[vtkusers] vtkCaptionActor2D text orientation
Philip Schuchardt
ohc at vt.edu
Fri Mar 30 15:03:56 EDT 2007
My experience with the caption actors that is that they fairly limited and
annoying because the text changes size with different lengths. I feel that
the vtkTextActor's are fairly slow because of anti-aliasing(In 5.0 you can't
turn anti-aliasing off :( ). If you try to add lots of text actors,
preformace will drop considerably.
Philip Schuchardt
On Thursday 29 March 2007 7:36 am, Jesús Spínola wrote:
> Hi,
>
> I'm using vtkCaptionActor2D to make annotations over images with
> vtkImageViewer2. Sometimes is needed to make this annotations with a
> different orientation rather than the usual "Left to Right" way, for
> example upside-down in right to left way, or vertically in bottom to up way
> or viceversa.
>
> I figured this can be done getting the vtkTextProperty and then setting the
> orientation with the SetOrientation method. The fact is the text is always
> displayed in the usual left-to-right way. I've tried with 0, 90, 180 and
> 270 degrees and it always displays with the same orientation.
>
> Do I have to take into account another parameters to show the text in the
> desired orientation? How can I achieve this?
>
> Thanks in advance!
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