Overview
Comment:Octave m files for generating sorted equations _sese.r
Downloads: Tarball | ZIP archive | SQL archive
Timelines: family | ancestors | descendants | both | origin/master | trunk
Files: files | file ages | folders
SHA3-256: 0e41d1033ca447759fa16492b0188ee937c482981fa9e3cd515d1b2f67db1e5e
User & Date: gawthrop@users.sourceforge.net on 2003-03-13 15:32:37
Other Links: branch diff | manifest | tags
Context
2003-03-13
15:43:36
Helper for _sese generation check-in: 5d463df513 user: gawthrop@users.sourceforge.net tags: origin/master, trunk
15:32:37
Octave m files for generating sorted equations _sese.r check-in: 0e41d1033c user: gawthrop@users.sourceforge.net tags: origin/master, trunk
15:19:04
Now uses __ to delimit subsystems in names. check-in: 2cf0c97f97 user: gawthrop@users.sourceforge.net tags: origin/master, trunk
Changes
Hide Diffs Side-by-Side Diffs Ignore Whitespace Patch

Added mttroot/mtt/bin/trans/m/mtt_check_sigs.m version [f2ac476a38]. 


























1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24

+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+

function N = mtt_check_sigs (outsig,insigs)

  ## usage:  N = mtt_check_sigs (outsig,insigs)
  ##
  ## 

  ##  A signal has the columns: bond number signal causality (+1 or -1)
  ##  and component port number

  M=3;

  ## Sanity check
  [N_out,M_out] = size(outsig);
  if N_out<>1
    error("There must be exactly one outbond");
  endif
  [N_in,M_in] = size(insigs);
  if (M_out!=M)||(M_in!=M)
    error(sprintf("There must be exactly %i elements to a bond (number, causality, port)",M));
  endif

  N = N_in;

endfunction








Added mttroot/mtt/bin/trans/m/mtt_component_eqn.m version [adbc638c46].








































































































































































































































































































1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292

+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+

function [known] = mtt_component_eqn (fullname, port, causality, known)

  ## function [known] = mtt_component_eqn (fullname, port, causality, known)
  ##
  ## Recursively finds the equations giving the signal of specified
  ## causality on the specified port of component named "name" within
  ## subsystem Name 

  ## fullname:  name of component and subsystem
  ## port: port number of component
  ## causality: effort or flow
  ## know_list: list of components already known

  ## Data structures.
  ## A signal is a row vector containing three numbers:
  ##   Index -- a unique (within a subsystem) signed integer
  ##            abs(index) is the unique bond number, sign is the direction.
  ##   Causality -- 1 for effort, -1 for flow
  ##   Port -- the port of the component to which it is connected.
  ## 

  [Name,name] = mtt_subname(fullname); # Split fullname

  SD = "__";			# Subsystem delimiter
  CD = "\n%%";			# Comment delimiter

  DEBUG = 0;

  if DEBUG
    disp("=======================================");
    fullname, name, Name, port,causality,known
  endif
  
  eqn="## No equation -- something wrong"; # Default

  if length(known)<2		# Invalid
    known = "  ";
  endif
  
  ## File containing data structure
  cbg_file = sprintf("%s_cbg",Name);

  if (exist(cbg_file)==0)
    error(sprintf("mtt_component_eqn: subystem \"%s\" does not exist", Name));
  endif
  
  ## Subsystem data structure
  cbg = eval(sprintf("%s;", cbg_file));

  if struct_contains (cbg, "ports")
    ## Combine ports with the other subsystems
    for [component_structure, component] = cbg.ports
      eval(sprintf("cbg.subsystems.%s=cbg.ports.%s;",component,component));
    endfor
  endif
  

  ## Call to a subsystem (represented by name="")
  if strcmp(name,"")
    if !struct_contains(cbg,"portlist")
      N_ports = 0;
    else
      [N_ports,M_ports] = size(cbg.portlist);
    endif
    
    if port>N_ports
      error(sprintf("port (%i) > N_ports (%i)", port, N_ports));
    else			# Get name and find equation
      name = deblank(cbg.portlist(port,:));
      if DEBUG
	disp("----> lower-level system")
      endif
      known = mtt_component_eqn (mtt_fullname(Name,name), 1, causality, known);
      return
    endif
  endif
  

