1. A method for rendering a circular point on a display device, the circular point having a center, radius and a circumference and located within a bounding area, comprising the steps of: selecting a polygon representing the circular point from a predefined set of polygons; determining vertices of the polygon; dividing the bounding area into one or more tiles; classifying at least one tile of the one or more sections according to the center and the radius of the circular point, wherein the at least one tile is classified into one or more predetermined sections; generating a mask for the at least one tile according to a section of the at least one tile; and rendering the circular point according to the mask.