encoding  utf-8
centerline
  data cartesian from to dx dy dz
  0 1 5 0 0
  1 2 5 1 0
  2 3 5 0 0
  2 A -5 -1 -5
  A B 5 1 0
  A T 4 0.5 -5
endcenterline

input cave.th2

map m1
  s1
endmap

map m2
  s2
endmap

map m3
  s3
endmap
