Software to calc and draw astrological charts and diagrams according to the API method. It's written in python, it uses gtk/cairo, it depend on pytz, the swiss ephemeris and public geo data compiled anew.
VIPS is an image processing suite designed for extremely large images and colorimetry. It consists of a powerful re-usable library and a graphical user interface. http://www.vips.ecs.soton.ac.uk