void Main() { IAtomContainer queryStructure = null; IAtomContainer targetStructure = null; { #region 1 IAtomContainer query = queryStructure; IAtomContainer target = targetStructure; Mappings mappings = Pattern.FindSubstructure(query).MatchAll(target); #endregion #region enum_mappings foreach (int[] p in mappings) { for (int i = 0; i < p.Length; i++) { // query.Atoms[i] is mapped to target.Atoms[p[i]]; } } #endregion #region stereochemistry foreach (int[] p in mappings.GetStereochemistry()) { // ... } #endregion #region unique_matches foreach (int[] p in mappings.GetUniqueAtoms()) { // ... } foreach (int[] p in mappings.GetUniqueBonds()) { // ... } #endregion { #region toarray int[][] ps = mappings.ToArray(); foreach (int[] p in ps) { // ... } #endregion } { #region limit_matches // first ten matches foreach (int[] p in mappings.Limit(10)) { // ... } // first 10 unique matches foreach (int[] p in mappings.GetUniqueAtoms().Limit(10)) { // ... } // ensure we don't waste memory and only 'fix' up to 100 unique matches int[][] ps = mappings.GetUniqueAtoms().Limit(100).ToArray(); #endregion } #region all // first 100 unique matches Mappings m1 = mappings.GetUniqueAtoms().Limit(100); // unique matches in the first 100 matches Mappings m2 = mappings.Limit(100).GetUniqueAtoms(); // first 10 unique matches in the first 100 matches Mappings m3 = mappings.Limit(100).GetUniqueAtoms().Limit(10); // number of unique atom matches int n1 = mappings.CountUnique(); // number of unique atom matches with correct stereochemistry int n2 = mappings.GetStereochemistry().CountUnique(); #endregion } { #region Filter IAtomContainer query = queryStructure; IAtomContainer target = targetStructure; // obtain only the mappings where the first atom in the query is // mapped to the first atom in the target Mappings mappings = Pattern.FindSubstructure(query) .MatchAll(target) .Filter(input => input[0] == 0); #endregion } { #region GetMapping IAtomContainer query = queryStructure; IAtomContainer target = targetStructure; Mappings mappings = Pattern.FindSubstructure(query).MatchAll(target); // a string that indicates the mapping of atom elements and numbers IEnumerable <string> strs = mappings.GetMapping( input => { StringBuilder sb = new StringBuilder(); for (int i = 0; i < input.Length; i++) { if (i > 0) { sb.Append(", "); } sb.Append(query.Atoms[i]) .Append(i + 1) .Append(" -> ") .Append(target.Atoms[input[i]]) .Append(input[i] + 1); } return(sb.ToString()); }); #endregion } { #region ToArray1 IAtomContainer query = queryStructure; IAtomContainer target = targetStructure; Pattern pat = Pattern.FindSubstructure(query); // lazily iterator foreach (int[] mapping in pat.MatchAll(target)) { // logic... } int[][] mappings = pat.MatchAll(target).ToArray(); // same as lazy iterator but we now can refer to and parse 'mappings' // to other methods without regenerating the graph match foreach (int[] mapping in mappings) { // logic... } #endregion } { #region ToArray2 IAtomContainer query = queryStructure; IAtomContainer target = targetStructure; Pattern pat = Pattern.FindSubstructure(query); // array of the first 5 unique atom mappings int[][] mappings = pat.MatchAll(target) .GetUniqueAtoms() .Limit(5) .ToArray(); #endregion } { Mappings mappings = null; #region ToAtomMap foreach (IDictionary <IAtom, IAtom> map in mappings.ToAtomMap()) { foreach (KeyValuePair <IAtom, IAtom> e in map) { IAtom queryAtom = e.Key; IAtom targetAtom = e.Value; } } #endregion } { Mappings mappings = null; #region ToBondMap foreach (IDictionary <IBond, IBond> map in mappings.ToBondMap()) { foreach (KeyValuePair <IBond, IBond> e in map) { IBond queryBond = e.Key; IBond targetBond = e.Value; } } #endregion } { IAtomContainer query = queryStructure; Mappings mappings = null; int i = 0; #region ToAtomBondMap foreach (var map in mappings.ToAtomBondMap()) { foreach (var e in map) { IChemObject queryObj = e.Key; IChemObject targetObj = e.Value; } IAtom matchedAtom = (IAtom)map[query.Atoms[i]]; IBond matchedBond = (IBond)map[query.Bonds[i]]; } #endregion } { Mappings mappings = null; #region ToChemObjects foreach (var obj in mappings.ToChemObjects()) { if (obj is IAtom) { // this atom was 'hit' by the pattern } } #endregion } { Mappings someMappings = null; #region ToSubstructures IAtomContainer target = targetStructure; Mappings mappings = someMappings; foreach (var mol in mappings.ToSubstructures()) { foreach (var atom in mol.Atoms) { target.Contains(atom); // always true } foreach (var atom in target.Atoms) { mol.Contains(atom); // not always true } } #endregion } { Mappings someMappings = null; #region AtLeast Mappings mappings = someMappings; if (mappings.AtLeast(5)) { // set bit flag etc. } // are the at least 5 unique matches? if (mappings.GetUniqueAtoms().AtLeast(5)) { // set bit etc. } #endregion } }