7:20 AM, kcrisman wrote: > > >>> On Jan 28, 9:52 am, "D. S. McNeil"<dsm...@gmail.com> wrote: > >>>> On Fri, Jan 28, 2011 at 9:08 PM, Jeff wrote: > >>>>> I would like to be able to plot a function, e.g. plot(sin), that has > >>>>> axes and ticks on the axes but that does not have labels for the > >>>>> ticks. I understand that I might be able to do this using a ticker > >>>>> formatter, perhaps also, by directly using matplotlib, but I do not > >>>>> know exactly how to go about doing this. > > >>>> There may be a simpler way, but: > > >>>> import matplotlib > > >>>> p = plot(sin) > >>>> p.show(tick_formatter=(matplotlib.ticker.NullFormatter(), > >>>> matplotlib.ticker.NullFormatter())) > > >>>> worked for me. The repetition is to make sure that both x and y tick > >>>> labels are turned off. > > >>> Yes, if you look > >>> athttp://www.sagemath.org/doc/reference/sage/plot/plot.html > >>> and search for tick_formatter, you will see documentation for this. > > >>> Do you think it would be worth having the null formatter as a > >>> specified option? The string "null" could easily have the default be > >>> the null formatter - that would be easy to add. > > >> I think the string 'none' might be a better fit for matplotlib > >> conventions, for what it's worth. > > > But the Python None is already reserved for the default formatter, > > which I suppose makes sense since 'no formatting' means 'no special > > formatting' to most of us... while null is special. So with 'none' > > versus None I see a lot of potential for confusion. Or? > > Yes, I do see a possibly confusing point. Advantages are: > > 1. once people realize that None means default, then the confusion is > lessened. > > 2. 'none' works for colors and the like since that's the matplotlib > convention. > > Actually, (2) doesn't work in Sage, since apparently to_mpl_color > doesn't recognize 'none'. That's a bug in my opinion, as there is no > way to, say, draw a circle with a fill but no surrounding edge. > > I'd say 'null' is less intuitive than 'none' (again, once the user > realizes that None actually means default).
Sounds like this will be useful, anyway. Can you open a ticket where we can discuss this further? Maybe we can support both options... Thanks for raising this point, Jeff! - kcrisman -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
