Where is the [0,0] point of vector field?

[hyjforesight]

Hello Dynamo, When setting the initial cells and target cells for LAP, the fixed points which represent the cell state should be defined. I chose the fixed points 13, 6, 2, 5, 1, and found that the coordinates of these fixed points are negative.

good_fixed_points = [13, 6, 2, 5, 1] 
fixed_points=Xss[good_fixed_points]
fixed_points
array([[-5.91626328,  6.95178742],
       [-1.77828235,  0.4022991 ],
       [ 1.86099527, -1.50750829],
       [ 4.47594231,  9.27555429],
       [ 8.40929598,  4.43903784]])

I initially thought the left bottom point of the vector field should be the coordinate [0,0], but it wasn't. So I'm wondering where is the [0,0] point of the vector field.

Thanks! Best, YJ