[vtkusers] picked cell highlight

[David Doria]

On Mon, Sep 27, 2010 at 9:30 PM, czbebe <oka at bpe.es.osaka-u.ac.jp> wrote:

>
> Dear David,
>
> class MouseInteractorStyle
>   ------
>    vtkSmartPointer<vtkUnstructuredGrid> Data;
>    //vtkSmartPointer<vtkPolyData> Data;
>
> main
>    vtkSmartPointer<vtkUnstructuredGrid> ug =
>    vtkSmartPointer<vtkUnstructuredGrid>::New();
>    ------
>    style1->Data = ug;
>
> is all right. I can do it.
> If next cell is selected, previous cell highlight disappeared.
> I want to left it highlighted and also pick next time, want
> to erase it.
> Is it possible？
>
> Best regards,
>
> Oka
>
>
Sure, use a vtkAppendFilter to append the output of the selection filter to
the existing highlighted cells rather than replace them:
http://www.vtk.org/Wiki/VTK/Examples/Cxx/Filters/AppendFilter

David
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