package Subs::UvotImages;
##############################################################################
#
# DESCRIPTION: Extract transform and plot images
#
# HISTORY:
# HISTORY: $Log: UvotImages.pm,v $
# HISTORY: Revision 1.71 2007/02/08 21:34:51 apsop
# HISTORY: Write ATTFLAG keyword to all extensions of corrected file.
# HISTORY:
# HISTORY: Revision 1.70 2007/02/02 17:19:11 apsop
# HISTORY: Change parameters for uvotdetect.
# HISTORY:
# HISTORY: Revision 1.69 2007/02/01 15:06:44 apsop
# HISTORY: Run uvotattcorr to produce corrected attitude file. Changes to the look of the uvot image plots.
# HISTORY:
# HISTORY: Revision 1.68 2006/08/21 23:06:12 apsop
# HISTORY: Removed the code for figuring out which HDUs to exclude from the summed
# HISTORY: images. As of Build 18 the HDUs without aspect corrections are excluded
# HISTORY: by default (and a bug was preventing passing the list from working).
# HISTORY:
# HISTORY: Revision 1.67 2006/07/28 13:17:18 apsop
# HISTORY: Don;t do any processing on BLOCKED images or if event files.
# HISTORY:
# HISTORY: Revision 1.66 2006/07/03 01:47:20 apsop
# HISTORY: Fix bug in construction of gif plot titles.
# HISTORY:
# HISTORY: Revision 1.65 2006/06/28 19:09:41 apsop
# HISTORY: Aesthetic changes for image gif files: no smoothing, black body color,
# HISTORY: better titles.
# HISTORY:
# HISTORY: Revision 1.64 2006/05/10 15:18:29 apsop
# HISTORY: Change filename for aspect correction output to new housekeeping file.
# HISTORY:
# HISTORY: Revision 1.63 2006/05/06 21:12:49 apsop
# HISTORY: Put show command in ximage to track version. *_PNT keywords gotten from
# HISTORY: ra,dec,roll parameters instead of burst_* parameters.
# HISTORY:
# HISTORY: Revision 1.62 2006/04/26 20:48:12 apsop
# HISTORY: Replace partition parameter with catspec parameter.
# HISTORY:
# HISTORY: Revision 1.61 2006/03/13 17:45:59 apsop
# HISTORY: Make error message about no data more explicit.
# HISTORY:
# HISTORY: Revision 1.60 2005/12/22 18:05:09 apsop
# HISTORY: Add * for index number in Filename::get method, so that all unfiltered event and
# HISTORY: raw image files are picked up.
# HISTORY:
# HISTORY: Revision 1.59 2005/12/16 19:27:44 apsop
# HISTORY: Pass attitude to swiftxform when creating grism DET images to get
# HISTORY: alternate SKY WCS keys.
# HISTORY:
# HISTORY: Revision 1.58 2005/12/15 22:37:54 apsop
# HISTORY: Pass the expmap flag to uvotimsum to indicate whether or not exposure
# HISTORY: maps are being summed.
# HISTORY:
# HISTORY: Revision 1.57 2005/11/15 13:52:17 apsop
# HISTORY: Fix inexplicablly uncaught bug in in mispelling of unlink.
# HISTORY:
# HISTORY: Revision 1.56 2005/11/09 20:13:56 apsop
# HISTORY: Get star catalogue location from sw0.par parameter starcatalog.
# HISTORY:
# HISTORY: Revision 1.55 2005/11/09 16:30:45 apsop
# HISTORY: don;t try and do any image processing if there are no image or event files.
# HISTORY:
# HISTORY: Revision 1.54 2005/11/08 20:00:18 apsop
# HISTORY: <Previous comment bogus>Clean up temporary input list files.
# HISTORY:
# HISTORY: Revision 1.53 2005/11/08 19:22:28 apsop
# HISTORY: Populate the TIMELIST and DATALIST hashes. Used to be an SWCheckInput.
# HISTORY:
# HISTORY: Revision 1.52 2005/11/03 21:33:01 apsop
# HISTORY: Modified a few parameters to work reasonably with Swift Build 16.
# HISTORY:
# HISTORY: Revision 1.51 2005/11/02 16:34:20 apsop
# HISTORY: Use uvotimage to create Level 1 and 2 images. Use uvotskycorr to find
# HISTORY: aspect corrections. Only include aspect corrected images in sums.
# HISTORY:
# HISTORY: Revision 1.50 2005/08/30 14:13:47 apsop
# HISTORY: Copy date keywords from sky image prime header to exposure map.
# HISTORY:
# HISTORY: Revision 1.49 2005/06/01 13:55:27 apsop
# HISTORY: Test for presence of event file before trying to use it.
# HISTORY:
# HISTORY: Revision 1.48 2005/04/29 15:47:24 apsop
# HISTORY: Disable calling of uvotmodmap.
