Mailman 3 July 2018 - Matplotlib-users

Un-align animations created with to_jshtml()?
by Matthias Geier July 29, 2018

July 29, 2018

Dear list. I love the feature to show animations as HTML with to_jshtml() and I'm using it in Jupyter notebooks, e.g. here: https://splines.readthedocs.io/bezier.html What I don't like, however, is that those animations are always centered, because the HTML template uses this line: <div class="animation" align="center"> See also https://github.com/matplotlib/matplotlib/blob/c552bdc116ad518d988461a28a2dd… I've tried to work against this forced center alignment by including this snippet in the notebook: <style>div.animation { width: fit-content; }</style> But I'm wondering: is there a better way? There must be a better way! I would like the animations left-aligned because the normal plots are also left-aligned. I'm also wondering: shouldn't the alignment be an optional setting? Furthermore, the "align" attribute of "div" elements is "obsolete" and "deprecated" according to https://developer.mozilla.org/en-US/docs/Web/HTML/Element/div Shouldn't the alignment probably be removed completely? If I'm using to_html5_video(), the animation isn't centered either, so this would be actually more consistent. cheers, Matthias

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add round corner for patches.Rectangle, not with FancyBboxPatch
by orange si July 26, 2018

July 26, 2018

hi everyone, I see the FancyBboxPatch can add round corner in https://matplotlib.org/gallery/shapes_and_collections/fancybox_demo.html , but that has some space between the rectangle and the fancybox. And I just want to add round corner instead of the sharp corner for Rectangle, not to expand the rectangle region. That confused me a few days, thanks for any help~ Best Regards Si

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mplcairo 0.1 release
by Antony Lee July 23, 2018

July 23, 2018

Dear all, I am pleased to announce the release of mplcairo 0.1 # Description mplcairo is a Matplotlib backend based on the well-known cairo library, supporting output to both raster (including interactively) and vector formats. In other words, it provides the functionality of Matplotlib's {,qt5,gtk3,wx,tk,macos}{agg,cairo}, pdf, ps, and svg backends. Per Matplotlib's standard API, the backend can be selected by calling matplotlib.use("module://mplcairo.qt") or setting your MPLBACKEND environment variable to `module://mplcairo.qt` for Qt5, and similarly for other toolkits. The source tarball, and Py3.6 manylinux and Windows wheels, are available on PyPI (I am looking for help to generate the OSX wheels). See the README for more details. # Why a new backend? Compared to Matplotlib's builtin Agg and cairo backends, mplcairo presents the following features: - Improved accuracy (e.g., with marker positioning, quad meshes, and text kerning). - Support for a wider variety of font formats, such as otf and pfb, for vector (PDF, PS, SVG) backends (Matplotlib's Agg backend also supports such fonts). - Optional support for complex text layout (right-to-left languages, etc.) using Raqm. **Note** that Raqm depends on Fribidi, which is licensed under the LGPLv2.1+. - Support for embedding URLs in PDF (but not SVG) output (requires cairo≥1.15.4). - Support for multi-page output both for PDF and PS (Matplotlib only supports multi-page PDF). - Support for custom blend modes (see `examples/operators.py`). See the README for more details. # Changelog from mplcairo 0.1a1 to mplcairo 0.1 - Integration with libraqm now occurs via dlopen() rather than being selected at compile-time. - Various rendering and performance improvements. - On Travis, we now run Matplotlib's test suite with mplcairo patching the default Agg renderer. Enjoy, Antony Lee

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Re: [Matplotlib-users] Matplotlib-users Digest, Vol 36, Issue 10
by Animatore. TRPS03000X July 22, 2018

