[vtkusers] vtkImageColorViewer and slice orientation

[David Gobbi]

On Mon, Nov 30, 2009 at 1:11 PM, Lic. José M. Rodriguez Bacallao
<jmrbcu at gmail.com> wrote:
> yes, thanks, in fact this is my pattern example but, in this example
> the sagital view is flipped, why is that?

You are complaining because the head is facing right instead of facing
left??  It is still sagittal.

> PS: So, to use ImageReslice for an dicom image viewer is not a problem?

No problem at all.  Plenty of people use it for dicom.  The only
restrictions are the following:

1) the spacing must be constant

2) the gantry must not be tilted

These restrictions are true for all vtkImageData.  Fortunately, CT and
MRI almost always use constant slice spacing, so that is never a
problem.  CT gantry tilt can be fairly common, though, so any dicom
image viewer should check for it.  MR images never have gantry tilt.

    David


>
> On 11/30/09, David Gobbi <david.gobbi at gmail.com> wrote:
>> I didn't give the full path for the example in my last email.  Here it is:
>>
>> VTK/Examples/ImageProcessing/Python/ImageSlicing.py
>>
>>    David
>>
>>
>> On Mon, Nov 30, 2009 at 12:25 PM, David Gobbi <david.gobbi at gmail.com> wrote:
>>> Because no-one has contributed a reslicng image viewer to VTK yet.  I
>>> would like to do so myself, but I don't know when I will have the
>>> time.
>>>
>>> I did submit a python reslicing example to VTK that you might find useful:
>>>
>>> VTK/Examples/Python/ImageSlicing.py
>>>
>>>   David
>>>
>>>
>>> On Mon, Nov 30, 2009 at 11:45 AM, Lic. José M. Rodriguez Bacallao
>>> <jmrbcu at gmail.com> wrote:
>>>> why is that?
>>>>
>>>> On 11/30/09, David Gobbi <david.gobbi at gmail.com> wrote:
>>>>> The only class that uses vtkImageReslice for image viewing is
>>>>> vtkImagePlaneWidget, you can try it to see if it is suitable for your
>>>>> application.  That is the closest thing to a generic reslicing image
>>>>> viewer that VTK has.
>>>>>
>>>>>    David
>>>>>
>>>>>
>>>>> On Mon, Nov 30, 2009 at 9:20 AM, Lic. José M. Rodriguez Bacallao
>>>>> <jmrbcu at gmail.com> wrote:
>>>>>> why vtkImageColorViewer(I think that vtkImageViewer2 too) doesn't use
>>>>>> vtkImageReslice for changing the slice orientation (axial, sagital and
>>>>>> coronal)? I am just curious!!!
>>>>>>
>>>>>> --
>>>>>> Lic. José M. Rodriguez Bacallao
>>>>>> Centro de Biofisica Medica
>>>>>> -----------------------------------------------------------------
>>>>>> Todos somos muy ignorantes, lo que ocurre es que no todos ignoramos lo
>>>>>> mismo.
>>>>>>
>>>>>> Recuerda: El arca de Noe fue construida por aficionados, el titanic
>>>>>> por profesionales
>>>>>> -----------------------------------------------------------------
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>>>>>
>>>>
>>>>
>>>> --
>>>> Lic. José M. Rodriguez Bacallao
>>>> Centro de Biofisica Medica
>>>> -----------------------------------------------------------------
>>>> Todos somos muy ignorantes, lo que ocurre es que no todos ignoramos lo
>>>> mismo.
>>>>
>>>> Recuerda: El arca de Noe fue construida por aficionados, el titanic
>>>> por profesionales
>>>> -----------------------------------------------------------------
>>>>
>>>
>>
>
>
> --
> Lic. José M. Rodriguez Bacallao
> Centro de Biofisica Medica
> -----------------------------------------------------------------
> Todos somos muy ignorantes, lo que ocurre es que no todos ignoramos lo mismo.
>
> Recuerda: El arca de Noe fue construida por aficionados, el titanic
> por profesionales
> -----------------------------------------------------------------
>