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package Demeter::Data::Parts;
use Moose::Role;
use Demeter::StrTypes qw( DataPart FitSpace );
use Carp;
## parts are plotted and Fourier transformed just like their
## respective data, these methods just rewrite the data plot()
## fftf() or fftr() command using the group name of the part
sub part_fft {
my ($self, $part) = @_;
my $command = $self->_part_fft_command($part);
#print $command;
$self->dispose($command);
return $self;
};
sub _part_fft_command {
my ($self, $pt) = @_;
my $part = ($pt eq 'sum') ? 'fit' : $pt; # sum is a synonym for fit
croak('part_fft: valid parts are fit, res, and bkg') if (not is_DataPart($part));
my $datagroup = $self->group;
my $group = join("_", $datagroup, $part);
my $string = $self->_fft_command;
$string =~ s{\b$datagroup\b}{$group}g; # replace group names
return $string;
};
sub part_bft {
my ($self, $part) = @_;
my $command = $self->_part_bft_command($part);
$self->dispose($command);
return $self;
};
sub _part_bft_command {
my ($self, $pt) = @_;
my $part = ($pt eq 'sum') ? 'fit' : $pt; # sum is a synonym for fit
croak('part_bft: valid parts are fit, res, and bkg') if (not is_DataPart($part));
my $datagroup = $self->group;
my $group = join("_", $datagroup, $part);
my $string = $self->_bft_command;
$string =~ s{\b$datagroup\b}{$group}g; # replace group names
return $string;
};
sub part_plot {
my ($self, $part, $space) = @_;
$self->part_fft($part) if (lc($space) ne 'k');
$self->part_bft($part) if (lc($space) eq 'q');
my $command = $self->_part_plot_command($part, $space);
$self->dispose($command, "plotting");
$self->po->after_plot_hook($self, $part);
return $self;
};
sub _part_plot_command {
my ($self, $pt, $space) = @_;
my $pf = $self->mo->plot;
$pt ||= q{};
my $part = ($pt eq 'sum') ? 'fit' : $pt; # sum is a synonym for fit
croak('part_plot: valid parts are fit, res, and bkg') if (not is_DataPart($part));
croak('part_plot: valid plot spaces are k, R, and q') if (not is_FitSpace($space));
my $datagroup = $self->group;
my $group = (is_DataPart($part)) ? join("_", $datagroup, $part) : $self->name; ## huh?
my %labels = (bkg=>'background', fit=>$self->fitsum, res=>'residual');
# $labels{$part} ||= $part->name;
my $datalabel = $self->name;
$self->co->set(plot_part=>$part);
my $string = $self->hashes;
$string .= (is_DataPart($part)) ? " plot $labels{$part} ___\n" : " plot path ___\n";
my $plstring = $self->_plot_command($space);
$plstring =~ s{\b$datagroup\b}{$group}g; # replace group names
$string .= $plstring;
#print $string if ($part !~ /(?:bkg|fit|res)/);
## (?<+ ) is the positive zero-width look behind -- it only # }
## replaces the label when it follows q{key="}, i.e. it won't get
## confused by the same text in the title for a newplot
if ($self->get_mode("template_plot") eq "pgplot") {
$string =~ s{(?<=key=")$datalabel}{$labels{$part}} if ($datalabel);
} elsif ($self->get_mode("template_plot") eq "gnuplot") {
$string =~ s{(?<=title \")fit\"}{$labels{$part}\"};# if ($pt eq 'sum');
$string =~ s{(?<=title \").*\"}{\"} if ($datalabel =~ m{\A\s*\z});
};
$self->co->set(plot_part=>q{});
$self->co->set(plot_part=>q{});
return $string if (not is_DataPart($part));
## (?! ) is the negative zero-width look ahead -- it does not
## replace the group name when it is followed by k, r, or q
$string =~ s{\b$self(?!\.[krq]\b)}{$group}g;
return $string;
};
1;
=head1 NAME
Demeter::Data::Parts - Handle fit. background, and residual parts a fit
=head1 VERSION
This documentation refers to Demeter version 0.9.26.
=head1 METHODS
These methods generate processing command for the fit, background, and
residual parts of a fit using the processing parameters of the
associated Data object.
=over 4
=item C<part_fft>
Forward Fourier transform the fit, background, or residual part of the
data.
$dataobject -> part_fft($which);
The argument is one of 'fit', 'bkg', or 'res'.
=item C<part_bft>
Backward Fourier transform the fit, background, or residual part of the
data.
$dataobject -> part_bft($which);
The argument is one of 'fit', 'bkg', or 'res'.
=item C<part_plot>
Plot the fit, background, or residual part of the data.
$dataobject -> part_plot($which);
The argument is one of 'fit', 'bkg', or 'res'.
=back
=head1 CONFIGURATION
See L<Demeter::Config> for a description of the configuration
system.
=head1 DEPENDENCIES
Demeter's dependencies are in the F<Build.PL> file.
=head1 BUGS AND LIMITATIONS
=over 4
=item *
Cromer-Liberman normalization is not yet implemented.
=item *
Something like the Penner-Hahn mxan would be nice also.
=item *
There is currently no mechanism for importing an array into Ifeffit
and associating an object with it.
=back
Please report problems to the Ifeffit Mailing List
(L<http://cars9.uchicago.edu/mailman/listinfo/ifeffit/>)
Patches are welcome.
=head1 AUTHOR
Bruce Ravel, L<http://bruceravel.github.io/home>
L<http://bruceravel.github.io/demeter/>
=head1 LICENCE AND COPYRIGHT
Copyright (c) 2006-2019 Bruce Ravel (L<http://bruceravel.github.io/home>). All rights reserved.
This module is free software; you can redistribute it and/or
modify it under the same terms as Perl itself. See L<perlgpl>.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
=cut
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