Mailman 3 April 2017 - Matplotlib-devel

Data exploration tools when plotting
by Isaac Gerg May 3, 2017

May 3, 2017

Are there any plans to put in data exploration tools into plotting? For example, if I do a simple plt.plot(np.sin(np.linspace(0,2*np.pi), 100); plt.show(), putting a tool in the toolbar whereby I can click on a point and get its x,y value? Thanks, Isaac

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github reviews
by Thomas Caswell April 24, 2017

April 24, 2017

Folks, When leaving a review via the github API please leave a note so it is easier to tell if your concerns have been addressed or not. Tom

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phone call 2017-04-24
by Thomas Caswell April 24, 2017

April 24, 2017

Just myself and Eric Firing. Both of use were busy last week and had little to say. Merged https://github.com/matplotlib/matplotlib/pull/8440 I will try to get 2.0.1 tagged tonight or tomorrow. Tom

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phone call 2017-04-17
by Thomas Caswell April 17, 2017

April 17, 2017

Folks, On the call today were my self, efiring, anntzer, and phobson - mac osx - dpi issue - need a maintainer - side tangent about linux sub-system for windows - talked about enabling squash-merge - concern is it might confuse new users - but asking to rebase / doing it for them / force-pushing to their branches is just as bad - enable, but ask to use sparingly, maybe shift balance as we see how this works in practice - need to provide instruction on how to clean up to user - add 'do not PR from master' to template - discuss how to make supporting new user to learn git (Paul will add section of git FAQ that we can add to) - qt5 dpi issues - seems to work on linux, but toolbar icons are jaggy on mac - discarding part of the to 8440 fixes the issue on mac I'll be updating the devel docs and sending out a seperate email about squash-merge. Tom

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Is Matplotlib suitable for automatically rendering many charts per day?
by Dave Krinkel April 16, 2017

April 16, 2017

Hello, new subscriber here, and total Matploblib newbie. More accurately, I have not even attained newbie status as I haven't played with Matplotlib yet. I thought I would pick your collective brain to see if I am in the right place. I'm developing an application which will monitor daily electricity use for businesses. I need to render relatively simple charts (mainly area charts) every day, eventually thousands of them per day. They will not be interactive charts, in fact I need to render them as PNG's. I currently use SQL Server's Reporting Services to do this, but it is way too slow for the volumes I'm talking about. So I'm thinking of using Python and a chart library, which brought me to Matplotlib. As I said, the charts are not complicated, but I need precise control over dimensions, colors, axis labels, things like that. And most importantly, rendering must be fast. Thank you in advance for any suggestions/advice. Regards, Dave _____ Dave Krinkel dkrinkel(a)energyai.com <mailto:dkrinkel@energyai.com> Berkeley, CA | 510.847.6103 www.energyai.com <http://www.energyai.com/>

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phone call 2017-04-10
by Thomas Caswell April 10, 2017

April 10, 2017

Folks, Today was just myself and Eric Firing. We discussed how to handle high-dpi screens with qt5 on mac vs linux. Getting this sorted (at least enough to fix the zoom-box) is the last blocking issue for 2.0.1 https://github.com/matplotlib/matplotlib/pull/8440 Tom

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phone call notes 2017-04-03
by Thomas Caswell April 3, 2017

April 3, 2017

Folks, Just Eric Firing and my self. Most of discussion was on what is between use and 2.0.1 - pushed an extra commit to https://github.com/matplotlib/matplotlib/pull/8253 should be merged when passed - pushed https://github.com/matplotlib/matplotlib/issues/7977 out to 2.1 - decided not to block on https://github.com/matplotlib/matplotlib/pull/8300 The PR that created the cartopy issues was fixing a much bigger issue so well release 2.0.1 with a known issue. Not the best, but keeping the perfect from becoming the enemy of the good. Tom

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scipy 2017 sprints
by Thomas Caswell April 3, 2017

