[Matplotlib-users] legend--plot obj association

Hi everyone, Given a legend [1], I'm trying to figure out which plot objects it references. Is this possible at all? The reverse would also be fine, i.e., given a plot object (e.g., a line), find the legend(s) in which it is referenced. Cheers, Nico [1] http://matplotlib.org/api/legend_api.html

Re: [Matplotlib-users] get_facecolor() returns 4-tuple, contains RGB values?

gests. --Nico On Tue, Dec 13, 2011 at 10:19 PM, Vlastimil Brom wrote: > 2011/12/13 Nico Schlömer : >> Hi, >> >> upon extracting the face color of a matplotlib.path.Path object, >> >>   fc = obj.get_facecolor() >> >> I always seem to get an array of l

[Matplotlib-users] get_facecolor() returns 4-tuple, contains RGB values?

Hi, upon extracting the face color of a matplotlib.path.Path object, fc = obj.get_facecolor() I always seem to get an array of length 4. This initially led me to believe I'm dealing with CMYK values, but it really seems like the last entry is *always* 1.0 and the first three give the RGB repr

[Matplotlib-users] contourf: matplotlib.path.Path are LINETOs?

Hi all, when drawing contourf plots, I inspected the underlying matplotlib.path.Path elements that determine the curves and noticed that they are all of code LINETO (see http://matplotlib.sourceforge.net/api/path_api.html#matplotlib.path.Path) although the number of vertices is 6, actually suggest

Re: [Matplotlib-users] mplot3d, set_aspect('equal') doesn't work

Also, set_{x,y,z}lim3d() doesn't seem to influence the plot at all. ? --Nico On Mon, Jul 4, 2011 at 6:54 PM, Nico Schlömer wrote: > Hi all, > > this issue has come up before (see > http://www.mail-archive.com/matplotlib-users@lists.sourceforge.net/msg14255.html) > and n

[Matplotlib-users] mplot3d, set_aspect('equal') doesn't work

Hi all, this issue has come up before (see http://www.mail-archive.com/matplotlib-users@lists.sourceforge.net/msg14255.html) and now it was me who got bitten by it: As far as I can see, for mplot3d axes, it is not possible to set the aspect ratio of the axes to something other than 'auto' -- anywa

[Matplotlib-users] get_axis_off()?

Hi all, given an axes object, is there any way of telling whether set_axis_off() has been called on this object? Cheers, Nico -- Xperia(TM) PLAY It's a major breakthrough. An authentic gaming smartphone on the nation's m

Re: [Matplotlib-users] get_tick{label}s: are tick labels drawn?

t seems to work better. Bug? Cheers, Nico On Sat, May 8, 2010 at 10:36 AM, Nico Schlömer wrote: > Hi, > > say, is there a way to query an axis object whether or not the tick > labels are drawn? > > I looked at -- one the x-axis -- get_xticks( and get_xticklabels() > wh

[Matplotlib-users] get_tick{label}s: are tick labels drawn?

Hi, say, is there a way to query an axis object whether or not the tick labels are drawn? I looked at -- one the x-axis -- get_xticks( and get_xticklabels() which in two different situations would spit out a list of doubles (the tick positions) and a list of text entries of the form Text(0,0,'').

Re: [Matplotlib-users] get_*gridlines alwys returns the same things?

to a known state, and you can toggle the state. > > If there is a substantial need to read the grid state, we could expose > it via a suitable API at the Axis level.  But is this important? > > Eric > >> >> &C >> >> >> On May 4, 2010, at 3:27 PM, Ni

[Matplotlib-users] get_*gridlines alwys returns the same things?

This is weird: When plotting something very simple, e.g., t = arange( 0.0, 2.0, 0.01 ) s = sin( 2*pi*t ) plot( t, s, ":" ) I thought I can check weather the grid is on or off by gca().get_xgridlines() -- but this *always* returns with *always* the same lines Line

[Matplotlib-users] text annotations encircled?

Hi all, is there any way to encircle a text annotation? Looking at http://matplotlib.sourceforge.net/api/pyplot_api.html#matplotlib.pyplot.annotate suggests tinkering with bbox I guess, but I haven't had any success with it. Hints? Cheers, Nico

[Matplotlib-users] arrows in contour lines?

