function structure = cbg2ese(system_name, system_type, system_cr, ... system_args, full_name, full_name_repetition, ... repetition,... structure, structure_file,infofilenum) # Set up globals to count the component inputs and outputs. This relies on # the named SS (the ports) being in the correct order. Using globals here # avoids changing the common argument list for all _eqn files for something # which is only used for named SS components. global local_u_index global local_y_index global at_top_level # # ###################################### # ##### Model Transformation Tools ##### # ###################################### # # Matlab function cbg2ese.m # Acausal bond graph to causal bond graph: mfile format # Structure matrix [states,nonstates,inputs,outputs,zero_outputs] # ############################################################### # ## Version control history # ############################################################### # ## $Id$ # ## $Log$ # ## Revision 1.29 1998/08/25 09:22:34 peterg # ## Correctely recognises port SSs its now easy -- they are in there own # ## field # ## # ## Revision 1.28 1998/08/25 08:31:42 peterg # ## Fixed bug - didn't find the ports - use deblank # ## # ## Revision 1.27 1998/08/25 07:16:49 peterg # ## Modified to data struture representation # ## # ## Revision 1.26 1998/08/24 14:53:55 peterg # ## Uses new _cbg structure. # ## # ## Revision 1.25 1998/07/28 19:05:12 peterg # ## Sttill has vector SS port bug? # ## # ## Revision 1.24 1998/07/27 10:26:02 peterg # ## No change - but fixed bug in alias_args # ## # ## Revision 1.23 1998/07/08 12:33:51 peterg # ## Reinstated the infofilenum parameter. # ## # ## Revision 1.22 1998/07/04 07:10:27 peterg # ## Don't evaluate alias if no constitutive relationship or args and write # ## message. # ## # ## Revision 1.21 1998/07/03 18:58:58 peterg # ## Put arg alias stuff within function alias_args # ## Called recursively to handle arithmetic expressions # ## # ## Revision 1.20 1998/07/03 14:39:09 peterg # ## Added info messages a bit busy now! # ## # ## Revision 1.19 1998/04/12 11:58:19 peterg # ## Rename port components by changing name_r to [name_r # ## # ## Revision 1.18 1998/04/11 18:59:16 peterg # ## at_top_level now global - passed to SS components # ## # ## Revision 1.17 1998/04/04 10:47:31 peterg # ## Uses (coerced) components from _cbg file - _abg not now used here. # ## # ## Revision 1.16 1998/03/06 09:38:58 peterg # ## Now writes correct structure file for multiport C & I # ## # ## Revision 1.15 1997/12/16 18:24:33 peterg # ## Added unknown_input to structure list # ## # ## Revision 1.14 1997/08/26 07:51:10 peterg # ## Now counts the local input and outputs by order of appearence rather # ## than by port number - it therfore handles ports with bicausality correctely. # ## # ## Revision 1.13 1997/05/19 16:45:56 peterg # ## Fixed ISW bug -- deleted spurious ISW_eqn.m file # ## # ## Revision 1.12 1997/04/15 09:17:26 peterg # ## Added the structure file - contains details of states etc. # ## # ## Revision 1.11 1996/12/07 18:20:11 peterg # ## Replaces null argument by a default and tells user. # ## # ## Revision 1.10 1996/12/07 17:37:07 peterg # ## Now handles numbered SS ports appearing at top level. # ## # ## Revision 1.9 1996/12/04 21:49:47 peterg # ## Compares full-name with empty string (instead of testing for zero # ## length) # ## # ## Revision 1.8 1996/08/30 16:36:08 peter # ## More info written to ese files. # ## # ## Revision 1.7 1996/08/30 11:23:13 peter # ## Argument substitution implemented. # ## # ## Revision 1.6 1996/08/27 08:04:52 peterg # ## Handles complex components and repetative components. # ## # ## Revision 1.5 1996/08/24 15:02:23 peter # ## Writes `END;' to keep reduce happy. # ## # ## Revision 1.4 1996/08/19 09:03:41 peter # ## Handles repeating components. # ## # ## Revision 