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include "sptime.h"
# These routines interface between any type of disperser and the
# disperser type specific routines (such as those for gratings).
# ST_DISPERSER -- Initialize disperser data.
procedure st_disperser (st, name, index)
pointer st #I SPECTIME pointer
char name[ARB] #I Table name
int index #I Grating index
int order, oref, stgeti(), tabgeti(), strdic()
real f, phi, g, blaze, wb, db, ref, stgetr(), tabgetr(), gr_getr()
pointer sp, str, fname, gr, gr_open()
bool streq()
errchk gr_open, tab_getr, gr_getr, st_gtable1
begin
call smark (sp)
call salloc (str, SZ_LINE, TY_CHAR)
call salloc (fname, SZ_LINE, TY_CHAR)
ST_GR(st,index) = NULL
ST_DISPTYPE(st,index) = 0
# Get disperser type.
if (streq (name, "disperser")) {
call stgstr (st, "disptype", "disperser", "", Memc[str], SZ_LINE)
if (Memc[str] == EOS) {
iferr (call tabgstr (ST_TAB(st), "disperser", "spectrograph",
"type", Memc[str], SZ_LINE))
call strcpy ("generic", Memc[str], SZ_LINE)
}
} else if (streq (name, "xdisperser")) {
call stgstr (st, "xdisptype", "xdisperser", "", Memc[str], SZ_LINE)
if (Memc[str] == EOS) {
iferr (call tabgstr (ST_TAB(st), "xdisperser", "spectrograph",
"type", Memc[str], SZ_LINE))
Memc[str] = EOS
}
} else
Memc[str] = EOS
ST_DISPTYPE(st,index) = strdic (Memc[str],Memc[str],SZ_LINE,DISPTYPES)
switch (ST_DISPTYPE(st,index)) {
case GRATING:
f = ST_CAMFL(st) * 1000
switch (index) {
case 1:
g = stgetr (st, "gmm", name, INDEFR)
blaze = stgetr (st, "blaze", name, INDEFR)
oref = stgeti (st, "oref", name, 1)
wb = stgetr (st, "wavelength", name, INDEFR)
db = stgetr (st, "dispersion", name, INDEFR)
ref = stgetr (st, "eff", name, INDEFR)
case 2:
g = stgetr (st, "xgmm", name, INDEFR)
blaze = stgetr (st, "xblaze", name, INDEFR)
oref = stgeti (st, "xoref", name, 1)
wb = stgetr (st, "xwavelength", name, INDEFR)
db = stgetr (st, "xdispersion", name, INDEFR)
ref = stgetr (st, "xeff", name, INDEFR)
# Check old names.
if (IS_INDEFR(g)) {
iferr (g = tabgetr (ST_TAB(st), name, "spectrograph",
"gmm"))
g = INDEFR
}
}
# Old names.
if (IS_INDEFR(g)) {
iferr (g = tabgetr (ST_TAB(st), name, "spectrograph",
"gmm"))
g = INDEFR
}
if (IS_INDEFR(blaze)) {
iferr (blaze = tabgetr (ST_TAB(st), name, "spectrograph",
"blaze"))
blaze = INDEFR
}
if (IS_INDEFI(oref)) {
iferr (oref = tabgeti (ST_TAB(st), name, "spectrograph",
"oref"))
oref = 1
}
if (IS_INDEFR(wb)) {
iferr (wb = tabgetr (ST_TAB(st), name, "spectrograph",
"wavelength"))
wb = INDEFR
}
if (IS_INDEFR(db)) {
iferr (db = tabgetr (ST_TAB(st), name, "spectrograph",
"dispersion"))
db = INDEFR
}
if (IS_INDEFR(ref)) {
iferr (ref = tabgetr (ST_TAB(st), name, "spectrograph",
"reflectance"))
ref = 1.
