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comparison mayachemtools/docs/modules/html/code/MolecularVolumeDescriptors.html @ 0:73ae111cf86f draft
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| author | deepakjadmin |
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| date | Wed, 20 Jan 2016 11:55:01 -0500 |
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| 1 <html> | |
| 2 <head> | |
| 3 <title>MayaChemTools:Code:MolecularDescriptors::MolecularVolumeDescriptors.pm</title> | |
| 4 <meta http-equiv="content-type" content="text/html;charset=utf-8"> | |
| 5 <link rel="stylesheet" type="text/css" href="../../../css/MayaChemToolsCode.css"> | |
| 6 </head> | |
| 7 <body leftmargin="20" rightmargin="20" topmargin="10" bottommargin="10"> | |
| 8 <br/> | |
| 9 <center> | |
| 10 <a href="http://www.mayachemtools.org" title="MayaChemTools Home"><img src="../../../images/MayaChemToolsLogo.gif" border="0" alt="MayaChemTools"></a> | |
| 11 </center> | |
| 12 <br/> | |
| 13 <pre> | |
| 14 <a name="package-MolecularDescriptors::MolecularVolumeDescriptors-"></a> 1 <span class="k">package </span><span class="i">MolecularDescriptors::MolecularVolumeDescriptors</span><span class="sc">;</span> | |
| 15 2 <span class="c">#</span> | |
| 16 3 <span class="c"># $RCSfile: MolecularVolumeDescriptors.pm,v $</span> | |
| 17 4 <span class="c"># $Date: 2015/02/28 20:49:20 $</span> | |
| 18 5 <span class="c"># $Revision: 1.16 $</span> | |
| 19 6 <span class="c">#</span> | |
| 20 7 <span class="c"># Author: Manish Sud <msud@san.rr.com></span> | |
| 21 8 <span class="c">#</span> | |
| 22 9 <span class="c"># Copyright (C) 2015 Manish Sud. All rights reserved.</span> | |
| 23 10 <span class="c">#</span> | |
| 24 11 <span class="c"># This file is part of MayaChemTools.</span> | |
| 25 12 <span class="c">#</span> | |
| 26 13 <span class="c"># MayaChemTools is free software; you can redistribute it and/or modify it under</span> | |
| 27 14 <span class="c"># the terms of the GNU Lesser General Public License as published by the Free</span> | |
| 28 15 <span class="c"># Software Foundation; either version 3 of the License, or (at your option) any</span> | |
| 29 16 <span class="c"># later version.</span> | |
| 30 17 <span class="c">#</span> | |
| 31 18 <span class="c"># MayaChemTools is distributed in the hope that it will be useful, but without</span> | |
| 32 19 <span class="c"># any warranty; without even the implied warranty of merchantability of fitness</span> | |
| 33 20 <span class="c"># for a particular purpose. See the GNU Lesser General Public License for more</span> | |
| 34 21 <span class="c"># details.</span> | |
| 35 22 <span class="c">#</span> | |
| 36 23 <span class="c"># You should have received a copy of the GNU Lesser General Public License</span> | |
| 37 24 <span class="c"># along with MayaChemTools; if not, see <http://www.gnu.org/licenses/> or</span> | |
| 38 25 <span class="c"># write to the Free Software Foundation Inc., 59 Temple Place, Suite 330,</span> | |
| 39 26 <span class="c"># Boston, MA, 02111-1307, USA.</span> | |
| 40 27 <span class="c">#</span> | |
| 41 28 | |
| 42 29 <span class="k">use</span> <span class="w">strict</span><span class="sc">;</span> | |
| 43 30 <span class="k">use</span> <span class="w">Carp</span><span class="sc">;</span> | |
| 44 31 <span class="k">use</span> <span class="w">Exporter</span><span class="sc">;</span> | |
| 45 32 <span class="k">use</span> <span class="w">Scalar::Util</span> <span class="s">(</span><span class="s">)</span><span class="sc">;</span> | |