  ## Other causality representations
  if strcmp(causality,"effort")
    i_cause = 1;
    othercausality = "flow";
    index_cause = 1;
    cause = "e";
  elseif strcmp(causality,"flow")
    i_cause = -1;
    othercausality = "effort";
    index_cause = 2;
    cause = "f";
  else
    error(sprintf("mtt_component_eqn: causality %s invalid", causality));
  endif
  
  ## A useful composite name
  name_port_cause = sprintf("%s_%i_%s",name, port, cause);
  full_name_port_cause = mtt_fullname(Name,name_port_cause);

  ## If value is known, don't do anything.
  if findstr(sprintf(" %s ", full_name_port_cause), known)>0
    eqn = sprintf("%s The %s signal on port %i of %s is known already", \
		  CD, causality, port, name);
    return
  else			# Add to list
    known = sprintf("%s %s", known, full_name_port_cause);
  endif
  
  
  
  ## Component type
  comp_type = eval(sprintf("cbg.subsystems.%s.type;", name));
  if DEBUG
    comp_type
  endif
  
  ## Component cr
  cr = eval(sprintf("cbg.subsystems.%s.cr;", name));

  ## Component arg
  arg = eval(sprintf("cbg.subsystems.%s.arg;", name));

  ## To which bond(s) is the component connected?
  connections = eval(sprintf("cbg.subsystems.%s.connections;", name));
  bond_list = abs(connections);	# Unsigned list 
  out_bond_number = bond_list(port);	# The bond at the output of this component
  direction = sign(connections); # Bond directions
  directions = direction'*[1 1]; 

  ## List of system bonds
  bonds = cbg.bonds;

  ## List of component bond causality (component-orientated causality)
  comp_bonds = bonds(bond_list,:).*directions; # Component bonds

  ## What components are at the other ends of the in bonds?
  ## Effort
  [in_e_bonds,in_e_components,in_e_ports,N_e] = mtt_component_inputs \
      (name,comp_type,causality,"effort",comp_bonds,connections,cbg);
  ## Flow
  [in_f_bonds,in_f_components,in_f_ports,N_f] = mtt_component_inputs \
      (name,comp_type,causality,"flow",comp_bonds,connections,cbg);


  ##Composite values
  N_ef = N_e + N_f;
  in_ef_bonds = [in_e_bonds; in_f_bonds];
  in_ef_components = [in_e_components; in_f_components];
  in_ef_ports = [in_e_ports; in_f_ports];
  in_causality = [ones(N_e,1); -ones(N_f,1)];

  ## Lists of signals relevant to this component
  outsig = [out_bond_number i_cause port];
  insigs = [in_ef_bonds in_causality in_ef_ports];
  innames = in_ef_components;

  if DEBUG
    outsig
    insigs
    innames
  endif
  
  ## Is the signal the output of a port?
  is_port_output = 0;			# Default
  if struct_contains (cbg, "ports")
    if struct_contains (cbg.ports,name)
      is_port_output = (outsig(2)!=insigs(1,2));
    endif
  endif
  
  if is_port_output
    ## Which port (number) is it?
    [N_ports,M_ports] = size(cbg.portlist);
    for i=1:N_ports
      if strcmp(deblank(cbg.portlist(i,:)), name)
	port_index = i;
	break;
      endif
    endfor

    ## File containing data structure
    NAME = mtt_subname(Name);
    Cbg_file = sprintf("%s_cbg",NAME);

    if (exist(Cbg_file)==0)
      error(sprintf("mtt_component_eqn: subsystem %s does not exist", NAME));
    endif
    
    ## System data structure
    Cbg = eval(sprintf("%s;", Cbg_file));
    
    
    ## And to which component (at higher level) is it connected?
    [new_Name,new_name] = mtt_subname(Name);
    port_bond = eval(sprintf("Cbg.subsystems.%s.connections(%i);", new_name, port_index));
    [in_name, in_port, in_bond] = mtt_other_end (new_name,port_bond,Cbg);

    ## Find its equation
    if DEBUG
      disp("----> higher level system")
    endif
    

    known = mtt_component_eqn (mtt_fullname(new_Name,in_name), in_port, causality, known);

