Re: [Matplotlib-users] [matplotlib-devel] License, freetype

Well, if Freetype were only distributed under the GPL, you couldn't distribute matplotlib in binary form without providing the source code. However, Freetype is distributed under more than one license. (see: https://www.freetype.org/license.html ) Because it's distributed under a BSD-style licen

Re: [Matplotlib-users] [matplotlib-devel] RFC: candidates for a new default colormap

> Guess I'll be closing this: > https://github.com/matplotlib/matplotlib/pull/3858 > -paul Nice PR! That does a heck of a lot better job than my (way too simplistic) example. > On Fri, Jun 5, 2015 at 10:05 PM, Jody Klymak wrote: > Hi Eric, > > OK, how about an example based on the following note

Re: [Matplotlib-users] [matplotlib-devel] RFC: candidates for a new default colormap

Not to plug one of my own answers to much, but here's a basic example. http://stackoverflow.com/questions/20144529/shifted-colorbar-matplotlib I've been meeting to submit a PR with a more full featured version for a few years now, but haven't. On Jun 5, 2015 4:45 PM, "Sourish Basu" wrote: > On

Re: [Matplotlib-users] Fwd: [matplotlib-devel] RFC: candidates for a new default colormap

On Fri, Jun 5, 2015 at 11:15 AM, Joe Kington wrote: > Hopefully I will have some time today to play around with the D option. I >> want to see if I can shift the curve a bit to include more yellows and >> orange so that it can have a mix of cool and warm colors. >> >&

Re: [Matplotlib-users] Confused about rgb_to_hsv and hsv_to_rgb

I think you're asking how to blend a custom intensity image with an rgb image. (I'm traveling and just have my phone, so you'll have to excuse my lack of examples.) There are several ways to do this. Basically, it's analogous to "blend modes" in Photoshop etc. Have a look at the matplotlib.colors

Re: [Matplotlib-users] Key events using nbagg backend

is what happens when I reply to e-mail without putting much thought into it. Thanks! -Joe On Thu, Dec 4, 2014 at 8:58 PM, Brendan Barnwell wrote: > On 2014-12-04 15:40, Joe Kington wrote: > > Nbagg is non-interactive, similar to Agg. No events other than draw > events >

Re: [Matplotlib-users] Key events using nbagg backend

Nbagg is non-interactive, similar to Agg. No events other than draw events are supported, as far as I know. I think there are long term plans to change that (eg, webagg and mplh5canvas), but it's a fairly tricky problem. How that helps clarify why things aren't working, anyway. -Joe On Dec 4, 201

Re: [Matplotlib-users] Matplotlib-users Digest, Vol 102, Issue 39

> > On Fri, Nov 21, 2014 at 10:42 AM, Pedro Marcal > wrote: > @MariaLukis, I had to go through contortions to plot an arbitrary > quadrilateral mesh, in 3D. I resolved it by storing every line plotted and > retracing the best set to take me to the starting point of the quad I was > plotting. It wo

Re: [Matplotlib-users] Basemap from proj4 string

I agree that it would be useful, but basemap doesn't support EPSG codes, so this isn't fully possible in general. On a side note, if you're ever just wanting to transform coordinates, pyproj supports generic proj4 strings. (e.g. "proj = pyproj.Proj(your_proj4_string)") It might be possible to in

Re: [Matplotlib-users] Inverting a datetime / plot_date y-axis

A quick way to do this is ``ax.invert_yaxis()`` (and invert_xaxis() for the x-axis). That way you preserve auto-scaling and don't wind up with manually set axis limits. What you did should have worked, but ``ymin`` and ``ymax`` are probably datetime objects. ``ylim`` isn't smart enough to conve

Re: [Matplotlib-users] Region within contour --> 2D array

Why not just use boolean indexing? E.g. to find the region that falls between 5 and 10, do "(z >=5) & (z <= 10)": In [1]: import numpy as np In [2]: x, y = np.mgrid[-10:10, -10:10] In [3]: z = np.hypot(x, y) In [4]: result = (z >= 5) & (z <= 10) In [5]: result.astype(int) Out[5]: array([[0, 0

Re: [Matplotlib-users] pick_event after zooming/panning stops working.

