The dual cone $\sigma^{\vee} = \cone(\{(0,-1), (3,2)\})$ shaded in orange. Lattice points generated by the two ray generators are filled olive circles; lattice points in the cone but missing from this span are red crosses. The four extra generators $(0,-1), (1,0), (2,1), (3,2)$ are highlighted as purple squares. Click any lattice point to see its monomial.