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https://github.com/rdkit/rdkit.git
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1232 lines
46 KiB
C++
1232 lines
46 KiB
C++
//
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// Copyright (C) 2014 Novartis Institutes for BioMedical Research
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//
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// @@ All Rights Reserved @@
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// This file is part of the RDKit.
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// The contents are covered by the terms of the BSD license
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// which is included in the file license.txt, found at the root
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// of the RDKit source tree.
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//
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#include <list>
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#include <algorithm>
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#include <math.h>
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#include "../QueryAtom.h"
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#include "../QueryBond.h"
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#include "../SmilesParse/SmilesWrite.h"
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#include "../SmilesParse/SmartsWrite.h"
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#include "../SmilesParse/SmilesParse.h"
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#include "../Substruct/SubstructMatch.h"
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#include "SubstructMatchCustom.h"
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#include "MaximumCommonSubgraph.h"
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#include <boost/graph/adjacency_list.hpp>
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namespace RDKit {
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namespace FMCS {
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struct LabelDefinition {
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unsigned ItemIndex; // item with this label value
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unsigned Value;
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LabelDefinition() : ItemIndex(NotSet), Value(NotSet) {}
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LabelDefinition(unsigned i, unsigned value) : ItemIndex(i), Value(value) {}
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};
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MaximumCommonSubgraph::MaximumCommonSubgraph(const MCSParameters* params) {
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Parameters = (nullptr != params ? *params : MCSParameters());
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if (!Parameters.ProgressCallback) {
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Parameters.ProgressCallback = MCSProgressCallbackTimeout;
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Parameters.ProgressCallbackUserData = &To;
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}
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if (Parameters.AtomCompareParameters.MatchChiralTag &&
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nullptr == Parameters.FinalMatchChecker) {
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Parameters.FinalMatchChecker = FinalChiralityCheckFunction;
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Parameters.BondCompareParameters.MatchStereo = true;
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}
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To = nanoClock();
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}
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static bool molPtr_NumBondLess(
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const ROMol* l,
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const ROMol* r) { // need for sorting the source molecules by size
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return l->getNumBonds() < r->getNumBonds();
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}
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void MaximumCommonSubgraph::init() {
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QueryMolecule = Molecules.front();
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Targets.clear();
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#ifdef FAST_SUBSTRUCT_CACHE
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QueryAtomLabels.clear();
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QueryBondLabels.clear();
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QueryAtomMatchTable.clear();
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QueryBondMatchTable.clear();
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RingMatchTables.clear();
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#endif
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#ifdef DUP_SUBSTRUCT_CACHE
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DuplicateCache.clear();
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#endif
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void* userData = Parameters.CompareFunctionsUserData;
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if (Parameters.BondCompareParameters.CompleteRingsOnly ||
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Parameters.BondCompareParameters.RingMatchesRingOnly ||
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Parameters.AtomCompareParameters.RingMatchesRingOnly) {
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#ifdef FAST_SUBSTRUCT_CACHE
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RingMatchTables.init(QueryMolecule);
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Parameters.CompareFunctionsUserData = &RingMatchTables;
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#endif
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}
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size_t nq = 0;
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#ifdef FAST_SUBSTRUCT_CACHE
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// fill out RingMatchTables to check cache Hash collision by checking match a
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// part of Query to Query
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if (!userData // predefined functor - compute RingMatchTable for all targets
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&& (Parameters.BondCompareParameters.CompleteRingsOnly ||
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Parameters.BondCompareParameters.RingMatchesRingOnly ||
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Parameters.AtomCompareParameters.RingMatchesRingOnly))
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RingMatchTables.computeRingMatchTable(QueryMolecule, QueryMolecule,
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Parameters);
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// fill out match tables
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nq = QueryMolecule->getNumAtoms();
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QueryAtomMatchTable.resize(nq, nq);
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for (size_t aj = 0; aj < nq; aj++)
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for (size_t ai = 0; ai < nq; ai++)
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QueryAtomMatchTable.set(
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ai, aj,
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Parameters.AtomTyper(Parameters.AtomCompareParameters, *QueryMolecule,
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ai, *QueryMolecule, aj,
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Parameters.CompareFunctionsUserData));
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nq = QueryMolecule->getNumBonds();
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QueryBondMatchTable.resize(nq, nq);
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for (size_t aj = 0; aj < nq; aj++)
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for (size_t ai = 0; ai < nq; ai++)
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QueryBondMatchTable.set(
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ai, aj,
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Parameters.BondTyper(Parameters.BondCompareParameters, *QueryMolecule,
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ai, *QueryMolecule, aj,
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Parameters.CompareFunctionsUserData));
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// Compute label values based on current functor and parameters for code
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// Morgan correct computation.
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unsigned currentLabelValue = 1;
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std::vector<LabelDefinition> labels;
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nq = QueryMolecule->getNumAtoms();
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QueryAtomLabels.resize(nq);
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for (size_t ai = 0; ai < nq; ai++) {
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if (MCSAtomCompareAny ==
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Parameters
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.AtomTyper) // predefined functor without atom compare parameters
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QueryAtomLabels[ai] = 1;
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else {
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const Atom* atom = QueryMolecule->getAtomWithIdx(ai);
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if (MCSAtomCompareElements ==
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Parameters
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.AtomTyper) // predefined functor without atom compare parameters
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QueryAtomLabels[ai] = atom->getAtomicNum() |
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(Parameters.AtomCompareParameters.MatchValences
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? (atom->getTotalValence() >> 8)
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: 0);
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else if (MCSAtomCompareIsotopes ==
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Parameters.AtomTyper) // predefined functor without atom compare
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// parameters
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QueryAtomLabels[ai] = atom->getAtomicNum() | (atom->getIsotope() >> 8) |
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(Parameters.AtomCompareParameters.MatchValences
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? (atom->getTotalValence() >> 16)
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: 0);
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else { // custom user defined functor
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QueryAtomLabels[ai] = NotSet;
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for (auto& label : labels)
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if (Parameters.AtomTyper(Parameters.AtomCompareParameters,
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*QueryMolecule, label.ItemIndex,
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*QueryMolecule, ai,
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userData)) { // equal itoms
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QueryAtomLabels[ai] = label.Value;
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break;
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}
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if (NotSet == QueryAtomLabels[ai]) { // not found -> create new label
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QueryAtomLabels[ai] = ++currentLabelValue;
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labels.push_back(LabelDefinition(ai, currentLabelValue));
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}
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}
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}
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}
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labels.clear();
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currentLabelValue = 1;
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nq = QueryMolecule->getNumBonds();
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QueryBondLabels.resize(nq);
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for (size_t aj = 0; aj < nq; aj++) {
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const Bond* bond = QueryMolecule->getBondWithIdx(aj);
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unsigned ring = 0;
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if (Parameters.BondCompareParameters.CompleteRingsOnly ||
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Parameters.BondCompareParameters.RingMatchesRingOnly) {
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ring = RingMatchTables.isQueryBondInRing(aj) ? 0 : 1; // is bond in ring
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}
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if (MCSBondCompareAny ==
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Parameters
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.BondTyper) // predefined functor without atom compare parameters
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QueryBondLabels[aj] = 1 | (ring >> 8);
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else if (MCSBondCompareOrderExact ==
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Parameters
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.BondTyper) // predefined functor without compare parameters
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QueryBondLabels[aj] = (bond->getBondType() + 1) | (ring >> 8);
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else if (MCSBondCompareOrder ==
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Parameters
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.BondTyper) { // predefined functor, ignore Aromatization
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unsigned order = bond->getBondType();
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if (Bond::AROMATIC == order ||
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Bond::ONEANDAHALF == order) // ignore Aromatization
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order = Bond::SINGLE;
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else if (Bond::TWOANDAHALF == order)
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order = Bond::DOUBLE;
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else if (Bond::THREEANDAHALF == order)
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order = Bond::TRIPLE;
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else if (Bond::FOURANDAHALF == order)
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order = Bond::QUADRUPLE;
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else if (Bond::FIVEANDAHALF == order)
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order = Bond::QUINTUPLE;
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QueryBondLabels[aj] = (order + 1) | (ring >> 8);
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} else { // custom user defined functor
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QueryBondLabels[aj] = NotSet;
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for (auto& label : labels)
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if (Parameters.BondTyper(Parameters.BondCompareParameters,
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*QueryMolecule, label.ItemIndex,
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*QueryMolecule, aj,
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userData)) { // equal bonds + ring ...
