chickadee » hexgrid » west

east cellprocedure
northeast cellprocedure
northwest cellprocedure
west cellprocedure
southwest cellprocedure
southeast cellprocedure

Return the cell adjacent to cell in the corresponding direction. Bounds are not checked not wrapped around; compose horizontal-wrapper, vertical-wrapper and/or within-bounds? with these, if you want wrapping and/or checking versions.