[pstricks] x- and yunit behavior in 3D pictures

[Herbert Voss]

Am 05.01.2016 um 13:50 schrieb Leon Free:

> But I am not sure this is the mapping that operates on the rendering
> of 3D vectors after changing the yunit value (although that may be
> true for (x,y) vectors). For instance, I get the same (distorted)
> result as in my initial example when using a plane that goes through
> (1,1,0) with normal (1,2,1)..

xunit and yunit are only valid _after_ the 3D->2D transformation.

Herbert