  COMMAND PWAVE2DFRAME
-----------------------------------------------------------------
    Purpose: transversal/longitudinal particle-wave along x- and y-axis, single objec
      Usage: PWAVE2DFRAME(<particleID>,<frames>,<frame>,<destID>,<"T" or "L">,
                          [<amplitude>,<wavelength>,<sourceX>,<sourceY>,
                           <damping>,<phase in degrees>])
   Examples: pwave2dframe(1,40,23,4,l,12.0,24,10,-10,1.6,60.0)
             pwave2dframe(1,60,30,2,l)
             pwave2dframe(1,60,24,3,t)
