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|  | 13 <pre> | 
|  | 14 <a name="package-Fingerprints::TopologicalAtomPairsFingerprints-"></a>   1 <span class="k">package </span><span class="i">Fingerprints::TopologicalAtomPairsFingerprints</span><span class="sc">;</span> | 
|  | 15    2 <span class="c">#</span> | 
|  | 16    3 <span class="c"># $RCSfile: TopologicalAtomPairsFingerprints.pm,v $</span> | 
|  | 17    4 <span class="c"># $Date: 2015/02/28 20:48:54 $</span> | 
|  | 18    5 <span class="c"># $Revision: 1.30 $</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">Fingerprints::Fingerprints</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">Molecule</span><span class="sc">;</span> | 
|  | 48   35 <span class="k">use</span> <span class="w">AtomTypes::AtomicInvariantsAtomTypes</span><span class="sc">;</span> | 
|  | 49   36 <span class="k">use</span> <span class="w">AtomTypes::DREIDINGAtomTypes</span><span class="sc">;</span> | 
|  | 50   37 <span class="k">use</span> <span class="w">AtomTypes::EStateAtomTypes</span><span class="sc">;</span> | 
|  | 51   38 <span class="k">use</span> <span class="w">AtomTypes::FunctionalClassAtomTypes</span><span class="sc">;</span> | 
|  | 52   39 <span class="k">use</span> <span class="w">AtomTypes::MMFF94AtomTypes</span><span class="sc">;</span> | 
|  | 53   40 <span class="k">use</span> <span class="w">AtomTypes::SLogPAtomTypes</span><span class="sc">;</span> | 
|  | 54   41 <span class="k">use</span> <span class="w">AtomTypes::SYBYLAtomTypes</span><span class="sc">;</span> | 
|  | 55   42 <span class="k">use</span> <span class="w">AtomTypes::TPSAAtomTypes</span><span class="sc">;</span> | 
|  | 56   43 <span class="k">use</span> <span class="w">AtomTypes::UFFAtomTypes</span><span class="sc">;</span> | 
|  | 57   44 | 
|  | 58   45 <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> | 
|  | 59   46 | 
|  | 60   47 <span class="i">@ISA</span> = <span class="q">qw(Fingerprints::Fingerprints Exporter)</span><span class="sc">;</span> | 
|  | 61   48 <span class="i">@EXPORT</span> = <span class="q">qw()</span><span class="sc">;</span> | 
|  | 62   49 <span class="i">@EXPORT_OK</span> = <span class="q">qw()</span><span class="sc">;</span> | 
|  | 63   50 | 
|  | 64   51 <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> | 
|  | 65   52 | 
|  | 66   53 <span class="c"># Setup class variables...</span> | 
|  | 67   54 <span class="k">my</span><span class="s">(</span><span class="i">$ClassName</span><span class="s">)</span><span class="sc">;</span> | 
|  | 68   55 <span class="i">_InitializeClass</span><span class="s">(</span><span class="s">)</span><span class="sc">;</span> | 
|  | 69   56 | 
|  | 70   57 <span class="c"># Overload Perl functions...</span> | 
|  | 71   58 <span class="k">use</span> <span class="w">overload</span> <span class="q">'""'</span> <span class="cm">=></span> <span class="q">'StringifyTopologicalAtomPairsFingerprints'</span><span class="sc">;</span> | 
|  | 72   59 | 
|  | 73   60 <span class="c"># Class constructor...</span> | 
|  | 74 <a name="new-"></a>  61 <span class="k">sub </span><span class="m">new</span> <span class="s">{</span> | 
|  | 75   62   <span class="k">my</span><span class="s">(</span><span class="i">$Class</span><span class="cm">,</span> <span class="i">%NamesAndValues</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> | 
|  | 76   63 | 
|  | 77   64   <span class="c"># Initialize object...</span> | 
|  | 78   65   <span class="k">my</span> <span class="i">$This</span> = <span class="i">$Class</span><span class="i">->SUPER::new</span><span class="s">(</span><span class="s">)</span><span class="sc">;</span> | 
|  | 79   66   <span class="k">bless</span> <span class="i">$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> | 
|  | 80   67   <span class="i">$This</span><span class="i">->_InitializeTopologicalAtomPairsFingerprints</span><span class="s">(</span><span class="s">)</span><span class="sc">;</span> | 
|  | 81   68 | 
|  | 82   69   <span class="i">$This</span><span class="i">->_InitializeTopologicalAtomPairsFingerprintsProperties</span><span class="s">(</span><span class="i">%NamesAndValues</span><span class="s">)</span><span class="sc">;</span> | 
|  | 83   70 | 
|  | 84   71   <span class="k">return</span> <span class="i">$This</span><span class="sc">;</span> | 
|  | 85   72 <span class="s">}</span> | 
|  | 86   73 | 
|  | 87   74 <span class="c"># Initialize object data...</span> | 
|  | 88   75 <span class="c">#</span> | 
|  | 89 <a name="_InitializeTopologicalAtomPairsFingerprints-"></a>  76 <span class="k">sub </span><span class="m">_InitializeTopologicalAtomPairsFingerprints</span> <span class="s">{</span> | 
|  | 90   77   <span class="k">my</span><span class="s">(</span><span class="i">$This</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> | 
|  | 91   78 | 
|  | 92   79   <span class="c"># Type of fingerprint...</span> | 
|  | 93   80   <span class="i">$This</span>->{<span class="w">Type</span>} = <span class="q">'TopologicalAtomPairs'</span><span class="sc">;</span> | 
|  | 94   81 | 
|  | 95   82   <span class="c"># Type of vector...</span> | 
|  | 96   83   <span class="i">$This</span>->{<span class="w">VectorType</span>} = <span class="q">'FingerprintsVector'</span><span class="sc">;</span> | 
|  | 97   84 | 
|  | 98   85   <span class="c"># Type of FingerprintsVector...</span> | 
|  | 99   86   <span class="i">$This</span>->{<span class="w">FingerprintsVectorType</span>} = <span class="q">'NumericalValues'</span><span class="sc">;</span> | 
|  | 100   87 | 
|  | 101   88   <span class="c"># Minimum and maximum bond distance between atom paris...</span> | 
|  | 102   89   <span class="i">$This</span>->{<span class="w">MinDistance</span>} = <span class="n">1</span><span class="sc">;</span> | 
|  | 103   90   <span class="i">$This</span>->{<span class="w">MaxDistance</span>} = <span class="n">10</span><span class="sc">;</span> | 
|  | 104   91 | 
|  | 105   92   <span class="c"># Atom identifier type to use for atom IDs in atom pairs...</span> | 
|  | 106   93   <span class="c">#</span> | 
|  | 107   94   <span class="c"># Currently supported values are: AtomicInvariantsAtomTypes, DREIDINGAtomTypes,</span> | 
|  | 108   95   <span class="c"># EStateAtomTypes, FunctionalClassAtomTypes, MMFF94AtomTypes, SLogPAtomTypes,</span> | 
|  | 109   96   <span class="c"># SYBYLAtomTypes, TPSAAtomTypes, UFFAtomTypes</span> | 
|  | 110   97   <span class="c">#</span> | 
|  | 111   98   <span class="i">$This</span>->{<span class="w">AtomIdentifierType</span>} = <span class="q">''</span><span class="sc">;</span> | 
|  | 112   99 | 
|  | 113  100   <span class="c"># Atom types assigned to each heavy atom...</span> | 
|  | 114  101   <span class="c">#</span> | 
|  | 115  102   <span class="i">%</span>{<span class="i">$This</span>->{<span class="w">AssignedAtomTypes</span>}} = <span class="s">(</span><span class="s">)</span><span class="sc">;</span> | 
|  | 116  103 | 
|  | 117  104   <span class="c"># All atom pairs between minimum and maximum distance...</span> | 
|  | 118  105   <span class="c">#</span> | 
|  | 119  106   <span class="i">@</span>{<span class="i">$This</span>->{<span class="w">AtomPairsIDs</span>}} = <span class="s">(</span><span class="s">)</span><span class="sc">;</span> | 
|  | 120  107   <span class="i">%</span>{<span class="i">$This</span>->{<span class="w">AtomPairsCount</span>}} = <span class="s">(</span><span class="s">)</span><span class="sc">;</span> | 
|  | 121  108 <span class="s">}</span> | 
|  | 122  109 | 
|  | 123  110 <span class="c"># Initialize class ...</span> | 
|  | 124 <a name="_InitializeClass-"></a> 111 <span class="k">sub </span><span class="m">_InitializeClass</span> <span class="s">{</span> | 
|  | 125  112   <span class="c">#Class name...</span> | 
|  | 126  113   <span class="i">$ClassName</span> = <span class="w">__PACKAGE__</span><span class="sc">;</span> | 
|  | 127  114 <span class="s">}</span> | 
|  | 128  115 | 
|  | 129  116 <span class="c"># Initialize object properties....</span> | 
|  | 130 <a name="_InitializeTopologicalAtomPairsFingerprintsProperties-"></a> 117 <span class="k">sub </span><span class="m">_InitializeTopologicalAtomPairsFingerprintsProperties</span> <span class="s">{</span> | 
|  | 131  118   <span class="k">my</span><span class="s">(</span><span class="i">$This</span><span class="cm">,</span> <span class="i">%NamesAndValues</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> | 
|  | 132  119 | 
|  | 133  120   <span class="k">my</span><span class="s">(</span><span class="i">$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> | 
|  | 134  121   <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> | 
|  | 135  122     <span class="i">$MethodName</span> = <span class="q">"Set${Name}"</span><span class="sc">;</span> | 
|  | 136  123     <span class="i">$This</span><span class="i">->$MethodName</span><span class="s">(</span><span class="i">$Value</span><span class="s">)</span><span class="sc">;</span> | 
|  | 137  124   <span class="s">}</span> | 
|  | 138  125 | 
|  | 139  126   <span class="c"># Make sure molecule object was specified...</span> | 
|  | 140  127   <span class="k">if</span> <span class="s">(</span>!<span class="k">exists</span> <span class="i">$NamesAndValues</span>{<span class="w">Molecule</span>}<span class="s">)</span> <span class="s">{</span> | 
|  | 141  128     <span class="w">croak</span> <span class="q">"Error: ${ClassName}->New: Object can't be instantiated without specifying molecule..."</span><span class="sc">;</span> | 
|  | 142  129   <span class="s">}</span> | 
|  | 143  130   <span class="k">if</span> <span class="s">(</span>!<span class="k">exists</span> <span class="i">$NamesAndValues</span>{<span class="w">AtomIdentifierType</span>}<span class="s">)</span> <span class="s">{</span> | 
|  | 144  131     <span class="w">croak</span> <span class="q">"Error: ${ClassName}->New: Object can't be instantiated without specifying AtomIdentifierType..."</span><span class="sc">;</span> | 
|  | 145  132   <span class="s">}</span> | 
|  | 146  133 | 
|  | 147  134   <span class="i">$This</span><span class="i">->_InitializeFingerprintsVector</span><span class="s">(</span><span class="s">)</span><span class="sc">;</span> | 
|  | 148  135 | 
|  | 149  136   <span class="k">return</span> <span class="i">$This</span><span class="sc">;</span> | 
|  | 150  137 <span class="s">}</span> | 
|  | 151  138 | 
|  | 152  139 <span class="c"># Set minimum distance for atom pairs...</span> | 
|  | 153  140 <span class="c">#</span> | 
|  | 154 <a name="SetMinDistance-"></a> 141 <span class="k">sub </span><span class="m">SetMinDistance</span> <span class="s">{</span> | 
