| X: | Array of 32 bit Reals [nodes = 0..6] grid: element grid_location: node |
| Y: | Array of 32 bit Reals [nodes = 0..6] grid: element grid_location: node |
| element: | Array of 32 bit Integers [three = 0..2][tris = 0..5] cell_type: tri_ccw index_origin: 1 coordinates_node: X Y |
| nodedata: | Array of 32 bit Reals [nodes = 0..6] grid: element grid_location: node |
| celldata: | Array of 32 bit Reals [tris = 0..5] grid: element grid_location: center |