1.3 1996/08/18 20:08:02 peter # ## Included additional structure: structure(5) = zero_outputs. # ## # ## Revision 1.2 1996/08/08 18:08:11 peter # ## Sorted out file naming sceme # ## # ## Revision 1.1 1996/08/08 15:53:23 peter # ## Initial revision # ## # ############################################################# system_name, system_type, full_name, pc = "%"; # Set up the names corresponding to the structure matrix. structure_name = [ "state ", "nonstate ", "input ", "output ", "zero_output ", "unknown_input"]; # Are we at the top level of the heirarchy? at_top_level = strcmp(full_name, ""); # Create the (full) system name if at_top_level full_name = system_name; full_name_repetition = system_name; system_type = system_name; else full_name = [full_name, "_", system_name]; full_name_repetition = [full_name_repetition, ... "_", system_name, "_", num2str(repetition)]; end; cbg_name = [full_name, "_cbg"]; if exist(cbg_name)~=2 # Return if cbg file doesn't exist disp([cbg_name, " does not exist"]); return end; # Setup files ese_name = [full_name_repetition, "_ese.r"]; ese_file = fopen(ese_name, "w"); fprintf(ese_file, "\n%s%s Equation file for system %s (file %s)\n", ... pc, pc, full_name_repetition, ese_name); fprintf(ese_file, "%s%s Generated by MTT\n\n", pc, pc); # Evaluate the system function to get the bonds eval(["CBG = ", cbg_name, ";"]); #eval(["[bonds,status,system_type,components] = ", cbg_name, ";"]); # abg_name = [system_type, "_abg"]; # cmp_name = [system_type, "_cmp"]; # alias_name = [system_type, "_alias"]; # No longer needed - cbg now has components: # eval(["[junk,components]=", abg_name, ";"]); # Find number of bonds [n_bonds,columns] = size(CBG.bonds); if (columns ~= 2)&(n_bonds>0) error("Incorrect bonds matrix: must have 2 columns"); endif; # # Find number of components # [n_components,columns] = size(components); # n_components = n_components # Set up the first dummy bond number - needed for repetative components # next_bond = max(max(abs(components)))+1; # Set up the counters for the labelled SS. These are, by definition, # encountered first and so the counters will not be messed up by subsystems. local_u_index = 0; local_y_index = 0; if (length(system_args)==0) mtt_info(sprintf("No arguments given so no argument aliasing done for system %s(%s)",\ system_name,system_type), infofilenum); endif; if (length(system_cr)==0) mtt_info(sprintf("No cr given so no cr aliasing done for system %s(%s)",\ system_name,system_type), infofilenum); endif; fields=["ports";"subsystems"]; # Do for both ports and subsystems - # ports first lists=["portlist";"subsystemlist"]; for i=1:2 field=deblank(fields(i,:)); list=deblank(lists(i,:)); if struct_contains(CBG,list); eval(["namelist=CBG.",list,";"]); # List of ports/subsystems [N,M]=size(namelist); # Number of ports/subsystems for j=1:N comp_name = deblank(namelist(j,:)); # Name of this component eval(["subsystem=CBG.",field,".",comp_name,";"]); # Pluck out the details comp = subsystem.connections; # Connections bond_list = abs(comp); direction = sign(comp)'*[1 1]; # Convert from arrow orientated to component orientated causality comp_bonds = CBG.bonds(bond_list,:).*direction; disp(["---- ", field, " ---"]); # Alias the args list -- if not at top level message = sprintf("\tfor component %s (%s) within %s",\ comp_name,subsystem.type,full_name); if struct_contains(CBG,"alias") subsystem.arg = alias_args(subsystem.arg,CBG.alias,";",message,infofilenum) subsystem.cr = alias_args(subsystem.cr,CBG.alias,";",message,infofilenum) endif; # Substitute positional ($1 etc) arguments subsystem.cr = subs_arg(subsystem.cr,system_cr, ... "lin",full_name,subsystem.type,comp_name,infofilenum); subsystem.arg = subs_arg(subsystem.arg,system_args, ... "1",full_name,subsystem.type,comp_name,infofilenum); # change name of 0 and 1 