public GLVector CrossProduct()
{
if (Points.Count < 3)
{
return(new GLVector());
}
var u = new GLVector(Points[0], Points[1]);
var v = new GLVector(Points[1], Points[2]);
return(GLVector.CrossProduct(u, v));
}
public static GLPlane CreateFromVectorsAndPoint(GLVector u, GLVector v, GLPoint P)
{
var plane = new GLPlane();
plane.Name = "plane";
plane.Position = P;
var n = GLVector.CrossProduct(u, v);
plane.NormalVector = n;
plane.D = -n.X * P.X - n.Y * P.Y - n.Z * P.Z;
return(plane);
}