擅长:python、mysql、java
<p>下面是一个例子来说明我的建议-这是基于<a href="http://matplotlib.org/examples/images_contours_and_fields/pcolormesh_levels.html" rel="nofollow">this matplotlib example:</a></p>
<pre><code>import matplotlib.pyplot as plt
import numpy as np
# make these smaller to increase the resolution
dx, dy = 0.01, 0.01
# generate 2 2d grids for the x & y bounds
y, x = np.mgrid[slice(1, 5 + dy, dy),
slice(1, 5 + dx, dx)]
z = np.sin(x) ** 10 + np.cos(10 + y * x) * np.cos(x)
plt.contourf(x,y,z, 20, cmap = 'rainbow') #change these levels
plt.contour(x,y,z, 5, colors = 'k', linewidths = .25) #and here
plt.show()
</code></pre>