPC data in the NITF 
file.  I see that there's a GDALExtractRPCInfo 
function.  Would it be straightforward to create a 
GDALInsertRPCInfo so that I can perform the 
following steps:

1. populate a GDALRPCInfo object with the RPC values
2. read the NITF image into a GDAL data set
3. insert the RPC information
4. write the result to a NITF file

Is this straightforward to do?

Thanks in advance,

Sarah