Hello. I'm a student/researcher of traditional Indian astronomy where
the longitudes of bodies are given w.r.t. a zero point diametrically
opposite Spica i.e. so that the longitude of Spica is fixed at 180°.
I would like to use Stellarium to illustrate the movement of the
planets with this grid of
Hi!
Start with src/modules/GridLinesMgr.(hpp|cpp). When you understand how
it works, it should be moderately easy to make e.g. a variant of
ecliptic of date starting at Spica. You should however not touch
precession code, unless you need to implement a particular Indian model.
But then you ne