Function compute_barycentric_coord

tools/Wires/Inflator/PeriodicInflator.cpp:20–38

namespace PeriodicInflatorHelper {
    Vector3F compute_barycentric_coord(
            const VectorF& p,
            const VectorF& a,
            const VectorF& b,
            const VectorF& c) {
        VectorF v0 = b-a;
        VectorF v1 = c-a;
        VectorF v2 = p-a;
        Float d00 = v0.dot(v0);
        Float d01 = v0.dot(v1);
        Float d11 = v1.dot(v1);
        Float d20 = v2.dot(v0);
        Float d21 = v2.dot(v1);
        Float denom = d00 * d11 - d01 * d01;
        Float v = (d11 * d20 - d01 * d21) / denom;
        Float w = (d00 * d21 - d01 * d20) / denom;
        Float u = 1.0 - v - w;
        return Vector3F(u, v, w);
    }
}
using namespace PeriodicInflatorHelper;