xoa.interp.grid2relloc

xoa.interp.grid2relloc(xxi, yyi, xo, yo)

Compute coordinates of point 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 (float) – Point longitude

• yo (float) – Point latitude

Returns

• float – 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.

• float – 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.