Area of a irregular shape

Question

I have set of points which lies on the image. These set of points form a irregular closed shape. I need to find the area of this shape. Does any body which is the normal algorit

Answer 1

The simplest way to do this is probably to triangulate your shape and calculate the area of the triangles. Dave Eberly has a library called (Boost license) that may help with the triangulation; there is more information here. Look for TriangulateEC, for example.