SF_Math.h

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/*
* Copyright 2016 Autodesk, Inc. All rights reserved.
* Use of this software is subject to the terms of the Autodesk license agreement and any attachments or Appendices thereto provided at the time of installation or download,
* or which otherwise accompanies this software in either electronic or hard copy form, or which is signed by you and accepted by Autodesk.
*/

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

PublicHeader:   Kernel
Filename    :   KY_Math.h
Content     :   Math inline functions and macro definitions
Created     :   July 7, 2005
Authors     :   Michael Antonov, Maxim Shemanarev

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

#ifndef INC_KY_Kernel_Math_H
#define INC_KY_Kernel_Math_H

#include "gwnavruntime/kernel/SF_Types.h"

#include <math.h>
#include <stdlib.h>


// *** Useful math constants

#define KY_MATH_EPSILON                1.0e-12                   // epsilon
#define KY_MATH_E                      2.7182818284590452354     // e
#define KY_MATH_LOG2E                  1.4426950408889634074     // log_2 e
#define KY_MATH_LOG10E                 0.43429448190325182765    // log_10 e
#define KY_MATH_LN2                    0.69314718055994530942    // log_e 2
#define KY_MATH_LN10                   2.30258509299404568402    // log_e 10
#define KY_MATH_PI                     3.14159265358979323846    // pi
#define KY_MATH_PI_2                   1.57079632679489661923    // pi/2
#define KY_MATH_PI_3                   1.04719755119659774615    // pi/3
#define KY_MATH_PI_4                   0.78539816339744830962    // pi/4
#define KY_MATH_1_PI                   0.31830988618379067154    // 1/pi
#define KY_MATH_2_PI                   0.63661977236758134308    // 2/pi
#define KY_MATH_2_SQRTPI               1.12837916709551257390    // 2/sqrt(pi)
#define KY_MATH_SQRT2                  1.41421356237309504880    // sqrt(2)
#define KY_MATH_SQRT1_2                0.70710678118654752440    // 1/sqrt(2)
#define KY_MATH_DEGTORAD               0.01745329251994329577    // pi/180
#define KY_MATH_TAN_PI_8               0.41421356237309504880    // tan(pi/8)
#define KY_MATH_SIN_PI_4               0.70710678118654752440    // sin(pi/4)

// Degrees to Radians
#define KY_DEGTORAD(d)                 ((d) * KY_MATH_PI / 180.0)
#define KY_RADTODEG(r)                 ((r) * 180.0 / KY_MATH_PI)

#endif // INC_KY_Kernel_Math_H