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Call: MAGNETIC_FIELD


coordinates

The coordinates system expected by MAGNETIC_FIELD is the internal frame. If you describe your cell in Cartesian coordinates, then the internal frame is simply the Cartesian coordinate system. If use polar coordinates however, then you should supply the following parameters:

for x: log(r)
for y: phi, in radians

field

The field is returned in internal coordinates. The internal coordinates system is Cartesian when the cell is described in Cartesian coordinates, but when you describe the cell in polar coordinates, you've to apply the following mapping:

Br = Bx/r
Bphi = By/r
Bz = Bz

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Formatted on 0099-12-08 at 15:53.