Hi all, I'd like to make a countour plot just like in http://matplotlib.sourceforge.net/examples/pylab_examples/contour_demo.html but instead of text at the contour lines I'd like to have arrows in the in the direction of the contour lines. Does anyone know if that's possible. Cheers, Nico ---

[Matplotlib-users] TikZ/PGF backend

Well, I spend some time now setting up a framework for exporting matplotlib generated figures to TikZ code. You can find it on http://github.com/nicki/matplotlib2tikz The workflow is essentially that you generate your plot (dont show()), and then call matplotlib2tikz("myfile.tikz"); using a pr

Re: [Matplotlib-users] identification of color bars

backs and extract cb from it. >> >> Aaand everybody: "Fea-ture request, fea-ture request!" >> get_colorbar() for ScalarMappables :) >> >> Cheers, >> Nico >> >> >> >> >> On Mon, Feb 15, 2010 at 7:58 PM, Nico Schlömer

Re: [Matplotlib-users] identification of color bars

it would be possible to dig up on_changed( ) from the list of callbacks and extract cb from it. Aaand everybody: "Fea-ture request, fea-ture request!" get_colorbar() for ScalarMappables :) Cheers, Nico On Mon, Feb 15, 2010 at 7:58 PM, Nico Schlömer wrote: >> As far as I can se

Re: [Matplotlib-users] identification of color bars

> As far as I can see, it is the other way around, i.e., mappables > (e.g., images) know about the colorbar they are connected. Well yeah, that'd be even better. I'll check out the API. -- Hints would still be appreciated of course. --Nico

Re: [Matplotlib-users] identification of color bars

ou create? > > cbar = colorbar() > cax = cbar.ax > > cax is the axes instance of the colobar you just created. > > Regards, > > -JJ > > > On Mon, Feb 15, 2010 at 12:04 PM, Nico Schlömer > wrote: >> Hi, >> >> when plotting a color bar with a plot

[Matplotlib-users] identification of color bars

Hi, when plotting a color bar with a plot in matplotlib, the color bar gets treated internally as Axes. With two main plots, each of which comes with a color bar, one structurally gets (that is, a Figure has for childres Axes). To find out which one of those is a color bar,

Re: [Matplotlib-users] tick labels in colorbar?

> cb.ax.set_yticklabels((r'$-\pi$', '0', r'$\pi$')) Works like a charm. Thanks! --Nico -- SOLARIS 10 is the OS for Data Centers - provides features such as DTrace, Predictive Self Healing and Award Winning ZFS. Get Solar

[Matplotlib-users] save image from array?

Hi, I see that with imsave() it's possible to save an image based on its cmap. Is there also functionality in matplotlib to to store a file based on RGB(alpha) information? Cheers, Nico -- SOLARIS 10 is the OS for Data C

Re: [Matplotlib-users] tick labels in colorbar?

Hi, thanks for the suggestion. > ax.set_xticks((-pi,pi)) > ax.set_xticklabels(('$-\pi$','$\pi$')) I guess color bars are a little special in the sense that AttributeError: Colorbar instance has no attribute 'set_yticklabels' The tick positions are given not by set_yticks either, but as an op

[Matplotlib-users] tick labels in colorbar?

Hi, I'm plotting a colorbar with pylab.colorbar(ticks=(-pi,0,pi)) and trying to add proper "\pi" labels to it. Couldn't find out how to do that from the manual -- any hints here? Cheers, Nico -- SOLARIS 10 is the O

Re: [Matplotlib-users] Can't get interative to work

> I'm not sure, but one reason could be different backends. What kind of backend > are you using on the 2 machines? It was indeed a backend issue, fixed now. Thanks! --Nico -- Throughout its 18-year history, RSA Conferenc

[Matplotlib-users] Can't get interative to work

Hi, somehow I don't manage to set up matplotlib such that I can draw animations. I've been using the moving sin example from http://www.scipy.org/Cookbook/Matplotlib/Animations which spits out nicely moving sin-waves on one machine, but does nothing on the other. I'm puzzled. Checked pylab.is

Re: [Matplotlib-users] newbie question: type check?

> So what is it you're trying to accomplish? Maybe there is a better way. Well, I'm recursively iterating through the children of all objects, starting at gcf() (and then picking up gca(), lines, axes, everything that belongs to the plot), which is then parsed and a TikZ file is spit out. I need t

Re: [Matplotlib-users] newbie question: type check?

xes and Subplot, but I have no idea how > this works. > > Kind regards, > Matthias > > On Tuesday 12 January 2010 11:40:21 Nico Schlömer wrote: >> Hm. >> >> print type( gca() ) >> print gca().__class__ >> print isinstance( gca(), matplotlib.axes.AxesSubpl

Re: [Matplotlib-users] newbie question: type check?

ect has no attribute 'AxesSubplots ?Nico On Tue, Jan 12, 2010 at 6:45 AM, Joshua J. Kugler wrote: > On Monday 11 January 2010, Nico Schlömer elucidated thus: >> quick question from a Python noob: >> Suppose I have an instance of an object of matplotlib, Is there any >> wa

[Matplotlib-users] newbie question: type check?

Hi, quick question from a Python noob: Suppose I have an instance of an object of matplotlib, Is there any way to check on its type, e.g., whether it is an instance of matplotlib.axes.AxesSubplots? Cheers! Nico -- This S