How to calculate the area of a java.awt.geom.Area?

Question

I am looking for a way to calculate the area, in pixels, of an arbitrary instance of java.awt.geom.Area.

The background: I have Shapes in m

Answer 1

I would comment if I could. Suraj, your algorithm is correct, but the code should be

        int sum = 0;
        for (int i = 0; i < npoints ; i++)
        {
            sum = sum + Xs[i]*Ys[(i+1)%npoints] - Ys[i]*Xs[(i+1)%npoints];
        }

        return Math.abs(sum / 2);

In your code last vertice is not taken into account. Just a small edit :)