SamplingSchemeDistance  [--returnparameterfile <std::string>]
                           [--processinformationaddress <std::string>]
                           [--xml] [--echo] [--debug] [--] [--version] [-h]
                           <std::string> <std::string>


   --returnparameterfile <std::string>
     Filename in which to write simple return parameters (int, float,
     int-vector, etc.) as opposed to bulk return parameters (image,
     geometry, transform, measurement, table).

   --processinformationaddress <std::string>
     Address of a structure to store process information (progress, abort,
     etc.). (value: 0)

     Produce xml description of command line arguments (value: 0)

     Echo the command line arguments (value: 0)

     debug (value: 0)

   --,  --ignore_rest
     Ignores the rest of the labeled arguments following this flag.

     Displays version information and exits.

   -h,  --help
     Displays usage information and exits.

     (required)  Input gradient File 1.

     (required)  Input gradient File 2.

   Description: Calculate the distance (maximum of the minimal angles)
   between two single shell sampling schemes.


   SamplingSchemeDistance grad1.txt grad2.txt

   Author(s): Jian Cheng (

   Acknowledgements: Thank you everyone.