# 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()

未填充标记图示

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()

已填充充标记图示

# 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()

带有MathText的自定义标记图示

# 下载这个示例