Re: [Matplotlib-users] semilog, exponents, and eps

[John H. <jdh...@ac...>]

>>>>> "Darren" == Darren Dale <dd...@co...> writes:

    Darren> Hi, I am reporting a minor bug. I noticed that if I change
    Darren> the ticklabel size to 10, draw a semilogy plot, and save
    Darren> an eps file, that the yticklabels in the eps are badly
    Darren> formatted. The exponent runs into the base.

    Darren> from matplotlib import * rc('tick',labelsize=10) from
    Darren> pylab import *

    Darren> semilogy([1,2,3],[1e-5,1,1e5]) savefig('temp.eps')

The relevant section of code is matplotlib.text.Text._get_layout_super

        wb,hb = renderer.get_text_width_height(base, self._fontproperties, False)
        we,he = renderer.get_text_width_height(exponent, fpexp, False)

        w = wb+we

        xb, yb = self._transform.xy_tup((self._x, self._y))
        xe = xb+wb
        ye = yb+0.5*hb
        h = ye+he-yb

w,h is width and height and e,b is exponent and base -- eg, xb is the
x location of the base and wb is the width of the base.  Try adding a
pad to xe, eg

   xe = xb+1.05*wb

and see if you can find something that works well for a variety of
reasonable font sizes.  You might want to make the pad dependent on
the fontsize...

JDH