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.
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
>
> -------------------------------------------------------------------------
> Check out the new SourceForge.net Marketplace.
> It's the best place to buy or sell services for
> just about anything Open Source.
>
> http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace
> _______________________________________________
> Matplotlib-users mailing list
> Matplotlib-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/matplotlib-users
>
>
>
-------------------------------------------------------------------------
Check out the new SourceForge.net Marketplace.
It's the best place to buy or sell services for
just about anything Open Source.
http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace
_______________________________________________
Matplotlib-users mailing list
Matplotlib-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/matplotlib-users
