如何在 numpy 数组中获取不在内部边界框内但在外部边界框之间的所有 3d 点？

Question

I have a Numpy array for 3d points in the format (n, 3), where n is the number of points, and column 1 is the x coordinate, column 2, is the y coordinate, and column 3 is the z coordinate. How do I get all the point in the outer bounding box, but not in a inner bounding box?

Answer 1

How are the orientations of both boxes? Are the axis parallel to x, y, z?

In this case it is not so difficult.

1. Find out if the point is in the x, y, z range of the outher box
2. if yes: do the same test for the inner box

Just let me know when you need the code