Re: [Matplotlib-users] Reposition a Legend

[Armando Serrano Lombillo]

In the legend command, the location keyword accepts a tuple giving x, y in
axes coords, so I guess it will also work similarly with the figlegend
command (which I assume you are using). Also you could try using legend
(instead of figlegend) with coords out of the [0,1] range. See:

http://matplotlib.sourceforge.net/matplotlib.pylab.html#-figlegend
and
http://matplotlib.sourceforge.net/matplotlib.pylab.html#-legend

Armando.

On 7/21/07, Anthony <[EMAIL PROTECTED]> wrote:


So I've figured out how to move the graph data out from underneath my
legend using draw() methods and calculating where the axis should be
but now I'd also like the top of the legend to be at the same height
as the top of the axis.  How do I go about moving the legend once I've
created it?

This is a legend that is created on the figure, obviously. :)

Thanks,

Anthony

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[Matplotlib-users] Matplotlib phylosophy

[Zack 24]

Hi All,

Been reading this mail-list for a long time, I came to a conclusion,
that principal structure of the program is not well thought.

Look at the ton of mails where is asking how to change one or another parameter
in the given Plot. People just don't remember all functions or variables which
provide needed functionality.

It means that Matplotlib is cumbersome and not easy to overview.

>From other point of view most people use often the same plot format
they've chosen
some times ago. So they don't need to change the elements format for every Plot.

Looking at matplotlibrc file we'll see, that it has to much parameters
defined by default.
Either you keep they as is, or you'll have to change most of them to produce
Plot you want. The problem hidden here is non compatibility. You can't
send script to
another machine and produce the same plot.

Having the same matplotlibrc file for all is not possible. Cause
everyone has his own view
how it should look like.

That means, to make the script compatible you have to change all
parameters you want
within the script. It's only one working solution for now.

But, it looks ugly and makes code way too long it could be.

What is the solution of all this issues?

First, we have to understand that every Plot could be described with a
markup language,
cause it's nothing else as a vector graph.
And building of such a plot is differ from the solution of
mathematical equation.
In the last case only the result is important, but for the plot even
the part of them is the vector graph.
And every part of it could be rendered separately. Almost separately...

Understanding of this can push the development of matplotlib further.
We don't need matplotlibrc anymore, but just a template file for every plot.
It could be the base template file, where main parameters described and also
custom template where maybe some partial parameters defined, like
Legend, size of the plot, scale etc.
The matplotlib in that case should produce the plot from known
parameters leaving not known
parameters not visible. Just imaging the Plot without any graphic curve on it.
It could be processed without knowing how the curve looks like.
Rendering it and saving
into the svg file or meta svg file for example you may drastically
improve the time needed for the
rendering the finished plot with certain curve on it. Taking some
coordinates from the template
you need to calculate only the curve from the given data table.
And moreover user don't have to care about format of many elements
like  text size distance between elements, alignment etc...

Generating the similar plot can be improved. But even the keeping of
the same style
of different plot for a publication is easy possible.

>From the developing point of view using tons of function to adjust one
or another parameters from a million is not really a nice solution.
Even the object paradigm doesn't help here.

Actually what we have to do is just _to describe_ how our plot should look like.
So why to program anything if it's easier to describe?

For that such languages like json or yaml could be utilized. And the
matplotlib have to
parse the code and generate kind of template where you can put your data.

Then one can really produce 3 lines code to plot his data in any way he wants.

It will also help to integrate the matplotlib with any software which
produces vector drawings.



Please, answer what do you think about it.
Thanks for comments.

Alex

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[Matplotlib-users] -Wstrict-prototypes option should not be added

[Xavier Gnata]

Hi,

It would be great to be able to compile matplotlib without a warning :)
Unfortunately, I was not able to fix this warning performing a simple 
grep into the sources:
"cc1plus: warning: command line option "-Wstrict-prototypes" is valid 
for Ada/C/ObjC but not for C++"
It looks like this option is automagically added by the build script in 
a way I fail to understand reading quickly the sources.
Anyway, there should be a simple solution to avoid this warning (gcc 
version 4.1.3)...
Any comments?

Xavier

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9, avenue Charles André
69561 Saint Genis Laval cedex
Phone: +33 4 78 86 85 28
Fax: +33 4 78 86 83 86
E-mail: [EMAIL PROTECTED]
 


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Re: [Matplotlib-users] -Wstrict-prototypes option should not be added

[Matthieu Brucher]

Hi,

Matplotlib uses the distutils facilities to build the extension code.
Unfortunately, it is not possible to add or remove compiler flags, distutils
uses the same flags as Python when it was built. So this should probably be
sent to the Python users ML.

