1DIM: 2 2DIM_OF_WORLD: 2 3 4number of vertices: 4 5number of elements: 2 6 7vertex coordinates: 8 0.0 0.0 9 1.0 0.0 10 1.0 1.0 11 0.0 1.0 12 13element vertices: 142 0 1 150 2 3 16 17element boundaries: 18-1 -1 0 19-1 -1 0 20