1DIM: 2 2DIM_OF_WORLD: 2 3 4number of vertices: 5 5number of elements: 3 6 7vertex coordinates: 8 0.0 0.0 9 1.0 0.0 10 0.0 1.0 11-1.0 0.0 12 0.0 -1.0 13 14element vertices: 151 2 0 162 3 0 173 4 0 18 19element boundaries: 200 1 2 210 0 2 221 0 2 23