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NAME
    TPSADescriptors

SYNOPSIS
    use MolecularDescriptors::TPSADescriptors;

    use MolecularDescriptors::TPSADescriptors qw(:all);

DESCRIPTION
    TPSADescriptors class provides the following methods:

    new, GenerateDescriptors, GetDescriptorNames, StringifyTPSADescriptors

    TPSADescriptors is derived from MolecularDescriptors class which in turn
    is derived from ObjectProperty base class that provides methods not
    explicitly defined in TPSADescriptors, MolecularDescriptors or
    ObjectProperty classes using Perl's AUTOLOAD functionality. These
    methods are generated on-the-fly for a specified object property:

        Set<PropertyName>(<PropertyValue>);
        $PropertyValue = Get<PropertyName>();
        Delete<PropertyName>();

    After Topological Polar Surface Area (TPSA) atom types [ Ref 90-91 ] has
    been assigned to appropriate atoms in a molecule using
    AtomTypes::TPSAAtomTypes.pm module, TPSA value is calculated by adding
    up contributions of each appropriate atom type.

    By default, MayaChemTools only uses nitrogen and oxygen atoms during
    calculation of TPSA and ignores phosphorous and sulfur atoms. [ Ref 90 -
    91 ]

  METHODS
    new
            $NewTPSADescriptors = new MolecularDescriptors::TPSADescriptors(
                                                           %NamesAndValues);

        Using specified *TPSADescriptors* property names and values hash,
        new method creates a new object and returns a reference to newly
        created TPSADescriptors object. By default, the following properties
        are initialized:

            Molecule = ''
            Type = 'TPSA'
            IgnorePhosphorus = 1
            IgnoreSulfur = 1
            @DescriptorNames = ('TPSA')
            @DescriptorValues = ('None')

        Examples:

            $TPSADescriptors = new MolecularDescriptors::TPSADescriptors(
                                      'Molecule' => $Molecule);

            $TPSADescriptors = new MolecularDescriptors::TPSADescriptors();

            $TPSADescriptors = new MolecularDescriptors::TPSADescriptors(
                                      'IgnorePhosphorus' => 0,
                                      'IgnoreSulfur' => 0);

            $TPSADescriptors->SetMolecule($Molecule);
            $TPSADescriptors->GenerateDescriptors();
            print "TPSADescriptors: $TPSADescriptors\n";

    GenerateDescriptors
            $TPSADescriptors->GenerateDescriptors();

        Calculate TPSA value for a molecule and returns *TPSADescriptors*.

    GetDescriptorNames
            @DescriptorNames = $TPSADescriptors->GetDescriptorNames();
            @DescriptorNames = MolecularDescriptors::TPSADescriptors::
                               GetDescriptorNames();

        Returns all available descriptor names as an array.

    StringifyTPSADescriptors
            $String = $TPSADescriptors->StringifyTPSADescriptors();

        Returns a string containing information about *TPSADescriptors*
        object.

AUTHOR
    Manish Sud <[e-mail]>

SEE ALSO
    MolecularDescriptors.pm, MolecularDescriptorsGenerator.pm

COPYRIGHT
    Copyright (C) 2015 Manish Sud. All rights reserved.

    This file is part of MayaChemTools.

    MayaChemTools is free software; you can redistribute it and/or modify it
    under the terms of the GNU Lesser General Public License as published by
    the Free Software Foundation; either version 3 of the License, or (at
    your option) any later version.