Many thanks for your answers!!! Now I am developing a library that handles TIFF and geoTIFF, but I have noted that I need to include RPCCoefficientTag to the TIFF file. Searching on the internet I have found that this tag is not suported by geoTIFF spec 1.0, it is only suported by gdal. Is this true?
Is it posible to include this tag in a TIFF (not geoTIFF) file not using gdal library? Or I have to use geotiff? Best regards, Jorge 2011/5/17 Frank Warmerdam <warmer...@pobox.com> > On 11-05-17 07:54 AM, Jorge Martin wrote: > >> Hello Frank, >> >> >> I am reading libtiff manual and it is possible to write different IFD >> (directories, I do not know the correct word) in the same tiff file using >> *TIFFWriteDirectory *function. Is it possible to use it in gdal library? >> > > > Jorge, > > While in theory we could extend the GDAL library to write multi-image > TIFF files - at this time we do not have support for doing this. > > Best regards, > > 2011/5/17 Jorge Martin <jorma...@gmail.com <mailto:jorma...@gmail.com>> >> >> >> Hello Frank, >> >> TIFF 6.0 specifications has a sub-section in page 16 which is >> called "Multiple Image per TIFF file" and there is only a description >> of >> this issue but anything about its implementation: >> >> "There may be more than one IFD in a TIFF file. Each IFD defines a >> subfile. >> One potential use of subfiles is to describe related images, such as >> the >> pages of a facsimile transmission. A Baseline TIFF reader is not >> required >> to read any IFDs beyond the first one." >> >> Is it possible to implement it? >> > > > > -- > > ---------------------------------------+-------------------------------------- > I set the clouds in motion - turn up | Frank Warmerdam, > warmer...@pobox.com > light and sound - activate the windows | http://pobox.com/~warmerdam > and watch the world go round - Rush | Geospatial Programmer for Rent > >
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