This is caused by an interaction between antialiasing and filled areas with perfectly aligned edges. Both Agg and Cairo suffer from this "problem". There has been a discussion on the devel a few times about ways around it, none of which have really panned out, if I recall correctly. Though this isn't a regression, as far as I can tell. 0.98.5.x produces the same lines as SVN (at least for me).
Sorry I don't have an easy answer to this. Mike Jeffrey Fogel wrote: > Last question, I promise. The new contourf seems to include faint > lines for the contours. I would like to remove these, but the > docstring doesn't seem to have a kwarg to do so. Do you know how to > remove them? > > -Jeffrey > > On Thu, Jul 16, 2009 at 2:01 PM, Jeffrey Fogel > <matplot...@jeffreyfogel.com <mailto:matplot...@jeffreyfogel.com>> wrote: > > nevermind, I just re-ran the setup.py script and now it's > working. Strange, but oh well. The contour plot is also working > now. Thanks for all your help with this. > > -Jeffrey > > > On Thu, Jul 16, 2009 at 1:55 PM, Jeffrey Fogel > <matplot...@jeffreyfogel.com <mailto:matplot...@jeffreyfogel.com>> > wrote: > > Quick question. I thought the compiling from source went > smoothly, but when I try "from pylab import *" I get the > following error: > > > > /Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/matplotlib/dates.py > in <module>() > 85 import re, time, math, datetime > 86 > ---> 87 import pytz > 88 > 89 # compatability for 2008c and older versions > > ImportError: No module named pytz > > > Do you have any idea why? I thought pytz was supposed to be > included in matplotlib (that's what the setup.py script seems > to imply). I'm running OS X 10.4.11. Thanks. > > -Jeffrey > > > On Thu, Jul 16, 2009 at 1:15 PM, Jeffrey Fogel > <matplot...@jeffreyfogel.com > <mailto:matplot...@jeffreyfogel.com>> wrote: > > Thanks for looking into it and glad to hear that it was > fixed. Depending on whether this shows up for the plots > I'm making for the paper I'm writing, I may hold off on > compiling from source until the paper is done. Were there > any other major changes/problems in the svn version? > > -Jeffrey > > > On Thu, Jul 16, 2009 at 12:20 PM, Michael Droettboom > <md...@stsci.edu <mailto:md...@stsci.edu>> wrote: > > It looks like this bug has been fixed on the SVN > trunk. Unfortunately, these changes were pretty major > surgery, so they don't easily apply to 0.98.5.x. > Unfortunately, for the time being, it looks like > you'll need to wait until the next release, or compile > matplotlib from SVN yourself. I haven't heard any > concrete plans about the next release yet. > > > Cheers, > Mike > > Jeffrey Fogel wrote: > > I haven't tried that as I didn't realize there was > an issue there. I'm fairly new to matplotlib and > am definitely still learning how to use it. > Thanks for your help with this, I've attached 3 > data files and the test script. Please let me > know what you find (and feel free to comment on > the code if there is an easier way to do something). > -Jeffrey > > On Thu, Jul 16, 2009 at 12:00 PM, Michael > Droettboom <md...@stsci.edu > <mailto:md...@stsci.edu> <mailto:md...@stsci.edu > <mailto:md...@stsci.edu>>> wrote: > > You might be running into one of the path > simplification bugs in > the 0.98.x series. Have you tried with the > rcParam path.simplify > turned off? If you can sent me a self > contained script and data > off-list, I can test this against the SVN > version to see if this > has already been addressed. > > Cheers, > Mike > > Jeffrey Fogel wrote: > > I'm having a strange problem with my > contour plots and I'm > hoping someone here will be able to help. > I had a dataset > that was plotting fine until I decided I > wanted to create > plots with the data mirrored over the > x-axis. This seems to > work fine most of the time, but every now > and then I get a > plot that seems to just ignore a couple of > data points when > creating the contours. I've attached a > plot of what I mean. > Looking at the arrays the contour plot is > created from > doesn't show any obvious problems (there > are values there that > should be plotted). It's very strange, any > ideas? > > matplotlib 0.98.5.2 > numpy 1.2.1 > python 2.5.1 > > -Jeffrey > > > ------------------------------------------------------------------------ > > > > ------------------------------------------------------------------------ > > > > ------------------------------------------------------------------------------ > 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 > <mailto:Matplotlib-users@lists.sourceforge.net> > > <mailto:Matplotlib-users@lists.sourceforge.net > <mailto:Matplotlib-users@lists.sourceforge.net>> > > > > https://lists.sourceforge.net/lists/listinfo/matplotlib-users > > > -- Michael Droettboom > Science Software Branch > Operations and Engineering Division > Space Telescope Science Institute > Operated by AURA for NASA > > > > -- > Michael Droettboom > Science Software Branch > Operations and Engineering Division > Space Telescope Science Institute > Operated by AURA for NASA > > > > > -- Michael Droettboom Science Software Branch Operations and Engineering Division Space Telescope Science Institute Operated by AURA for NASA ------------------------------------------------------------------------------ Enter the BlackBerry Developer Challenge This is your chance to win up to $100,000 in prizes! 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