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оригинального документа
: http://xmm.vilspa.esa.es/sas/7.0.0/doc/rgssources/node30.html
Дата изменения: Thu Jun 29 00:31:24 2006 Дата индексирования: Sat Dec 22 12:35:56 2007 Кодировка: Поисковые слова: mars polar lander |
read parameters;
################# start format upgrade section.
if (filemode eq 'modify') {
# convert old-style source list if necessary:
if (! instrument_supplied) {
if (hasAttribute(set, 'INSTRUME')) {
instrument = stringAttribute(oldListSet, 'INSTRUME');
} else {
# attempt to get it from file name:
if (! instrument_in_filename) {call error;}
}
}
call CAL_setState(instrument=instrumentId);
rename table to 'SRCLIST';
get attitude from *_REF keywords;
write_generic_keywords;
if (writeobskwds) {write_observation_keywords;}
if (writeexpkwds) {
if (! exposure_supplied) {
if (hasAttribute(set, 'EXP_ID')) {
exposure = stringAttribute(oldListSet, 'EXP_ID');
} else {
# attempt to get it from file name:
if (! exposure_in_filename) {call error;}
}
}
}
# Convert columns:
n_offaxis_sources = 0;
foreach (source) {
fixed_on_sky = true; # default
process = false; # default
bkg_exclude = false; # default
if (old_label eq 'proposal') {
new_label = 'PROPOSAL';
new_ra = old_ra;
new_dec = old_dec;
} elsif (label eq 'onaxis') {
new_label = 'ON_AXIS';
new_ra = attitude_ra;
new_dec = attitude_dec;
delta_disp = 0;
delta_xdsp = 0;
new_fov_phi = 0;
new_fov_r = 0;
fixed_on_sky = false;
} elsif (label eq 'epic') {
new_label = 'OLDEPIC'.id_band.ml_id_src;
new_ra = old_ra;
new_dec = old_dec;
epic_file = number of bands found;
} elsif (label eq 'offaxis') {
n_offaxis_sources = n_offaxis_sources + 1;
new_label = 'OFFAXIS'.n_offaxis_sources;
delta_disp = rgs_disp;
delta_xdsp = rgs_xdsp;
calculate new_fov_phi, new_fov_r;
fixed_on_sky = false;
} else { # assume is user-added source.
new_label = upper_case(old_label);
new_ra = old_ra;
new_dec = old_dec;
}
new_rate = old_rate;
if (src_select > 0) {process = true;}
if (back_select > 0) {bkg_exclude = true;}
if (fixed_on_sky) {
calculate delta_disp;
calculate delta_xdsp;
calculate new_fov_phi;
calculate new_fov_r;
} else {
calculate new_ra;
calculate new_dec;
}
}
calculate_confusion(src_data, prime_index);
delete old columns;
write column data to new columns;
write epic keywords;
}
################# end format upgrade section.
# get the instrument:
if (filemode eq 'modify') {
instrument = stringAttribute(oldListSet, 'INSTRUME');
} else {
# get instrument from parameter;
if (instrument parameter at default value) {call error;}
}
# get the exposure number:
expid_is_valid = true;
if (filemode eq 'modify') {
exposure = int32Attribute(oldListSet, 'EXP_ID');
} else {
# get exposure from parameter;
if (exposure parameter at default value) {
expid_is_valid = false;
}
}
call CAL_setState(instrument=instrumentId);
# get the pointing:
if (filemode .eq. 'modify' && ! changeAttitude) {
# read attitude from old source list;
} elsif (attitudeStyle .eq. 'user') {
# read attitude from attra, attdec and attapos parameters;
} else {
if (!expid_is_valid) {call error;}
call OAL_setState(instrument=instrument, exposureNr=exposure);
if (attitudeStyle .eq. 'start') {
# get attitude from attitude at start of observation;
} elsif (attitudeStyle .eq. 'mean') {
# get attitude from mean of attitude history file values;
} elsif (attitudeStyle .eq. 'median') {
# get attitude from median of attitude history file values;
}
}
allocate(src_data(max_number_sources));
if (filemode eq 'create') {
proposal position -> src_data(1);
attitude position -> src_data(2);
} else { # filemode eq 'modify'
open(old rgs set, 'READ');
call check(old rgs list); # This checks that all label names are unique,
# and that there is a proposal and attitude source.
old rgs sources -> src_data;
release(old rgs set);
if (changeattitude) {attitude position -> src_data(index of onaxis src);}
}
if (withepicset) {
clone(old epic set);
if (enablefilter) {spatial filtering of cloned epic set;}
foreach(epic source) {
label = 'epiclabelprefix'.column('*_ID_SRC');
foreach(source already in src_data) {
if (label eq src_data(LABEL)) {
no_label_clash = F;
if (clobberonlabel) {
last;
} else {
call error;
}
}
}
if (no_label_clash) {
epic source -> src_data;
}
}
release(old epic set);
}
if (addusersource) {
foreach(source already in src_data) {
if (label eq src_data(LABEL)) {
no_label_clash = F;
if (clobberonlabel) {
last;
} else {
call error;
}
}
}
if (no_label_clash) {
user source -> src_data;
}
}
# Possible routine in this place that filters out (or at least identifies)
# all pairs of too-close sources.
if (changeattitude or null in column) {
foreach(source in src_data) {
# Calculate ra/dec or delta_disp/delta_xdsp/fov_phi/fov_r, as appropriate;
}
}
# Write the data to file:
if (filemode eq 'create') {
open(new rgs set, 'CREATE');
# write keywords to header:
write_generic_keywords;
if (writeobskwds) {write_observation_keywords;}
if (writeexpkwds && expid_is_valid) {write_exposure_keywords;}
} else { # filemode eq 'modify'
open(old rgs set, 'MODIFY');
if (changeattitude) {
rewrite attitude attributes (#RA_PNT etc);
delete all region extensions;
set PROCESS and BKG_EXCLUDE to false;
}
delete all table entries;
}
src_data -> new rgs set;
if (withepicset) {
write_epic_specific_keywords;
}
if (enablefilter) {check that all members of the src list are within the
fov, warn if not;}
# Now calculate prime source index value:
if (filemode eq 'modify' && !changeprime) {
prime_index = prime_index in old file;
} else {
if (addusersource && userasprime) {
prime_index = index of (last) user-added source;
} else {
if (primestyle eq 'label') {
prime_index = index of source with label=primesourcelabel;
} elsif(primestyle eq 'index') {
prime_index = primesourceindex;
} elsif(primestyle eq 'brightest') {
prime_index = index of brightest source;
} elsif(primestyle eq 'auto') {
if (proposal source is within FOV) {
prime_index = index of proposal source;
} elsif (there are some epic sources within FOV) {
prime_index = index of brightest within-FOV epic source;
} else {
prime_index = index of pointing (ONAXIS) source;
}
}
}
} else {
prime_index = previous prime_index;
}
if (filemode eq 'create' || changeprime) {
prime_index -> #PRIMESRC;
}
call calculate_confusion(src_data, prime_index);
# Write the confusion data to file:
# release the data set.