I'm really excited to see this come together. Having a matplotlib backend
will be very helpful for me.
Keep up the good work!
On Fri, Nov 11, 2011 at 3:15 PM, krastanov.ste...@gmail.com <
krastanov.ste...@gmail.com> wrote:
> 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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>>
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