public void TestSignedArea()
{
IList <Point2d> points1 = AsList(new Point2d(0, 0), new Point2d(10, 0), new Point2d(10, 10), new Point2d(0, 10));
IList <Point2d> points2 = AsList(new Point2d(0, 0), new Point2d(0, 10), new Point2d(10, 10), new Point2d(10, 0));
Assert.AreEqual(100d, PolygonUtils.SignedArea(points1), MathUtils.EPSILON);
Assert.AreEqual(-100d, PolygonUtils.SignedArea(points2), MathUtils.EPSILON);
}
/**
* This method evaluates the area of this polygon.
*/
public double SignedArea()
{
return(PolygonUtils.SignedArea(this.vertices, this.robust));
}