Method of mapping geometric entities from a continuous plane to

Details Method of mapping geometric entities from a continuous plane to Method of mapping geometric entities from a continuous plane to

1989-05-16

1991-02-05

Evans, Arthur G.

Boots, shoes, and leggings

364200, G06K 1500

Patent

active

049911155

ABSTRACT:
A method for generating mask transparencies for the mass production of printed circuit boards using a laser photoplotting system includes an algorithm for mapping geometric entities from the continuous plane such as is used in vector photoplotting to a pixel graphic representation of the geometric entities. The method reduces offset errors between rectangular entities and circular entities in phototool primitives constructed in the discrete pixel graphic system by selecting a pixel to represent the corner of the rectangular entity that is closest to the circumference of the circular entity.

REFERENCES:
patent: 4620287 (1986-10-01), Yam

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