[vtkusers] How to Get rendered Volume Slices?

[朱映华]

no , i just want to  generated  2D images of each 6° degree around the MIP
volume.
Could you tell me how can i do that?
I am stuck in this problem a long time...>.<

best regards.
Yinghua.
2010/9/19 Karthik Krishnan <karthik.krishnan at kitware.com>

> I believe he's looking for thick slab using MIP.
>
> On Sun, Sep 19, 2010 at 3:46 PM, Italo Ribeiro <italo.ribeiro at gmail.com>wrote:
>
>> If i understand you want create 3D model of slice? Try this:
>>
>> vtkDICOMImageReader *reader = vtkDICOMImageReader::New();
>>     reader->SetDirectoryName("C:/cranio");
>>     reader->Update();
>>
>>  vtkContourFilter *skinExtractor = vtkContourFilter::New();
>>   skinExtractor->SetInputConnection(reader->GetOutputPort());
>>   skinExtractor->SetValue(0, 500); //skin human
>>
>>   vtkPolyDataNormals *skinNormals = vtkPolyDataNormals::New();
>>   skinNormals->SetInputConnection(skinExtractor->GetOutputPort());
>>   skinNormals->SetFeatureAngle(60.0);
>>
>>   vtkStripper *skinStripper = vtkStripper::New();
>>   skinStripper->SetInputConnection(skinNormals->GetOutputPort());
>>
>>   vtkPolyDataMapper *skinMapper = vtkPolyDataMapper::New();
>>   skinMapper->SetInputConnection(skinStripper->GetOutputPort());
>>   skinMapper->ScalarVisibilityOff();
>>
>>   vtkActor *skin = vtkActor::New();
>>   skin->SetMapper(skinMapper);
>>
>> vtkRenderer *renderer2 = vtkRenderer::New();
>>     renderer2->SetViewport(0.5, 0.0, 1.0, 0.5);
>>     renderer2->SetBackground(0.0, 0.0, 0.0);
>>     renderWindow->AddRenderer(renderer2);
>>
>>   renderer2->AddActor(skin);
>>
>> bye.
>>
>> 2010/9/19 陆阳 <thuluyang at gmail.com>
>>
>>  i have the exatly desire as finsher has...
>>> i am waiting for the answeer to...
>>> best regards
>>>
>>> 2010/9/19 finsher <zhuyinghua01 at gmail.com>
>>>
>>>
>>>> Hi all,
>>>> I need to get the Maximum intensity projection(MIP) slices.
>>>> so I have a series of MR images.  I use these series to do MIP(or volume
>>>> render etc...).  when MIP rendering completed  I need to get the
>>>> rendered
>>>> slices. if i use vtkResliceImage dor  imageplanewidget s the input data
>>>> is
>>>> the voxel raw data, i got the  slices is the original image slices, not
>>>> cut
>>>> from MIP volume slices.
>>>> so could you help me how to get the correct slices?
>>>>
>>>> best regards.
>>>>
>>>> and below is my code :
>>>>
>>>> //step 1: read raw image series data
>>>> vtkVolume16Reader* v16 =  vtkVolume16Reader::New();
>>>> v16->SetFilePrefix("d:\\aaa\\new\\a");
>>>> ...
>>>> v16->Update();
>>>>
>>>> //step.2: do MIP
>>>> vtkPiecewiseFunction *opacityTransferFunc = vtkPiecewiseFunction::New();
>>>> opacityTransferFunc->AddPoint(0.0, 0.0);
>>>> ...
>>>> vtkColorTransferFunction *colorTransferFunc =
>>>> vtkColorTransferFunction::New();
>>>> colorTransferFunc->AddRGBPoint(0.0, 0.0, 0.0, 0.0);
>>>> ...
>>>> volumeProperty = vtkVolumeProperty::New();
>>>> volumeProperty->SetColor(colorTransferFunc);
>>>> volumeProperty->SetScalarOpacity(opacityTransferFunc);
>>>>
>>>> //step 3: set mip function and create volume data
>>>> vtkVolumeRayCastMIPFunction *mipFunc =
>>>> vtkVolumeRayCastMIPFunction::New();
>>>> volumeMapper = vtkVolumeRayCastMapper::New();
>>>> volumeMapper->SetVolumeRayCastFunction(mipFunc);
>>>> volumeMapper->SetInput(v16->GetOutput());
>>>> volume = vtkVolume::New();
>>>> volume->SetMapper(volumeMapper);
>>>> volume->SetProperty(volumeProperty);
>>>> volume->Update();
>>>>
>>>> //step.4: renderer volume show rendered window
>>>> render->AddVolume(volume);
>>>> renderWindow->Render();
>>>> ...
>>>>
>>>> //setp.5: get MIP slices
>>>> vtkImagePlaneWidget* planeWidget = vtkImagePlaneWidget::New();
>>>> ...
>>>> planeWidget->SetInput(v16->GetOutput()); <----i think this input data
>>>> could
>>>> not be correct. but i don't know how ...
>>>>
>>>> //step.6 display the slices
>>>> imageViewer2->SetInput(planeWidget->GetResliceOutput());
>>>> renderWindowInteractor->Initialize();
>>>> imageViewer2->Render();
>>>> renderWindowInteractor->Start();
>>>> ....
>>>> --
>>>> View this message in context:
>>>> http://vtk.1045678.n5.nabble.com/How-to-Get-rendered-Volume-Slices-tp2845243p2845243.html
>>>> Sent from the VTK - Users mailing list archive at Nabble.com.
>>>> _______________________________________________
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>>>>
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>>>
>>>
>>>
>>> --
>>> 陆阳
>>> 清华大学医学院生物医学工程系
>>> Yang Lu
>>> Department of Biomedical Engineering,
>>> School of Medicine, Tsinghua University
>>>
>>>
>>> _______________________________________________
>>> Powered by www.kitware.com
>>>
>>> Visit other Kitware open-source projects at
>>> http://www.kitware.com/opensource/opensource.html
>>>
>>> Please keep messages on-topic and check the VTK FAQ at:
>>> http://www.vtk.org/Wiki/VTK_FAQ
>>>
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>>>
>>
>>
>> --
>> Ítalo Mendes
>> ogre.irados.org
>>
>> _______________________________________________
>> Powered by www.kitware.com
>>
>> Visit other Kitware open-source projects at
>> http://www.kitware.com/opensource/opensource.html
>>
>> Please keep messages on-topic and check the VTK FAQ at:
>> http://www.vtk.org/Wiki/VTK_FAQ
>>
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>>
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Follow this link to subscribe/unsubscribe:
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