Hi Hamish ! I just submitted to add-ons an adaptation of Meloch craters to meteorite or meteorite to crater model. It would be soooo good if I could have support for Mars or Moon. Yes, I have used the 0-360 support with GCM data before (most welcome support at that time).
Is there something I can do to facilitate the finalization of that port, i will look into trac for info. Cheers, Yann On 1 May 2013 03:06, Hamish <[email protected]> wrote: > Yann wrote: >> I would like to map the Milky Way stars and run some >> analysis on it. >> >> Is there support for Milky Way and Galaxy coordinate systems >> in general in GRASS? > > Not specifically, but depending on your reference frame the > simple XY and lat/lon+spheroid locations can set up arbitrary > Cartesian or polar coordinate systems as you like. > > > fwiw-- > Some time ago I had a look at importing a star catalog as an > example of working with sparse 3D points in GRASS, but that > was earth-centric so a lat/lon location did ok for azimuth and > altitude. A big problem there at the time was finding a catalog > with a truly FOSS-friendly license. > > Note GRASS 7 and its wxGUI location wizard have ellipsoid tables > and support for the planetary bodies in our solar system. I need > help with the final 5% of the python coding to finish that off > in the loc'n wizard (see trac). Longitude represented as 0-360 > has had support in the GRASS raster engine for a number of years. > > see also http://grasswiki.osgeo.org/wiki/Planetary_mapping > > > Hamish -- Yann Chemin Researcher@IWMI Skype/FB: yann.chemin _______________________________________________ grass-dev mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-dev
