[vtkusers] vtkPointPicker returning wrong coords

Jothybasu Selvaraj jothybasu at gmail.com
Tue May 29 08:02:39 EDT 2012


Are you again changing your imaegData to
vtkImageChangeInformation::GetOutput() ?

Jothy

On Tue, May 29, 2012 at 12:58 PM, Jonathan Ruiz Peinado <
jonathan.ruiz3 at gmail.com> wrote:

> Yes I do, sorry I didn't write it
> normalized is an  vtkImageChangeInformation object
>
>
> 2012/5/29 Jothybasu Selvaraj <jothybasu at gmail.com>
>
>> Are you using vtkImageChangeInformation?
>>
>> Jothy
>>
>> On Tue, May 29, 2012 at 12:23 PM, Jonathan Ruiz Peinado <
>> jonathan.ruiz3 at gmail.com> wrote:
>>
>>> Hi, I'm picking the a point location using vtkPointPicker, everything
>>> was working well until I changed the origin of the source image as I'm
>>> showing below:
>>>
>>> normalized.SetInputConnection( reader.GetOutputPort() );
>>> ****normalized.SetOutputOrigin(0.0, 0.0, 0.0);*****
>>> normalized.SetOutputSpacing( spacing[0], spacing[1], ippzspacing );
>>> normalized.Update();
>>>
>>> Point picker is ignoring this new origin and is giving same cords as
>>> before, using the centre of the image as the origin instead of use
>>> the right top corner.
>>>
>>> double[] axialMapperPosition = new double[4];
>>>  mouseXYAxial = e.getPoint();
>>>  vtkPointPicker pickerAxial = new vtkPointPicker();
>>>
>>>  int pickTest = pickerAxial.Pick(mouseXYAxial.x, mouseXYAxial.y, 0.0,
>>> vtkPanel.GetRenderer());
>>>
>>> if (pickTest != 0) {
>>>           axialMapperPosition = pickerAxial.GetMapperPosition();
>>>  ;
>>>           System.out.println(" x:"+axialMapperPosition[0] + "
>>> y:"+axialMapperPosition[1] + " z:" +axialMapperPosition[2]);
>>>
>>> }
>>>
>>> what I'm missing here?
>>>
>>> Thanks
>>>
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>>
>>
>> --
>> Jothy
>>
>>
>


-- 
Jothy
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