convert a track file to a vtk format, cave: coordinates are in XYZ coordinates not reference
| -voxel image | if specified, the properties of this image will be used to convert track point positions from real (scanner) coordinates into voxel coordinates. 
| image | the reference image. |  | 
| -image image | if specified, the properties of this image will be used to convert track point positions from real (scanner) coordinates into image coordinates (in mm). 
| image | the reference image. |  | 
| -info | display information messages. | 
| -quiet | do not display information messages or progress status. | 
| -debug | display debugging messages. | 
| -help | display this information page and exit. | 
| -version | display version information and exit. |