|  | 155  142   <span class="k">my</span><span class="s">(</span><span class="i">$This</span><span class="cm">,</span> <span class="i">$Value</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> | 
|  | 156  143 | 
|  | 157  144   <span class="k">if</span> <span class="s">(</span>!<span class="i">TextUtil::IsPositiveInteger</span><span class="s">(</span><span class="i">$Value</span><span class="s">)</span><span class="s">)</span> <span class="s">{</span> | 
|  | 158  145     <span class="w">croak</span> <span class="q">"Error: ${ClassName}->SetMinDistance: MinDistance value, $Value, is not valid:  It must be a positive integer..."</span><span class="sc">;</span> | 
|  | 159  146   <span class="s">}</span> | 
|  | 160  147   <span class="i">$This</span>->{<span class="w">MinDistance</span>} = <span class="i">$Value</span><span class="sc">;</span> | 
|  | 161  148 | 
|  | 162  149   <span class="k">return</span> <span class="i">$This</span><span class="sc">;</span> | 
|  | 163  150 <span class="s">}</span> | 
|  | 164  151 | 
|  | 165  152 <span class="c"># Set maximum distance for atom pairs...</span> | 
|  | 166  153 <span class="c">#</span> | 
|  | 167 <a name="SetMaxDistance-"></a> 154 <span class="k">sub </span><span class="m">SetMaxDistance</span> <span class="s">{</span> | 
|  | 168  155   <span class="k">my</span><span class="s">(</span><span class="i">$This</span><span class="cm">,</span> <span class="i">$Value</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> | 
|  | 169  156 | 
|  | 170  157   <span class="k">if</span> <span class="s">(</span>!<span class="i">TextUtil::IsPositiveInteger</span><span class="s">(</span><span class="i">$Value</span><span class="s">)</span><span class="s">)</span> <span class="s">{</span> | 
|  | 171  158     <span class="w">croak</span> <span class="q">"Error: ${ClassName}->SetMaxDistance: MaxDistance value, $Value, is not valid:  It must be a positive integer..."</span><span class="sc">;</span> | 
|  | 172  159   <span class="s">}</span> | 
|  | 173  160   <span class="i">$This</span>->{<span class="w">MaxDistance</span>} = <span class="i">$Value</span><span class="sc">;</span> | 
|  | 174  161 | 
|  | 175  162   <span class="k">return</span> <span class="i">$This</span><span class="sc">;</span> | 
|  | 176  163 <span class="s">}</span> | 
|  | 177  164 | 
|  | 178  165 <span class="c"># Set atom identifier type..</span> | 
|  | 179  166 <span class="c">#</span> | 
|  | 180 <a name="SetAtomIdentifierType-"></a> 167 <span class="k">sub </span><span class="m">SetAtomIdentifierType</span> <span class="s">{</span> | 
|  | 181  168   <span class="k">my</span><span class="s">(</span><span class="i">$This</span><span class="cm">,</span> <span class="i">$IdentifierType</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> | 
|  | 182  169 | 
|  | 183  170   <span class="k">if</span> <span class="s">(</span><span class="i">$IdentifierType</span> !~ <span class="q">/^(AtomicInvariantsAtomTypes|DREIDINGAtomTypes|EStateAtomTypes|FunctionalClassAtomTypes|MMFF94AtomTypes|SLogPAtomTypes|SYBYLAtomTypes|TPSAAtomTypes|UFFAtomTypes)$/i</span><span class="s">)</span> <span class="s">{</span> | 
|  | 184  171     <span class="w">croak</span> <span class="q">"Error: ${ClassName}->SetAtomIdentifierType: Specified value, $IdentifierType, for AtomIdentifierType is not vaild. Supported types in current release of MayaChemTools: AtomicInvariantsAtomTypes, DREIDINGAtomTypes, EStateAtomTypes, FunctionalClassAtomTypes, MMFF94AtomTypes, SLogPAtomTypes, SYBYLAtomTypes, TPSAAtomTypes, and UFFAtomTypes."</span><span class="sc">;</span> | 
|  | 185  172   <span class="s">}</span> | 
|  | 186  173 | 
|  | 187  174   <span class="k">if</span> <span class="s">(</span><span class="i">$This</span>->{<span class="w">AtomIdentifierType</span>}<span class="s">)</span> <span class="s">{</span> | 
|  | 188  175     <span class="w">croak</span> <span class="q">"Error: ${ClassName}->SeAtomIdentifierType: Can't change intial atom identifier type:  It's already set..."</span><span class="sc">;</span> | 
|  | 189  176   <span class="s">}</span> | 
|  | 190  177 | 
|  | 191  178   <span class="i">$This</span>->{<span class="w">AtomIdentifierType</span>} = <span class="i">$IdentifierType</span><span class="sc">;</span> | 
|  | 192  179 | 
|  | 193  180   <span class="c"># Initialize atom identifier type information...</span> | 
|  | 194  181   <span class="i">$This</span><span class="i">->_InitializeAtomIdentifierTypeInformation</span><span class="s">(</span><span class="s">)</span><span class="sc">;</span> | 
|  | 195  182 | 
|  | 196  183   <span class="k">return</span> <span class="i">$This</span><span class="sc">;</span> | 
|  | 197  184 <span class="s">}</span> | 
|  | 198  185 | 
|  | 199  186 <span class="c"># Generate fingerprints description...</span> | 
|  | 200  187 <span class="c">#</span> | 
|  | 201 <a name="GetDescription-"></a> 188 <span class="k">sub </span><span class="m">GetDescription</span> <span class="s">{</span> | 
|  | 202  189   <span class="k">my</span><span class="s">(</span><span class="i">$This</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> | 
|  | 203  190 | 
|  | 204  191   <span class="c"># Is description explicity set?</span> | 
|  | 205  192   <span class="k">if</span> <span class="s">(</span><span class="k">exists</span> <span class="i">$This</span>->{<span class="w">Description</span>}<span class="s">)</span> <span class="s">{</span> | 
|  | 206  193     <span class="k">return</span> <span class="i">$This</span>->{<span class="w">Description</span>}<span class="sc">;</span> | 
|  | 207  194   <span class="s">}</span> | 
|  | 208  195 | 
|  | 209  196   <span class="c"># Generate fingerprints description...</span> | 
|  | 210  197 | 
|  | 211  198   <span class="k">return</span> <span class="q">"$This->{Type}:$This->{AtomIdentifierType}:MinDistance$This->{MinDistance}:MaxDistance$This->{MaxDistance}"</span><span class="sc">;</span> | 
|  | 212  199 <span class="s">}</span> | 
|  | 213  200 | 
|  | 214  201 <span class="c"># Generate topological atom pairs [ Ref 57, Ref 59, Ref 72 ] fingerprints...</span> | 
|  | 215  202 <span class="c">#</span> | 
|  | 216  203 <span class="c"># Methodology:</span> | 
|  | 217  204 <span class="c">#   . Generate a distance matrix.</span> | 
|  | 218  205 <span class="c">#   . Assign atom types to all the atoms.</span> | 
|  | 219  206 <span class="c">#   . Using distance matrix and atom types, count occurrence of</span> | 
|  | 220  207 <span class="c">#     unique atom pairs within specified distance range - It corresponds to the</span> | 
|  | 221  208 <span class="c">#     correlation-vector for the atom pairs.</span> | 
|  | 222  209 <span class="c">#</span> | 
|  | 223  210 <span class="c"># Notes:</span> | 
|  | 224  211 <span class="c">#   . Hydrogen atoms are ignored during the fingerprint generation.</span> | 
|  | 225  212 <span class="c">#</span> | 
|  | 226 <a name="GenerateFingerprints-"></a> 213 <span class="k">sub </span><span class="m">GenerateFingerprints</span> <span class="s">{</span> | 
|  | 227  214   <span class="k">my</span><span class="s">(</span><span class="i">$This</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> | 
|  | 228  215 | 
|  | 229  216   <span class="k">if</span> <span class="s">(</span><span class="i">$This</span>->{<span class="w">MinDistance</span>} > <span class="i">$This</span>->{<span class="w">MaxDistance</span>}<span class="s">)</span> <span class="s">{</span> | 
|  | 230  217     <span class="w">croak</span> <span class="q">"Error: ${ClassName}->GenerateTopologicalAtomPairsFingerprints: No fingerpritns generated: MinDistance, $This->{MinDistance}, must be <= MaxDistance, $This->{MaxDistance}..."</span><span class="sc">;</span> | 
|  | 231  218   <span class="s">}</span> | 
|  | 232  219 | 
|  | 233  220   <span class="c"># Cache appropriate molecule data...</span> | 
|  | 234  221   <span class="i">$This</span><span class="i">->_SetupMoleculeDataCache</span><span class="s">(</span><span class="s">)</span><span class="sc">;</span> | 
|  | 235  222 | 
|  | 236  223   <span class="c"># Generate distance matrix...</span> | 
|  | 237  224   <span class="k">if</span> <span class="s">(</span>!<span class="i">$This</span><span class="i">->_SetupDistanceMatrix</span><span class="s">(</span><span class="s">)</span><span class="s">)</span> <span class="s">{</span> | 
|  | 238  225     <span class="w">carp</span> <span class="q">"Warning: ${ClassName}->GenerateFingerprints: $This->{AtomIdentifierType} fingerprints generation didn't succeed: Couldn't generate distance matrix..."</span><span class="sc">;</span> | 
|  | 239  226     <span class="k">return</span> <span class="i">$This</span><span class="sc">;</span> | 
|  | 240  227   <span class="s">}</span> | 
|  | 241  228 | 
|  | 242  229   <span class="c"># Assign atom types to all heavy atoms...</span> | 
|  | 243  230   <span class="k">if</span> <span class="s">(</span>!<span class="i">$This</span><span class="i">->_AssignAtomTypes</span><span class="s">(</span><span class="s">)</span><span class="s">)</span> <span class="s">{</span> | 
|  | 244  231     <span class="w">carp</span> <span class="q">"Warning: ${ClassName}->GenerateFingerprints: $This->{AtomIdentifierType} fingerprints generation didn't succeed: Couldn't assign valid $This->{AtomIdentifierType} to all atoms..."</span><span class="sc">;</span> | 
|  | 245  232     <span class="k">return</span> <span class="i">$This</span><span class="sc">;</span> | 
|  | 246  233   <span class="s">}</span> | 
|  | 247  234 | 
|  | 248  235   <span class="c"># Intialize values of toplogical atom pairs...</span> | 
|  | 249  236   <span class="i">$This</span><span class="i">->_InitializeToplogicalAtomPairs</span><span class="s">(</span><span class="s">)</span><span class="sc">;</span> | 
|  | 250  237 | 
|  | 251  238   <span class="c"># Count atom pairs...</span> | 
|  | 252  239   <span class="i">$This</span><span class="i">->_GenerateAndCountAtomPairs</span><span class="s">(</span><span class="s">)</span><span class="sc">;</span> | 
|  | 253  240 | 
|  | 254  241   <span class="c"># Set final fingerprints...</span> | 
|  | 255  242   <span class="i">$This</span><span class="i">->_SetFinalFingerprints</span><span class="s">(</span><span class="s">)</span><span class="sc">;</span> | 
|  | 256  243 | 
|  | 257  244   <span class="c"># Clear cached molecule data...</span> | 
|  | 258  245   <span class="i">$This</span><span class="i">->_ClearMoleculeDataCache</span><span class="s">(</span><span class="s">)</span><span class="sc">;</span> | 
|  | 259  246 | 
|  | 260  247   <span class="k">return</span> <span class="i">$This</span><span class="sc">;</span> | 
