the example works very well, but what I have is 10 numbers that I want
to put in between 11 ticks. Actually what I havve is a checkerboard
(using pcolor) and I want to label the X and Y of each pixel....
and now I am confused with the API to do that... The example uses
objects that can provide Locator and Formatter instances, but I just
have a sequence of numbers....
Johann
Johann Cohen-Tanugi wrote:
> thanks a lot!
> Johann
>
> John Hunter wrote:
>
>> On Sat, Jul 11, 2009 at 1:15 PM, Eric Firing<efir...@hawaii.edu> wrote:
>>
>>
>>> John Hunter wrote:
>>>
>>>
>>>> On Thu, Jul 9, 2009 at 9:44 AM, Johann Cohen-Tanugi<co...@lpta.in2p3.fr>
>>>> wrote:
>>>>
>>>>
>>>>> Hello, how can I center axis tick labels, so that the labels ends up at
>>>>> the center between 2 ticks.
>>>>>
>>>>>
>>>>>
>>>> There is no support for this, though you can left or right align a
>>>> label with a single tick::
>>>>
>>>> for label in ax.xaxis.get_xticklabels():
>>>> label.set_horizontalalignment('right')
>>>>
>>>> JDH
>>>>
>>>>
>>> Labels for intervals rather than ticks would be nice to have; this is
>>> commonly used for labeling months or years, for example. I don't have time
>>> to work on it now, unfortunately.
>>>
>>> The best way to fake it with present facilities might be to use no labels on
>>> the major ticks, place minor ticks half-way between the majors, set their
>>> lengths to zero, and label them.
>>>
>>>
>> Nice idea, just committed this example to svn as
>> examples/pylab_examples/centered_ticklabels.py
>>
>> import datetime
>> import numpy as np
>> import matplotlib
>> import matplotlib.dates as dates
>> import matplotlib.ticker as ticker
>> import matplotlib.pyplot as plt
>>
>> # load some financial data; apple's stock price
>> fh = matplotlib.get_example_data('aapl.npy')
>> r = np.load(fh); fh.close()
>> r = r[-250:] # get the last 250 days
>>
>> fig = plt.figure()
>> ax = fig.add_subplot(111)
>> ax.plot(r.date, r.adj_close)
>>
>> ax.xaxis.set_major_locator(dates.MonthLocator())
>> ax.xaxis.set_minor_locator(dates.MonthLocator(bymonthday=15))
>>
>> ax.xaxis.set_major_formatter(ticker.NullFormatter())
>> ax.xaxis.set_minor_formatter(dates.DateFormatter('%b'))
>>
>> for tick in ax.xaxis.get_minor_ticks():
>> tick.tick1line.set_markersize(0)
>> tick.tick2line.set_markersize(0)
>> tick.label1.set_horizontalalignment('center')
>>
>> imid = len(r)/2
>> ax.set_xlabel(str(r.date[imid].year))
>> plt.show()
>>
>>
>
> ------------------------------------------------------------------------------
> Enter the BlackBerry Developer Challenge
> This is your chance to win up to $100,000 in prizes! For a limited time,
> vendors submitting new applications to BlackBerry App World(TM) will have
> the opportunity to enter the BlackBerry Developer Challenge. See full prize
> details at: http://p.sf.net/sfu/Challenge
> _______________________________________________
> Matplotlib-users mailing list
> Matplotlib-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/matplotlib-users
>
------------------------------------------------------------------------------
Enter the BlackBerry Developer Challenge
This is your chance to win up to $100,000 in prizes! For a limited time,
vendors submitting new applications to BlackBerry App World(TM) will have
the opportunity to enter the BlackBerry Developer Challenge. See full prize
details at: http://p.sf.net/sfu/Challenge
_______________________________________________
Matplotlib-users mailing list
Matplotlib-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/matplotlib-users