    LHS = Source_seqn ("external",Name);
    RHS = varname(NAME, abs(in_bond), i_cause);
    eqn = sprintf("%s%s%s := %s;", LHS, SD, name, RHS);

    if !DEBUG
      comment = sprintf("%s PORT", CD);
      disp(sprintf("%s\n%s",comment, eqn));
    endif

  endif
  

  ## Handle special components
  if strcmp(comp_type,"0")||strcmp(comp_type,"1") # Junctions
    [eqn,insigs,innames] = junction_seqn (comp_type,Name, outsig, \
					  insigs, innames);
  else				# Everything else
    if exist(sprintf("%s_cause", comp_type)) # Simple component
      ## Do the equations
      [eqn,insigs,innames] = eval(sprintf("%s_seqn (Name, name, cr, arg, outsig, insigs, innames);", comp_type));
    else			# Compound component
      new_NAME = Name;
      new_Name = mtt_fullname(Name,name);
      new_name = "";
      
      ## File containing data structure
      Cbg_file = sprintf("%s_cbg",new_Name);

      if (exist(Cbg_file)==0)
	error(sprintf("mtt_component_eqn: subsystem %s does not exist", new_Name));
      endif
      
      ## System data structure
      Cbg = eval(sprintf("%s;", Cbg_file));
      port_name = Cbg.portlist(port,:);

      LHS = varname(Name, outsig(1,1), outsig(1,2));
      RHS = Sensor_seqn ("external",new_Name);
      eqn = sprintf("%s := %s%s%s;", LHS, RHS, SD, port_name);

      if DEBUG
	disp("----> same-level subsystem")
      endif

      [known] = mtt_component_eqn \
   	  (mtt_fullname(new_Name,new_name), port, causality, known);
      
    endif
  endif

  comment = \
      sprintf("%s Equation for %s signal on port %i of %s (%s), subsystem %s.", \
     	      CD, causality, port, name, comp_type, Name);

  if DEBUG
    disp(sprintf("%s\n%s",comment, eqn));
  endif
  
  is_external = mtt_is_external(comp_type,outsig, insigs, is_port_output);

  if !is_external
    ## Find the corresponding input equations
    [N_other,M_other] = size(insigs);
    for i = 1:N_other
      if insigs(i,2)==1
	other_causality = "effort";
      else
	other_causality = "flow";
      endif

      other_port = insigs(i,3);
      other_name = deblank(innames(i,:));
      if DEBUG
	disp("----> same-level component")
      endif
      

      [known] = mtt_component_eqn \
    	  (mtt_fullname(Name,other_name), other_port, other_causality, known);
    endfor
  endif

  ## Write this signal
  ##comment_2 = sprintf("Connected to:%s", in_component_list);
  if !DEBUG
    disp(sprintf("%s\n%s",comment, eqn));
  endif

endfunction








Added mttroot/mtt/bin/trans/m/mtt_component_inputs.m version [654cc2c381].


































1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30

+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+

function [in_bonds,in_components,in_ports,N] = mtt_component_inputs \
      (name,comp_type, out_causality, causality,comp_bonds,bond_list,cbg)

  ## usage:  [in_bonds,in_components,in_ports,N] = mtt_component_inputs 
  ##      (name,comp_type, out_causality, causality,comp_bonds,bond_list,cbg)
  ##
  ## 


  ## Other causality representations  if strcmp(causality,"effort")
  if strcmp(causality,"effort")
    i_cause = 1;
    othercausality = "flow";
    index_cause = 1;
  elseif strcmp(causality,"flow")
    i_cause = -1;
    othercausality = "effort";
    index_cause = 2;
  else
    error(sprintf("mtt_component_eqn: causality %s invalid", causality));
  endif
  
  in_index = find(comp_bonds(:,index_cause)==i_cause);
  all_in_bonds = bond_list(in_index);
  N_all = length(all_in_bonds);

  ## What components are at the other ends of the in bonds?
  [in_components,in_ports,in_bonds] = mtt_other_end (name,all_in_bonds,cbg);
  N = length(in_bonds);
endfunction








Added mttroot/mtt/bin/trans/m/mtt_fullname.m version [95049fcb51].














