Apparatus and method for line drawing

Details Apparatus and method for line drawing Apparatus and method for line drawing

2005-05-10

2005-05-10

Bella, Matthew C. (Department: 2676)

Computer graphics processing and selective visual display system

Computer graphics processing

Shape generating

C345S586000, C345S592000, C345S601000, C345S643000, C345S612000

Reexamination Certificate

active

06891540

ABSTRACT:
An apparatus for line drawing using a plurality of pixels to display a line, including a first parameter generating module, a second parameter generating module, a storage module, a retrieving module, and a calculating module. In this case, the first parameter generating module generates a first parameter according to a slope of the line. The second parameter generating module generates a second parameter according to the distance between one of the pixels and the line in axial directions. The storage module stores an index table, which records at least a blending factor and the correlations between the first parameter, second parameter, and blending factor. Therefore, the retrieving module searches for the blending factor from the index table according to the first and second parameter. Finally, the calculating module determines the color of this pixel according to the blending factor.

REFERENCES:
patent: 5724561 (1998-03-01), Tarolli et al.
patent: 6587113 (2003-07-01), Baldwin et al.

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