问如何在python中将曲面和箭图合并到一个绘图中

EN

import numpy as np
import matplotlib.pyplot as plt
import grad_field
 # first create the plot of the elevation surface
fig, ax = plt.subplots(subplot_kw={"projection": "3d"})
LNG = np.linspace(lngmin,lngmax,samples1)
LAT = np.linspace(latmin,latmax, samples2)
X, Y = np.meshgrid(LNG,LAT)
ax.plot_surface(X, Y, elev_mat)
plt.show()
 
# now create the vector field plot of the gradients
[gradx,grady] = grad_field.grad_field(elev_mat)
fig1, ax1 = plt.subplots()
ax1.set_title('Arrows scale with plot width, not view')
ax1.quiver(X, Y, gradx, grady, units='xy' ,scale=2, color='red')
plt.show()