三维中的文字注释
演示在3D绘图上放置文本注释。
显示的功能:
- 使用具有三种“zdir”值的文本函数:无,轴名称(例如’x’)或方向元组(例如(1,1,0))。
- 使用带有color关键字的文本功能。
- 使用text2D函数将文本放在ax对象上的固定位置。

# This import registers the 3D projection, but is otherwise unused.from mpl_toolkits.mplot3d import Axes3D # noqa: F401 unused importimport matplotlib.pyplot as pltfig = plt.figure()ax = fig.gca(projection='3d')# Demo 1: zdirzdirs = (None, 'x', 'y', 'z', (1, 1, 0), (1, 1, 1))xs = (1, 4, 4, 9, 4, 1)ys = (2, 5, 8, 10, 1, 2)zs = (10, 3, 8, 9, 1, 8)for zdir, x, y, z in zip(zdirs, xs, ys, zs):label = '(%d, %d, %d), dir=%s' % (x, y, z, zdir)ax.text(x, y, z, label, zdir)# Demo 2: colorax.text(9, 0, 0, "red", color='red')# Demo 3: text2D# Placement 0, 0 would be the bottom left, 1, 1 would be the top right.ax.text2D(0.05, 0.95, "2D Text", transform=ax.transAxes)# Tweaking display region and labelsax.set_xlim(0, 10)ax.set_ylim(0, 10)ax.set_zlim(0, 10)ax.set_xlabel('X axis')ax.set_ylabel('Y axis')ax.set_zlabel('Z axis')plt.show()
