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# --8<--8<--8<--8<-- |
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# |
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# Copyright (C) 2008 Smithsonian Astrophysical Observatory |
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# |
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# This file is part of Astro::XSPEC::TableModel |
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# |
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# Astro::XSPEC::TableModel is free software: you can redistribute it |
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# and/or modify it under the terms of the GNU General Public License |
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# as published by the Free Software Foundation, either version 3 of |
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# the License, or (at your option) any later version. |
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# |
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# This program is distributed in the hope that it will be useful, |
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# but WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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# GNU General Public License for more details. |
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# |
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# You should have received a copy of the GNU General Public License |
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# along with this program. If not, see . |
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# |
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# -->8-->8-->8-->8-- |
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package Astro::XSPEC::TableModel; |
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517648
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use 5.00800; |
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use strict; |
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use warnings; |
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use base 'Exporter'; |
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our @EXPORT_OK = qw( write_table ); |
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use Carp; |
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use List::Util qw( max ); |
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use Params::Validate qw( :all ); |
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use Astro::FITS::CFITSIO qw( :constants ); |
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use Astro::FITS::CFITSIO::CheckStatus; |
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use Astro::FITS::Header::Item; |
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use Astro::FITS::Header::CFITSIO; |
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our $VERSION = '0.01'; |
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# this rule is too broad |
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## no critic ( ProhibitAccessOfPrivateData ) |
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sub write_table { |
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my @fields; |
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my %opt = validate_with( |
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params => \@_, |
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spec => { |
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output => { type => SCALAR }, |
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model => 1, |
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units => 1, |
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additive => { type => BOOLEAN, default => '0' }, |
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redshift => { type => BOOLEAN, default => '0' }, |
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ipars => { type => ARRAYREF }, |
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apars => { type => ARRAYREF, default => [] }, |
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energy => { type => ARRAYREF }, |
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keywords => { type => ARRAYREF, default => [] }, |
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}, |
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normalize_keys => sub { lc $_[0] }, |
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); |
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tie my $err, 'Astro::FITS::CFITSIO::CheckStatus'; |
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my $fits = |
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Astro::FITS::CFITSIO::create_file( "!$opt{output}", |
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$err = "Error creating $opt{output}:" ); |
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# ------------------------------------- |
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# create PRIMARY HDU |
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$fits->create_img( 8, 0, 0, $err = 'Error creating primary HDU: ' ); |
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_write_cards( |
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$fits, |
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$opt{keywords}, |
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[ |
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STRING => |
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CONTENT => 'MODEL', |
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'spectrum file contains time intervals and event' |
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], |
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[ STRING => MODLNAME => $opt{model}, 'Model name' ], |
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[ STRING => MODLUNIT => $opt{units}, 'Model units' ], |
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[ |
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LOGICAL => |
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REDSHIFT => $opt{redshift}, |
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'If true then redshift will be included as a parameter' |
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], |
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[ |
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LOGICAL => |
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ADDMODEL => $opt{additive}, |
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'If true then this is an additive table model' |
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], |
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[ STRING => HDUCLASS => 'OGIP', 'format conforms to OGIP standard' ], |
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[ |
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STRING => |
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HDUCLAS1 => 'XSPEC TABLE MODEL', |
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'model spectra for XSPEC' |
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], |
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[ STRING => HDUVERS1 => '1.0.0', 'version of format' ] ); |
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# ------------------------------------- |
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# create PARAMETERS HDU |
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@fields = ( |
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{ type => 'NAME', form => '12A', unit => ' ' }, |
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{ type => 'METHOD', form => 'J', unit => ' ' }, |
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{ type => 'INITIAL', form => 'E', unit => ' ' }, |
