Adrian Custer wrote: > Hey, > > We have *no* idea what GCTP might stand for so if you could elaborate we > might be able to answer your question. Is there an authority? Does it > have a database of codes of some kind? Is there a place where it defines > its codes or publishes its projections?
Adrian, GCTP is a FORTRAN (now C) projection library from the USGS. It includes a set of numeric codes for projection methods and a particular way of packaging the projection parameters in a 15-entry double array. There are some potentially useful definitions and translation functions implementing in GDAL: http://svn.osgeo.org/gdal/trunk/gdal/ogr/ogr_srs_usgs.cpp Some USGS and NASA file formats, like HDF EOS products, encode coordinate system information in a way tightly related to GCTP which is why GDAL has translation logic. > On Wed, 2009-02-04 at 07:04 -0800, Agossa wrote: >> Hello, >> How could I use a GCTP Projection code in Geotools? That is, I would like to >> decode a GCTP code into geotools CoordinateReferenceSystem; I would guess that the answer to this will be that Geotools has no specific for GCTP (aka USGS) projection definitions and that the application code will need to manage the translation into Geotools srs definitions itself though I can't say this authoritatively. Best regards, -- ---------------------------------------+-------------------------------------- I set the clouds in motion - turn up | Frank Warmerdam, [email protected] light and sound - activate the windows | http://pobox.com/~warmerdam and watch the world go round - Rush | Geospatial Programmer for Rent ------------------------------------------------------------------------------ Create and Deploy Rich Internet Apps outside the browser with Adobe(R)AIR(TM) software. With Adobe AIR, Ajax developers can use existing skills and code to build responsive, highly engaging applications that combine the power of local resources and data with the reach of the web. Download the Adobe AIR SDK and Ajax docs to start building applications today-http://p.sf.net/sfu/adobe-com _______________________________________________ Geotools-gt2-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users