# HISTORY:
# HISTORY: Revision 1.47 2005/04/06 15:43:42 apsop
# HISTORY: Change to using CALDB for cal parameters.
# HISTORY:
# HISTORY: Revision 1.46 2005/03/16 13:31:37 apsop
# HISTORY: Add in FILTER keyword to image primary header.
# HISTORY:
# HISTORY: Revision 1.45 2005/03/15 18:58:39 apsop
# HISTORY: Put basic and DATE* keywords into image file primary headers. Fix bug (?)
# HISTORY: which was not using modmap output for processing.
# HISTORY:
# HISTORY: Revision 1.44 2005/02/08 18:21:32 apsop
# HISTORY: Add new types for uvot filter specific images and exp maps. Replace
# HISTORY: Filename::corresponding method with file name hack for now. Fix bug which was
# HISTORY: preventing the production of raw images.
# HISTORY:
# HISTORY: Revision 1.43 2005/01/21 04:26:43 apsop
# HISTORY: Change to use file names stored in cat file rather than contructing them.
# HISTORY:
# HISTORY: Revision 1.42 2005/01/12 17:29:23 apsop
# HISTORY: Change weightfile param in uvotdetect to expfile param.
# HISTORY:
# HISTORY: Revision 1.41 2005/01/08 04:11:00 apsop
# HISTORY: Change test for existence of event list to be more forgiving.
# HISTORY:
# HISTORY: Revision 1.40 2005/01/07 20:34:21 apsop
# HISTORY: No longer necessary to use the CENTER method of swiftxform or a small
# HISTORY: value of ncell for uvotmodmap.
# HISTORY:
# HISTORY: Revision 1.39 2004/12/03 13:38:11 apsop
# HISTORY: Turn back on calling uvotmodmap.
# HISTORY:
# HISTORY: Revision 1.38 2004/10/13 01:38:31 apsop
# HISTORY: Disable uvotmodmap for the time being, and fix bug in getting plot file names.
# HISTORY:
# HISTORY: Revision 1.37 2004/10/12 16:26:36 apsop
# HISTORY: Filename changes and a few other tweaks to make module run in complete pipeline.
# HISTORY:
# HISTORY: Revision 1.36 2004/09/15 22:26:24 apsop
# HISTORY: Remove the binning factor from uvot event list file names
# HISTORY:
# HISTORY: Revision 1.35 2004/09/01 14:42:21 apsop
# HISTORY: Disable level 2/3 processing for now.
# HISTORY:
# HISTORY: Revision 1.34 2004/08/31 20:51:02 apsop
# HISTORY: Implemented UVOT level 2 and 3 products.
# HISTORY:
# HISTORY: Revision 1.33 2004/08/18 17:27:58 apsop
# HISTORY: Yet another fix for the timing keywords.
# HISTORY:
# HISTORY: Revision 1.32 2004/07/19 16:03:24 apsop
# HISTORY: Add version number entry to comment field.
# HISTORY:
# HISTORY: Revision 1.31 2004/07/12 13:46:09 apsop
# HISTORY: Fix problems with timing keywords
# HISTORY:
# HISTORY: Revision 1.30 2004/06/15 16:01:04 apsop
# HISTORY: Better trapping of problem uvot exposures.
# HISTORY:
# HISTORY: Revision 1.29 2004/06/02 16:11:19 apsop
# HISTORY: Change name of catalogue extension.
# HISTORY:
# HISTORY: Revision 1.28 2004/05/04 16:33:01 dah
# HISTORY: Bug fixes for case where no initial image file exists.
# HISTORY:
# HISTORY: Revision 1.27 2004/04/30 16:16:40 dah
# HISTORY: Use new FITSfile::keywords() method to speed up image extraction
# HISTORY:
# HISTORY: Revision 1.26 2004/04/16 20:21:18 dah
# HISTORY: Begin using embedded history records
# HISTORY:
# HISTORY: Revision 1.25 2004/04/16 19:53:18 dah
# HISTORY: Begin using embedded history records
# HISTORY:
#
# VERSION: 0.0
#
##############################################################################
use Subs::Sub;
use Subs::Images;
use Util::Xanadu;
use Subs::UvotNames;
@ISA = ("Subs::Images");
use strict;
sub new {
my $proto=shift;
my $self=$proto->SUPER::new();
$self->{DESCRIPTION}="Extracting, merging and plotting images for UVOT";
return $self;
}
##################
# METHODS:
##################
sub body {
my $self=shift;
$self->create_images();
$self->image_raw_to_det();
$self->aspect_correct_sky_images();
$self->create_exposure_maps();
# create summed images/exposure maps
$self->sum_images();
# detect sources and determine magnitudes
$self->detect_sources();
$self->plot_images();
} # end of body method
#############################################################################
