[vtkusers] structured point to render few 2D

[Audi]

Hi,
I used vtkStructuredPoints to render few 2D data to form 3D
instead of using volume rendering.
But I have problem to render it.
This is the function for rendering few 2D files into 3D, 
can anybody find what is the problem with my function?I'm stuck.
I hope somebody can help me to find it.

1. m_XDim,m_YDim are file dimensions
2. m_ZDim is the number of 2D files that has been read
3. Number is the counter to count how many files that has been read
4. m_XScale,m_YScale,m_ZScale are the file spacing

My program is reading the 2D file one by one, every time reading one file it will
store it into vtkStructuredPoints. I also check with the vtkVolumeReader, it seems
correct, but my prog only can view 2D instead of 3D. It seems the storing part
not succesful, but I can't find why, so anybody can find it?

Thanks a lot,
Audi

BOOL CPointsVisualizationView::LoadRawDataMul(vtkStructuredPoints **StructuredPoints) 
{ 
 GetDocument()->Cleanup();

 CWaitCursor *cursor;
 CString FileName;
 unsigned char *Image;
 unsigned short *Image2;
 int Number=1;
 bool ImageFlag=false;
 bool ImageFlag2=false;
 
 cursor=new CWaitCursor; 
 CFileDialog filedialog(TRUE,"*.raw",NULL,NULL,"Raw Data File(*.raw) |*.raw||",NULL);
 
 if(filedialog.DoModal()==IDCANCEL)
 return FALSE;
 
 delete cursor;
 cursor=NULL;
 cursor=new CWaitCursor;
 
 FILE *fin;
 
 fin=fopen(filedialog.GetFileName(),"rb");
 
 if(fin==NULL)
 {
 AfxMessageBox("I was not able to open the file...");
 return FALSE;
 }

 FileName=filedialog.GetFileName();
 CInfoDialog datainfo;
 if(datainfo.DoModal()==IDCANCEL)
  return FALSE;

 if((*StructuredPoints)!=NULL)
 {
 (*StructuredPoints)->Delete();
 (*StructuredPoints)=NULL;
 }
 
 (*StructuredPoints)=vtkStructuredPoints::New();
 
 if(datainfo.m_ByteCount==1)
  {
   (*StructuredPoints)->SetScalarType(VTK_UNSIGNED_CHAR);
   Image=new unsigned char[datainfo.m_XDim*datainfo.m_YDim*datainfo.m_ZDim];
   ImageFlag=true;
  }
  else
  {
   (*StructuredPoints)->SetScalarType(VTK_UNSIGNED_SHORT);
   Image2=new unsigned short[datainfo.m_XDim*datainfo.m_YDim*datainfo.m_ZDim];
   ImageFlag2=true;
  }
  
 (*StructuredPoints)->SetDimensions(datainfo.m_XDim,datainfo.m_YDim,datainfo.m_ZDim);
 (*StructuredPoints)->SetSpacing(datainfo.m_XScale,datainfo.m_YScale,datainfo.m_ZScale);

 (*StructuredPoints)->AllocateScalars();

 while (Number!=datainfo.m_ZDim)
 {
  if(datainfo.m_ByteCount==1)
  { 
   fread(Image,1,datainfo.m_XDim*datainfo.m_YDim,fin);
   fclose(fin);
   
   vtkScalars *scalars=(*StructuredPoints)->GetPointData()->GetScalars();
   scalars->SetDataType(VTK_UNSIGNED_CHAR);
   scalars->Allocate(datainfo.m_XDim*datainfo.m_YDim*datainfo.m_ZDim);

   int i,j,k;

   for(k=Number-1;k<Number;k++)
    for(j=0;j<datainfo.m_YDim;j++)
     for(i=0;i<datainfo.m_XDim;i++)
     {
      scalars->InsertScalar(k*(datainfo.m_YDim*datainfo.m_XDim)+j*(datainfo.m_XDim)+i,Image[k*(datainfo.m_YDim*datainfo.m_XDim)+j*(datainfo.m_XDim)+i]);
     }
 }
  else
  {  
   fread(Image2,2,datainfo.m_XDim*datainfo.m_YDim,fin);
   fclose(fin);

   vtkScalars *scalars=(*StructuredPoints)->GetPointData()->GetScalars();
   scalars->SetDataType(VTK_UNSIGNED_SHORT);
   scalars->Allocate(datainfo.m_XDim*datainfo.m_YDim*datainfo.m_ZDim);
   
   int i,j,k;

   for(k=Number-1;k<Number;k++)
    for(j=0;j<datainfo.m_YDim;j++)
     for(i=0;i<datainfo.m_XDim;i++)
     {
      scalars->SetScalar(k*(datainfo.m_YDim*datainfo.m_XDim)+j*(datainfo.m_XDim)+i,Image2[k*(datainfo.m_YDim*datainfo.m_XDim)+j*(datainfo.m_XDim)+i]);
     }
  }
 
  if(filedialog.DoModal()==IDCANCEL)
   return FALSE;

  fin=fopen(filedialog.GetFileName(),"rb");
 
  if(fin==NULL)
  {
   AfxMessageBox("I was not able to open the file...");
   return FALSE;
  }
 
  Number=Number+1;
 }

 (*StructuredPoints)->Modified();

 delete cursor;
 cursor=NULL;
 cursor=new CWaitCursor;

 
 if (ImageFlag==true)
  delete [] Image;
 if (ImageFlag2==true)
  delete [] Image2;
 
 cursor->Restore();
 delete cursor;
 
 return TRUE;
}


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