//--------------------------------------------------------------------------------------------------------------
// Performance benchmarking
//--------------------------------------------------------------------------------------------------------------
/// <summary>
/// Just to mak sure the code is compiled etc
/// </summary>
/// <returns>A hash code that just prevents a too-smart compiler for removing redundent code. </returns>
public static double PerformanceTestGDIConversion(int numberOfTests)
{
//TODO: HOW THE HELL DOES THIS TAKE 2MS TO COMPLETE???
double[] numbers = new double[] { 5, 8, 232.5, 123321, 12, -18 };
double hash = 0;
for (int i = 1; i < numberOfTests; i++)
{
//I want to know that the transformation matrix is valid in GDI plus conversions.
TransMatrix2D t1 = TransMatrix2D.FromTRS(
new Point2D(22.25, 31.75),
numbers[i % numbers.Length],
new Point2D(51, 37),
new Point2D(0.5, 0.25));
GDIMatrix g1 = t1.ToGDIPlusMatrix();
TransMatrix2D t2 = TransMatrix2D.FromGDIPlusMatrix(g1);
Point2D test = new Point2D(7.1, numbers[(i + 2) % numbers.Length]);
Point2D p1 = t1.Transform(test);
var temp = new PointF[] { test.AsPointF() };
g1.TransformPoints(temp);
Point2D p2 = new Point2D(temp[0]);
Point2D p3 = t2.Transform(test);
hash += p1.X + p2.X - p3.X;
}
return(hash);
}
public void TestFromGDIPlusMatrix()
{
//TODO: HOW THE HELL DOES THIS TAKE 2MS TO COMPLETE???
//I want to know that the transformation matrix is valid in GDI plus conversions.
TransMatrix2D t1 = TransMatrix2D.FromTRS(
new Point2D(22.25, 31.75),
12,
new Point2D(51, 37),
new Point2D(0.5, 0.25));
GDIMatrix g1 = t1.ToGDIPlusMatrix();
TransMatrix2D t2 = TransMatrix2D.FromGDIPlusMatrix(g1);
Point2D test = new Point2D(7.1, -81.2);
Point2D p1 = t1.Transform(test);
var temp = new PointF[] { test.AsPointF() };
g1.TransformPoints(temp);
Point2D p2 = new Point2D(temp[0]);
Point2D p3 = t2.Transform(test);
double errorThreshold = 0.001;
//all points should not be on the origen
Assert.IsTrue(p1.Length() > errorThreshold);
Assert.IsTrue(p2.Length() > errorThreshold);
Assert.IsTrue(p3.Length() > errorThreshold);
//all points should be similar
Assert.IsTrue(p1.DistanceTo(p2) < errorThreshold);
Assert.IsTrue(p1.DistanceTo(p3) < errorThreshold);
}