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QueryBondLabels[aj] = label.Value;
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break;
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}
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if (NotSet == QueryAtomLabels[aj]) { // not found -> create new label
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QueryBondLabels[aj] = ++currentLabelValue;
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labels.push_back(LabelDefinition(aj, currentLabelValue));
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}
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}
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}
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#endif
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Targets.resize(Molecules.size() - 1);
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size_t i = 0;
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for (auto it = Molecules.begin() + 1; it != Molecules.end(); it++, i++) {
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Targets[i].Molecule = *it;
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// build Target Topology ADD ATOMs
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size_t j = 0; // current item
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for (ROMol::ConstAtomIterator a = Targets[i].Molecule->beginAtoms();
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a != Targets[i].Molecule->endAtoms(); a++, j++) {
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Targets[i].Topology.addAtom((*a)->getIdx());
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}
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// build Target Topology ADD BONDs
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for (ROMol::ConstBondIterator b = Targets[i].Molecule->beginBonds();
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b != Targets[i].Molecule->endBonds(); b++) {
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const Bond* bond = *b;
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unsigned ii = bond->getBeginAtomIdx();
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unsigned jj = bond->getEndAtomIdx();
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Targets[i].Topology.addBond((*b)->getIdx(), ii, jj);
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}
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// fill out RingMatchTables
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if (!userData // predefined functor - compute RingMatchTable for all
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// targets
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&& (Parameters.BondCompareParameters.CompleteRingsOnly ||
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Parameters.BondCompareParameters.RingMatchesRingOnly)) {
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#ifdef FAST_SUBSTRUCT_CACHE
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RingMatchTables.addTargetBondRingsIndeces(Targets[i].Molecule);
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RingMatchTables.computeRingMatchTable(QueryMolecule, Targets[i].Molecule,
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Parameters);
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#endif
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}
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// fill out match tables
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size_t nq = QueryMolecule->getNumAtoms();
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size_t nt = (*it)->getNumAtoms();
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Targets[i].AtomMatchTable.resize(nq, nt);
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for (size_t aj = 0; aj < nt; aj++)
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for (size_t ai = 0; ai < nq; ai++)
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Targets[i].AtomMatchTable.set(
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ai, aj,
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Parameters.AtomTyper(Parameters.AtomCompareParameters,
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*QueryMolecule, ai, *Targets[i].Molecule, aj,
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Parameters.CompareFunctionsUserData));
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nq = QueryMolecule->getNumBonds();
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nt = (*it)->getNumBonds();
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Targets[i].BondMatchTable.resize(nq, nt);
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for (size_t aj = 0; aj < nt; aj++)
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for (size_t ai = 0; ai < nq; ai++)
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Targets[i].BondMatchTable.set(
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ai, aj,
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Parameters.BondTyper(Parameters.BondCompareParameters,
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*QueryMolecule, ai, *Targets[i].Molecule, aj,
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Parameters.CompareFunctionsUserData));
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}
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Parameters.CompareFunctionsUserData = userData; // restore
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}
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struct QueryRings {
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std::vector<unsigned> BondRings; // amount of rings
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std::vector<unsigned> AtomRings; // amount of rings
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QueryRings(const ROMol* query)
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: BondRings(query->getNumBonds()), AtomRings(query->getNumAtoms()) {
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{
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for (unsigned int& BondRing : BondRings) BondRing = 0;
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const RingInfo::VECT_INT_VECT& rings = query->getRingInfo()->bondRings();
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for (const auto& ring : rings)
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for (int ri : ring) ++BondRings[ri];
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}
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{
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for (unsigned int& AtomRing : AtomRings) AtomRing = 0;
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const RingInfo::VECT_INT_VECT& rings = query->getRingInfo()->atomRings();
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for (const auto& ring : rings)
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for (int ri : ring) ++AtomRings[ri];
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}
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}
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inline unsigned getNumberRings(const Bond* bond) const {
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return BondRings[bond->getIdx()];
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}
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inline unsigned getNumberRings(const Atom* atom) const {
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return AtomRings[atom->getIdx()];
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}
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};
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struct WeightedBond {
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const Bond* BondPtr;
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unsigned Weight;
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WeightedBond() : BondPtr(nullptr), Weight(0) {}
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WeightedBond(const Bond* bond, const QueryRings& r)
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: BondPtr(bond), Weight(0) {
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// score ((bond.is_in_ring + atom1.is_in_ring + atom2.is_in_ring)
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if (r.getNumberRings(bond)) Weight += 1;
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if (r.getNumberRings(bond->getBeginAtom())) Weight += 1;
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if (r.getNumberRings(bond->getEndAtom())) Weight += 1;
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}
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bool operator<(const WeightedBond& r) {
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return Weight >= r.Weight; // sort in Z-A order (Rings first)
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}
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};
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void MaximumCommonSubgraph::makeInitialSeeds() {
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// build a set of initial seeds as "all" single bonds from query molecule
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std::vector<bool> excludedBonds(QueryMolecule->getNumBonds());
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for (auto&& excludedBond : excludedBonds) excludedBond = false;
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Seeds.clear();
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QueryMoleculeMatchedBonds = 0;
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QueryMoleculeMatchedAtoms = 0;
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if (!Parameters.InitialSeed.empty()) { // make user defined seed
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std::auto_ptr<const ROMol> initialSeedMolecule(
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(const ROMol*)SmartsToMol(Parameters.InitialSeed));
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// make a set of of seed as indeces and pointers to current query molecule
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// items based on matching results
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std::vector<MatchVectType> matching_substructs;
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SubstructMatch(*QueryMolecule, *initialSeedMolecule, matching_substructs);
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// loop throw all fragments of Query matched to initial seed
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for (std::vector<MatchVectType>::const_iterator ms =
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matching_substructs.begin();
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ms != matching_substructs.end(); ms++) {
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Seed seed;
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seed.ExcludedBonds = excludedBonds;
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seed.MatchResult.resize(Targets.size());
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#ifdef VERBOSE_STATISTICS_ON
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{
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++VerboseStatistics.Seed;
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++VerboseStatistics.InitialSeed;
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}
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#endif
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// add all matched atoms of the matched query fragment
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std::map<unsigned, unsigned> initialSeedToQueryAtom;
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for (const auto& msb : *ms) {
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unsigned qai = msb.second;
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unsigned sai = msb.first;
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seed.addAtom(QueryMolecule->getAtomWithIdx(qai));
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initialSeedToQueryAtom[sai] = qai;
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}
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// add all bonds (existed in initial seed !!!) between all matched atoms
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// in query
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for (const auto& msb : *ms) {
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const Atom* atom = initialSeedMolecule->getAtomWithIdx(msb.first);
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ROMol::OEDGE_ITER beg, end;
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for (boost::tie(beg, end) = initialSeedMolecule->getAtomBonds(atom);
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beg != end; beg++) {
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const Bond& initialBond = *((*initialSeedMolecule)[*beg]);
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unsigned qai1 =
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initialSeedToQueryAtom.find(initialBond.getBeginAtomIdx())
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->second;
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unsigned qai2 =
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initialSeedToQueryAtom.find(initialBond.getEndAtomIdx())->second;
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const Bond* b = QueryMolecule->getBondBetweenAtoms(qai1, qai2);
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if (!seed.ExcludedBonds[b->getIdx()]) {
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seed.addBond(b);
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seed.ExcludedBonds[b->getIdx()] = true;
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}
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}
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}
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seed.computeRemainingSize(*QueryMolecule);
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if (checkIfMatchAndAppend(seed))
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QueryMoleculeMatchedBonds = seed.getNumBonds();
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}
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} else { // create a set of seeds from each query bond
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// R1 additional performance OPTIMISATION
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// if(Parameters.BondCompareParameters.CompleteRingsOnly)
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// disable all mismatched rings, and do not generate initial seeds from such
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// disabled bonds
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// for( rings .....) for(i......)
