Re: I don't want an elliptic sun (part II).... (advanced 3d patch placement )

[Christian W. <cwa...@gm...>]

Andrea Viarengo wrote:
> how could I calculate parameter "angle" (that we haven't included before
> in the "move" statement), so the bottom of the patch remains parallel 
> to the "xz" plane for every value of azimuth and elevation? (i.e.: in other
> words, if I write something into the patch, I would like that the text
> remained parallel to the ground)
> 
> You are very good at trigonometry, I am sure that this will take just a moment!!

Well, I guess I could work out the math... but I think it would be 
easier to just implement the specifiable rotation order. Would that be 
acceptable to you (i.e. you would have to use your own build and/or wait 
for the next release)?

  -Christian