[vtkusers] vtkTextActor align to center of text

[David Lonie]

You'll likely have better luck using vtkTextActor3D or
vtkBillboardTextActor3D. These have vtkTextProperties you can modify
to set things like justification/alignment.

HTH,
Dave

On Thu, Feb 9, 2017 at 6:37 AM, M. Jordan <mjordan at live.at> wrote:
> Hi,
>
> I am creating a 3D text like this:
>
> // create text
> vtkSmartPointer<vtkVectorText> textSource =
>  vtkSmartPointer<vtkVectorText>::New();
> textSource->SetText("TEST");
> textSource->Update();
> // create a mapper for the text
> vtkSmartPointer<vtkPolyDataMapper> txtmapper =
>  vtkSmartPointer<vtkPolyDataMapper>::New();
>  txtmapper->SetInputConnection(transformFilter->GetOutputPort());
> // create a subclass of vtkActor: a vtkFollower that remains facing the
> camera
> vtkSmartPointer<vtkFollower> follower =
> vtkSmartPointer<vtkFollower>::New();
> follower->SetMapper(txtmapper);
>  follower->SetCamera(renderer->GetActiveCamera());
>  follower->SetPosition(10.0,20.0,30.0);
>
> Now the passed follower position is approximately the bottom left corner of
> my text.
>
> How can I achieve a text which is centered about my desired position?
> For example the text "101" should result in a 3D text with the center being
> located in the middle of the "0"
>
> Thank you very much!
>
>
>
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