[vtkusers] encode string for VtkVectorText

[David Lonie]

vtkVectorText is hardcoded to only support a very limited character
set, since it manually draws the text as polydata.

The other text rendering classes (vtkTextActor, vtkTextActor3D,
vtkBillboardTextActor3D, vtkTextMapper) all support UTF-8 when a
custom font file is loaded (see vtkTextProperty::SetFontFamily docs).

On Tue, Mar 21, 2017 at 2:45 PM, Jose Barreto <jose.de.paula at live.com> wrote:
> How does vtk interpret strings?
>
> I have a vtkVectorText attached to a vtkFollower and am trying to pass a
> string in latin1 format (I tried with utf8 too) but this fails.
>
> VtkVectorText :: SafeDownCast (vtkPolyDataMapper :: SafeDownCast (Text->
> GetMapper ()) -> GetInputAlgorithm ()) -> SetText ("ÓÉóéàÁÁá);
>
>
>
> --
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