distance_alignedbox_sphere.h

// Description: Distance between an aligned box and a sphere

#ifndef PASTELGEOMETRY_DISTANCE_ALIGNEDBOX_SPHERE_H
#define PASTELGEOMETRY_DISTANCE_ALIGNEDBOX_SPHERE_H

#include "pastel/geometry/shape/alignedbox.h"
#include "pastel/geometry/shape/sphere.h"

namespace Pastel
{

    //! Euclidean distance between a box and a sphere.
    /*!
   Preconditions:
   box.n() == sphere.n()

   Time complexity: O(box.n())

   The box and the sphere are assumed to be solid.
   */
    template <typename Real, integer N>
    Real distance(
        const AlignedBox<Real, N>& box,
        const Sphere<Real, N>& sphere);

    //! Squared Euclidean distance between a box and a sphere.
    /*!
   This is a convenience function which returns
   square(distance(box, sphere)).
   */
    template <typename Real, integer N>
    Real distance2(
        const AlignedBox<Real, N>& box,
        const Sphere<Real, N>& sphere);

}

#include "distance_alignedbox_sphere.hpp"

#endif