[vtkusers] Problem with Image Data Convert

[icanfly]

Hi,all VTKUsers

I'm a newcomer of VTK.Now,I have a problem of changing my data to vtkImage Data.

I have read slices from CT DICOM files and reconstructed the data into volume data, the data is stored in a three-dimension array(*pVoxels). I want to render by using vtkContourFilter to generate polygon data. So I have to convert  my data into vtkImageData.I'v written some code ,but I don't know wheather it is right. I want to know where should I put my data in the vtkImageData and how can I make my data communicate with vtk data seamlessly,or is there other way to directly manipulate my data in VTK?


Thanks a lot

Xu
List,SEU
-------------------
P.S.
Here are part of my code:

CMyApp* pWinApp=(CMyApp*)AfxGetApp();

vtkImageData *m_pImageData=vtkImageData::new();
CVolume* m_pBone;        //CVolume is my defined volume class
m_pBone=pWinApp->mpBone;// Get the bone volume data from the mpBone in CMyApp

int Wid=m_pBone->mWidth;
int Hei=m_pBone->mHeight;
int Thi=m_pBone->mThickness;
int VoxelSize=m_pBone->mVoxelSize;

m_pImageData->SetDimensions(Wid,Hei,Thi);
m_pImageData->SetSpacing(1,1,1);
m_pImageData->SetOrigin(0,0,0);

m_pImageData->SetScalarTypeToUnsignedShort ();
m_pImageData->SetNumberOfScalarComponents(1);
m_pImageData->AllocateScalars();
unsigned short *ptr=(unsigned short*) m_pImageData->GetScalarPointer();
unsigned short *pVoxels=(unsigned short*)m_pBone->mpVoxels;
//the three-dimention array of voxels is referenced by the              pointer *mpVoxels.   
for(int i=0;i<Wid*Hei*Thi;i++)
{
  *ptr++=*pVoxels++; 
}
m_pImageData->SetSpacing(1,1,1);
m_pImageData->SetOrigin(0,0,0);


                                                      

 
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