matplotlib-users Mailing List for matplotlib

Dear All,
I am quite a newbie about Python and Pylab, but I am starting to like
the ease you can develop with using these tools.
I am interested in 2D radial plots (think for instance about the plot
of the temperature along the cross-section of a pipe).
I had a look at the tutorial online, in particular to the case described in:
http://matplotlib.sourceforge.net/screenshots/polar_demo.py
but there is something which is not 100% clear to me.
What if, instead of having an analytical expression for the quantity I
want to plot I have to read it (together with the r and theta
coordinates) from a file, e.g.:
r theta T
where the columns r and theta contain the list of (r,theta)
coordinates (the "grid" I am using along the cross section) and T the
temperature evaluated at that grid point?
If necessary, I can post an example file (but at the moment I am
working with fairly big files and I think I conveyed an idea of what I
am after).
Many thanks
Lorenzo

Steve Schmerler wrote:
> Beha Online wrote:
>> I receive the following message when I import pylab with: "from pylab import *":
>>
>> /usr/lib64/python2.4/site-packages/matplotlib/numerix/__init__.py:67:
>> DeprecationWarning: Numeric use as a numerix backed for matplotlib is
>> deprecated
>> DeprecationWarning, stacklevel=1)
>>
> 
> In your ~/.matplotlib/matplotlibrc file set "numerix: numpy" in order to 
> use numpy. AFAIK, the support for Numeric and numarray will be dropped 
> sooner or later.
> 
Correct. It has already been dropped in svn, so the next release will 
support only numpy. The numerix module will still be present, so the 
change to numpy-only inside mpl should not break user code, provided the 
user has numpy installed.
Eric

Beha Online wrote:
> I receive the following message when I import pylab with: "from pylab import *":
> 
> /usr/lib64/python2.4/site-packages/matplotlib/numerix/__init__.py:67:
> DeprecationWarning: Numeric use as a numerix backed for matplotlib is
> deprecated
> DeprecationWarning, stacklevel=1)
> 
In your ~/.matplotlib/matplotlibrc file set "numerix: numpy" in order to 
use numpy. AFAIK, the support for Numeric and numarray will be dropped 
sooner or later.
-- 
cheers,
steve
Random number generation is the art of producing pure gibberish as 
quickly as possible.

I receive the following message when I import pylab with: "from pylab import *":
/usr/lib64/python2.4/site-packages/matplotlib/numerix/__init__.py:67:
DeprecationWarning: Numeric use as a numerix backed for matplotlib is
deprecated
DeprecationWarning, stacklevel=1)
What can be wrong here? I am on Linux Fedora 6, 64 bits version, Python
2.4.4
Thanks for any help.
-Beha

On Sunday 24 June 2007 20:45:09 Rodrigo L=F3pez Negrete de la Fuente wrote:
> I've been trying to generate certain plots, but sometimes I get strange
> additions to the yticks in the plots. I've been wondering if there is a w=
ay
> to force matplotlib to not do that, and only use multiplicative correctio=
ns
> to the plots (i.e., just the x1e-3 for example and not the +4.519x10).
Rodrigo,
This behaviour is controlled by the formatter of the yaxis. Choose one=20
formatter that suits you, or define your own.
More info:
http://matplotlib.sourceforge.net/matplotlib.ticker.html
examples/newscalarformatter_demo.py

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