// unitDirection
//--------------------------------------------------------------------------
fXY Math::unitDirection(const iXY &a, const iXY &b)
{
float angle = radAngle(a, b);
return unitDirection(angle);
} // end Math::unitDirection
// unitDirectionEast
//--------------------------------------------------------------------------
fXY Math::unitDirectionEast(const fXY &northDirection)
{
float angle = radAngle(northDirection.x, northDirection.y);
angle += M_PI / 2.0;
return unitDirection(angle);
} // end Math::unitDirectionEast
// unitDirectionWest
//--------------------------------------------------------------------------
fXY Math::unitDirectionWest(const fXY &northDirection)
{
float angle = radAngle(northDirection.x, northDirection.y);
angle -= PI_DIV_2;
return unitDirection(angle);
} // end Math::unitDirectionWest
double NumVector::degAngle(NumVector &vector1, NumVector &vector2) {
return radAngle(vector1,vector2) * 180 / 3.14159265 ;
}
// degAngle
//--------------------------------------------------------------------------
int Math::degAngle(float x, float y)
{
return rad2Deg(radAngle(x, y));
} // end Math::degAngle
// degAngle
//--------------------------------------------------------------------------
int Math::degAngle(const iXY &a, const iXY &b)
{
return rad2Deg(radAngle(a, b));
} // end Math::degAngle