July 22, 2018

Forgive me! I had not attacched the file. I am newiebie of the list Bste regards Marco 2018-07-21 18:00 GMT+02:00 <matplotlib-users-request(a)python.org>: > Send Matplotlib-users mailing list submissions to > matplotlib-users(a)python.org > > To subscribe or unsubscribe via the World Wide Web, visit > https://mail.python.org/mailman/listinfo/matplotlib-users > or, via email, send a message with subject or body 'help' to > matplotlib-users-request(a)python.org > > You can reach the person managing the list at > matplotlib-users-owner(a)python.org > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Matplotlib-users digest..." > > > Today's Topics: > > 1. Re: Matplotlib-users Digest, Vol 36, Issue 7 > (Animatore. TRPS03000X) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Fri, 20 Jul 2018 22:25:51 +0200 > From: "Animatore. TRPS03000X" <animatore.trps03000x(a)didasca.org> > To: matplotlib-users(a)python.org > Subject: Re: [Matplotlib-users] Matplotlib-users Digest, Vol 36, Issue > 7 > Message-ID: > <CACxvrmM-0W2-XSvz1X_-+ffmVX5TBqu1-MSrnxrGLPXsiSGdTQ@ > mail.gmail.com> > Content-Type: text/plain; charset="utf-8" > > Hello Tom! > > Thanks for your attention. I have installed Matplotlib with the > repositories of Ubuntu. > > > I solved the problem of Ubuntu 16 reinstalling MatPlotLib v.*1.4.3* > (downgrading?) token from the following link > https://sourceforge.net/projec > ts/matplotlib/files/matplotlib/matplotlib-1.4.3/ > > > With Ubuntu 18 the previous solution does not work and the version of > MatPlotLib remains v. *2.1.1*. > > > I have attached the file that I use for the graph with the motion sensor. > > > Thank you for your help in this matter, > > Marco > > > 2018-07-18 18:00 GMT+02:00 <matplotlib-users-request(a)python.org>: > > > Send Matplotlib-users mailing list submissions to > > matplotlib-users(a)python.org > > > > To subscribe or unsubscribe via the World Wide Web, visit > > https://mail.python.org/mailman/listinfo/matplotlib-users > > or, via email, send a message with subject or body 'help' to > > matplotlib-users-request(a)python.org > > > > You can reach the person managing the list at > > matplotlib-users-owner(a)python.org > > > > When replying, please edit your Subject line so it is more specific > > than "Re: Contents of Matplotlib-users digest..." > > > > > > Today's Topics: > > > > 1. custom fonts in matplotlib graphs (Matthew Bradley) > > 2. Re: read file with date and plot it (Diego Avesani) > > 3. Ubuntu 18 animation and Qt5Agg (Animatore. TRPS03000X) > > > > > > ---------------------------------------------------------------------- > > > > Message: 1 > > Date: Tue, 17 Jul 2018 12:44:39 -0600 > > From: Matthew Bradley <mbatr27(a)gmail.com> > > To: matplotlib-users(a)python.org > > Subject: [Matplotlib-users] custom fonts in matplotlib graphs > > Message-ID: > > <CAPXQNQU1LDjzkRLtza3X1GpJwdAfPTKC8u2jrmodTAzo3a+eng@mail. > > gmail.com> > > Content-Type: text/plain; charset="utf-8" > > > > Hi all: > > > > I?ve added a courier.ttf file to my font library and included the font in > > the matplotlibrc file in my site packages and rebuilt the cache file. I > > still get an error message that the font can?t be found and I can?t find > > any system or matplotlib cache files using the finder to delete them. > Have > > any of you encountered this problem? How can I get matplotlib to > recognize > > my new font. > > > > System information: > > Matplotlib 2.2.02 > > Mac OS El Capitan > > Python 3.6 > > And I have the .ttf file in both my system font library and in the > > matplotlib font library > > > > > > Thanks! > > > > -- > > Matthew Bradley > >

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Re: [Matplotlib-users] Matplotlib-users Digest, Vol 36, Issue 7
by Animatore. TRPS03000X July 20, 2018

July 20, 2018

Hello Tom! Thanks for your attention. I have installed Matplotlib with the repositories of Ubuntu. I solved the problem of Ubuntu 16 reinstalling MatPlotLib v.*1.4.3* (downgrading?) token from the following link https://sourceforge.net/projec ts/matplotlib/files/matplotlib/matplotlib-1.4.3/ With Ubuntu 18 the previous solution does not work and the version of MatPlotLib remains v. *2.1.1*. I have attached the file that I use for the graph with the motion sensor. Thank you for your help in this matter, Marco 2018-07-18 18:00 GMT+02:00 <matplotlib-users-request(a)python.org>: > Send Matplotlib-users mailing list submissions to > matplotlib-users(a)python.org > > To subscribe or unsubscribe via the World Wide Web, visit > https://mail.python.org/mailman/listinfo/matplotlib-users > or, via email, send a message with subject or body 'help' to > matplotlib-users-request(a)python.org > > You can reach the person managing the list at > matplotlib-users-owner(a)python.org > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Matplotlib-users digest..." > > > Today's Topics: > > 1. custom fonts in matplotlib graphs (Matthew Bradley) > 2. Re: read file with date and plot it (Diego Avesani) > 3. Ubuntu 18 animation and Qt5Agg (Animatore. TRPS03000X) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Tue, 17 Jul 2018 12:44:39 -0600 > From: Matthew Bradley <mbatr27(a)gmail.com> > To: matplotlib-users(a)python.org > Subject: [Matplotlib-users] custom fonts in matplotlib graphs > Message-ID: > <CAPXQNQU1LDjzkRLtza3X1GpJwdAfPTKC8u2jrmodTAzo3a+eng@mail. > gmail.com> > Content-Type: text/plain; charset="utf-8" > > Hi all: > > I?ve added a courier.ttf file to my font library and included the font in > the matplotlibrc file in my site packages and rebuilt the cache file. I > still get an error message that the font can?t be found and I can?t find > any system or matplotlib cache files using the finder to delete them. Have > any of you encountered this problem? How can I get matplotlib to recognize > my new font. > > System information: > Matplotlib 2.2.02 > Mac OS El Capitan > Python 3.6 > And I have the .ttf file in both my system font library and in the > matplotlib font library > > > Thanks! > > -- > Matthew Bradley >

