HI all,
I wanted to help (for a change) but running the script on mac (with the multi
cursor code commented out), I got the following error. If anyone can figure out
why !
File "/Users/j35/anaconda/lib/python3.4/site-packages/matplotlib/widgets.py",
line 1046, in clear
self.canvas.copy_from_bbox(self.canvas.figure.bbox))
AttributeError: 'FigureCanvasMac' object has no attribute ‘copy_from_bbox'
I’m using python 3.4 and matplotlib 1.4.3
Thanks
Jean
> On Jan 20, 2016, at 1:26 PM, Michael Kaufman <[email protected]> wrote:
>
> Hi Gurus:
>
> I'm having a serious problem with MultiCursor and autoscaling...
>
> If I do the code below with both MultiCursor instantiations commented out,
> then all plots are xscaled to [50,55] and yscaled to each plot's appropriate
> ylimits.
>
> If I uncomment the top MultiCursor instantiation, then both the xlimits and
> ylimits are screwed up: xlim=[0,60] and ylim is all over the place, certainly
> not autoscaled tight.
>
> If I uncomment the bottom MultiCursor instantiation, then the xlimit appears
> to be scaled correctly, [50,55], but two of the four plots (lower left and
> upper right) are not autoscaled in y.
>
> How to I instantiate MultiCursor to get the normal and expected autoscaling
> behavior?
>
> Not that it should matter, but I'm using here Tk and Python3 with MPL 1.5dev1
> (91ca2a3724ae91d28d97)
>
> Thanks for any help,
>
> M
>
> =============
>
> from matplotlib import pyplot as pl
> from matplotlib.widgets import MultiCursor
> from matplotlib import gridspec
> import numpy as np
>
> if __name__ == "__main__":
>
> fig = pl.gcf()
> gs = gridspec.GridSpec(2,2)
>
> ax = None
> for g in gs:
> ax = pl.subplot(g, sharex=ax)
>
> #multi = MultiCursor(fig.canvas, tuple(fig.axes),
> # useblit=True, horizOn=True, color='k', lw=1)
>
> x = np.arange(50,55,0.01)
> y1 = np.sin(x)
> y2 = np.cos(x) + 4
> y3 = 0.2*np.cos(x) - 4
> y4 = np.cos(2*x) - 1
>
> for ax,y in zip(fig.axes, [y1,y2,y3,y4]):
> ax.plot(x,y)
>
> for ax in fig.axes:
> ax.grid()
>
> #multi = MultiCursor(fig.canvas, tuple(fig.axes),
> # useblit=True, horizOn=True, color='k', lw=1)
>
> pl.draw()
> pl.show()
> <multicursor_limtest.py>------------------------------------------------------------------------------
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