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We can correctly clip a polygon by processing the polygon boundary as a whole against each ___________

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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 edge

I 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

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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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