[vtkusers] Can't modify the color of the actor even with 'SetColor' fucntion

Nour Mestiri nourmestiri at yahoo.fr
Wed Nov 19 14:19:49 EST 2008

Hi all vtk users,
Can someone tell me how to modify the color of a polydata?
In fact, i have a polydata (a VRML object) which i should display on a window. When i read this file, the object is grey but i want to change its color on white. 
I use this the code below but i have a 'blue' object for each value of 'SetColor()':
vtkPolyDataMapper *mapper = vtkPolyDataMapper::New();
vtkActor *actor = vtkActor::New();
Is there something to modify in this code or the code source of the VRML file?
Thank you for your help.

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