Method get_source_faces

tools/IGL/CellPartition.h:25–25

        MatrixFr get_vertices() const { return m_vertices; }
        MatrixIr get_faces() const { return m_faces; }
        VectorI  get_source_faces() const { return m_source_faces; }

        size_t get_num_cells() const;
        MatrixIr get_cell_faces(const size_t cell_id) const;