Is kernel pattern in code correct?

[BlueHorn07]

SphereNet-pytorch/spherenet/sphere_cnn.py

Lines 11 to 28 in 15e926c

	def get_xy(delta_phi, delta_theta):
	return np.array([
	[
	(-tan(delta_theta), 1/cos(delta_theta)*tan(delta_phi)),
	(0, tan(delta_phi)),
	(tan(delta_theta), 1/cos(delta_theta)*tan(delta_phi)),
	],
	[
	(-tan(delta_theta), 0),
	(1, 1),
	(tan(delta_theta), 0),
	],
	[
	(-tan(delta_theta), -1/cos(delta_theta)*tan(delta_phi)),
	(0, -tan(delta_phi)),
	(tan(delta_theta), -1/cos(delta_theta)*tan(delta_phi)),
	]
	])

I have a simple question for your code.

In the sphereNet paper, they defined a kernel pattern as below

However, your code in line 20, the center is (1, 1) not (0, 0).

I'm confusing what is correct 😢

[androclassic]

I noticed the same thing!