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custom fonts in matplotlib graphs
by Matthew Bradley July 19, 2018

July 19, 2018

Hi all: I’ve added a courier.ttf file to my font library and included the font in the matplotlibrc file in my site packages and rebuilt the cache file. I still get an error message that the font can’t be found and I can’t find any system or matplotlib cache files using the finder to delete them. Have any of you encountered this problem? How can I get matplotlib to recognize my new font. System information: Matplotlib 2.2.02 Mac OS El Capitan Python 3.6 And I have the .ttf file in both my system font library and in the matplotlib font library Thanks! -- Matthew Bradley

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Ubuntu 18 animation and Qt5Agg
by Animatore. TRPS03000X July 19, 2018

July 19, 2018

Hi! My name is Marco, I am a math and pyhs teacher in an High School in Terni (130 km far from Rome). In 2015, I and my students made an Open Physics Lab using open hardware (Arduino, sensors) and Open software (Ubuntu 14, MatPlotLib and GeoGebra etc.). You can watch the Laboratory working with distance sensor if you play this video https://www.youtube.com/watch? v=fuEjOx7tkwU. In 2016 we had a problem with Ubuntu 16 LTS, MatPlotLib did not work as well as before: the window and the graph were ok but, finished plotting, the graph was not shown after zooming (like a loss of data). We solved doing the steps that you can read at the link below: http://marcocalvaniatm. altervista.org/blog/wp-content/uploads/2017/12/open_phys.pdf. Now with Ubuntu 18 LTS the problem came up again: the buttons work but no graph is shown after zooming or go back, the save button is ok. The solution that we found before is not working now and we do not know what to do. Can anybody help us? Thanks a bunch for your time spent and your attention Marco Calvani

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Matplotlib - why scatter plot markers are stretched?
by Gopi1616 July 19, 2018

July 19, 2018

I was creating scatter plot using matplotlib with python2.7 script and it worked totally fine. I then upgraded my python script from python2.7 to 3.6 now and the markers in the plot are stretched, not sure why this is happening. Please help me with this. <http://matplotlib.1069221.n5.nabble.com/file/t5171/comparison.png> Data: table1.index freq_table1['VarFreq'] 1 0.2 2 0.4 3 0.7 4 1.0 Code: fig = plt.figure(figsize=(20,16)) ax1 = fig.add_subplot(1,1,1) ax1.scatter(table1.index, table1['VarFreq'], color='r', label=VCF1_legend, marker="*") ax1.scatter(table2.index, table2['VarFreq'], color='blue', label=VCF2_legend, marker="+") plt.legend(loc='upper right') ax1.set_title('VarFreq correlation, fontsize=20) plt.savefig('WESPP_frequency_comparison.png', dpi=600 ) -- Sent from: http://matplotlib.1069221.n5.nabble.com/matplotlib-users-f3.html

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Eclipse PyDev rcParams
by FIL_LTP89 July 19, 2018

July 19, 2018

I am currently developing a code by exploiting Eclipse PyDev.Whenever I run the code in Debug mode, I get the following error:backend = matplotlib.rcParams['backend']AttributeError: 'module' object has no attribute 'rcParams'I got matplotlib version 1.4.3, and the code features the following lines:import matplotlib as mplmpl.use("Qt4Agg")from mpl_toolkits.basemap import Basemapimport matplotlib.pyplot as pltimport matplotlib.cm as cmimport matplotlib.colors as colorsfrom matplotlib.mlab import griddataFinally, I use PyQt4 as QtThreads and I connected a console to the debug session and enabled GUI event loop integration with pyside/qt4.Any clue on how to solve this isse?ThanksFilippo -- Sent from: http://matplotlib.1069221.n5.nabble.com/matplotlib-users-f3.html

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read file with date and plot it
by diedro July 17, 2018

July 17, 2018

Dear all, I have created with fortran the following file: / 2013:01:02-01,-999.0000, 1.0000000E+00,1.0000000E+00 2013:01:02-02,-999.0000, 2.0000000E+00,0.0000000E+00 2013:01:02-03,-999.0000, 3.0000000E+00,2.0000000E+00 2013:01:02-04,-999.0000, 4.0000000E+00,0.0000000E+00 2013:01:02-05,-999.0000, 5.0000000E+00,3.0000000E+00/ .... I would like to read it and to plot data according to date so far this is what I do: /folder = 'meteo_stations' fname = 'stations_pp.txt' headers = ['date','dato1','dato2','dato3'] df = pd.read_csv('./'+folder+'/'+fname,) df.plot(x='date',y='dato2',)/ unfortunately, I get an error? what shall I do? Thanks for any kind of helps, Best regards -- Sent from: http://matplotlib.1069221.n5.nabble.com/matplotlib-users-f3.html

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