pyflwdir.FlwdirRaster.basin_outlets#

FlwdirRaster.basin_outlets(basins: ndarray) → tuple[ndarray, ndarray][source]#

Return basin IDs and the linear index of each outlet cell.

Parameters:

basins (2D array of int) – Raster of basin IDs. Each basin must be connected, and zero is reserved for background.

Returns:

  • lbs (1D array of int) – Unique basin IDs, sorted in ascending order.

  • idxs_out (1D array of int) – Linear index of the outlet cell for each basin in lbs.