| 46 33 <span class="k">use</span> <span class="w">TextUtil</span> <span class="s">(</span><span class="s">)</span><span class="sc">;</span> | |
| 47 34 <span class="k">use</span> <span class="w">MathUtil</span> <span class="s">(</span><span class="s">)</span><span class="sc">;</span> | |
| 48 35 <span class="k">use</span> <span class="w">Atom</span><span class="sc">;</span> | |
| 49 36 <span class="k">use</span> <span class="w">Molecule</span><span class="sc">;</span> | |
| 50 37 <span class="k">use</span> <span class="w">AtomTypes::AtomTypes</span><span class="sc">;</span> | |
| 51 38 <span class="k">use</span> <span class="w">MolecularDescriptors::MolecularDescriptors</span><span class="sc">;</span> | |
| 52 39 | |
| 53 40 <span class="k">use</span> <span class="w">vars</span> <span class="q">qw(@ISA @EXPORT @EXPORT_OK %EXPORT_TAGS)</span><span class="sc">;</span> | |
| 54 41 | |
| 55 42 <span class="i">@ISA</span> = <span class="q">qw(MolecularDescriptors::MolecularDescriptors Exporter)</span><span class="sc">;</span> | |
| 56 43 <span class="i">@EXPORT</span> = <span class="q">qw()</span><span class="sc">;</span> | |
| 57 44 <span class="i">@EXPORT_OK</span> = <span class="q">qw(GetDescriptorNames GetVDWAtomRadiiAndVolumesData)</span><span class="sc">;</span> | |
| 58 45 | |
| 59 46 <span class="i">%EXPORT_TAGS</span> = <span class="s">(</span><span class="w">all</span> <span class="cm">=></span> <span class="s">[</span><span class="i">@EXPORT</span><span class="cm">,</span> <span class="i">@EXPORT_OK</span><span class="s">]</span><span class="s">)</span><span class="sc">;</span> | |
| 60 47 | |
| 61 48 <span class="c"># Setup class variables...</span> | |
| 62 49 <span class="k">my</span><span class="s">(</span><span class="i">$ClassName</span><span class="cm">,</span> <span class="i">@DescriptorNames</span><span class="cm">,</span> <span class="i">%VDWAtomRadiiAndVolumesDataMap</span><span class="s">)</span><span class="sc">;</span> | |
| 63 50 <span class="i">_InitializeClass</span><span class="s">(</span><span class="s">)</span><span class="sc">;</span> | |
| 64 51 | |
| 65 52 <span class="c"># Overload Perl functions...</span> | |
| 66 53 <span class="k">use</span> <span class="w">overload</span> <span class="q">'""'</span> <span class="cm">=></span> <span class="q">'StringifyMolecularVolumeDescriptors'</span><span class="sc">;</span> | |
| 67 54 | |
| 68 55 <span class="c"># Class constructor...</span> | |
| 69 <a name="new-"></a> 56 <span class="k">sub </span><span class="m">new</span> <span class="s">{</span> | |
| 70 57 <span class="k">my</span><span class="s">(</span><span class="i">$Class</span><span class="cm">,</span> <span class="i">%NamesAndValues</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> | |
| 71 58 | |
| 72 59 <span class="c"># Initialize object...</span> | |
| 73 60 <span class="k">my</span> <span class="i">$This</span> = <span class="i">$Class</span><span class="i">->SUPER::new</span><span class="s">(</span><span class="s">)</span><span class="sc">;</span> | |
| 74 61 <span class="k">bless</span> <span class="i">$This</span><span class="cm">,</span> <span class="k">ref</span><span class="s">(</span><span class="i">$Class</span><span class="s">)</span> || <span class="i">$Class</span><span class="sc">;</span> | |
| 75 62 <span class="i">$This</span><span class="i">->_InitializeMolecularVolumeDescriptors</span><span class="s">(</span><span class="s">)</span><span class="sc">;</span> | |
