[vtkusers] DelimitedTextReader

[Luca Cinquepalmi]

Hi,
I'm trying to execute the example presented at

http://www.vtk.org/Wiki/VTK/Examples/Cxx/InfoVis/DelimitedTextReader

which read a csv file (x y z n) and visualize it. When i visualize my 
file the image is all black, while it should have the color/value 
expressed in "n" value. In my case n is a GrayScale value. How can i 
modify it? I think i should modify the command

actor->GetProperty()->SetColor(1,0,0);

bu I don't know how. Can anybody help me? Thanks a lot.

Luca
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