Automated bitmap character generation from outlines

Details Automated bitmap character generation from outlines Automated bitmap character generation from outlines

1986-02-07

1988-11-15

Harkcom, Gary V.

Boots, shoes, and leggings

340720, 340723, 340730, 364521, G06F 314

Patent

active

047853913

ABSTRACT:
An outline representation of a character or symbol is treated as being composed of a hierarchy of zones formed in both the horizontal and vertical directions. The zones are completely character-specific. Each zone defines the extent of some feature of the character. The boundaries of the zones are mapped to specific pixel locations in a bitmap em-square of selected resolution and size. The available pixels are then allocated to the zones. After each level of zone has received its pixel allocation, the pixels assigned thereto are then distributed among the next lower level of zones and the process is repeated iteratively until all zones have received their pixel allocations or it is no longer possible to make allocations. To maintain relationships between features, features of characters (both within individual characters and between different characters) may be linked so as to be defined in terms of the features of the same or other characters. The features are linked at the outline description level, so that the linking need be specified only once and will thereafter be useful any time a bitmap is to be generated from the outline.

REFERENCES:
patent: 4254468 (1981-03-01), Craig
patent: 4553214 (1985-11-01), Dettmer
patent: 4670841 (1987-06-01), Kostopoulos
patent: 4674059 (1987-06-01), Schrieber
patent: 4675830 (1987-06-01), Hawkins
J. Flowers, "Digital Type Manufacture: An Interactive Approach," I.E.E.E. Computer, vol. 17, No. 5, May 1984, pp. 40-48.
W. Richmond, "Digital Masters," Communication Arts, May-Jun. 1984, pp. 78-81.
C. Bigelow and D. Day, "Digital Typography," Scientific American, vol. 249, No. 2, 1983, pp. 106-119.

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