public void TestRotation2()
{
float degree = 90.0f;
double theta = Transformation.DegreeToRadian(degree);
var c = new PointF(5, 5);
var p1 = new PointF(1, 1);
var r1a = Transformation.Rotate(p1, c, degree);
var r1b = Transformation.RotateRadians(p1, c, theta);
Assert.IsTrue(r1a == r1b, "Not equal: " + r1a + " != " + r1b);
var p2 = new PointF(9, 5);
var r2a = Transformation.Rotate(p2, c, degree);
var r2b = Transformation.RotateRadians(p2, c, theta);
Assert.IsTrue(r2a == r2b, "Not equal: " + r2a + " != " + r2b);
var p3 = new PointF(2, -4);
var r3a = Transformation.Rotate(p3, c, degree);
var r3b = Transformation.RotateRadians(p3, c, theta);
Assert.IsTrue(r3a == r3b, "Not equal: " + r3a + " != " + r3b);
}