[vtkusers] Someone can help? - vtkVolume with ITK

[Mathieu Malaterre]

Wagner,

	[Please CC the mailing list as the might interest other users]

	During dvpt process I guess you can read/write temporary files. So for 
instance, you read you image, you extract your bone or whatever save it 
to a file that vtk can read. And then just play with the different 
test/example found in VTK to do rendering (using the temporary files).

	Does that make sense ?

Mathieu

Wagner Sales wrote:
> Thank's so much, Mathieu.
> Now, I'am understanding why no answer... my post are confused.. :(
> I can read a couple of images with the volume readers (extracted from 
> example):
> 
> vtkVolume16Reader v16
>  v16 SetDataDimensions 64 64
>  [v16 GetOutput] SetOrigin 0.0 0.0 0.0
>  v16 SetDataByteOrderToLittleEndian
>  v16 SetFilePrefix "$VTK_DATA_ROOT/Data/headsq/quarter"
>  v16 SetImageRange 1 93
>  v16 SetDataSpacing 3.2 3.2 1.5
> 
> Then, I have:
> 
>     v16 SetFilePrefix "$VTK_DATA_ROOT/Data/headsq/quarter" // will set 
> the file prefix ( directory );
>     v16 SetImageRange 1 93 // will set range of images
>     v16 SetDataSpacing 3.2 3.2 1.5 // finally, the positions between slices
> 
> That's pretty simple and good. But I don't need to read the images. 
> First, I read the images and make some segmatations operations. In other 
> words, my images does not contains every data, e.g: may be just the 
> bone, extracted by the segmentation process.
> Well, I have the data and the position, not a couple of file. Then, I 
> need to put image by image in a volume, of course, setting the space 
> between the last image ( v16 SetDataSpacing 3.2 3.2 1.5 assumes the 
> space are the same for all images ).
> Looking in the documentation of the class ( 
> http://www.vtk.org/doc/nightly/html/classvtkVolumeRayCastMapper-members.html 
> ), I not see ( clearly to me ) some way to make that. I was looked in 
> All Members to see the inheritance implementation.
> 
> 
> Wagner
> 
>     
>     
> 
> 
> 
> Mathieu Malaterre wrote:
> 
>> Wagner,
>>
>>     There are two approachs -I am not sure I understand which one you 
>> want-.
>>
>>     Either use 2d images: and then the simpliest way it 
>> vtkImageViewer(2):
>>
>> http://www.vtk.org/doc/nightly/html/classvtkImageViewer.html
>> http://www.vtk.org/doc/nightly/html/classvtkImageViewer2.html
>>
>>     Or you want to render the whole volume, using for example 
>> vtkVolumeRayCastMapper :
>>
>> http://www.vtk.org/doc/nightly/html/classvtkVolumeRayCastMapper.html
>>
>>
>> If you have the book it should be pretty simple. And you can still 
>> access the online doc at:
>>
>> http://www.vtk.org/doc/nightly/html/classes.html
>>
>> Or you can go:
>>
>> http://www.vtk.org/doc/nightly/html/classvtkVolume16Reader.html
>>
>> And study tests/ and examples (scroll down a little bit the page)
>>
>> Mathieu
>>
>> Wagner Sales wrote:
>>
>>>
>>> Hi all,
>>>
>>> Probably, my question are too simple to this list, but I'm really new in
>>> VTK.  I was acquired the books and I was searched by help before post
>>> that ( are the home lessons ;)  ).
>>> My problem is too simple. I need to create a vtkVolume and display it,
>>> but in examples, I have that only using the vtkVolumeReader.
>>> I don't need that, since I'm using the ITK to read and perform some 
>>> operations in segmentation on imagens. Because that, I have the three 
>>> most important series ( sagittal, coronal and transversal ) in 
>>> objects that's I can convert to VTK. Then, how to put the images in 
>>> volume, for
>>> example, by pass the data ( slice by slice, in vtkImage, for example )
>>> and the three cordinates that's will located in final volume?
>>>
>>> thks
>>>
>>> Wagner
>>>
>>> Sorry by post this here by second time... That's will the last.
>>> If someone have any document, faq, etc, please!
>>> I was searched at google, at faq, at users list, etc.
>>> May be I'm completely wrong in my approach, but unfortunatelly, I 
>>> don't have a lot of time. Since I have the correct approach to solve 
>>> the problem, I need just the start point, e.g: You approach are not 
>>> correct, read these doc, or then: use these objects.
>>>
>>> thks
>>>
>>>
>>> _______________________________________________
>>> This is the private VTK discussion list. Please keep messages 
>>> on-topic. Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
>>> Follow this link to subscribe/unsubscribe:
>>> http://www.vtk.org/mailman/listinfo/vtkusers
>>>
>>
>>
>>
> 
> 
>