| 76 63 | |
| 77 64 <span class="i">$This</span><span class="i">->_InitializeMolecularVolumeDescriptorsProperties</span><span class="s">(</span><span class="i">%NamesAndValues</span><span class="s">)</span><span class="sc">;</span> | |
| 78 65 | |
| 79 66 <span class="k">return</span> <span class="i">$This</span><span class="sc">;</span> | |
| 80 67 <span class="s">}</span> | |
| 81 68 | |
| 82 69 <span class="c"># Initialize class ...</span> | |
| 83 <a name="_InitializeClass-"></a> 70 <span class="k">sub </span><span class="m">_InitializeClass</span> <span class="s">{</span> | |
| 84 71 <span class="c">#Class name...</span> | |
| 85 72 <span class="i">$ClassName</span> = <span class="w">__PACKAGE__</span><span class="sc">;</span> | |
| 86 73 | |
| 87 74 <span class="c"># Descriptor names...</span> | |
| 88 75 <span class="i">@DescriptorNames</span> = <span class="s">(</span><span class="q">'MolecularVolume'</span><span class="s">)</span><span class="sc">;</span> | |
| 89 76 | |
| 90 77 <span class="c"># Initialize the data hash. It'll be loaded on demand later...</span> | |
| 91 78 <span class="i">%VDWAtomRadiiAndVolumesDataMap</span> = <span class="s">(</span><span class="s">)</span><span class="sc">;</span> | |
| 92 79 | |
| 93 80 <span class="s">}</span> | |
| 94 81 | |
| 95 82 <span class="c"># Get descriptor names as an array.</span> | |
| 96 83 <span class="c">#</span> | |
| 97 84 <span class="c"># This functionality can be either invoked as a class function or an</span> | |
| 98 85 <span class="c"># object method.</span> | |
| 99 86 <span class="c">#</span> | |
| 100 <a name="GetDescriptorNames-"></a> 87 <span class="k">sub </span><span class="m">GetDescriptorNames</span> <span class="s">{</span> | |
| 101 88 <span class="k">return</span> <span class="i">@DescriptorNames</span><span class="sc">;</span> | |
| 102 89 <span class="s">}</span> | |
| 103 90 | |
| 104 91 <span class="c"># Initialize object data...</span> | |
| 105 92 <span class="c">#</span> | |
| 106 <a name="_InitializeMolecularVolumeDescriptors-"></a> 93 <span class="k">sub </span><span class="m">_InitializeMolecularVolumeDescriptors</span> <span class="s">{</span> | |
| 107 94 <span class="k">my</span><span class="s">(</span><span class="i">$This</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> | |
| 108 95 | |
| 109 96 <span class="c"># Type of MolecularDescriptor...</span> | |
| 110 97 <span class="i">$This</span>->{<span class="w">Type</span>} = <span class="q">'MolecularVolume'</span><span class="sc">;</span> | |
| 111 98 | |
| 112 99 <span class="c"># Intialize descriptor names and values...</span> | |
| 113 100 <span class="i">$This</span><span class="i">->_InitializeDescriptorNamesAndValues</span><span class="s">(</span><span class="i">@DescriptorNames</span><span class="s">)</span><span class="sc">;</span> | |
| 114 101 | |
| 115 102 <span class="k">return</span> <span class="i">$This</span><span class="sc">;</span> | |
| 116 103 <span class="s">}</span> | |
| 117 104 | |
| 118 105 <span class="c"># Initialize object properties...</span> | |
| 119 106 <span class="c">#</span> | |
| 120 <a name="_InitializeMolecularVolumeDescriptorsProperties-"></a> 107 <span class="k">sub </span><span class="m">_InitializeMolecularVolumeDescriptorsProperties</span> <span class="s">{</span> | |
| 121 108 <span class="k">my</span><span class="s">(</span><span class="i">$This</span><span class="cm">,</span> <span class="i">%NamesAndValues</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> | |
