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include <imhdr.h>
include "quadgeom.h"
# QUADGEOMRED -- Set up section information in quadgeom structure based on
# information in the image header for a reduced image. The sections given in the
# image header are "whole image" sections (i.e. those that would be appropriate
# for single readout. From these we must calculate the sections to apply to
# the data read through each readout.
procedure quadgeomred (im, qg)
pointer im #I Pointer to input image.
pointer qg #IO Pointer to open quadgeom structure.
char section[SZ_LINE], keyword[SZ_LINE], nampsyx[SZ_LINE]
int nx, ny, x, y, amp, pre
int dx1, dx2, dxs, dy1, dy2, dys
int cx1, cx2, cxs, cy1, cy2, cys
int ax1, ax2, axs, ay1, ay2, ays
begin
# Get input image dimensions.
nx = IM_LEN(im, 1)
ny = IM_LEN(im, 2)
QG_NX (qg, 0) = nx
QG_NY (qg, 0) = ny
# Get number of active amplifiers in Y and X.
call hdmgstr (im, "nampsyx", nampsyx, SZ_LINE)
call sscan (nampsyx)
call gargi (QG_NAMPSY(qg))
call gargi (QG_NAMPSX(qg))
QG_NAMPS(qg) = QG_NAMPSY(qg) * QG_NAMPSX(qg)
if (QG_NAMPS(qg) > QG_MAXAMPS)
call error (0, "CCD has two many read-outs for this program")
# Get list of active amplifiers.
# Presently the header doesn't contain this information so we fake it
# since we know all the posibilities.
do amp = 1, QG_NAMPS(qg)
call malloc (QG_AMPID(qg, amp), SZ_AMPID, TY_CHAR)
switch (QG_NAMPSX(qg)) {
case 1:
switch (QG_NAMPSY(qg)) {
case 1: # Mono
QG_AMPTYPE (qg, 1) = AMP11
call strcpy ("11", Memc[QG_AMPID(qg, 1)], SZ_AMPID)
case 2: # Split parallels
call error (0, "Unsuported read-out configuration")
}
case 2:
switch (QG_NAMPSY(qg)) {
case 1: # Split serials
QG_AMPTYPE (qg, 1) = AMP11
call strcpy ("11", Memc[QG_AMPID(qg, 1)], SZ_AMPID)
QG_AMPTYPE (qg, 2) = AMP12
call strcpy ("12", Memc[QG_AMPID(qg, 2)], SZ_AMPID)
case 2: # Quad
QG_AMPTYPE (qg, 1) = AMP11
call strcpy ("11", Memc[QG_AMPID(qg, 1)], SZ_AMPID)
QG_AMPTYPE (qg, 2) = AMP12
call strcpy ("12", Memc[QG_AMPID(qg, 2)], SZ_AMPID)
QG_AMPTYPE (qg, 3) = AMP21
call strcpy ("21", Memc[QG_AMPID(qg, 3)], SZ_AMPID)
QG_AMPTYPE (qg, 4) = AMP22
call strcpy ("22", Memc[QG_AMPID(qg, 4)], SZ_AMPID)
}
}
# Get datasec.
call hdmgstr (im, "datasec", section, SZ_LINE)
dx1 = 1
dx2 = nx
dxs = 1
dy1 = 1
dy2 = ny
dys = 1
call ccd_section (section, dx1, dx2, dxs, dy1, dy2, dys)
QG_DX1(qg, 0) = dx1
QG_DX2(qg, 0) = dx2
QG_DY1(qg, 0) = dy1
QG_DY2(qg, 0) = dy2
# Get ccdsec.
call hdmgstr (im, "ccdsec", section, SZ_LINE)
cx1 = dx1
cx2 = dx2
cxs = 1
cy1 = dy1
cy2 = dy2
cys = 1
call ccd_section (section, cx1, cx2, cxs, cy1, cy2, cys)
QG_CX1(qg, 0) = cx1
QG_CX2(qg, 0) = cx2
QG_CY1(qg, 0) = cy1
QG_CY2(qg, 0) = cy2
do amp = 1, QG_NAMPS (qg) {
# Get AMPSECmn for each readout
call sprintf (keyword, SZ_LINE, "AMPSEC%s")
call pargstr (Memc[QG_AMPID(qg, amp)])
call hdmgstr (im, keyword, section, SZ_LINE)
ax1 = 1
ax2 = nx
axs = 1
ay1 = 1
ay2 = ny
ays = 1
call ccd_section (section, ax1, ax2, axs, ay1, ay2, ays)
QG_AX1(qg, amp) = ax1
QG_AX2(qg, amp) = ax2
QG_AY1(qg, amp) = ay1
QG_AY2(qg, amp) = ay2
# Set X and Y dimensions of subimage read out by each amplifier
QG_NX(qg, amp) = ax2 - ax1 + 1
QG_NY(qg, amp) = ay2 - ay1 + 1
# Set datsec and trimsec for each sub image
QG_DX1(qg, amp) = 1
QG_DX2(qg, amp) = QG_NX(qg, amp)
QG_DY1(qg, amp) = 1
QG_DY2(qg, amp) = QG_NY(qg, amp)
QG_TX1(qg, amp) = 1
QG_TX2(qg, amp) = QG_NX(qg, amp)
QG_TY1(qg, amp) = 1
QG_TY2(qg, amp) = QG_NY(qg, amp)
}
# Determine ccdsec for each each sub-image.
do y = 1, QG_NAMPSY(qg) {
amp = QG_AMP (qg, 1, y)
QG_CX1(qg, amp) = QG_CX1(qg, 0)
QG_CX2(qg, amp) = QG_CX1(qg, amp) + QG_NX(qg, amp) - 1
do x = 2, QG_NAMPSX(qg) {
amp = QG_AMP (qg, x, y)
pre = QG_AMP (qg, x-1, y)
QG_CX1(qg, amp) = QG_CX2(qg, pre) + 1
QG_CX2(qg, amp) = QG_CX1(qg, amp) + QG_NX(qg, amp) - 1
}
}
do x = 1, QG_NAMPSX(qg) {
amp = QG_AMP (qg, x, 1)
QG_CY1(qg, amp) = QG_CY1(qg, 0)
QG_CY2(qg, amp) = QG_CY1(qg, amp) + QG_NY(qg, amp) - 1
do y = 2, QG_NAMPSY(qg) {
amp = QG_AMP (qg, x, y)
pre = QG_AMP (qg, x, y-1)
QG_CY1(qg, amp) = QG_CY2(qg, pre) + 1
QG_CY2(qg, amp) = QG_CY1(qg, amp) + QG_NY(qg, amp) - 1
}
}
end
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