Thanks, that was helpful. On Sunday 16 May 2010 02:23:02 pm Eric Firing wrote: > On 05/16/2010 10:19 AM, Philipp K. Janert wrote: > > Let's say I am running an interactive session > > (ipython -pylab), and now issue the following > > commands: > > > > x = linspace(0, 10, 100 ) > > plot( x, sin(x) ) > > ylim( -2, 2 ) > > plot( x, cos(x) ) > > > > Then the second plot command seems to reset > > the plot limits to [-1,1] - which makes sense for > > the figure, but is not what I requested. > > > > Is this behavior intended? It seems odd to me, > > since generally matplotlib seems to retain state > > that has between invocations of plot(). > > Good question. The control of autoscaling has a somewhat clunky > interface via Axes methods, and via the plot function. Your two options > are to follow the ylim call with the ugly > > gca().set_autoscaley_on(False) > > or to add a kwarg to all subsequent plot calls: > > plot(x, cos(x), scaley=False) > > A possible mpl improvement would be to add a kwarg to the pyplot.ylim > and xlim functions, e.g. > > ylim(-2, 2, keep=True) > > Calling the kwarg "hold" would read better to my eye, but would conflict > with the use of "hold" to mean "keep all prior plot elements". Maybe > there is a better name, e.g. setting "auto=False" to mean "don't > autoscale this on the next plot command". Or "save=True". I suspect we > would have to leave the default behavior as it is for continuity and > backwards compatibility, although I think that changing it would be an > improvement overall. > > Eric > > > --------------------------------------------------------------------------- >--- > > _______________________________________________ > Matplotlib-users mailing list > Matplotlib-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/matplotlib-users
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