File mttroot/mtt/lib/comp/simple/TF_eqn.m artifact 779108ce5c part of check-in a494ed7ce7

function  structure = TF_eqn(bond_number,bonds,direction,cr,args, ...
                            structure,eqnfile);

% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %% Version control history
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% %% $Id$
% %% $Log$
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if nargin<6
  eqnfile = 'stdout';
end;

% Needs port labels etc...

% Effort
if bonds(1,1)==1
  oneeqn(bond_number(2),1,bond_number(1),1,cr,args,eqnfile);
else
  oneeqn(bond_number(1),1,bond_number(2),1,cr,args,eqnfile);
end;

% Flow
if bonds(1,2)==-1
  oneeqn(bond_number(2),-1,bond_number(1),-1,cr,args,eqnfile);
else
  oneeqn(bond_number(1),-1,bond_number(2),-1,cr,args,eqnfile);
end;