xoa.interp.grid2rellocs

xoa.interp.grid2rellocs(xxi, yyi, xo, yo)

Compute coordinates of points relative to a curvilinear grid

Parameters:

• xxi (array_like(nyi, nxi)) – Grid longitudes in degrees

• yyi (array_like(nyi, nxi)) – Grid latitudes in degrees

• xo (array_like(no)) – Point longitude

• yo (array_like(no)) – Point latitude

Returns:

• array_like(no) – The integer part gives the grid cell index along the second dim, and the fractional part gives the coordinate relative this cell. A value of -1 means outside the grid.

• array_like(no) – The integer part gives the grid cell index along the first dim, and the fractional part gives the coordinate relative this cell. A value of -1 means outside the grid.