I've just written this snippet of code:
result = numpy.empty((dim, dim, dim), numpy.bool)
for x in xrange(dim):
for y in xrange(dim):
for z in xrange(dim):
result[x, y, z] = ((xnear[y, z] < xfar[y, z]) and
(ynear[x, z] < yfar[x, z]) and
(znear[x, y] < zfar[x, y]))
Is there a way to get numpy to do the looping?