ref: 0373255087377122eeb10e006ffb8aa1b57e611c dir: /libgeometry/triangle.c/
#include <u.h> #include <libc.h> #include "../geometry.h" Point3 centroid(Triangle3 t) { return divpt3(addpt3(t.p0, addpt3(t.p1, t.p2)), 3); }