Hello all,
To follow up the mail I sent yesterday, here are a couple of lines (if
anyone is interested) that can be added to the get_rproj script so it
outputs a table of radius coordinates and counts per pixel with errors,
which can be put straight into Chips (or any other plotter) to get a
radial profile.
After the line
printf " ------ ------ ---- --- -------- -------
-------\n"
(line 109) add the lines...
if test -f radprof.dat #test if radprof.dat exists, and remove it if so.
then
rm radprof.dat
fi
and after the line
neterr=`echo "sqrt($errsq)" | bc -l`
(about line 150 after the previous lines are added) add...
region="`cat $srcreg`"
rad="`echo $region | awk -F, '{print (($3+$4)/2.0)}'`" #calculate radius
# as midway between the inner and outer radii of the annulus.
echo "$rad $net $neterr" >> radprof.dat #append file radprof.dat
This will then create a file radprof.dat and write 3 columns to it,
containing the midpoint radius of each annuli, the counts per pixel, and
the error in counts per pixel.
The command
curve radprof.dat x 1 y 2 yerr 3
in Chips will plot a radial profile.
Note that each time the script is used it will overwrite any file called
radprof.dat, so rename any that you want to keep!
Ben Maughan
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