salem.Grid.grid_lookup

Grid.grid_lookup(other)

Performs forward transformation of any other grid into self.

The principle of forward transform is to obtain, for each grid point of self , all the indices of other that are located into the given grid point. This transformation makes sense ONLY if other has a higher resolution than the object grid. If other has a similar or coarser resolution than self , choose the more general (and much faster) Grid.map_gridded_data() method.

Parameters:

other : salem.Grid

the grid that needs to be transformed into self

Returns:

a dict: each key (j, i) contains an array of shape (n, 2) where n is

the number of ``other`` ‘s grid points found within the grid point

(j, i)