Hi Nicolas, yes - a patch is always welcome! You can send it to the list, but also to me or Ede or Michael offlist, if there are problems.
No need for a ticket - but you can do this as well ;) And yes the GCP method is not supported and would probably need some deeper changes to the code (I don't think we have any code to perform a geo-referencing of raster images). We just had somebody writing to the list who had tiff data with GCPs. So, we needed to ask that person to use gdal and transform it to one of the other options. cheers, stefan Am 14.12.12 15:09, schrieb Nicolas Ribot: > Hi, > > I tried to load a geotiff image georeferenced with transformation matrix > in OJ 1.6rc1 and it failed with the message: > "Neither geotiff tags nor worldfile found. > This is not a valid geotiff file" > > As far as I understood, GeoTiff georeference information can be stored > in 3 distinct formats (http://www.gdal.org/frmt_gtiff.html): > tiepoint and pixel size > transformation matrix > GCP. > > Looking at the code in OJ trunk, I see that only one method to read the > georeference information is used, based on the > TIFFTAG_GEO_TIEPOINTS TIFF tag. > > Slighty changing the code to also include reading the > TIFFTAG_GEO_TRANS_MATRIX TIFF tag allows the tif file to be opened > successfully in OJ. > > (I don't know, though, how to deal with GCP georeference, as there can > be an arbitrary number of GCPs) > > Should I submit a ticket, send a patch ? > > Thank you and a big thank for the latest release to come ! > > Nicolas > > > ------------------------------------------------------------------------------ > LogMeIn Rescue: Anywhere, Anytime Remote support for IT. Free Trial > Remotely access PCs and mobile devices and provide instant support > Improve your efficiency, and focus on delivering more value-add services > Discover what IT Professionals Know. Rescue delivers > http://p.sf.net/sfu/logmein_12329d2d > > > > _______________________________________________ > Jump-pilot-devel mailing list > Jump-pilot-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel > ------------------------------------------------------------------------------ LogMeIn Rescue: Anywhere, Anytime Remote support for IT. Free Trial Remotely access PCs and mobile devices and provide instant support Improve your efficiency, and focus on delivering more value-add services Discover what IT Professionals Know. Rescue delivers http://p.sf.net/sfu/logmein_12329d2d _______________________________________________ Jump-pilot-devel mailing list Jump-pilot-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel
