public void FindsCenterFromTwoSubPixels()
{
var tl = SubPixel.Create(0, 0, 1, 0, 0);
var br = SubPixel.Create(1, 1, 1, 0, 0);
var c = SubPixel.Center(in tl, in br);
c.Should().Be(SubPixel.Create(0, 0, 2, 1, 1));
tl = SubPixel.Create(2, 3, 2, 1, 1);
br = SubPixel.Create(3, 4, 1, 0, 0);
c = SubPixel.Center(in tl, in br);
c.Should().Be(SubPixel.Create(2, 3, 4, 3, 3));
}
public void CanFindSubPixelCorners()
{
var sp = SubPixel.Create(0, 0, 2, 1, 1);
var(tl, tr, bl, br) = SubPixel.Corners(in sp);
tl.Should().Be(SubPixel.Create(0, 0, 1, 0, 0));
tr.Should().Be(SubPixel.Create(1, 0, 1, 0, 0));
bl.Should().Be(SubPixel.Create(0, 1, 1, 0, 0));
br.Should().Be(SubPixel.Create(1, 1, 1, 0, 0));
sp = SubPixel.Create(3, 4, 4, 3, 2);
(tl, tr, bl, br) = SubPixel.Corners(in sp);
tl.Should().Be(SubPixel.Create(3, 4, 4, 2, 1));
tr.Should().Be(SubPixel.Create(4, 4, 4, 0, 1));
bl.Should().Be(SubPixel.Create(3, 4, 4, 2, 3));
br.Should().Be(SubPixel.Create(4, 4, 4, 0, 3));
}
public void SubPixelAlignToLowestDivisions()
{
var sp = SubPixel.Create(1, 1, 1, 1, 1);
sp.X.Should().Be(2);
sp.Y.Should().Be(2);
sp.Divisions.Should().Be(1);
sp.Dx.Should().Be(0);
sp.Dy.Should().Be(0);
sp = SubPixel.Create(1, 1, 2, 1, 1);
sp.X.Should().Be(1);
sp.Y.Should().Be(1);
sp.Divisions.Should().Be(2);
sp.Dx.Should().Be(1);
sp.Dy.Should().Be(1);
sp = SubPixel.Create(1, 3, 4, 3, 4);
sp.X.Should().Be(1);
sp.Y.Should().Be(4);
sp.Divisions.Should().Be(4);
sp.Dx.Should().Be(3);
sp.Dy.Should().Be(0);
}
