python - rio.plot.show 带颜色条？

Question

使用 rio.plot.show 后如何添加颜色条？
我尝试了很多东西，但遇到了各种错误

这是我尝试过的一种方法:

fig, ax = plt.subplots(figsize = (16, 16))

retted = rio.plot.show(ds, ax=ax, cmap='Greys_r')  

fig.colorbar(retted, ax=ax)
plt.title("Original")
plt.show()

这有错误:AttributeError: 'AxesSubplot' object has no attribute 'get_array'

Answer 1

我做了什么david上面建议，它奏效了!

fig, ax = plt.subplots(figsize=(5, 5))

# use imshow so that we have something to map the colorbar to
image_hidden = ax.imshow(image_data, 
                         cmap='Greys', 
                         vmin=-30, 
                         vmax=30)

# plot on the same axis with rio.plot.show
image = rio.plot.show(image_data, 
                      transform=src.transform, 
                      ax=ax, 
                      cmap='Greys', 
                      vmin=-30, 
                      vmax=30)

# add colorbar using the now hidden image
fig.colorbar(image_hidden, ax=ax)