[vtkusers] dicom series image orientation problem! request David for help!

[scofield zhu]

hi david,
     I use vtkGDCMImageReader(gdcm2.8.5) to read dicom serires image, and
SetFileLowerLeftOn() called too. after success reading, the process image
codes as following:
_____________________________________________________________________________
       Point3 data_origin = imgdata->GetOrigin();
    Point3 dataorigin = info->origin;
    Point3 patient_position = info->patient_position;

    //here: i am sure:data_origin is equal with both dataorigin and
patient_position

    Vec3 row_orient = info->patient_row_orientation;
    Vec3 col_orient = info->patient_col_orientation;
    Vec3 slice_orient = info->patient_orientation;

    vtkMatrix4x4* matrix = vtkMatrix4x4::New();
    matrix->Identity();
    matrix->SetElement(0, 0, row_orient[0]);
    matrix->SetElement(0, 1, row_orient[1]);
    matrix->SetElement(0, 2, row_orient[2]);
    matrix->SetElement(1, 0, col_orient[0]);
    matrix->SetElement(1, 1, col_orient[1]);
    matrix->SetElement(1, 2, col_orient[2]);
    matrix->SetElement(2, 0, slice_orient[0]);
    matrix->SetElement(2, 1, slice_orient[1]);
    matrix->SetElement(2, 2, slice_orient[2]);

    vtkMatrix4x4* inverse_matrix = vtkMatrix4x4::New();
    matrix->Invert(matrix, inverse_matrix);
    double new_origin[4] = {0.0};
    new_origin[3] = 1.0;
    inverse_matrix->MultiplyPoint(data_origin, new_origin);
    inverse_matrix->Delete();

    vtkImageChangeInformation* imgchangeinfo =
vtkImageChangeInformation::New();
    imgchangeinfo->SetOutputOrigin(new_origin[0], new_origin[1],
new_origin[2]);
    imgchangeinfo->SetInputData(imgdata);
    imgchangeinfo->Update();
    imgdata->DeepCopy(reslice->GetOutput());
    imgchangeinfo->Delete();

    vtkTransformFilter* transform_filter = vtkTransformFilter::New();
    vtkTransform* patient_transform = vtkTransform::New();
    patient_transform->SetMatrix(matrix);
    transform_filter->SetTransform(patient_transform);
    transform_filter->SetInputData(imgdata);
    transform_filter->Update();
    imgdata->DeepCopy(transform_filter->GetOutputDataObject(0));
    transform_filter->Delete();
    patient_transform->Delete();
    matrix->Delete();

__________________________________________________________________________

    it works ok in some dicom series image, but not working for some series
image especially single dcm file with multi-frame.

    what's wrong in my code? please help me ! thanks a lot!
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