desc.coils.FourierRZCoil.compute_magnetic_field

FourierRZCoil.compute_magnetic_field(coords, params=None, basis='rpz', grid=None)Source

Compute magnetic field at a set of points.

The coil current may be overridden by including current in the params dictionary.

Parameters:

• coords (array-like shape(n,3) or Grid) – coordinates to evaluate field at [R,phi,Z] or [x,y,z]

• params (dict, optional) – parameters to pass to curve

• basis ({"rpz", "xyz"}) – basis for input coordinates and returned magnetic field

• grid (Grid, int or None) – Grid used to discretize coil. If an integer, uses that many equally spaced points.

Returns:

field (ndarray, shape(n,3)) – magnetic field at specified points, in either rpz or xyz coordinates