% Acausal bond graph to causal bond graph: mfile format

% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %% Version control history
% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %% $Id$
% %% $Log$
% %% Revision 1.6  1996/08/09 08:27:29  peter
% %% Added a few deguging lines
% %%
% %% Revision 1.5  1996/08/08 18:06:18  peter
% %% Unified file naming scheme
% %%
% %% Revision 1.4  1996/08/08 08:30:06  peter
% %% The cbg filename contains the system name - this makes things easier
% %% when setting up the m to fig translation and m to ese translation
% %%

  mtt_info(sprintf('%1.0f port bonds incompatible with %1.0f ports', ...
      n_port_bonds, n_ports), infofile);
else % Copy the port bonds
  for i = 1:n_ports
    bonds(i,:) = port_bonds(i,:);
  end;
end;


% Set initial status
status = -ones(n_components,1);
total = 2*n_bonds;

done = sum(sum(abs(bonds)))/total*100;

% Outer while loop sets preferred causality
ci_index=1;
while ci_index>0
  old_done = inf;
  % Inner loop propogates causality
  while done~=old_done
    disp(sprintf('Causality is %3.0f%s complete.', done, pc));
    old_done = done;
  
    for i = 1:n_components
      comp = nozeros(components(i,:));
      bond_list = abs(comp);
      direction = sign(comp)'*[1 1];
      % Convert from arrow orientated to component orientated causality
      comp_bonds = bonds(bond_list,:).*direction;
      eval([ '[comp_type,name,cr,arg] = ', system_type, '_cmp(i);' ]);
      % change name of 0 and 1 components -- matlab doesn't like numbers here
      if strcmp(comp_type,'0')
	comp_type = 'zero';
      end;
      if strcmp(comp_type,'1')
	comp_type = 'one';
      end;
      
      % Component causality procedure name
      cause_name = [comp_type, '_cause'];
      
      % Invoke  the appropriate causality procedure
      if exist(cause_name)~=2 % Try a compound component
	% disp('------------PUSH-----------------');
	[comp_bonds,s] = abg2cbg(name, comp_type, full_name, comp_bonds, ...
	    infofile);
	status(i)=max(abs(s));
	% disp('------------POP-----------------');
      else % its a simple component
	% disp(['---', name, ' (', cause_name, ') ---']);
	% comp_bonds
	eval([ '[comp_bonds,status(i)] = ', cause_name, '(comp_bonds);' ]);
	% comp_bonds
      end;
      
      % Update the full bonds list
      % and convert from component orientated to arrow orientated causality
      bonds(bond_list,:) = comp_bonds.*direction; 
    end;
    
    
    done = sum(sum(abs(bonds)))/total*100;
    %  mtt_info(sprintf('Causality is %3.0f%s complete.', done, pc), infofile);
    
  end;
  
  % Set causality of C and I which is not set
  [ci_index,prefered] = getdynamic(status,system_type);
  if ci_index>0
    bond_index = components(ci_index,1) % its a one port
    bonds(bond_index,1) = prefered;
    bonds(bond_index,2) = prefered;
  end;
  

end;

% Print final causality
final_done =  (sum(status==zeros(n_components,1))/n_components)*100;;
mtt_info(sprintf('Final causality is %3.0f%s complete.', final_done, pc),
infofile);

% List overcausal bonds
[over_causal_bonds,n] = getindex(status,1);
if n>0
  for i=over_causal_bonds'

% Return the port bonds
for i = 1:n_ports
  port_bonds(i,:) = bonds(i,:);
end;

disp('----------------------');