Brankonymous's blog

How to calculate area of concave polygon
By Brankonymous, history, 5 years ago, In English

Does anyone know any source material or code, when given n coordinate points, you need to calculate area of given non-convex polygone.

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5 years ago, # |
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You can use algorithm for triangution polygon and then sum up areas of all triangles.

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5 years ago, # |
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as long as the polygon is simple you can use the shoelace formula

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5 years ago, # |
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Try this maybe? http://lmgtfy.com/?q=How+to+calculate+area+of+concave+polygon+algorithm

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