Matthieu

2007/7/23, Xavier Gnata <[EMAIL PROTECTED]>:


Hi,

It would be great to be able to compile matplotlib without a warning :)
Unfortunately, I was not able to fix this warning performing a simple
grep into the sources:
"cc1plus: warning: command line option "-Wstrict-prototypes" is valid
for Ada/C/ObjC but not for C++"
It looks like this option is automagically added by the build script in
a way I fail to understand reading quickly the sources.
Anyway, there should be a simple solution to avoid this warning (gcc
version 4.1.3)...
Any comments?

Xavier

--

Xavier Gnata
CRAL - Observatoire de Lyon
9, avenue Charles André
69561 Saint Genis Laval cedex
Phone: +33 4 78 86 85 28
Fax: +33 4 78 86 83 86
E-mail: [EMAIL PROTECTED]



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Re: [Matplotlib-users] -Wstrict-prototypes option should not be added

[Xavier Gnata]

Hi,

Well the point is that matplotlib in writtenin C++ and python is written 
in C.
The valid gcc options are not the same in C and in C++ so it looks 
strange (and it is a pity) if distutils do not provide the user with a 
way to modify these flag in this case.
XAvier

> Hi,
>
> Matplotlib uses the distutils facilities to build the extension code. 
> Unfortunately, it is not possible to add or remove compiler flags, 
> distutils uses the same flags as Python when it was built. So this 
> should probably be sent to the Python users ML.
>
> Matthieu
>
> 2007/7/23, Xavier Gnata <[EMAIL PROTECTED] 
> >:
>
> Hi,
>
> It would be great to be able to compile matplotlib without a
> warning :)
> Unfortunately, I was not able to fix this warning performing a simple
> grep into the sources:
> "cc1plus: warning: command line option "-Wstrict-prototypes" is valid
> for Ada/C/ObjC but not for C++"
> It looks like this option is automagically added by the build
> script in
> a way I fail to understand reading quickly the sources.
> Anyway, there should be a simple solution to avoid this warning (gcc
> version 4.1.3)...
> Any comments?
>
> Xavier
>
> --
> 
> Xavier Gnata
> CRAL - Observatoire de Lyon
> 9, avenue Charles André
> 69561 Saint Genis Laval cedex
> Phone: +33 4 78 86 85 28
> Fax: +33 4 78 86 83 86
> E-mail: [EMAIL PROTECTED] 
> 
>
>
> -
>
> This SF.net email is sponsored by: Splunk Inc.
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-- 

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CRAL - Observatoire de Lyon
9, avenue Charles André
69561 Saint Genis Laval cedex
Phone: +33 4 78 86 85 28
Fax: +33 4 78 86 83 86
E-mail: [EMAIL PROTECTED]
 


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Re: [Matplotlib-users] -Wstrict-prototypes option should not be added

[Xavier Gnata]

http://deluge-torrent.org/svn/tags/deluge-0.5.0/setup.py seems to 
provide us with a clean?? way to do that.

> Hi,
>
> Well the point is that matplotlib in writtenin C++ and python is written 
> in C.
> The valid gcc options are not the same in C and in C++ so it looks 
> strange (and it is a pity) if distutils do not provide the user with a 
> way to modify these flag in this case.
> XAvier
>
>   
>> Hi,
>>
>> Matplotlib uses the distutils facilities to build the extension code. 
>> Unfortunately, it is not possible to add or remove compiler flags, 
>> distutils uses the same flags as Python when it was built. So this 
>> should probably be sent to the Python users ML.
>>
>> Matthieu
>>
>> 2007/7/23, Xavier Gnata <[EMAIL PROTECTED] 
>> >:
>>
>> Hi,
>>
>> It would be great to be able to compile matplotlib without a
>> warning :)
>> Unfortunately, I was not able to fix this warning performing a simple
>> grep into the sources:
>> "cc1plus: warning: command line option "-Wstrict-prototypes" is valid
>> for Ada/C/ObjC but not for C++"
>> It looks like this option is automagically added by the build
>> script in
>> a way I fail to understand reading quickly the sources.
>> Anyway, there should be a simple solution to avoid this warning (gcc
>> version 4.1.3)...
>> Any comments?
>>
>> Xavier
>>
>> --
>> 
>> Xavier Gnata
>> CRAL - Observatoire de Lyon
>> 9, avenue Charles André
>> 69561 Saint Genis Laval cedex
>> Phone: +33 4 78 86 85 28
>> Fax: +33 4 78 86 83 86
>> E-mail: [EMAIL PROTECTED] 
>> 
>>
>>
>> -
>>
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>> 
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>>
>>
>> 
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>> 
>
>
>   


-- 

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CRAL - Observatoire de Lyon
9, avenue Charles André
69561 Saint Genis Laval cedex
Phone: +33 4 78 86 85 28
Fax: +33 4 78 86 83 86
E-mail: [EMAIL PROTECTED]
 


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Re: [Matplotlib-users] -Wstrict-prototypes option should not be added

[Michael Droettboom]

This is a long standing Python (distutils) bug, IMHO.

