Numpy meshgrid in 3D

Question

Numpy\'s meshgrid is very useful for converting two vectors to a coordinate grid. What is the easiest way to extend this to three dimensions? So given three vectors x, y, an

Answer 1

Instead of writing a new function, numpy.ix_ should do what you want.

Here is an example from the documentation:

>>> ixgrid = np.ix_([0,1], [2,4])
>>> ixgrid
(array([[0],
   [1]]), array([[2, 4]]))
>>> ixgrid[0].shape, ixgrid[1].shape
((2, 1), (1, 2))'