Boots – shoes – and leggings
Patent
1986-09-26
1989-07-18
Harkcom, Gary V.
Boots, shoes, and leggings
364518, 340724, 382 55, G06F 1540
Patent
active
048499102
ABSTRACT:
Method for the generation of line segments having a specific thickness and having round extremities on a homogeneous raster, the raster points of which form a number of parallel raster lines, between a start point and an end point, the line segment being stored in a bit map memory in the form of a large number of image points or pixels, comprising: the determination of the coordinates of the center points of the line segment in the consecutive raster lines; the generation of a disc having a diameter which corresponds to the thickness of the line segment: and the placing of the bit-representation of the disc at the start point of the line segment in the bit-map memory, the center point of the disc corresponding to the coordinates of the start point of the line segment. At least a section of the bit representation of the disc is stored in an intermediate memory and at least a section thereof is repeatedly read out of the intermediate memory and is placed in the bit-map memory, the locations of said read-out sections of the disc in the bit-map memory being related to the line center points of the line segment in the consecutive raster lines.
REFERENCES:
patent: 4031519 (1977-06-01), Findley
patent: 4601002 (1986-07-01), Rosenthal
patent: 4674059 (1987-06-01), Schrieber
patent: 4680578 (1987-07-01), Hornig et al.
Sproull, Robert, "Using Program Transformations to Derive Line-Drawing Algorithms", ACM Transactions on Graphics, vol. 1, No. 4, Oct. 1982, pp. 259-273.
"Graphics Capabilities on a Laser Printer", The Hewlett-Packard Journal, vol. 34, Nov. 1983, No. 11, pp. 17-22.
Jacobs Johannes W. M.
Schuerman Cornelis P.
Harkcom Gary V.
Herndon H. R.
Oce'-Nederland, B.V.
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