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// if(mismatched) excludedBonds[i.......] = true;
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QueryRings r(QueryMolecule);
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std::vector<WeightedBond> wb;
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wb.reserve(QueryMolecule->getNumBonds());
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for (RWMol::ConstBondIterator bi = QueryMolecule->beginBonds();
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bi != QueryMolecule->endBonds(); bi++)
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wb.push_back(WeightedBond(*bi, r));
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for (std::vector<WeightedBond>::const_iterator bi = wb.begin();
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bi != wb.end(); bi++) {
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// R1 additional performance OPTIMISATION
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// if(excludedBonds[(*bi)->getIdx()])
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// continue;
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Seed seed;
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seed.MatchResult.resize(Targets.size());
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#ifdef VERBOSE_STATISTICS_ON
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{
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++VerboseStatistics.Seed;
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++VerboseStatistics.InitialSeed;
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}
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#endif
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seed.addAtom(bi->BondPtr->getBeginAtom());
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seed.addAtom(bi->BondPtr->getEndAtom());
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seed.ExcludedBonds = excludedBonds; // all bonds from first to current
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seed.addBond(bi->BondPtr);
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excludedBonds[bi->BondPtr->getIdx()] = true;
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seed.computeRemainingSize(*QueryMolecule);
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if (checkIfMatchAndAppend(seed)) {
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++QueryMoleculeMatchedBonds;
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} else {
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// optionally remove all such bonds from all targets TOPOLOGY where it
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// exists.
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//..........
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// disable (mark as already processed) mismatched bond in all seeds
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for (auto& Seed : Seeds)
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Seed.ExcludedBonds[bi->BondPtr->getIdx()] = true;
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#ifdef VERBOSE_STATISTICS_ON
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++VerboseStatistics.MismatchedInitialSeed;
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#endif
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}
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}
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}
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size_t nq = QueryMolecule->getNumAtoms();
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for (size_t i = 0; i < nq; i++) { // all query's atoms
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unsigned matched = 0;
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for (std::vector<Target>::const_iterator tag = Targets.begin();
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tag != Targets.end(); tag++) {
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size_t nt = tag->Molecule->getNumAtoms();
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for (size_t aj = 0; aj < nt; aj++) {
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if (tag->AtomMatchTable.at(i, aj)) {
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++matched;
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break;
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}
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}
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}
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if (matched >= ThresholdCount) ++QueryMoleculeMatchedAtoms;
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}
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}
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namespace {
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void _DFS(const Graph& g, const boost::dynamic_bitset<>& ringBonds,
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boost::dynamic_bitset<>& openBonds, unsigned vertex,
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std::vector<unsigned> apath, std::vector<unsigned>& colors,
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unsigned fromVertex) {
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std::pair<Graph::out_edge_iterator, Graph::out_edge_iterator> bonds =
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boost::out_edges(vertex, g);
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colors[vertex] = 1;
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while (bonds.first != bonds.second) {
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unsigned bIdx = g[*(bonds.first)];
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if (!ringBonds[bIdx]) {
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++bonds.first;
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continue;
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}
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// find the other vertex:
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unsigned oVertex = boost::source(*(bonds.first), g);
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if (oVertex == vertex) oVertex = boost::target((*bonds.first), g);
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++bonds.first;
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if (oVertex == fromVertex) continue;
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if (colors[oVertex] == 1) {
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// closing a cycle
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for (auto ai = apath.rbegin(); ai != apath.rend() && *ai != oVertex;
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|
++ai) {
|
|
auto epair = boost::edge(*ai, *(ai + 1), g);
|
|
CHECK_INVARIANT(epair.second, "edge not found");
|
|
openBonds.reset(g[epair.first]);
|
|
}
|
|
auto epair = boost::edge(oVertex, *apath.rbegin(), g);
|
|
CHECK_INVARIANT(epair.second, "edge not found");
|
|
openBonds.reset(g[epair.first]);
|
|
} else if (colors[oVertex] == 0) {
|
|
std::vector<unsigned> napath = apath;
|
|
napath.push_back(oVertex);
|
|
_DFS(g, ringBonds, openBonds, oVertex, napath, colors, vertex);
