Apparatus and method for line drawing
First Claim
1. An apparatus for line drawing, which uses a plurality of pixels to display a line, comprising:
- a first parameter generating module, which generates a first parameter according to a slope of the line;
a second parameter generating module, which generates a second parameter according to a distance between one of the pixels and the line in axial directions;
a storage module, which stores an index table, wherein the index table records at least a blending factor and correlations between the first parameter, second parameter, and blending factor;
a retrieving module, which searches the blending factor from the index table according to the first parameter and second parameter; and
a calculating module, which determines a color of the pixel according to the blending factor.
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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.
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Citations
19 Claims
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1. An apparatus for line drawing, which uses a plurality of pixels to display a line, comprising:
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a first parameter generating module, which generates a first parameter according to a slope of the line;
a second parameter generating module, which generates a second parameter according to a distance between one of the pixels and the line in axial directions;
a storage module, which stores an index table, wherein the index table records at least a blending factor and correlations between the first parameter, second parameter, and blending factor;
a retrieving module, which searches the blending factor from the index table according to the first parameter and second parameter; and
a calculating module, which determines a color of the pixel according to the blending factor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for line drawing, which uses a plurality of pixels to display a line, comprising:
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generating a first parameter according to a slope of the line;
generating a second parameter according to a distance between one of the pixels and the line in axial directions;
searching for a blending factor from an index table according to the first parameter and the second parameter; and
determining a color of the pixel according to the blending factor. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification