Is there any particular reason that you have to use pcolor? My understanding is that the imshow is the fastest. Also, pcolormesh is much faster than pcolor if you use agg backend. Your script runs in a second on my linux box if I replace pcolor with pcolormesh.
-JJ On Mon, Apr 13, 2009 at 10:54 AM, Jim Vickroy <jim.vick...@noaa.gov> wrote: > Hello all, > > I am a matplotlib novice so I expect I am doing something inappropriate. > > >From the attached script (matplotlib-slow.py), it will be seen that I am > creating a 512x512 (numpy) array and using matplotlib to plot it. > > Below is the script output on my Microsoft Windows XP (service pack 3) box: > > <session> >>matplotlib-slow.py > [2009-04-13 08:40:34] [DEBUG ] [line # 23] Python version: 2.5.4 > (r254:67916, Dec 23 2008, 15:10:54) [MSC v.1310 32 bit (Intel)] > [2009-04-13 08:40:34] [DEBUG ] [line # 24] numpy version: 1.2.1 > [2009-04-13 08:40:34] [DEBUG ] [line # 25] matplotlib version: 0.98.5.2 > [2009-04-13 08:40:34] [DEBUG ] [line # 37] executing > matplotlib.pyplot.subplot() > [2009-04-13 08:40:34] [DEBUG ] [line # 39] executing > matplotlib.pyplot.pcolor() > [2009-04-13 08:41:12] [DEBUG ] [line # 41] executing > matplotlib.pyplot.colorbar() > [2009-04-13 08:41:12] [DEBUG ] [line # 45] executing > matplotlib.pyplot.savefig() > [2009-04-13 08:41:35] [DEBUG ] [line # 47] executing > matplotlib.pyplot.close() > </session> > > Note, the call to pcolor() and savefig() consume 38 and 13 seconds > respectively. My goal is to dramatically reduce these times (1 second or > less). > > I would appreciate your suggestions. > > Thanks, > -- jv > > ------------------------------------------------------------------------------ > This SF.net email is sponsored by: > High Quality Requirements in a Collaborative Environment. > Download a free trial of Rational Requirements Composer Now! > http://p.sf.net/sfu/www-ibm-com > _______________________________________________ > Matplotlib-users mailing list > Matplotlib-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/matplotlib-users > > ------------------------------------------------------------------------------ This SF.net email is sponsored by: High Quality Requirements in a Collaborative Environment. Download a free trial of Rational Requirements Composer Now! http://p.sf.net/sfu/www-ibm-com _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
