Thanks you very much for your reply You're right, size affects the center too. Not very intuituive but now, I know it.
I think this behaviour is quite surprising. For example, with sphere, size doesn't affect center .... On 29 jan, 20:04, Francois Maltey <fmal...@nerim.fr> wrote: > Hello, > > > I was making some tries with 3D. > > I don't succeed to make cube correctly: > > Here is my code: > > > c=cube((0,0,0),size=2,opacity=0.1,color='red') > > c+=point((2/3,2/3,0),color='green',size=10) > > c+=cube(center=(2/3,2/3,0),size=1/3,opacity=0.8) > > show(c) > > > I draw a point with coord (2/3,2/3,0) > > Then I draw a cube centered on this point with size 1/3 > > > When I display with JMol, the point is outside the cube... > > > Is it a bug ? Perhaps I've missed something with the instruction > > cube() > > It seems that sage multiplies by size all the coordinates of the cube, > even the center, not only the length. > > Try size=1, size=10 and size=0.1. The center of the cube changes. > > F. -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