# Extract images from filtered event data and raw images files
#############################################################################
sub create_images
{
my $self = shift;
my $log =$self->log();
my $filename=$self->filename();
my $procpar =$self->procpar();
my $jobpar =$self->jobpar();
$log->entry('Creating images from UVOT event and image mode data');
my $attfile = $filename->get('attitude', 's');
if (not $attfile) {
$log->error(2, 'not attitude file available');
return;
}
my @eventFiles = $filename->get('unfiltered', 'uvot', '*', '*');
@eventFiles = grep !/[0-9]ubl/, @eventFiles;
my @imageFiles = $filename->get('rawimage', 'uvot', '*', '*');
@imageFiles = grep !/[0-9]ubl/, @imageFiles;
unless( @eventFiles || @imageFiles ){
$log->error(1, 'No UVOT image or event files to process.');
return;
}
my $infile = 'uvotimage.files';
my $fh = FileHandle->new($infile, 'w');
if (not $fh) {
$log->error(2, "unable to create $infile [$!]");
return;
}
foreach my $name (@eventFiles, @imageFiles) {
$fh->print($name . "\n");
}
$fh->close;
my $catfile = $filename->get('hk', 'uvot', 'ct', '*');
if (not -f $catfile) {
$log->entry('No UVOT exposure catalogue to update');
}
else {
$log->entry('UVOT exposure catalogue update not implemented');
}
my $prefix = 'Qz3'; # a unique string
my $tool = Util::HEAdas->new('uvotimage')->is_script(1);
$tool->params({
infile => '@' . $infile,
prefix => $prefix,
attfile => $attfile,
teldeffile => 'CALDB',
alignfile => 'CALDB',
ra => $jobpar->read('ra'),
dec => $jobpar->read('dec'),
roll => $jobpar->read('roll'),
# badpix => 'no',
# flatfield => 'no',
# mod8corr => 'no',
# catfile => $catfile,
chatter => 5,
})
->run;
unlink $infile;
# edit each image to include keywords
my $dateobs = $jobpar->read('obsdate') . 'T' . $jobpar->read('obstime');
my $dateend = $jobpar->read('enddate') . 'T' . $jobpar->read('endtime');
my %keys = (
'DATE-OBS' => $dateobs,
'DATE-END' => $dateend,
RA_PNT => $jobpar->read('ra'),
DEC_PNT => $jobpar->read('dec'),
PA_PNT => $jobpar->read('roll'),
);
my $keywords = 'uvotimage.key';
$fh = FileHandle->new($keywords, 'w');
while (my ($k, $v) = each(%keys)) {
$fh->print("$k = $v\n");
}
$fh->close;
my $edit = Util::HEAdas->new('fthedit')
->params({
keywords => '@' . $keywords,
});
# move each file ${prefix}xxx to sw<obsid>xxx
my $swobsid = $filename->sequence_specific;
foreach my $name (glob($prefix . '*')) {
my $xxx = substr($name, length($prefix));
my $fixed = $swobsid . $xxx;
if (-f $fixed) {
unlink($fixed);
}
rename($name, $fixed);
# $edit->params({ infile => $fixed })->run;
}
# unlink($keywords);
} # end create images method
###############################################################################
# convert raw coordinate images to detector coordinates
###############################################################################
sub image_raw_to_det
{
my $self=shift;
my $log =$self->log();
my $filename=$self->filename();
my $procpar =$self->procpar();
my $jobpar =$self->jobpar();
$log->entry("Converting raw grism images to detector coordinates");
my $attfile = $filename->get('attitude', 's');
if (not $attfile) {
$attfile = 'NONE';
}
#########################################
# create the swiftxform tool
#########################################
my $swiftxform = Util::HEAdas->new('swiftxform');
$swiftxform->params({
teldeffile => 'CALDB',
to => 'DET',
attfile => $attfile,
ra => $jobpar->read('ra'),
dec => $jobpar->read('dec'),
roll => $jobpar->read('roll'),
aberration => 'no',
seed => $procpar->read('seed'),
chatter => 4,
})
->is_script(1);
######################
# loop over _GRISM_ files
# since only they are converted to DET coordinates
######################
foreach my $rawFile ($filename->get('rawimage', 'uvot', 'g*', '*') ) {
#########################################
# determine the DET coordinate filename
#########################################
my $detFile = $filename->corresponding("rawimage", "detimage", $rawFile);
