Iterative real-time XY raster path generator for bounded areas

摘要

Apparatus for defining a step-by-step path through pixels located at the intersections of rectilinear coordinates that lie between boundaries that cross one set of coordinates. The respective distances of each of a pattern of pixels from one boundary and the distance between boundaries as well as the direction of the last step in the path are applied to a ROM to determine whether the next step is along one type of coordinate or the other or along a diagonal.