index

Derivative.indexSource

Index of the EMC3-EIRENE-defined center grids.

The shape of the index array is (L, M, N), which follows the order of (\(\rho\), \(\theta\), \(\zeta\)) grid resolution.

The index array is used to convert the 3D grid coordinates indices to 1D array index, i.e. index[l, m, n] = i means the 3D grid coordinates (l, m, n) is converted to the 1D array index i.