$log->entry("converting $rawFile to $detFile");
######################
# do the conversion
######################
$swiftxform->params({
infile => $rawFile,
outfile => $detFile,
})
->run();
} # end of loop over files
} # end of image_raw_to_det method
sub aspect_correct_sky_images
{
my $self = shift;
my $log =$self->log();
my $filename=$self->filename();
my $procpar =$self->procpar();
my $jobpar =$self->jobpar();
$log->entry('Performing aspect correction on UVOT images');
my $attfile = $filename->get('attitude', 's');
if (not $attfile) {
$log->error(2, 'no attitude file available');
return;
}
my @skyFiles = $filename->get('filterimg', 'uvot', '*');
if (not @skyFiles) {
$log->entry("no sky images to correct");
return;
}
my $infile = 'uvotskycorr.files';
my $fh = FileHandle->new($infile, 'w');
if (not $fh) {
$log->error(2, "unable to create $infile [$!]");
return;
}
foreach my $name (@skyFiles) {
$fh->print($name . "\n");
}
$fh->close;
my $corrfile = $filename->get('hk', 'u', 'ac', 0);
my $catspec = $procpar->read('starcatalog');
unlink($corrfile);
$log->entry('finding corrections');
my $find = Util::HEAdas->new('uvotskycorr')->is_script(1);
$find->params({
skyfile => '@' . $infile,
what => 'ID',
outfile => $corrfile,
corrfile => 'NONE',
attfile => $attfile,
catspec => $catspec,
starid => 'n.reference=50 n.observation=30',
chatter => 5,
})
->run;
return if not -f $corrfile;
$log->entry('applying corrections');
my $apply = Util::HEAdas->new('uvotskycorr')->is_script(1);
$apply->params({
skyfile => '@' . $infile,
what => 'SKY',
outfile => 'NONE',
corrfile => $corrfile,
attfile => $attfile,
catspec => $catspec,
chatter => 5,
})
->run;
unlink $infile;
#######################################################################
# Apply aspect corrections to attitude file. First check if there are
# any corrections to apply.
#######################################################################
my $corrfits = Util::FITSfile->new($corrfile)->cols('ASPCORR');
my @corrections = $corrfits->table();
if( grep(/1/, @corrections) ){
$log->entry('applying corrections to attitude file');
my $jumpatt = $filename->get('attcorr', 'p');
my $uvotatt = $filename->get('attcorr', 'u');
my $inatt = -f $jumpatt ? $jumpatt : $attfile;
my $att_corr = Util::HEAdas->new('uvotattcorr')->is_script(1);
$att_corr->params({attfile => $inatt,
corrfile => $corrfile,
outfile => $uvotatt})
->run();
my $attfits = Util::FITSfile->new($attfile, 0);
my $attstatus = $attfits->keyword('ATTSTATU');
if( $att_corr->had_error() ){
$attstatus += 2;
unlink $uvotatt;
}else{
$attstatus += 1;
my $flags = 111;
$flags = 101 unless -f $jumpatt;
my $uattfits = Util::FITSfile->new($uvotatt);
for(my $i=0; $i<3; $i++){
$uattfits->ext($i);
$uattfits->keyword('ATTFLAG', $flags, 'Orgin of attitude information');
}
}
$attfits->keyword('ATTSTATU', $attstatus, 'Status of corrected attitude files');
}
} # end of aspect_correct_sky_images method
###############################################################################
# generate exposure maps
###############################################################################
sub create_exposure_maps {
my $self=shift;
my $log = $self->log();
my $filename= $self->filename();
my $procpar = $self->procpar();
my $jobpar = $self->jobpar();
$log->entry("Creating exposure maps");
######################################################
# make sure there is an attitude file
######################################################
my $attitude = $filename->get('attitude', 's');
unless(-f $attitude) {
$log->entry("No attitude data available - can't make exposure maps");
return;
}
#########################################
# create the swiftxform tool
#########################################
my $uexpmap = Util::HEAdas->new('uvotexpmap');
$uexpmap->params({
attfile => $attitude,
teldeffile => 'CALDB',
method => 'MEANFOV', # TODO: is SHIFT/ADD in effect?
