Re: [matplotlib-devel] colorbar edges in white for PDF output

[Michael D. <md...@st...>]

I've filed an issue for this here:

https://github.com/matplotlib/matplotlib/issues/1444

Mike

On 10/31/2012 12:20 PM, Andrew Dawson wrote:
> Hi all,
>
> I just noticed that colorbar edges are drawn in white when output in 
> PDF and black when output in PNG. A small test script is attached 
> along with the output to show the difference.
>
> I'd be interested in knowing if others can reproduce this? I'm using 
> mpl-1.3.x (updated 5 minutes ago) on 64-bit Ubuntu 12.04.
>
> Cheers,
> Andrew
>
> bug.py
>
>
> import matplotlib.pyplot as plt
> import numpy as np
>
> # dummy data
> x = y = np.linspace(-np.pi, np.pi, 50)
> X, Y = np.meshgrid(x, y)
> Z = np.sin(X) * np.cos(2.*Y)
>
> # draw a filled contour plot and add a colorbar with drawedges turned on
> contours = plt.contourf(x, y, Z)
> cb = plt.colorbar(orientation='horizontal', drawedges=True)
>
> # turn off tick marks so the edges can be seen
> for tick in cb.ax.get_xticklines() + cb.ax.get_yticklines():
>      tick.set_visible(False)
>
> # save as a PDF and a PNG
> plt.savefig('test.pdf')
> plt.savefig('test.png')
>