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#include "geometry/angles.hpp"
namespace ang
{
double AngleIn2PI(double ang)
{
double const period = 2.0 * math::pi;
ang = fmod(ang, period);
if (ang < 0.0)
ang += period;
if (my::AlmostEqualULPs(period, ang))
return 0.0;
return ang;
}
double GetShortestDistance(double rad1, double rad2)
{
double const period = 2.0 * math::pi;
rad1 = fmod(rad1, period);
rad2 = fmod(rad2, period);
double res = rad2 - rad1;
if (fabs(res) > math::pi)
{
if (res < 0.0)
res = period + res;
else
res = - period + res;
}
return res;
}
double GetMiddleAngle(double a1, double a2)
{
double ang = (a1 + a2) / 2.0;
if (fabs(a1 - a2) > math::pi)
{
if (ang > 0.0)
ang -= math::pi;
else
ang += math::pi;
}
return ang;
}
}
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