desc.magnetic_fields.PoloidalMagneticField.compute_magnetic_vector_potential

PoloidalMagneticField.compute_magnetic_vector_potential(coords, params=None, basis='rpz', source_grid=None, transforms=None)Source

Compute magnetic vector potential at a set of points.

Parameters:

• coords (array-like shape(n,3)) – Nodes to evaluate vector potential at in [R,phi,Z] or [X,Y,Z] coordinates.

• params (dict or array-like of dict, optional) – Dict of values for B0.

• basis ({"rpz", "xyz"}) – Basis for input coordinates and returned magnetic vector potential.

• source_grid (Grid, int or None or array-like, optional) – Unused by this MagneticField class.

• transforms (dict of Transform) – Transforms for R, Z, lambda, etc. Default is to build from source_grid Unused by this MagneticField class.

Returns:

A (ndarray, shape(N,3)) – magnetic vector potential at specified points