I'm using the csharp swig wrappers to get information from various types
of imagery. I'm relying on the data to be stored in the *.aux.xml file
for later retrieval.
For NITF imagery, this seems to work fine. For GeoTiffs however, none
of the file's metadata is stored when I call FlushCache() on the
dataset. The information is there when I iterate over the various
metadata domains, but it's not saved. Another oddity is that histogram
data *is* written, but no stats or other information.
Am I missing something? (a code snippet is below)
Thanks,
Mike
private void ProcessMetadataDomain(Dataset ds, string domain)
{
string[] metadata = ds.GetMetadata(domain);
if ((metadata != null) && (metadata.Length > 0))
{
ds.FlushCache(); // This isn't [always] writing the contents to the
aux.xml...?
WriteLine(" " + domain + " Metadata");
for (int iMeta = 0; iMeta < metadata.Length; iMeta++)
WriteLine(" " + iMeta + ": " + metadata[iMeta]);
WriteLine();
}
else
WriteLine(" No '" + domain + "' Metadata found." +
System.Environment.NewLine);
}
I see this information in my GUI, but it doesn't get saved.
Metadata
0: AREA_OR_POINT=Area
1: TIFFTAG_IMAGEDESCRIPTION="GeoEye"
2: TIFFTAG_DATETIME=2007:11:29 23:35:55
3: TIFFTAG_COPYRIGHT="(c) GeoEye"
4: TIFFTAG_XRESOLUTION=300
5: TIFFTAG_YRESOLUTION=300
6: TIFFTAG_MINSAMPLEVALUE=1
7: TIFFTAG_MAXSAMPLEVALUE=2047
8: TIFFTAG_RESOLUTIONUNIT=2 (pixels/inch)
IMAGE_STRUCTURE Metadata
0: INTERLEAVE=BAND
No 'RPC' Metadata found.
No 'SUBDATASETS' Metadata found.
No 'GEOLOCATION' Metadata found.
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