[vtkusers] Color Problems

[Vidyadhar]

On vtkPolyDataMapper try ScalarVisibilityOff() method. My guess is surface extraction is assigning cell scalars and mapper is by default in ScalarVisibilityOn mode.
Vidyadhar
  ----- Original Message ----- 
  From: ivan gm 
  To: vtkusers at vtk.org 
  Sent: Thursday, July 03, 2008 2:58 PM
  Subject: [vtkusers] Color Problems


  Hello vtk users,

  I'm representing a bone in 3D generated with the vtkContourFilter. The following code shows a red bone and a white light illuminating it.My problem is that I don't know how to configure the actor properties for getting a grey bone iluminated by a white light.

      vtkContourFilter        *contourFilter = vtkContourFilter::New();
      vtkSmoothPolyDataFilter    *smoothFilter = vtkSmoothPolyDataFilter::New();
      vtkPolyDataNormals        *polyDataNormals = vtkPolyDataNormals::New();

      contourFilter->SetInput(islandRemoval->GetOutput());
      contourFilter->Update();
      smoothFilter->SetInputConnection(contourFilter->GetOutputPort());
      smoothFilter->SetNumberOfIterations(30);
      smoothFilter->SetRelaxationFactor(1.0);
      smoothFilter->Update();
      polyDataNormals->SetInputConnection(smoothFilter->GetOutputPort());
      polyDataNormals->Update();

      this->BoneMapper->SetInput(this->polyDataNormals->getOutput());
      this->BoneMapper->ImmediateModeRenderingOn();
      this->BoneMapper->Update();
      this->BoneActor->SetMapper(this->BoneMapper);
      this->BoneActor->GetProperty()->SetColor(1.0, 1.0, 1.0);
      this->BoneActor->GetProperty()->SetAmbientColor(1.0, 1.0, 1.0);
      this->BoneActor->GetProperty()->SetSpecularColor(1.0, 1.0, 1.0);
      this->BoneActor->GetProperty()->SetDiffuse(0.0);
      this->BoneActor->GetProperty()->SetSpecular(10.0);
      this->BoneActor->GetProperty()->SetSpecularPower(5);

  Can anybody helps me?


  Thanks a lot.

  Iván García Martínez - Spain.



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