static public AngleAndDistance GetAngleAndDistance(PointF p1, PointF p2)
{
AngleAndDistance angleAndDistance = new AngleAndDistance();
angleAndDistance.Distance = HelperFunctions.GetDistanceBetweenTwoPoints(p1, p2);
angleAndDistance.AngleInDegrees = HelperFunctions.GetAngleBetweenTwoPoints(p1, p2);
return(angleAndDistance);
}
static public PointF[] RotatePolygon(PointF[] pointArray, double rotationAngle, PointF origin)
{
List <PointF> returnPoints = new List <PointF>();
foreach (PointF point in pointArray)
{
PointF relativePoint = new PointF(point.X - origin.X, point.Y - origin.Y);
AngleAndDistance angleAndDistance = HelperFunctions.GetAngleAndDistance(origin, point);
PointF rotatedRelativePoint = HelperFunctions.ConvertAngleAndDistanceToXY
(angleAndDistance.AngleInDegrees + rotationAngle, angleAndDistance.Distance);
returnPoints.Add(new PointF(rotatedRelativePoint.X + origin.X, rotatedRelativePoint.Y + origin.Y));
}
return(returnPoints.ToArray());
}
