get_fieldline_npoints# get_fieldline_npoints(traces)[source]# Count the number of valid (non-NaN) points in each fieldline. Parameters: traces (Traces or ndarray) – A Traces object or a 3D array of shape (M, 3, N), where NaNs indicate unused portions of the buffer. Returns: npoints – An array of shape (N,) indicating the number of valid points in each of the N fieldlines. Return type: ndarray of int
