78 lines
1.5 KiB
Plaintext
78 lines
1.5 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) || defined (macintosh)
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#include <float.h>
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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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// define the stand trig values
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const double PI = 3.14159265358979323846;
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const double PI_2 = 1.57079632679489661923;
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const double PI_4 = 0.78539816339744830962;
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inline double inDegrees(double angle) { return angle*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*PI/180.0; }
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inline double RadiansToDegrees(double angle) { return angle*180.0/PI; }
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#if defined(WIN32) && !defined(__CYGWIN__)
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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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#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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#endif
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};
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#endif // __OSG_MATH
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