I've been working on a weather application called AWeather[1], which needs to display maps of the earth. I haven't been able to find anything suitable so I've started work on a new virtual globe library using GTK+ and OpenGL. It works similar to something like Google Earth or NASA World Wind, except it's designed as a library instead of an application so it can (theoretically) be used in something other than AWeather. So far I've been using Blue Marble NG[2] and SRTM 30 Plus[3] data for textures and elevations because they're free and easy to access, but there are higher resolution datasets as well. The code is currently available in the AWeather git repository[4] and from gitweb[5]. If anyone's interested in helping out or using the library, I'll split it out into a separate repository. It's still a bit slow and buggy but I think it should compile for most people. There's a demo program of just the virtual globe under src/gis/gis_test.c Here's a couple screenshots of how it looks: http://andy753421.ath.cx/linked/world6.png http://andy753421.ath.cx/linked/world5.png [1] http://lug.rose-hulman.edu/wiki/AWeather [2] http://earthobservatory.nasa.gov/Features/BlueMarble/ [3] http://topex.ucsd.edu/WWW_html/srtm30_plus.html [4] git clone git://lug.rose-hulman.edu/proj/aweather [5] http://lug.rose-hulman.edu/git/?p=proj/aweather;f=src/gis;a=tree
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