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# DOARCS -- Determine dispersion relation for spectrum based on reference arcs.
procedure doarcs (spec, response, arcref, arcaps, arcbeams, reextract,
arcap, logfile, batch)
file spec
file response
file arcref
string arcaps
string arcbeams
bool reextract
bool arcap
file logfile
bool batch
struct *fd
begin
string imtype, ectype
int i, j, k, n
file temp, arc1, arc2, str1, str2, arctype, apref, arc, arcec, logs
file specec, specarc
bool verbose1
imtype = "." // envget ("imtype")
i = stridx (",", imtype)
if (i > 0)
imtype = substr (imtype, 1, i-1)
ectype = ".ec" // imtype
n = strlen (imtype)
temp = mktemp ("tmp$iraf")
if (batch)
verbose1 = no
else
verbose1 = verbose
if (verbose1)
logs = logfile//",STDOUT"
else
logs = logfile
# Separate simultaneous arc from object.
specec = spec // ".ec"
if (arcaps != "" || arcbeams != "")
specarc = spec // "arc1.ec"
else
specarc = ""
if (specarc != "") {
scopy (specec, specarc, w1=INDEF, w2=INDEF, apertures=arcaps,
bands="", beams="", apmodulus=0, format="multispec",
renumber=yes, offset=0, clobber=yes, merge=no, verbose=no)
scopy (specec, "", w1=INDEF, w2=INDEF, apertures="!"//arcaps,
bands="", beams="", apmodulus=0, format="multispec",
renumber=yes, offset=0, clobber=yes, merge=no, verbose=no)
}
for (j=1; j<=2; j+=1) {
# The reference spectra refer initially to the 2D image. At the
# end we will reset them to refer to the 1D spectra.
hselect (spec, "refspec"//j, yes, > temp)
fd = temp
k = fscan (fd, arc1, str1)
fd = ""; delete (temp, verify=no)
if (k < 1)
break
# Strip possible image extension.
i = strlen (arc1)
if (i > n && substr (arc1, i-n+1, i) == imtype)
arc1 = substr (arc1, 1, i-n)
# Set extraction output and aperture reference depending on whether
# the arcs are to be rextracted using recentered or retraced object
# apertures.
if (arcap &&
(apscript.ansrecenter=="yes" || apscript.anstrace=="yes" ||
apscript.ansrecenter=="YES" || apscript.anstrace=="YES")) {
arc2 = spec // arc1
apref = spec
if (access (arc2//ectype))
imdelete (arc2//ectype, verify=no)
delete (database//"/ec"//arc2//".ec*", verify = no)
} else {
arc2 = arc1
apref = apscript.references
}
# Arcs are reidentified using the user refit option.
# Also internal arcs are checked if HENEAR.
hselect (arc1, "arctype", yes, > temp)
fd = temp
i = fscan (fd, arctype)
fd = ""; delete (temp, verify=no)
# Extract and determine dispersion function if necessary.
if (!access (arc2//ectype)) {
if (!batch)
print ("Extract and reidentify arc spectrum ", arc1)
print ("Extract and reidentify arc spectrum ", arc1, >> logfile)
apscript (arc1, output=arc2//".ec", references=apref,
ansrecenter="NO", ansresize="NO", ansedit="NO",
anstrace="NO", background="none",
clean=no, weights="none", verbose=verbose1)
if (response != "")
sarith (arc2//".ec", "/", response, arc2//".ec", w1=INDEF,
w2=INDEF, apertures="", bands="", beams="", apmodulus=0,
reverse=no, ignoreaps=no, format="multispec",
renumber=no, offset=0, clobber=yes, merge=no, errval=0,
verbose=no)
if (arcaps != "") {
scopy (arc2//".ec", arc2//"arc.ec", w1=INDEF, w2=INDEF,
apertures=arcaps, bands="", beams="", apmodulus=0,
format="multispec", renumber=yes, offset=0,
clobber=yes, merge=no, verbose=no)
scopy (arc2//".ec", "", w1=INDEF, w2=INDEF,
apertures="!"//arcaps, bands="", beams="",
apmodulus=0, format="multispec", renumber=yes, offset=0,
clobber=yes, merge=no, verbose=no)
ecreidentify (arc2//"arc.ec", arcref//"arc.ec", shift=0.,
cradius=params.cradius, threshold=params.threshold,
refit=yes, database=database, logfiles=logs)
imdelete (arc2//"arc.ec", verify=no)
}
ecreidentify (arc2//".ec", arcref//".ec", shift=0.,
cradius=params.cradius, threshold=params.threshold,
refit=yes, database=database, logfiles=logs)
# If not reextracting arcs based on object apertures
# then save the extracted arc to avoid doing it again.
if (arc1 != arc2)
imdelete (arc2//".ec", verify=no)
}
# Set the REFSPEC parameters for echelle spectrum.
if (k == 1)
hedit (specec, "refspec"//j, arc2//".ec", add=yes,
verify=no, show=no, update=yes)
else
hedit (specec, "refspec"//j, arc2//".ec "//str1,
add=yes, verify=no, show=no, update=yes)
# Check for arc fibers in object spectra.
if (specarc != "") {
if (!batch)
print ("Reidentify arc fibers in ", spec,
" with respect to ", arc1)
print ("Reidentify arc fibers in ", spec,
" with respect to ", arc1, >> logfile)
delete (database//"/ec"//specarc, verify = no, >& "dev$null")
ecreidentify (specarc, arc2//"arc.ec", shift=0.,
cradius=params.cradius, threshold=params.threshold,
refit=no, database=database, logfiles=logs)
hedit (specec, "refshft"//j, specarc,
add=yes, verify=no, show=no, update=yes)
imrename (specarc, spec//"arc"//j+1//".ec", verbose=no)
specarc = spec // "arc" // j+1 // ".ec"
}
}
if (specarc != "")
imdelete (specarc, verify=no)
end
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