Imshow 详细说明

演示 imshow 和图形样式的示例。

import numpy as np
import matplotlib.pyplot as plt


def f(x, y):
    return (1 - x / 2 + x**5 + y**3) * np.exp(-(x**2) - y**2)


n = 10
x = np.linspace(-3, 3, int(3.5 * n))
y = np.linspace(-3, 3, int(3.0 * n))
X, Y = np.meshgrid(x, y)
Z = f(X, Y)

plt.axes((0.025, 0.025, 0.95, 0.95))
plt.imshow(Z, interpolation="nearest", cmap="bone", origin="lower")
plt.colorbar(shrink=0.92)

plt.xticks([])
plt.yticks([])
plt.show()