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include <mach.h>
include <smw.h>
include "icombine.h"
# IC_COMBINE -- Combine images.
procedure ic_combiner (sh, shout, d, id, n, m, lflag, scales, zeros, wts,
nimages, npts)
pointer sh[nimages] # Input spectra
pointer shout # Output spectrum
pointer d[nimages] # Data pointers
pointer id[nimages] # Image index ID pointers
int n[npts] # Number of good pixels
pointer m[nimages] # Mask pointers
int lflag[nimages] # Line flags
real scales[nimages] # Scale factors
real zeros[nimages] # Zero offset factors
real wts[nimages] # Combining weights
int nimages # Number of input images
int npts # Number of points per output line
int i, ctor()
real r
pointer sp, nm
errchk ic_scale
include "icombine.com"
begin
call smark (sp)
# Rebin spectra and set mask arrays
call scb_rebin (sh, shout, lflag, nimages, npts)
# Set scale and weights and log
call ic_scale (sh, shout, lflag, scales, zeros, wts, nimages)
# Set combine parameters
switch (combine) {
case AVERAGE:
if (dowts)
keepids = true
else
keepids = false
case MEDIAN:
dowts = false
keepids = false
case SUM:
keepids = false
reject = NONE
grow = 0
}
docombine = true
# Set rejection algorithm specific parameters
switch (reject) {
case CCDCLIP, CRREJECT:
call salloc (nm, 3*nimages, TY_REAL)
i = 1
if (ctor (Memc[rdnoise], i, r) > 0) {
do i = 1, nimages
Memr[nm+3*(i-1)] = r
} else {
do i = 1, nimages
Memr[nm+3*(i-1)] = RA(sh[i])
}
i = 1
if (ctor (Memc[gain], i, r) > 0) {
do i = 1, nimages {
Memr[nm+3*(i-1)+1] = r
Memr[nm+3*(i-1)] = (Memr[nm+3*(i-1)] / r) ** 2
}
} else {
do i = 1, nimages {
r = DEC(sh[i])
Memr[nm+3*(i-1)+1] = r
Memr[nm+3*(i-1)] = (Memr[nm+3*(i-1)] / r) ** 2
}
}
i = 1
if (ctor (Memc[snoise], i, r) > 0) {
do i = 1, nimages
Memr[nm+3*(i-1)+2] = r
} else {
do i = 1, nimages {
r = UT(sh[i])
Memr[nm+3*(i-1)+2] = r
}
}
if (!keepids) {
if (doscale1 || grow > 0)
keepids = true
else {
do i = 2, nimages {
if (Memr[nm+3*(i-1)] != Memr[nm] ||
Memr[nm+3*(i-1)+1] != Memr[nm+1] ||
Memr[nm+3*(i-1)+2] != Memr[nm+2]) {
keepids = true
break
}
}
}
}
if (reject == CRREJECT)
lsigma = MAX_REAL
case MINMAX:
mclip = false
if (grow > 0)
keepids = true
case PCLIP:
mclip = true
if (grow > 0)
keepids = true
case AVSIGCLIP, SIGCLIP:
if (doscale1 || grow > 0)
keepids = true
case NONE:
mclip = false
grow = 0
}
if (keepids) {
do i = 1, nimages
call salloc (id[i], npts, TY_INT)
}
call ic_gdatar (sh, d, id, n, m, lflag, scales, zeros, nimages, npts)
switch (reject) {
case CCDCLIP, CRREJECT:
if (mclip)
call ic_mccdclipr (d, id, n, scales, zeros, Memr[nm],
nimages, npts, Memr[SY(shout)])
else
call ic_accdclipr (d, id, n, scales, zeros, Memr[nm],
nimages, npts, Memr[SY(shout)])
case MINMAX:
call ic_mmr (d, id, n, npts)
case PCLIP:
call ic_pclipr (d, id, n, nimages, npts, Memr[SY(shout)])
case SIGCLIP:
if (mclip)
call ic_msigclipr (d, id, n, scales, zeros, nimages, npts,
Memr[SY(shout)])
else
call ic_asigclipr (d, id, n, scales, zeros, nimages, npts,
Memr[SY(shout)])
case AVSIGCLIP:
if (mclip)
call ic_mavsigclipr (d, id, n, scales, zeros, nimages,
npts, Memr[SY(shout)])
else
call ic_aavsigclipr (d, id, n, scales, zeros, nimages,
npts, Memr[SY(shout)])
}
if (grow > 0)
call ic_growr (d, id, n, nimages, npts, Memr[SY(shout)])
if (docombine) {
switch (combine) {
case AVERAGE:
call ic_averager (d, id, n, wts, npts, Memr[SY(shout)])
case MEDIAN:
call ic_medianr (d, n, npts, Memr[SY(shout)])
case SUM:
call ic_sumr (d, n, npts, Memr[SY(shout)])
}
}
call sfree (sp)
end
|
