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Explain Winding Number In Visualization? |
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Answer» WINDING number method is used to check whether a GIVEN POINT is inside or out side the polygon. In this method give a direction number to all the EDGES which cross the scan line. If the edge STARTS below the line and ends above scan line give direction as -1 . otherwise1. Fr polygons or two dimensional objects, the point is said to be inside when the value of winding number is nonzero. Winding number method is used to check whether a given point is inside or out side the polygon. In this method give a direction number to all the edges which cross the scan line. If the edge starts below the line and ends above scan line give direction as -1 . otherwise1. Fr polygons or two dimensional objects, the point is said to be inside when the value of winding number is nonzero. |
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