G - Physics – 06 – T
Patent
G - Physics
06
T
G06T 11/60 (2006.01) G06F 15/66 (1990.01)
Patent
CA 2081754
A computer system 100 for production of ink separations from an object-based print pre-process apparatus using a page description language. The print pre-process system facilitates creation of object spreads for any combination or configuration of objects on the rendered page. For each object on a rendered page, the computer system 100 makes use of a spread table to determine spread incidences. For each spread incidence, the computer system generates set union, intersection and difference for spreading, receiving, and obstructing objects by use of a modified Weiler algorithm. The modified Weiler algorithm creates a simplified graph of contour histories providing a visible portion of the spread object. The visible object is strokable within a clipped window set to the receiving object. The stroke color and width, set by the spread table, can be knockout print or overprint.
Boenke Marke
Clegg Derek
Gittelsohn Mike
Passaretti Keith
Seymour Audrey
Fetherstonhaugh & Co.
Island Graphics Corporation
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