| 
	    plot3d
	  ( | x, | 
| y, | |
| z, | |
| nx, | |
| ny, | |
| opt, | |
| side, | |
| mx ); | 
      When called from Fortran, this routine has the same effect as when
      invoked from C.  The interpretation of all parameters (see plot3d)
      is also the same except there is an additional parameter given by:
    
mx
	  (PLINTLength of array in x direction, for plotting subarrays.