How to update actor positon following the reslice matrix change of vtkImageReslice?

Hi Experts:

I use vtkImageReslice and vtkImageActor to show the slice of any DICOM data. Also I add a customizied curve into the same vtkRenderWindow. See picture below. When the reslice matrix is changed following the mouse moving, the image slice is changed. But the curve position doesn’t change. Can some one shed some lights on this? I think the curve position can be updated using the reslice matrix. But how to set up the updating pipeline? Thanks a lot.