[vtkusers] vtk6.1 .ExternalData and how to set VTK_DATA_ROOT

[John Anaia]

I have been using VTK 5.x and recently I compiled and installed vtk6.1
successfully from source. However, I do not know how to handle
.ExternalData and could not find any guide online. I
downloaded VTKData-6.1.0.zip and unzipped it to
c:\vtk61\data\.ExternalData\MD5 (1938 items in this folder). On CMake, I
set VTK_Data_STORE=c:\vtk61\data\.ExternalData. After compilation in
VS2012, I found 15 sub-folders from Charts to Views in the VTK binary
folder: C:\vtk61\vtkbin\ExternalData. How do I set up VTK_DATA_ROOT so that
I can run Tcl examples such
as C:\vtk61\code\Examples\DataManipulation\Tcl\pointToCellData.tcl that
requires external data?

As an alternative, I used VTK 6.0.0 data, which worked fine. I would like
to know how to use the new .ExternalData on Windows.

Thank you for your assistance.
John
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