[Matplotlib-users] mpl.colors.BoundaryNorm question

Hi, I'd like to generate a colormap index based on an array of levels & using an existing colormap (Spectral). However, Id like the cmap index to start at the 0.3 value of the Spectral scale (orange/yellow area) instead of starting at the '0' scale value (red area), and then continue until the 0.8

Re: [Matplotlib-users] controlling quiver colors with C arg

Nevermind, I found the answer; quiver also accepts the cmap & norm args... Sorry for the double post as well...email/outlook issues... Thanks, P.Romero -Original Message- From: P.R. [mailto:romero...@hotmail.com] Sent: 2009-08-13 9:17 PM To: matplotlib-users@lists.sourceforge.net Subjec

[Matplotlib-users] controlling quiver colors with C arg

Question: If I have an array C with values for the arrow vectors' magnitudes, how can I control the magnitude levels & colors that are assigned to the quiver arrows? I successfully managed to plot multi-colored arrows using the 'C' arg, but I'd also like to control the levels & colors, and also pl

[Matplotlib-users] controlling quiver colors with C arg

Question: If I have an array C with values for the arrow vectors' magnitudes, how can I control the magnitude levels & colors that are assigned to the quiver arrows? I successfully managed to plot multi-colored arrows using the 'C' arg, but I'd also like to control the levels & colors, and also pl

Re: [Matplotlib-users] Bug with pcolorfast

G Jones wrote: > Hello, > Executing the following commands from ipython --pylab produces the error > below: > > ax = subplot(111) > ax.pcolorfast(randn(100,100)) > ax.set_xlim(2000,2001) > draw() > > I ran into the error in a more complicated script, but this seems to be > a simple example to r

[Matplotlib-users] Align Text (Relative)

I am currently using the annotate() method for my data points and I was curious if there is a way to center a line of text relative to a line of text below it. I am currently using two annotate() function calls in a row (I need the text to be different colors) but I need the first one to act as a

[Matplotlib-users] Bug with pcolorfast

Hello, Executing the following commands from ipython --pylab produces the error below: ax = subplot(111) ax.pcolorfast(randn(100,100)) ax.set_xlim(2000,2001) draw() I ran into the error in a more complicated script, but this seems to be a simple example to reproduce it. I notice if I instead use:

[Matplotlib-users] Fwd: SciPy2009 BoF Wiki Page

Hi folks, David Warde-Farley kindly set up a page to coordinate BoF attendance at the conference, in case anyone on this list is interested. Details below. Cheers, f -- Forwarded message -- From: David Warde-Farley Date: Thu, Aug 13, 2009 at 2:20 PM Subject: [IPython-user] S

Re: [Matplotlib-users] contourf interpolation/smoothness

Jeff, The docstring is clear. My question was on how to actually create the lats&lons arrays (sorry, Im not a very strong python programmer). Could you please recommend a method for dividing a lat/lon array in half? Again, I apologize for asking such a basic question... Thanks, P.R. -Origi

Re: [Matplotlib-users] contourf interpolation/smoothness

P.R. wrote: > Jeff, > One more question: > Given two arbitrary X&Y arrays, what's the easiest/fastest way to convert to > a finer array ? > (for example, convert a 0.5 degree 'X' or 'Y' array to a 0.25 array over the > same bounds as the original array) > > - I need a method that can handle arbitra

Re: [Matplotlib-users] contourf interpolation/smoothness

Jeff, One more question: Given two arbitrary X&Y arrays, what's the easiest/fastest way to convert to a finer array ? (for example, convert a 0.5 degree 'X' or 'Y' array to a 0.25 array over the same bounds as the original array) - I need a method that can handle arbitrary grid sizes & resolutions

Re: [Matplotlib-users] contourf interpolation/smoothness

Jeff, Perfect. I'll give that a try... Thanks again, P.R. -Original Message- From: Jeff Whitaker [mailto:jsw...@fastmail.fm] Sent: 2009-08-13 7:15 AM To: Eric Firing Cc: P.R.; matplotlib-users@lists.sourceforge.net Subject: Re: [Matplotlib-users] contourf interpolation/smoothness Eric

[Matplotlib-users] output pngs to dark?

Hi, I have a piece of code which explicitly creates a 3 column array of red, green, blue values which I have scaled. For example RGB = np.array( [ 10, 100, 180 ] ) etc. Anyway, I use "savefig" to ouput it to a png image. The problem is that the PNG looks a lot darker than it should do, in fact if

Re: [Matplotlib-users] contourf interpolation/smoothness

Eric Firing wrote: > P.R. wrote: > >> This has probably been asked before, so I apologize... >> >> Is it possible to improve the smoothness/interpolation used in contourf? >> I know that the interpolation can be set for imshow(pcolor?), but I couldn't >> see how to set it for contourf. >> >> Rig