Online Help:

begin load loop derose tables 2 3 4 5 6 
end   load loop derose tables
Usage: /vol/vssp/local/trees/amma-4/linux/bin/rrtool [options] 
   -optload () [] Load options from a file.  
   -optsave () [] Save options to a file.  
   -i () [] input filename root .tri/.vec
   -o () [] output filename .tri
   -pr (40) [40] Pre-decimate in % (0-100) 
   -po (10) [10] Post-decimate per interation in % (0-100) 
   -er (10) [10] Rise in error allowed in post-decimate in % (0-100) 
   -f (FALSE) [FALSE] work on 4-sided patches
   -fi (0) [0] fill up any holes with less than x sides 
   -n (50) [50] number of bins 
   -e (FALSE) [FALSE] use exhaustive search
   -fn (5) [5] number of fixed topology loops 
   -tr (FALSE) [FALSE] trace printout
   -st (TRUE) [TRUE] print out statistics
   -b (20) [20] No. of bins used to produce histogram 
   -lp (FALSE) [FALSE] list points that have been rejected
   -fixkb (0.1) [0.1] Constant - boundary 
   -fixks (0.6) [0.6] Constant - spring 
   -fixkr (0) [0] Constant - representation 
   -optkb (0.1) [0.1] Constant - boundary 
   -optks (0.2) [0.2] Constant - spring 
   -optkr (0.05) [0.05] Constant - representation 
   -help (TRUE) [FALSE] Print usage information. 

Dependancies:
   -i is compulsory.
   -o is compulsory.