April 3, 2017

Folks, Who is planning to attend SciPy2017? (I am!). Any volunteers to take point an leading a sprint at SciPy2017? This year they are offering financial aid to for sprint leaders ( https://docs.google.com/forms/d/e/1FAIpQLSddm5Y9jfPG-DwLT9Pr3MV7PmIFB7DVr6W… ). Tom

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Re: [Matplotlib-devel] GSoC 2017: Layout Manager
by Hannah April 2, 2017

April 2, 2017

Please be more explicit in what is confusing you. Thank you On Mar 31, 2017 1:41 PM, "Kanchana Ranasinghe" <kahnchana(a)gmail.com> wrote: > Hi > > Thank you very much for the comments. Will change those. > > Also about scalarMappables. I read through the documentation > <http://matplotlib.org/api/cm_api.html> and also the code at > matplotlib.cm.ScalarMappable. Is this a wrong place I am looking at? Can > you explain a little bit about scalarMappables. I am confused about that. > > Thank you. > > With Regards > Kanchana Ranasinghe > > > On Fri, Mar 31, 2017 at 9:18 PM, Kanchana Ranasinghe <kahnchana(a)gmail.com> > wrote: > >> Hi >> >> I made a sample proposal. Could you let me know if it is okay? >> https://github.com/kahnchana/gsoc/blob/master/2017/proposals >> /ranasinghe-kanchana.md >> >> I still have to add some more details at the end. >> >> Thank you very much. >> >> >> With Regards >> Kanchana Ranasinghe >> >> >> On Fri, Mar 31, 2017 at 12:46 PM, Kanchana Ranasinghe < >> kahnchana(a)gmail.com> wrote: >> >>> Thank you very much. Yes I will first finish going through the colormap >>> and normalization documentation. And will write down what I plan to work >>> on. I am following the guide and also went through some previous NumFocus >>> proposals. Will follow those guidelines. >>> >>> About this project. I find this quite interesting and feel this would >>> fit me well. So I will work on this and share the proposal with you soon. >>> >>> Thank you. >>> >>> With Regards >>> Kanchana Ranasinghe >>> >>> >>> On Fri, Mar 31, 2017 at 12:31 AM, Kanchana Ranasinghe < >>> kahnchana(a)gmail.com> wrote: >>> >>>> Thank you very much. And extremely sorry for the delay on my side too. >>>> I was really lost and struggling with understanding everything. I did >>>> read through the example as well as most of your GSOC log last year. It was >>>> really helpful in getting a good grasp on everything. >>>> >>>> I understood the work done in axis ticks for categorical data. I also >>>> read through the open PR (#6934 >>>> <https://github.com/matplotlib/matplotlib/pull/6934>), and #6214 >>>> <https://github.com/matplotlib/matplotlib/issues/6214>. I still >>>> couldn't exactly understand what #6802 >>>> <https://github.com/matplotlib/matplotlib/issues/6802> is about >>>> though. I also went through #7383 >>>> <https://github.com/matplotlib/matplotlib/issues/7383> and am trying >>>> to work on that. Is this a good starting point for me? I still don't think >>>> have a great overall idea about everything. >>>> >>>> Also I am writing a proposal. I was thinking of going with your >>>> approach and extending categorical support for imshow. Is this a good idea >>>> for the project? Really sorry about all the small questions. I am somewhat >>>> new to opensource and finding it quite difficult. >>>> >>>> Thank you. >>>> >>>> With Regards >>>> Kanchana Ranasinghe >>>> >>>> >>>> On Mon, Mar 27, 2017 at 1:41 PM, Hannah <story645(a)gmail.com> wrote: >>>> >>>>> Sorry for being late on this, but essentially the categorical color >>>>> project is about building out support for this idea that strings can be as >>>>> much data as numbers and so you should be able to map them to colors just >>>>> as you can numerical data. The categorical project on github has an open PR >>>>> where I'm trying out one