| 122 109 | |
| 123 110 <span class="k">my</span><span class="s">(</span><span class="i">$Name</span><span class="cm">,</span> <span class="i">$Value</span><span class="cm">,</span> <span class="i">$MethodName</span><span class="s">)</span><span class="sc">;</span> | |
| 124 111 <span class="k">while</span> <span class="s">(</span><span class="s">(</span><span class="i">$Name</span><span class="cm">,</span> <span class="i">$Value</span><span class="s">)</span> = <span class="k">each</span> <span class="i">%NamesAndValues</span><span class="s">)</span> <span class="s">{</span> | |
| 125 112 <span class="i">$MethodName</span> = <span class="q">"Set${Name}"</span><span class="sc">;</span> | |
| 126 113 <span class="i">$This</span><span class="i">->$MethodName</span><span class="s">(</span><span class="i">$Value</span><span class="s">)</span><span class="sc">;</span> | |
| 127 114 <span class="s">}</span> | |
| 128 115 | |
| 129 116 <span class="k">return</span> <span class="i">$This</span><span class="sc">;</span> | |
| 130 117 <span class="s">}</span> | |
| 131 118 | |
| 132 119 <span class="c"># Get VDW atom data loaded from VDW atom radii and and volumes data file as</span> | |
| 133 120 <span class="c"># a reference to hash with the following hash data format:</span> | |
| 134 121 <span class="c">#</span> | |
| 135 122 <span class="c"># @{$VDWAtomRadiiAndVolumesDataMap{AtomTypes}} - Array of all possible atom type symbols for all atoms</span> | |
| 136 123 <span class="c"># @{$VDWAtomRadiiAndVolumesDataMap->{ColLabels}} - Array of column labels</span> | |
| 137 124 <span class="c"># %{$VDWAtomRadiiAndVolumesDataMap->{DataCol<Num>}} - Hash keys pair: <DataCol<Num>, AtomType></span> | |
| 138 125 <span class="c">#</span> | |
| 139 126 <span class="c"># This functionality can be either invoked as a class function or an</span> | |
| 140 127 <span class="c"># object method.</span> | |
| 141 128 <span class="c">#</span> | |
| 142 <a name="GetVDWAtomRadiiAndVolumesData-"></a> 129 <span class="k">sub </span><span class="m">GetVDWAtomRadiiAndVolumesData</span> <span class="s">{</span> | |
| 143 130 | |
| 144 131 <span class="c"># Make sure data is loaded...</span> | |
| 145 132 <span class="i">_CheckAndLoadVDWAtomRadiiAndVolumesData</span><span class="s">(</span><span class="s">)</span><span class="sc">;</span> | |
| 146 133 | |
| 147 134 <span class="k">return</span> \<span class="i">%VDWAtomRadiiAndVolumesDataMap</span><span class="sc">;</span> | |
| 148 135 <span class="s">}</span> | |
| 149 136 | |
| 150 137 <span class="c"># Calculate van der Waals molecular volume [ Ref 93 ] of a molecule using</span> | |
| 151 138 <span class="c"># atomic and bonds contributions...</span> | |
| 152 139 <span class="c">#</span> | |
| 153 140 <span class="c"># van der Waals molecular volume (A**3/molecule) is defined as:</span> | |
| 154 141 <span class="c">#</span> | |
| 155 142 <span class="c"># vdwMolecularVolume = SumOfAtomicVDWVolumeContributions - 5.92 * NumOfBonds</span> | |
| 156 143 <span class="c"># - 14.7 * NumOfAromaticRings - 3.8 * NumOfNonAromaticRings</span> | |
| 157 144 <span class="c">#</span> | |
| 158 145 <span class="c"># Methodology:</span> | |
| 159 146 <span class="c"># . Add up van der Waals atom volumne of all atoms</span> | |
| 160 147 <span class="c"># . Calculate molecular volume by correcting sum of atom volumes for num of</span> | |
| 161 148 <span class="c"># bonds and rings</span> | |
