[SciPy-User] matplotlib: ticks at 0 and 2pi
Robert Kern
robert.kern@gmail....
Tue Apr 20 10:14:56 CDT 2010
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On Mon, Apr 19, 2010 at 16:10, Nikolaus Rath <Nikolaus@rath.org> wrote:
> Hello,
>
> I'm trying to plot something from 0 to 2pi:
>
> fig = plt.figure()
> ax = fig.add_subplot(111)
> ax.set_title('Radial Magnetic Field')
> ax.set_ylabel(r'Poloidal Angle $\theta$')
> ax.set_xlabel(r'Toroidal Angle $\phi$')
>
> ax.set_xticks([0, 2 * math.pi])
> ax.set_xticklabels(['0', r'$2\pi$'])
> ax.set_yticklabels([r'$-\pi$', r'$\pi$'])
> ax.set_yticks([-math.pi, math.pi])
>
> ax.set_xlim(xmin=0, xmax=2 * math.pi)
> ax.set_ylim(ymin= -math.pi, ymax=math.pi)
>
> But unfortunately the ticks for x=2pi and y=pi are not shown. They do
> show up if I move them a tiny bit:
>
> ax.set_xticks([0, 2 * math.pi * 0.98])
> ax.set_yticks([-math.pi, math.pi * 0.98])
>
> But obviously this is ugly.
>
> Is there a way to show the labels without moving the to the wrong
> position and without extending the axis limits (since that introduces a
> white border)?
>
> Best,
>
> -Nikolaus
>
> --
> »Time flies like an arrow, fruit flies like a Banana.«
>
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>
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--
Robert Kern
"I have come to believe that the whole world is an enigma, a harmless
enigma that is made terrible by our own mad attempt to interpret it as
though it had an underlying truth."
-- Umberto Eco
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