public static function fromPoints($point_a, $point_b, $point_c)
{
$plan = new Plan();
// n: AB x AC
// u: AB
// v: AC
// p: OA
$u = Vector::fromPoints($point_a, $point_b);
$v = Vector::fromPoints($point_a, $point_c);
$point = Vector::fromComponents($point_a->x(), $point_a->y(), $point_a->z());
}
/**
* Distance between 2 points.
*/
function distancePointPoint(Point $point_a, Point $point_b)
{
$vector = Vector::fromPoints($point_a, $point_b);
return $vector->getNorm();
}
