<image>【Problem Statement】As shown in the figure, the side length of each small square in the square grid is equal. The three vertices A, B, and C of △ABC are all on the grid points. If the grid point D is on the circumcircle of △ABC, then the number of points D in the figure that meet the conditions is _ ▲ _ (point D does not coincide with points A, B, or C). 