标记参考
使用Matplotlib参考填充，未填充和自定义标记类型。
有关所有标记的列表，请参阅 matplotlib.markers 文档。 另请参阅 标记填充样式 和 标记路径示例。
import numpy as np
import matplotlib.pyplot as plt
from matplotlib.lines import Line2D
points = np.ones(3) # Draw 3 points for each line
text_style = dict(horizontalalignment='right', verticalalignment='center',
fontsize=12, fontdict={'family': 'monospace'})
marker_style = dict(linestyle=':', color='0.8', markersize=10,
mfc="C0", mec="C0")
def format_axes(ax):
ax.margins(0.2)
ax.set_axis_off()
ax.invert_yaxis()
def nice_repr(text):
return repr(text).lstrip('u')
def math_repr(text):
tx = repr(text).lstrip('u').strip("'").strip("$")
return r"'\${}\$'".format(tx)
def split_list(a_list):
i_half = len(a_list) // 2
return (a_list[:i_half], a_list[i_half:])
填充和未填充标记类型
绘制所有未填充的标记
fig, axes = plt.subplots(ncols=2)
fig.suptitle('un-filled markers', fontsize=14)
# Filter out filled markers and marker settings that do nothing.
unfilled_markers = [m for m, func in Line2D.markers.items()
if func != 'nothing' and m not in Line2D.filled_markers]
for ax, markers in zip(axes, split_list(unfilled_markers)):
for y, marker in enumerate(markers):
ax.text(-0.5, y, nice_repr(marker), **text_style)
ax.plot(y * points, marker=marker, **marker_style)
format_axes(ax)
plt.show()
绘制所有填满的标记。
fig, axes = plt.subplots(ncols=2)
for ax, markers in zip(axes, split_list(Line2D.filled_markers)):
for y, marker in enumerate(markers):
ax.text(-0.5, y, nice_repr(marker), **text_style)
ax.plot(y * points, marker=marker, **marker_style)
format_axes(ax)
fig.suptitle('filled markers', fontsize=14)
plt.show()
带有MathText的自定义标记
使用MathText，使用自定义标记符号，例如“$$ u266B”。有关STIX字体符号的概述，请参阅STIX字体表。另请参阅STIX字体演示。
fig, ax = plt.subplots()
fig.subplots_adjust(left=0.4)
marker_style.update(mec="None", markersize=15)
markers = ["$1$", r"$\frac{1}{2}$", "$f$", "$\u266B$",
r"$\mathcircled{m}$"]
for y, marker in enumerate(markers):
ax.text(-0.5, y, math_repr(marker), **text_style)
ax.plot(y * points, marker=marker, **marker_style)
format_axes(ax)
plt.show()