| 162 149 <span class="c">#</span> | |
| 163 150 <span class="c"># Caveats:</span> | |
| 164 151 <span class="c"># . All hydrogens must be added to molecule before calling GenerateDescriptors.</span> | |
| 165 152 <span class="c">#</span> | |
| 166 <a name="GenerateDescriptors-"></a> 153 <span class="k">sub </span><span class="m">GenerateDescriptors</span> <span class="s">{</span> | |
| 167 154 <span class="k">my</span><span class="s">(</span><span class="i">$This</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> | |
| 168 155 | |
| 169 156 <span class="c"># Initialize descriptor values...</span> | |
| 170 157 <span class="i">$This</span><span class="i">->_InitializeDescriptorValues</span><span class="s">(</span><span class="s">)</span><span class="sc">;</span> | |
| 171 158 | |
| 172 159 <span class="c"># Check availability of molecule...</span> | |
| 173 160 <span class="k">if</span> <span class="s">(</span>!<span class="i">$This</span>->{<span class="w">Molecule</span>}<span class="s">)</span> <span class="s">{</span> | |
| 174 161 <span class="w">carp</span> <span class="q">"Warning: ${ClassName}->GenerateDescriptors: $This->{Type} molecular descriptors generation didn't succeed: Molecule data is not available: Molecule object hasn't been set..."</span><span class="sc">;</span> | |
| 175 162 <span class="k">return</span> <span class="k">undef</span><span class="sc">;</span> | |
| 176 163 <span class="s">}</span> | |
| 177 164 | |
| 178 165 <span class="c"># Calculate descriptor values...</span> | |
| 179 166 <span class="k">if</span> <span class="s">(</span>!<span class="i">$This</span><span class="i">->_CalculateDescriptorValues</span><span class="s">(</span><span class="s">)</span><span class="s">)</span> <span class="s">{</span> | |
| 180 167 <span class="w">carp</span> <span class="q">"Warning: ${ClassName}->GenerateDescriptors: $This->{Type} molecular descriptors generation didn't succeed: Couldn't calculate MolecularVolume values: van der Waals atom volume data is not available for all atoms..."</span><span class="sc">;</span> | |
| 181 168 <span class="k">return</span> <span class="k">undef</span><span class="sc">;</span> | |
| 182 169 <span class="s">}</span> | |
| 183 170 | |
| 184 171 <span class="c"># Set final descriptor values...</span> | |
| 185 172 <span class="i">$This</span><span class="i">->_SetFinalDescriptorValues</span><span class="s">(</span><span class="s">)</span><span class="sc">;</span> | |
| 186 173 | |
| 187 174 <span class="k">return</span> <span class="i">$This</span><span class="sc">;</span> | |
| 188 175 <span class="s">}</span> | |
| 189 176 | |
| 190 177 <span class="c"># Calculate MolecularVolume value...</span> | |
| 191 178 <span class="c">#</span> | |
| 192 <a name="_CalculateDescriptorValues-"></a> 179 <span class="k">sub </span><span class="m">_CalculateDescriptorValues</span> <span class="s">{</span> | |
| 193 180 <span class="k">my</span><span class="s">(</span><span class="i">$This</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> | |
| 194 181 <span class="k">my</span><span class="s">(</span><span class="i">$Atom</span><span class="cm">,</span> <span class="i">$AtomID</span><span class="cm">,</span> <span class="i">$AtomSymbol</span><span class="cm">,</span> <span class="i">$SumOfVDWAtomVolumes</span><span class="cm">,</span> <span class="i">$Molecule</span><span class="cm">,</span> <span class="i">$MolecularVolume</span><span class="cm">,</span> <span class="i">$NumOfBonds</span><span class="cm">,</span> <span class="i">$NumOfAromaticRings</span><span class="cm">,</span> <span class="i">$NumOfNonAromaticRings</span><span class="cm">,</span> <span class="i">$VDWAtomRadiiAndVolumesDataMapRef</span><span class="s">)</span><span class="sc">;</span> | |
