[vtkusers] Transfer function

[Hellice]

hi 
i wanna to  get access to the color transfer function and read from it to
use it some where else

I did that
	this->volumeinfo.PiecewiseColorTransferFun    = vol->GetRGBArray();
	this->volumeinfo.PiecewiseOpacityTransferFun  =
vol->GetCorrectedScalarOpacityArray();
but it does not work when i try to print it it give me 0000000
plz tell me why and How to do the right thing coz i saw the examples and i
serched in mailing list no answer for my prob so helpfuly i post this replay
to have some answers

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