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 > <matplotlib@...2127... <mailto:matplotlib@…2127…>> 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 > <matplotlib@...2127... <mailto:matplotlib@…2127…>> > 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 versionsImportError: 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 > <matplotlib@...2127... > <mailto:matplotlib@…2127…>> 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 > <mdroe@...86... <mailto:mdroe@…86…>> 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,
MikeJeffrey 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).
-JeffreyOn Thu, Jul 16, 2009 at 12:00 PM, Michael > Droettboom <mdroe@...86... > <mailto:mdroe@…86…> <mailto:mdroe@…86… > <mailto:mdroe@…86…>>> 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,
MikeJeffrey 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
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-- 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