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{ type => 'DELTA', form => 'E', unit => ' ' }, |
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{ type => 'MINIMUM', form => 'E', unit => ' ' }, |
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{ type => 'BOTTOM', form => 'E', unit => ' ' }, |
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{ type => 'TOP', form => 'E', unit => ' ' }, |
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{ type => 'MAXIMUM', form => 'E', unit => ' ' }, |
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{ type => 'NUMBVALS', form => 'J', unit => ' ' }, |
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{ type => 'VALUE', form => 'E', unit => ' ' }, |
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); |
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my %field = (); |
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for my $col ( 1 .. @fields ) |
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{ |
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my $f = $fields[ $col - 1 ]; |
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$f->{col} = $col; |
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$field{ $f->{type} } = $f; |
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} |
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my @ipars = _validate_pars( \%field, $opt{ipars}, 'interpolated' ); |
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my @apars = _validate_pars( \%field, $opt{apars}, 'additional' ); |
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# update form for VALUE to equal maximum NUMBVALS |
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my $nvals = max map { scalar @{ $_->{VALUE} } } @ipars; |
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$field{VALUE}{form} = $nvals . $field{VALUE}{form}; |
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_create_tbl( $fits, 'PARAMETERS', @fields ); |
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136
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_write_cards( |
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$fits, |
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[], |
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[ STRING => HDUCLASS => 'OGIP', 'format conforms to OGIP standard' ], |
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[ |
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STRING => |
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HDUCLAS1 => 'XSPEC TABLE MODEL', |
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'model spectra for XSPEC' |
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], |
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[ |
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STRING => |
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HDUCLAS2 => 'PARAMETERS', |
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'extension containing parameter info' |
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], |
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[ STRING => HDUVERS1 => '1.0.0', 'version of format' ], |
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[ |
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INT => |
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NINTPARM => scalar @ipars, |
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'Number of interpolation parameters' |
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], |
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[ INT => NADDPARM => scalar @apars, 'Number of additional parameters' ], |
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); |
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159
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# ------------------------------------- |
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# write the parameters |
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my $row = 0; |
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for my $par ( @ipars, @apars ) |
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{ |
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$row++; |
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while ( my ( $key, $value ) = each %{$par} ) |
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{ |
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my $field = $field{$key}; |
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if ( $field->{type} eq 'VALUE' ) |
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{ |
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my $numbvals = @$value; |
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$fits->write_col_dbl( $field->{col}, $row, 1, $numbvals, $value, |
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$err ); |
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$fits->write_col_dbl( $field{NUMBVALS}{col}, |
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$row, 1, 1, $numbvals, $err ); |
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} |
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else |
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{ |
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my $datatype = $field->{form} =~ /A/ ? TSTRING : TDOUBLE; |
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$fits->write_col( $datatype, $field->{col}, $row, 1, 1, $value, $err ); |
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} |
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} |
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} |
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# ------------------------------------- |
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# create the ENERGIES HDU |
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190
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@fields = ( |
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{ type => 'ENERG_LO', form => 'E', unit => ' ' }, |
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{ type => 'ENERG_HI', form => 'E', unit => ' ' }, |
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); |
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_create_tbl( $fits, 'ENERGIES', @fields ); |
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_write_cards( |
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$fits, |
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[], |
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[ STRING => HDUCLASS => 'OGIP', 'format conforms to OGIP standard' ], |
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[ |
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STRING => |
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HDUCLAS1 => 'XSPEC TABLE MODEL', |
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'model spectra for XSPEC' |
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], |
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[ |
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STRING => |
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HDUCLAS2 => 'ENERGIES', |
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'extension containing energy bin info' |
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], |
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[ STRING => HDUVERS1 => '1.0.0', 'version of format' ], |
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); |
213
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214
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# ick. |
215
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my @energy = @{ $opt{energy} }; |
216
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my $nenergy = @energy - 1; |
217
