[vtkusers] modify a text in the renderer with the mose move event

[Jérôme]

Hi,

If this part of code is inside your MoveMouse callback function, then you
create a new actor as soon as you move, without hiding/removing the previous
one.

2 solutions, if this is the problem:
- remove the actor before adding a new one
- make Tactorx a member and instanciate it only once

HTH
Jerome

2009/11/18 RimAY <rim.ayari at gmail.com>

>
> Dear All ,
> Can someone give me an idea how can i change a text in the renderer with
> the
> mouse move event.
> I try with vtktextactor this is the part of my code:
>
> Tactorx = vtkTextActor()
> Tactorx.SetInput(cx)
> Tactorx.SetDisplayPosition(70,170)
> Tactorx.GetTextProperty().SetJustificationToCentered()
> renderer.AddActor(Tactorx)
> Tactorx.Modified()
>
> cx change its value with the mose move, i get the new value above the
> ancien
> one, the result is an illegible text :(
>
> Thanks a lot
>
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