[vtkusers] Change the color of a polydata

[David E DeMarle]

VTK can color things in a variety of ways, by default it tries to
color things to show data values associated with each point or cell.

   vtkActor->GetMapper() returns a vtkMapper

vtkMapper has a rich set of controls over exactly which and how values
are converted to colors through the Mapper's lookup table.

Alternatively, if you call

  vtkMapper->SetScalarVisibilityOff()

the values and lookuptable are ignored. Then you use:

  vtkActor->GetProperty() to get a vtkProperty()

and then call

  vtkProperty()->SetColor(R,G,B)

to set the color of the entire object.

On Sat, Feb 7, 2009 at 6:16 AM, Nour Mestiri <nourmestiri at yahoo.fr> wrote:
> Hi all vtk users.
> I have many polydata saved as VTP files. When i display any one of those
> images, i always have a 'blue' data.
> I want to know haow to modify the color of a VTP image?
> Thank you so much
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-- 
David E DeMarle
Kitware, Inc.
R&D Engineer
28 Corporate Drive
Clifton Park, NY 12065-8662
Phone: 518-371-3971 x109