/usr/include/OTB-5.8/otbMath.h is in libotb-dev 5.8.0+dfsg-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 | /*=========================================================================
Program: ORFEO Toolbox
Language: C++
Date: $Date$
Version: $Revision$
Copyright (c) Centre National d'Etudes Spatiales. All rights reserved.
See OTBCopyright.txt for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notices for more information.
=========================================================================*/
#ifndef otbMath_h
#define otbMath_h
/**
* otbMath.h defines standard math macros, constants, and other
* parameters.
* All mathematics constans, functions (used in the OTB code) are the vcl version (vcl..., CONST_PI, ).
*/
#include "vcl_cmath.h"
namespace otb {
// For Windows MSVC, defines these macros.
#ifdef _USE_MATH_DEFINES
#define _MATH_DEFINES_DEFINED
#endif
/** Define constants if not define in the "vcl_cmath.h" */
/* Some useful constants. */
const double CONST_E = 2.7182818284590452354; /* e */
const double CONST_LOG2E = 1.4426950408889634074; /* log_2 e */
const double CONST_LOG10E = 0.43429448190325182765; /* log_10 e */
const double CONST_LN2 = 0.69314718055994530942; /* log_e 2 */
const double CONST_LN10 = 2.30258509299404568402; /* log_e 10 */
const double CONST_PI = 3.14159265358979323846; /* pi */
const double CONST_PI_2 = 1.57079632679489661923; /* pi/2 */
const double CONST_PI_4 = 0.78539816339744830962; /* pi/4 */
const double CONST_PI_8 = 0.39269908169872415481; /* pi/8 */
const double CONST_1_PI = 0.31830988618379067154; /* 1/pi */
const double CONST_2_PI = 0.63661977236758134308; /* 2/pi */
const double CONST_2PI = 6.28318530717958647693; /* 2*pi */
const double CONST_PI_180 = 0.01745329251994329577; /* pi/180 */
const double CONST_180_PI = 57.2957795130823208768; /* 180/pi */
const double CONST_LNPI = std::log(CONST_PI); /* ln(pi)*/
const double CONST_SQRTPI = std::sqrt(CONST_PI); /* sqrt(pi)*/
const double CONST_2_SQRTPI = 1.12837916709551257390; /* 2/sqrt(pi) */
const double CONST_SQRT2 = 1.41421356237309504880; /* sqrt(2) */
const double CONST_SQRT1_2 = 0.70710678118654752440; /* 1/sqrt(2) */
const double CONST_SQRT3 = 1.73205080756887729353; /* sqrt(3) */
const double CONST_EULER = 0.57721566490153286060; /* euler constant*/
/* The above constants are not adequate for computation using `long double's.
Therefore we provide as an extension constants with similar names as a
GNU extension. Provide enough digits for the 128-bit IEEE quad. */
#ifdef __USE_GNU
const long double CONST_El = 2.7182818284590452353602874713526625L; /* e */
const long double CONST_LOG2El = 1.4426950408889634073599246810018921L; /* log_2 e */
const long double CONST_LOG10El = 0.4342944819032518276511289189166051L; /* log_10 e */
const long double CONST_LN2l = 0.6931471805599453094172321214581766L; /* log_e 2 */
const long double CONST_LN10l = 2.3025850929940456840179914546843642L; /* log_e 10 */
const long double CONST_PIl = 3.1415926535897932384626433832795029L; /* pi */
const long double CONST_PI_2l = 1.5707963267948966192313216916397514L; /* pi/2 */
const long double CONST_PI_4l = 0.7853981633974483096156608458198757L; /* pi/4 */
const long double CONST_PI_8l = 0.3926990816987241548078304229099379L; /* pi/8 */
const long double CONST_2_PIl = 0.6366197723675813430755350534900574L; /* 2/pi */
const long double CONST_2_SQRTPIl = 1.1283791670955125738961589031215452L; /* 2/sqrt(pi) */
const long double CONST_2PIl = 6.2831853071795864769252867665590058L; /* 2*pi */
const long double CONST_PI_180l = 0.0174532925199432957692369076848861L; /* pi/180 */
const long double CONST_180_PIl = 57.295779513082320876798154814105170L; /* 180/pi */
// Defined but not used?
//const long double CONST_LNPIl = std::log(CONST_PIl); /* ln(pi)*/
//const long double CONST_SQRTPIl = std::sqrt(CONST_PIl); /* sqrt(pi)*/
const long double CONST_SQRT2l = 1.4142135623730950488016887242096981L; /* sqrt(2) */
const long double CONST_SQRT1_2l = 0.7071067811865475244008443621048490L; /* 1/sqrt(2) */
const long double CONST_SQRT3l = 1.7320508075688772935274463415058724L; /* sqrt(3) */
const long double CONST_EULERl = 0.5772156649015328606065120900824024L; /* euler constant*/
#endif
template <typename T> T InverseValue(const T & value)
{
return ((value > 0 || value < 0) ? 1/value : 0);
}
template <typename T> T SignOfValue(const T & value)
{
return (value > 0) ? 1 : ((value < 0) ? -1 : 0);
}
}
#endif
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