Method Project

Modules/Core/include/mitkLine.h:205–219

\brief Project a point onto the line. * * If the direction vector has zero norm, the start point is returned. * * \param point The point to project. * \return The projected point on the line. */

     * \return The projected point on the line.
     */
    itk::Point<TCoordRep, NPointDimension> Project(const itk::Point<TCoordRep, NPointDimension> &point) const
    {
      if (m_Direction.GetNorm() == 0)
        return this->m_Point;

      itk::Vector<TCoordRep, NPointDimension> diff;
      diff = point - this->m_Point;

      itk::Vector<TCoordRep, NPointDimension> normalizedDirection = m_Direction;
      normalizedDirection.Normalize();

      normalizedDirection *= dot_product(diff.GetVnlVector(), normalizedDirection.GetVnlVector());

      return this->m_Point + normalizedDirection;
    }

    /** \brief Test if a point is part of the line segment.
     *