99 lines
2.6 KiB
Plaintext
99 lines
2.6 KiB
Plaintext
//C++ header - Open Scene Graph - Copyright (C) 1998-2001 Robert Osfield
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//Distributed under the terms of the GNU Library General Public License (LGPL)
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//as published by the Free Software Foundation.
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#ifndef __OSG_MATH
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#define __OSG_MATH
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#include <math.h>
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#if defined(WIN32)
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// needed for _isnan & _finite used below.
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#include <float.h>
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#endif
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#if defined(WIN32) || defined (macintosh)
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#include <float.h>
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#define M_E 2.7182818284590452354
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#define M_LOG2E 1.4426950408889634074
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#define M_LOG10E 0.43429448190325182765
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#define M_LN2 0.69314718055994530942
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#define M_LN10 2.30258509299404568402
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#define M_PI 3.14159265358979323846
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#define M_PI_2 1.57079632679489661923
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#define M_PI_4 0.78539816339744830962
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#define M_1_PI 0.31830988618379067154
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#define M_2_PI 0.63661977236758134308
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#define M_2_SQRTPI 1.12837916709551257390
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#define M_SQRT2 1.41421356237309504880
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#define M_SQRT1_2 0.70710678118654752440
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#endif
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// PJA MAC OSX
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// This appears to be the simplest way to get these defined under MACOSX
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// where they arent in math.h
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#ifndef acosf
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#define acosf (float)acos
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#endif
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#ifndef asinf
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#define asinf (float)asin
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#endif
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#ifndef cosf
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#define cosf (float)cos
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#endif
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#ifndef sinf
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#define sinf (float)sin
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#endif
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#ifndef logf
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#define logf (float)log
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#endif
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#ifndef floorf
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#define floorf (float)floor
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#endif
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#ifndef powf
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#define powf (float)pow
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#endif
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#ifndef sqrtf
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#define sqrtf (float)sqrt
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#endif
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namespace osg {
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inline double inDegrees(double angle) { return angle*M_PI/180.0; }
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inline double inRadians(double angle) { return angle; }
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inline double DegreesToRadians(double angle) { return angle*M_PI/180.0; }
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inline double RadiansToDegrees(double angle) { return angle*180.0/M_PI; }
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#ifdef WIN32
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inline bool isNaN(float v) { return ::_isnan(v)!=0; }
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inline bool isNaN(double v) { return ::_isnan(v)!=0; }
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inline bool isInfinite(float v) { return !::_finite(v); }
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inline bool isInfinite(double v) { return !::_finite(v); }
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#elif __sgi
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inline bool isNaN(float v) { return ::isnan(v); }
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inline bool isNaN(double v) { return ::isnan(v); }
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// can't find a function to test for infiniting on sgi yet..
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inline bool isInfinite(float v) { return false; }
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inline bool isInfinite(double v) { return false; }
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#else
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inline bool isNaN(float v) { return ::isnan(v); }
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inline bool isNaN(double v) { return ::isnan(v); }
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inline bool isInfinite(float v) { return ::isinf(v); }
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inline bool isInfinite(double v) { return ::isinf(v); }
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#endif
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};
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#endif // __OSG_MATH
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