rtVTK  0.6.0
Constants.h
00001 
00002 /******************************************************************************
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00035 
00036 
00037 #ifndef Core_Constants_h
00038 #define Core_Constants_h
00039 
00040 #include <cmath>
00041 
00042 
00043 #if defined(WIN32)
00044 #  if !defined(M_PI)
00045 #  define M_PI 3.14159265358979323846
00046 #  endif // !defined(M_PI)
00047 #  ifdef max
00048 #    undef max
00049 #  endif // max
00050 #  ifdef min
00051 #    undef min
00052 #  endif // min
00053 #endif
00054 
00055 static const float Pi               = M_PI;
00056 static const float TwoPi            = 2.f*Pi;
00057 static const float FourPi           = 4.f*Pi;
00058 static const float EightPi          = 8.f*Pi;
00059 static const float PiOverTwo        = 0.5f*Pi;
00060 static const float PiOverFour       = 0.25f*Pi;
00061 static const float OneOverPi        = 1.f/Pi;
00062 static const float OneOverTwoPi     = 1.f/TwoPi;
00063 static const float OneOverFourPi    = 1.f/FourPi;
00064 static const float OneOverEightPi   = 1.f/EightPi;
00065 static const float DegreesToRadians = Pi/180.f;
00066 static const float RadiansToDegrees = 180.f/Pi;
00067 
00068 #endif // Core_Constants_h
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