public Point projectPoint(Point point, Point normal, double d)
{
double t = (point.dotProduct(normal) - d) / normal.dotProduct(normal);
Point result = point.subtract(normal.multiply(t));
return result;
}
public void pointDotProductTest()
{
double expected = 3;
double a1 = 1.0;
double a2 = 3.0;
double a3 = -5.0;
double b1 = 4.0;
double b2 = -2.0;
double b3 = -1.0;
Point a = new Point(3);
a.p[0] = a1;
a.p[1] = a2;
a.p[2] = a3;
Point b = new Point(3);
b.p[0] = b1;
b.p[1] = b2;
b.p[2] = b3;
Assert.AreEqual(expected, a.dotProduct(b));
}
private Point projection(Point u, Point v)
{
Point result = null;
result = u.multiply(u.dotProduct(v)/u.dotProduct(u));
return result;
}