desc.objectives.PrincipalCurvature.compute

PrincipalCurvature.compute(*args, **kwargs)[source]

Compute max absolute principal curvature.

Parameters:

  • R_lmn (ndarray) – Spectral coefficients of R(rho,theta,zeta) – flux surface R coordinate (m).

  • Z_lmn (ndarray) – Spectral coefficients of Z(rho,theta,zeta) – flux surface Z coordinate (m).

Returns:

k (ndarray) – Max absolute principal curvature at each point (m^-1).