Numpy, for instance, ships with a heavily patched version of distutils 
that has a workaround for this.  Maybe now that mpl requires Numpy, 
there may be some advantage to using its distutils rather than the stock 
one.  (I say having not looked into it very deeply).

I've always got the impression that Python with C++ is sort of an 
afterthought -- I don't think C++ extensions are part of the regular 
testing procedure for distutils.

Cheers,
Mike

Matthieu Brucher wrote:
> Hi,
>
> Matplotlib uses the distutils facilities to build the extension code. 
> Unfortunately, it is not possible to add or remove compiler flags, 
> distutils uses the same flags as Python when it was built. So this 
> should probably be sent to the Python users ML.
>
> Matthieu
>
> 2007/7/23, Xavier Gnata <[EMAIL PROTECTED] 
> >:
>
> Hi,
>
> It would be great to be able to compile matplotlib without a
> warning :)
> Unfortunately, I was not able to fix this warning performing a simple
> grep into the sources:
> "cc1plus: warning: command line option "-Wstrict-prototypes" is valid
> for Ada/C/ObjC but not for C++"
> It looks like this option is automagically added by the build
> script in
> a way I fail to understand reading quickly the sources.
> Anyway, there should be a simple solution to avoid this warning (gcc
> version 4.1.3)...
> Any comments?
>
> Xavier
>
> --
> 
> Xavier Gnata
> CRAL - Observatoire de Lyon
> 9, avenue Charles André
> 69561 Saint Genis Laval cedex
> Phone: +33 4 78 86 85 28
> Fax: +33 4 78 86 83 86
> E-mail: [EMAIL PROTECTED] 
> 
>
>
> -
>
> This SF.net email is sponsored by: Splunk Inc.
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> 
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>
>
> 
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Re: [Matplotlib-users] -Wstrict-prototypes option should not be added

[Matthieu Brucher]

Yes, Python is written in C, but it is responsible for providing the good
flags so that extensions are compatible with the interpreter (there is an
option is Python steup for the C++ compiler for instance).
The exemple you give is valid for GCC, but is not for other compilers that
will crash with this kind of options. In fact, it would be far better if
Python provided out of the box a correct set of flags for g++ (and for the
other C++ compilers). I have to say that with ICC, there are far more
warning than for gcc.

Matthieu

2007/7/23, Xavier Gnata <[EMAIL PROTECTED]>:


http://deluge-torrent.org/svn/tags/deluge-0.5.0/setup.py seems to
provide us with a clean?? way to do that.

> Hi,
>
> Well the point is that matplotlib in writtenin C++ and python is written
> in C.
> The valid gcc options are not the same in C and in C++ so it looks
> strange (and it is a pity) if distutils do not provide the user with a
> way to modify these flag in this case.
> XAvier
>
>
>> Hi,
>>
>> Matplotlib uses the distutils facilities to build the extension code.
>> Unfortunately, it is not possible to add or remove compiler flags,
>> distutils uses the same flags as Python when it was built. So this
>> should probably be sent to the Python users ML.
>>
>> Matthieu
>>
>> 2007/7/23, Xavier Gnata <[EMAIL PROTECTED]
>> >:
>>
>> Hi,
>>
>> It would be great to be able to compile matplotlib without a
>> warning :)
>> Unfortunately, I was not able to fix this warning performing a
simple
>> grep into the sources:
>> "cc1plus: warning: command line option "-Wstrict-prototypes" is
valid
>> for Ada/C/ObjC but not for C++"
>> It looks like this option is automagically added by the build
>> script in
>> a way I fail to understand reading quickly the sources.
>> Anyway, there should be a simple solution to avoid this warning
(gcc
>> version 4.1.3)...
>> Any comments?
>>
>> Xavier
>>
>> --
>> 
>> Xavier Gnata
>> CRAL - Observatoire de Lyon
>> 9, avenue Charles André
>> 69561 Saint Genis Laval cedex
>> Phone: +33 4 78 86 85 28
>> Fax: +33 4 78 86 83 86
>> E-mail: [EMAIL PROTECTED] 
>> 
>>
>>
>>
-
>>
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>> 
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>>
>>
>>