}
phi = ST_INOUTA(st,index)
# if (!IS_INDEFR(db))
# db = db / f
iferr (gr = gr_open (ST_CW(st), ST_ORDER(st,index), ref, wb, db,
oref, f, g, blaze, 1., phi, INDEF, INDEF, 1, YES)) {
g = 300.
blaze = 6
gr = gr_open (ST_CW(st), ST_ORDER(st,index), ref, wb, db,
oref, f, g, blaze, 1., phi, INDEF, INDEF, 1, YES)
}
ST_GR(st,index) = gr
if (IS_INDEF(ST_CW(st)))
ST_CW(st,index) = gr_getr (gr, "wavelength")
if (IS_INDEFI(ST_ORDER(st,index)))
ST_ORDER(st,index) = nint (gr_getr (gr, "order"))
ST_DISP(st,index) = gr_getr (gr, "dblaze") * oref * f
# Look for explicit blaze functions.
do order = ST_ORDER(st,index)-1, ST_ORDER(st,index)+1 {
call sprintf (Memc[str], SZ_LINE, "eff%d")
call pargi (order)
ifnoerr (call tabgstr (ST_TAB(st), name, "spectrograph",
Memc[str], Memc[fname], SZ_LINE)) {
if (streq (name, "disperser"))
call st_gtable1 (st, Memc[str], Memc[fname])
else if (streq (name, "xdisperser")) {
call sprintf (Memc[str], SZ_LINE, "xeff%d")
call pargi (order)
call st_gtable1 (st, Memc[str], Memc[fname])
}
}
}
case GRISM:
f = ST_CAMFL(st) * 1000
switch (index) {
case 1:
g = stgetr (st, "gmm", name, INDEFR)
blaze = stgetr (st, "blaze", name, INDEFR)
ref = stgetr (st, "eff", name, 1.)
db = stgetr (st, "indexref", name, INDEFR)
if (!IS_INDEFI(ST_ORDER(st,index)) && ST_ORDER(st,index)!=1) {
call sprintf (Memc[str], SZ_LINE, "index%d")
call pargi (ST_ORDER(st,index))
iferr (wb = tabgetr (ST_TAB(st), name, "spectrograph",
Memc[str]))
wb = db
db = wb
}
case 2:
g = stgetr (st, "xgmm", name, INDEFR)
blaze = stgetr (st, "xblaze", name, INDEFR)
ref = stgetr (st, "xeff", name, 1.)
db = stgetr (st, "xindexref", name, INDEFR)
if (!IS_INDEFI(ST_ORDER(st,index)) && ST_ORDER(st,index)!=1) {
call sprintf (Memc[str], SZ_LINE, "index%d")
call pargi (ST_ORDER(st,index))
iferr (wb = tabgetr (ST_TAB(st), name, "spectrograph",
Memc[str]))
wb = db
db = wb
}
}
# Old names.
if (IS_INDEFR(g)) {
iferr (g = tabgetr (ST_TAB(st), name, "spectrograph",
"gmm"))
g = INDEFR
}
if (IS_INDEFR(blaze)) {
iferr (blaze = tabgetr (ST_TAB(st), name, "spectrograph",
"prism"))
blaze = INDEFR
}
if (IS_INDEFR(ref)) {
iferr (ref = tabgetr (ST_TAB(st), name, "spectrograph",
"transmission"))
ref = 1
}
if (IS_INDEFR(db)) {
if (!IS_INDEFI(ST_ORDER(st,index))) {
call sprintf (Memc[str], SZ_LINE, "index%d")
call pargi (ST_ORDER(st,index))
iferr (db = tabgetr (ST_TAB(st), name, "spectrograph",
Memc[str]))
db = tabgetr (ST_TAB(st), name, "spectrograph",
"index1")
} else
db = tabgetr (ST_TAB(st), name, "spectrograph", "index1")
}
oref = 1
iferr (gr = gr_open (ST_CW(st), ST_ORDER(st,index), ref, INDEF,
INDEF, oref, f, g, blaze, db, 0., blaze, blaze, 1, YES)) {
g = 300.
blaze = 6.