| 195 182 | |
| 196 183 <span class="i">$MolecularVolume</span> = <span class="n">0</span><span class="sc">;</span> | |
| 197 184 | |
| 198 185 <span class="i">$VDWAtomRadiiAndVolumesDataMapRef</span> = <span class="i">$This</span><span class="i">->GetVDWAtomRadiiAndVolumesData</span><span class="s">(</span><span class="s">)</span><span class="sc">;</span> | |
| 199 186 <span class="i">$Molecule</span> = <span class="i">$This</span>->{<span class="w">Molecule</span>}<span class="sc">;</span> | |
| 200 187 | |
| 201 188 <span class="c"># Calculate atom volumes contribution to molecular volume...</span> | |
| 202 189 <span class="c">#</span> | |
| 203 190 <span class="i">$SumOfVDWAtomVolumes</span> = <span class="n">0</span><span class="sc">;</span> | |
| 204 191 | |
| 205 192 <span class="j">ATOM:</span> <span class="k">for</span> <span class="i">$Atom</span> <span class="s">(</span><span class="i">$Molecule</span><span class="i">->GetAtoms</span><span class="s">(</span><span class="s">)</span><span class="s">)</span> <span class="s">{</span> | |
| 206 193 <span class="i">$AtomID</span> = <span class="i">$Atom</span><span class="i">->GetID</span><span class="s">(</span><span class="s">)</span><span class="sc">;</span> | |
| 207 194 <span class="i">$AtomSymbol</span> = <span class="i">$Atom</span><span class="i">->GetAtomSymbol</span><span class="s">(</span><span class="s">)</span><span class="sc">;</span> | |
| 208 195 | |
| 209 196 <span class="c"># Make sure van der Waals atom volume is available...</span> | |
| 210 197 <span class="k">if</span> <span class="s">(</span>!<span class="k">exists</span> <span class="i">$VDWAtomRadiiAndVolumesDataMap</span>{<span class="w">DataCol3</span>}{<span class="i">$AtomSymbol</span>}<span class="s">)</span> <span class="s">{</span> | |
| 211 198 <span class="k">return</span> <span class="k">undef</span><span class="sc">;</span> | |
| 212 199 <span class="s">}</span> | |
| 213 200 <span class="i">$SumOfVDWAtomVolumes</span> += <span class="i">$VDWAtomRadiiAndVolumesDataMapRef</span>->{<span class="w">DataCol3</span>}{<span class="i">$AtomSymbol</span>}<span class="sc">;</span> | |
| 214 201 <span class="s">}</span> | |
| 215 202 | |
| 216 203 <span class="i">$NumOfBonds</span> = <span class="i">$Molecule</span><span class="i">->GetNumOfBonds</span><span class="s">(</span><span class="s">)</span><span class="sc">;</span> | |
| 217 204 <span class="i">$NumOfAromaticRings</span> = <span class="i">$Molecule</span><span class="i">->GetNumOfAromaticRings</span><span class="s">(</span><span class="s">)</span><span class="sc">;</span> | |
| 218 205 <span class="i">$NumOfNonAromaticRings</span> = <span class="i">$Molecule</span><span class="i">->GetNumOfRings</span><span class="s">(</span><span class="s">)</span> - <span class="i">$NumOfAromaticRings</span><span class="sc">;</span> | |
| 219 206 | |
| 220 207 <span class="c"># Apply correction for bonds and rings...</span> | |
| 221 208 <span class="i">$MolecularVolume</span> = <span class="i">$SumOfVDWAtomVolumes</span> - <span class="n">5.92</span> * <span class="i">$NumOfBonds</span> - <span class="n">14.7</span> * <span class="i">$NumOfAromaticRings</span> - <span class="n">3.8</span> * <span class="i">$NumOfNonAromaticRings</span><span class="sc">;</span> | |
