Categories of line segments - 2d clipping algorithms, Computer Graphics

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Categories of Line Segments

It categorizes line segments into three categories (i) trivially rejected (ii) trivially selected (iii) may be partially visible or totally invisible. For category (i) and (ii) no intersection calculations are required whereas category (iii) contains all those line segments that need further processing for determining if they are partially visible or totally invisible. For the details about point clipping and line clipping read the following sections of the book carefully.


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