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

This is $Id: Meta.pm 479 2006-08-11 09:25:07Z schroeer $

Copyright 2004-2006 Daniel Schröer (http://www.danielschroeer.de)

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