|
|
}
|
|
}
|
|
colors[vertex] = 2;
|
|
return;
|
|
}
|
|
|
|
bool checkIfRingsAreClosed(const Seed& fs) {
|
|
if (!fs.MoleculeFragment.Bonds.size()) return true;
|
|
|
|
bool res = true;
|
|
const auto& om = fs.MoleculeFragment.Bonds[0]->getOwningMol();
|
|
const auto ri = om.getRingInfo();
|
|
boost::dynamic_bitset<> ringBonds(om.getNumBonds());
|
|
for (const auto bond : fs.MoleculeFragment.Bonds) {
|
|
if (ri->numBondRings(bond->getIdx())) ringBonds.set(bond->getIdx());
|
|
}
|
|
boost::dynamic_bitset<> openBonds = ringBonds;
|
|
if (openBonds.any()) {
|
|
std::vector<unsigned> colors(om.getNumAtoms());
|
|
for (unsigned bi = 0; bi < openBonds.size(); ++bi) {
|
|
if (!openBonds[bi]) continue;
|
|
std::pair<Graph::edge_iterator, Graph::edge_iterator> bonds =
|
|
boost::edges(fs.Topology);
|
|
while (bonds.first != bonds.second && fs.Topology[*(bonds.first)] != bi)
|
|
++bonds.first;
|
|
CHECK_INVARIANT(bonds.first != bonds.second, "bond not found");
|
|
unsigned startVertex = boost::source(*(bonds.first), fs.Topology);
|
|
std::vector<unsigned> apath = {startVertex};
|
|
_DFS(fs.Topology, ringBonds, openBonds, startVertex, apath, colors,
|
|
om.getNumAtoms() + 1);
|
|
}
|
|
res = openBonds.none();
|
|
}
|
|
return res;
|
|
}
|
|
|
|
} // namespace
|
|
bool MaximumCommonSubgraph::growSeeds() {
|
|
bool mcsFound = false;
|
|
bool canceled = false;
|
|
unsigned steps = 99999; // steps from last progress callback call. call it
|
|
// immediately in the begining
|
|
|
|
// Find MCS -- SDF Seed growing OPTIMISATION (it works in 3 times faster)
|
|
while (!Seeds.empty()) {
|
|
if (getMaxNumberBonds() == QueryMoleculeMatchedBonds) // MCS == Query
|
|
break;
|
|
++steps;
|
|
#ifdef VERBOSE_STATISTICS_ON
|
|
VerboseStatistics.TotalSteps++;
|
|
#endif
|
|
auto si = Seeds.begin();
|
|
|
|
si->grow(*this);
|
|
{
|
|
const Seed& fs = Seeds.front();
|
|
// bigger substructure found
|
|
if (fs.CopyComplete) {
|
|
bool possibleMCS = false;
|
|
if ((!Parameters.MaximizeBonds &&
|
|
(fs.getNumAtoms() > getMaxNumberAtoms() ||
|
|
(fs.getNumAtoms() == getMaxNumberAtoms() &&
|
|
fs.getNumBonds() > getMaxNumberBonds())))) {
|
|
possibleMCS = true;
|
|
} else if (Parameters.MaximizeBonds &&
|
|
(fs.getNumBonds() > getMaxNumberBonds() ||
|
|
(fs.getNumBonds() == getMaxNumberBonds() &&
|
|
fs.getNumAtoms() > getMaxNumberAtoms()))) {
|
|
possibleMCS = true;
|
|
}
|
|
// #945: test here to see if the MCS actually has all rings closed
|
|
if (possibleMCS && Parameters.BondCompareParameters.CompleteRingsOnly) {
|
|
possibleMCS = checkIfRingsAreClosed(fs);
|
|
}
|
|
if (possibleMCS) {
|
|
mcsFound = true;
|
|
#ifdef VERBOSE_STATISTICS_ON
|
|
VerboseStatistics.MCSFoundStep = VerboseStatistics.TotalSteps;
|
|
VerboseStatistics.MCSFoundTime = nanoClock();
|
|
#endif
|
|
McsIdx.Atoms = fs.MoleculeFragment.Atoms;
|
|
McsIdx.Bonds = fs.MoleculeFragment.Bonds;
|
|
McsIdx.AtomsIdx = fs.MoleculeFragment.AtomsIdx;
|
|
McsIdx.BondsIdx = fs.MoleculeFragment.BondsIdx;
|
|
if (Parameters.Verbose) {
|
|
std::cout << VerboseStatistics.TotalSteps
|
|
<< " Seeds:" << Seeds.size() << " MCS "
|
|
<< McsIdx.Atoms.size() << " atoms, "
|
|
<< McsIdx.Bonds.size() << " bonds";
|
|
printf(" for %.4lf seconds. bond[0]=%u\n",
|
|
double(VerboseStatistics.MCSFoundTime - To) / 1000000.,
|
|
McsIdx.BondsIdx[0]);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (NotSet == si->GrowingStage) // finished
|
|
Seeds.erase(si);
|
|
if (Parameters.ProgressCallback) {
|
|
steps = 0;
|
|
Stat.NumAtoms = getMaxNumberAtoms();
|
|
Stat.NumBonds = getMaxNumberBonds();
|
|
if (!Parameters.ProgressCallback(Stat, Parameters,
|
|
Parameters.ProgressCallbackUserData)) {
|
|
canceled = true;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (mcsFound) { // postponed copy of current set of molecules for threshold <
|
|
// 1.
|
|
McsIdx.QueryMolecule = QueryMolecule;
|
|
McsIdx.Targets = Targets;
|
|
}
|
|
return !canceled;
|
|
} // namespace FMCS
|
|
|
|
struct AtomMatch { // for each seed atom (matched)
|
|
unsigned QueryAtomIdx;
|
|
unsigned TargetAtomIdx;
|
|
AtomMatch() : QueryAtomIdx(NotSet), TargetAtomIdx(NotSet) {}
|
|
};
|
|
typedef std::vector<AtomMatch> AtomMatchSet;
|
|
|
|
std::string MaximumCommonSubgraph::generateResultSMARTS(
|
|
const MCS& mcsIdx) const {
|
|
// match the result MCS with all targets to check if it is exact match or
|
|
// template
|
|
Seed seed; // result MCS
|
|
seed.ExcludedBonds.resize(mcsIdx.QueryMolecule->getNumBonds());
|
|
for (auto&& ExcludedBond : seed.ExcludedBonds) ExcludedBond = false;
|
|
std::vector<AtomMatchSet> atomMatchResult(mcsIdx.Targets.size());
|
|
std::vector<unsigned> atomIdxMap(mcsIdx.QueryMolecule->getNumAtoms());
|
|
std::vector<std::map<unsigned, const Bond*>> bondMatchSet(
|
|
mcsIdx.Bonds.size()); // key is unique BondType
|
|
std::vector<std::map<unsigned, const Atom*>> atomMatchSet(
|
|
mcsIdx.Atoms.size()); // key is unique atomic number
|
|
|
|
for (auto atom : mcsIdx.Atoms) {
|
|
atomIdxMap[atom->getIdx()] = seed.getNumAtoms();
|
|
seed.addAtom(atom);
|
|
}
|
|
for (auto bond : mcsIdx.Bonds) seed.addBond(bond);
|
|
|
|
unsigned itarget = 0;
|
|
for (auto tag = mcsIdx.Targets.begin(); tag != mcsIdx.Targets.end();
|
|
tag++, itarget++) {
|
|
match_V_t match; // THERE IS NO Bonds match INFO !!!!
|
|
bool target_matched = SubstructMatchCustomTable(
|
|
tag->Topology, *tag->Molecule, seed.Topology, *QueryMolecule,
|
|
tag->AtomMatchTable, tag->BondMatchTable, &Parameters, &match);
|
|
if (!target_matched) continue;
|
|
atomMatchResult[itarget].resize(seed.getNumAtoms());
|
|
for (match_V_t::const_iterator mit = match.begin(); mit != match.end();
|
|
mit++) {
|
|
unsigned ai = mit->first; // SeedAtomIdx
|
|
atomMatchResult[itarget][ai].QueryAtomIdx = seed.Topology[mit->first];
|
|
atomMatchResult[itarget][ai].TargetAtomIdx = tag->Topology[mit->second];
|
|
const Atom* ta =
|
|
tag->Molecule->getAtomWithIdx(tag->Topology[mit->second]);
|
|
if (ta &&
|
|
ta->getAtomicNum() != seed.MoleculeFragment.Atoms[ai]->getAtomicNum())
|
|
atomMatchSet[ai][ta->getAtomicNum()] = ta; // add
|
|
}
|
|
// AND BUILD BOND MATCH INFO
|
|
unsigned bi = 0;
|
|
for (auto bond = mcsIdx.Bonds.begin(); bond != mcsIdx.Bonds.end();
|
|
bond++, bi++) {
|
|
unsigned i = atomIdxMap[(*bond)->getBeginAtomIdx()];
|
|
unsigned j = atomIdxMap[(*bond)->getEndAtomIdx()];
|
|
unsigned ti = atomMatchResult[itarget][i].TargetAtomIdx;
|
|
unsigned tj = atomMatchResult[itarget][j].TargetAtomIdx;
|
|
const Bond* tb = tag->Molecule->getBondBetweenAtoms(ti, tj);
|
|
if (tb && (*bond)->getBondType() != tb->getBondType())
|
|
bondMatchSet[bi][tb->getBondType()] = tb; // add
|
|
}
|
|
}
|
|
|
|
// Generate result's SMARTS
|
|
|
|
RWMol mol; // create molecule from MCS for MolToSmarts()
|
|
unsigned ai = 0; // SeedAtomIdx
|
|
for (auto atom = mcsIdx.Atoms.begin(); atom != mcsIdx.Atoms.end();
|
|
atom++, ai++) {
|
|
if (Parameters.AtomTyper ==
|
|
MCSAtomCompareIsotopes) { // do '[0*]-[0*]-[13*]' for CC[13NH2]
|
|
QueryAtom a;
|
|
a.setQuery(makeAtomIsotopeQuery((int)(*atom)->getIsotope()));
|
|
mol.addAtom(&a, true, false);
|
|
} else {
|
|
QueryAtom a; // generate [#6] instead of C or c !
