NAME

Lab::Data::Meta - Meta data for datasets

SYNOPSIS

    use Lab::Data::Meta;
    
    my $meta2=new Lab::Data::Meta({
        dataset_title  => "testtest",
        column         => [
            {label  =>'hallo'},
            {label  =>'selber hallo',
             unit   =>'mV'},
        ],
        axis           => [
            {
                unit        => 's',
                description => 'the time',
            },
            {
                unit        => 'eV',
                description => 'kinetic energy',
            },
        ],
    });

DESCRIPTION

This module maintains meta information on a dataset. It's build on top of Lab::Data::XMLtree.

CONSTRUCTOR

new

    $meta=new Lab::Data::Meta(\%metainfo);

Currently, Lab::Data::Meta supports the following bits of meta information:

    data_complete               => ['SCALAR'],  # boolean

    dataset_title               => ['SCALAR'],
    dataset_description         => ['SCALAR'],  # multiline
    sample                      => ['SCALAR'],
    data_file                   => ['SCALAR'],  # relativ zur descriptiondatei

    block                   => [
        'ARRAY',
        'id',
        {
            original_filename   => ['SCALAR'],  # nur von GPplus-Import unterstützt
            timestamp           => ['SCALAR'],  # Format %Y/%m/%d-%H:%M:%S
            description         => ['SCALAR'],
            label               => ['SCALAR'],
        }
    ],
    column                  => [
        'ARRAY',
        'id',
        {
            unit                => ['SCALAR'],
            label               => ['SCALAR'],  # evtl. weg
            description         => ['SCALAR'],  # evtl. weg
            min                 => ['SCALAR'],  # unnütz, aber von GPplus-Import unterstützt
            max                 => ['SCALAR'],  # dito
        }
    ],
    axis                    => [
        'ARRAY',
        'id',
        {
            label               => ['SCALAR'],
            unit                => ['SCALAR'],
            expression          => ['SCALAR'],
            min                 => ['SCALAR'],
            max                 => ['SCALAR'],
            description         => ['SCALAR'],  # evtl. weg
        }
    ],
    plot                    => [
        'HASH',
        'name',
        {
            type                => ['SCALAR'],  # line, pm3d
            xaxis               => ['SCALAR'],
            xformat             => ['SCALAR'],
            yaxis               => ['SCALAR'],
            yformat             => ['SCALAR'],
            zaxis               => ['SCALAR'],
            zformat             => ['SCALAR'],
            cbaxis              => ['SCALAR'],
            cbformat            => ['SCALAR'],
            logscale            => ['SCALAR'],  # z.b: 'x' oder 'yzxcb'
            time                => ['SCALAR'],  # ??? (was: wie oben (anders als in GnuPlot) (Achsen müssen %s-Format haben))
            grid                => ['SCALAR'],  # z.B. 'ytics' oder 'xtics ytics'
            palette             => ['SCALAR'],
            label               => [
                'ARRAY',
                'id',
                {
                    text        => ['SCALAR'],
                    x           => ['SCALAR'],
                    y           => ['SCALAR'],
                }
            ],
        }
    ],
    constant                => [
        'ARRAY',
        'id',
        {
            name                => ['SCALAR'],
            value               => ['SCALAR'],
        }
    ],

new_from_file

    $meta=new_from_file Lab::Data::Meta($filename);

METHODS

save

    $meta->save($filename);

get_abs_path

    my $path=get_abs_path();

AUTHOR/COPYRIGHT

Copyright 2004-2006 Daniel Schröer (http://www.danielschroeer.de), 2011 Andreas K. Hüttel

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.