# vtk DataFile Version 4.2
vtk output
ASCII
DATASET POLYDATA
POINTS 19 float
0 -75 0 0 75 0 50 75 0 
50 -75 0 12.5 75 0 25 75 0 
37.5 75 0 50 -60 0 50 -45 0 
50 -30 0 50 -15 0 50 0 0 
50 15 0 50 30 0 50 45 0 
50 60 0 12.5 -75 0 25 -75 0 
37.5 -75 0 
LINES 18 54
2 1 4 
2 4 5 
2 5 6 
2 6 2 
2 3 7 
2 7 8 
2 8 9 
2 9 10 
2 10 11 
2 11 12 
2 12 13 
2 13 14 
2 14 15 
2 15 2 
2 0 16 
2 16 17 
2 17 18 
2 18 3 

CELL_DATA 18
FIELD FieldData 1
BlockId 1 18 int
2 2 2 2 2 2 2 2 2 
2 2 2 2 2 2 2 2 2