|  | 261  248 <span class="s">}</span> | 
|  | 262  249 | 
|  | 263  250 <span class="c"># Setup distance matrix...</span> | 
|  | 264  251 <span class="c">#</span> | 
|  | 265 <a name="_SetupDistanceMatrix-"></a> 252 <span class="k">sub </span><span class="m">_SetupDistanceMatrix</span> <span class="s">{</span> | 
|  | 266  253   <span class="k">my</span><span class="s">(</span><span class="i">$This</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> | 
|  | 267  254 | 
|  | 268  255   <span class="i">$This</span>->{<span class="w">DistanceMatrix</span>} = <span class="i">$This</span><span class="i">->GetMolecule</span><span class="s">(</span><span class="s">)</span><span class="i">->GetDistanceMatrix</span><span class="s">(</span><span class="s">)</span><span class="sc">;</span> | 
|  | 269  256 | 
|  | 270  257   <span class="k">if</span> <span class="s">(</span>!<span class="i">$This</span>->{<span class="w">DistanceMatrix</span>}<span class="s">)</span> <span class="s">{</span> | 
|  | 271  258     <span class="k">return</span> <span class="k">undef</span><span class="sc">;</span> | 
|  | 272  259   <span class="s">}</span> | 
|  | 273  260 | 
|  | 274  261   <span class="k">return</span> <span class="i">$This</span><span class="sc">;</span> | 
|  | 275  262 <span class="s">}</span> | 
|  | 276  263 | 
|  | 277  264 <span class="c"># Assign appropriate atom types to all heavy atoms...</span> | 
|  | 278  265 <span class="c">#</span> | 
|  | 279 <a name="_AssignAtomTypes-"></a> 266 <span class="k">sub </span><span class="m">_AssignAtomTypes</span> <span class="s">{</span> | 
|  | 280  267   <span class="k">my</span><span class="s">(</span><span class="i">$This</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> | 
|  | 281  268   <span class="k">my</span><span class="s">(</span><span class="i">$SpecifiedAtomTypes</span><span class="cm">,</span> <span class="i">$Atom</span><span class="cm">,</span> <span class="i">$AtomID</span><span class="cm">,</span> <span class="i">$IgnoreHydrogens</span><span class="s">)</span><span class="sc">;</span> | 
|  | 282  269 | 
|  | 283  270   <span class="i">%</span>{<span class="i">$This</span>->{<span class="w">AssignedAtomTypes</span>}} = <span class="s">(</span><span class="s">)</span><span class="sc">;</span> | 
|  | 284  271   <span class="i">$IgnoreHydrogens</span> = <span class="n">1</span><span class="sc">;</span> | 
|  | 285  272 | 
|  | 286  273   <span class="i">$SpecifiedAtomTypes</span> = <span class="k">undef</span><span class="sc">;</span> | 
|  | 287  274 | 
|  | 288  275   <span class="j">IDENTIFIERTYPE:</span> <span class="s">{</span> | 
|  | 289  276     <span class="k">if</span> <span class="s">(</span><span class="i">$This</span>->{<span class="w">AtomIdentifierType</span>} =~ <span class="q">/^AtomicInvariantsAtomTypes$/i</span><span class="s">)</span> <span class="s">{</span> | 
|  | 290  277       <span class="i">$SpecifiedAtomTypes</span> = <span class="i">new</span> <span class="i">AtomTypes::AtomicInvariantsAtomTypes</span><span class="s">(</span><span class="q">'Molecule'</span> <span class="cm">=></span> <span class="i">$This</span>->{<span class="w">Molecule</span>}<span class="cm">,</span> <span class="q">'IgnoreHydrogens'</span> <span class="cm">=></span> <span class="i">$IgnoreHydrogens</span><span class="cm">,</span> <span class="q">'AtomicInvariantsToUse'</span> <span class="cm">=></span> <span class="i">$This</span>->{<span class="w">AtomicInvariantsToUse</span>}<span class="s">)</span><span class="sc">;</span> | 
|  | 291  278       <span class="k">last</span> <span class="j">IDENTIFIERTYPE</span><span class="sc">;</span> | 
|  | 292  279     <span class="s">}</span> | 
|  | 293  280 | 
|  | 294  281     <span class="k">if</span> <span class="s">(</span><span class="i">$This</span>->{<span class="w">AtomIdentifierType</span>} =~ <span class="q">/^DREIDINGAtomTypes$/i</span><span class="s">)</span> <span class="s">{</span> | 
|  | 295  282       <span class="i">$SpecifiedAtomTypes</span> = <span class="i">new</span> <span class="i">AtomTypes::DREIDINGAtomTypes</span><span class="s">(</span><span class="q">'Molecule'</span> <span class="cm">=></span> <span class="i">$This</span>->{<span class="w">Molecule</span>}<span class="cm">,</span> <span class="q">'IgnoreHydrogens'</span> <span class="cm">=></span> <span class="i">$IgnoreHydrogens</span><span class="s">)</span><span class="sc">;</span> | 
|  | 296  283       <span class="k">last</span> <span class="j">IDENTIFIERTYPE</span><span class="sc">;</span> | 
|  | 297  284     <span class="s">}</span> | 
|  | 298  285 | 
|  | 299  286     <span class="k">if</span> <span class="s">(</span><span class="i">$This</span>->{<span class="w">AtomIdentifierType</span>} =~ <span class="q">/^EStateAtomTypes$/i</span><span class="s">)</span> <span class="s">{</span> | 
|  | 300  287       <span class="i">$SpecifiedAtomTypes</span> = <span class="i">new</span> <span class="i">AtomTypes::EStateAtomTypes</span><span class="s">(</span><span class="q">'Molecule'</span> <span class="cm">=></span> <span class="i">$This</span>->{<span class="w">Molecule</span>}<span class="cm">,</span> <span class="q">'IgnoreHydrogens'</span> <span class="cm">=></span> <span class="i">$IgnoreHydrogens</span><span class="s">)</span><span class="sc">;</span> | 
|  | 301  288       <span class="k">last</span> <span class="j">IDENTIFIERTYPE</span><span class="sc">;</span> | 
|  | 302  289     <span class="s">}</span> | 
|  | 303  290 | 
|  | 304  291     <span class="k">if</span> <span class="s">(</span><span class="i">$This</span>->{<span class="w">AtomIdentifierType</span>} =~ <span class="q">/^FunctionalClassAtomTypes$/i</span><span class="s">)</span> <span class="s">{</span> | 
|  | 305  292       <span class="i">$SpecifiedAtomTypes</span> = <span class="i">new</span> <span class="i">AtomTypes::FunctionalClassAtomTypes</span><span class="s">(</span><span class="q">'Molecule'</span> <span class="cm">=></span> <span class="i">$This</span>->{<span class="w">Molecule</span>}<span class="cm">,</span> <span class="q">'IgnoreHydrogens'</span> <span class="cm">=></span> <span class="i">$IgnoreHydrogens</span><span class="cm">,</span> <span class="q">'FunctionalClassesToUse'</span> <span class="cm">=></span> <span class="i">$This</span>->{<span class="w">FunctionalClassesToUse</span>}<span class="s">)</span><span class="sc">;</span> | 
|  | 306  293       <span class="k">last</span> <span class="j">IDENTIFIERTYPE</span><span class="sc">;</span> | 
|  | 307  294     <span class="s">}</span> | 
|  | 308  295 | 
|  | 309  296     <span class="k">if</span> <span class="s">(</span><span class="i">$This</span>->{<span class="w">AtomIdentifierType</span>} =~ <span class="q">/^MMFF94AtomTypes$/i</span><span class="s">)</span> <span class="s">{</span> | 
|  | 310  297       <span class="i">$SpecifiedAtomTypes</span> = <span class="i">new</span> <span class="i">AtomTypes::MMFF94AtomTypes</span><span class="s">(</span><span class="q">'Molecule'</span> <span class="cm">=></span> <span class="i">$This</span>->{<span class="w">Molecule</span>}<span class="cm">,</span> <span class="q">'IgnoreHydrogens'</span> <span class="cm">=></span> <span class="i">$IgnoreHydrogens</span><span class="s">)</span><span class="sc">;</span> | 
|  | 311  298       <span class="k">last</span> <span class="j">IDENTIFIERTYPE</span><span class="sc">;</span> | 
|  | 312  299     <span class="s">}</span> | 
|  | 313  300 | 
|  | 314  301     <span class="k">if</span> <span class="s">(</span><span class="i">$This</span>->{<span class="w">AtomIdentifierType</span>} =~ <span class="q">/^SLogPAtomTypes$/i</span><span class="s">)</span> <span class="s">{</span> | 
|  | 315  302       <span class="i">$SpecifiedAtomTypes</span> = <span class="i">new</span> <span class="i">AtomTypes::SLogPAtomTypes</span><span class="s">(</span><span class="q">'Molecule'</span> <span class="cm">=></span> <span class="i">$This</span>->{<span class="w">Molecule</span>}<span class="cm">,</span> <span class="q">'IgnoreHydrogens'</span> <span class="cm">=></span> <span class="i">$IgnoreHydrogens</span><span class="s">)</span><span class="sc">;</span> | 
|  | 316  303       <span class="k">last</span> <span class="j">IDENTIFIERTYPE</span><span class="sc">;</span> | 
|  | 317  304     <span class="s">}</span> | 
|  | 318  305     <span class="k">if</span> <span class="s">(</span><span class="i">$This</span>->{<span class="w">AtomIdentifierType</span>} =~ <span class="q">/^SYBYLAtomTypes$/i</span><span class="s">)</span> <span class="s">{</span> | 
|  | 319  306       <span class="i">$SpecifiedAtomTypes</span> = <span class="i">new</span> <span class="i">AtomTypes::SYBYLAtomTypes</span><span class="s">(</span><span class="q">'Molecule'</span> <span class="cm">=></span> <span class="i">$This</span>->{<span class="w">Molecule</span>}<span class="cm">,</span> <span class="q">'IgnoreHydrogens'</span> <span class="cm">=></span> <span class="i">$IgnoreHydrogens</span><span class="s">)</span><span class="sc">;</span> | 
|  | 320  307       <span class="k">last</span> <span class="j">IDENTIFIERTYPE</span><span class="sc">;</span> | 
|  | 321  308     <span class="s">}</span> | 
|  | 322  309 | 
|  | 323  310     <span class="k">if</span> <span class="s">(</span><span class="i">$This</span>->{<span class="w">AtomIdentifierType</span>} =~ <span class="q">/^TPSAAtomTypes$/i</span><span class="s">)</span> <span class="s">{</span> | 
|  | 324  311       <span class="i">$SpecifiedAtomTypes</span> = <span class="i">new</span> <span class="i">AtomTypes::TPSAAtomTypes</span><span class="s">(</span><span class="q">'Molecule'</span> <span class="cm">=></span> <span class="i">$This</span>->{<span class="w">Molecule</span>}<span class="cm">,</span> <span class="q">'IgnorePhosphorus'</span> <span class="cm">=></span> <span class="n">0</span><span class="cm">,</span> <span class="q">'IgnoreSulfur'</span> <span class="cm">=></span> <span class="n">0</span><span class="s">)</span><span class="sc">;</span> | 
|  | 325  312       <span class="k">last</span> <span class="j">IDENTIFIERTYPE</span><span class="sc">;</span> | 
|  | 326  313     <span class="s">}</span> | 
|  | 327  314 | 
|  | 328  315     <span class="k">if</span> <span class="s">(</span><span class="i">$This</span>->{<span class="w">AtomIdentifierType</span>} =~ <span class="q">/^UFFAtomTypes$/i</span><span class="s">)</span> <span class="s">{</span> | 
|  | 329  316       <span class="i">$SpecifiedAtomTypes</span> = <span class="i">new</span> <span class="i">AtomTypes::UFFAtomTypes</span><span class="s">(</span><span class="q">'Molecule'</span> <span class="cm">=></span> <span class="i">$This</span>->{<span class="w">Molecule</span>}<span class="cm">,</span> <span class="q">'IgnoreHydrogens'</span> <span class="cm">=></span> <span class="i">$IgnoreHydrogens</span><span class="s">)</span><span class="sc">;</span> | 
