matplotlib is inconsistent in its treatment of rcParams. Some have immediate side effects, others are cached during initialization and changing them later has no effect. This is a long standing problem, but not one with an easy solution, since the caching, particularly in the case of font lookup, is an important optimization.
Personally, I feel that rcParams should be primarily for environmental settings, and thus should not be updatable after initialization -- but that's only my opinion -- I have heard the opposite argued rather convincingly. In my opinion, it is the inconsistency between rcParams (or lack of documentation about when they are effective) that is worth addressing. In your particular case, there is an easy non-rcParam alternative -- just send text parameters to the title command. Mike Leo Trottier wrote: > Hi, > > Did anyone have any insight on this? Alternatively, anyone know why > there has been little uptake on this question ...(apologies that it > was accidentally sent twice)? > > Leo > > On Tue, Feb 3, 2009 at 11:42 PM, Leo Trottier <l...@cogsci.ucsd.edu > <mailto:l...@cogsci.ucsd.edu>> wrote: > > Matplotlib 0.98.5.2 > Location: C:\leo\.matplotlib > Running Windows XP SP2 > Obtained from pythonxy v. 2.1.10 > No rc customizations ... > > I've been having a devil of a time getting my rcParams to update > mid-script. Perhaps this isn't possible, but if that's so, it's > not entirely clear. Even if it is so, this is seemingly a defect, > because in an interactive session one expects quite different > behavior (and no amount of iPython %reset-ing seems to be able to > help). > > Note that manually setting the font (or what have you) in *title* > works fine. > > Here is some example code: > > ############## BEGIN ######### > import matplotlib > from matplotlib import rc, rcParams, rcdefaults > from matplotlib.pyplot import plot, show, figure, title > > print matplotlib.__version__ > print matplotlib.get_configdir() > print > print "rcParams['font.sans-serif']:", rcParams['font.sans-serif'] > print 'family is:', rcParams['font.family'] > print > figure(4) > title('This should be in a sans-serif font') > show() > > rcParams['font.sans-serif'] = rcParams['font.monospace'] > print "rcParams['font.sans-serif']:", rcParams['font.sans-serif'] > print 'family is:', rcParams['font.family'] > print > figure(1) > title('This should be in a monospace font') > show() > > rcParams['font.sans-serif'] = rcParams['font.serif'] > print "rcParams['font.sans-serif']:", rcParams['font.sans-serif'] > print 'family is:', rcParams['font.family'] > print > figure(2) > title('This should be in a serif font') > show() > > rcdefaults() > print "rcParams['font.sans-serif']:", rcParams['font.sans-serif'] > print 'family is:', rcParams['font.family'] > print > figure(3) > title('This should be back to a sans-serif font') > show() > ######### END #################### > > > ------------------------------------------------------------------------ > > ------------------------------------------------------------------------------ > Create and Deploy Rich Internet Apps outside the browser with Adobe(R)AIR(TM) > software. With Adobe AIR, Ajax developers can use existing skills and code to > build responsive, highly engaging applications that combine the power of local > resources and data with the reach of the web. Download the Adobe AIR SDK and > Ajax docs to start building applications today-http://p.sf.net/sfu/adobe-com > ------------------------------------------------------------------------ > > _______________________________________________ > Matplotlib-users mailing list > Matplotlib-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/matplotlib-users > -- Michael Droettboom Science Software Branch Operations and Engineering Division Space Telescope Science Institute Operated by AURA for NASA ------------------------------------------------------------------------------ Create and Deploy Rich Internet Apps outside the browser with Adobe(R)AIR(TM) software. With Adobe AIR, Ajax developers can use existing skills and code to build responsive, highly engaging applications that combine the power of local resources and data with the reach of the web. Download the Adobe AIR SDK and Ajax docs to start building applications today-http://p.sf.net/sfu/adobe-com _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
