Patent ID: 7023439

Claim:
A method of activating a filling of a graphical object, the method comprising the steps of: generating, for a current scanline, a plurality of edge records associated with an edge of the object from a previously generated said edge record for a previous scanline, wherein one of said edge records for the current scanline comprises fractional data which defines a minimum position of the edge within the current scanline or on a border thereto with respect to a direction along said current scanline, one of said edge records for the current scanline comprises fractional data which defines a maximum position of the edge within the current scanline or on a border thereto with respect to a direction along said current scanline, and one of said edge records for the current scanline comprises fractional data which defines an exit position of the edge from the current scanline, and wherein said previously generated edge record comprises fractional data defining a exit point of the edge from the previous scanline; and activating, for the current scanline, the filling of the graphical object over a run of pixels or pixel from a minimum pixel position to a maximum pixel position, wherein said minimum pixel position is derived from rounding down a value equal to said fractional data of said edge record defining said minimum position, and said maximum pixel position is derived from rounding up a value equal to said fractional data of said edge record defining said maximum position.