|  | 330  317       <span class="k">last</span> <span class="j">IDENTIFIERTYPE</span><span class="sc">;</span> | 
|  | 331  318     <span class="s">}</span> | 
|  | 332  319 | 
|  | 333  320     <span class="w">croak</span> <span class="q">"Error: ${ClassName}->_AssignAtomTypes: Unknown atom indentifier type $This->{AtomIdentifierType}..."</span><span class="sc">;</span> | 
|  | 334  321   <span class="s">}</span> | 
|  | 335  322 | 
|  | 336  323   <span class="c"># Assign atom types...</span> | 
|  | 337  324   <span class="i">$SpecifiedAtomTypes</span><span class="i">->AssignAtomTypes</span><span class="s">(</span><span class="s">)</span><span class="sc">;</span> | 
|  | 338  325 | 
|  | 339  326   <span class="c"># Make sure atom types assignment is successful...</span> | 
|  | 340  327   <span class="k">if</span> <span class="s">(</span>!<span class="i">$SpecifiedAtomTypes</span><span class="i">->IsAtomTypesAssignmentSuccessful</span><span class="s">(</span><span class="s">)</span><span class="s">)</span> <span class="s">{</span> | 
|  | 341  328     <span class="k">return</span> <span class="k">undef</span><span class="sc">;</span> | 
|  | 342  329   <span class="s">}</span> | 
|  | 343  330 | 
|  | 344  331   <span class="c"># Collect assigned atom types...</span> | 
|  | 345  332   <span class="j">ATOM:</span> <span class="k">for</span> <span class="i">$Atom</span> <span class="s">(</span><span class="i">@</span>{<span class="i">$This</span>->{<span class="w">Atoms</span>}}<span class="s">)</span> <span class="s">{</span> | 
|  | 346  333     <span class="k">if</span> <span class="s">(</span><span class="i">$Atom</span><span class="i">->IsHydrogen</span><span class="s">(</span><span class="s">)</span><span class="s">)</span> <span class="s">{</span> | 
|  | 347  334       <span class="k">next</span> <span class="j">ATOM</span><span class="sc">;</span> | 
|  | 348  335     <span class="s">}</span> | 
|  | 349  336     <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> | 
|  | 350  337     <span class="i">$This</span>->{<span class="w">AssignedAtomTypes</span>}{<span class="i">$AtomID</span>} = <span class="i">$SpecifiedAtomTypes</span><span class="i">->GetAtomType</span><span class="s">(</span><span class="i">$Atom</span><span class="s">)</span><span class="sc">;</span> | 
|  | 351  338   <span class="s">}</span> | 
|  | 352  339 | 
|  | 353  340   <span class="k">return</span> <span class="i">$This</span><span class="sc">;</span> | 
|  | 354  341 <span class="s">}</span> | 
|  | 355  342 | 
|  | 356  343 <span class="c"># Initialize topological atom pairs between specified distance range...</span> | 
|  | 357  344 <span class="c">#</span> | 
|  | 358 <a name="_InitializeToplogicalAtomPairs-"></a> 345 <span class="k">sub </span><span class="m">_InitializeToplogicalAtomPairs</span> <span class="s">{</span> | 
|  | 359  346   <span class="k">my</span><span class="s">(</span><span class="i">$This</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> | 
|  | 360  347   <span class="k">my</span><span class="s">(</span><span class="i">$Distance</span><span class="s">)</span><span class="sc">;</span> | 
|  | 361  348 | 
|  | 362  349   <span class="i">@</span>{<span class="i">$This</span>->{<span class="w">AtomPairsIDs</span>}} = <span class="s">(</span><span class="s">)</span><span class="sc">;</span> | 
|  | 363  350   <span class="i">%</span>{<span class="i">$This</span>->{<span class="w">AtomPairsCount</span>}} = <span class="s">(</span><span class="s">)</span><span class="sc">;</span> | 
|  | 364  351 | 
|  | 365  352   <span class="k">for</span> <span class="i">$Distance</span> <span class="s">(</span><span class="i">$This</span>->{<span class="w">MinDistance</span>} .. <span class="i">$This</span>->{<span class="w">MaxDistance</span>}<span class="s">)</span> <span class="s">{</span> | 
|  | 366  353     <span class="i">%</span>{<span class="i">$This</span>->{<span class="w">AtomPairsCount</span>}{<span class="i">$Distance</span>}} = <span class="s">(</span><span class="s">)</span><span class="sc">;</span> | 
|  | 367  354   <span class="s">}</span> | 
|  | 368  355 | 
|  | 369  356   <span class="k">return</span> <span class="i">$This</span><span class="sc">;</span> | 
|  | 370  357 <span class="s">}</span> | 
|  | 371  358 | 
|  | 372  359 <span class="c"># Count atom pairs between mininum and maximum distance at each</span> | 
|  | 373  360 <span class="c"># distance using distance matrix and atom types assiged to each heavy</span> | 
|  | 374  361 <span class="c"># atom.</span> | 
|  | 375  362 <span class="c">#</span> | 
|  | 376  363 <span class="c"># Notes:</span> | 
|  | 377  364 <span class="c">#   . The row and column indices of distance matrix correspond to atom indices.</span> | 
|  | 378  365 <span class="c">#   . Distance value of BigNumber implies the atom is not connected to any other atom.</span> | 
|  | 379  366 <span class="c">#   . Due to symmetric nature of distance matrix, only upper or lower triangular matrix</span> | 
|  | 380  367 <span class="c">#     needs to be processed during identification and count of atom pairs.</span> | 
|  | 381  368 <span class="c">#</span> | 
|  | 382 <a name="_GenerateAndCountAtomPairs-"></a> 369 <span class="k">sub </span><span class="m">_GenerateAndCountAtomPairs</span> <span class="s">{</span> | 
|  | 383  370   <span class="k">my</span><span class="s">(</span><span class="i">$This</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> | 
|  | 384  371 | 
|  | 385  372   <span class="k">my</span><span class="s">(</span><span class="i">$NumOfRows</span><span class="cm">,</span> <span class="i">$NumOfCols</span><span class="cm">,</span> <span class="i">$RowIndex</span><span class="cm">,</span> <span class="i">$ColIndex</span><span class="cm">,</span> <span class="i">$DistanceMatrix</span><span class="cm">,</span> <span class="i">$Distance</span><span class="cm">,</span> <span class="i">$AtomID1</span><span class="cm">,</span> <span class="i">$AtomID2</span><span class="cm">,</span> <span class="i">$AtomType1</span><span class="cm">,</span> <span class="i">$AtomType2</span><span class="cm">,</span> <span class="i">$SkipIndexCheck</span><span class="cm">,</span> <span class="i">$CountIncrement</span><span class="s">)</span><span class="sc">;</span> | 
|  | 386  373 | 
|  | 387  374   <span class="i">$DistanceMatrix</span> = <span class="i">$This</span>->{<span class="w">DistanceMatrix</span>}<span class="sc">;</span> | 
|  | 388  375   <span class="s">(</span><span class="i">$NumOfRows</span><span class="cm">,</span> <span class="i">$NumOfCols</span><span class="s">)</span> = <span class="i">$DistanceMatrix</span><span class="i">->GetSize</span><span class="s">(</span><span class="s">)</span><span class="sc">;</span> | 
|  | 389  376   <span class="i">$SkipIndexCheck</span> = <span class="n">0</span><span class="sc">;</span> | 
|  | 390  377 | 
|  | 391  378   <span class="j">ROWINDEX:</span> <span class="k">for</span> <span class="i">$RowIndex</span> <span class="s">(</span><span class="n">0</span> .. <span class="s">(</span><span class="i">$NumOfRows</span> - <span class="n">1</span><span class="s">)</span> <span class="s">)</span> <span class="s">{</span> | 
|  | 392  379     <span class="i">$AtomID1</span> = <span class="i">$This</span>->{<span class="w">AtomIndexToID</span>}{<span class="i">$RowIndex</span>}<span class="sc">;</span> | 
|  | 393  380     <span class="k">if</span> <span class="s">(</span> !<span class="s">(</span><span class="k">exists</span><span class="s">(</span><span class="i">$This</span>->{<span class="w">AssignedAtomTypes</span>}{<span class="i">$AtomID1</span>}<span class="s">)</span><span class="s">)</span> <span class="s">)</span> <span class="s">{</span> | 
|  | 394  381       <span class="k">next</span> <span class="j">ROWINDEX</span><span class="sc">;</span> | 
|  | 395  382     <span class="s">}</span> | 
|  | 396  383     <span class="i">$AtomType1</span> = <span class="i">$This</span>->{<span class="w">AssignedAtomTypes</span>}{<span class="i">$AtomID1</span>}<span class="sc">;</span> | 
|  | 397  384 | 
|  | 398  385     <span class="j">COLINDEX:</span> <span class="k">for</span> <span class="i">$ColIndex</span> <span class="s">(</span><span class="s">(</span><span class="i">$RowIndex</span> + <span class="n">1</span><span class="s">)</span> .. <span class="s">(</span><span class="i">$NumOfCols</span> - <span class="n">1</span><span class="s">)</span> <span class="s">)</span> <span class="s">{</span> | 
|  | 399  386       <span class="i">$AtomID2</span> = <span class="i">$This</span>->{<span class="w">AtomIndexToID</span>}{<span class="i">$ColIndex</span>}<span class="sc">;</span> | 
|  | 400  387       <span class="k">if</span> <span class="s">(</span> !<span class="s">(</span><span class="k">exists</span><span class="s">(</span><span class="i">$This</span>->{<span class="w">AssignedAtomTypes</span>}{<span class="i">$AtomID2</span>}<span class="s">)</span><span class="s">)</span> <span class="s">)</span> <span class="s">{</span> | 
|  | 401  388         <span class="k">next</span> <span class="j">COLINDEX</span><span class="sc">;</span> | 
|  | 402  389       <span class="s">}</span> | 
|  | 403  390       <span class="i">$Distance</span> = <span class="i">$DistanceMatrix</span><span class="i">->GetValue</span><span class="s">(</span><span class="i">$RowIndex</span><span class="cm">,</span> <span class="i">$ColIndex</span><span class="cm">,</span> <span class="i">$SkipIndexCheck</span><span class="s">)</span><span class="sc">;</span> | 
|  | 404  391       <span class="k">if</span> <span class="s">(</span><span class="i">$Distance</span> < <span class="i">$This</span>->{<span class="w">MinDistance</span>} || <span class="i">$Distance</span> > <span class="i">$This</span>->{<span class="w">MaxDistance</span>}<span class="s">)</span> <span class="s">{</span> | 
|  | 405  392         <span class="k">next</span> <span class="j">COLINDEX</span><span class="sc">;</span> | 
|  | 406  393       <span class="s">}</span> | 
|  | 407  394       <span class="i">$AtomType2</span> = <span class="i">$This</span>->{<span class="w">AssignedAtomTypes</span>}{<span class="i">$AtomID2</span>}<span class="sc">;</span> | 
|  | 408  395 | 
|  | 409  396       <span class="k">if</span> <span class="s">(</span><span class="i">$AtomType1</span> <span class="k">le</span> <span class="i">$AtomType2</span><span class="s">)</span> <span class="s">{</span> | 
