Re: [Matplotlib-users] Label baseline not aligned

[Jae-Joon L. <lee...@gm...>]

Hi Jochen,

Yes. I also can see some misalignment. I personally think that it is
very hard to get a perfect baseline alignment if you have usetex=True.
And as far as I know, if you have something like $\frac{1}{2}$ in your
string, then the baseline is not well respected.

Anyhow, The current misalignment we see seems mostly due to being
"top"-alignment. And I don't think the current matplotlib has an easy
way to adjust the alignment. The attached is a custom Axes class you
may use to get baseline-aligned xticklabels. If I use this class,
their baselines seems to align well as far as I can see. An example to
use this axes class is included in the file, and for your script, you
may add following lines before your plot() command.

from BaselineAlignedXticklabelsAxes import Subplot

ax = Subplot(h_f1, 1, 1, 1)
h_f1.add_subplot(ax)

I hope this solves your problem, but if not, I'm afraid there is
nothing I can help.

Regards,

-JJ



On Tue, Aug 19, 2008 at 1:22 PM, Jochen Schaab
<sc...@fs...> wrote:
> Hi,
> your fix solves my problem mostly.
>
> Attached is my pdf output, now created with the fixed pdf-backend. The fix
> works, however the label "Heavy" is still a tiny little bit misaligned (you
> need to zoom in to see the misalignment). All other labels seem to share a
> common baseline now. Can you reproduce that with the script I posted
> earlier?
>
> If xticklabels are "top"-aligned by default, is there an option to make them
> "baseline"-aligned?
>
> Thanks for your help.
>
> Regards
> Jochen
>
>
> Am 19.08.2008 um 18:44 schrieb Jae-Joon Lee:
>
>> Hi,
>>
>> As far as I know, xticklabels in matplotlib are "top"-aligned, so you
>> may see misaligned baseline sometimes. Still, the problem you reported
>> seems to be a bug in the pdf-backend. I posted a simple bug fix of the
>> pdf backend
>>
>> http://article.gmane.org/gmane.comp.python.matplotlib.general/14041
>>
>> and I guess this will also solve your problem. Although this fix is
>> not yet picked up by matplotlib developers, can you apply it by
>> yourself and see how it works?
>>
>> Regards,
>>
>> -JJ
>>
>>
>>
>>
>>
>> On Wed, Aug 13, 2008 at 3:56 AM, Jochen Schaab
>> <sc...@fs...> wrote:
>>>
>>> Hello
>>>
>>> I have a problem with manually set plot labels.
>>> The baseline of the labels is not aligned when using the PDF output. It
>>> works fine for PS or PNG.
>>> Attached is a script which demonstrates my problem.
>>>
>>> Running
>>> python test_baseline.py -dPDF
>>> gives me a corrupted baseline for the x-labels.
>>>
>>> I am using
>>> py25-matplotlib @0.98.3_0+tkinter
>>> installed using MacPorts.
>>> The config file matplotlibrc is unchanged.
>>>
>>> Thanks
>>> Jochen
>>>
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>
>
> —
> Dipl.-Ing. Jochen Schaab
>
> Technische Universität Darmstadt
> Institute of Flight Systems and Automatic Control
> Petersenstraße 30, 64287 Darmstadt, Germany
>
> Phone:  +49 (0) 6151 16-2290
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> E-Mail:  sc...@fs...
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>