由于我需要在一个图中绘制多条曲线,因此我需要许多不同类型的标记。有时默认标记的数量不够,所以如果用户可以自定义标记类型会很好。
根据文档页面(http://matplotlib.sourceforge.net/api/artist_api.html#matplotlib.lines.Line2D.set_marker),可以使用 mathtext 作为标记。但是,它在我的情况下不起作用。
plot(x, y, marker='$||$') # To use two vertical lines as the marker.
错误信息是这样的:
File "/usr/lib/pymodules/python2.6/matplotlib/axes.py", line 3432, in plot
for line in self._get_lines(*args, **kwargs):
File "/usr/lib/pymodules/python2.6/matplotlib/axes.py", line 311, in _grab_next_args
for seg in self._plot_args(remaining, kwargs):
File "/usr/lib/pymodules/python2.6/matplotlib/axes.py", line 298, in _plot_args
seg = func(x[:,j%ncx], y[:,j%ncy], kw, kwargs)
File "/usr/lib/pymodules/python2.6/matplotlib/axes.py", line 248, in _makeline
self.set_lineprops(seg, **kwargs)
File "/usr/lib/pymodules/python2.6/matplotlib/axes.py", line 191, in set_lineprops
func(val)
File "/usr/lib/pymodules/python2.6/matplotlib/lines.py", line 804, in set_marker
self._markerFunc = self._markers[marker]
KeyError: '$||$'
matplotlib 版本是:
matplotlib.__version__
'0.99.1.1'
我也试过plot(x, y, marker=r'$||$')
了,也不管用。