MERGE RASTERS TO FILL EXTENT

Given a `SpatialPolygons` object and a directory filepath character string, returns merged rasters from `dir` over extent of `poly`.

fill_extent(poly, dir, band)

Arguments

poly	is a `SpatialPolygons` object
dir	is a directory filepath character string
band	is the band to extract from multiband imagery

Value

merged rasters from `dir` over extent of `poly`