components -- matlab doesn't like numbers here if strcmp(subsystem.type,"0") subsystem.type = "zero"; endif; if strcmp(subsystem.type,"1") subsystem.type = "one"; endif; ports = length(bond_list); if subsystem.repetitions>1 port_pairs = ports/2; if round(port_pairs)~=port_pairs; mtt_info(["Repeated component ", comp_name, ... " has an odd number of ports - ignoring repetitions"], infofilenum); subsystem.repetitions = 1; endif; endif; if subsystem.repetitions>1 odd_bonds = bond_list(1:2:ports-1); even_bonds = bond_list(2:2:ports); endif; for k = 1:subsystem.repetitions if subsystem.repetitions>1 if k==1 bond_list(1:2:ports-1) = odd_bonds; else bond_list(1:2:ports-1) = bond_list(2:2:ports); endif; if k==subsystem.repetitions bond_list(2:2:ports) = even_bonds; else new_bonds = [next_bond:next_bond+port_pairs-1]; next_bond = next_bond+port_pairs; bond_list(2:2:ports) = new_bonds; endif; endif; # Invoke the appropriate equation-generating procedure name_r = full_name_repetition; eqn_name = [subsystem.type, "_eqn"] if exist(eqn_name)~=2 # Try a compound component disp("---PUSH---"); bond_list, comp_name, subsystem.type structure = cbg2ese(comp_name, subsystem.type, subsystem.cr, subsystem.arg, ... full_name, full_name_repetition, ... k, structure, structure_file, infofilenum); # Link up the bonds fprintf(ese_file, ... "\n\t%s Equations linking up subsystem %s (%s)\n\n", ... pc, comp_name, subsystem.type); name_comp_name = sprintf("%s_%s_%d", ... full_name_repetition, comp_name, k); printf("\n\t%s Equations linking up subsystem %s (%s)\n\n",\ pc, comp_name, subsystem.type); bond_list u_index = 0; y_index = 0; # Count the inputs and outputs for port_number=1:length(bond_list) # Effort if comp_bonds(port_number,1)==1 # Source u_index = u_index + 1; fprintf(ese_file, "%s_MTTu%d := %s;\n", ... name_comp_name, u_index, varname(name_r, ... bond_list(port_number),1)); else # Sensor y_index = y_index + 1; fprintf(ese_file, "%s := %s_MTTy%d;\n", ... varname(name_r, ... bond_list(port_number),1), name_comp_name, y_index); end; # Flow if comp_bonds(port_number,2)==-1 # Source u_index = u_index + 1; fprintf(ese_file, "%s_MTTu%d := %s;\n", ... name_comp_name, u_index, varname(name_r, ... bond_list(port_number),-1)); else # Sensor y_index = y_index + 1; fprintf(ese_file, "%s := %s_MTTy%d;\n", ... varname(name_r, ... bond_list(port_number),-1), name_comp_name, y_index); end; end; disp("---POP---"); else # its a simple component fprintf(ese_file, "\n\t%s Equations for component %s (%s), repetition %d\n\n", ... pc, comp_name, subsystem.type,k); # # Is it a named port? (Name begins with [) # Named_Port = (comp_name(1)=="["); if strcmp(field,"ports") #Add [ to start of name name_r = ["[" name_r]; endif; # Save the current structure old_structure = structure; # Generate the simple component equations eval(["structure = ", ... eqn_name, ... "(name_r,bond_list,comp_bonds, ... direction,subsystem.cr,subsystem.arg,structure,ese_file);" ]); # If structure has changed, write info to structure file. structure_change = structure-old_structure; # The following line is to avoid probs with multiport C or I # it needs changing to handle multi ports correctly structure_changes = sum(structure_change); structure_change = structure_change>zeros(size(structure_change)); if structure_changes>0 which_indices = getindex(structure_change,1); which_indices = which_indices(:,2)'; for which_index=which_indices value = structure(which_index); value_change=value-old_structure(which_index); for k=1:value_change fprintf(structure_file, ... "%s\t%1.0f\t%s\t%s\t%1.0f\n", ... structure_name(which_index,:), value-k+1, ... comp_name, full_name, repetition); endfor; endfor; endif; end; end; endfor # [subsystem,comp_name] = CBG_field endif # struct_contains(CBG,field) endfor # i=1:2 # Close the files fclose(ese_file); endfunction