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include <mach.h>
include <imhdr.h>
include "../lib/daophotdef.h"
include "../lib/psfdef.h"
# DP_ADDSTAR -- Add the star at the given position to the PSF if it exists and
# passes the selection criteria.
int procedure dp_addstar (dao, im, x, y, mag, idnum, gd, mgd, showplots)
pointer dao # pointer to daophot structure
pointer im # pointer to image
real x, y # position of proposed PSF star
real mag # mag of proposed PSF star
int idnum # id number of desired star
pointer gd # pointer to the graphics stream
pointer mgd # pointer to the metacode descriptor
bool showplots # show plots?
real tx, ty, logood, higood
pointer srim
int x1, x2, y1, y2, starnum, saturated
bool star_ok
real dp_statr(), dp_pstatr()
pointer dp_psubrast()
int dp_locstar(), dp_idstar(), dp_stati(), dp_pstati()
begin
# Convert coordinates for display.
if (showplots)
call dp_ltov (im, x, y, tx, ty, 1)
else
call dp_wout (dao, im, x, y, tx, ty, 1)
# Check that the position of the star is within the image.
if (idnum == 0 && (x < 1.0 || x > real (IM_LEN(im,1)) || y < 1.0 || y >
real (IM_LEN(im,2)))) {
if (DP_VERBOSE(dao) == YES) {
call printf ("Star at %g,%g is outside the image\n")
call pargr (tx)
call pargr (ty)
}
return (ERR)
}
# Find the star in the aperture photometry list
if (idnum == 0)
starnum = dp_locstar (dao, im, x, y)
else
starnum = dp_idstar (dao, im, idnum)
if (starnum == 0) {
if (DP_VERBOSE(dao) == YES) {
if (idnum > 0) {
call printf ("Star %d not found in the photometry file\n")
call pargi (idnum)
} else {
call printf (
"Star at %g,%g not found in the photometry file\n")
call pargr (tx)
call pargr (ty)
}
}
return (ERR)
} else if (starnum < 0) {
if (DP_VERBOSE(dao) == YES) {
call printf (
"Star %d is too near the edge of the image\n")
call pargi (dp_pstati (dao, CUR_PSFID))
}
return (ERR)
} else if (starnum <= dp_pstati (dao, PNUM)) {
if (DP_VERBOSE(dao) == YES) {
call printf ("Star %d is already a PSF star\n")
call pargi (dp_pstati (dao, CUR_PSFID))
}
return (ERR)
}
# Check for INDEF valued sky.
if (IS_INDEFR (dp_pstatr (dao, CUR_PSFSKY))) {
if (DP_VERBOSE(dao) == YES) {
call printf ("Star %d has an undefined sky value\n")
call pargi (dp_pstati (dao, CUR_PSFID))
}
return (ERR)
}
logood = dp_statr (dao, MINGDATA)
if (IS_INDEFR(logood))
logood = -MAX_REAL
higood = dp_statr (dao, MAXGDATA)
if (IS_INDEFR(higood))
higood = MAX_REAL
# Get the data subraster, check for saturation and bad pixels,
# and compute the min and max data values inside the subraster.
srim = dp_psubrast (dao, im, logood, higood, x1, x2, y1, y2, saturated)
if (srim == NULL) {
if (DP_VERBOSE(dao) == YES) {
call printf (
"Star %d has low bad pixels inside fitrad\n")
call pargi (dp_pstati (dao, CUR_PSFID))
}
return (ERR)
}
# Check for saturation.
if (saturated == YES && dp_stati (dao, SATURATED) == NO) {
if (DP_VERBOSE(dao) == YES) {
call printf (
"Star %d has high bad pixels inside fitrad\n")
call pargi (dp_pstati (dao, CUR_PSFID))
}
call mfree (srim, TY_REAL)
return (ERR)
}
# Now let's look at the extracted subraster.
if (showplots) {
call dp_showpsf (dao, im, Memr[srim], (x2 - x1 + 1), (y2 - y1 + 1),
x1, y1, gd, star_ok)
} else if (saturated == YES) {
if (DP_VERBOSE(dao) == YES) {
call printf (
"Warning: Star %d contains high bad pixels inside fitrad\n")
call pargi (dp_pstati (dao, CUR_PSFID))
}
star_ok = true
} else if (dp_pstatr (dao, CUR_PSFMIN) < logood || dp_pstatr (dao,
CUR_PSFMAX) > higood) {
if (DP_VERBOSE(dao) == YES) {
call printf (
"Warning: Star %d contains bad pixels outside fitrad\n")
call pargi (dp_pstati (dao, CUR_PSFID))
}
star_ok = true
} else
star_ok = true
# The star is rejected by the user.
if (! star_ok) {
if (DP_VERBOSE(dao) == YES) {
call printf ("Star %d rejected by user\n")
call pargi (dp_pstati (dao, CUR_PSFID))
}
call mfree (srim, TY_REAL)
return (ERR)
}
# Save the plot in the metacode file.
if (mgd != NULL)
call dp_plotpsf (dao, im, Memr[srim], (x2 - x1 + 1), (y2 - y1 + 1),
x1, y1, mgd)
# Add the star to the PSF star list by swapping its position with the
# position of the star currently in PNUM + 1.
call dp_aplswap (dao, dp_pstati (dao, CUR_PSF), dp_pstati (dao,
PNUM) + 1)
# Increment the number of psf stars.
call dp_pseti (dao, PNUM, dp_pstati (dao, PNUM) + 1)
# Reallocate the fitting array space.
call dp_lmempsf (dao)
# Enter the new initial values.
call dp_xyhpsf (dao, dp_pstati (dao, PNUM), mag, saturated)
# Print message.
if (DP_VERBOSE(dao) == YES) {
call printf ("Star %d has been added to the PSF star list\n")
call pargi (dp_pstati (dao, CUR_PSFID))
call dp_ltov (im, dp_pstatr (dao, CUR_PSFX),
dp_pstatr(dao, CUR_PSFY), tx, ty, 1)
call printf (
"\tX: %7.2f Y: %7.2f Mag: %7.3f Dmin: %g Dmax: %g\n")
call pargr (tx)
call pargr (ty)
call pargr (dp_pstatr (dao, CUR_PSFMAG))
call pargr (dp_pstatr (dao, CUR_PSFMIN))
call pargr (dp_pstatr (dao, CUR_PSFMAX))
}
call mfree (srim, TY_REAL)
return (OK)
end
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