Steps of cohen sutherland line clipping algorithm, Computer Graphics

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Cohen Sutherland line clipping algorithm

The algorithm uses the following main steps

Divide the entire plane into nine disjoint regions using the four window boundaries of the window.
Give a unique four bit region code to each region.
Find out the code of two end points.
Use the code to check (i) If the line segment can be trivially selected (ii) trivially rejected (iii) needs further processing.
Find out the intersection with the window boundaries for line segments which need further processing.

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