public void setProperties(Point3d p1, Point3d p2) {
		this.pivot.setProperties(p1.xProperty,p1.yProperty,p1.zProperty);
		this.d.sub(p2, p1);
	}
public void setProperties ( Point3d p1 , Point3d p2 ) { this . pivot . setProperties ( p1 . xProperty , p1 . yProperty , p1 . zProperty ) ; this . d . sub ( p2 , p1 ) ; }
{@inheritDoc}