| 222 209 | |
| 223 210 <span class="c"># Track the calculated values...</span> | |
| 224 211 <span class="i">$This</span>->{<span class="w">MolecularVolume</span>} = <span class="i">MathUtil::round</span><span class="s">(</span><span class="i">$MolecularVolume</span><span class="cm">,</span> <span class="n">2</span><span class="s">)</span><span class="sc">;</span> | |
| 225 212 | |
| 226 213 <span class="k">return</span> <span class="i">$This</span><span class="sc">;</span> | |
| 227 214 <span class="s">}</span> | |
| 228 215 | |
| 229 216 <span class="c"># Setup final descriptor values...</span> | |
| 230 217 <span class="c">#</span> | |
| 231 <a name="_SetFinalDescriptorValues-"></a> 218 <span class="k">sub </span><span class="m">_SetFinalDescriptorValues</span> <span class="s">{</span> | |
| 232 219 <span class="k">my</span><span class="s">(</span><span class="i">$This</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> | |
| 233 220 | |
| 234 221 <span class="i">$This</span>->{<span class="w">DescriptorsGenerated</span>} = <span class="n">1</span><span class="sc">;</span> | |
| 235 222 | |
| 236 223 <span class="i">$This</span><span class="i">->SetDescriptorValues</span><span class="s">(</span><span class="i">$This</span>->{<span class="w">MolecularVolume</span>}<span class="s">)</span><span class="sc">;</span> | |
| 237 224 | |
| 238 225 <span class="k">return</span> <span class="i">$This</span><span class="sc">;</span> | |
| 239 226 <span class="s">}</span> | |
| 240 227 | |
| 241 228 <span class="c"># Return a string containg data for MolecularVolumeDescriptors object...</span> | |
| 242 229 <span class="c">#</span> | |
| 243 <a name="StringifyMolecularVolumeDescriptors-"></a> 230 <span class="k">sub </span><span class="m">StringifyMolecularVolumeDescriptors</span> <span class="s">{</span> | |
| 244 231 <span class="k">my</span><span class="s">(</span><span class="i">$This</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> | |
| 245 232 <span class="k">my</span><span class="s">(</span><span class="i">$MolecularVolumeDescriptorsString</span><span class="s">)</span><span class="sc">;</span> | |
| 246 233 | |
| 247 234 <span class="i">$MolecularVolumeDescriptorsString</span> = <span class="q">"MolecularDescriptorType: $This->{Type}; "</span> . <span class="i">$This</span><span class="i">->_StringifyDescriptorNamesAndValues</span><span class="s">(</span><span class="s">)</span><span class="sc">;</span> | |
| 248 235 | |
| 249 236 <span class="k">return</span> <span class="i">$MolecularVolumeDescriptorsString</span><span class="sc">;</span> | |
| 250 237 <span class="s">}</span> | |
| 251 238 | |
| 252 239 <span class="c"># Is it a MolecularVolumeDescriptors object?</span> | |
| 253 <a name="_IsMolecularVolumeDescriptors-"></a> 240 <span class="k">sub </span><span class="m">_IsMolecularVolumeDescriptors</span> <span class="s">{</span> | |
| 254 241 <span class="k">my</span><span class="s">(</span><span class="i">$Object</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> | |
| 255 242 | |
| 256 243 <span class="k">return</span> <span class="s">(</span><span class="i">Scalar::Util::blessed</span><span class="s">(</span><span class="i">$Object</span><span class="s">)</span> && <span class="i">$Object</span><span class="i">->isa</span><span class="s">(</span><span class="i">$ClassName</span><span class="s">)</span><span class="s">)</span> ? <span class="n">1</span> <span class="co">:</span> <span class="n">0</span><span class="sc">;</span> | |
