Function compute_next_map

tools/MeshUtils/EdgeUtils.cpp:15–23

    typedef std::unordered_map<size_t, size_t> IndexHash;

    IndexHash compute_next_map(const MatrixIr& edges) {
        IndexHash next;
        const size_t num_edges = edges.rows();
        for (size_t i=0; i<num_edges; i++) {
            const auto& e = edges.row(i);
            next[e[0]] = e[1];
        }
        return next;
    }

    IndexHash compute_valance(const MatrixIr& edges) {
        IndexHash valance;