23   * direction vector \f$ \mathbf{d} \f$ such that the line corresponds to
48    : m_origin(other.origin()), m_direction(other.direction())  in ParametrizedLine()
55   /** Initializes a parametrized line of direction \a direction and origin \a origin.
56     * \warning the vector direction is assumed to be normalized.
58   ParametrizedLine(const VectorType& origin, const VectorType& direction)  in ParametrizedLine()  argument
59     : m_origin(origin), m_direction(direction) {}  in ParametrizedLine()
76   const VectorType& direction() const { return m_direction; }  in direction()  function
77   VectorType& direction() { return m_direction; }  in direction()  function
85     return (diff - direction().dot(diff) * direction()).squaredNorm();  in squaredDistance()
94   { return origin() + direction().dot(p-origin()) * direction(); }  in projection()
125     m_direction = other.direction().template cast<Scalar>();  in ParametrizedLine()
149   direction() = hyperplane.normal().unitOrthogonal();  in ParametrizedLine()
159   return origin() + (direction()*t);   in pointAt()
169           / hyperplane.normal().dot(direction());  in intersectionParameter()