matplotlib-users Mailing List for matplotlib

>>>>> "Oguz" == Oguz Akyuz <ogu...@gm...> writes:
 Oguz> Hi, It seems that saving in SVG is not possible if I use
 Oguz> default latex fonts in my plot. Do you have any suggestions?
 Oguz> This is the error that I get:
It's not possible currently -- we could make it work via dvipng I
suspect, but noone has done it yet.
JDH

>>>>> "Alfredo" == Alfredo Sotelo <alf...@gm...> writes:
 Alfredo> Hi, Does anyone know how to use FuncFormatter class to
 Alfredo> translate the tick labels using a user defined function?
 Alfredo> I have on my xaxis the code of my weather stations and I
 Alfredo> have defined a function to replace them with their
 Alfredo> station names. The function uses just a dictionary.
 Alfredo> When I tried to apply "FuncFormatter(func)" it didn't
 Alfredo> work.
 Alfredo> No results found searching for examples or recipes :(
mpl> grep -l FuncFormatter examples/*.py
examples/custom_ticker1.py
#!/usr/bin/env python
from matplotlib.ticker import FuncFormatter
from pylab import *
x = arange(4)
money = [1.5e5, 2.5e6, 5.5e6, 2.0e7]
def millions(x, pos):
 'The two args are the value and tick position'
 return '$%1.1fM' % (x*1e-6)
formatter = FuncFormatter(millions)
ax = subplot(111)
ax.yaxis.set_major_formatter(formatter)
bar(x, money)
xticks( x + 0.5, ('Bill', 'Fred', 'Mary', 'Sue') )
show()

On Saturday 02 December 2006 17:39, Simson Garfinkel wrote:
> Hi. I'm interested in creating a date plot showing bandwidth along a
> link. I want to have a dot in the center of each date with the
> average bandwidth and use the error bars to show the 25th and 75th
> percentiles. I've been trying to figure out how to do this and am
> having problems.
My 2c:
Don't bother yet about dates: first get the plot as you want it, assuming that 
your x data are floats (use date2num if needed). Then you can tackle the 
problem of displaying dates.
If you poke around the sources (axes.py). you'll find that 'plot_date' is only 
'plot', where a couple of extra parameters are set:
if xdate:
 self.xaxis_date(tz) 
'xdate' is a flag indicating whether the data on the x axis are dates (True) 
or not (False), 'tz' is the timezone flag (default to None), and 'self' is 
your current axes object (you can get its handle by gca() if you haven't 
specified it otherwise).
Combining these pieces of information should to the trick (or most of it).
Let us know how it goes anyway.
P.

Hi,
 Does anyone know how to use FuncFormatter class to translate the tick
labels using a user defined function?
 I have on my xaxis the code of my weather stations and I have defined
a function to replace them with their station names. The function uses
just a dictionary.
 When I tried to apply "FuncFormatter(func)" it didn't work.
 No results found searching for examples or recipes :(
 Anyone could offer an example of use?
 Thanks a lot,
 Alfredo
-- 
Alfredo Sotelo new e-mail: alf...@gm...

Hi,
It seems that saving in SVG is not possible if I use default latex
fonts in my plot. Do you have any suggestions? This is the error that
I get:
/usr/lib/python2.4/site-packages/matplotlib/font_manager.py:989:
UserWarning: Could not match Computer Modern Roman, normal, normal.
Returning /usr/lib/python2.4/site-packages/matplotlib/mpl-data/Vera.ttf
 warnings.warn('Could not match %s, %s, %s. Returning %s' % (name,
style, variant, self.defaultFont))
Traceback (most recent call last):
 File "/usr/lib/python2.4/site-packages/matplotlib/backends/backend_gtk.py",
line 631, in save_figure
 self.canvas.print_figure(fname)
 File "/usr/lib/python2.4/site-packages/matplotlib/backends/backend_gtkagg.py",
line 113, in print_figure
 orientation, **kwargs)
 File "/usr/lib/python2.4/site-packages/matplotlib/backends/backend_agg.py",
line 481, in print_figure
 orientation, **kwargs)
 File "/usr/lib/python2.4/site-packages/matplotlib/backends/backend_svg.py",
line 289, in print_figure
 self.figure.draw(renderer)
 File "/usr/lib/python2.4/site-packages/matplotlib/figure.py", line
538, in draw
 for a in self.axes: a.draw(renderer)
 File "/usr/lib/python2.4/site-packages/matplotlib/axes.py", line 1057, in draw
 a.draw(renderer)
 File "/usr/lib/python2.4/site-packages/matplotlib/axis.py", line 561, in draw
 tick.draw(renderer)
 File "/usr/lib/python2.4/site-packages/matplotlib/axis.py", line 161, in draw
 if self.label1On: self.label1.draw(renderer)
 File "/usr/lib/python2.4/site-packages/matplotlib/text.py", line 1167, in draw
 Text.draw(self, renderer)
 File "/usr/lib/python2.4/site-packages/matplotlib/text.py", line 349, in draw
 self._fontproperties, angle)
 File "/usr/lib/python2.4/site-packages/matplotlib/backend_bases.py",
line 366, in draw_tex
 raise NotImplementedError
NotImplementedError