distance_sq()

float MayaFlux::Kinesis::FeatureMetric::distance_sq ( const Eigen::VectorXd &  a, const Eigen::VectorXd &  b  ) const

inline

Weighted squared distance under this metric.

Parameters

a	Left operand
b	Right operand

Returns

Sum over axes of (weight * wrapped difference) squared

Definition at line 87 of file FeatureExtent.hpp.

    {
        const Eigen::VectorXd d = delta(a, b);
        double acc = 0.0;
        for (Eigen::Index i = 0; i < d.size(); ++i) {
            const double w = (weights.size() == d.size()) ? weights(i) : 1.0;
            const double s = w * d(i);
            acc += s * s;
        }
        return static_cast<float>(acc);
    }

References a, b, delta(), and weights.

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