[vtk-developers] help

[David Doria]

2010/9/9 陆阳 <thuluyang at gmail.com>:
> hello,sorry to interupt you .
> but i have a really important question.i am asking you for help.
> i am a new learner of vtk.
> recently,i am using vtk to do 3d reconstruction.
> i am using mip(maximum intenstity projection ) to do this.
> first reading some silces of ct dicom image,then do the projection.
> as you know vtk is using pipeline ,we can only get 3d volume.
> but what i want is the 2d image by MIP.
> i dont know if i make myself understood by you? my english is poor.
> here is the main code:
> //read the dicoms
> vtkDICOMImageReader *volumeReader = vtkDICOMImageReader::New();
> volumeReader->SetDirectoryName("C:/mrdata");
> vtkImageShiftScale *scale=vtkImageShiftScale::New();
> scale->SetInput(volumeReader->GetOutput());
> scale->SetOutputScalarTypeToUnsignedChar();
> scale->Update();
> vtkVolumeRayCastMIPFunction *MIP = vtkVolumeRayCastMIPFunction::New();
> vtkVolumeRayCastMapper *RaycastMapper = vtkVolumeRayCastMapper::New();
> RaycastMapper->SetVolumeRayCastFunction(MIP);
>     RaycastMapper->SetInput(scale->GetOutput());
> here is the case, where i can get the 2d image i want?
> i couldnot find any interface.but i think the image should be the output of
>  RaycastMapper?
> the pity is i cant find any output of RaycastMapper.
> could you give me some suggestions?
> --
> 陆阳
> 清华大学医学院生物医学工程系
> Yang Lu


Hi Yang,

Unfortunately I don't have an answer for you, but I'd suggest you post
this question to the VTK users list:
http://www.vtk.org/mailman/listinfo/vtkusers

The developers list is for questions about writing new code for VTK
while the users list is about using existing code in VTK.

Good luck!

David