[vtkusers] No vector data defined

[Mohammad Nazrul Islam]

could you please send the header of your data file? Because I was facing the same problem for a long time and finally I solved it.If your data file is in vtk format then I can help you.

thanks.

Mohammad


---------- Original Message ----------------------------------
From: "ivan gm" <ivan.gm.itk at gmail.com>
Date:  Fri, 30 May 2008 11:22:46 +0200

>Hello:
>
>I know there are lots of people who has the same problem as me but, for my
>readings, nobody could solve it.
>I receive the following vtk error:
>
>    ERROR: In .\vtkStreamer.cxx, line 488
>    vtkStreamLine (0D92B060): No vector data defined!
>
>This is my code:
>
>            this->pvtkLine->SetInput(this->temp3d);
>            this->pvtkLine->SetSource(this->pvtkSeeds);
>            this->pvtkLine->SetMaximumPropagationTime(100);
>            this->pvtkLine->SetIntegrationStepLength(.2);
>            this->pvtkLine->SetStepLength(.001);
>            this->pvtkLine->SetNumberOfThreads(1);
>            this->pvtkLine->SetIntegrationDirectionToForward();
>            this->pvtkLine->VorticityOn();
>            this->pvtkLine->Update();
>
>
>this->DistanceMapper->SetInputConnection(this->pvtkLine->GetOutputPort());
>            double tmp[2];
>            this->temp3d->GetScalarRange(tmp);
>            this->DistanceMapper->SetScalarRange(tmp[0], tmp[1]);
>            this->DistanceMapper->ImmediateModeRenderingOn();
>            this->DistanceMapper->Update();
>            this->DistanceActor->SetMapper(this->DistanceMapper);
>            this->DistanceActor->VisibilityOff();
>
>            this->BoneMapper->SetInput(this->temp3d);
>            this->BoneMapper->ImmediateModeRenderingOn();
>            this->BoneMapper->Update();
>            this->BoneActor->SetMapper(this->BoneMapper);
>            this->BoneActor->GetProperty()->SetColor(1.0, 1.0, 0.0);
>            this->BoneActor->GetProperty()->SetDiffuse(0.0);
>            this->BoneActor->GetProperty()->SetSpecular(1.0);
>            this->BoneActor->GetProperty()->SetSpecularPower(5);
>
>I could read that a possible solution is to add the vtkAssignAttribute so I
>did it like this:
>
>            vtkAssignAttribute *aa = vtkAssignAttribute::New();
>            aa->Assign( vtkDataSetAttributes::SCALARS,
>                        vtkDataSetAttributes::VECTORS,
>                        vtkAssignAttribute::POINT_DATA );
>            aa->SetInput( this->temp3d );
>            aa->Update();
>            this->pvtkLine->SetInputConnection(aa->GetOutputPort());
>//            this->pvtkLine->SetInput(this->temp3d);
>            this->pvtkLine->SetSource(this->pvtkSeeds);
>            this->pvtkLine->SetMaximumPropagationTime(100);
>            this->pvtkLine->SetIntegrationStepLength(.2);
>            this->pvtkLine->SetStepLength(.001);
>            this->pvtkLine->SetNumberOfThreads(1);
>            this->pvtkLine->SetIntegrationDirectionToForward();
>            this->pvtkLine->VorticityOn();
>            this->pvtkLine->Update();
>................
>
>But now I have another error:
>
>   Warning: In .\vtkDataSetAttributes.cxx, line 945
>   vtkPointData (0D9F6D00): Can not set attribute Vectors. Incorrect number
>of components.
>
>   ERROR: In .\vtkStreamer.cxx, line 488
>   vtkStreamLine (0D92B060): No vector data defined!
>
>I can't understand what the problem, could anybody helps me!!??
>
>Thanks a lot. I need to solve it.
>
>
>