99 Demo Graham Scan
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description
Graham Scan
Transcript of 99 Demo Graham Scan
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Algorithms, 4th Edition Robert Sedgewick and Kevin Wayne Copyright 20022011 September 24, 2011 8:59:25 AM
AlgorithmsF O U R T H E D I T I O N
R O B E R T S E D G E W I C K K E V I N W A Y N E
GRAHAM SCAN DEMO
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Choose point p with smallest y-coordinate. Sort points by polar angle with p. Consider points in order, and discard unless that would create a ccw turn.
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Graham scan
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Choose point p with smallest y-coordinate. Sort points by polar angle with p. Consider points in order, and discard unless that would create a ccw turn.
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Graham scan
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Choose point p with smallest y-coordinate. Sort points by polar angle with p. Consider points in order, and discard unless that would create a ccw turn.
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Graham scan
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Choose point p with smallest y-coordinate. Sort points by polar angle with p. Consider points in order, and discard unless that would create a ccw turn.
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1112
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Graham scan
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Choose point p with smallest y-coordinate. Sort points by polar angle with p. Consider points in order, and discard unless that would create a ccw turn.
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67
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1112
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Graham scan
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Choose point p with smallest y-coordinate. Sort points by polar angle with p. Consider points in order, and discard unless that would create a ccw turn.
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Graham scan
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Choose point p with smallest y-coordinate. Sort points by polar angle with p. Consider points in order, and discard unless that would create a ccw turn.
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Graham scan
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Choose point p with smallest y-coordinate. Sort points by polar angle with p. Consider points in order, and discard unless that would create a ccw turn.
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Graham scan
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1112
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Choose point p with smallest y-coordinate. Sort points by polar angle with p. Consider points in order, and discard unless that would create a ccw turn.
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Graham scan
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1112
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Choose point p with smallest y-coordinate. Sort points by polar angle with p. Consider points in order, and discard unless that would create a ccw turn.
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Graham scan
67
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1112
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Choose point p with smallest y-coordinate. Sort points by polar angle with p. Consider points in order, and discard unless that would create a ccw turn.
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Graham scan
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Choose point p with smallest y-coordinate. Sort points by polar angle with p. Consider points in order, and discard unless that would create a ccw turn.
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Graham scan
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Choose point p with smallest y-coordinate. Sort points by polar angle with p. Consider points in order, and discard unless that would create a ccw turn.
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Graham scan
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Choose point p with smallest y-coordinate. Sort points by polar angle with p. Consider points in order, and discard unless that would create a ccw turn.
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Graham scan
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Choose point p with smallest y-coordinate. Sort points by polar angle with p. Consider points in order, and discard unless that would create a ccw turn.
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Graham scan
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Choose point p with smallest y-coordinate. Sort points by polar angle with p. Consider points in order, and discard unless that would create a ccw turn.
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Graham scan
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Choose point p with smallest y-coordinate. Sort points by polar angle with p. Consider points in order, and discard unless that would create a ccw turn.
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Graham scan
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Choose point p with smallest y-coordinate. Sort points by polar angle with p. Consider points in order, and discard unless that would create a ccw turn.
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Graham scan
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Choose point p with smallest y-coordinate. Sort points by polar angle with p. Consider points in order, and discard unless that would create a ccw turn.
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Graham scan
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Choose point p with smallest y-coordinate. Sort points by polar angle with p. Consider points in order, and discard unless that would create a ccw turn.
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1112
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Graham scan
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Choose point p with smallest y-coordinate. Sort points by polar angle with p. Consider points in order, and discard unless that would create a ccw turn.
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Graham scan
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Choose point p with smallest y-coordinate. Sort points by polar angle with p. Consider points in order, and discard unless that would create a ccw turn.
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Graham scan
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Choose point p with smallest y-coordinate. Sort points by polar angle with p. Consider points in order, and discard unless that would create a ccw turn.
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Graham scan
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