1 files changed, 123 insertions, 0 deletions
diff --git a/noao/imred/quadred/src/ccdproc/setfringe.x b/noao/imred/quadred/src/ccdproc/setfringe.x
new file mode 100644
index 00000000..7055f35f
--- /dev/null
+++ b/noao/imred/quadred/src/ccdproc/setfringe.x
@@ -0,0 +1,123 @@
+include	<imhdr.h>
+include	"ccdred.h"
+include	"ccdtypes.h"
+
+# SET_FRINGE -- Set parameters for fringe correction.
+#
+#   1.  Return immediately if the fringe correction is not requested or
+#	if the image has been previously corrected.
+#   2.  Get the fringe image and return error if the mkfringe flag is missing.
+#   3.  Set the processing flags and record the operation in the output
+#   	image and write a log record.
+
+procedure set_fringe (ccd)
+
+pointer	ccd			# CCD structure
+
+int	nc, nl, c1, c2, cs, l1, l2, ls, data_c1, ccd_c1, data_l1, ccd_l1
+real	exptime1, exptime2, fringescale
+pointer	sp, str, image, im
+
+bool	clgetb(), ccdflag()
+real	hdmgetr()
+pointer	ccd_cache()
+errchk	cal_image, ccd_cache, ccdproc, hdmgetr
+
+begin
+	# Check if the user wants this operation or if it has been done.
+	if (!clgetb ("fringecor") || ccdflag (IN_IM(ccd), "fringcor"))
+	    return
+
+	call smark (sp)
+	call salloc (image, SZ_FNAME, TY_CHAR)
+	call salloc (str, SZ_LINE, TY_CHAR)
+
+	# Get the fringe correction image.
+	call cal_image (IN_IM(ccd), FRINGE, 1, Memc[image], SZ_FNAME)
+
+	# If no processing is desired print fringe image name and return.
+	if (clgetb ("noproc")) {
+	    call eprintf (
+		"  [TO BE DONE] Fringe correction image is %s.\n")
+		call pargstr (Memc[image])
+	    call sfree (sp)
+	    return
+	}
+
+	# Return an error if the fringe flag is missing.
+	im = ccd_cache (Memc[image], FRINGE)
+	if (!ccdflag (im, "mkfringe"))
+	    call error (0, "MKFRINGE flag missing from fringe image.")
+
+	# Set the processing parameters in the CCD structure.
+	nc = IM_LEN(im,1)
+	nl = IM_LEN(im,2)
+	c1 = 1
+	c2 = nc
+	l1 = 1
+	l2 = nl
+	cs = 1
+	ls = 1
+	call hdmgstr (im, "datasec", Memc[str], SZ_FNAME)
+	call ccd_section (Memc[str], c1, c2, cs, l1, l2, ls)
+	if ((c1<1)||(c2>nc)||(l1<1)||(l2>nl)||(cs!=1)||(ls!=1)) {
+	    call sprintf (Memc[str], SZ_LINE,
+		"Data section error: image=%s[%d,%d], datasec=[%d:%d,%d:%d]")
+		call pargstr (Memc[image])
+		call pargi (nc)
+		call pargi (nl)
+		call pargi (c1)
+		call pargi (c2)
+		call pargi (l1)
+		call pargi (l2)
+	    call error (0, Memc[str])
+	}
+	data_c1 = c1
+	data_l1 = l1
+	call hdmgstr (im, "ccdsec", Memc[str], SZ_FNAME)
+	call ccd_section (Memc[str], c1, c2, cs, l1, l2, ls)
+	ccd_c1 = c1
+	ccd_l1 = l1
+	if ((c1 > CCD_C1(ccd)) || (c2 < CCD_C2(ccd)) ||
+	    (l1 > CCD_L1(ccd)) || (l2 < CCD_L2(ccd))) {
+	    call sprintf (Memc[str], SZ_LINE,
+	        "CCD section error: input=[%d:%d,%d:%d], %s=[%d:%d,%d:%d]")
+		call pargi (CCD_C1(ccd))
+		call pargi (CCD_C2(ccd))
+		call pargi (CCD_L1(ccd))
+		call pargi (CCD_L2(ccd))
+		call pargstr (Memc[image])
+		call pargi (c1)
+		call pargi (c2)
+		call pargi (l1)
+		call pargi (l2)
+	    call error (0, Memc[str])
+	}
+
+	FRINGE_IM(ccd) = im
+	FRINGE_C1(ccd) = CCD_C1(ccd) - ccd_c1 + data_c1
+	FRINGE_C2(ccd) = CCD_C2(ccd) - ccd_c1 + data_c1
+	FRINGE_L1(ccd) = CCD_L1(ccd) - ccd_l1 + data_l1
+	FRINGE_L2(ccd) = CCD_L2(ccd) - ccd_l1 + data_l1
+
+	# Get the scaling factors.  If no fringe scale factor assume 1.
+	exptime1 = hdmgetr (IN_IM(ccd), "exptime")
+	exptime2 = hdmgetr (im, "exptime")
+	iferr (fringescale = hdmgetr (im, "fringscl"))
+	    fringescale = 1.
+
+	FRINGESCALE(ccd) = exptime1 / exptime2 * fringescale
+	CORS(ccd, FRINGECOR) = Q
+	COR(ccd) = YES
+
+	# Log the operation.
+	call sprintf (Memc[str], SZ_LINE,
+	    "Fringe image is %s with scale=%g")
+	    call pargstr (Memc[image])
+	    call pargr (FRINGESCALE(ccd))
+	call timelog (Memc[str], SZ_LINE)
+	call ccdlog (IN_IM(ccd), Memc[str])
+	call hdmpstr (OUT_IM(ccd), "fringcor", Memc[str])
+
+	call sfree (sp)
+end