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Old 07-31-2009, 08:37 AM
gkumar gkumar is offline
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Default polygon clipping

What is polygon clipping? Explain Sutherland-Hodgman algorithm for polygon clipping.
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Old 01-15-2010, 10:14 AM
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Polygon clipping is one of those humble tasks computers do all the time. It's a basic operation in creating graphic output of all kinds. There are several well-known polygon clipping algorithms, each having its strengths and weaknesses.
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Old 02-01-2010, 11:56 AM
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Polygon clipping is the removal of part of an object outside a polygon.Efficient algorithms exist that pipeline the sequence of edges that define the polygon to the set of planes to be clipped against.Polygon clipping is particularly difficult because it is necessary that closed polygons remain closed.Clipping a polygon can result in several disjoint polygons.
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Old 03-03-2010, 06:58 AM
Jeromeclaude Jeromeclaude is offline
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A polygon is generally stored as a collection of vertices. Any clipping algorithm takes one collection, and outputs a new collection. A clipped polygon, after all, is also a polygon. Notice that the clipped polygon often will have more vertices than the unclipped one.
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Old 05-01-2010, 01:54 PM
alton12 alton12 is offline
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Hello Friends

Polygon clipping is one of those humble tasks computers do all the time. It's a basic operation in creating graphic output of all kinds.

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Old 05-24-2010, 08:10 AM
aprillove20 aprillove20 is offline
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The clipped polygon often will have more vertices than the unclipped one.
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Old 08-13-2010, 09:13 AM
colorexperts colorexperts is offline
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it was very informative topic! thanks for sharing..
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Old 08-19-2010, 05:28 AM
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Polygon clipping is one of those humble tasks computers do all the time. It's a basic operation in creating graphic output of all kinds. There are several well-known polygon clipping algorithms, each having its strengths and weaknesses.



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Old 11-03-2011, 08:42 AM
stelalouis stelalouis is offline
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Thanks friends
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Old 12-05-2011, 10:51 AM
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Binary space partition

Space bipartition [section 15.5.2]Foley is based on the notion that a polygon can be seen as a couple of lines which specify half spaces, combined with boolean equations which combine these half spaces into the polygons. Clipping polygons can be expressed as boolean expressions of the polygons. Although the clipping itself is easy using this approach, the back projection from the boolean equations to the polygons is very difficult.
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