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/*############################################################################*/
/*# #*/
/*# Ambisonic C++ Library #*/
/*# Copyright © 2007 Aristotel Digenis #*/
/*# #*/
/*# Filename: AmbisonicCommons.cpp #*/
/*# Version: 0.1 #*/
/*# Date: 19/05/2007 #*/
/*# Author(s): Aristotel Digenis #*/
/*# Licence: MIT #*/
/*# #*/
/*############################################################################*/
#include "AmbisonicCommons.h"
float DegreesToRadians(float fDegrees)
{
return fDegrees * (float)M_PI / 180.f;
}
float RadiansToDegrees(float fRadians)
{
return fRadians * 180.f / (float)M_PI;
}
unsigned OrderToComponents(unsigned nOrder, bool b3D)
{
if(b3D)
return (unsigned) powf(nOrder + 1.f, 2.f);
else
return nOrder * 2 + 1;
}
unsigned OrderToComponentPosition(unsigned nOrder, bool b3D)
{
unsigned nIndex = 0;
if(b3D)
{
switch(nOrder)
{
case 0: nIndex = 0; break;
case 1: nIndex = 1; break;
case 2: nIndex = 4; break;
case 3: nIndex = 10;break;
}
}
else
{
switch(nOrder)
{
case 0: nIndex = 0; break;
case 1: nIndex = 1; break;
case 2: nIndex = 3; break;
case 3: nIndex = 5; break;
}
}
return nIndex;
}
unsigned OrderToSpeakers(unsigned nOrder, bool b3D)
{
if(b3D)
return (nOrder * 2 + 2) * 2;
else
return nOrder * 2 + 2;
}
char ComponentToChannelLabel(unsigned nComponent, bool b3D)
{
char cLabel = ' ';
if(b3D)
{
switch(nComponent)
{
case 0: cLabel = 'W'; break;
case 1: cLabel = 'Y'; break;
case 2: cLabel = 'Z'; break;
case 3: cLabel = 'X'; break;
case 4: cLabel = 'V'; break;
case 5: cLabel = 'T'; break;
case 6: cLabel = 'R'; break;
case 7: cLabel = 'U'; break;
case 8: cLabel = 'S'; break;
case 9: cLabel = 'Q'; break;
case 10: cLabel = 'O'; break;
case 11: cLabel = 'M'; break;
case 12: cLabel = 'K'; break;
case 13: cLabel = 'L'; break;
case 14: cLabel = 'N'; break;
case 15: cLabel = 'P'; break;
};
}
else
{
switch(nComponent)
{
case 0: cLabel = 'W'; break;
case 1: cLabel = 'X'; break;
case 2: cLabel = 'Y'; break;
case 3: cLabel = 'U'; break;
case 4: cLabel = 'V'; break;
case 5: cLabel = 'P'; break;
case 6: cLabel = 'Q'; break;
};
}
return cLabel;
}
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