public void PolygonAlignToPivotTest()
{
var startPnts = new[] {
new PointF(0 , 0)
, new PointF(20, 30)
, new PointF(40, 0) };
var plg = new Polygon(startPnts);
var newPivot = plg.GetCenter();
if (!newPivot.IsEmpty)
using (plg.UsingUpdate())
plg.Location = new PointF(plg.Location.X - newPivot.X, plg.Location.Y - newPivot.Y);
var controlPnts = new[] {
new PointF(-20 , -10)
, new PointF(0, 20)
, new PointF(20, -10) };
foreach (var i in plg.Keys)
Assert.IsTrue(controlPnts[i].Equals(plg[i]));
}