SUBROUTINE  : FTMERG
 
AUTHOR : I.O.Skillicorn
 
DATE : 26/07/93
 
LANGUAGE : FORTRAN
 
SHORT SUMMARY of PURPOSE:                                                
                                                                                
          Select best planar-based, radial-based tracks                         
                                                                                
LIST and DESCRIPTION of INPUT VARIABLES/ARGUMENTS:                       
                                                                                
 Radial-based tracks:                                                           
          IG tracks                                                             
          Hits/drift sign         :- IRN/SDN IRP/SDP                            
          Segments planars/radials:- ISGG LNK3                                  
 Planar-based tracks:                                                           
          NPP tracks                                                            
          Hits                    :- IRR/SRR IPP/SPP                            
          Segments radials/planars:- LRR LPP                                    
                                                                                
                                                                                
LIST and DESCRIPTION of OUTPUT VARIABLES/ARGUMENTS:                      
                                                                                
          Good radial-based track :- IBRR=1                                     
          Used radial segment     :- IUSR                                       
          Used planar segment     :- IUSP                                       
                                                                                
 
CALLING TREE from FTMERG :
 
None
 
FUNCTIONS USED :
 
None
 
KEEP SEQUENCES USED :
 
 FRDIMS FH1WORK FPTVTX FRH3FT FPPRAM FPLSEG FPTFLG FPTPAR FDIFLG                                              
                                                                                                              
 

 
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