| 257 244 <span class="s">}</span> | |
| 258 245 | |
| 259 246 <span class="c"># Check and load van der Waals atom radii and volumes data...</span> | |
| 260 247 <span class="c">#</span> | |
| 261 <a name="_CheckAndLoadVDWAtomRadiiAndVolumesData-"></a> 248 <span class="k">sub </span><span class="m">_CheckAndLoadVDWAtomRadiiAndVolumesData</span> <span class="s">{</span> | |
| 262 249 | |
| 263 250 <span class="c"># Is it already loaded?</span> | |
| 264 251 <span class="k">if</span> <span class="s">(</span><span class="k">exists</span> <span class="i">$VDWAtomRadiiAndVolumesDataMap</span>{<span class="w">AtomTypes</span>}<span class="s">)</span> <span class="s">{</span> | |
| 265 252 <span class="k">return</span><span class="sc">;</span> | |
| 266 253 <span class="s">}</span> | |
| 267 254 | |
| 268 255 <span class="i">_LoadVDWAtomRadiiAndVolumesData</span><span class="s">(</span><span class="s">)</span><span class="sc">;</span> | |
| 269 256 <span class="s">}</span> | |
| 270 257 | |
| 271 258 <span class="c"># Initialize van der Waals atom radii and volumes data from the file...</span> | |
| 272 259 <span class="c">#</span> | |
| 273 260 <span class="c"># Format:</span> | |
| 274 261 <span class="c">#</span> | |
| 275 262 <span class="c"># "AtomTypeSymbol","VDWAtomRadius(A)","VDWAtomVolume(A**3)/molecule"</span> | |
| 276 263 <span class="c"># "H","1.20","7.24"</span> | |
| 277 264 <span class="c"># "He","1.40","11.49"</span> | |
| 278 265 <span class="c">#</span> | |
| 279 <a name="_LoadVDWAtomRadiiAndVolumesData-"></a> 266 <span class="k">sub </span><span class="m">_LoadVDWAtomRadiiAndVolumesData</span> <span class="s">{</span> | |
| 280 267 <span class="k">my</span><span class="s">(</span><span class="i">$VDWAtomDataFile</span><span class="cm">,</span> <span class="i">$MayaChemToolsLibDir</span><span class="s">)</span><span class="sc">;</span> | |
| 281 268 | |
| 282 269 <span class="i">$MayaChemToolsLibDir</span> = <span class="i">FileUtil::GetMayaChemToolsLibDirName</span><span class="s">(</span><span class="s">)</span><span class="sc">;</span> | |
| 283 270 | |
| 284 271 <span class="i">$VDWAtomDataFile</span> = <span class="q">"$MayaChemToolsLibDir"</span> . <span class="q">"/data/VDWAtomRadiiAndVolumes.csv"</span><span class="sc">;</span> | |
| 285 272 <span class="k">if</span> <span class="s">(</span>! <span class="k">-e</span> <span class="q">"$VDWAtomDataFile"</span><span class="s">)</span> <span class="s">{</span> | |
| 286 273 <span class="w">croak</span> <span class="q">"Error: MayaChemTools package file, $VDWAtomDataFile, is missing: Possible installation problems..."</span><span class="sc">;</span> | |
| 287 274 <span class="s">}</span> | |
| 288 275 | |
| 289 276 <span class="i">%VDWAtomRadiiAndVolumesDataMap</span> = <span class="s">(</span><span class="s">)</span><span class="sc">;</span> | |
| 290 277 <span class="i">AtomTypes::AtomTypes::LoadAtomTypesData</span><span class="s">(</span><span class="i">$VDWAtomDataFile</span><span class="cm">,</span> \<span class="i">%VDWAtomRadiiAndVolumesDataMap</span><span class="s">)</span><span class="sc">;</span> | |
| 291 278 <span class="s">}</span><span class="sc">;</span> | |
| 292 279 | |
| 293 <a name="EOF-"></a></pre> | |
| 294 <p> </p> | |
| 295 <br /> | |
| 296 <center> | |
| 297 <img src="../../../images/h2o2.png"> | |
| 298 </center> | |
| 299 </body> | |
| 300 </html> |