On 3/26/12 12:49 PM, Christopher Graves wrote: > On Sun, Mar 11, 2012 at 2:32 PM, Christopher Graves > <christoph.gra...@gmail.com <mailto:christoph.gra...@gmail.com>> wrote:
> Try this: > > from pylab import * > from matplotlib.ticker import AutoMinorLocator > > clf() > ax=subplot(111) > ax.autoscale(tight=True) > plot([1,2,4],[1,2,3]) > ax.xaxis.set_minor_locator(__AutoMinorLocator(2)) > ax.yaxis.set_minor_locator(__AutoMinorLocator(2)) > draw() > > M > > PS: I believe this is a fairly new feature... > > > Thanks! Great news that AutoMinorLocator has been added and > accomplishes this. Regarding the P.S. I can confirm that the feature > was not in matplotlib 1.0.1 - I had to update to 1.1.0 to use it. > > Best /Chris > > > > Hi Mike, > > A follow-up question... When using that, if one then tries to manually > use the zoom-box tool available with a matplotlib plot, if one draws too > small of a box (less than 2 major ticks in x or y dimension, based on > the following error message), it gives the following error and further > operations on the plot do not work. > > ValueError: Need at least two major ticks to find minor tick locations > ( File "/usr/lib/pymodules/python2.7/matplotlib/ticker.py", line 1528, > in __call__ ) > > Any way to avoid this for now? (And ultimately, should this be made into > a bug fix request?) Ok, I seem to remember seeing this error before, but I can't trip it now (with either 1.1.1rc or today's git checkout of 1.2.x). Do you have a short script that can reproduce this? For me, the zoom-box tool seems to be [correctly] setting the majortick locations as I zoom in, thus preventing this exception. I should note that I'm using the GTKAgg frontend. This may be the issue. A long time ago I was using the MacOSX frontend, and maybe this was when I was seeing it... Aside from that, this would be a bug. M ------------------------------------------------------------------------------ This SF email is sponsosred by: Try Windows Azure free for 90 days Click Here http://p.sf.net/sfu/sfd2d-msazure _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
