Polygon fill Applet

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Draw a polygon by clicking at each corner. Finish the polygon by clicking on the first corner. Then see the interior pixels one at a time by clicking on the step button.

The class ScanLine implements the scanline algorithm. It uses the classes AEL to represent the Active Edge List and IEL to represent the Inactive Edge List. EdgeList is the superclass for AEL and IEL. The class Edge represents one polygon edge.