Some more examples are present in test.py (the second file in the pull
request) that can be used in the same way as examples.py.
On 11 November 2011 22:13, krastanov.ste...@gmail.com <
krastanov.ste...@gmail.com> wrote:
> Hi
>
> I'm a bit ashamed that Aaron gave better introduction than me for my own
> code :)
> Anyway, I think the documentation of Plot and the module is quite detailed
> so you can look also at help(Plot) and help(newplot).
>
> About the warnings - my idea was to structure the base backend class in
> such a way that any missing functionality in the backend subclass will just
> raise a warning but not an error (unless it is some essential
> functionality). So those will be addressed later.
>
> It can plot Integrals (due to an old addition done to lambdify thanks to
> Certik) but not Sums or anything fancy like product of Kets and Bras. To do
> those a more in depth refactoring of lambda will be needed as Certik's
> method for adding Integral to lambdify does not scale well. I think this is
> an important problem.
>
> Discontinuous functions may pose problems for the moment (none seen for
> the moment, but this is mostly by chance).
>
> About the bug in matplotlib - Aaron, you said that you will make a pull
> request for them. Should I do something or you have already taken care of
> this.
>
> I'll start writing tests for the module in the near future. Then the core
> devs should tell me if this code is going in and how.
>
> About the '3d' string - you are right it's a bad default. It's just that
> contour was written first, but I'll change this now.
>
> Finally - I was squashing and rebasing this pull request quite a bit. Now
> as it's getting more attention I'll stop doing it, so you are free to make
> changes if you are interested.
>
>
> On 11 November 2011 21:41, Aaron Meurer <asmeu...@gmail.com> wrote:
>
>> Oh, I forgot to mention that I got the following warnings:
>>
>> In [6]: p = Plot(Heaviside(x)*(1 - x)*sin(y), (x, -1, 1), (y, -pi, pi))
>>
>> In [7]: p.show()
>> /sw/lib/python2.7/site-packages/matplotlib/axes.py:4368: UserWarning:
>> No labeled objects found. Use label='...' kwarg on individual plots.
>> warnings.warn("No labeled objects found. "
>>
>> In [8]: p = Plot(Heaviside(x)*(1 - x)*sin(y), (x, -1, 1), (y, -pi, pi),
>> '3d')
>>
>> In [9]: p.show()
>>
>> /Users/aaronmeurer/Documents/python/sympy/sympy/sympy/plotting/newplot.py:901:
>> UserWarning: xscale is not supported in 3D matplotlib backend.
>> warnings.warn('xscale is not supported in 3D matplotlib backend.')
>>
>> /Users/aaronmeurer/Documents/python/sympy/sympy/sympy/plotting/newplot.py:879:
>> UserWarning: axis_center is not supported in 3D matplotlib backend.
>> warnings.warn('axis_center is not supported in 3D matplotlib backend.')
>>
>> /Users/aaronmeurer/Documents/python/sympy/sympy/sympy/plotting/newplot.py:895:
>> UserWarning: xscale is not supported in 3D matplotlib backend.
>> warnings.warn('xscale is not supported in 3D matplotlib backend.')
>>
>> Aaron Meurer
>>
>> On Fri, Nov 11, 2011 at 1:39 PM, Aaron Meurer <asmeu...@gmail.com> wrote:
>> > Hi.
>> >
>> > This looks great. For others, to run the examples, download the
>> > examples script and put in the sympy directory. Then, checkout
>> > Krastanov's branch (from the pull request). Then, run IPython, and
>> > type %run examples.py. And then type p0.show(), p1.show(), etc. (up
>> > to p4).
>> >
>> > And if you just want to test the plotting of your own functions in
>> > isympy, you have to run "from sympy.plotting.newplot import *", or
>> > else it will use the old plotting. The syntax is
>> >
>> > In [8]: p = Plot(Heaviside(x)*(1 - x)*sin(y), (x, -1, 1), (y, -pi, pi),
>> '3d')
>> >
>> > In [9]: p.show()
>> >
>> > (if you don't add '3d' in this case, it will default to a contour
>> > plot, which btw is maybe not the best default)
>> >
>> > Aaron Meurer
>> >
>> > On Fri, Nov 11, 2011 at 7:46 AM, krastanov.ste...@gmail.com
>> > <krastanov.ste...@gmail.com> wrote:
>> >> The proposal that I made in https://github.com/sympy/sympy/pull/673may or
>> >> may not became part of sympy but I like it and it's already quite
>> useful for
>> >> me.
>> >>
>> >> Here are some examples. I would like to know what do you think. The 3d
>> stuff
>> >> runs only on the latest version of matplotlib _after_ fixing a bug
>> >> (mentioned in the commit history, but those will be squashed soon).
>> >
>> > I didn't have any problems with it, though you do seem to have found a
>> > bug in matplotlib. I would submit a pull request to them fixing it.
>> >
>> > Aaron Meurer
>> >
>> >>
>> >> The script to produce them is also attached (as the api is probably
>> more
>> >> important than the visuals (the _series[index] stuff is just a
>> workaround
>> >> until getters are written)).
>> >>
>> >> Regards
>> >> Stefan
>> >>
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>> >
>>
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