1 import numpy as np 2 import matplotlib.pyplot as plt 3 from mpl_toolkits.mplot3d import Axes3D # used for 3d plot 4 5 x = np.linspace(0,100,50) 6 y = np.linspace(0,100,50) 7 x,y = np.meshgrid(x,y) 8 z = x**2 + y**2 9 10 figure1 = plt.figure() # create a figure 11 ax = figure1.gca(projection='3d') # define figure as 3d 12 ax.scatter(x,y,z) # define the three axes 13 ax.set_xlabel('X index') 14 ax.set_ylabel('Y index') 15 ax.set_zlabel('Z index') 16 17 plt.savefig('fig1.png',format='png',dpi=100)