Folks,
I need to create a new NITF image and set some RPC parameters I grabbed
from another NITF file. According to the online documentation
(http://www.gdal.org/frmt_nitf.html):
"Most file header, imagery header metadata and security fields can be
set with appropriate *creation options* (although they are reported as
metadata item, but must not be set as metadata)."
So I did the following:
1 char **create_options = NULL;
2 GDALDataset* ds = (GDALDataset*) GDALOpen( existing_nitf_file,
GA_ReadOnly );
3 create_options = CSLSetNameValue( create_options, "RPC_LINE_OFF",
ds->GetMetadataItem( "LINE_OFF", "RPC" ) );
4 GDALDriver *driver = GetGDALDriverManager()->GetDriverByName("NITF");
5 GDALDataset* out_ds= driver->Create( new_nitf_file, width, height,
bandCount(), GDT_UInt16, create_options );
During execution, I am getting the following warning message:
Warning 6: Driver NITF does not support RPC_LINE_OFF creation option
I also tried using "LINE_OFF" in line 2 as the metadata key and still
getting the same warning.
When I processed the newly created nitf file, calling
GetMetadataItem("RPC_LINE_OFF",NULL) or GetMedataItem("LINE_OFF", "RPC")
returns NULL. So the metadata was not set.
Did I misunderstood the documentation above that talks about setting
imagery header metadata via create options?
I use GDAL v.1.6.3.
Thanks
Ozy
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