BatchConvertAutoCAD.rvb

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' BatchConvertAutoCAD.rvb -- October 2008
' If this code works, it was written by Dale Fugier.
' If not, I don't know who wrote it.
' Works with Rhino 4.0.
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Option Explicit

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' BatchConvertAutoCAD
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Sub BatchConvertAutoCAD()

  ' Make sure RhinoScript does not reinitialize when opening models,
  ' otherwise this script will only process one file.
  Rhino.Command "_-Options _RhinoScript _Reinitialize=_No _Enter _Enter", 0
  
  ' Allow the user to interactively pick a folder
  Dim sFolder
  sFolder = Rhino.BrowseForFolder(, "Select folder to process", "Batch Convert AutoCAD")
  If VarType(sFolder) <> vbString Then Exit Sub
  
  ' Create a file system object
  Dim oFSO
  Set oFSO = CreateObject("Scripting.FileSystemObject") 
  
  ' Get a folder object based on the selected folder
  Dim oFolder
  Set oFolder = oFSO.GetFolder(sFolder)
  
  ' Process the folder
  ProcessFolder oFSO, oFolder
  
  ' Release the objects
  Set oFolder = Nothing
  Set oFSO = Nothing
  
  ' Close the last file processed
  Rhino.DocumentModified False
  Rhino.Command "_-New _None", 0

End Sub

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' ProcessFolder
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Sub ProcessFolder(oFSO, oFolder)

  ' Process all .dwg files in the selected folder
  Dim oFile, strOpen, strSave
  For Each oFile In oFolder.Files
    If LCase(oFSO.GetExtensionName(oFile.Path)) = "dwg" Then
      strOpen = LCase(oFile.Path)
      strSave = LCase(Replace(strOpen, ".dwg", ".3dm", 1, -1, 1))
      ProcessFile strOpen, strSave
    End If
  Next

  ' Comment out the following lines if you do not
  ' want to recursively process the selected folder.
  Dim oSubFolder
  For Each oSubFolder In oFolder.SubFolders
    ProcessFolder oFSO, oSubFolder
  Next

End Sub 

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' ProcessFile
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Sub ProcessFile(strOpen, strSave)
  Rhino.DocumentModified False
  Rhino.Command "_-Open " & Chr(34) & strOpen & Chr(34), 0
  Rhino.Command "_-Zoom _All _Extents", 0
  Rhino.Command "_-SetActiveView _Top", 0
  Rhino.Command "_-Save " & Chr(34) & strSave & Chr(34), 0
End Sub