I think the OP's desire is to have pick events fire after the zoom has been triggered. Currently, after you zoom (or pan), the zoom tool is still active until you click it again. Pick events won't fire while the zoom tool is the selected tool, and you have to manually de-select it (i.e. click the

Re: [Matplotlib-users] Example showing differences between Mac O$ and Windows use

That should be `matplotlib.use('TkAgg')`, not "Agg". Agg is a non-interactive backend, while TkAgg is an interactive Tkinter wrapper around the Agg backend. On Thu, Mar 13, 2014 at 9:53 AM, Jeroen Hegeman wrote: > Hi Christophe, > > This is (I think) a known limitation of the OS X backend. One w

Re: [Matplotlib-users] multiplot in a for loop

On Mar 10, 2014 1:00 PM, "Gabriele Brambilla" < gb.gabrielebrambi...@gmail.com> wrote: > > And how can I select in which position of the grid of plots put my errorbar plot? > > like axes[i].errorbar(...)? Exactly. Except that axes will be a 2d array if you have multiple rows and columns, so it wou

[Matplotlib-users] OT: Just because you can...

There's a bad meme here. Hope you'll forgive the distraction! import matplotlib.pyplot as plt import numpy as np def main(): t = np.linspace(0, 4*np.pi, 1000) fig, ax = plt.subplots() ax.plot(t, np.cos(t)) ax.plot(t, np.sin(t)) for _ in range(10): fig = inception(fig

Re: [Matplotlib-users] Most generic way to wrap collections

On Tue, Jan 7, 2014 at 2:29 PM, Adam Hughes wrote: > Sorry, quick followup. I did find the gallery example to plot multiple > patches together: > > http://matplotlib.org/examples/api/patch_collection.html > > That's excellent. Now I guess my question is how best to generalize the > process of t

Re: [Matplotlib-users] Plotting with more than two y-axes (with twinx?)

omplish was produced two years ago in a stackoverflow > snippet by Joe Kington > < > http://stackoverflow.com/questions/7733693/matplotlib-overlay-plots-with-different-scales > > > , and shown in the first figure below. However, when I use his snippet in > matplotlib 1.3.x, I

[Matplotlib-users] Is there anything pcolor can do that pcolormesh can't?

Until very recently, I had somehow wound up with the impression that `pcolormesh` only handles rectilinear coordinate arrays, while `pcolor` can handle arbitrarily shaped

Re: [Matplotlib-users] indicating directions on stereographic projection.

Sourav - Are you by chance trying to make a stereonet? If so, your question makes a bit more sense. If that's what you're doing, have a look at mplstereonet. https://github.com/joferkington/mplstereonet It currently doesn't support polar stereonets, but that's something I've been meaning to add f

Re: [Matplotlib-users] pick event for images

the MIT license? I find very strange that > the FSF is using a license other than the (L)GPL. Does it also mean > that who wants to contribute to your project must sign a copyright > assignment to the FSF? > > I'm puzzled. > > Best, > Daniele > > >

Re: [Matplotlib-users] pick event for images

> Just now I installed your package mpldatacursor and run the example > image_example.py. > Awesome ! > Is there a chance to integrate it into matplotlib ? > > Nils > > > > On Wed, Oct 30, 2013 at 5:58 PM, Joe Kington wrote: > >> >> On Oct 30, 2013

Re: [Matplotlib-users] pick event for images

On Oct 30, 2013 9:43 AM, "Nils Wagner" wrote: > > Hi all, > > How can I retrieve the corresponding "color value" in percent, when I click on the image ? > You have to jump through a couple of hoops. Have a look at the _coords2index function in pick_info.py for mpldatacursor. https://github.com/j

Re: [Matplotlib-users] Pick event after using Zoom to rectangle

If you're asking how to do it interactively, just click on the zoom button again, and you should be able to fire pick events by clicking again. Hope that helps! -Joe On Oct 29, 2013 4:58 AM, "Nils Wagner" wrote: > Hi all, > > How can I use a pick event when I have used "Zoom to rectangle" before