gr = gr_open (ST_CW(st), ST_ORDER(st,index), ref, INDEF,
INDEF, oref, f, g, blaze, db, 0., blaze, blaze, 1, YES)
}
ST_GR(st,index) = gr
if (IS_INDEF(ST_CW(st)))
ST_CW(st,index) = gr_getr (gr, "wavelength")
if (IS_INDEFI(ST_ORDER(st,index)))
ST_ORDER(st,index) = nint (gr_getr (gr, "order"))
ST_DISP(st,index) = gr_getr (gr, "dblaze") * oref * f
# Look for explicit blaze functions.
do order = ST_ORDER(st,index)-1, ST_ORDER(st,index)+1 {
call sprintf (Memc[str], SZ_LINE, "eff%d")
call pargi (order)
ifnoerr (call tabgstr (ST_TAB(st), name, "spectrograph",
Memc[str], Memc[fname], SZ_LINE)) {
if (streq (name, "disperser"))
call st_gtable1 (st, Memc[str], Memc[fname])
else if (streq (name, "xdisperser")) {
call sprintf (Memc[str], SZ_LINE, "xeff%d")
call pargi (order)
call st_gtable1 (st, Memc[str], Memc[fname])
}
}
}
case GENERIC:
f = ST_CAMFL(st) * 1000
g = INDEFR
blaze = INDEFR
oref = 1
switch (index) {
case 1:
g = INDEFR
blaze = INDEFR
oref = 1
wb = stgetr (st, "wavelength", name, INDEFR)
db = stgetr (st, "dispersion", name, INDEFR)
ref = stgetr (st, "eff", name, INDEFR)
case 2:
g = INDEFR
blaze = INDEFR
oref = 1
wb = stgetr (st, "xwavelength", name, INDEFR)
db = stgetr (st, "xdispersion", name, INDEFR)
ref = stgetr (st, "xeff", name, INDEFR)
}
if (IS_INDEFR(wb)) {
iferr (wb = tabgetr (ST_TAB(st), name, "spectrograph",
"wavelength"))
wb = INDEFR
}
if (IS_INDEFR(db)) {
iferr (db = tabgetr (ST_TAB(st), name, "spectrograph",
"dispersion"))
db = INDEFR
}
if (IS_INDEFR(ref)) {
iferr (ref = tabgetr (ST_TAB(st), name, "spectrograph",
"reflectance"))
ref = 1.
}
phi = ST_INOUTA(st,index)
gr = gr_open (ST_CW(st), ST_ORDER(st,index), ref, wb, db,
oref, f, g, blaze, 1., phi, INDEF, INDEF, 1, NO)
ST_GR(st,index) = gr
if (IS_INDEF(ST_CW(st)))
ST_CW(st,index) = gr_getr (gr, "wavelength")
if (IS_INDEFI(ST_ORDER(st,index)))
ST_ORDER(st,index) = nint (gr_getr (gr, "order"))
ST_DISP(st,index) = gr_getr (gr, "dblaze") * oref * f
# Look for explicit blaze functions.
do order = ST_ORDER(st,index)-1, ST_ORDER(st,index)+1 {
call sprintf (Memc[str], SZ_LINE, "eff%d")
call pargi (order)
ifnoerr (call tabgstr (ST_TAB(st), name, "spectrograph",
Memc[str], Memc[fname], SZ_LINE)) {
if (streq (name, "disperser"))
call st_gtable1 (st, Memc[str], Memc[fname])
else if (streq (name, "xdisperser")) {
call sprintf (Memc[str], SZ_LINE, "xeff%d")
call pargi (order)
call st_gtable1 (st, Memc[str], Memc[fname])
}
}
}
}
call sfree (sp)
