|
public static Collinear ( |
||
| pt1 | ||
| pt2 | ||
| pt3 | ||
| return | bool | |
/// <summary>
/// Checks if the selected points will result in a degenerate homography.
/// </summary>
///
private bool degenerate(int[] points)
{
PointF[] x1 = this.pointSet1.Submatrix(points);
PointF[] x2 = this.pointSet2.Submatrix(points);
// If any three of the four points in each set is collinear,
// the resulting homography matrix will be degenerate.
return(Tools.Collinear(x1[0], x1[1], x1[2]) ||
Tools.Collinear(x1[0], x1[1], x1[3]) ||
Tools.Collinear(x1[0], x1[2], x1[3]) ||
Tools.Collinear(x1[1], x1[2], x1[3]) ||
Tools.Collinear(x2[0], x2[1], x2[2]) ||
Tools.Collinear(x2[0], x2[1], x2[3]) ||
Tools.Collinear(x2[0], x2[2], x2[3]) ||
Tools.Collinear(x2[1], x2[2], x2[3]));
}
public void ColinearTest1()
{
bool actual;
PointF pt1, pt2, pt3;
pt1 = new PointF(0, 0);
pt2 = new PointF(1, 1);
pt3 = new PointF(2, 2);
actual = Tools.Collinear(pt1, pt2, pt3);
Assert.AreEqual(true, actual);
pt1 = new PointH(0, 1);
pt2 = new PointH(1, 1);
pt3 = new PointH(2, 2);
actual = Tools.Collinear(pt1, pt2, pt3);
Assert.AreEqual(false, actual);
}
public void ColinearTest()
{
bool actual;
PointH p1 = new PointH(0, 1);
PointH p2 = new PointH(0, 2);
PointH p3 = new PointH(0, 3);
bool expected = true;
actual = Tools.Collinear(p1, p2, p3);
Assert.AreEqual(expected, actual);
p1 = new PointH(0, 1);
p2 = new PointH(1, 0);
p3 = new PointH(1, 1);
expected = false;
actual = Tools.Collinear(p1, p2, p3);
Assert.AreEqual(expected, actual);
}