python - 设置 matplotlib 颜色栏范围

Question

我想设置 matplotlib 颜色栏范围。到目前为止，这是我所拥有的:

import numpy as np
import matplotlib.pyplot as plt
x = np.arange(20)
y = np.arange(20)
data = x[:-1,None]+y[None,:-1]

fig = plt.gcf()
ax = fig.add_subplot(111)

X,Y = np.meshgrid(x,y)
quadmesh = ax.pcolormesh(X,Y,data)
plt.colorbar(quadmesh)

#RuntimeError: You must first define an image, eg with imshow
#plt.clim(vmin=0,vmax=15)  

#AttributeError: 'AxesSubplot' object has no attribute 'clim'
#ax.clim(vmin=0,vmax=15) 

#AttributeError: 'AxesSubplot' object has no attribute 'set_clim'
#ax.set_clim(vmin=0,vmax=15) 

plt.show()

如何在此处设置颜色条限制？

Answer 1

精氨酸。这总是你尝试的最后一件事:

quadmesh.set_clim(vmin=0, vmax=15)

有效。