|  | 410  397         <span class="i">$This</span><span class="i">->_SetAtomPairsCount</span><span class="s">(</span><span class="i">$Distance</span><span class="cm">,</span> <span class="i">$AtomType1</span><span class="cm">,</span> <span class="i">$AtomType2</span><span class="s">)</span><span class="sc">;</span> | 
|  | 411  398       <span class="s">}</span> | 
|  | 412  399       <span class="k">else</span> <span class="s">{</span> | 
|  | 413  400         <span class="i">$This</span><span class="i">->_SetAtomPairsCount</span><span class="s">(</span><span class="i">$Distance</span><span class="cm">,</span> <span class="i">$AtomType2</span><span class="cm">,</span> <span class="i">$AtomType1</span><span class="s">)</span><span class="sc">;</span> | 
|  | 414  401       <span class="s">}</span> | 
|  | 415  402     <span class="s">}</span> | 
|  | 416  403   <span class="s">}</span> | 
|  | 417  404   <span class="k">return</span> <span class="i">$This</span><span class="sc">;</span> | 
|  | 418  405 <span class="s">}</span> | 
|  | 419  406 | 
|  | 420  407 <span class="c"># Set atom paris count for a specific atom ID pair at a specific distance...</span> | 
|  | 421  408 <span class="c">#</span> | 
|  | 422 <a name="_SetAtomPairsCount-"></a> 409 <span class="k">sub </span><span class="m">_SetAtomPairsCount</span> <span class="s">{</span> | 
|  | 423  410   <span class="k">my</span><span class="s">(</span><span class="i">$This</span><span class="cm">,</span> <span class="i">$Distance</span><span class="cm">,</span> <span class="i">$AtomType1</span><span class="cm">,</span> <span class="i">$AtomType2</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> | 
|  | 424  411 | 
|  | 425  412   <span class="k">if</span> <span class="s">(</span>! <span class="k">exists</span> <span class="i">$This</span>->{<span class="w">AtomPairsCount</span>}{<span class="i">$Distance</span>}{<span class="i">$AtomType1</span>}<span class="s">)</span> <span class="s">{</span> | 
|  | 426  413     <span class="i">%</span>{<span class="i">$This</span>->{<span class="w">AtomPairsCount</span>}{<span class="i">$Distance</span>}{<span class="i">$AtomType1</span>}} = <span class="s">(</span><span class="s">)</span><span class="sc">;</span> | 
|  | 427  414     <span class="i">$This</span>->{<span class="w">AtomPairsCount</span>}{<span class="i">$Distance</span>}{<span class="i">$AtomType1</span>}{<span class="i">$AtomType2</span>} = <span class="n">1</span><span class="sc">;</span> | 
|  | 428  415     <span class="k">return</span> <span class="i">$This</span><span class="sc">;</span> | 
|  | 429  416   <span class="s">}</span> | 
|  | 430  417 | 
|  | 431  418   <span class="k">if</span> <span class="s">(</span><span class="k">exists</span> <span class="i">$This</span>->{<span class="w">AtomPairsCount</span>}{<span class="i">$Distance</span>}{<span class="i">$AtomType1</span>}{<span class="i">$AtomType2</span>}<span class="s">)</span> <span class="s">{</span> | 
|  | 432  419     <span class="i">$This</span>->{<span class="w">AtomPairsCount</span>}{<span class="i">$Distance</span>}{<span class="i">$AtomType1</span>}{<span class="i">$AtomType2</span>} += <span class="n">1</span><span class="sc">;</span> | 
|  | 433  420   <span class="s">}</span> | 
|  | 434  421   <span class="k">else</span> <span class="s">{</span> | 
|  | 435  422     <span class="i">$This</span>->{<span class="w">AtomPairsCount</span>}{<span class="i">$Distance</span>}{<span class="i">$AtomType1</span>}{<span class="i">$AtomType2</span>} = <span class="n">1</span><span class="sc">;</span> | 
|  | 436  423   <span class="s">}</span> | 
|  | 437  424 | 
|  | 438  425   <span class="k">return</span> <span class="i">$This</span><span class="sc">;</span> | 
|  | 439  426 <span class="s">}</span> | 
|  | 440  427 | 
|  | 441  428 <span class="c"># Set final fingerpritns vector...</span> | 
|  | 442  429 <span class="c">#</span> | 
|  | 443 <a name="_SetFinalFingerprints-"></a> 430 <span class="k">sub </span><span class="m">_SetFinalFingerprints</span> <span class="s">{</span> | 
|  | 444  431   <span class="k">my</span><span class="s">(</span><span class="i">$This</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> | 
|  | 445  432   <span class="k">my</span><span class="s">(</span><span class="i">$Distance</span><span class="cm">,</span> <span class="i">$AtomType1</span><span class="cm">,</span> <span class="i">$AtomType2</span><span class="cm">,</span> <span class="i">$Value</span><span class="cm">,</span> <span class="i">@Values</span><span class="s">)</span><span class="sc">;</span> | 
|  | 446  433 | 
|  | 447  434   <span class="c"># Mark successful generation of fingerprints...</span> | 
|  | 448  435   <span class="i">$This</span>->{<span class="w">FingerprintsGenerated</span>} = <span class="n">1</span><span class="sc">;</span> | 
|  | 449  436 | 
|  | 450  437   <span class="i">@Values</span> = <span class="s">(</span><span class="s">)</span><span class="sc">;</span> | 
|  | 451  438   <span class="i">@</span>{<span class="i">$This</span>->{<span class="w">AtomPairsIDs</span>}} = <span class="s">(</span><span class="s">)</span><span class="sc">;</span> | 
|  | 452  439 | 
|  | 453  440   <span class="k">for</span> <span class="i">$Distance</span> <span class="s">(</span><span class="i">$This</span>->{<span class="w">MinDistance</span>} .. <span class="i">$This</span>->{<span class="w">MaxDistance</span>}<span class="s">)</span> <span class="s">{</span> | 
|  | 454  441     <span class="k">for</span> <span class="i">$AtomType1</span> <span class="s">(</span><span class="k">sort</span> <span class="k">keys</span> <span class="i">%</span>{<span class="i">$This</span>->{<span class="w">AtomPairsCount</span>}{<span class="i">$Distance</span>}} <span class="s">)</span> <span class="s">{</span> | 
|  | 455  442       <span class="k">for</span> <span class="i">$AtomType2</span> <span class="s">(</span><span class="k">sort</span> <span class="k">keys</span> <span class="i">%</span>{<span class="i">$This</span>->{<span class="w">AtomPairsCount</span>}{<span class="i">$Distance</span>}{<span class="i">$AtomType1</span>}} <span class="s">)</span> <span class="s">{</span> | 
|  | 456  443         <span class="k">push</span> <span class="i">@</span>{<span class="i">$This</span>->{<span class="w">AtomPairsIDs</span>}}<span class="cm">,</span> <span class="q">"${AtomType1}-D${Distance}-${AtomType2}"</span><span class="sc">;</span> | 
|  | 457  444         <span class="i">$Value</span> = <span class="i">$This</span>->{<span class="w">AtomPairsCount</span>}{<span class="i">$Distance</span>}{<span class="i">$AtomType1</span>}{<span class="i">$AtomType2</span>}<span class="sc">;</span> | 
|  | 458  445         <span class="k">push</span> <span class="i">@Values</span><span class="cm">,</span> <span class="i">$Value</span><span class="sc">;</span> | 
|  | 459  446       <span class="s">}</span> | 
|  | 460  447     <span class="s">}</span> | 
|  | 461  448   <span class="s">}</span> | 
|  | 462  449 | 
|  | 463  450   <span class="c"># Add AtomPairsIDs and values to fingerprint vector...</span> | 
|  | 464  451   <span class="i">$This</span>->{<span class="w">FingerprintsVector</span>}<span class="i">->AddValueIDs</span><span class="s">(</span>\<span class="i">@</span>{<span class="i">$This</span>->{<span class="w">AtomPairsIDs</span>}}<span class="s">)</span><span class="sc">;</span> | 
|  | 465  452   <span class="i">$This</span>->{<span class="w">FingerprintsVector</span>}<span class="i">->AddValues</span><span class="s">(</span>\<span class="i">@Values</span><span class="s">)</span><span class="sc">;</span> | 
|  | 466  453 | 
|  | 467  454   <span class="k">return</span> <span class="i">$This</span><span class="sc">;</span> | 
|  | 468  455 <span class="s">}</span> | 
|  | 469  456 | 
|  | 470  457 <span class="c"># Get atom pair IDs corresponding to atom pairs count values in fingerprint</span> | 
|  | 471  458 <span class="c"># vector as an array or reference to an array...</span> | 
|  | 472  459 <span class="c">#</span> | 
|  | 473  460 <span class="c"># AtomPairIDs list differes in molecules and is generated during finalization</span> | 
|  | 474  461 <span class="c"># of fingerprints to make sure the fingerprint vector containing count values</span> | 
|  | 475  462 <span class="c"># matches the atom pairs array.</span> | 
|  | 476  463 <span class="c">#</span> | 
|  | 477 <a name="GetAtomPairIDs-"></a> 464 <span class="k">sub </span><span class="m">GetAtomPairIDs</span> <span class="s">{</span> | 
|  | 478  465   <span class="k">my</span><span class="s">(</span><span class="i">$This</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> | 
|  | 479  466 | 
|  | 480  467   <span class="k">return</span> <span class="k">wantarray</span> ? <span class="i">@</span>{<span class="i">$This</span>->{<span class="w">AtomPairsIDs</span>}} <span class="co">:</span> \<span class="i">@</span>{<span class="i">$This</span>->{<span class="w">AtomPairsIDs</span>}}<span class="sc">;</span> | 
|  | 481  468 <span class="s">}</span> | 
|  | 482  469 | 
|  | 483  470 <span class="c"># Cache  appropriate molecule data...</span> | 
|  | 484  471 <span class="c">#</span> | 
|  | 485 <a name="_SetupMoleculeDataCache-"></a> 472 <span class="k">sub </span><span class="m">_SetupMoleculeDataCache</span> <span class="s">{</span> | 
|  | 486  473   <span class="k">my</span><span class="s">(</span><span class="i">$This</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> | 
|  | 487  474 | 
|  | 488  475   <span class="c"># Get all atoms including hydrogens to correctly map atom indices to atom IDs for</span> | 
|  | 489  476   <span class="c"># usage of distance matrix. The hydrogen atoms are ignored during processing...</span> | 
|  | 490  477   <span class="c">#</span> | 
|  | 491  478   <span class="i">@</span>{<span class="i">$This</span>->{<span class="w">Atoms</span>}} = <span class="i">$This</span><span class="i">->GetMolecule</span><span class="s">(</span><span class="s">)</span><span class="i">->GetAtoms</span><span class="s">(</span><span class="s">)</span><span class="sc">;</span> | 
|  | 492  479 | 
|  | 493  480   <span class="c"># Get all atom IDs...</span> | 
|  | 494  481   <span class="k">my</span><span class="s">(</span><span class="i">@AtomIDs</span><span class="s">)</span><span class="sc">;</span> | 
|  | 495  482   <span class="i">@AtomIDs</span> = <span class="s">(</span><span class="s">)</span><span class="sc">;</span> | 
|  | 496  483   <span class="i">@AtomIDs</span> =  <span class="k">map</span> <span class="s">{</span> <span class="i">$_</span><span class="i">->GetID</span><span class="s">(</span><span class="s">)</span> <span class="s">}</span> <span class="i">@</span>{<span class="i">$This</span>->{<span class="w">Atoms</span>}}<span class="sc">;</span> | 