|
|
a.setQuery(makeAtomNumQuery((*atom)->getAtomicNum()));
|
|
// for all atomMatchSet[ai] items add atom query to template like
|
|
// [#6,#17,#9, ... ]
|
|
for (std::map<unsigned, const Atom*>::const_iterator am =
|
|
atomMatchSet[ai].begin();
|
|
am != atomMatchSet[ai].end(); am++) {
|
|
a.expandQuery(makeAtomNumQuery(am->second->getAtomicNum()),
|
|
Queries::COMPOSITE_OR);
|
|
if (Parameters.AtomCompareParameters.MatchChiralTag &&
|
|
(am->second->getChiralTag() == Atom::CHI_TETRAHEDRAL_CW ||
|
|
am->second->getChiralTag() == Atom::CHI_TETRAHEDRAL_CCW))
|
|
a.setChiralTag(am->second->getChiralTag());
|
|
}
|
|
mol.addAtom(&a, true, false);
|
|
}
|
|
}
|
|
unsigned bi = 0; // Seed Idx
|
|
for (auto bond = mcsIdx.Bonds.begin(); bond != mcsIdx.Bonds.end();
|
|
bond++, bi++) {
|
|
QueryBond b;
|
|
unsigned beginAtomIdx = atomIdxMap[(*bond)->getBeginAtomIdx()];
|
|
unsigned endAtomIdx = atomIdxMap[(*bond)->getEndAtomIdx()];
|
|
b.setBeginAtomIdx(beginAtomIdx);
|
|
b.setEndAtomIdx(endAtomIdx);
|
|
b.setQuery(makeBondOrderEqualsQuery((*bond)->getBondType()));
|
|
// add OR template if need
|
|
for (std::map<unsigned, const Bond*>::const_iterator bm =
|
|
bondMatchSet[bi].begin();
|
|
bm != bondMatchSet[bi].end(); bm++) {
|
|
b.expandQuery(makeBondOrderEqualsQuery(bm->second->getBondType()),
|
|
Queries::COMPOSITE_OR);
|
|
if (Parameters.BondCompareParameters.MatchStereo &&
|
|
bm->second->getStereo() > Bond::STEREOANY)
|
|
b.setStereo(bm->second->getStereo());
|
|
}
|
|
mol.addBond(&b, false);
|
|
}
|
|
|
|
return MolToSmarts(mol, true);
|
|
}
|
|
|
|
bool MaximumCommonSubgraph::createSeedFromMCS(size_t newQueryTarget,
|
|
Seed& newSeed) {
|
|
Seed mcs;
|
|
mcs.ExcludedBonds.resize(McsIdx.QueryMolecule->getNumBonds());
|
|
for (auto&& ExcludedBond : mcs.ExcludedBonds) ExcludedBond = false;
|
|
std::vector<unsigned> mcsAtomIdxMap(McsIdx.QueryMolecule->getNumAtoms());
|
|
|
|
for (std::vector<const Atom*>::const_iterator atom = McsIdx.Atoms.begin();
|
|
atom != McsIdx.Atoms.end(); atom++) {
|
|
mcsAtomIdxMap[(*atom)->getIdx()] = mcs.addAtom((*atom));
|
|
}
|
|
for (std::vector<const Bond*>::const_iterator bond = McsIdx.Bonds.begin();
|
|
bond != McsIdx.Bonds.end(); bond++)
|
|
mcs.addBond((*bond));
|
|
|
|
const Target& newQuery = McsIdx.Targets[newQueryTarget];
|
|
|
|
match_V_t match;
|
|
bool target_matched = SubstructMatchCustomTable(
|
|
newQuery.Topology, *newQuery.Molecule, mcs.Topology,
|
|
*McsIdx.QueryMolecule, newQuery.AtomMatchTable, newQuery.BondMatchTable,
|
|
&Parameters, &match);
|
|
if (!target_matched) return false;
|
|
|
|
AtomMatchSet atomMatchResult(mcs.getNumAtoms());
|
|
|
|
newSeed.ExcludedBonds.resize(newQuery.Molecule->getNumBonds());
|
|
for (auto&& ExcludedBond : newSeed.ExcludedBonds) ExcludedBond = false;
|
|
|
|
for (match_V_t::const_iterator mit = match.begin(); mit != match.end();
|
|
mit++) {
|
|
unsigned ai = mit->first; // SeedAtomIdx in mcs seed
|
|
atomMatchResult[ai].QueryAtomIdx = mcs.Topology[mit->first];
|
|
atomMatchResult[ai].TargetAtomIdx = newQuery.Topology[mit->second];
|
|
const Atom* ta =
|
|
newQuery.Molecule->getAtomWithIdx(newQuery.Topology[mit->second]);
|
|
newSeed.addAtom(ta);
|
|
}
|
|
|
|
for (std::vector<const Bond*>::const_iterator bond = McsIdx.Bonds.begin();
|
|
bond != McsIdx.Bonds.end(); bond++) {
|
|
unsigned i = mcsAtomIdxMap[(*bond)->getBeginAtomIdx()];
|
|
unsigned j = mcsAtomIdxMap[(*bond)->getEndAtomIdx()];
|
|
unsigned ti = atomMatchResult[i].TargetAtomIdx;
|
|
unsigned tj = atomMatchResult[j].TargetAtomIdx;
|
|
const Bond* tb = newQuery.Molecule->getBondBetweenAtoms(ti, tj);
|
|
newSeed.addBond(tb);
|
|
}
|
|
newSeed.computeRemainingSize(*newQuery.Molecule);
|
|
return true;
|
|
}
|
|
|
|
MCSResult MaximumCommonSubgraph::find(const std::vector<ROMOL_SPTR>& src_mols) {
|
|
clear();
|
|
MCSResult res;
|
|
|
|
if (src_mols.size() < 2)
|
|
throw std::runtime_error(
|
|
"FMCS. Invalid argument. mols.size() must be at least 2");
|
|
if (Parameters.Threshold > 1.0)
|
|
throw std::runtime_error(
|
|
"FMCS. Invalid argument. Parameter Threshold must be 1.0 or less.");
|
|
|
|
ThresholdCount = (unsigned)ceil((src_mols.size()) * Parameters.Threshold) -
|
|
1; // minimal required number of matched targets
|
|
if (ThresholdCount < 1) // at least one target
|
|
ThresholdCount = 1;
|
|
if (ThresholdCount > src_mols.size() - 1) // max all targets
|
|
ThresholdCount = src_mols.size() - 1;
|
|
|
|
// Selecting CompleteRingsOnly option also enables --ring-matches-ring-only.
|
|
// ring--ring and chain bonds only match chain bonds.
