update

2020.12.23_plot_with_matplotlib/plot_3D_surface.py

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+import numpy as np
+# import os
+# os.chdir('D:/data')  # 设置文件保存的位置
+
+
+def main():
+    x = np.arange(-5, 5, 0.25)
+    y = np.arange(-5, 5, 0.25)
+    X, Y = np.meshgrid(x, y)
+    R = np.sqrt(X**2 + Y**2)
+    Z = np.sin(R)
+    Plot_3D_Surface(x,y,Z)
+
+
+def Plot_3D_Surface(x,y,matrix,filename='a.jpg', titlename='Plot 3D Surface'):
+    import matplotlib.pyplot as plt
+    from matplotlib import cm
+    from matplotlib.ticker import LinearLocator
+    fig, ax = plt.subplots(subplot_kw={"projection": "3d"})
+    plt.subplots_adjust(bottom=0.1, right=0.65)  # 调整位置
+    x, y = np.meshgrid(x, y)
+    surf = ax.plot_surface(x, y, matrix, cmap=cm.coolwarm, linewidth=0, antialiased=False)  # Plot the surface.
+    ax.set_title(titlename, fontsize=20, fontfamily='Times New Roman')
+    ax.set_xlabel('x', fontsize=30, fontfamily='Times New Roman') # 坐标标签
+    ax.set_ylabel('y', fontsize=30, fontfamily='Times New Roman') # 坐标标签
+    ax.set_zlabel('z', fontsize=30, fontfamily='Times New Roman') # 坐标标签
+    # ax.set_zlim(-1, 1)  # 设置z轴的范围
+    ax.zaxis.set_major_locator(LinearLocator(5)) # 设置z轴主刻度的个数
+    ax.zaxis.set_major_formatter('{x:.2f}')   # 设置z轴主刻度的格式
+    ax.tick_params(labelsize=15)  # 设置刻度值字体大小
+    labels = ax.get_xticklabels() + ax.get_yticklabels() + ax.get_zticklabels()
+    [label.set_fontname('Times New Roman') for label in labels] # 设置刻度值字体
+    cax = plt.axes([0.75, 0.15, 0.05, 0.75]) # color bar的位置 [左，下，宽度， 高度]
+    cbar = fig.colorbar(surf, cax=cax)  # color bar
+    cbar.ax.tick_params(labelsize=15) # 设置color bar刻度的字体大小
+    [l.set_family('Times New Roman') for l in cbar.ax.yaxis.get_ticklabels()] # 设置color bar刻度的字体
+    # plt.savefig(filename, dpi=800) # 保存图片文件
+    plt.show()
+    plt.close('all')  # 关闭所有plt，防止循环画图时占用内存
+
+
+if __name__ == '__main__':
+    main()