# vtk DataFile Version 2.0
octagonal tube
ASCII
DATASET POLYDATA
POINTS 4 float
-.7 -.8 -.368384
-.7  .3 -.368384
1.   .3 -.368384
1.  -.8 -.368384
POLYGONS 1 5
4 0 1 2 3
CELL_DATA 1
SCALARS base float 1
LOOKUP_TABLE difference
0.
LOOKUP_TABLE difference 1
.75 .75 .75 1.