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changed math from class to template

This commit is contained in:
Paolo Cignoni 2004-03-03 22:51:49 +00:00
parent f657ab9c6c
commit 5332b4ac5b
1 changed files with 36 additions and 48 deletions
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84
vcg/math/base.h
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@ -24,6 +24,9 @@
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$Log: not supported by cvs2svn $
Revision 1.3 2004/02/19 15:28:01 ponchio
*** empty log message ***
Revision 1.2 2004/02/13 02:18:57 cignoni
Edited Comments and GPL license
@ -42,65 +45,49 @@ Edited Comments and GPL license
#endif
namespace vcg {
namespace math {
template<class T> class Math
{
public:
static T inline Sqrt(const T v);
static T inline Abs(const T v);
static T inline Cos(const T v);
static T inline Sin(const T v);
static const T MaxVal;
static T ToDeg(const T &a);
static T ToRad(const T &a);
// Unspecialized members
T Clamp( const T & val, const T& minval, const T& maxval);
class MagnitudoComparer
template <class SCALAR>
class MagnitudoComparer
{
public:
inline bool operator() ( const T a, const T b ) { return fabs(a)>fabs(b); }
inline bool operator() ( const SCALAR a, const SCALAR b ) { return fabs(a)>fabs(b); }
};
};
float Math<float>::Sqrt(const float v)
{ return sqrtf(v); }
float Math<float>::Abs(const float v)
{ return fabsf(v); }
float Math<float>::Cos(const float v)
{ return cosf(v); }
float Math<float>::Sin(const float v)
{ return sinf(v); }
float Sqrt(const float v) { return sqrtf(v); }
float Abs(const float v) { return fabsf(v); }
float Cos(const float v) { return cosf(v); }
float Sin(const float v) { return sinf(v); }
double Math<double>::Sqrt(const double v)
{ return sqrt(v); }
double Math<double>::Abs(const double v)
{ return fabs(v); }
double Math<double>::Cos(const double v)
{ return cos(v); }
double Math<double>::Sin(const double v)
{ return sin(v); }
double Sqrt(const double v) { return sqrt(v); }
double Abs(const double v) { return fabs(v); }
double Cos(const double v) { return cos(v); }
double Sin(const double v) { return sin(v); }
const unsigned char Math<unsigned char >::MaxVal = 255;
const char Math<char >::MaxVal = 127;
const unsigned short Math<unsigned short >::MaxVal = 0xFFFFu;
const short Math<short >::MaxVal = 0x7FFF;
const float Math<float >::MaxVal = 3.4E38F;
const int Math<int >::MaxVal = 2147483647;
const long double Math<long double >::MaxVal = 1.2E308;
const double Math<double >::MaxVal = 1.7E308;
const __int64 Math<__int64 >::MaxVal = 9223372036854775807;
template <class SCALAR>
class MaxVal
{
public:
//const unsigned char Math<unsigned char >::MaxVal = 255;
//const char Math<char >::MaxVal = 127;
//const unsigned short Math<unsigned short >::MaxVal = 0xFFFFu;
//const short Math<short >::MaxVal = 0x7FFF;
//const float Math<float >::MaxVal = 3.4E38F;
//const int Math<int >::MaxVal = 2147483647;
//const long double Math<long double >::MaxVal = 1.2E308;
//const double Math<double >::MaxVal = 1.7E308;
//const __int64 Math<__int64 >::MaxVal = 9223372036854775807;
};
/* Some <math.h> files do not define M_PI... */
#ifndef M_PI
#define M_PI 3.14159265358979323846
#endif
template <class SCALAR>
inline SCALAR Math<SCALAR>::Clamp( const SCALAR & val, const SCALAR& minval, const SCALAR& maxval)
inline SCALAR Clamp( const SCALAR & val, const SCALAR& minval, const SCALAR& maxval)
{
if(val < minval) return minval;
if(val > maxval) return maxval;
@ -109,12 +96,13 @@ inline SCALAR Math<SCALAR>::Clamp( const SCALAR & val, const SCALAR& minval, co
inline float Math<float>::ToDeg(const float &a){return a*180.0f/float(M_PI);}
inline float Math<float>::ToRad(const float &a){return float(M_PI)*a/180.0f;}
inline double Math<double>::ToDeg(const double &a){return a*180.0/M_PI;}
inline double Math<double>::ToRad(const double &a){return M_PI*a/180.0;}
inline float ToDeg(const float &a){return a*180.0f/float(M_PI);}
inline float ToRad(const float &a){return float(M_PI)*a/180.0f;}
inline double ToDeg(const double &a){return a*180.0/M_PI;}
inline double ToRad(const double &a){return M_PI*a/180.0;}
} // End namespace
} // End namespace
#endif