Re: [Kwant] Hexagonal quantum ring

Hi, I'd do something like this: from math import sqrt, atan2, cos, pi def hexagon(pos): x, y = pos r, phi = sqrt(x**2 + y**2), atan2(y, x) return r_inner < r * cos(phi - round(phi / (pi / 6))) < r_outer I didn't test this function, so there may be errors, but the overall idea should be clear. Best, Anton On Fri, Mar 20, 2015 at 7:25 PM, Jonas da Silva Nascimento wrote:

Hi,

I want make a hexagonal quantum ring. I thought about using straight-lines (12-lines) for limit the points between its, but I will have many lines code. Has someone a better idea? Other thing, I want calculate the current density as function of a defect in a of the arm. Is it possible?

Thank for help me.

Jonas