|
|
if (Parameters.BondCompareParameters.CompleteRingsOnly)
|
|
Parameters.BondCompareParameters.RingMatchesRingOnly = true;
|
|
|
|
for (const auto& src_mol : src_mols) {
|
|
Molecules.push_back(src_mol.get());
|
|
if (!Molecules.back()->getRingInfo()->isInitialized())
|
|
Molecules.back()->getRingInfo()->initialize(); // but do not fill out !!!
|
|
}
|
|
|
|
// sort source set of molecules by their 'size' and assume the smallest
|
|
// molecule as a query
|
|
std::stable_sort(Molecules.begin(), Molecules.end(), molPtr_NumBondLess);
|
|
|
|
for (size_t i = 0; i < Molecules.size() - ThresholdCount && !res.Canceled;
|
|
i++) {
|
|
init();
|
|
if (Targets.empty()) break;
|
|
MCSFinalMatchCheckFunction tff = Parameters.FinalMatchChecker;
|
|
if (FinalChiralityCheckFunction == Parameters.FinalMatchChecker)
|
|
Parameters.FinalMatchChecker = nullptr; // skip final chirality check for
|
|
// initial seed to allow future growing
|
|
// of it
|
|
makeInitialSeeds();
|
|
Parameters.FinalMatchChecker = tff; // restore final functor
|
|
|
|
if (Parameters.Verbose)
|
|
std::cout << "Query " << MolToSmiles(*QueryMolecule) << " "
|
|
<< QueryMolecule->getNumAtoms() << "("
|
|
<< QueryMoleculeMatchedAtoms << ") atoms, "
|
|
<< QueryMolecule->getNumBonds() << "("
|
|
<< QueryMoleculeMatchedBonds << ") bonds\n";
|
|
|
|
if (Seeds.empty()) break;
|
|
res.Canceled = growSeeds() ? false : true;
|
|
// verify what MCS is equal to one of initial seed for chirality match
|
|
if (FinalChiralityCheckFunction == Parameters.FinalMatchChecker &&
|
|
1 == getMaxNumberBonds()) {
|
|
McsIdx = MCS(); // clear
|
|
makeInitialSeeds(); // check all possible initial seeds
|
|
if (!Seeds.empty()) {
|
|
const Seed& fs = Seeds.front();
|
|
McsIdx.QueryMolecule = QueryMolecule;
|
|
McsIdx.Atoms = fs.MoleculeFragment.Atoms;
|
|
McsIdx.Bonds = fs.MoleculeFragment.Bonds;
|
|
McsIdx.AtomsIdx = fs.MoleculeFragment.AtomsIdx;
|
|
McsIdx.BondsIdx = fs.MoleculeFragment.BondsIdx;
|
|
}
|
|
|
|
} else if (i + 1 < Molecules.size() - ThresholdCount) {
|
|
Seed seed;
|
|
if (createSeedFromMCS(i, seed)) // MCS is matched with new query
|
|
Seeds.push_back(seed);
|
|
std::swap(Molecules[0],
|
|
Molecules[i + 1]); // change query molecule for threshold < 1.
|
|
}
|
|
}
|
|
|
|
res.NumAtoms = getMaxNumberAtoms();
|
|
res.NumBonds = getMaxNumberBonds();
|
|
if (res.NumBonds > 0) res.SmartsString = generateResultSMARTS(McsIdx);
|
|
|
|
#ifdef VERBOSE_STATISTICS_ON
|
|
if (Parameters.Verbose) {
|
|
unsigned itarget = 0;
|
|
for (std::vector<Target>::const_iterator tag = Targets.begin();
|
|
res.NumAtoms > 0 && tag != Targets.end(); tag++, itarget++) {
|
|
MatchVectType match;
|
|
RWMol* m = SmartsToMol(res.SmartsString.c_str());
|
|
|
|
bool target_matched = SubstructMatch(*tag->Molecule, *m, match);
|
|
if (!target_matched)
|
|
std::cout << "Target " << itarget + 1
|
|
<< (target_matched ? " matched " : " MISMATCHED ")
|
|
<< MolToSmiles(*tag->Molecule) << "\n";
|
|
delete m;
|
|
}
|
|
|
|
std::cout << "STATISTICS:\n";
|
|
std::cout << "Total Growing Steps = " << VerboseStatistics.TotalSteps
|
|
<< ", MCS found on " << VerboseStatistics.MCSFoundStep << " step";
|
|
if (VerboseStatistics.MCSFoundTime - To > 0)
|
|
printf(", for %.4lf seconds\n",
|
|
double(VerboseStatistics.MCSFoundTime - To) / 1000000.);
|
|
else
|
|
std::cout << ", for less than 1 second\n";
|
|
std::cout << "Initial Seeds = " << VerboseStatistics.InitialSeed
|
|
<< ", Mismatched " << VerboseStatistics.MismatchedInitialSeed
|
|
<< "\n";
|
|
std::cout << "Inspected Seeds = " << VerboseStatistics.Seed << "\n";
|
|
std::cout << "Rejected by BestSize = "
|
|
<< VerboseStatistics.RemainingSizeRejected << "\n";
|
|
std::cout << "SingleBondExcluded = "
|
|
<< VerboseStatistics.SingleBondExcluded << "\n";
|
|
#ifdef EXCLUDE_WRONG_COMPOSITION
|
|
std::cout << "Rejected by WrongComposition = "
|
|
<< VerboseStatistics.WrongCompositionRejected << " [ "
|
|
<< VerboseStatistics.WrongCompositionDetected << " Detected ]\n";
|
|
#endif
|
|
std::cout << "MatchCheck Seeds = " << VerboseStatistics.SeedCheck
|
|
<< "\n";
|
|
std::cout //<< "\n"
|
|
<< " MatchCalls = " << VerboseStatistics.MatchCall << "\n"
|
|
<< " MatchFound = " << VerboseStatistics.MatchCallTrue << "\n";
|
|
std::cout << " fastMatchCalls = " << VerboseStatistics.FastMatchCall << "\n"
|
|
<< " fastMatchFound = " << VerboseStatistics.FastMatchCallTrue
|
|
<< "\n";
|
|
std::cout << " slowMatchCalls = "
|
|
<< VerboseStatistics.MatchCall -
|
|
VerboseStatistics.FastMatchCallTrue
|
|
<< "\n"
|
|
<< " slowMatchFound = " << VerboseStatistics.SlowMatchCallTrue
|
|
<< "\n";
|
|
|
|
#ifdef VERBOSE_STATISTICS_FASTCALLS_ON
|
|
std::cout << "AtomFunctorCalls = " << VerboseStatistics.AtomFunctorCalls
|
|
<< "\n";
|
|
std::cout << "BondCompareCalls = " << VerboseStatistics.BondCompareCalls
|
|
<< "\n";
|
|
#endif
|
|
std::cout << " DupCacheFound = " << VerboseStatistics.DupCacheFound
|
|
<< " " << VerboseStatistics.DupCacheFoundMatch << " matched, "
|
|
<< VerboseStatistics.DupCacheFound -
|
|
VerboseStatistics.DupCacheFoundMatch
|
|
<< " mismatched\n";
|
|
#ifdef FAST_SUBSTRUCT_CACHE
|
|
std::cout << "HashCache size = " << HashCache.keyssize() << " keys\n";
|
|
std::cout << "HashCache size = " << HashCache.fullsize() << " entries\n";
|
|
std::cout << "FindHashInCache = " << VerboseStatistics.FindHashInCache
|
|
<< "\n";
|
|
std::cout << "HashFoundInCache= " << VerboseStatistics.HashKeyFoundInCache
|
|
<< "\n";
|
|
std::cout << "ExactMatchCalls = " << VerboseStatistics.ExactMatchCall
|
|
<< "\n"
|
|
<< "ExactMatchFound = " << VerboseStatistics.ExactMatchCallTrue
|
|
<< "\n";
|
|
#endif
|
|
}
|
|
#endif
|
|
|
|
clear();
|
|
return res;
|
|
}
|
|
|
|
bool MaximumCommonSubgraph::checkIfMatchAndAppend(Seed& seed) {
|
|
#ifdef VERBOSE_STATISTICS_ON
|
|
++VerboseStatistics.SeedCheck;
|
|
#endif
|
|
#ifdef FAST_SUBSTRUCT_CACHE
|
|
SubstructureCache::HashKey cacheKey;
|
|
SubstructureCache::TIndexEntry* cacheEntry = nullptr;
|
|
bool cacheEntryIsValid = false;
|
|
RDUNUSED_PARAM(cacheEntryIsValid); // unused var
|
|
#endif
|
|
|
|
bool foundInCache = false;
|
|
bool foundInDupCache = false;
|
|
|
|
{
|
|
#ifdef DUP_SUBSTRUCT_CACHE
|
|
if (DuplicateCache.find(seed.DupCacheKey, foundInCache)) {
|
|
// duplicate found. skip match() but store both seeds, because they will grow by
|
|
// different paths !!!