Re: [Matplotlib-users] Choosing optimal figure width/height automatically

I just realized that I replied to this off-list. Sending back out to the entire list. (Sorry for the duplicate e-mail Christoph!) On Oct 18, 2013 6:11 AM, "Christoph Groth" wrote: > Joe, thank you very much for your reply. So the "figsize" of a > matplotlib plot is the physical size of the regi

Re: [Matplotlib-users] Choosing optimal figure width/height automatically

> > Unfortunately, figaspect is only an approximate solution, as it simply > uses the aspect ration of the image for the whole figure (with axes and > labels). > > I wonder how difficult it would be to teach matplotlib to tightly fit > the axes around an image, and, ideally, output the figure cro

[Matplotlib-users] Fwd: Python Session at AGU 2013

For anyone attending the AGU (American Geophysical Union) fall meeting this year, there will be a session on python and "big data" in the earth sciences. Abstract submission is still open until Aug. 6th. See below for more info. Cheers, -Joe -- Forwarded message -- From: IRIS Webm

Re: [Matplotlib-users] Linewidths in data space?

> Apart from implementing this natively in matplotlib, I was thinking if > I could work around this limitation for our purposes in the following > way: My objects to draw will always sit in a Collection. I could derive > my own Collection class with a draw() method that changes the > linewidth of t

Re: [Matplotlib-users] Evolution of the interface

On Mar 15, 2013 10:01 AM, "Christophe BAL" wrote: > > Hello, > I really appreciate the work done by matplotlib but I really think that > the interface must evolve. Here is a small example. > > object.set_something(...) > object.get_something() > > It could be easier to use a jQuery like st

Re: [Matplotlib-users] Feedback on an implementation of a matlab-ish "datacursor"

y the x and y values > > but not the z value. Then I realized it was printing the values for a > > contour that I had made invisible by setting its edgecolor to 'None'. > > This was because the contour created had two parts and I only wanted to > > show one of them

[Matplotlib-users] Feedback on an implementation of a matlab-ish "datacursor"

I recently got around to polishing up a snippet I've been using for quite awhile. https://github.com/joferkington/mpldatacursor/ and I was hoping to get some feeding on the current implementation. "mpldatacursor" allows a user to easily click on an artist and display a customizable, interactive

Re: [Matplotlib-users] Undocumented transform API change between 1.1 and 1.2?

pull requests and did scan the gallery for any noticeable changes, > but this one must have slipped the net. > > If you're still having problems with using the newer transform API, please > shout and I'd be happy to have a look for you. > Will do, thanks for the offer! >

[Matplotlib-users] Undocumented transform API change between 1.1 and 1.2?

Hi folks, At some point transforms.Transform was slightly refactored. (Particularly, this commit: https://github.com/matplotlib/matplotlib/commit/8bbe2e55f29b28ba558504b27596b8e36a087c1c) This changed what methods need to be overridden when subclassing Transform. All in all, it seems like a very

Re: [Matplotlib-users] plot with marker color coded according to z-value

That's what ``scatter`` is intended for. Basically, you want something like: plt.scatter(x, y, c=z, marker='s') plt.colorbar() Note that you can also vary the markers by size based on an additional parameter, as well. Have a look at this example: http://matplotlib.org/examples/pylab_exa

[Matplotlib-users] ANN: mplstereonet v0.2 - Stereonets for matplotlib

of parsing utilities - Geometric analysis utilities (e.g. plane intersections) Thank you all very much! -Joe Kington -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threa

Re: [Matplotlib-users] Newbie-question: spines with arrows

It sounds like you were using the right approach, you just got a bit lost on what some of the keyword parameters to annotate, etc do. Here's an example that should do what you want: import matplotlib.pyplot as plt from matplotlib.ticker import MultipleLocator fig, ax = plt.subplots() # Set the

Re: [Matplotlib-users] Time axis for imshow

x27;auto', origin='lower', > extent=[xmin, xmax, 0, z.shape[1]]) > > ax = plt.gca() > ax.xaxis.set_major_formatter(DateFormatter('%H:%M:%S')) > ax.xaxis.set_major_locator(SecondLocator(interval=30)) > ax.xaxis.set_minor_locator(SecondLocator(interval=5)) > > gives me bette

