Robert Bradshaw wrote :
On Sun, Jan 30, 2011 at 2:55 AM, Loďc <xl...@free.fr> wrote:
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 ....
I might go so far to call it a bug...
The others platonic solids have the same default.
It seems that the bug is in prep function
.../lib/python2.6/site-packages/sage/plot/plot3d/platonic.py about lines
70/401
First translate, then multiply all the coordinates
def prep(G, center, size, kwds):
if center != (0,0,0):
G = G.translate(center)
if size != 1:
G = G.scale(size)
G._set_extra_kwds(kwds)
return G
is != from
First multiply the length from the origin, then translate.
I propose :
def prep(G, center, size, kwds):
if size != 1: # exchange the 2 tests.
G = G.scale(size)
if center != (0,0,0):
G = G.translate(center)
G._set_extra_kwds(kwds)
return G
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