注意
前往末尾下载完整的示例代码。
默认属性循环中的颜色#
显示来自默认 prop_cycle 的颜色，该颜色从 rc 参数 中获得。
import matplotlib.pyplot as plt
import numpy as np
from matplotlib.colors import TABLEAU_COLORS, same_color
def f(x, a):
"""A nice sigmoid-like parametrized curve, ending approximately at *a*."""
return 0.85 * a * (1 / (1 + np.exp(-x)) + 0.2)
fig, ax = plt.subplots()
ax.axis('off')
ax.set_title("Colors in the default property cycle")
prop_cycle = plt.rcParams['axes.prop_cycle']
colors = prop_cycle.by_key()['color']
x = np.linspace(-4, 4, 200)
for i, (color, color_name) in enumerate(zip(colors, TABLEAU_COLORS)):
assert same_color(color, color_name)
pos = 4.5 - i
ax.plot(x, f(x, pos))
ax.text(4.2, pos, f"'C{i}': '{color_name}'", color=color, va="center")
ax.bar(9, 1, width=1.5, bottom=pos-0.5)
plt.show()
参考
此示例中显示了以下函数、方法、类和模块的使用