#ifndef TCG_CONSTS_H

#define TCG_CONSTS_H

/*!

  \file   consts.h

  \brief  This file contains several useful constants to be used with tcg.

*/

//*************************************************************************************

//    TCG  Constants

//*************************************************************************************

namespace tcg

{

//! Contains several useful constants to be used with tcg.

namespace consts

{

const double pi = 3.1415926535897932384626433832795;	  //!< The Pi constant.

const double pi_half = 1.5707963267948966192313216916398; //!< Half of Pi.

const double pi_3half = 3.0 * pi_half;					  //!< Three halves of Pi.

const double pi_twice = 2.0 * pi;						  //!< Twice Pi.

const double rad_to_deg = 180.0 / pi; //!< Radians to degrees factor.

const double deg_to_rad = pi / 180.0; //!< Degrees to radians factor.

const double sqrt2 = 1.4142135623730950488016887242097;		 //!< Square root of 2.

const double sqrt2_half = 0.7071067811865475244008443621048; //!< Half of the square root of 2.

}

} // namespace tcg::consts

#endif // TCG_CONSTS_H