Hi Fabio,
On Jan 18, 2008 11:51 AM, Fabio Tonti <[EMAIL PROTECTED]> wrote:
> Hello everyone,
>
> I've just been playing around with SymPy a bit more lately, and I found that
> the 3D-Plot implementation is really nice!!!
> Why isn't that the default plot3D-way for Sage command-line use?
I think the main reason is just that noone has implement it yet. But see below.
> I must say that I'm really looking forward to getting mayavi2 into Sage (I
> know it's already there, but more stable, better supported). Still, I have
> no experience with mayavi, and I think the symPy (pyglet) plotting
> capabilities are very good. So in my opinion that should be the default
> plot3D for command line use.
> Of course for the notebook, there's been great work around jmol, and I like,
> but it never worked for me from the command line (btw. java scares the ***
> out of me).
Speaking only for myself, I don't like java too. But I have a very
narrow minded opinion here,
I am sure others will not agree with me completely. I know it's GPL,
but that's already
more than a year (isn't it?), but it still isn't in Debian main, for
some legal or technical problems.
It is in non-free, so I can still install it with one command (apt-get
install sun-java5-plugin) and it
works out of the box in all browsers, but I am very picky, I don't
want to depend on something
that isn't in main (that includes Sage too for the moment). I hope
Sage will get into Debian
eventually, and java hopefully too. But I don't want to wait 30 years
for that. :)
So that's why I don't like java, but one shoud use the best tool to do
the job. So we want 3D graphing
in the browser that just works and I don't know any better solution
than the one in Sage.
But as to commandline, I think pyglet is a better solution than jmol,
because pyglet can be made
working for almost everyone (unlike java). But I remember that some
people tried that on this list
and had some problems too. It does work for me though, even in the old
Sage 2.8.13. Try this:
$ ./sage
----------------------------------------------------------------------
| SAGE Version 2.8.13, Release Date: 2007-11-21 |
| Type notebook() for the GUI, and license() for information. |
----------------------------------------------------------------------
sage: from sympy import Plot, symbols
sage: x, y = symbols("xy")
sage: Plot(x*y)
[0]: x*y, 'mode=cartesian'
sage:
Exiting SAGE (CPU time 0m1.18s, Wall time 0m16.36s).
And it plots a graph in pyglet, through sympy.
So I think noone will be against accepting a patch, that adds an
optional switch to the plot3d Sage command to use pyglet, if jmol is
not available.
Ondrej
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