擅长:python、mysql、java
<p>对于较低的值,比如'magma',可以得到一个<a href="http://matplotlib.org/users/colormaps.html" rel="nofollow noreferrer">colormap</a>带深色的值,并按照Andreas的建议定义一个'vmin'值。e、 g</p>
<pre><code>import matplotlib.pyplot as plt
from scipy import rand
a = rand(10, 20) + 0.5
a[0, 0] = 0
cmap = plt.get_cmap('magma')
img = plt.pcolormesh(a, cmap=cmap, vmin=0,)
img.figure.show()
</code></pre>
<p><a href="https://i.stack.imgur.com/ZXBPt.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/ZXBPt.png" alt="enter image description here"/></a></p>
<p>干杯!
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