desc.grid.ConcentricGrid.expand

ConcentricGrid.expand(x, surface_label='rho')Source

Expand x by duplicating elements to match the grid’s pattern.

Parameters:

• x (ndarray) – Stores the values of a surface function (constant over a surface) for all unique surfaces of the specified label on the grid. The length of x should match the number of unique surfaces of the corresponding label in this grid. x should be sorted such that the first element corresponds to the value associated with the smallest surface, and the last element corresponds to the value associated with the largest surface.

• surface_label ({"rho", "poloidal", "zeta"}) – The surface label of rho, poloidal, or zeta.

Returns:

expand_x (ndarray) – x expanded to match the grid’s pattern.