
/*!
\ingroup PkgCircularKernel3GeometricConcepts
\cgalConcept

\brief

\cgalRefines{Kernel::ConstructSphere_3}

\sa `SphericalKernel::GetEquation`

*/

class SphericalKernel::ConstructSphere_3 {
public:

/// \name Operations
/// A model of this concept must provide:
/// @{

/*!
Returns the diametral sphere of the supporting circle of arc `a`.
*/
SphericalKernel::Sphere_3
operator()(const SphericalKernel::Circular_arc_3 & a);

/*!
Constructs a sphere from an equation.
*/
SphericalKernel::Sphere_3 operator()
(const SphericalKernel::Polynomial_2_3 &p);

/// @}

}; /* end SphericalKernel::ConstructSphere_3 */