approach to tackle the problem, but there are >>>>> other approaches too. Here's an example of what I'm aiming for >>>>> http://story645.github.io/jekyll/update/2016/08/22/color.html >>>>> >>>>> Please feel free to ask questions. >>>>> >>>>> On Mar 25, 2017 12:56 AM, "Kanchana Ranasinghe" <kahnchana(a)gmail.com> >>>>> wrote: >>>>> >>>>>> Thanks so much. I did go through the issues. I will need to >>>>>> familiarize myself with the layout manager as well. I was also going >>>>>> through the categorical color project which seems interesting. Could you >>>>>> share something more about the 'categorical color' project? >>>>>> >>>>>> With Regards >>>>>> Kanchana Ranasinghe >>>>>> >>>>>> >>>>>> On Wed, Mar 22, 2017 at 11:21 PM, Hannah <story645(a)gmail.com> wrote: >>>>>> >>>>>>> I'd suggest looking through the geometry manager labels ( >>>>>>> https://github.com/matplotlib/matplotlib/issues?q=is%3Aopen >>>>>>> +is%3Aissue+label%3A%22geometry+manager%22), but hopefully a >>>>>>> developer more familiar with layout manager tasks can chime in. >>>>>>> >>>>>>> On Wed, Mar 22, 2017 at 5:11 AM, Kanchana Ranasinghe < >>>>>>> kahnchana(a)gmail.com> wrote: >>>>>>> >>>>>>>> Thank you very much. I did go through the issue tracker. Looking >>>>>>>> for related issues. I went through a few related to layouts and fonts. If >>>>>>>> you can guide me to any specific issues well related to this that would be >>>>>>>> really helpful. >>>>>>>> >>>>>>>> Thank you again. >>>>>>>> >>>>>>>> With Regards >>>>>>>> Kanchana Ranasinghe >>>>>>>> >>>>>>>> >>>>>>>> On Wed, Mar 22, 2017 at 7:39 AM, Hannah <story645(a)gmail.com> wrote: >>>>>>>> >>>>>>>>> Hi, please check out the issue tracker at >>>>>>>>> https://github.com/matplotlib/matplotlib/issues >>>>>>>>> >>>>>>>>> On Mon, Mar 20, 2017 at 11:45 PM, Kanchana Ranasinghe < >>>>>>>>> kahnchana(a)gmail.com> wrote: >>>>>>>>> >>>>>>>>>> Hi >>>>>>>>>> >>>>>>>>>> I'm an electronics and telecommunications engineering student >>>>>>>>>> from University Moratuwa, Sri Lanka. I am interested in the matplotlib >>>>>>>>>> project Layout Manager. >>>>>>>>>> >>>>>>>>>> I have done some work with python and am quite familiar with >>>>>>>>>> python and regular libraries like numpy, scipy. I have also been involved >>>>>>>>>> in some machine learning and computer vision related research at >>>>>>>>>> university, so I am familiar with contraint solvers as well as most common >>>>>>>>>> AI related algorithms. >>>>>>>>>> >>>>>>>>>> I am going through the Cassowary library for now. I couldn't find >>>>>>>>>> the issues on the mailing list related to this. Could you share with me the >>>>>>>>>> detailed expectations of this project? >>>>>>>>>> >>>>>>>>>> Also do let me know how else I can get involved for now. >>>>>>>>>> >>>>>>>>>> Thank you. >>>>>>>>>> >>>>>>>>>> With Regards >>>>>>>>>> Kanchana Ranasinghe >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> _______________________________________________ >>>>>>>>>> Matplotlib-devel mailing list >>>>>>>>>> Matplotlib-devel(a)python.org >>>>>>>>>> https://mail.python.org/mailman/listinfo/matplotlib-devel >>>>>>>>>> >>>>>>>>>> >>>>>>>>> >>>>>>>> >>>>>>> >>>>>> >>>> >>> >> >

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https issues with github pages
by Thomas Caswell April 1, 2017

April 1, 2017

See https://github.com/matplotlib/matplotlib/issues/8302 The https version of urls has started to appear in google search results. I have reached out to github support to see if there is anything they can do to ameliorate this. I personally know very little about how all of this works under the hood, is there anyone on here who does and will volunteer to take point on resolving this? Tom

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