&parameters
  lat_file = 'LCLS2_soft.lat'
  target_accuracy = 0.001

  nturns = 100

  start_stop_type = 1
  start_s = 0.
  end_s = -1       ! a negative number here means lat%param%total_length
  track_till =  -1 ! a negative number here means lat%param%total_length

  !start_stop_type = 2
  !start_name = 		'beginning'
  !end_name = 		'end'
  !track_end_name =  'end'

  slice_method = 'bystep'  !'bystep' or 'byelem'
  slice_length = 1.0  ! in meters.  must be present if slice_method is 'bystep'
&end