fonts for log axis?

the y-axis has a different font (italic) than the x-axis

    > (sans-serif). Looking at the code, this is because it is
    > set as math text ($ ...$). Is there a trick to ensure a
    > sans-serif font for the y-axis? (I would like to use
    > matplotlib plots in a presentation and sans-serif fonts are
    > better suited for this.)

What version of mpl are you using? I thought in a previous post you
said you were using cvs (could be mistaken). I wrote an extension to
text.py to special case exponential formatting specifically to solve
the mismatched fonts problem. So make sure you are using a current
problem of matplotlib and if you still have the problem check your
input against the regex in matplotlib.text.Text

    # special case superscripting to speedup logplots
    _rgxsuper = re.compile('\$([\-+0-9]+)\^\{(-?[0-9]+)\}\$')

If you can fix up this expression to include your case that would be
most helpful.

Thanks,
JDH

Hi John,

    > the y-axis has a different font (italic) than the x-axis
    > (sans-serif). Looking at the code, this is because it is
    > set as math text ($ ...$). Is there a trick to ensure a
    > sans-serif font for the y-axis? (I would like to use
    > matplotlib plots in a presentation and sans-serif fonts are
    > better suited for this.)

What version of mpl are you using? I thought in a previous post you
said you were using cvs (could be mistaken).

You remember the version I am running better than I do ;-).
In [1]: import matplotlib
In [2]: matplotlib.__version__
Out[2]: '0.84.cvs.2'

I wrote an extension to
text.py to special case exponential formatting specifically to solve
the mismatched fonts problem. So make sure you are using a current
problem of matplotlib and if you still have the problem check your
input against the regex in matplotlib.text.Text

    # special case superscripting to speedup logplots
    _rgxsuper = re.compile('\$([\-+0-9]+)\^\{(-?[0-9]+)\}\$')

If you can fix up this expression to include your case that would be
most helpful.

I think the expression is alright:
I looked at matplotlib/text.py - class Text. It seems that
for this example the routine does not pass by the
first use of self._rgxsuper:

  print "Arriving here1"
        if angle==0:
      print "Arriving here2"
            if ismath!='TeX': # <==== change to "==" here?
    print "Arriving here3"
     m = None
            else:
                m = self._rgxsuper.match(self._text)
    print "passing by here..."
      print "Arriving here4"
            if m is not None and not rcParams['text.usetex']:
    print "Arriving here5"
                bbox, info = self._get_layout_super(self._renderer, m)
                base, xt, yt = info[0]
                renderer.draw_text(gc, xt, yt, base,
                                   self._fontproperties, angle,
                                   ismath=False)

                exponent, xt, yt, fp = info[1]
                renderer.draw_text(gc, xt, yt, exponent,
                                   fp, angle,
                                   ismath=False)
                return

However, changing ismath!='TeX' to ismath=='TeX'
seems to work (for this particular example): I.e. I get
the non-math fonts on the vertical axis.
Can you confirm that this change is the correct solution?

Best,

Arnd

P.S.: BTW: splattering the prints around seems like poor-mans
debugging :wink: Are there better solutions available?

···

On Sat, 3 Sep 2005, John Hunter wrote: