subroutine kutl_convert_w_to_c(w, refPoint, c)
*
* begin_doc
*
*  Converts a  W track to C format relative to a reference point. A
*  solenoidal field is assumed.
*
*  Input Parameters:
*  w(10)          double precision array
*                 Input track parameters
*
*  refPoint(3)    double precision array
*                 Reference point for output track parameters
*
*  Output Parameters:
*  c(13)          double precision array
*                 Output track parameters
*                 (cu, phi0, d0, ct, z0, cos(phi0), sin(phi0), pt,  p, Q,
*                  rex_x, ref_y, ref_z)
*
*  Other routines:
*
*  Notes:
*
*  Author:   Paul Avery      Created:  Tue Sep 23 20:59:05 EDT 1997
*
*  Major revisions:
*
*
* end_doc