end
# ST_DISPEFF -- Return disperser efficiency.
real procedure st_dispeff (st, name, wave, order)
pointer st #I SPECTIME pointer
char name[ARB] #I Table name
real wave #I Wavelength
int order #I Order
real eff #O Efficiency
real w
pointer sp, tab, str
int tabgeti()
real tabinterp1(), tabgetr(), gr_eff()
bool tabexists(), streq()
errchk tabinterp1, gr_eff
begin
tab = ST_TAB(st)
eff = INDEF
if (streq (name, "disperser") && ST_DISPTYPE(st,1) == 0)
return (eff)
if (streq (name, "xdisperser") && ST_DISPTYPE(st,2) == 0)
return (eff)
call smark (sp)
call salloc (str, SZ_FNAME, TY_CHAR)
if (streq (name, "disperser")) {
call sprintf (Memc[str], SZ_FNAME, "eff%d")
call pargi (order)
if (!tabexists (tab, Memc[str])) {
if (order == 1 && tabexists (tab, name)) {
if (tabgeti (tab, name, "", "table.ndim") != 0)
call strcpy (name, Memc[str], SZ_FNAME)
}
}
if (tabexists (tab, Memc[str])) {
eff = tabinterp1 (tab, Memc[str], wave)
w = max (tabgetr (tab, Memc[str], "", "table.xmin"), wave)
w = min (tabgetr (tab, Memc[str], "", "table.xmax"), w)
if (w != wave) {
eff = tabinterp1 (tab, Memc[str], w) /
gr_eff (ST_GR(st,1), w, order)
eff = eff * gr_eff (ST_GR(st,1), wave, order)
}
} else
eff = gr_eff (ST_GR(st,1), wave, order)
} else if (streq (name, "xdisperser")) {
call sprintf (Memc[str], SZ_FNAME, "xeff%d")
call pargi (order)
if (!tabexists (tab, Memc[str])) {
if (order == 1 && tabexists (tab, name)) {
if (tabgeti (tab, name, "", "table.ndim") != 0)
call strcpy (name, Memc[str], SZ_FNAME)
}
}
if (tabexists (tab, Memc[str])) {
eff = tabinterp1 (tab, Memc[str], wave)
w = max (tabgetr (tab, Memc[str], "", "table.xmin"), wave)
w = min (tabgetr (tab, Memc[str], "", "table.xmax"), w)
if (w != wave) {
eff = tabinterp1 (tab, Memc[str], w) /
gr_eff (ST_GR(st,2), w, order)
eff = eff * gr_eff (ST_GR(st,2), wave, order)
}
} else
eff = gr_eff (ST_GR(st,2), wave, order)
}
if (IS_INDEF(eff))
eff = 0.
call sfree (sp)
return (eff)
end
# ST_X2W -- Return wavelength at given position on detector.
real procedure st_x2w (st, index, x)
pointer st #I SPECTIME pointer
int index #I Grating index
real x #I Detector position (mm from center)
real w #O Wavelength (Angstroms)
real gr_x2w()
begin
switch (ST_DISPTYPE(st,index)) {
case GRATING:
w = gr_x2w (ST_GR(st,index), x, ST_ORDER(st,index))
case GRISM:
w = gr_x2w (ST_GR(st,index), x, ST_ORDER(st,index))
case GENERIC:
w = gr_x2w (ST_GR(st,index), x, ST_ORDER(st,index))
}
return (w)
end
# ST_W2X -- Return wavelength at given position on detector.
real procedure st_w2x (st, index, w)
pointer st #I SPECTIME pointer
int index #I Grating index
real w #I Wavelength (Angstroms)
real x #O Detector position (mm from center)
real gr_w2x()
begin
switch (ST_DISPTYPE(st,index)) {
case GRATING:
x = gr_w2x (ST_GR(st,index), w, ST_ORDER(st,index))
case GRISM:
x = gr_w2x (ST_GR(st,index), w, ST_ORDER(st,index))
case GENERIC:
x = gr_w2x (ST_GR(st,index), w, ST_ORDER(st,index))
}
return (x)
end
# ST_W2DW -- Return dispersion on detector at given wavelength.
real procedure st_w2dw (st, index, w)
pointer st #I SPECTIME pointer
int index #I Grating index
real w #I Wavelength (Angstroms)
real d #I Dispersion (Angstroms/mm)
real gr_w2dw()
begin
switch (ST_DISPTYPE(st,index)) {
case GRATING:
d = gr_w2dw (ST_GR(st,index), w, ST_ORDER(st,index))
case GRISM:
d = gr_w2dw (ST_GR(st,index), w, ST_ORDER(st,index))
case GENERIC:
d = gr_w2dw (ST_GR(st,index), w, ST_ORDER(st,index))
}
return (d)
end
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