Hi MAtthias,
yes, I can confirm this behavior. This is what I get as well. But the
solution is easy: just get rid of th line
cb.ax.yaxis.set_major_formatter(formatter)
We don't need it anymore and it messes it all up. Without it, it should
work.
Greetings,
Thorsten
2008/1/11, Matthias Michler <[EMAIL PROTECTED]>:
>
> Hi Thorsten,
>
> On Wednesday 09 January 2008 15:35, Thorsten Kranz wrote:
> > Hi list, Hi Matthias,
> >
> > I found another way to deal with this problem. when defining the
> colorbar,
> > one can give an additional kwarg "format", so by defining the kwarg
> > "format=formatter", we solved the problem.
>
> I'm happy that your problem disappeared, but I still have a question. On
> my
> system the problem still exist, if I use "format=formatter" in colorbar
> and
> after that use
> cb.ax.yaxis.set_major_formatter(formatter)
> in the example-code of my last email.
> Can anybody confirm this behaviour (data range 0.0 ... 0.54 -> 0.0 ...
> 0.95)?
> And if so: Is this the expected behaviour?
>
> best regards,
> Matthias
>
>
> > Anyway, I think an option as Matthias implemented would be very handy
> for
> > all those users like us here in Germany who might want to have the
> numbers
> > formatted with commata.
> >
> > Greetings,
> > Thorsten
> >
> > 2008/1/9, Matthias Michler <[EMAIL PROTECTED]>:
> > > Hello list,
> > > Hello Thorsten,
> > >
> > > On Wednesday 09 January 2008 11:38, Thorsten Kranz wrote:
> > > > I have a question concerning reformatting of axis-ticks via the
> > > > FuncFormatter-class. In german, it's common to use a comma as
> separator
> > >
> > > for
> > >
> > > > decimal numbers instead of a dot. To realize it in matplotlib, I do
> > > > something like
> > > >
> > > > >from matplotlib.ticker import FuncFormatter
> > > >
> > > > import pylab
> > > > pylab.figure()
> > > > formatter = FuncFormatter(lambda x,pos: ("%.2f"%x).replace(".",","))
> > > > ax = pylab.axes()
> > > > ax.xaxis.set_major_formatter(formatter)
> > > > ax.yaxis.set_major_formatter(formatter)
> > > > ax.plot(pylab.arange(0,1,0.1),pylab.arange(0,1,0.1))
> > > > This works fine for me,
> > >
> > > I had the same idea ;-). The problem is that you have a fixed number
> of
> > > digits
> > > behind the comma, which is not the desirable behaviour during zoom.
> > > I changed the ticker.py/ axes.py files to circumwait this
> disadvantage. I
> > > attached a patch showing my changes and maybe somebody can test it.
> > > You can activate it using:
> > > ax.ticklabel_format(style='comma')
> > > for an ScalarFormatter
> > >
> > > > but I encounter a problem when I do an
> > > > imshow-command with a colorbar. In the imshow-axes, it's o.k., but
> for
> > >
> > > the
> > >
> > > > colorbar it doesn't really work. I do
> > > >
> > > > cb = pylab.colorbar()
> > > > cb.ax.yaxis.set_major_formatter(formatter)
> > > >
> > > > and, actually, all dots are replaced by com9mata, but the values are
> > >
> > > also
> > >
> > > > changed! E.g. instead of the old values (without formatter) from
> > > > 0-0.54, the
> > > >
> > > > values are increased to 0-0.95.
> > >
> > > [...]
> > >
> > > > Can anyone explain why it doesn't work out as I expect it to work?
> > >
> > > I don't know were the problem comes from. I attached your example in a
> > > slitly
> > > modified version and this shows that the problem is not due to your
> > > special
> > > formatting. It occurs with matplotlib.ticker.ScalarFormatter, too.
> > >
> > > best regards,
> > > Matthias
> > >
> > > > Or is there a better, more standard way to substitute the dots by
> > >
> > > commata?
> > >
> > > > Thanks,
> > > > Thorsten
> > >
> > >
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