# Copyright (C) 2000 by Peter J. Gawthrop

###############################################################
## Version control history
###############################################################
## $Header$
## $Log$
## Revision 1.293.2.6  2001/03/03 06:50:38  geraint
## Added #SUMMARY lines for ode2odes.
##
## Revision 1.293.2.5  2001/03/03 00:27:14  geraint
## Fixed ar options to work with GNU ar. Allow mtt to create dependencies for mtt_%.cc when making mtt_%.oct.
##
## Revision 1.293.2.4  2001/03/02 00:45:21  geraint
## Separated Euler and Implicit methods in .cc code and dependencies.
##
## Revision 1.293.2.3  2001/03/01 05:05:53  geraint

			integration_method=euler;
                        mtt_switches="$mtt_switches euler";
			;;
		    implicit)
			integration_method=implicit;
                        mtt_switches="$mtt_switches implicit";
			;;
		    rk4)
			integration_method=rk4;
			mtt_switches="$mtt_switches rk4";
			;;
		    *)
			echo $1 is an unknown integration method - use euler or implicit;
			echo $1 is an unknown integration method - use euler, rk4 or implicit;
                        exit;;
		esac;;
	-s )
                mtt_switches="$mtt_switches $1";
		sensitivity=sensitivity ;;
	-ss )
                mtt_switches="$mtt_switches $1";

    echo '         -D  debug -- leave log files etc'
    echo '         -I  prints more information'
    echo '         -abg start at abg.m representation'
    echo '         -c  c-code generation'
    echo '         -d  <dir>  use directory <dir>'
    echo '         -dc Maximise derivative (not integral) causality'
    echo '         -dc Maximise derivative (not integral) causality'
    echo '         -i <implicit|euler>   Use implicit or euler integration'
    echo '         -i <implicit|euler|rk4>   Use implicit, euler or rk4 integration'
    echo '         -o ode is same as dae'
    echo '         -oct use oct files in place of m files where appropriate'
    echo '         -opt optimise code generation'
    echo '         -p  print environment variables'
    echo '         -partition partition hierachical system'
    echo '         -r  reset time stamp on representation'
    echo '         -s  try to generate sensitivity BG (experimental)'

	@echo > /dev/null
$1_ode2odes_common.o    : $1_input.o   $1_logic.o   $1_numpar.o   $1_simpar.o   $1_state.o
	@echo "Creating $1_ode2odes_common.o"
	ar -cr \$@ \$^
$1_ode2odes_common.oct  : $1_input.oct $1_logic.oct $1_numpar.oct $1_simpar.oct $1_state.oct
	@echo > /dev/null

$1_ode2odes_euler.m     : $1_ode.m     $1_odeo.m
$1_ode2odes_euler.m  $1_ode2odes_rk4.m    : $1_ode.m     $1_odeo.m
	@echo > /dev/null
$1_ode2odes_euler.cc    : $1_ode.cc    $1_odeo.cc
$1_ode2odes_euler.cc $1_ode2odes_rk4.cc   : $1_ode.cc    $1_odeo.cc
	@echo > /dev/null
$1_ode2odes_euler.o     : $1_ode.o     $1_odeo.o   mtt_euler.o
	@echo "Creating $1_ode2odes_euler.o"
$1_ode2odes_euler.o  $1_ode2odes_rk4.o    : $1_ode.o     $1_odeo.o   mtt_euler.o
	@echo "Creating \$@"
	ar -cr \$@ \$^
$1_ode2odes_euler.oct   : $1_ode.oct   $1_odeo.oct mtt_euler.oct
	@echo > /dev/null

$1_ode2odes_implicit.m  : $1_cseo.m    $1_csex.m   $1_smxa.m   $1_smxax.m
	@echo > /dev/null
$1_ode2odes_implicit.cc : $1_cseo.cc   $1_csex.cc  $1_smxa.cc  $1_smxax.cc

ifeq ($using_oct,yes)
	touch $1_ode2odes.m # Create a dummy which wont' be used
	mtt $mtt_switches -q -u $1 ode2odes oct
else
	make_ode2odes $1 m $integration_method
endif
endif
ifeq ($integration_method,euler)
ifneq ($integration_method,implicit)
$1_ode2odes.m : $1_def.r $1_sympars.txt\
		$1_simpar.m $1_numpar.m $1_state.m $1_input.m \
		$1_ode.m $1_odeo.m  $1_logic.m
ifeq ($using_oct,yes)
	echo "*** Warning: Shouldn't be here! Creating dummy $1_ode2odes.m"
	touch $1_ode2odes.m # Create a dummy which wont' be used
	mtt $mtt_switches -q -u $1 ode2odes oct

