Python matplotlib模块是扩展的MATLAB的一个绘图工具库。它可以绘制各种图形,下面就学习了下Python中的matplotlib模块,如何绘制三维图形。
示例代码一:
# coding=utf-8import numpy as npimport matplotlib.pyplot as pltimport mpl_toolkits.mplot3da,b = np.mgrid[-2:2:20j,-2:2:20j]#测试数据c=a*np.exp(-a**2-b**2)#三维图形ax = plt.subplot(111, projection='3d')ax.set_title(' - matplotlib Code Demo');ax.plot_surface(a,b,c,rstride=2, cstride=1, cmap=plt.cm.Spectral)#设置坐标轴标签ax.set_xlabel('A')ax.set_ylabel('B')ax.set_zlabel('C')plt.show()
运行结果:
示例代码二:
# coding=utf-8import pylab as plimport numpy as npimport mpl_toolkits.mplot3drho, theta = np.mgrid[0:1:40j,0:2*np.pi:40j]c = rho**2a = rho*np.cos(theta)b = rho*np.sin(theta)ax = pl.subplot(111, projection='3d')ax.set_title(' - matplotlib Code Demo');#ax.plot_surface(a,b,c)ax.plot_surface(a,b,c,rstride=2, cstride=1)#设置坐标轴标签ax.set_xlabel('A')ax.set_ylabel('B')ax.set_zlabel('C')pl.show()
运行结果:
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