Bound box for parametric 3D plots?
I am trying to plot a parametric surface but only in a certain box in 3D space. Namely, I would like to get JMol to plot this:
var('s t') p = [s^2, s^2+t^2, s^2+s*t+s+t]; q = s^2+t^2+s-t+1 parametric_plot3d((p/q,p/q,p/q),(s,-5,5),(t,-5,5), points=[100,100])
but restricted to [0,1]x[0,1]x[0,1] (for example). I see that implicit plots work exactly like that, but the singular part of this surface looks quite ugly: http://imgur.com/5IxilIz.
I would be fine with tachyon too, but I haven't been able to figure out how to rotate the camera (I basically want to cut out a chunk of that surface to see a section).