| public static Project ( Vector3D, vector, Vector3D, onNormal ) : Vector3D, | ||
| vector | Vector3D, | |
| onNormal | Vector3D, | |
| return | Vector3D, | |
public static Vector3D Project(Vector3D vector, Vector3D onNormal)
{
double num = Vector3D.Dot (onNormal, onNormal);
if (num < Mathf.Epsilon)
{
return Vector3D.zero;
}
return onNormal * Vector3D.Dot (vector, onNormal) / num;
}
public void Project2Test()
{
var v = new Vector3D(1.5925, 1.5075, 3);
var v2 = v.Project(new Line3D(-1.5317, 1.9230, 1.5482, 3.1248, -0.9249, -1.9787));
// v2 is endpoint of perp line from v to projection line
Assert.True(v2.EqualsTol(1e-4, -.3617, 1.2075, .6621));
}