Re: [Matplotlib-users] trailing space in text string stripped, making it impossible to right-pad my text

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

On Wed, Sep 30, 2009 at 4:38 PM, Christopher Barrington-Leigh
<cpb...@gm...> wrote:
>
>
> Jae-Joon Lee wrote:
>>
>> This works if you use recent version of matplotlib with preview mode
>> on. Without the preview mode (or other similar ways to report the
>> dimension of the text from TeX side), I don't think this can be done.
>>
>>
>
> Ok, thanks. I hope I am understanding. Would you be able to point me to a
> link to info on what you mean by "preview mode"?
> By recent version you mean something in the svn, I guess?
>
>

0.99.0 and later should work.

text.usetex : True
text.latex.preview : True

Include these in your rc file. While the preview.sty is installed in
most tex distribution, you may need to install it if not.

>
>
>> This does not. First of all, "~" and "\mbox" are not supported if
>> usetex=False and I guess never will be. On the other hand,
>>  as far as I can see, the whitespace stripping is not done in mpl
>> side. And I have a feeling that it may be the freetype library. mpl
>> uses  FT_Glyph_Get_CBox to calculate the extents of the text and I
>> think this seems to fail when there is a trailing spaces. This is
>> beyond me I hope other developers have better idea.
>>
>>
>
> Thanks, I too hope some other developers chime in!
>
>
>
>> So, Christopher,
>> I guess your best chance is to upgrade and use preview mode, or use
>> annotate function.
>>
>
> I am not clear how annotate helps. If I am willing to specify x,y locations,
> I can do that with text() as well, no?. It's still a matter of calculating
> how big a piece of whitespace should end up, roughly.

annotate let you specify offset from (x, y).

annotate("test", (1., 0.5), (-20, 0), xycoords='data',
         textcoords='offset points', ha="right")

Check the documentation.

Regards,

-JJ


>
> Thanks, JJ!
>
>
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>
>
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