Calculate the bounding box of a region in projected coordinates.
region (list = [W, E, S, N]) – The boundaries of a given region in Cartesian or geographic coordinates.
projection (callable) – Should be a callable object (like a function)
projection(easting, northing) -> (proj_easting, proj_northing)that takes in easting and northing coordinate arrays and returns projected northing and easting coordinate arrays.
proj_region (list = [W, E, S, N]) – The bounding box of the projected region.
>>> def projection(x, y): ... return (2*x, -1*y) >>> project_region((3, 5, -9, -4), projection) (6.0, 10.0, 4.0, 9.0)