[vtkusers] Problem running /Examples/GUI/Tcl/CameraAndSliderWidgets.tcl

[ELENA S SLOBOUNOVA]

Hello 

 
I was trying to run example which demonstrates <a class="el"
href="http://www.vtk.org/doc/nightly/html/classvtkCameraRepresentation.html">vtkCameraRepresentation</a> & <a class="el" href="http://www.vtk.org/doc/nightly/html/classvtkCameraInterpolator.html">vtkCameraInterpolator</a>
but it gives me error mesage (see below) and does not run. 


$ vtk CameraAndSliderWidgets.tcl
Error in startup script: invalid command name "vtkCameraRepresentation"
    while executing
"vtkCameraRepresentation cameraRep"
    (file "CameraAndSliderWidgets.tcl" line 81)

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
This is the line 81:
vtkCameraRepresentation cameraRep
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


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