Patent ID: 7808511

Claim:
A computer processing-based method for pre-processing a vector image, comprising: receiving, by a computer, data for a vector image, the vector image data including a list of descriptions of global vector objects that can be rasterized for display at arbitrary levels of resolution; for each local region from among a plurality of local rectangular regions of the vector image, the local rectangular regions being associated with levels of resolution, determining, by the computer, local vector objects that correspond to intersections of global vector objects with such local region; specifying, by the computer, a local vector object of a local rectangular region as a single pixel if the local vector object is confined within a single pixel for the level of resolution corresponding to the local rectangular region; and for each local region from among the plurality of local rectangular regions, storing, by the computer, descriptions of its local vector objects within a computer memory, wherein at least one of the descriptions specifies a local vector object as a single pixel if the local vector object is confined within a single pixel for the level of resolution corresponding to the local rectangular region.