|  | 497  484 | 
|  | 498  485   <span class="c"># Set AtomIndex to AtomID hash...</span> | 
|  | 499  486   <span class="i">%</span>{<span class="i">$This</span>->{<span class="w">AtomIndexToID</span>}} = <span class="s">(</span><span class="s">)</span><span class="sc">;</span> | 
|  | 500  487   <span class="i">@</span>{<span class="i">$This</span>->{<span class="w">AtomIndexToID</span>}}{ <span class="s">(</span><span class="n">0</span> .. <span class="i">$#AtomIDs</span><span class="s">)</span> } = <span class="i">@AtomIDs</span><span class="sc">;</span> | 
|  | 501  488 | 
|  | 502  489   <span class="k">return</span> <span class="i">$This</span><span class="sc">;</span> | 
|  | 503  490 <span class="s">}</span> | 
|  | 504  491 | 
|  | 505  492 <span class="c"># Clear cached molecule data...</span> | 
|  | 506  493 <span class="c">#</span> | 
|  | 507 <a name="_ClearMoleculeDataCache-"></a> 494 <span class="k">sub </span><span class="m">_ClearMoleculeDataCache</span> <span class="s">{</span> | 
|  | 508  495   <span class="k">my</span><span class="s">(</span><span class="i">$This</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> | 
|  | 509  496 | 
|  | 510  497   <span class="i">@</span>{<span class="i">$This</span>->{<span class="w">Atoms</span>}} = <span class="s">(</span><span class="s">)</span><span class="sc">;</span> | 
|  | 511  498 | 
|  | 512  499   <span class="k">return</span> <span class="i">$This</span><span class="sc">;</span> | 
|  | 513  500 <span class="s">}</span> | 
|  | 514  501 | 
|  | 515  502 <span class="c"># Set atomic invariants to use for atom identifiers...</span> | 
|  | 516  503 <span class="c">#</span> | 
|  | 517 <a name="SetAtomicInvariantsToUse-"></a> 504 <span class="k">sub </span><span class="m">SetAtomicInvariantsToUse</span> <span class="s">{</span> | 
|  | 518  505   <span class="k">my</span><span class="s">(</span><span class="i">$This</span><span class="cm">,</span> <span class="i">@Values</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> | 
|  | 519  506   <span class="k">my</span><span class="s">(</span><span class="i">$FirstValue</span><span class="cm">,</span> <span class="i">$TypeOfFirstValue</span><span class="cm">,</span> <span class="i">$AtomicInvariant</span><span class="cm">,</span> <span class="i">$SpecifiedAtomicInvariant</span><span class="cm">,</span> <span class="i">$AtomicInvariantValue</span><span class="cm">,</span> <span class="i">@SpecifiedAtomicInvariants</span><span class="cm">,</span> <span class="i">@AtomicInvariantsToUse</span><span class="s">)</span><span class="sc">;</span> | 
|  | 520  507 | 
|  | 521  508   <span class="k">if</span> <span class="s">(</span>!<span class="i">@Values</span><span class="s">)</span> <span class="s">{</span> | 
|  | 522  509     <span class="w">carp</span> <span class="q">"Warning: ${ClassName}->SetAtomicInvariantsToUse: No values specified..."</span><span class="sc">;</span> | 
|  | 523  510     <span class="k">return</span><span class="sc">;</span> | 
|  | 524  511   <span class="s">}</span> | 
|  | 525  512 | 
|  | 526  513   <span class="i">$FirstValue</span> = <span class="i">$Values</span>[<span class="n">0</span>]<span class="sc">;</span> | 
|  | 527  514   <span class="i">$TypeOfFirstValue</span> = <span class="k">ref</span> <span class="i">$FirstValue</span><span class="sc">;</span> | 
|  | 528  515 | 
|  | 529  516   <span class="i">@SpecifiedAtomicInvariants</span> = <span class="s">(</span><span class="s">)</span><span class="sc">;</span> | 
|  | 530  517   <span class="i">@AtomicInvariantsToUse</span> = <span class="s">(</span><span class="s">)</span><span class="sc">;</span> | 
|  | 531  518 | 
|  | 532  519   <span class="k">if</span> <span class="s">(</span><span class="i">$TypeOfFirstValue</span> =~ <span class="q">/^ARRAY/</span><span class="s">)</span> <span class="s">{</span> | 
|  | 533  520     <span class="k">push</span> <span class="i">@SpecifiedAtomicInvariants</span><span class="cm">,</span> <span class="i">@</span>{<span class="i">$FirstValue</span>}<span class="sc">;</span> | 
|  | 534  521   <span class="s">}</span> | 
|  | 535  522   <span class="k">else</span> <span class="s">{</span> | 
|  | 536  523     <span class="k">push</span> <span class="i">@SpecifiedAtomicInvariants</span><span class="cm">,</span> <span class="i">@Values</span><span class="sc">;</span> | 
|  | 537  524   <span class="s">}</span> | 
|  | 538  525 | 
|  | 539  526   <span class="c"># Make sure specified AtomicInvariants are valid...</span> | 
|  | 540  527   <span class="k">for</span> <span class="i">$SpecifiedAtomicInvariant</span> <span class="s">(</span><span class="i">@SpecifiedAtomicInvariants</span><span class="s">)</span> <span class="s">{</span> | 
|  | 541  528     <span class="k">if</span> <span class="s">(</span>!<span class="i">AtomTypes::AtomicInvariantsAtomTypes::IsAtomicInvariantAvailable</span><span class="s">(</span><span class="i">$SpecifiedAtomicInvariant</span><span class="s">)</span><span class="s">)</span> <span class="s">{</span> | 
|  | 542  529       <span class="w">croak</span> <span class="q">"Error: ${ClassName}->SetAtomicInvariantsToUse: Specified atomic invariant, $SpecifiedAtomicInvariant, is not supported...\n "</span><span class="sc">;</span> | 
|  | 543  530     <span class="s">}</span> | 
|  | 544  531     <span class="i">$AtomicInvariant</span> = <span class="i">$SpecifiedAtomicInvariant</span><span class="sc">;</span> | 
|  | 545  532     <span class="k">push</span> <span class="i">@AtomicInvariantsToUse</span><span class="cm">,</span> <span class="i">$AtomicInvariant</span><span class="sc">;</span> | 
|  | 546  533   <span class="s">}</span> | 
|  | 547  534 | 
|  | 548  535   <span class="c"># Set atomic invariants to use...</span> | 
|  | 549  536   <span class="i">@</span>{<span class="i">$This</span>->{<span class="w">AtomicInvariantsToUse</span>}} = <span class="s">(</span><span class="s">)</span><span class="sc">;</span> | 
|  | 550  537   <span class="k">push</span> <span class="i">@</span>{<span class="i">$This</span>->{<span class="w">AtomicInvariantsToUse</span>}}<span class="cm">,</span> <span class="i">@AtomicInvariantsToUse</span><span class="sc">;</span> | 
|  | 551  538 | 
|  | 552  539   <span class="k">return</span> <span class="i">$This</span><span class="sc">;</span> | 
|  | 553  540 <span class="s">}</span> | 
|  | 554  541 | 
|  | 555  542 <span class="c"># Set functional classes to use for atom identifiers...</span> | 
|  | 556  543 <span class="c">#</span> | 
|  | 557 <a name="SetFunctionalClassesToUse-"></a> 544 <span class="k">sub </span><span class="m">SetFunctionalClassesToUse</span> <span class="s">{</span> | 
|  | 558  545   <span class="k">my</span><span class="s">(</span><span class="i">$This</span><span class="cm">,</span> <span class="i">@Values</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> | 
|  | 559  546   <span class="k">my</span><span class="s">(</span><span class="i">$FirstValue</span><span class="cm">,</span> <span class="i">$TypeOfFirstValue</span><span class="cm">,</span> <span class="i">$FunctionalClass</span><span class="cm">,</span> <span class="i">$SpecifiedFunctionalClass</span><span class="cm">,</span> <span class="i">@SpecifiedFunctionalClasses</span><span class="cm">,</span> <span class="i">@FunctionalClassesToUse</span><span class="s">)</span><span class="sc">;</span> | 
|  | 560  547 | 
|  | 561  548   <span class="k">if</span> <span class="s">(</span>!<span class="i">@Values</span><span class="s">)</span> <span class="s">{</span> | 
|  | 562  549     <span class="w">carp</span> <span class="q">"Warning: ${ClassName}->SetFunctionalClassesToUse: No values specified..."</span><span class="sc">;</span> | 
|  | 563  550     <span class="k">return</span><span class="sc">;</span> | 
|  | 564  551   <span class="s">}</span> | 
|  | 565  552 | 
|  | 566  553   <span class="k">if</span> <span class="s">(</span><span class="i">$This</span>->{<span class="w">AtomIdentifierType</span>} !~ <span class="q">/^FunctionalClassAtomTypes$/i</span><span class="s">)</span> <span class="s">{</span> | 
|  | 567  554     <span class="w">carp</span> <span class="q">"Warning: ${ClassName}->SetFunctionalClassesToUse: FunctionalClassesToUse can't be set for InitialAtomIdentifierType of $This->{AtomIdentifierType}..."</span><span class="sc">;</span> | 
|  | 568  555     <span class="k">return</span><span class="sc">;</span> | 
|  | 569  556   <span class="s">}</span> | 
|  | 570  557 | 
|  | 571  558   <span class="i">$FirstValue</span> = <span class="i">$Values</span>[<span class="n">0</span>]<span class="sc">;</span> | 
|  | 572  559   <span class="i">$TypeOfFirstValue</span> = <span class="k">ref</span> <span class="i">$FirstValue</span><span class="sc">;</span> | 
|  | 573  560 | 
|  | 574  561   <span class="i">@SpecifiedFunctionalClasses</span> = <span class="s">(</span><span class="s">)</span><span class="sc">;</span> | 
|  | 575  562   <span class="i">@FunctionalClassesToUse</span> = <span class="s">(</span><span class="s">)</span><span class="sc">;</span> | 
|  | 576  563 | 
|  | 577  564   <span class="k">if</span> <span class="s">(</span><span class="i">$TypeOfFirstValue</span> =~ <span class="q">/^ARRAY/</span><span class="s">)</span> <span class="s">{</span> | 
|  | 578  565     <span class="k">push</span> <span class="i">@SpecifiedFunctionalClasses</span><span class="cm">,</span> <span class="i">@</span>{<span class="i">$FirstValue</span>}<span class="sc">;</span> | 
|  | 579  566   <span class="s">}</span> | 
|  | 580  567   <span class="k">else</span> <span class="s">{</span> | 
|  | 581  568     <span class="k">push</span> <span class="i">@SpecifiedFunctionalClasses</span><span class="cm">,</span> <span class="i">@Values</span><span class="sc">;</span> | 
|  | 582  569   <span class="s">}</span> | 
|  | 583  570 | 
|  | 584  571   <span class="c"># Make sure specified FunctionalClasses are valid...</span> | 
|  | 585  572   <span class="k">for</span> <span class="i">$SpecifiedFunctionalClass</span> <span class="s">(</span><span class="i">@SpecifiedFunctionalClasses</span><span class="s">)</span> <span class="s">{</span> | 
|  | 586  573     <span class="k">if</span> <span class="s">(</span>!<span class="i">AtomTypes::FunctionalClassAtomTypes::IsFunctionalClassAvailable</span><span class="s">(</span><span class="i">$SpecifiedFunctionalClass</span><span class="s">)</span><span class="s">)</span> <span class="s">{</span> | 
|  | 587  574       <span class="w">croak</span> <span class="q">"Error: ${ClassName}->SetFunctionalClassesToUse: Specified functional class, $SpecifiedFunctionalClass, is not supported...\n "</span><span class="sc">;</span> | 