1
2
3
4
5
6
7
8
9
10

+
+
+
+
+
+
+
+
+
+

function fullname = mtt_fullname (subname,compname)

  ## usage:  fullname = mtt_fullname (subname,compname)
  ##
  ## Finds the standard mtt name of the component

  delim = "__";
  fullname = sprintf("%s%s%s", subname, delim, compname);

endfunction








Added mttroot/mtt/bin/trans/m/mtt_is_external.m version [07ce2338e2].























1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19

+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+

function is_external = mtt_is_external (comp_type,outsig, insigs, is_port)

  ## usage:  is_external = mtt_is_external (comp_type,outsig, insigs)
  ##
  ## 

  if nargin<4
    is_port = 0;
  endif

  is_external = 0;			# Default

  if strcmp(comp_type,"SS");
    is_external = insigs(1,2)!=outsig(2);
  else
    is_external = 0;
  endif

endfunction








Added mttroot/mtt/bin/trans/m/mtt_name2names.m version [38b510c144].
















1
2
3
4
5
6
7
8
9
10
11
12

+
+
+
+
+
+
+
+
+
+
+
+

function names = mtt_name2names (name)

  ## usage:  names = mtt_name2names (name)
  ##
  ## Converts standard mtt name to an array of subsystem names

  ## Copyright (C) 2003 by Peter J. Gawthrop

  delim ="__";			# MTT delimiter
  names = split(name,delim);

endfunction








Added mttroot/mtt/bin/trans/m/mtt_names2name.m version [569f4874eb].




















1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16

+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+

function name = mtt_names2name (names)

  ## usage:  name = names2name (names)
  ##
  ## Converts array of subsystem names to a standard mtt name

  delim ="__";			# MTT delimiter

  [n,m] = size(names);
  name = deblank(names(1,:));

  for i = 2:n
    name = sprintf("%s%s%s", name, delim, deblank(names(i,:)));
  endfor

endfunction








Added mttroot/mtt/bin/trans/m/mtt_other_causality.m version [1f9cfc8d6c].

























1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21

+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+

function other = mtt_other_causality (causality)

  ## usage:  other = mtt_other_causality (causality)
  ##
  ## 

  causality = deblank(causality);
  if strcmp(causality,"effort");
    other = "flow";
  elseif strcmp(causality,"flow");
    other = "effort";
  elseif strcmp(causality,"e");
    other = "f";
  elseif strcmp(causality,"f");
    other = "e";
  else
    error(sprintf("Causality \"%s\" not recognised",causality));
  endif
  

endfunction








Added mttroot/mtt/bin/trans/m/mtt_other_end.m version [dfe2387a77].































1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27

+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+

function [in_components,in_ports,in_bonds] = mtt_other_end (name,all_in_bonds,cbg);

  ## usage:  [in_components,in_ports,in_bonds] = mtt_other_end (name,all_in_bonds,cbg);
  ##
  ## 

  ## What components are at the other ends of the in bonds?
  in_components = "";
  in_ports = [];
  in_bonds = [];
  in_direction = [];
  for i = 1:length(all_in_bonds);
    for [component_structure, component] = cbg.subsystems
      if !strcmp(name,component)
	other_connections = component_structure.connections;
	one = ones(size(other_connections));
	port = find(abs(all_in_bonds(i))*one==abs(other_connections));
	if (length(port)==1)
	  in_components = [in_components; component];
	  in_bonds = [in_bonds; all_in_bonds(i)];
	  in_ports = [in_ports; port];
	endif
      endif
    endfor
  endfor

endfunction








Added mttroot/mtt/bin/trans/m/mtt_subname.m version [653459832d].
























1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20

+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+

function [subname, compname] = mtt_subname (name)

  ## usage:  subname = mtt_subname (name)
  ##
  ## Finds the subsystem name from the component name
  ## Copyright (C) 2003 by Peter J. Gawthrop


  names = mtt_name2names(name);
  [n,m] = size(names);

  if n<2			# Simple name
    subname = "";
    compname = name;
  else				# Compound name
    subname = mtt_names2name(names(1:n-1,:));
    compname = deblank(names(n,:));
  endif

endfunction






















MTT: Model Transformation Tools
[ GitHub | SourceHut | Sourceforge | Fossil RSS ]