scipy.spatial.tsearch¶
- scipy.spatial.tsearch(tri, xi)¶
找出包含给定点的简图。此函数的作用与
Delaunay.find_simplex。0.9 新版功能.
示例
>>> import numpy as np >>> import matplotlib.pyplot as plt >>> from scipy.spatial import Delaunay, delaunay_plot_2d, tsearch >>> rng = np.random.default_rng()
一组随机点的Delaunay三角剖分：
>>> pts = rng.random((20, 2)) >>> tri = Delaunay(pts) >>> _ = delaunay_plot_2d(tri)
查找包含一组给定点的简化：
>>> loc = rng.uniform(0.2, 0.8, (5, 2)) >>> s = tsearch(tri, loc) >>> plt.triplot(pts[:, 0], pts[:, 1], tri.simplices[s], 'b-', mask=s==-1) >>> plt.scatter(loc[:, 0], loc[:, 1], c='r', marker='x') >>> plt.show()