Re: [Matplotlib-users] Time axis for imshow

On Wed, Nov 9, 2011 at 11:45 PM, Gökhan Sever wrote: > Hello, > > Is there any easy way to specify a time-axis using imshow to plot 2D data? > > Sure, just call "ax.xaxis_date()" (or "yaxis_date", depending on which axis you want to represent a date). As a quick example: import matplotlib.pyplo

Re: [Matplotlib-users] Newbie question

On Wed, Nov 9, 2011 at 10:20 AM, Howard wrote: > On 11/9/11 11:13 AM, Joe Kington wrote: > > On Wed, Nov 9, 2011 at 10:07 AM, Howard wrote: > >> Hi all >> >> I'm a new user to matplotlib, and I'm having a little difficulty with >> something I

Re: [Matplotlib-users] Newbie question

On Wed, Nov 9, 2011 at 10:07 AM, Howard wrote: > Hi all > > I'm a new user to matplotlib, and I'm having a little difficulty with > something I feel must be basic. When I plot our data, I'm using a canvas > that is 4"x4" at 128 DPI and saving the canvas as a png. Here's the basics > of the code

Re: [Matplotlib-users] Ternary Plot

The link on Nabble is broken, so here's (I think) a fixed version. It looks like the name of the branch was changed slightly at some point. https://github.com/kdavies4/matplotlib/compare/master...ternary2 Cheers, -Joe On Thu, Nov 3, 2011 at 3:14 PM, Benjamin Root wrote: > > > On Thu, Nov 3,

Re: [Matplotlib-users] how to hide axes in a 3D plot

d. The axes are still not disappearing, nor do > they disappear when I interact with it (by rotating the plot). > > -- Matt > > > On Wed, Sep 7, 2011 at 3:21 PM, Benjamin Root wrote: > >> On Wed, Sep 7, 2011 at 2:14 PM, Joe Kington wrote: >> >>> This no lon

Re: [Matplotlib-users] Plotting in loop problem, not refreshing

Your code should work (and does on my system)... What backend, version of matplotlib, OS, etc are you running? On Sat, Jun 4, 2011 at 4:54 PM, Armin G wrote: > > Hi everyone , > > I know this has been posted several times now, But I could not understand > qietly why my simple code does not work

Re: [Matplotlib-users] Getting axis limits through ax.axis() turns off autoscaling. Confusing behavior?

Thanks! -Joe On Sun, May 15, 2011 at 12:50 AM, Eric Firing wrote: > On 05/14/2011 12:22 PM, Joe Kington wrote: > > Hi, > > > > When getting an axis's extents through "axis", the autoscaling state of > > the axis is turned off, regardless of the s

[Matplotlib-users] Getting axis limits through ax.axis() turns off autoscaling. Confusing behavior?

Hi, When getting an axis's extents through "axis", the autoscaling state of the axis is turned off, regardless of the state it was in before calling "ax.axis()" E.g. import matplotlib.pyplot as plt fig = plt.figure() ax = fig.add_subplot(111) print ax.get_autoscale_on() limits = ax.axis() print a

Re: [Matplotlib-users] Pixel shape

Actually, I think he's wanting a set aspect, right? Either way, it's just "aspect=1.5" or "aspect=0.6667" depending on the orientation he wants. On Mon, Apr 18, 2011 at 6:37 AM, Sebastian Berg wrote: > The solution is already the aspect='auto', ie: > > import numpy as np > from matplotlib import

Re: [Matplotlib-users] Auto-wrapping text within a plot... Is there a simpler solution?

For whatever it's worth, after a lot of wrangling, I think I solved most of my problems (though perhaps not in the most efficient way). In case anyone else is looking for similar functionality, here's a callback function that will autowrap text objects to the inside of the axis they're plotted in,

[Matplotlib-users] Auto-wrapping text within a plot... Is there a simpler solution?

