Patent ID: 6636230
Filing Date: 2003-10-21
Classification: G06T

Abstract:
A method for plotting a starting cap of a line segment on a computer display, said computer display comprising a plurality of pixels in a rectilinear array, said line segment having a mathematical origin and a thickness, the method comprising:determining a mathematical origin corrected for said thickness by computing a square having said mathematical origin at one corner of said square, said square being aligned horizontally and vertically with said rectilinear array of pixels and each side of said square having a length equal to said thickness; determining a group of shaded pixels, said shaded pixels being pixels in which said mathematical origin corrected for said thickness falls, said group of shaded pixels having four corners; choosing a temporary origin at a corner of said shaded pixels; assigning a full intensity value to any shaded pixel that said mathematical origin corrected for said thickness completely covers; and assigning intensity values to said shaded pixels that said mathematical origin corrected for said thickness does not completely cover based on the area of said mathematical origin corrected for said thickness lying within each shaded pixel.