[vtkusers] about vtkBMPReader and vtkMarchingCubes

[Chenzhuo]

Hi,all vtkusers
I am much puzzled at the second parameter of the
function vtkMarchingCubes::SetValue(int i,float
value). Now I have a series of BMP images, and I want
to build a 3D model of a series of areas in BMP
images. But I don't know what value(the direct
scalevalue from image or RGB value in image or some
other value) I should give to the parameter.Please
help me!!!

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