>>
>>
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>>
>
>
>


--

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9, avenue Charles André
69561 Saint Genis Laval cedex
Phone: +33 4 78 86 85 28
Fax: +33 4 78 86 83 86
E-mail: [EMAIL PROTECTED]



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Re: [Matplotlib-users] -Wstrict-prototypes option should not be added

[Xavier Gnata]

If numpy provide us with a distutils version that *works* IMHO 
matplotlib should just be shipped with.
If it is overkill, it could be possible to detect the compiler version 
and to remove this option if and only if g++ is used.
It looks not so clean but cleaner than compiling this an extra option 
and waiting for the next g++ version which may move from a warning to an 
error...
Maybe we should also ask on the python ML.

 From http://docs.python.org/ext/building.html "distutils users should 
trust that distutils gets the invocations right." : ha ha ha!

Xavier

> This is a long standing Python (distutils) bug, IMHO.
>
> Numpy, for instance, ships with a heavily patched version of distutils 
> that has a workaround for this.  Maybe now that mpl requires Numpy, 
> there may be some advantage to using its distutils rather than the stock 
> one.  (I say having not looked into it very deeply).
>
> I've always got the impression that Python with C++ is sort of an 
> afterthought -- I don't think C++ extensions are part of the regular 
> testing procedure for distutils.
>
> Cheers,
> Mike
>
> Matthieu Brucher wrote:
>   
>> Hi,
>>
>> Matplotlib uses the distutils facilities to build the extension code. 
>> Unfortunately, it is not possible to add or remove compiler flags, 
>> distutils uses the same flags as Python when it was built. So this 
>> should probably be sent to the Python users ML.
>>
>> Matthieu
>>
>> 2007/7/23, Xavier Gnata <[EMAIL PROTECTED] 
>> >:
>>
>> Hi,
>>
>> It would be great to be able to compile matplotlib without a
>> warning :)
>> Unfortunately, I was not able to fix this warning performing a simple
>> grep into the sources:
>> "cc1plus: warning: command line option "-Wstrict-prototypes" is valid
>> for Ada/C/ObjC but not for C++"
>> It looks like this option is automagically added by the build
>> script in
>> a way I fail to understand reading quickly the sources.
>> Anyway, there should be a simple solution to avoid this warning (gcc
>> version 4.1.3)...
>> Any comments?
>>
>> Xavier
>>
>> --
>> 
>> Xavier Gnata
>> CRAL - Observatoire de Lyon
>> 9, avenue Charles André
>> 69561 Saint Genis Laval cedex
>> Phone: +33 4 78 86 85 28
>> Fax: +33 4 78 86 83 86
>> E-mail: [EMAIL PROTECTED] 
>> 
>>
>>
>> -
>>
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-- 

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69561 Saint Genis Laval cedex
Phone: +33 4 78 86 85 28
Fax: +33 4 78 86 83 86
E-mail: [EMAIL PROTECTED]
 


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[Matplotlib-users] Polar Half-space plot

[Chad Kidder]

I've been using matplotlib on OSX a bit and was wondering if anyone  
had code out there for a polar half-space plot?  I created one for  
matlab a while back and if there is not one for matplotlib, I would  
be happy to offer up my code as a good beginning.  It has a good bit  
of logic in it to make the plot look good.  My python is not the best  
so I wanted to see if anyone wanted to take a crack at it before I  
did a messy python hack of it.


--Chad Kidder



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[Matplotlib-users] xticklabels: how to position majors on top/north, minors on bottom/south?

[Simon Kammerer]

Hi list,

how can I position major xticklabels on top of my axes an minor 
xticklabels on bottom?

Example:

Datetimes on xaxis, minors = hours, labels as usual below xaxis, majors 
= days, labels on top of my axes:



23.07   24.07   25.07   26.07   27.07   28.07   
--
| x
| x x  x xx
|  x   x  x  x x
|x  x   x
|x
| x
|   x
|x
| x
|  x
|
|
---
   0 6 9 12 18 0 6 9 12 18 


Regards
Simon

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Re: [Matplotlib-users] Reposition a Legend

[Anthony M. Floyd]

Hi Anthony,
 
> legend to be at the same height as the top of the axis.  How 
> do I go about moving the legend once I've created it?

myLegend._loc=(x,y)
myFigure.draw()

There doesn't seem to be a .moveLegend() or equivalent method, so I
always update the semi-private ._loc and on redraw.  After the draw, the
legend appears where you want it (in 0..1 figure coords, not data
coords).

HTH,
Anthony.


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