public void TestTestOrientation()
{
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(Orientation.CCW, PolygonUtils.TestOrientation(points1, false));
Assert.AreEqual(Orientation.CW, PolygonUtils.TestOrientation(points2, false));
}
public void TestOrientation_Robust()
{
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(Orientation.CCW, PolygonUtils.TestOrientation(points1, true));
Assert.AreEqual(Orientation.CW, PolygonUtils.TestOrientation(points2, true));
IList <Point2d> points3 = DuplicatePoints(points1);
IList <Point2d> points4 = DuplicatePoints(points2);
Assert.AreEqual(Orientation.CCW, PolygonUtils.TestOrientation(points3, true));
Assert.AreEqual(Orientation.CW, PolygonUtils.TestOrientation(points4, true));
}
/**
* This method evaluates the orientation of this polygon.
* <p>
* {@link http://www.easywms.com/easywms/?q=en/node/3602}
* {@link http://paulbourke.net/geometry/clockwise/}
* {@link http://paulbourke.net/geometry/polygonmesh/}
*/
public Orientation TestOrientation()
{
return(PolygonUtils.TestOrientation(this.vertices, this.robust));
}