Re: [Matplotlib-users] cross hatching in contours?

2012-12-05 Thread spencerahill
Jae-Joon Lee wrote > On Thu, Sep 15, 2011 at 10:33 PM, Jonathan Slavin > < > jslavin@.harvard > > wrote: >> I'm wondering if there is some way to do cross hatching as a way to fill >> contours rather than colors (using contourf).  The only references to >> cross hatching I see in the documentatio

Re: [Matplotlib-users] cross hatching in contours?

2012-12-05 Thread Phil Elson
As of matplotlib v1.2.0 you can hatch a contour set directly. There is an example in the gallery: http://matplotlib.org/examples/pylab_examples/contourf_hatching.html Hope that helps, Phil On 5 December 2012 17:28, spencerahill wrote: > Jae-Joon Lee wrote > > On Thu, Sep 15, 2011 at 10:33 PM

[Matplotlib-users] Varying alpha in ListedColormap not working

2012-12-05 Thread Oliver King
Hi, I've been trying to plot a line with varying alpha (but constant color). After much googling I have come up with the following code segment, which by all indications should work. It works when I vary an individual RGB element, but not when I vary alpha.

Re: [Matplotlib-users] Varying alpha in ListedColormap not working

2012-12-05 Thread Paul Ivanov
On Wed, Dec 5, 2012 at 2:36 PM, Oliver King wrote: > What appears to be happening is that the alpha values in the cmap I use when > I create the ListedColormap object are being ignored by the add_collection > function. I see that this bug (or something quite like it) was reported in > late 2008

Re: [Matplotlib-users] Varying alpha in ListedColormap not working

2012-12-05 Thread Oliver King
> What is your matplotlib.__version__ ? I think that code only made it's > way into v1.2.0 (the latest stable), and was did not make it into > v1.1.1 (or anything before it) I'm running 1.1.0 - I'll upgrade it now. Thanks for the help! Oliver

[Matplotlib-users] plotting time series of bits

2012-12-05 Thread Dale Lukas Peterson
I have a time series of 32-bit unsigned integers in the form of a numpy array with dtype=numpy.uint32. The bits of each integer in array correspond to various boolean states collected during an experiment. I would like to make a plot this data in the following way: 1) time on the horizontal axis