distanceSqToPoint method
Implementation
num distanceSqToPoint(Vector3 point) {
final directionDistance = _vector.sub2(point, origin).dot(direction);
if (directionDistance < 0) {
return origin.distanceToSquared(point);
}
_vector.setFrom(direction).scale(directionDistance).add(origin);
return _vector.distanceToSquared(point);
}