使用vtk来显示体绘制结果，并用界面的形式显示肿瘤重建的三个方向的每一个切片信息，可以自己拖动进行比较灵活的显示，输入是一系列的切片-Using VTK to display the volume rendering results, and use the interface display in the form of tumor reconstruction in a three direction of each section information, can drag were co