text: m1 = scirun_add_module("CreateLatVol")
  m2 = scirun_add_module("ReportFieldInfo")
  scirun_connect_modules(m1, 0, m2, 0)
  scirun_execute_all()
  f1 = scirun_get_module_input_value_by_index(m2, 0)
  
  m3 = scirun_add_module("ReadField")
  scirun_set_module_state(m3, "Filename", "%SCIRUNDATADIR%/Fields/density.pts")
  m4 = scirun_add_module("ReportFieldInfo")
  scirun_connect_modules(m3, 0, m4, 0)
  scirun_execute_all()
  f1 = scirun_get_module_input_value_by_index(m4, 0)
  