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We can correctly clip a polygon by processing the polygon boundary as a whole against each ___________(a) side wall(b) top edge(c) window edge(d) bottom edgeI had been asked this question in an interview.This intriguing question comes from Sutherland-Hodgeman Polygon Clipping topic in division 2D Transformation and Viewing of Computer Graphics

Answer»

Right option is (c) window edge

The EXPLANATION is: We can correctly CLIP a polygon by PROCESSING the polygon boundary as a whole against each window edge which can be ACCOMPLISHED by processing all polygon vertices against each rectangle.



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