A method and apparatus for compactly describing an image made up of concatenated lines or filled polygons. The drawing of lines for the image begins at an initial drawing point determined in a coordinate system defined by a unit screen and proceeds from point to point with the relative coordinates of...http://www.google.de/patents/US4396989?utm_source=gb-gplus-sharePatent US4396989 - Method and apparatus for providing a video display of concatenated lines and filled polygons
