[vtkusers] rotating a 2D actor

[Pankaj Daga]

Hi Kalpathi,

Thanks for replying.

Basically, I have a PNG imag that I read using vtkPNGReader and display it
using vtkActor2D and vtkImageMapper objects. So, I just wanted to do a
simple 2D rotation on it.

Cheers and thanks,

Pankaj

On 10/2/06, Kalpathi Subramanian <krs at uncc.edu> wrote:
>
>  Pankaj:
>
> There is no transformation matrix associated with 2D actors and hence you
> cannot transform it (like rotate).. if you
> need to transform your objects use vtkActor.  Tell us what object you need
> to rotate in your app and we might be
> able to offer suggestions.  (again, read the vtk doc for vtkAcor2D you
> will see this in the description).
>
>     == krs
>
>
> Pankaj Daga wrote:
>
> Hi there,
>
> @Tony: I am a bit confused as to how a vtkCubeAxesActor2D fits into this??? Could you elaborate a bit
>
> Posting my original message again, as the old one is in September thread.
>
> I have a vtkActor2D object that I wish to rotate. Is there a simple way to
> rotate it about its center?
>
> I know all vtkProp3D based objects have built in rotation functions. How can
>
> I implement something similar in a vtkActor2D?
>
> Basically, I have a 2D image that I wish to rotate on the screen.
>
> Thanks,
>
> Pankaj
>
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> --
> K.R.Subramanian                        Phone: (704) 687-8579
> Department of Computer Science         FAX:   (704) 687-3516
> UNC Charlotte, Woodward 435E           Email: krs at uncc.edu
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