|  | 588  575     <span class="s">}</span> | 
|  | 589  576     <span class="k">push</span> <span class="i">@FunctionalClassesToUse</span><span class="cm">,</span> <span class="i">$SpecifiedFunctionalClass</span><span class="sc">;</span> | 
|  | 590  577   <span class="s">}</span> | 
|  | 591  578 | 
|  | 592  579   <span class="c"># Set functional classes to use...</span> | 
|  | 593  580   <span class="i">@</span>{<span class="i">$This</span>->{<span class="w">FunctionalClassesToUse</span>}} = <span class="s">(</span><span class="s">)</span><span class="sc">;</span> | 
|  | 594  581   <span class="k">push</span> <span class="i">@</span>{<span class="i">$This</span>->{<span class="w">FunctionalClassesToUse</span>}}<span class="cm">,</span> <span class="i">@FunctionalClassesToUse</span><span class="sc">;</span> | 
|  | 595  582 | 
|  | 596  583   <span class="k">return</span> <span class="i">$This</span><span class="sc">;</span> | 
|  | 597  584 <span class="s">}</span> | 
|  | 598  585 | 
|  | 599  586 <span class="c"># Initialize atom indentifier type information...</span> | 
|  | 600  587 <span class="c">#</span> | 
|  | 601  588 <span class="c"># Current supported values:</span> | 
|  | 602  589 <span class="c">#</span> | 
|  | 603  590 <span class="c"># AtomicInvariantsAtomTypes, DREIDINGAtomTypes, EStateAtomTypes, FunctionalClassAtomTypes,</span> | 
|  | 604  591 <span class="c"># MMFF94AtomTypes, SLogPAtomTypes, SYBYLAtomTypes, TPSAAtomTypes, UFFAtomTypes</span> | 
|  | 605  592 <span class="c">#</span> | 
|  | 606 <a name="_InitializeAtomIdentifierTypeInformation-"></a> 593 <span class="k">sub </span><span class="m">_InitializeAtomIdentifierTypeInformation</span> <span class="s">{</span> | 
|  | 607  594   <span class="k">my</span><span class="s">(</span><span class="i">$This</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> | 
|  | 608  595 | 
|  | 609  596   <span class="k">if</span> <span class="s">(</span><span class="i">$This</span>->{<span class="w">AtomIdentifierType</span>} =~ <span class="q">/^AtomicInvariantsAtomTypes$/i</span><span class="s">)</span> <span class="s">{</span> | 
|  | 610  597     <span class="i">$This</span><span class="i">->_InitializeAtomicInvariantsAtomTypesInformation</span><span class="s">(</span><span class="s">)</span><span class="sc">;</span> | 
|  | 611  598   <span class="s">}</span> | 
|  | 612  599   <span class="k">elsif</span> <span class="s">(</span><span class="i">$This</span>->{<span class="w">AtomIdentifierType</span>} =~ <span class="q">/^FunctionalClassAtomTypes$/i</span><span class="s">)</span> <span class="s">{</span> | 
|  | 613  600     <span class="i">$This</span><span class="i">->_InitializeFunctionalClassAtomTypesInformation</span><span class="s">(</span><span class="s">)</span><span class="sc">;</span> | 
|  | 614  601   <span class="s">}</span> | 
|  | 615  602   <span class="k">elsif</span> <span class="s">(</span><span class="i">$This</span>->{<span class="w">AtomIdentifierType</span>} =~ <span class="q">/^(DREIDINGAtomTypes|EStateAtomTypes|MMFF94AtomTypes|SLogPAtomTypes|SYBYLAtomTypes|TPSAAtomTypes|UFFAtomTypes)$/i</span><span class="s">)</span> <span class="s">{</span> | 
|  | 616  603     <span class="c"># Nothing to do for now...</span> | 
|  | 617  604   <span class="s">}</span> | 
|  | 618  605   <span class="k">else</span> <span class="s">{</span> | 
|  | 619  606     <span class="w">croak</span> <span class="q">"Error: ${ClassName}->_InitializeAtomIdentifierTypeInformation: Unknown atom indentifier type $This->{AtomIdentifierType}..."</span><span class="sc">;</span> | 
|  | 620  607   <span class="s">}</span> | 
|  | 621  608 | 
|  | 622  609   <span class="k">return</span> <span class="i">$This</span><span class="sc">;</span> | 
|  | 623  610 <span class="s">}</span> | 
|  | 624  611 | 
|  | 625  612 <span class="c"># Initialize atomic invariants atom types to use for generating atom identifiers...</span> | 
|  | 626  613 <span class="c">#</span> | 
|  | 627  614 <span class="c"># Let:</span> | 
|  | 628  615 <span class="c">#   AS = Atom symbol corresponding to element symbol</span> | 
|  | 629  616 <span class="c">#</span> | 
|  | 630  617 <span class="c">#   X<n>   = Number of non-hydrogen atom neighbors or heavy atoms attached to atom</span> | 
|  | 631  618 <span class="c">#   BO<n> = Sum of bond orders to non-hydrogen atom neighbors or heavy atoms attached to atom</span> | 
|  | 632  619 <span class="c">#   LBO<n> = Largest bond order of non-hydrogen atom neighbors or heavy atoms attached to atom</span> | 
|  | 633  620 <span class="c">#   SB<n> = Number of single bonds to non-hydrogen atom neighbors or heavy atoms attached to atom</span> | 
|  | 634  621 <span class="c">#   DB<n> = Number of double bonds to non-hydrogen atom neighbors or heavy atoms attached to atom</span> | 
|  | 635  622 <span class="c">#   TB<n> = Number of triple bonds to non-hydrogen atom neighbors or heavy atoms attached to atom</span> | 
|  | 636  623 <span class="c">#   H<n>   = Number of implicit and explicit hydrogens for atom</span> | 
|  | 637  624 <span class="c">#   Ar     = Aromatic annotation indicating whether atom is aromatic</span> | 
|  | 638  625 <span class="c">#   RA     = Ring atom annotation indicating whether atom is a ring</span> | 
|  | 639  626 <span class="c">#   FC<+n/-n> = Formal charge assigned to atom</span> | 
|  | 640  627 <span class="c">#   MN<n> = Mass number indicating isotope other than most abundant isotope</span> | 
|  | 641  628 <span class="c">#   SM<n> = Spin multiplicity of atom. Possible values: 1 (singlet), 2 (doublet) or 3 (triplet)</span> | 
|  | 642  629 <span class="c">#</span> | 
|  | 643  630 <span class="c">#   AtomTypeIDx = Atomic invariants atom type for atom x</span> | 
|  | 644  631 <span class="c">#   AtomTypeIDy = Atomic invariants atom type for atom y</span> | 
|  | 645  632 <span class="c">#   Dn   = Topological distance between atom x and y</span> | 
|  | 646  633 <span class="c">#</span> | 
|  | 647  634 <span class="c"># Then:</span> | 
|  | 648  635 <span class="c">#</span> | 
|  | 649  636 <span class="c">#   Atom pair AtomID generated by AtomTypes::AtomicInvariantsAtomTypes class corresponds to:</span> | 
|  | 650  637 <span class="c">#</span> | 
|  | 651  638 <span class="c">#     AS.X<n>.BO<n>.LBO<n>.<SB><n>.<DB><n>.<TB><n>.H<n>.Ar.RA.FC<+n/-n>.MN<n>.SM<n></span> | 
|  | 652  639 <span class="c">#</span> | 
|  | 653  640 <span class="c">#  AtomPairID corresponds to:</span> | 
|  | 654  641 <span class="c">#</span> | 
|  | 655  642 <span class="c">#    AtomTypeIDx-D<n>-AtomTypeIDy</span> | 
|  | 656  643 <span class="c">#</span> | 
|  | 657  644 <span class="c"># Except for AS which is a required atomic invariant in atom pair AtomIDs, all other atomic invariants are</span> | 
|  | 658  645 <span class="c"># optional. Default atomic invariants used for AtomID are: AS, X<n>, BO<n>, H<n>, FC<+n/-n>.</span> | 
|  | 659  646 <span class="c"># AtomID specification doesn't include atomic invariants with zero or undefined values.</span> | 
|  | 660  647 <span class="c">#</span> | 
|  | 661  648 <span class="c"># Examples of atom pair AtomIDs:</span> | 
|  | 662  649 <span class="c">#</span> | 
|  | 663  650 <span class="c">#   O.X1.BO1.H1 - Hydroxyl oxygen in carboxylate with attached hydrogen and no explicit charge</span> | 
|  | 664  651 <span class="c">#   O.X1.BO1.FC-1 - Hydroxyl ozygen in carboxylate with explicit negative charge</span> | 
|  | 665  652 <span class="c">#   O.X1.BO2 - Carbonyl oxygen in carboxylate with double bond to carbon</span> | 
|  | 666  653 <span class="c">#   O.X2.BO2 - Hydroxyl ozygen in carboxylate attached to carbonyl carbon and another heavy atom</span> | 
|  | 667  654 <span class="c">#</span> | 
|  | 668  655 <span class="c">#   C.X2.BO3.H1.Ar - Aromatic carbon</span> | 
|  | 669  656 <span class="c">#</span> | 
|  | 670  657 <span class="c"># Examples of AtomPairIDs:</span> | 
|  | 671  658 <span class="c">#</span> | 
|  | 672  659 <span class="c">#   C.X2.BO2.H3-D1-O.X1.BO1 - Carbon with two heavy atom neighbors attached to oxygen at bond distance 1(methanol)</span> | 
|  | 673  660 <span class="c">#</span> | 
|  | 674  661 <span class="c">#   C.X2.BO3.H1.Ar-D3-C.X2.BO3.H1.Ar  - Two aromatic carbons at bond distance 3 where each carbon has</span> | 
|  | 675  662 <span class="c">#                                       two heavy atom neighbors and bond order of 3 (benzene)</span> | 
|  | 676  663 <span class="c">#</span> | 
|  | 677 <a name="_InitializeAtomicInvariantsAtomTypesInformation-"></a> 664 <span class="k">sub </span><span class="m">_InitializeAtomicInvariantsAtomTypesInformation</span> <span class="s">{</span> | 
|  | 678  665   <span class="k">my</span><span class="s">(</span><span class="i">$This</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> | 
|  | 679  666 | 
|  | 680  667   <span class="c"># Default atomic invariants to use for generating atom neighborhood atom IDs: AS, X, BO, H, FC</span> | 
|  | 681  668   <span class="c">#</span> | 
|  | 682  669   <span class="i">@</span>{<span class="i">$This</span>->{<span class="w">AtomicInvariantsToUse</span>}} = <span class="s">(</span><span class="s">)</span><span class="sc">;</span> | 
|  | 683  670   <span class="i">@</span>{<span class="i">$This</span>->{<span class="w">AtomicInvariantsToUse</span>}} = <span class="s">(</span><span class="q">'AS'</span><span class="cm">,</span> <span class="q">'X'</span><span class="cm">,</span> <span class="q">'BO'</span><span class="cm">,</span> <span class="q">'H'</span><span class="cm">,</span> <span class="q">'FC'</span><span class="s">)</span><span class="sc">;</span> | 
|  | 684  671 | 
|  | 685  672   <span class="k">return</span> <span class="i">$This</span><span class="sc">;</span> | 
|  | 686  673 <span class="s">}</span> | 
|  | 687  674 | 
|  | 688  675 <span class="c"># Initialize functional class atom types, generated by AtomTypes::FunctionalClassAtomTypes</span> | 
|  | 689  676 <span class="c"># class, to use for generating atom identifiers...</span> | 
|  | 690  677 <span class="c">#</span> | 
|  | 691  678 <span class="c"># Let:</span> | 
|  | 692  679 <span class="c">#   HBD: HydrogenBondDonor</span> | 
|  | 693  680 <span class="c">#   HBA: HydrogenBondAcceptor</span> | 
|  | 694  681 <span class="c">#   PI :  PositivelyIonizable</span> | 
|  | 695  682 <span class="c">#   NI : NegativelyIonizable</span> | 
|  | 696  683 <span class="c">#   Ar : Aromatic</span> | 
|  | 697  684 <span class="c">#   Hal : Halogen</span> | 
|  | 698  685 <span class="c">#   H : Hydrophobic</span> | 
|  | 699  686 <span class="c">#   RA : RingAtom</span> | 
|  | 700  687 <span class="c">#   CA : ChainAtom</span> | 