Hi folks, First off, I apologize for the wall of text... Spurred on by this Stack Overflow question, and by an itch I've been wanting to scratch lately, I put together a a callback function that (attempts, anyway)

Re: [Matplotlib-users] How to find out the extend of the actual image in pixels

If you're just looking for the dimensions of the overall figure in pixels, you can easily access them through other means. E.g: import matplotlib.pyplot as plt fig = plt.figure() _, _, width, height = fig.bbox.extents # <- Extent of the figure in pixels fig.savefig('temp.png', dpi=fig.dpi) # <- Be

Re: [Matplotlib-users] sector colouring?

Have a look at fill_between: http://matplotlib.sourceforge.net/api/pyplot_api.html#matplotlib.pyplot.fill_between Basically, You'd want something like this: import matplotlib.pyplot as plt import numpy as np x = np.linspace(0, np.pi, 20) y = np.sin(x) plt.figure() plt.fill_between(x, y, where=y>0

Re: [Matplotlib-users] Adding a Legend

On Sun, Sep 19, 2010 at 10:40 PM, Kelson Zawack wrote: > Is there a way to put the legend for a graph inside the margin instead > of on the graph, in other words to put the legend where excel would? Look into either "figlegend

Re: [Matplotlib-users] Setting y-tick locations on an image plot changes y-axis limits, Bug or expected behavior?

Thanks for the amazingly quick turnaround! -Joe On Sat, Aug 21, 2010 at 1:34 PM, Eric Firing wrote: > On 08/20/2010 12:18 PM, Joe Kington wrote: > > Hi, > > > > I've recently noticed that setting the y-tick locations on an image plot > > changes the y-axis l

[Matplotlib-users] Setting y-tick locations on an image plot changes y-axis limits, Bug or expected behavior?

Hi, I've recently noticed that setting the y-tick locations on an image plot changes the y-axis limits, while changing the x-tick locations does not change the x-axis limits. I wouldn't have expected either to change the axis limits, but it seems quite inconsistent that the y-axis and x-axis beha

Re: [Matplotlib-users] Fit a plane to a set of xyz points

On Tue, Jul 27, 2010 at 1:37 PM, Friedrich Romstedt < friedrichromst...@gmail.com> wrote: > 2010/7/26 Mathew Yeates : > > Is there a simple function call for this? And finding the distance of > > a point to the plane? > > Hmm, when you are interested in the z distance alone, it should be a > matri

Re: [Matplotlib-users] Smooth contourplots

It sounds like you're wanting a gaussian kernel density estimate (KDE) (not the desktop!). The other options you mentioned are for interpolation, and are not at all what you're wanting to do. You can use scipy.stats.kde.gaussian_kde()

Re: [Matplotlib-users] extract country borders data & convert to shapefile

Ah, sorry I misunderstood. You can get them by using GMT's gshhs tool (or just using pscoast with the right options) to dump out the political borders in GMT format and then convert them to a shapefile using ogr2org (or whichever tool you find easiest... Personally I use the python wrappers around

Re: [Matplotlib-users] extract country borders data & convert to shapefile

If you just need the GSHHS data in shapefile format, it's available on the NOAA GSHHS website . If you prefer a direct link [96MB zip file]: http://www.ngdc.noaa.gov/mgg/shorelines/data/gshhs/version2.0/shapefiles/gshhs_shp_2.0.zip Hope that hel

Re: [Matplotlib-users] Reverse y-axis?

There's no single function to do it, but just reversing the current ylimits manually is a one-liner. ("plt" is "matplotlib.pyplot", here) plt.ylim(plt.ylim()[::-1]) Hope that helps, -Joe On Fri, Jun 25, 2010 at 6:41 AM, Preben Randhol wrote: > Hi > > I need to plot some data vs depth. In ste

Re: [Matplotlib-users] matplotlib and large array

One workaround is to try converting it to a PIL image first. For whatever reason, imshow chokes on large arrays, but handles PIL images of the same array just fine. However, you'll need to set the colormap and such through PIL, which can be a bit frustrating if you're unfamiliar with it. Also, y

Re: [Matplotlib-users] Plotting a vector in matplotlib

Isn't that what quiverdoes? Or am I misunderstanding the question? 2010/5/3 aditya bhargava > Thanks Johan and Matthias, > I was just wondering if there was a built-in way to do this in matplotlib. > It seems like it