|
|
#ifdef VERBOSE_STATISTICS_ON
|
|
VerboseStatistics.DupCacheFound++;
|
|
VerboseStatistics.DupCacheFoundMatch += foundInCache ? 1 : 0;
|
|
#endif
|
|
if (!foundInCache) // mismatched !!!
|
|
return false;
|
|
}
|
|
foundInDupCache = foundInCache;
|
|
#endif
|
|
#ifdef FAST_SUBSTRUCT_CACHE
|
|
if (!foundInCache) {
|
|
#ifdef VERBOSE_STATISTICS_ON
|
|
++VerboseStatistics.FindHashInCache;
|
|
#endif
|
|
cacheEntry =
|
|
HashCache.find(seed, QueryAtomLabels, QueryBondLabels, cacheKey);
|
|
cacheEntryIsValid = true;
|
|
if (cacheEntry) { // possibly found. check for hash collision
|
|
#ifdef VERBOSE_STATISTICS_ON
|
|
++VerboseStatistics.HashKeyFoundInCache;
|
|
#endif
|
|
// check hash collisions (time +3%):
|
|
for (SubstructureCache::TIndexEntry::const_iterator g =
|
|
cacheEntry->begin();
|
|
!foundInCache && g != cacheEntry->end(); g++) {
|
|
if (g->m_vertices.size() != seed.getNumAtoms() ||
|
|
g->m_edges.size() != seed.getNumBonds())
|
|
continue;
|
|
#ifdef VERBOSE_STATISTICS_ON
|
|
++VerboseStatistics.ExactMatchCall;
|
|
#endif
|
|
// EXACT MATCH
|
|
foundInCache = SubstructMatchCustomTable(
|
|
(*g), *QueryMolecule, seed.Topology, *QueryMolecule,
|
|
QueryAtomMatchTable, QueryBondMatchTable, &Parameters);
|
|
#ifdef VERBOSE_STATISTICS_ON
|
|
if (foundInCache) ++VerboseStatistics.ExactMatchCallTrue;
|
|
#endif
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
bool found = foundInCache;
|
|
|
|
if (!found) {
|
|
found = match(seed);
|
|
}
|
|
|
|
Seed* newSeed = nullptr;
|
|
|
|
{
|
|
if (found) { // Store new generated seed, if found in cache or in all(-
|
|
// threshold) targets
|
|
{
|
|
newSeed = &Seeds.add(seed);
|
|
newSeed->CopyComplete = false;
|
|
}
|
|
|
|
#ifdef DUP_SUBSTRUCT_CACHE
|
|
if (!foundInDupCache && seed.getNumBonds() >= 3) // only seed with a ring
|
|
// can be duplicated -
|
|
// do not store very
|
|
// small seed in cache
|
|
DuplicateCache.add(seed.DupCacheKey, true);
|
|
#endif
|
|
#ifdef FAST_SUBSTRUCT_CACHE
|
|
if (!foundInCache) HashCache.add(seed, cacheKey, cacheEntry);
|
|
#endif
|
|
} else {
|
|
#ifdef DUP_SUBSTRUCT_CACHE
|
|
if (seed.getNumBonds() > 3)
|
|
DuplicateCache.add(seed.DupCacheKey,
|
|
false); // opt. cache mismatched duplicates too
|
|
#endif
|
|
}
|
|
}
|
|
if (newSeed)
|
|
*newSeed =
|
|
seed; // non-blocking copy for MULTI_THREAD and best CPU utilization
|
|
|
|
return found; // new matched seed has been actualy added
|
|
}
|
|
|
|
bool MaximumCommonSubgraph::match(Seed& seed) {
|
|
unsigned max_miss = Targets.size() - ThresholdCount;
|
|
unsigned missing = 0;
|
|
unsigned passed = 0;
|
|
unsigned itarget = 0;
|
|
|
|
for (std::vector<Target>::const_iterator tag = Targets.begin();
|
|
tag != Targets.end(); tag++, itarget++) {
|
|
#ifdef VERBOSE_STATISTICS_ON
|
|
{ ++VerboseStatistics.MatchCall; }
|
|
#endif
|
|
bool target_matched = false;
|
|
if (!seed.MatchResult.empty() && !seed.MatchResult[itarget].empty())
|
|
target_matched = matchIncrementalFast(seed, itarget);
|
|
if (!target_matched) { // slow full match
|
|
match_V_t match; // THERE IS NO Bonds match INFO !!!!
