#! /bin/sh
######################################
##### Model Transformation Tools #####
######################################
# Bourne shell script: dat2gdat
# Converts a data file in data format to gplot data format
# Copyright (c) P.J.Gawthrop, 1997.
###############################################################
## Version control history
###############################################################
## $Id$
## $Log$
## Revision 1.8 1998/09/29 20:01:27 peterg
## 4th argument for nyquist style files - ie differnt x for each y
##
## Revision 1.7 1997/12/04 22:10:32 peterg
## Handles argument list - variable names.
##
## Revision 1.6 1997/05/22 10:34:05 peterg
## Changed argument structure.
##
## Revision 1.5 1997/05/22 10:11:19 peterg
## Fixed parametetr bug
##
# Revision 1.4 1997/05/16 13:03:10 peterg
# Now selects variables to display.
#
# Revision 1.3 1996/08/26 13:02:58 peterg
# Cahged awk to awk.
#
# Revision 1.2 1996/08/15 11:49:11 peter
# Puts a blank line at the end of the file:
# this allows user to cat files for use in gnuplot.
#
## Revision 1.1 1996/08/14 09:13:52 peter
## Initial revision
##
###############################################################
echo Creating $1_$2.gdat
rm -f $1_$2.gdat
DifferentX=$4;
# Convert multi-columns into gnuplot format -
# ie stack two columns vertically separated by blank lines
#Get the desired data index
which=`name2index $1 "$3"`
if [ -z "$DifferentX" ]; then
awk '
BEGIN{
row=0; col=0;
}
{
if (row==0) {
N=split(which,Which,",");
}
row++;
j=1;
if (Which[1]==0) {
x[row] = $1;
for (i=1; i<NF; i++) {
ycol = i+1;
y[row,j++] = $ycol;
}
}
else {
xcol = Which[1];
x[row] = $xcol
for (i=1; i<N; i++) {
ycol = Which[i+1];
y[row,j++] = $ycol;
}
}
cols=j-1;
}
END {
rows = row;
for (col = 1; col <= cols; col++) {
for (row = 1; row <= rows; row++) {
print x[row], y[row,col]
};
if (col<=cols) {
printf("\n")
}
}
}' which="$which" <$1_$2.dat > $1_$2.gdat
else
awk '
BEGIN{
row=0; col=0;
}
{
row++; cols=NF/2
for (i=1; i<=cols; i++) {
ycol=2*i;
xcol=ycol-1;
x[row,i] = $xcol
y[row,i] = $ycol;
}
}
END {
rows = row;
for (col = 1; col <= cols; col++) {
for (row = 1; row <= rows; row++) {
print x[row,col], y[row,col]
};
if (col<=cols) {
printf("\n")
}
}
}' <$1_$2.dat > $1_$2.gdat
fi