[Kstars-devel] Predicting conjunctions

[James Bowlin]

On Thu March 13 2008, Jan Kotek wrote:
> Increase X by STEP. Calculate increment of distance from last X. If
> increment changed sign(+-) from last time, it means you passed
> minimum/maximum. So reverse STEP (STEP = -0.5* STEP) and continue.
>
> Repeat until STEP is smaller then exactness you want.

There is a C implementation in SkyMap::ClipLine() starting on line 61
of skymapdraw.cpp.  It finds where lines cross the celestial horizon.


-- 
Peace, James