attdelta => 100, # TODO: make a parameter
aberration => 'no',
chatter => 4,
});
######################
# loop over files
######################
foreach my $skyFile ($filename->get('filterimg', 'uvot', '*', '*') ) {
# exclude grism files
next if $filename->is_grism($skyFile, 'skyimage');
#########################################
# determine the exposure map filename
#########################################
my $expFile = $skyFile;
$expFile =~ s/_sk\./_ex\./;
$log->entry("building exposure map $expFile for $skyFile");
my $badFile = $skyFile;
$badFile =~ s/_sk\./_bp\./;
if (not -f $badFile) {
$log->entry("no bad pixel file for $skyFile");
$badFile = 'NONE';
}
#######################
# make the exposure map
#######################
$uexpmap->params({
infile => $skyFile,
badpixfile => $badFile,
outfile => $expFile,
})
->is_script(1)
->run();
} # end of loop over files
} # end of create_exposure_maps method
sub sum_images {
my $self=shift;
my $log = $self->log();
my $filename= $self->filename();
my $procpar = $self->procpar();
my $jobpar = $self->jobpar();
$log->entry("Creating summed images");
################################
# Create tool for summing images
################################
my $usumexp = Util::HEAdas->new('uvotimsum');
my $tmpFile = 'sum.tmp';
########################################
# clean up any pre-existing summed files
########################################
foreach my $type (qw(skyimage expimage)) {
foreach my $imageFile ($filename->get($type, 'uvot', '', '*')) {
$log->entry("removing obsolete summed image $imageFile");
unlink($imageFile);
}
}
######################
# loop over files
######################
my %filter_to_sum = ('filterimg' => 'skyimage',
'filterexp' => 'expimage');
foreach my $type (keys %filter_to_sum) {
foreach my $imageFile ($filename->get($type, 'uvot', '*', '*')) {
my (undef, $filter_code) = $filename->parse($imageFile, $type);
$log->entry("Filter code for $imageFile is $filter_code.");
next if not $filter_code;
#########################################
# determine the summed image filename
# by removing the filter code from sw\d{9}uff(sk|ex).img
#########################################
my $sumFile = $filename->get($filter_to_sum{$type}, 'uvot', '', 0);
$log->entry("summing $imageFile to $sumFile");
my $filter = $filename->filter_name_for_code($filter_code);
######################
# do the summation
######################
$usumexp->params({
infile => $imageFile,
outfile => $tmpFile,
expmap => ($type =~ /exp/ ? 'yes' : 'no'),
})
->is_script(1)
->run();
my $keys = "[col "
. " #EXTNAME='$filter';"
. " #FILTER='$filter';"
. ']';
if (not -e $tmpFile) {
$log->entry("no $filter summed image");
}
elsif (not -e $sumFile) {
Util::HEAdas->new('ftcopy')
->params({
infile => $tmpFile . "[col #EXTNAME='$filter']",
outfile => $sumFile,
copyall => 'yes',
})
->run();
}
else {
# append this result to the sum file
Util::HEAdas->new('ftappend')
->params({
infile => "$tmpFile+1[col #EXTNAME='$filter']",
outfile => $sumFile,
})
->run();
}
unlink($tmpFile);
} # end of loop over files
} # end of loop over types
} # end of process_sky method
sub detect_sources {
my $self=shift;
my $log = $self->log();
my $filename= $self->filename();
my $procpar = $self->procpar();
my $jobpar = $self->jobpar();
$log->entry("Detecting sources");
########################################
# clean up any pre-existing source lists
########################################
foreach my $catFile ($filename->get('srclist', 'uvot', '', '*')) {
unlink($catFile);
}
###############################################################
# Create tools for detecting sources and determining magnitudes
###############################################################
my $udetect = Util::HEAdas->new('uvotdetect');
my $umag = Util::HEAdas->new('uvotmag');
$umag->params({
zerofile => 'CALDB',
coinfile => 'CALDB',
filter => 'default',
});
my $tmpFile = 'sources.tmp';
my $catFile = undef;
#############################
# loop over summed sky images
#############################
