function sys = mtt2sys (Name)
## usage: sys = mtt2sys (Name)
##
## Creates a sys structure for the Octave Control Systems Toolbox
## from an MTT system with name "Name"
## Assumes that Name_sm.m and Name_struc.m exist
## Copyright (C) 2000 by Peter J Gawthrop
if nargin<1
error("missing system name, usage: sys = mtt2sys (Name)");
endif
## Function names
numpar_name = sprintf("%s_numpar",Name);
sm_name = sprintf("%s_sm",Name);
struc_name = sprintf("%s_struc",Name);
## Check files exist
if exist(numpar_name)!=2
error("File %s.m does not exist: use <mtt %s numpar m> to create it",\
numpar_name,Name);
endif
if exist(sm_name)!=2
error("File %s.m does not exist: use <mtt %s sm m> to create it",\
sm_name,Name);
endif
if exist(struc_name)!=2
error("File %s.m does not exist: use <mtt %s struc m> to create it",\
struc_name,Name);
endif
eval(sprintf("par=%s_numpar;", Name)); # Parameters
eval(sprintf("[A,B,C,D]=%s_sm(par);", Name)); # State matrices
sys = ss2sys(A,B,C,D); # Sys form
eval(sprintf("[sys.inname,sys.outname,sys.stname]=%s_struc;", Name)); # Setup names
endfunction