|
|
target_matched = SubstructMatchCustomTable(
|
|
tag->Topology, *tag->Molecule, seed.Topology, *QueryMolecule,
|
|
tag->AtomMatchTable, tag->BondMatchTable, &Parameters, &match);
|
|
// save current match info
|
|
if (target_matched) {
|
|
if (seed.MatchResult.empty()) seed.MatchResult.resize(Targets.size());
|
|
seed.MatchResult[itarget].init(seed, match, *QueryMolecule, *tag);
|
|
} else if (!seed.MatchResult.empty())
|
|
seed.MatchResult[itarget].clear(); //.Empty = true; // == fast clear();
|
|
#ifdef VERBOSE_STATISTICS_ON
|
|
if (target_matched) {
|
|
++VerboseStatistics.SlowMatchCallTrue;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
if (target_matched) {
|
|
if (++passed >= ThresholdCount) // it's enought
|
|
break;
|
|
} else { // mismatched
|
|
if (++missing > max_miss) break;
|
|
}
|
|
}
|
|
if (missing <= max_miss) {
|
|
#ifdef VERBOSE_STATISTICS_ON
|
|
++VerboseStatistics.MatchCallTrue;
|
|
#endif
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
// call it for each target, if failed perform full match check
|
|
bool MaximumCommonSubgraph::matchIncrementalFast(Seed& seed, unsigned itarget) {
|
|
// use and update results of previous match stored in the seed
|
|
#ifdef VERBOSE_STATISTICS_ON
|
|
{ ++VerboseStatistics.FastMatchCall; }
|
|
#endif
|
|
const Target& target = Targets[itarget];
|
|
TargetMatch& match = seed.MatchResult[itarget];
|
|
if (match.empty()) return false;
|
|
/*
|
|
// CHIRALITY: FinalMatchCheck:
|
|
if(Parameters.AtomCompareParameters.MatchChiralTag ||
|
|
Parameters.FinalMatchChecker) { // TEMP
|
|
match.clear();
|
|
return false;
|
|
}
|
|
*/
|
|
bool matched = false;
|
|
for (unsigned newBondSeedIdx = match.MatchedBondSize;
|
|
newBondSeedIdx < seed.getNumBonds(); newBondSeedIdx++) {
|
|
matched = false;
|
|
bool atomAdded = false;
|
|
const Bond* newBond = seed.MoleculeFragment.Bonds[newBondSeedIdx];
|
|
unsigned newBondQueryIdx = seed.MoleculeFragment.BondsIdx[newBondSeedIdx];
|
|
|
|
unsigned newBondSourceAtomSeedIdx; // seed's index of atom from which new
|
|
// bond was added
|
|
unsigned newBondAnotherAtomSeedIdx; // seed's index of atom on another end
|
|
// of the bond
|
|
unsigned i =
|
|
seed.MoleculeFragment.SeedAtomIdxMap[newBond->getBeginAtomIdx()];
|
|
unsigned j = seed.MoleculeFragment.SeedAtomIdxMap[newBond->getEndAtomIdx()];
|
|
if (i >= match.MatchedAtomSize) { // this is new atom in the seed
|
|
newBondSourceAtomSeedIdx = j;
|
|
newBondAnotherAtomSeedIdx = i;
|
|
} else {
|
|
newBondSourceAtomSeedIdx = i;
|
|
newBondAnotherAtomSeedIdx = j;
|
|
}
|
|
unsigned newBondAnotherAtomQueryIdx =
|
|
seed.MoleculeFragment.AtomsIdx[newBondAnotherAtomSeedIdx];
|
|
unsigned newBondSourceAtomQueryIdx =
|
|
seed.MoleculeFragment.AtomsIdx[newBondSourceAtomSeedIdx];
|
|
unsigned newBondSourceAtomTargetIdx =
|
|
match.TargetAtomIdx
|
|
[newBondSourceAtomQueryIdx]; // matched to newBondSourceAtomSeedIdx
|
|
|
|
const Bond* tb = nullptr;
|
|
unsigned newBondAnotherAtomTargetIdx = NotSet;
|
|
|
|
if (newBondAnotherAtomSeedIdx <
|
|
match.MatchedAtomSize) { // new bond between old atoms - both are
|
|
// matched to exact atoms in the target
|
|
newBondAnotherAtomTargetIdx =
|
|
match.TargetAtomIdx[newBondAnotherAtomQueryIdx];
|
|
tb = target.Molecule->getBondBetweenAtoms(
|
|
newBondSourceAtomTargetIdx,
|
|
newBondAnotherAtomTargetIdx); // target bond between Source and
|
|
// Another atoms
|
|
if (tb) { // bond exists, check match with query molecule
|
|
unsigned tbi = tb->getIdx();
|
|
unsigned qbi = seed.MoleculeFragment.BondsIdx[newBondSeedIdx];
|
|
if (!match.VisitedTargetBonds[tbi]) // false if target bond is already
|
|
// matched
|
|
matched = target.BondMatchTable.at(qbi, tbi);
|
|
}
|
|
} else { // enumerate all bonds from source atom in the target
|
|
const Atom* atom =
|
|
target.Molecule->getAtomWithIdx(newBondSourceAtomTargetIdx);
|
|
ROMol::OEDGE_ITER beg, end;
|
|
for (boost::tie(beg, end) = target.Molecule->getAtomBonds(atom);
|
|
beg != end; beg++) {
|
|
tb = &*((*target.Molecule)[*beg]);
|
|
if (!match.VisitedTargetBonds[tb->getIdx()]) {
|
|
newBondAnotherAtomTargetIdx = tb->getBeginAtomIdx();
|
|
if (newBondSourceAtomTargetIdx == newBondAnotherAtomTargetIdx)
|
|
newBondAnotherAtomTargetIdx = tb->getEndAtomIdx();
|
|
|
|
if (newBondAnotherAtomSeedIdx <
|
|
seed.LastAddedAtomsBeginIdx // RING: old atom, new atom in
|
|
// matched substructure must be
|
|
// new in seed
|
|
|| std::find(seed.MoleculeFragment.AtomsIdx.begin() +
|
|
seed.LastAddedAtomsBeginIdx,
|
|
seed.MoleculeFragment.AtomsIdx.begin() +
|
|
newBondAnotherAtomSeedIdx,
|
|
newBondAnotherAtomQueryIdx) ==
|
|
seed.MoleculeFragment.AtomsIdx.end()) {
|
|
if (!match.VisitedTargetAtoms[newBondAnotherAtomTargetIdx])
|
|
continue;
|
|
} else {
|
|
if (match.VisitedTargetAtoms[newBondAnotherAtomTargetIdx]) continue;
|
|
}
|
|
|
|
// check AnotherAtom and bond
|
|
matched =
|
|
target.AtomMatchTable.at(newBondAnotherAtomQueryIdx,
|
|
newBondAnotherAtomTargetIdx) &&
|
|
target.BondMatchTable.at(
|
|
seed.MoleculeFragment.BondsIdx[newBondSeedIdx], tb->getIdx());
|
|
|
|
if (matched) {
|
|
atomAdded = true;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (matched) { // update match history
|
|
if (atomAdded) { // new atom has been added
|
|
match.MatchedAtomSize++;
|
|
match.TargetAtomIdx[newBondAnotherAtomQueryIdx] =
|
|
newBondAnotherAtomTargetIdx;
|
|
match.VisitedTargetAtoms[newBondAnotherAtomTargetIdx] = true;
|
|
}
|
|
match.MatchedBondSize++;
|
|
match.TargetBondIdx[newBondQueryIdx] = tb->getIdx();
|
|
match.VisitedTargetBonds[tb->getIdx()] = true;
|
|
} else {
|
|
match.clear();
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if (match.MatchedAtomSize != seed.getNumAtoms() ||
|
|
match.MatchedBondSize !=
|
|
seed.getNumBonds()) { // number of unique items !!!
|
|
match.clear();
|
|
return false;
|
|
}
|
|
// CHIRALITY: FinalMatchCheck
|
|
if (matched && Parameters.FinalMatchChecker) {
|
|
short unsigned c1[4096]; // seed.getNumAtoms()
|
|
short unsigned c2[4096]; // seed.getNumAtoms()
|
|
for (unsigned si = 0; si < seed.getNumAtoms();
|
|
si++) { // index in the seed topology
|
|
c1[si] = si;
|
|
c2[si] = match.TargetAtomIdx[seed.Topology[si]];
|
|
}
|
|
matched = Parameters.FinalMatchChecker(
|
|
c1, c2, *QueryMolecule, seed.Topology, *target.Molecule,
|
|
target.Topology, &Parameters); // check CHIRALITY
|
|
if (!matched) match.clear();
|
|
}
|
|
#ifdef VERBOSE_STATISTICS_ON
|
|
if (matched) {
|
|
#ifdef MULTI_THREAD
|
|
Guard statlock(StatisticsMutex);
|
|
#endif
|
|
++VerboseStatistics.FastMatchCallTrue;
|
|
}
|
|
#endif
|
|
return matched;
|
|
}
|
|
} // namespace FMCS
|
|
} // namespace RDKit
|