On Wed, Dec 15, 2010 at 9:47 AM, Benjamin Root <ben.r...@ou.edu> wrote:
> On Wed, Dec 15, 2010 at 6:25 AM, Teng Liu <lewtonst...@gmail.com> wrote:
>
>> Linux 2.6.32-25-generic #45-Ubuntu SMP Sat Oct 16 19:48:22 UTC 2010 i686
>> GNU/Linux
>> matplotlib 0.99.1.1
>> The script below is copied from
>> http://matplotlib.sourceforge.net/examples/pylab_examples/hatch_demo.html
>> It works. But it can not be saved as an eps file.
>> I have a lot of histogram plots using "hatch" needed to be saved as eps,
>> is it possible to fix this bug?
>> Thanks.
>>
>> """
>>
>>
>> Hatching (pattern filled polygons) is supported currently in the PS,
>> PDF, SVG and Agg backends only.
>> """
>> import matplotlib.pyplot as plt
>>
>>
>> from matplotlib.patches import Ellipse, Polygon
>>
>> fig = plt.figure()
>>
>>
>> ax1 = fig.add_subplot(131)
>> ax1.bar(range(1,5), range(1,5), color='red', edgecolor='black', hatch="/")
>>
>>
>> ax1.bar(range(1,5), [6] * 4, bottom=range(1,5), color='blue',
>> edgecolor='black', hatch='//')
>>
>>
>> ax1.set_xticks([1.5,2.5,3.5,4.5])
>>
>> ax2 = fig.add_subplot(132)
>> bars = ax2.bar(range(1,5), range(1,5), color='yellow', ecolor='black') + \
>>
>>
>>
>> ax2.bar(range(1, 5), [6] * 4, bottom=range(1,5), color='green',
>> ecolor='black')
>>
>>
>> ax2.set_xticks([1.5,2.5,3.5,4.5])
>>
>> patterns = ('-', '+', 'x', '\\', '*', 'o', 'O', '.')
>>
>>
>> for bar, pattern in zip(bars, patterns):
>>
>> bar.set_hatch(pattern)
>>
>> ax3 = fig.add_subplot(133)
>>
>>
>> ax3.fill([1,3,3,1],[1,1,2,2], fill=False, hatch='\\')
>>
>>
>> ax3.add_patch(Ellipse((4,1.5), 4, 0.5, fill=False, hatch='*'))
>>
>>
>> ax3.add_patch(Polygon([[0,0],[4,1.1],[6,2.5],[2,1.4]], closed=True,
>>
>>
>>
>> fill=False, hatch='/'))
>> ax3.set_xlim((0,6))
>> ax3.set_ylim((0,2.5))
>>
>>
>>
>> plt.show()
>>
>>
>> I was able to run this script and save the eps file just fine. However,
> the resulting image is completely wrong. I have attached a screenshot of
> the eps file as viewed in evince. Essentially, all of the hatching elements
> are not at all what they are supposed to be.
>
> Ben Root
>
>
I am re-pinging this issue. Could it be a path simplification issue?
Ben Root
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