#! /bin/sh
######################################
##### Model Transformation Tools #####
######################################
# Bourne shell script: abg2cbg_m
#
# Acausal bond graph to causal bond graph: mfile format
###############################################################
## Version control history
###############################################################
## $Header$
## $Log$
###############################################################
# The causal BG is described by four matrices
# (the same structure as the acausal BG except that Causality is 1 ot -1):
# junctions: describes the junctions -
# Column 1 Index of component (see components)
# Column 2.. Indices of bonds on junction (see jbonds)
# rows may be padded with zeros
#
# cjbonds: describes the true bonds -
# Column 1 Index of component (see components)
# Column 2 Direction
# 1 away from junction
# -1 towards junction
# Column 3 Effort causality
# 1 stroke at arrow end
# -1 stroke at other end
# 0 no stroke (ie acausal)
# Column 4 Flow causality
# 1 stroke at arrow end
# -1 stroke at other end
# 0 no stroke (ie acausal)
# Columns 5:6 x,y coordinates of non-arrow end (in Fig)
# Columns 7:8 x,y coordinates of arrow end (in Fig)
#
# mbonds: describes the modulation bonds -
# Column 1 Index of component at non-arrow end
# Column 2 Index of component at arrow end
# Columns 4:5 x,y coordinates of non-arrow end (in Fig)
# Columns 6:7 x,y coordinates of arrow end (in Fig)
#
# components: describes the comonents -
# Column 1 Type of component
# 0 0-junction
# 1 1-junction
# 2 R component
# 3 C component
# 4 I component
# 11 TF component
# 12 GY component
# 13 A component
# Column 2 Flag for explicit junction
# 4 Explicit component (4 means text type)
# 0 Implicit component
# Column 3-14 fig file information (see fig documentation)
#
# Lists of under- and over-causal junctions are displayed.
#
# P.J.Gawthrop May 1996
# Copyright (c) P.J.Gawthrop, 1996.
# P.J.Gawthrop May 1996
# Copyright (c) P.J.Gawthrop, 1996.
infofile='mtt_info.txt';
# Remove the old log file
rm -f abg2cbg_m.log
rm -f $1_cbg.m
rm -f mtt_info.txt
#Inform user
echo Creating $1_cbg.m
# Use matrix manipulation to accomplish the transformation
$MATRIX >abg2cbg_m.log 2>>abg2cbg_m.log << EOF
infofile= '$infofile';
%Convert from acausal to causal bond graph in m-file form.
[bonds,components] = $1_abg;
system_name = '$1';
[cbonds,status] = abg2cbg(system_name,bonds,infofile);
%Write the function m-file for the causal bond graph
filename = '$1_cbg.m';
c = '%';
fprintf(filename, 'function [cbonds,status] = $1_cbg\n');
fprintf(filename, '%s [cbonds,status] = $1_cbg\n', c);
fprintf(filename, '%s Causal bond graph created by MTT on %s \n\n', ...
c, date);
mat2mfile(cbonds, 'cbonds', filename);
mat2mfile(status, 'status', filename);
EOF
cat mtt_info.txt