' COPYRIGHT DASSAULT SYSTEMES 2002
Option Explicit

' ***********************************************************************
'   Purpose     : Change viewpoint to an engineering view defined by a series of parameters.
'                 This macro is a sample: the presented engineering view has to be reworked knowing industrial standards.
'   Assumptions : A CATProduct document should be active.
'   Author      : 
'   Languages   : VBScript
'   Locales     : English
'   CATIA Level : V5R7
' ***********************************************************************
Sub CATMain()

  ' Parameters
  Const Front  = 0
  Const Back   = 1
  Const Right  = 2
  Const Left   = 3
  Const Bottom = 4
  Const Top    = 5
  Const Iso    = 6
  Const Custom = 7

  Const Sight = 0
  Const Up    = 1

  Const X = 0
  Const Y = 1
  Const Z = 2

  Dim StdDirection(7,1,2)

  StdDirection(Front , Sight, X) =  1.
  StdDirection(Front , Sight, Y) =  0.
  StdDirection(Front , Sight, Z) =  0.
  StdDirection(Front , Up   , X) =  0.
  StdDirection(Front , Up   , Y) =  0.
  StdDirection(Front , Up   , Z) =  1.

  StdDirection(Back  , Sight, X) = -1.
  StdDirection(Back  , Sight, Y) =  0.
  StdDirection(Back  , Sight, Z) =  0.
  StdDirection(Back  , Up   , X) =  0.
  StdDirection(Back  , Up   , Y) =  0.
  StdDirection(Back  , Up   , Z) =  1.

  StdDirection(Right , Sight, X) =  0.
  StdDirection(Right , Sight, Y) =  1.
  StdDirection(Right , Sight, Z) =  0.
  StdDirection(Right , Up   , X) =  0.
  StdDirection(Right , Up   , Y) =  0.
  StdDirection(Right , Up   , Z) =  1.

  StdDirection(Left  , Sight, X) =  0.
  StdDirection(Left  , Sight, Y) = -1.
  StdDirection(Left  , Sight, Z) =  0.
  StdDirection(Left  , Up   , X) =  0.
  StdDirection(Left  , Up   , Y) =  0.
  StdDirection(Left  , Up   , Z) =  1.

  StdDirection(Bottom, Sight, X) =  0.
  StdDirection(Bottom, Sight, Y) =  0.
  StdDirection(Bottom, Sight, Z) =  1.
  StdDirection(Bottom, Up   , X) =  0.
  StdDirection(Bottom, Up   , Y) =  1.
  StdDirection(Bottom, Up   , Z) =  0.

  StdDirection(Top   , Sight, X) =  0.
  StdDirection(Top   , Sight, Y) =  0.
  StdDirection(Top   , Sight, Z) = -1.
  StdDirection(Top   , Up   , X) =  0.
  StdDirection(Top   , Up   , Y) =  1.
  StdDirection(Top   , Up   , Z) =  0.

  StdDirection(Iso   , Sight, X) = -1./ Sqr(3)
  StdDirection(Iso   , Sight, Y) = -1./ Sqr(3)
  StdDirection(Iso   , Sight, Z) = -1./ Sqr(3)
  StdDirection(Iso   , Up   , X) = -1./ Sqr(6)
  StdDirection(Iso   , Up   , Y) = -1./ Sqr(6)
  StdDirection(Iso   , Up   , Z) =  2./ Sqr(6)

  StdDirection(Custom, Sight, X) = -1./ Sqr(2)
  StdDirection(Custom, Sight, Y) = -1./ Sqr(2)
  StdDirection(Custom, Sight, Z) =  0.
  StdDirection(Custom, Up   , X) =  0.
  StdDirection(Custom, Up   , Y) =  0.
  StdDirection(Custom, Up   , Z) =  1.

  ' Engineering view do display
  Dim iIndView As Integer
  iIndView = Custom ' <==== To be changed on the different macros ====

  ' Get the viewer
  Dim oViewer As Viewer
  Set oViewer = CATIA.ActiveWindow.ActiveViewer

  ' Get the viewpoint
  Dim oViewpoint As Viewpoint3D
  Set oViewpoint = oViewer.Viewpoint3D

  ' Get the current parameters
  Dim Origin(2)
  oViewpoint.GetOrigin Origin
  Dim SightDirection(2)
  oViewpoint.GetSightDirection SightDirection
  Dim Focus As Double
  Focus = oViewpoint.FocusDistance

  ' Compute the new parameters
  Dim StdSightDirection(2)
  Dim StdUpDirection(2)
  Dim I As Integer
  For I = 0 to 2
    StdSightDirection(I) = StdDirection(iIndView,Sight,I)
    StdUpDirection(I) = StdDirection(iIndView,Up,I)
    Origin(I) = Origin(I) + Focus*(SightDirection(I) - StdSightDirection(I))
  Next

  ' Change the viewpoint
  oViewpoint.PutOrigin Origin
  oViewpoint.PutSightDirection StdSightDirection
  oViewpoint.PutUpDirection StdUpDirection
  oViewpoint.ProjectionMode = catProjectionCylindric

  ' Update the viewer
  oViewer.Update

  Set oViewpoint = Nothing
  Set oViewer = Nothing

End Sub