Sequence of rotation

Processing Coding Questions
7

thanks @jeremydouglass,

  • now understand that rotateX rotateY rotateZ ( without translate … inbetween ) should work in any sequence

  • also that i must use
    push rotate draw pop
    instead
    rotate(-x) draw rotate(+x)

  • thanks for the example, nice

  • code, i have my project what is about to test processing 3D view: code and BLOG
    where the SOLARsystem is just one TAB of, for that i have a add BLOG and 2 add test codes
    Kepler orbit and ellipsis_rotation

  • what looks wrong is if i enable
    rotateX ( file:sketch_3D_view_v153 / TAB SOL / line 384 )
    the planets not form a dish anymore,
    as i say i must missunderstand the WIKI planet ellipsis angles somehow.
    add i might have mistake in x or -x ( or rotate(PI)) if the angle definitions are for Perhelion while my x axis is the for the LONG one Aphelion / this i can not see in the WIKI picture about the angles.
    (NOTE this is all about the ellipsis position, NOT about the planet position on the ellipsis, that part (Kepler) works already )