Darren Dale wrote:
> I was thinking about the way the labels are formatted. Some of the
> numbers I work with are large(10^10) and small (10^-10), and the
> formatting wasnt quite right. I am running the following as a test:
>
> mport matplotlib
> from matplotlib.matlab import *
> from numarray import array
>
> a=array(range(10))*1e6+1e7
> b = array(range(10))*1e-5+1e-4
> plot(a,b)
>
> in ticker.py, in ScalarFormatter, what is the purpose of this routine?
>
> # if the value is just a fraction off an int, use the int
> if abs(x-long(x))<0.0001*d:
> if x<=10000: return '%d' % long(x + 0.5)
> else: return '%1.0e'%long(x)
>
> If commented out, the labels are formatted appropriately as
> exponentials, otherwise, the level of precision can often not be useful.
> Also, in the exponential formatting block, might this
> if d < 1e-3: fmt = '%1.3f'
> read this?:
> if d < 1e-2: fmt = '%1.3e'
>
> One final suggestion, for formatting the exponential component:
>
> m = self._zerorgx.match(s)
> if m:
> s = m.group(1)
> if m.group(2) is not None:
> ## s += m.group(2)
> s += m.group(2)[:2]+str(int(m.group(2)[2:])) ## my hack
> to make 3e003 look like 3e3. (Whats the "right way"?)
> s = s.replace('+', '')
> return s
>
> Darren
This patch has been committed, so exponential values should format correctly.
-- Paul
--
Paul Barrett, PhD Space Telescope Science Institute
Phone: 410-338-4475 ESS/Science Software Branch
FAX: 410-338-4767 Baltimore, MD 21218
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