very good, would like to learn from you to improve my show
http://kll.engineering-news.org/kllfusion01/articles.php?article_id=154#here8
of the objects/planets, also i still have problems with the orbits absolute angles
( that is why i come here to the forum in the first place
) and initial settings (1.1.2000),
the kepler elliptic orbits work.
( this one does not use a library,
views , orbits, operation ( mouse and buttons ) are coded
beginner style // difficult to read )
can you already show us some testcode?