Re: [sugar] Matplotlib vs PyCha
On Thu, 2008-02-07 at 02:20 -0500, Arjun Sarwal wrote: Hi, In continuation with my previous email[1] in which I had mentioned that I was looking for python packages that would enable me to do graphing/plotting of data in various formats. I searched through a series of packages. One that I really liked was gtksheet (or gtkextra?)[2] which had various plotting functions (and also a spreadsheet like interface, which I would eventually need) but there hasn't been any development on that since a long time and that package depends pygtk1 and python 2.4 so it seems I can't use it. Seems like gtkextra has continued to be developed and was ported to gtk2. It is also packaged in F7: http://koji.fedoraproject.org/koji/packageinfo?packageID=1987 But I think that doesn't include python bindings :/ If you decided to try, wrapping gtk widgets with pygtk uses to be quite straightforward. You could base those bindings on http://python-gtkextra.cvs.sourceforge.net/python-gtkextra/python-gtkextra2/ I'm not sure we want this lib in the platform, so you would have to include all these pieces inside your activity bundle. Tomeu ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: [sugar] Matplotlib vs PyCha
Hi Arjun, I think Matplotlib would be the best choice taking in count that we probably want to work analysing bio-signals, i see that Matplotlib has splendid examples like mri_with_eeg.pyhttp://matplotlib.sourceforge.net/screenshots/mri_with_eeg.pyand eeg.py http://matplotlib.sourceforge.net/screenshots/eeg.py So we have a nice framework to begin with. Also without knowing too much about it, the problem about the large size could be worked out as you suggested. cheers! On Feb 7, 2008 2:20 AM, Arjun Sarwal [EMAIL PROTECTED] wrote: Hi, In continuation with my previous email[1] in which I had mentioned that I was looking for python packages that would enable me to do graphing/plotting of data in various formats. I searched through a series of packages. One that I really liked was gtksheet (or gtkextra?)[2] which had various plotting functions (and also a spreadsheet like interface, which I would eventually need) but there hasn't been any development on that since a long time and that package depends pygtk1 and python 2.4 so it seems I can't use it. After searching through more packages it seems to me that I have two options -- (A) PyCha [3] Pros * Very small package - 30KB. Just need to include these few python files [4] Cons * Very limited types of representations - just line, bar and pie chart * For displaying it within a gtk window one needs to do some hackish stuff. like making a cairo surface and cairo context and copying the surface from within the python modules to the main program etc. (B) Matplotlib [5] Pros * A __huge__ variety of display methods a large number of graphs, and a large number of built in mathematical functions * A large community develops on and/or around it. Quite well known. * There is a well defined and supported method for embedding it in gtk Cons * Large size. Just the rpm is about 5MB. It requires python-dateutils and pytz. The pytz rpm is another about 6MB I am veering towards Matplotlib because it has some really amazing functionality (see the screenshots page[4]) The solution to the large size could be that we fork the upstream package by removing certain parts that we don't require. There are things that we don't need. For example in the rpm that I downloaded I noticed that we could remove the examples and also remove support for other backends (just keep the gtk backend support) Please give comments/feedback/suggestions that would help set a direction for development. thanks Arjun [1] http://lists.laptop.org/pipermail/sugar/2008-January/004211.html [2] http://gtkextra.sourceforge.net/ [3] http://www.lorenzogil.com/projects/pycha/#Documentation [4] http://www.lorenzogil.com/projects/pycha/browser/trunk/src [5] http://matplotlib.sourceforge.net/screenshots.html ___ Sugar mailing list [EMAIL PROTECTED] http://lists.laptop.org/listinfo/sugar -- Rafael Enrique Ortiz Guerrero One Laptop Per Child [EMAIL PROTECTED] ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: [sugar] Matplotlib vs PyCha
Interestingly pytz is actually just 600kB and not 6MB! It is wrongly written here :) http://rpm.pbone.net/index.php3/stat/4/idpl/5320110/com/pytz-2006p-2.fc7.noarch.rpm.html So on the disk, after installation of python-matplotlib and pytz, the total extra space taken was 7MB, The examples are about 1.5MB in matplotlib, so taking those out should further reduce things by 1.5MB Arjun On Feb 7, 2008 11:05 AM, Tomeu Vizoso [EMAIL PROTECTED] wrote: On Thu, 2008-02-07 at 02:20 -0500, Arjun Sarwal wrote: Hi, In continuation with my previous email[1] in which I had mentioned that I was looking for python packages that would enable me to do graphing/plotting of data in various formats. I searched through a series of packages. One that I really liked was gtksheet (or gtkextra?)[2] which had various plotting functions (and also a spreadsheet like interface, which I would eventually need) but there hasn't been any development on that since a long time and that package depends pygtk1 and python 2.4 so it seems I can't use it. Seems like gtkextra has continued to be developed and was ported to gtk2. It is also packaged in F7: http://koji.fedoraproject.org/koji/packageinfo?packageID=1987 But I think that doesn't include python bindings :/ If you decided to try, wrapping gtk widgets with pygtk uses to be quite straightforward. You could base those bindings on http://python-gtkextra.cvs.sourceforge.net/python-gtkextra/python-gtkextra2/ I'm not sure we want this lib in the platform, so you would have to include all these pieces inside your activity bundle. Tomeu ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
