Question

11) List polygon filling algorithms.
Your answer​

Answer 1

Answer:

Step 1 − Find out the Ymin and Ymax from the given polygon. Step 2 − ScanLine intersects with each edge of the polygon from Ymin to Ymax. Step 3 − Sort the intersection point in the increasing order of X coordinate i.e. p0,p1, p1,p2, and p2,p3.

Explanation:

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Answer 2

Polygon is an ordered list of vertices as shown in the following figure. For filling polygons with particular colors, you need to determine the pixels falling on the border of the polygon and those which fall inside the polygon.