distance_segment_point.h

// Description: Distance between a line segment and a point

#ifndef PASTELGEOMETRY_DISTANCE_SEGMENT_POINT_H
#define PASTELGEOMETRY_DISTANCE_SEGMENT_POINT_H

#include "pastel/geometry/shape/segment.h"
#include "pastel/sys/vector.h"

namespace Pastel
{

    //! Euclidean distance between a line segment and a point.
    /*!
   This is a convenience function which returns
   std::sqrt(distance2(segment, point)).
   */
    template <typename Real, integer N>
    Real distance(
        const Segment<Real, N>& segment,
        const Vector<Real, N>& point);

    //! Squared Euclidean distance between a line segment and a point.
    /*!
   Preconditions:
   segment.n() == point.n()

   Time complexity: O(segment.n())
   */
    template <typename Real, integer N>
    Real distance2(
        const Segment<Real, N>& segment,
        const Vector<Real, N>& point);

}

#include "pastel/geometry/distance/distance_segment_point.hpp"

#endif