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$fits->write_col_dbl( 1, 1, 1, $nenergy, \@energy, $err ); |
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shift @energy; |
219
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$fits->write_col_dbl( 2, 1, 1, $nenergy, \@energy, $err ); |
220
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221
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# ------------------------------------- |
222
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# finally, create the SPECTRA HDU |
223
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224
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@fields = ( |
225
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{ type => 'PARAMVAL', form => @ipars . 'E', unit => ' ' }, |
226
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{ type => 'INTPSPEC', form => $nenergy . 'E', unit => $opt{units} }, |
227
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); |
228
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229
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push @fields, |
230
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{ type => "ADDSP$_", form => $nenergy . 'E', unit => $opt{units} } |
231
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for 1 .. @apars; |
232
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233
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_create_tbl( $fits, 'SPECTRA', @fields ); |
234
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235
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_write_cards( |
236
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$fits, |
237
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[], |
238
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[ STRING => HDUCLASS => 'OGIP', 'format conforms to OGIP standard' ], |
239
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[ |
240
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STRING => |
241
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HDUCLAS1 => 'XSPEC TABLE MODEL', |
242
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'model spectra for XSPEC' |
243
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], |
244
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[ |
245
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STRING => |
246
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HDUCLAS2 => 'ENERGIES', |
247
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'extension containing energy bin info' |
248
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], |
249
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[ STRING => HDUVERS1 => '1.0.0', 'version of format' ], |
250
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); |
251
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252
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return $fits; |
253
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} |
254
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255
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# -------------------------------- |
256
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sub _create_tbl { |
257
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258
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my ( $fits, $extname, @fields ) = @_; |
259
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260
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tie my $err, 'Astro::FITS::CFITSIO::CheckStatus'; |
261
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262
|
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$fits->create_tbl( BINARY_TBL, |
263
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0, |
264
|
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scalar @fields, |
265
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[ map { $_->{type} } @fields ], |
266
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[ map { $_->{form} } @fields ], |
267
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[ map { $_->{unit} } @fields ], |
268
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|
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$extname, |
269
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|
|
$err = "Error creating $extname HDU: " |
270
|
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); |
271
|
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272
|
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|
|
return; |
273
|
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|
|
} |
274
|
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275
|
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|
|
# -------------------------------- |
276
|
|
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|
|
|
|
# write FITS cards to the CHU. |
277
|
|
|
|
|
|
|
# Each card is an array with elements [ type, keyword, value, comment ] |
278
|
|
|
|
|
|
|
# where type is a string recognized by Astro::FITS::Header. |
279
|
|
|
|
|
|
|
|
280
|
|
|
|
|
|
|
sub _write_cards { |
281
|
|
|
|
|
|
|
my ( $fptr, $items, @cards ) = @_; |
282
|
|
|
|
|
|
|
|
283
|
|
|
|
|
|
|
my $hdr = Astro::FITS::Header::CFITSIO->new( fitsID => $fptr ); |
284
|
|
|
|
|
|
|
|
285
|
|
|
|
|
|
|
$hdr->insert( -1, $_ ) foreach @$items; |
286
|
|
|
|
|
|
|
|
287
|
|
|
|
|
|
|
$hdr->insert( |
288
|
|
|
|
|
|
|
-1, |
289
|
|
|
|
|
|
|
Astro::FITS::Header::Item->new( |
290
|
|
|
|
|
|
|
Type => $_->[0], |
291
|
|
|
|
|
|
|
Keyword => $_->[1], |
292
|
|
|
|
|
|
|
Value => $_->[2], |
293
|
|
|
|
|
|
|
Comment => $_->[3] ) ) foreach @cards; |
294
|
|
|
|
|
|
|
$hdr->writehdr( fitsID => $fptr ); |
295
|
|
|
|
|
|
|
|
296
|
|
|
|
|
|
|
return; |
297
|
|
|
|
|
|
|
} |
298
|
|
|
|
|
|
|
|
299
|
|
|
|
|
|
|
# -------------------------------- |
300
|
|
|
|
|
|
|
# validate parameter structures |
301
|
|
|
|
|
|
|
sub _validate_pars { |
302
|
|
|
|
|
|
|
|
303
|
|
|
|
|
|
|
my ( $fields, $pars, $type ) = @_; |
304
|
|
|
|
|
|
|
|
305
|
|
|
|
|
|
|
# rewrite parameter hash with normalized keywords |
306
|
|
|
|
|
|
|
my @pars; |
307
|
|
|
|
|
|
|
|
308
|
|
|
|
|
|
|
my %keys = map { $_ => 1 } keys %{$fields}; |
309
|
|
|
|
|
|
|
|
310
|
|
|
|
|
|
|
# exclude NUMBVALS, as that's generated automatically |
311
|
|
|
|
|
|
|
my @delkeys = qw( NUMBVALS ); |
312
|
|
|
|
|
|
|
|
313
|
|
|
|
|
|
|
# "additional" parameters don't need this |
314
|
|
|
|
|
|
|
push @delkeys, qw( METHOD VALUE ) |
315
|
|
|
|
|
|
|
if $type eq 'additional'; |
316
|
|
|
|
|
|
|
|
317
|
|
|
|
|
|
|
delete @keys{@delkeys}; |
318
|
|
|
|
|
|
|
my @keys = keys %keys; |
319
|
|
|
|
|
|
|
|
320
|
|
|
|
|
|
|
my $row = 0; |
321
|
|
|
|
|
|
|
for my $par (@$pars) |
322
|
|
|
|
|
|
|
{ |
323
|
|
|
|
|
|
|
$row++; |
324
|
|
|
|
|
|
|
|
325
|
|
|
|
|
|
|
# normalize keywords |
326
|
|
|
|
|
|
|
my %pars = map { uc $_ => $par->{$_} } keys %$par; |
327
|
|
|
|
|
|
|
|
328
|
|
|
|
|
|
|
my $name = $pars{NAME} || $row; |
329
|
|
|
|
|
|
|
|
330
|
|
|
|
|
|
|
# any missing? |
331
|
|
|
|
|
|
|
my @missing = grep { !defined $pars{$_} } @keys; |
332
|
|
|
|
|
|
|
croak( "$type parameter $name: missing attributes: ", |
333
|
|
|
|
|
|
|
join( ', ', @missing ), "\n" ) |
334
|
|
|
|
|
|
|
if @missing; |
335
|
|
|
|
|
|
|
|
336
|
|
|
|
|
|
|
# any extra? really meant to catch errors in "additional" parameters |
337
|
|
|
|
|
|
|
my @extra = grep { defined $pars{$_} } @delkeys; |
338
|
|
|
|
|
|
|
croak( "$type parameter $name: illegal extra attributes: ", |
339
|
|
|
|
|
|
|
join( ', ', @extra ), "\n" ) |
340
|
|
|
|
|
|
|
if @extra; |
341
|
|
|
|
|
|
|
|
342
|
|
|
|
|
|
|
push @pars, \%pars; |
343
|
|
|
|
|
|
|
} |
344
|
|
|
|
|
|
|
|
345
|
|
|
|
|
|
|
return @pars; |
346
|
|
|
|
|
|
|
} |
347
|
|
|
|
|
|
|
|
348
|
|
|
|
|
|
|
1; |
349
|
|
|
|
|
|
|
|
350
|
|
|
|
|
|
|
__END__ |