Description: experiment : to achieve a polygon scan conversion algorithm filled polygons. Implementation : a can draw arbitrary polygon. 2, as well as through the triangular polygon scan conversion algorithm. Realization : painting polygon with moveto (), LineTo (), two paintings did not function to achieve an edge. Construction ET table, Table AEL, through these two tables filled polygons. Drawing steps : 1. Vertex admitted : n vertices record number, press the mouse started to admit, the second press made the second vertices, i pressed the first time i made its vertex. The vertex put Verex []. 2. Painting polygon : press the menu button-polygon. When painting polygon can be filled with color menu to choose colors. 3. Polygon Filling : press the menu button-filled. When filled with color by color fill
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