foreach my $skyFile ($filename->get('skyimage', 'uvot', '', '*')) {
$log->entry("detect: skyFile '$skyFile'");
my $expFile = $filename->corresponding('skyimage', 'expimage', $skyFile);
if (not $expFile or not -f $expFile) {
$log->entry("No exposure data for $skyFile - assuming constant exposure");
$expFile = 'NONE';
}
if (not $catFile) {
$catFile = $filename->corresponding('skyimage', 'srclist', $skyFile);
}
#########################################
# run uvotdetect on each extension
#########################################
my $fitsFile = Util::FITSfile->new($skyFile, 0);
my $nhdus = $fitsFile->nhdus();
for (my $hdu0 = 1; $hdu0 < $nhdus; ++$hdu0) {
$fitsFile->ext($hdu0);
my $filter = $fitsFile->keyword('EXTNAME');
my $weightFile = $expFile;
if ($expFile ne 'NONE') {
$weightFile .= "[$filter]";
}
if (-e $tmpFile) {
unlink($tmpFile);
}
$udetect->params({
infile => "$skyFile+$hdu0",
outfile => $tmpFile,
expfile => 'NONE',
threshold => 3, # TODO: make parameter
})
->is_script(1)
->run();
# run uvotmag
if (-e $tmpFile) {
$umag->params({
infile => $tmpFile,
})
->is_script(1)
->run();
}
if (not -e $catFile) {
Util::HEAdas->new('ftcopy')
->params({
infile => $tmpFile . "[col #EXTNAME='$filter']",
outfile => $catFile,
copyall => 'yes',
})
->run();
}
else {
# append this result to the sum file
Util::HEAdas->new('ftappend')
->params({
infile => "$tmpFile+1[col #EXTNAME='$filter']",
outfile => $catFile,
})
->run();
}
} # end of loop over extensions
} # end of loop over files
unlink($tmpFile) if -e $tmpFile;
} # end of detect_sources method
################################################################################
#
################################################################################
sub plot_images {
my $self = shift;
my $log =$self->log();
my $filename=$self->filename();
my $procpar =$self->procpar();
my $jobpar =$self->jobpar();
my $max_image_dimen=1024;
$log->entry("Plotting all images");
my $ximage = Util::Xanadu->new("ximage");
my $type;
foreach $type ("detimage", "skyimage") {
my $plot_type = $type;
$plot_type =~ s/image/plot/;
######################################
# loop over summed images of this type
######################################
my $file;
foreach my $file ($filename->get($type, 'uvot', '', '*')) {
my ($title1, $title2);
my $fitsFile = Util::FITSfile->new($file, 0);
my $nhdus = $fitsFile->nhdus();
my $grid='';
if($type =~ /^sky/ ) { $grid = 'grid' }
my $date = $fitsFile->keyword('DATE-OBS');
$date =~ s/T.*$//;
$title1 = $jobpar->read('object') .' SWIFT '.
$jobpar->read('sequence') .' '. $date;
my $inst = $fitsFile->keyword('INSTRUME');
my $stat = Util::HEAdas->new('ftstat')
->params({centroid => 'no'});
##############################################
# for each extension (filter) create a graphic
##############################################
for(my $hdu=1; $hdu<$nhdus; $hdu++) {
$stat->params({infile => "$file\[$hdu\]"})
->run();
my $par = $stat->parfile();
my @commands;
push @commands, ('cpd /vgif', 'cey 2000');
push @commands, ('color/setcolor=0/namecolor=white');
push @commands, ('color/setcolor=1/namecolor=black');
$fitsFile->ext($hdu);
my $filter = $fitsFile->keyword('EXTNAME');
my $exp = $fitsFile->keyword('EXPOSURE');
my $filter_code = $filename->filter_code_for_name($filter);
$title2 = $inst .' '. $filter .' Exposure '.
sprintf('%10d', int($exp)) .'s';
my $plotFile = $filename->get($plot_type, 'uvot', $filter_code, 0);
########################################
# determine if we need to bin the image
########################################
my $dimen = $fitsFile->keyword('NAXIS1');
my $bin=1;
for($bin=1; $max_image_dimen*$bin<$dimen; $bin++) {}
$log->entry("Plotting ${file}\[$hdu\] in $plotFile binned by $bin");
push @commands, ("read/fits/rebin=$bin \{${file}\[$hdu\]\}",
'levels/num=239',
'cct/set bb',
"title \"$title1\"",
"title/lower \"$title2\"",
"disp/min=". $par->read('min') ."/max=". $par->read('max'),
$grid,
'scale',
'show');
push @commands, 'exit';
$ximage->script(@commands)->run();
rename 'pgplot.gif', $plotFile;
}
}
}
} # end of plot_images method
1;