#! /bin/sh
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##### Model Transformation Tools #####
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## Version control history
###############################################################
## $Id$
## $Log$
## Revision 1.19 1999/03/30 21:39:25 peterg
## In implicit approach, set derivatives to zero (when switch is off)
## before update. This seems to stop numerical leakage though non-return
## switches.
##
## Revision 1.18 1999/03/15 01:17:07 peterg
## Removed some spurious debugging code
##
## Revision 1.17 1999/03/15 01:09:15 peterg
## Fixed bugs when Nx=0 (no state)
##
## Revision 1.16 1999/03/06 02:28:38 peterg
## Rearranged evaluation to: state - input - output - write
##
## Revision 1.15 1999/03/06 02:19:43 peterg
## Changed args to _input
##
## Revision 1.14 1998/10/01 16:02:01 peterg
## Integration with switches handled separately fro Euler and Implicit.
##
## Revision 1.13 1998/09/30 17:41:24 peterg
## Implicit method now allows for switches via _switchA
##
## Revision 1.12 1998/08/27 08:55:18 peterg
## Mods to integration methods
##
## Revision 1.11 1998/08/25 12:28:31 peterg
## Move initila switch to after initial input
##
## Revision 1.10 1998/08/25 12:22:45 peterg
## Put _switch after update and also at initilisation
##
## Revision 1.9 1998/08/15 13:46:59 peterg
## New versions of integration routines
##
## Revision 1.8 1998/08/11 13:28:03 peterg
## Lowercase mttLAST etc
##
## Revision 1.7 1998/07/30 11:29:54 peterg
## Added implicit integration stuff
##
## Revision 1.6 1998/07/30 10:44:37 peterg
## INcluded othe integration methods.
##
## Revision 1.5 1998/07/26 11:02:20 peterg
## Put mtt or MTT in front of variable names to avoid clashes with
## globals
##
## Revision 1.4 1998/07/25 20:14:00 peterg
## update code added for flexibility and octave efficiency
##
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# Bourne shell script: make_ode2odes
# Copyright (c) P.J.Gawthrop July 1998.
# Tell user
echo Creating $1_ode2odes.m
Sys=$1
# Find system constants
Nx=`grep "MTTNx " <$Sys\_def.r | awk '{print $3}' | sed 's/;//'`
Nu=`grep "MTTNu " <$Sys\_def.r | awk '{print $3}' | sed 's/;//'`
Ny=`grep "MTTNy " <$Sys\_def.r | awk '{print $3}' | sed 's/;//'`
cat << EOF > $1_ode2odes.m
# Program $1_ode2odes
EOF
# Do the globals
sympar2global_txt2m $1 >> $1_ode2odes.m
# The rest of the program
cat << EOF >> $1_ode2odes.m
$1_simpar; # Read in simulation parameters
$1_numpar; # Read in parameters
MTTilast = round(mttlast/mttdt); # Total number of steps
#Initialise
MTTt = 0.0;
[MTTu] = zero_vector($Nu); # Zero the input
#if $Nx>0
[MTTx] = $1_state; # Read in initial state
#else
# MTTx = 0; # Dummy value
#endif;
[MTTy] = $1_odeo(MTTx,MTTu,MTTt); # Evaluate initial output
[MTTu] = $1_input(MTTt,MTTx,MTTy); # Evaluate initial input
mtt_write(MTTt,MTTx,MTTy,$Nx,$Ny); # And write them
[mttAA] = zero_matrix($Nx); # Zero the A matrix
[mttAAx] = zero_vector($Nx); # Zero the AAx vector
if $Nx>0
[MTTx] = $1_switch(MTTx); # Switches
endif;
if mttmethod==1 # Euler
MTTddt = mttdt/mttstepfactor; # The small sample interval
endif;
for MTTit = 1:MTTilast #Integration loop
if $Nx>0 # Dont if no states
if mttmethod==1 # Euler
for MTTjt = 1:mttstepfactor
[MTTdx] = $1_ode(MTTx,MTTu,MTTt); # State derivative
[MTTx] = mtt_euler(MTTx,MTTdx,MTTddt,$Nx); # Euler update
[MTTx] = $1_switch(MTTx); # Switches
MTTt = MTTt + MTTddt;
endfor;
endif;
if mttmethod==2 # Implicit
[MTTdx] = $1_ode(MTTx,MTTu,MTTt); # State derivative
#[MTTdx] = $1_switch(MTTx); # Set derivs to zero if states to zero
[mttAA,mttAAx] = $1_smx(MTTx,MTTu,mttdt); # (I-Adt) and (I-Adt)x
[mttAA] = $1_switcha(mttAA,MTTx); # Switches
[MTTx] = mtt_implicit(MTTx,MTTdx,mttAA,mttAAx,mttdt,$Nx); # Implicit update
MTTt = MTTt + mttdt;
endif;
else
MTTt = MTTt + mttdt;
endif; # $Nx>0
[MTTy] = $1_odeo(MTTx,MTTu,MTTt); # Output
[MTTu] = $1_input(MTTt,MTTx,MTTy); # Input
mtt_write(MTTt,MTTx,MTTy,$Nx,$Ny); # Write it out
endfor; # Integration loop
EOF