set XVIgrids {1.0 m}
set XVIstations {
  {        4.53         2.26 1.5}
  {        0.39        -6.59 1.6}
  {      -16.73       -19.78 1.7}
}
set XVIshots {
  {        4.53         2.26         0.39        -6.59}
  {        0.39        -6.59        -9.65       -27.85}
  {        0.39        -6.59       -21.26        -9.94}
  {        0.39        -6.59       -11.22         5.41}
  {        0.39        -6.59        10.04        27.85}
  {        0.39        -6.59        21.26        19.39}
  {        0.39        -6.59       -16.73       -19.78}
}
set XVIgrid  {-34.8425 -37.1063 19.685 0.0 0.0 19.685 4 4}