[vtkusers] Change position of text in vtkImagePlaneWidget

DL I inglis.dl at gmail.com
Tue Mar 22 12:52:27 EDT 2016


Hi Jothy

When the widget it first instantiate it calls GenerateText() and sets its
default position to the lower left corner of the renderer:
  vtkCoordinate* coord = this->TextActor->GetPositionCoordinate();
  coord->SetCoordinateSystemToNormalizedViewport();
  coord->SetValue(.01, .01);

so after instantiating the widget, you could do once:
- search the renderer's props for a vtkTextActor, since there is no API to
get it directly from the widget
- then get the position coordinate and change its value as shown above or
per Cory's comments in this thread

Dean



On Tue, Mar 22, 2016 at 9:45 AM, Cory Quammen <cory.quammen at kitware.com>
wrote:

>
> http://www.vtk.org/doc/nightly/html/classvtkActor2D.html#aaca4703dddf59c9bdcf5773f5025a508
>
> or
>
>
> http://www.vtk.org/doc/nightly/html/classvtkActor2D.html#afb72d3b2dbb0a5860f6fc7d46943b637
>
>
> On Tue, Mar 22, 2016 at 1:29 AM, Jothybasu Selvaraj <jothybasu at gmail.com>
> wrote:
> > Hi All
> >
> > I want to change the position of the vtkTextActor (which displays the
> image
> > data value and window level/width). By default its on the lower left
> corner,
> > I already have something displayed there. How can I do this?
> >
> > Any hints?
> >
> > Thanks
> >
> >
> > Jothy
> >
> > _______________________________________________
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>
>
> --
> Cory Quammen
> R&D Engineer
> Kitware, Inc.
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
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