ifeq ($integration_method,implicit)
$1_ode2odes.p : $1_ode2odes.m $1_def.r $1_smxa.p $1_smxax.p\
		$1_simpar.p $1_numpar.p $1_state.p $1_input.p \
		$1_csex.p $1_cseo.p  $1_logic.p
	mtt_m2p $1_ode2odes.m $integration_method $stdin
endif
ifeq ($integration_method,euler)
ifneq ($integration_method,implicit)
$1_ode2odes.p : $1_ode2odes.m $1_def.r\
		$1_simpar.p $1_numpar.p $1_state.p $1_input.p \
		$1_ode.p $1_odeo.p  $1_logic.p
	mtt_m2p $1_ode2odes.m $integration_method $stdin
endif

$1_ode2odes.c: $1_ode2odes.p 

#! /bin/sh

     ###################################### 
     ##### Model Transformation Tools #####
    ######################################

###############################################################
## Version control history
###############################################################
## $Id$
## $Log$
## Revision 1.51.2.6  2001/03/16 03:56:13  geraint
## Removed psignal/siginfo.h - problematic and unnecessary.
##
## Revision 1.51.2.5  2001/03/12 23:16:37  geraint
## Minor improvements to signal handling (.exe).
##
## Revision 1.51.2.4  2001/03/12 03:59:30  geraint
## SIGINT  (C-c C-c) now causes simulation data to be dumped to MTT.core.
## SIGQUIT (C-c C-\) as for SIGINT, then raises default SIGQUIT.
## SIGFPE  as for SIGINT, then raises default SIGABRT.

  mttj = 0;
    for it = 1:ilast		#Integration loop
    [u] = ${sys}_input(x,y,t,par);	# Input
    [y] = ${sys}_$odeo(x,u,t,par);  # Output 
    if mttj==0
     mtt_write(t,x,y,$Nx,$Ny);   # Write it out
    endif
EOF

if [ "$method" = "rk4" ]; then
cat << EOF >> $filename
    [k1] = ddt * ${sys}_${ode}(x,u,t,par);
    [k2] = ddt * ${sys}_${ode}(x+k1/2,u,t+ddt/2,par);
    [k3] = ddt * ${sys}_${ode}(x+k2/2,u,t+ddt/2,par);
    [k4] = ddt * ${sys}_${ode}(x+k3,u,t+ddt,par);
    [dx] = [k1 + 2.0 * [k2 + k3] + k4] / (6.0 * ddt);
EOF
else
cat << EOF >> $filename
    [dx] = ${sys}_$ode(x,u,t,par);	# State derivative
EOF
fi

if [ "$method" = "implicit" ]; then
cat<< EOF >> $filename

    [AA] = ${sys}_smxa(x,u,ddt,par);	# (I-Adt) and (I-Adt)x
    [AAx] = ${sys}_smxax(x,u,ddt,par); # (I-Adt) and (I-Adt)x

    {
      y	= mtt_${odeo} (x, u, t, par);
      u	= mtt_input (x, y, t, par);
      if (0 == j)
	{
           mtt_write (t, x, y, nrows);
	}
EOF
if [ "$method" = "rk4" ]; then
cat << EOF >> $filename
      {
        static ColumnVector
          k1 (MTTNX,0.0),
          k2 (MTTNX,0.0),
          k3 (MTTNX,0.0),
          k4 (MTTNX,0.0);

        const double
          t1 = t + ddt/2.0,
          t2 = t + ddt;

        ColumnVector
          x1 (x),
          x2 (x),
          x3 (x);

        k1 = ddt * mtt_${ode} (x , u, t , par); x1 += k1 * 0.5;
        k2 = ddt * mtt_${ode} (x1, u, t1, par); x2 += k2 * 0.5;
        k3 = ddt * mtt_${ode} (x2, u, t1, par); x3 += k3;
        k4 = ddt * mtt_${ode} (x3, u, t2, par);
        dx = (k1 + 2.0 * (k2 + k3) + k4) / (6.0 * ddt);
      }
EOF
else
cat << EOF >> $filename
      dx = mtt_${ode} (x, u, t, par);
EOF
fi

if [ "$method" = "implicit" ]; then
cat <<EOF >> $filename

      AA = mtt_smxa (x, u, ddt, par);
      AAx = mtt_smxax (x, u, ddt, par);
EOF