Geometry/Angle.hpp

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• Last update: 2023-04-05 23:10:22+09:00
• Include: #include "Geometry/Angle.hpp"

Required by

• Geometry/include.hpp

Code

// angle of a-b-c
Real get_smaller_angle(Point a,Point b,Point c){
    Point v=a-b,w=c-b;
    auto A=atan2(imag(v),real(v));
    auto B=atan2(imag(w),real(w));
    if(A>B) swap(A,B);
    Real res=B-A;
    return min(res,pi*2.0-res);
}

#line 1 "Geometry/Angle.hpp"
// angle of a-b-c
Real get_smaller_angle(Point a,Point b,Point c){
    Point v=a-b,w=c-b;
    auto A=atan2(imag(v),real(v));
    auto B=atan2(imag(w),real(w));
    if(A>B) swap(A,B);
    Real res=B-A;
    return min(res,pi*2.0-res);
}

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