digraph AlignAndFocusPowder {
  label="AlignAndFocusPowder Flowchart"
  $global_style

  subgraph params {
    $param_style
    InputWorkspace
    OutputWorkspace
    RemovePromptPulseWidth
    CompressTolerance
    CropWaveLengthMin
    MaskWorkspace
    CalFileName
    OffsetsWorkspace
    GroupingWorkspace
    UnwrapRef
    LowResRef
    params1 [label="Params"]
    params2 [label="Params"]
  }

  subgraph algoritms {
    $algorithm_style
    removePromptPulse [label="RemovePromptPulse v1"]
    compressEvents    [label="CompressEvents v1"]
    cropWorkspace     [label="CropWorkspace v1"]
    maskDetectors     [label="MaskDetectors v1"]
    rebin1            [label="Rebin v1"]
    rebin2            [label="Rebin v1"]
    resampleX         [label="ResampleX v1"]
    alignDetectors    [label="AlignDetectors v1"]
    convertUnits1     [label="ConvertUnits v1\nTime-of-Flight"]
    convertUnits2     [label="ConvertUnits v1\nd-spacing"]
    convertUnits3     [label="ConvertUnits v1\nTime-of-Flight"]
    unwrapSNS         [label="UnwrapSNS v1"]
    removeLowResTOF   [label="RemoveLowResTOF v1"]
    diffFocus         [label="DiffractionFocussing v2"]
    sortEvents        [label="SortEvents v1"]
    editGeom          [label="EditInstrumentGeometry v1"]
    loadCalFile       [label="LoadCalFile v1"]
  }

  subgraph decisions {
    $decision_style
    isEventWorkspace1 [label="Is event workspace?"]
    isEventWorkspace2 [label="Is event workspace?"]
    isDspace1         [label="Is d-space binning?"]
    isDspace2         [label="Is d-space binning?"]
    ifParams          [label="LRef, minwl, or\nDIFCref specified?"]
  }


  InputWorkspace         -> isEventWorkspace1

  isEventWorkspace1      -> compressEvents       [label="Yes"]
  CompressTolerance      -> compressEvents

  compressEvents         -> cropWorkspace

  isEventWorkspace1      -> cropWorkspace        [label="No"]
  CropWaveLengthMin      -> cropWorkspace
  cropWorkspace          -> removePromptPulse

  RemovePromptPulseWidth -> removePromptPulse

  removePromptPulse      -> maskDetectors
  MaskWorkspace          -> maskDetectors
  maskDetectors          -> isDspace1
  isDspace1              -> resampleX            [label="Yes"]
  resampleX              -> alignDetectors
  isDspace1              -> rebin1               [label="No"]
  params1                -> rebin1
  rebin1                 -> alignDetectors
  OffsetsWorkspace       -> alignDetectors
  alignDetectors         -> ifParams

  ifParams               -> isDspace2            [label="No"]
  ifParams               -> convertUnits1        [label="Yes"]
  convertUnits1          -> unwrapSNS
  UnwrapRef              -> unwrapSNS
  unwrapSNS              -> removeLowResTOF
  LowResRef              -> removeLowResTOF
  removeLowResTOF        -> convertUnits2
  convertUnits2          -> isDspace2

  isDspace2              -> diffFocus            [label="No"]
  isDspace2              -> rebin2               [label="Yes"]
  params2                -> rebin2
  rebin2                 -> diffFocus
  GroupingWorkspace      -> diffFocus
  diffFocus              -> isEventWorkspace2
  isEventWorkspace2      -> sortEvents           [label="Yes"]
  isEventWorkspace2      -> editGeom             [label="No"]
  sortEvents             -> editGeom
  editGeom               -> convertUnits3
  convertUnits3          -> OutputWorkspace

  CalFileName            -> loadCalFile
  loadCalFile            -> OffsetsWorkspace
  loadCalFile            -> GroupingWorkspace
}