[vtkusers] Change color of displayed mesh in visu of ICP registration

[Bill Lorensen]

Color values in VTK are from 0,1.

I suspect that
SetColor(2,1,2)
clamps each component to 1,1,1 (white);




On Sat, Jul 27, 2013 at 5:16 PM, agatte <agatakrason at gmail.com> wrote:

> Hi,
>
>
> I have a problem to chanhe display color of mesh in visu of result
> registration icp.
> I followed one of examples from vtk - wiki.
> I was trying to change in :
> sourceActor->GetProperty->SetColor(1,2,3); //
> But it didn't work ;/ It didn't change.
> I need to have different color of meshes to see a difference after applying
> transform.
>
> Could anyone help me please ?
>
> I would appreciate for any help please.
>
> Here I attached a little changed code of this example :
>
> int main(int argc, char *argv[])
> {
>
>         vtkSmartPointer<vtkPolyData> source =
>                 vtkSmartPointer<vtkPolyData>::New();
>         vtkSmartPointer<vtkPolyData> target =
>                 vtkSmartPointer<vtkPolyData>::New();
>
>
>         std::cout<<" Reading data ..."<<std::endl;
>         std::string strSource = &quot;outputMeshXML.vtp&quot;;
>         std::string strTarget = &quot;outputMeshXML2.vtp&quot;;
>
>         vtkSmartPointer&lt;vtkXMLPolyDataReader> sourceReader =
>                 vtkSmartPointer<vtkXMLPolyDataReader>::New();
>         sourceReader->SetFileName(strSource.c_str());
>         sourceReader->Update();
>         source->ShallowCopy(sourceReader->GetOutput());
>
>         vtkSmartPointer<vtkXMLPolyDataReader> targetReader =
>                 vtkSmartPointer<vtkXMLPolyDataReader>::New();
>         targetReader->SetFileName(strTarget.c_str());
>         targetReader->Update();
>         target->ShallowCopy(targetReader->GetOutput());
>
>   // Setup ICP transform
>   vtkSmartPointer<vtkIterativeClosestPointTransform> icp =
>           vtkSmartPointer<vtkIterativeClosestPointTransform>::New();
>   icp->SetSource(source);
>   icp->SetTarget(target);
>   //icp->GetLandmarkTransform()->SetModeToRigidBody();
>   icp->GetLandmarkTransform()->SetModeToAffine();
>   icp->SetMaximumNumberOfIterations(20);
>   icp->StartByMatchingCentroidsOn();
>   icp->Modified();
>   icp->Update();
>
>   // Get the resulting transformation matrix (this matrix takes the source
> points to the target points)
>   vtkSmartPointer<vtkMatrix4x4> m = icp->GetMatrix();
>   std::cout<<"The resulting matrix is : "<<*m<<std::endl;
>
>   // Transform the source by the ICP solution
>   vtkSmartPointer&lt;vtkTransformPolyDataFilter> icpTransformFilter =
>           vtkSmartPointer<vtkTransformPolyDataFilter>::New();
>
> #if VTK_MAJOR_VERSION <= 5
>   icpTransformFilter->SetInput(source);
> #else
>    icpTranformFilter->SetInputData(source);
> #endif
>   icpTransformFilter->SetTransform(icp);
>   icpTransformFilter->Update();
>
>   // Visualize
>   vtkSmartPointer<vtkPolyDataMapper> sourceMapper =
>           vtkSmartPointer<vtkPolyDataMapper>::New();
> #if VTK_MAJOR_VERSION <=5
>   sourceMapper->SetInputConnection(source->GetProducerPort());
> #else
>   sourceMapper->SetInputData(source);
> #endif
>
>  vtkSmartPointer<vtkActor> sourceActor =
>          vtkSmartPointer<vtkActor>::New();
>  sourceActor->SetMapper(sourceMapper);
>  sourceActor->GetProperty()->SetColor(1,1,1);
>  sourceActor->GetProperty()->SetPointSize(3);
>
>  vtkSmartPointer<vtkPolyDataMapper> targetMapper =
>          vtkSmartPointer<vtkPolyDataMapper>::New();
> #if VTK_MAJOR_VERSION <= 5
>  targetMapper->SetInputConnection(target->GetProducerPort());
> #else
>  targetMapper->SetInputData(target);
> #endif
>
>  vtkSmartPointer<vtkActor> targetActor =
>          vtkSmartPointer<vtkActor>::New();
>  targetActor->SetMapper(targetMapper);
>  targetActor->GetProperty()->SetColor(2,1,2);
>  targetActor->GetProperty()->SetPointSize(4);
>
>  vtkSmartPointer<vtkPolyDataMapper> solutionMapper =
>          vtkSmartPointer<vtkPolyDataMapper>::New();
>  solutionMapper->SetInputConnection(icpTransformFilter->GetOutputPort());
>
>  vtkSmartPointer<vtkActor> solutionActor =
>          vtkSmartPointer<vtkActor>::New();
>  solutionActor->SetMapper(solutionMapper);
>  solutionActor->GetProperty()->SetColor(0.4,0.4,0.4);
>  solutionActor->GetProperty()->SetPointSize(3);
>
>  // Create a render, render window and interactor
>   vtkSmartPointer<vtkRenderer> renderer =
>     vtkSmartPointer<vtkRenderer>::New();
>   vtkSmartPointer<vtkRenderWindow> renderWindow =
>     vtkSmartPointer<vtkRenderWindow>::New();
>   renderWindow->AddRenderer(renderer);
>  vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor =
>          vtkSmartPointer<vtkRenderWindowInteractor>::New();
>  renderWindowInteractor->SetRenderWindow(renderWindow);
>
>  sourceActor->GetProperty()->SetColor(1.0, 1.0, 1.0);
>
>  // Add the actor to the scene
>  renderer->AddActor(sourceActor);
>  renderer->AddActor(targetActor);
>  renderer->AddActor(solutionActor);
>
>  renderer->SetBackground(.3, .6, .3);
>
>  // Render and interact
>  renderWindow->Render();
>  renderWindowInteractor->Start();
>
>  return EXIT_SUCCESS;
>
>
>
> }
>
>
> agatte
>
> I attached photo.
>
> Skin_mesh_surface.png
> <http://vtk.1045678.n5.nabble.com/file/n5722285/Skin_mesh_surface.png>
>
>
>
>
>
> --
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> Sent from the VTK - Users mailing list archive at Nabble.com.
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-- 
Unpaid intern in BillsBasement at noware dot com
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