[vtkusers] vtkCaptionActor2D text orientation

[Philip Schuchardt]

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!