[vtkusers] vtkImagePlaneWidget and save to jpg

[David Gobbi]

You might have to reset the transform before using it:

transform->Identity();
transform->RotateZ(90);

Other than that, I don't know.  You could try a combination of
vtkImagePermute and vtkImageFlip to rotate the image.

  David

On Tue, Oct 5, 2010 at 5:15 AM, Raúl Ferriz <raul at torresyvalero.com> wrote:
>  El 05/10/2010 13:05, David Gobbi escribió:
>>
>> Hi Raul,
>>
>> I think you want a RotateZ(90) here, because the widget has already
>> transformed the slice from its original orientation to the XY plane.
>>
>>   David
>>
>> On Tue, Oct 5, 2010 at 4:51 AM, Raúl Ferriz<raul at torresyvalero.com>
>>  wrote:
>>>
>>>  Many thanks Dave!
>>>
>>> Now I have another issue: when I save the file to a file, I want that
>>> image
>>> get rotated 90 degrees on Y axis (2D). I tried to do this way:
>>>
>>>        _imgdata = imagePlaneWidget->GetResliceOutput();
>>>        if ( _imgdata )
>>>        {
>>>                    // _imgdata is the image data
>>>                    transform->RotateY ( 90 );
>>>
>>>                    transformFilter->SetTransform ( transform );
>>>                    transformFilter->SetInput ( _imgdata );
>>>
>>>                    _imgcast_->SetOutputScalarTypeToUnsignedChar();
>>>                    _imgcast_->SetInput ( transformFilter->GetOutput() );
>>>                    _imgcast_->Update ();
>>>
>>>                    _writer_->SetFileName ( path );
>>>                    _writer_->SetInput ( _imgcast_->GetOutput () );
>>>                    _writer_->Write();
>>>        }
>>>
>>>
>>> But no rotation is made on saved file.
>
> Hi David,
>
> I tried with RotateX(90), RotateY(90) and RotateZ(90) but nothing changes on
> output files.
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