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
<<attachment: hatching-screenshot.png>>
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