This has bothered me too and I think it is a bug. I have made it trac ticket #4604. It shouldn't be too hard to fix.
As a workaround I am currently doing something like: g = point3d((0,0,0),opacity = 0) which gives you an invisible point at the origin. -M. Hampton On Nov 24, 9:47 am, Chris Fronk <[EMAIL PROTECTED]> wrote: > I'm not sure if this is a bug or just something I'm misunderstanding, > but for 2D graphics I can write code like this. > > g = Graphics() > g += line( [ [-1,-1], [1,1] ] ) > g.show() > > But in 3D if I do either > > g = Graphics() > g += sphere( (1,1,1), 2 ) > g.show() > > or > > g = sage.plot.plot3d.base.Graphics3dGroup() > g += sphere( (1,1,1), 2 ) > g.show() > > I get the error: ValueError: min() arg is an empty sequence > > Is there something I'm missing on how to create a graphics object and > add 3D graphics to it like the way it's done in 2D? --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