|  | 701  688 <span class="c">#</span> | 
|  | 702  689 <span class="c"># Then:</span> | 
|  | 703  690 <span class="c">#</span> | 
|  | 704  691 <span class="c">#   Functiononal class atom type specification for an atom corresponds to:</span> | 
|  | 705  692 <span class="c">#</span> | 
|  | 706  693 <span class="c">#     Ar.CA.H.HBA.HBD.Hal.NI.PI.RA</span> | 
|  | 707  694 <span class="c">#</span> | 
|  | 708  695 <span class="c">#   Default functional classes used are: HBD, HBA, PI, NI, Ar, Hal</span> | 
|  | 709  696 <span class="c">#</span> | 
|  | 710  697 <span class="c">#   FunctionalAtomTypes are assigned using the following definitions [ Ref 60-61, Ref 65-66 ]:</span> | 
|  | 711  698 <span class="c">#</span> | 
|  | 712  699 <span class="c">#     HydrogenBondDonor: NH, NH2, OH</span> | 
|  | 713  700 <span class="c">#     HydrogenBondAcceptor: N[!H], O</span> | 
|  | 714  701 <span class="c">#     PositivelyIonizable: +, NH2</span> | 
|  | 715  702 <span class="c">#     NegativelyIonizable: -, C(=O)OH, S(=O)OH, P(=O)OH</span> | 
|  | 716  703 <span class="c">#</span> | 
|  | 717 <a name="_InitializeFunctionalClassAtomTypesInformation-"></a> 704 <span class="k">sub </span><span class="m">_InitializeFunctionalClassAtomTypesInformation</span> <span class="s">{</span> | 
|  | 718  705   <span class="k">my</span><span class="s">(</span><span class="i">$This</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> | 
|  | 719  706 | 
|  | 720  707   <span class="c"># Default functional class atom typess to use for generating atom identifiers</span> | 
|  | 721  708   <span class="c"># are: HBD, HBA, PI, NI, Ar, Hal</span> | 
|  | 722  709   <span class="c">#</span> | 
|  | 723  710   <span class="i">@</span>{<span class="i">$This</span>->{<span class="w">FunctionalClassesToUse</span>}} = <span class="s">(</span><span class="s">)</span><span class="sc">;</span> | 
|  | 724  711   <span class="i">@</span>{<span class="i">$This</span>->{<span class="w">FunctionalClassesToUse</span>}} = <span class="s">(</span><span class="q">'HBD'</span><span class="cm">,</span> <span class="q">'HBA'</span><span class="cm">,</span> <span class="q">'PI'</span><span class="cm">,</span> <span class="q">'NI'</span><span class="cm">,</span> <span class="q">'Ar'</span><span class="cm">,</span> <span class="q">'Hal'</span><span class="s">)</span><span class="sc">;</span> | 
|  | 725  712 | 
|  | 726  713   <span class="k">return</span> <span class="i">$This</span><span class="sc">;</span> | 
|  | 727  714 <span class="s">}</span> | 
|  | 728  715 | 
|  | 729  716 <span class="c"># Return a string containg data for TopologicalAtomPairsFingerprints object...</span> | 
|  | 730  717 <span class="c">#</span> | 
|  | 731 <a name="StringifyTopologicalAtomPairsFingerprints-"></a> 718 <span class="k">sub </span><span class="m">StringifyTopologicalAtomPairsFingerprints</span> <span class="s">{</span> | 
|  | 732  719   <span class="k">my</span><span class="s">(</span><span class="i">$This</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> | 
|  | 733  720   <span class="k">my</span><span class="s">(</span><span class="i">$FingerprintsString</span><span class="s">)</span><span class="sc">;</span> | 
|  | 734  721 | 
|  | 735  722   <span class="c"># Type of fingerprint...</span> | 
|  | 736  723   <span class="i">$FingerprintsString</span> = <span class="q">"Fingerprint type: $This->{Type}; AtomIdentifierType: $This->{AtomIdentifierType}"</span><span class="sc">;</span> | 
|  | 737  724 | 
|  | 738  725   <span class="c"># Min and max distance...</span> | 
|  | 739  726   <span class="i">$FingerprintsString</span> .= <span class="q">"; MinDistance:  $This->{MinDistance}; MaxDistance: $This->{MaxDistance}"</span><span class="sc">;</span> | 
|  | 740  727 | 
|  | 741  728   <span class="k">if</span> <span class="s">(</span><span class="i">$This</span>->{<span class="w">AtomIdentifierType</span>} =~ <span class="q">/^AtomicInvariantsAtomTypes$/i</span><span class="s">)</span> <span class="s">{</span> | 
|  | 742  729     <span class="k">my</span><span class="s">(</span><span class="i">$AtomicInvariant</span><span class="cm">,</span> <span class="i">@AtomicInvariants</span><span class="cm">,</span> <span class="i">@AtomicInvariantsOrder</span><span class="cm">,</span> <span class="i">%AvailableAtomicInvariants</span><span class="s">)</span><span class="sc">;</span> | 
|  | 743  730 | 
|  | 744  731     <span class="i">@AtomicInvariantsOrder</span> = <span class="i">AtomTypes::AtomicInvariantsAtomTypes::GetAtomicInvariantsOrder</span><span class="s">(</span><span class="s">)</span><span class="sc">;</span> | 
|  | 745  732     <span class="i">%AvailableAtomicInvariants</span> = <span class="i">AtomTypes::AtomicInvariantsAtomTypes::GetAvailableAtomicInvariants</span><span class="s">(</span><span class="s">)</span><span class="sc">;</span> | 
|  | 746  733 | 
|  | 747  734     <span class="k">for</span> <span class="i">$AtomicInvariant</span> <span class="s">(</span><span class="i">@AtomicInvariantsOrder</span><span class="s">)</span> <span class="s">{</span> | 
|  | 748  735       <span class="k">push</span> <span class="i">@AtomicInvariants</span><span class="cm">,</span> <span class="q">"$AtomicInvariant: $AvailableAtomicInvariants{$AtomicInvariant}"</span><span class="sc">;</span> | 
|  | 749  736     <span class="s">}</span> | 
|  | 750  737 | 
|  | 751  738     <span class="i">$FingerprintsString</span> .= <span class="q">"; AtomicInvariantsToUse: <"</span> . <span class="i">TextUtil::JoinWords</span><span class="s">(</span>\<span class="i">@</span>{<span class="i">$This</span>->{<span class="w">AtomicInvariantsToUse</span>}}<span class="cm">,</span> <span class="q">", "</span><span class="cm">,</span> <span class="n">0</span><span class="s">)</span> . <span class="q">">"</span><span class="sc">;</span> | 
|  | 752  739     <span class="i">$FingerprintsString</span> .= <span class="q">"; AtomicInvariantsOrder: <"</span> . <span class="i">TextUtil::JoinWords</span><span class="s">(</span>\<span class="i">@AtomicInvariantsOrder</span><span class="cm">,</span> <span class="q">", "</span><span class="cm">,</span> <span class="n">0</span><span class="s">)</span> . <span class="q">">"</span><span class="sc">;</span> | 
|  | 753  740     <span class="i">$FingerprintsString</span> .= <span class="q">"; AvailableAtomicInvariants: <"</span> . <span class="i">TextUtil::JoinWords</span><span class="s">(</span>\<span class="i">@AtomicInvariants</span><span class="cm">,</span> <span class="q">", "</span><span class="cm">,</span> <span class="n">0</span><span class="s">)</span> . <span class="q">">"</span><span class="sc">;</span> | 
|  | 754  741   <span class="s">}</span> | 
|  | 755  742   <span class="k">elsif</span> <span class="s">(</span><span class="i">$This</span>->{<span class="w">AtomIdentifierType</span>} =~ <span class="q">/^FunctionalClassAtomTypes$/i</span><span class="s">)</span> <span class="s">{</span> | 
|  | 756  743     <span class="k">my</span><span class="s">(</span><span class="i">$FunctionalClass</span><span class="cm">,</span> <span class="i">@FunctionalClasses</span><span class="cm">,</span> <span class="i">@FunctionalClassesOrder</span><span class="cm">,</span> <span class="i">%AvailableFunctionalClasses</span><span class="s">)</span><span class="sc">;</span> | 
|  | 757  744 | 
|  | 758  745     <span class="i">@FunctionalClassesOrder</span> = <span class="i">AtomTypes::FunctionalClassAtomTypes::GetFunctionalClassesOrder</span><span class="s">(</span><span class="s">)</span><span class="sc">;</span> | 
|  | 759  746     <span class="i">%AvailableFunctionalClasses</span> = <span class="i">AtomTypes::FunctionalClassAtomTypes::GetAvailableFunctionalClasses</span><span class="s">(</span><span class="s">)</span><span class="sc">;</span> | 
|  | 760  747 | 
|  | 761  748     <span class="k">for</span> <span class="i">$FunctionalClass</span> <span class="s">(</span><span class="i">@FunctionalClassesOrder</span><span class="s">)</span> <span class="s">{</span> | 
|  | 762  749       <span class="k">push</span> <span class="i">@FunctionalClasses</span><span class="cm">,</span> <span class="q">"$FunctionalClass: $AvailableFunctionalClasses{$FunctionalClass}"</span><span class="sc">;</span> | 
|  | 763  750     <span class="s">}</span> | 
|  | 764  751 | 
|  | 765  752     <span class="i">$FingerprintsString</span> .= <span class="q">"; FunctionalClassesToUse: <"</span> . <span class="i">TextUtil::JoinWords</span><span class="s">(</span>\<span class="i">@</span>{<span class="i">$This</span>->{<span class="w">FunctionalClassesToUse</span>}}<span class="cm">,</span> <span class="q">", "</span><span class="cm">,</span> <span class="n">0</span><span class="s">)</span> . <span class="q">">"</span><span class="sc">;</span> | 
|  | 766  753     <span class="i">$FingerprintsString</span> .= <span class="q">"; FunctionalClassesOrder: <"</span> . <span class="i">TextUtil::JoinWords</span><span class="s">(</span>\<span class="i">@FunctionalClassesOrder</span><span class="cm">,</span> <span class="q">", "</span><span class="cm">,</span> <span class="n">0</span><span class="s">)</span> . <span class="q">">"</span><span class="sc">;</span> | 
|  | 767  754     <span class="i">$FingerprintsString</span> .= <span class="q">"; AvailableFunctionalClasses: <"</span> . <span class="i">TextUtil::JoinWords</span><span class="s">(</span>\<span class="i">@FunctionalClasses</span><span class="cm">,</span> <span class="q">", "</span><span class="cm">,</span> <span class="n">0</span><span class="s">)</span> . <span class="q">">"</span><span class="sc">;</span> | 
|  | 768  755   <span class="s">}</span> | 
|  | 769  756 | 
|  | 770  757   <span class="c"># Total number of atom pairs...</span> | 
|  | 771  758   <span class="i">$FingerprintsString</span> .= <span class="q">"; NumOfAtomPairs: "</span> . <span class="i">$This</span>->{<span class="w">FingerprintsVector</span>}<span class="i">->GetNumOfValues</span><span class="s">(</span><span class="s">)</span><span class="sc">;</span> | 
|  | 772  759 | 
|  | 773  760   <span class="c"># FingerprintsVector...</span> | 
|  | 774  761   <span class="i">$FingerprintsString</span> .= <span class="q">"; FingerprintsVector: < $This->{FingerprintsVector} >"</span><span class="sc">;</span> | 
|  | 775  762 | 
|  | 776  763   <span class="k">return</span> <span class="i">$FingerprintsString</span><span class="sc">;</span> | 
|  | 777  764 <span class="s">}</span> | 
|  | 778  765 | 
|  | 779 <a name="EOF-"></a></pre> | 
|  | 780 <p> </p> | 
|  | 781 <br /> | 
|  | 782 <center> | 
|  | 783 <img src="../../../images/h2o2.png"> | 
|  | 784 </center> | 
|  | 785 </body> | 
|  | 786 </html> |