void AddMWMF(RWMol &mol,
bool pre) { // set formula & mass properties "MW_PRE" "MW_POST"
double mass = 0.0;
mass = RDKit::Descriptors::calcExactMW(mol);
/*
for (unsigned i = 0; i < mol.getNumAtoms(); i++) {
const Atom& atom = *mol.getAtomWithIdx(i);
mass += atom.getMass();
mass += atom.getNumImplicitHs() * 1.0080; // and add implicit
Hydrogens mass
}
*/
std::string formula = getMolecularFormula(mol);
if (!formula.empty()) mol.setProp((pre ? "MF_PRE" : "MF_POST"), formula);
char propertyValue[64];
snprintf(propertyValue, sizeof(propertyValue), "%g", mass);
mol.setProp((pre ? "MW_PRE" : "MW_POST"), mass);
}
void test2() {
#ifdef SUPPORT_COMPRESSED_IO
BOOST_LOG(rdInfoLog)
<< "testing writing to, then reading from compressed streams"
<< std::endl;
std::string smiles = "C1CCCC1";
std::string buff, molBlock;
RWMol *m;
m = SmilesToMol(smiles);
TEST_ASSERT(m);
TEST_ASSERT(m->getNumAtoms(5));
m->setProp(common_properties::_Name, "monkey");
io::filtering_ostream outStrm;
outStrm.push(io::gzip_compressor());
outStrm.push(io::back_inserter(buff));
TEST_ASSERT(outStrm.is_complete());
molBlock = MolToMolBlock(*m);
outStrm << molBlock;
outStrm.reset();
delete m;
io::filtering_istream inStrm;
inStrm.push(io::gzip_decompressor());
inStrm.push(boost::make_iterator_range(buff));
TEST_ASSERT(inStrm.is_complete());
unsigned int lineNo = 0;
m = MolDataStreamToMol(inStrm, lineNo);
TEST_ASSERT(m);
TEST_ASSERT(m->getNumAtoms(5));
BOOST_LOG(rdInfoLog) << "done" << std::endl;
#else
BOOST_LOG(rdInfoLog) << "Compressed IO disabled; test skipped" << std::endl;
#endif
}
int setAromaticity(RWMol &mol) {
// FIX: we will assume for now that if the input molecule came
// with aromaticity information it is correct and we will not
// touch it. Loop through the atoms and check if any atom has
// arom stuff set. We may want check this more carefully later
// and start from scratch if necessary
ROMol::AtomIterator ai;
for (ai = mol.beginAtoms(); ai != mol.endAtoms(); ai++) {
if ((*ai)->getIsAromatic()) {
// found aromatic info
return -1;
}
}
// first find the all the simple rings in the molecule
VECT_INT_VECT srings;
if (mol.getRingInfo()->isInitialized()) {
srings = mol.getRingInfo()->atomRings();
} else {
MolOps::symmetrizeSSSR(mol, srings);
}
int narom = 0;
// loop over all the atoms in the rings that can be candidates
// for aromaticity
// Atoms are candidates if
// - it is part of ring
// - has one or more electron to donate or has empty p-orbitals
int natoms = mol.getNumAtoms();
boost::dynamic_bitset<> acands(natoms);
boost::dynamic_bitset<> aseen(natoms);
VECT_EDON_TYPE edon(natoms);
VECT_INT_VECT cRings; // holder for rings that are candidates for aromaticity
for (VECT_INT_VECT_I vivi = srings.begin(); vivi != srings.end(); ++vivi) {
bool allAromatic = true;
for (INT_VECT_I ivi = (*vivi).begin(); ivi != (*vivi).end(); ++ivi) {
if (aseen[*ivi]) {
if (!acands[*ivi]) allAromatic = false;
continue;
}
aseen[*ivi] = 1;
Atom *at = mol.getAtomWithIdx(*ivi);
// now that the atom is part of ring check if it can donate
// electron or has empty orbitals. Record the donor type
// information in 'edon' - we will need it when we get to
// the Huckel rule later
edon[*ivi] = getAtomDonorTypeArom(at);
acands[*ivi] = isAtomCandForArom(at, edon[*ivi]);
if (!acands[*ivi]) allAromatic = false;
}
if (allAromatic) {
cRings.push_back((*vivi));
}
}
// first convert all rings to bonds ids
VECT_INT_VECT brings;
RingUtils::convertToBonds(cRings, brings, mol);
// make the neighbor map for the rings
// i.e. a ring is a neighbor a another candidate ring if
// shares at least one bond
// useful to figure out fused systems
INT_INT_VECT_MAP neighMap;
RingUtils::makeRingNeighborMap(brings, neighMap, maxFusedAromaticRingSize);
// now loop over all the candidate rings and check the
// huckel rule - of course paying attention to fused systems.
INT_VECT doneRs;
int curr = 0;
int cnrs = rdcast<int>(cRings.size());
boost::dynamic_bitset<> fusDone(cnrs);
INT_VECT fused;
while (curr < cnrs) {
fused.resize(0);
RingUtils::pickFusedRings(curr, neighMap, fused, fusDone);
applyHuckelToFused(mol, cRings, brings, fused, edon, neighMap, narom, 6);
int rix;
for (rix = 0; rix < cnrs; rix++) {
if (!fusDone[rix]) {
curr = rix;
break;
}
}
if (rix == cnrs) {
break;
}
}
mol.setProp(common_properties::numArom, narom, true);
return narom;
}
// ------------------------------------------------------------------
//
// Enumerates the library around a template and returns the result.
//
//
// ------------------------------------------------------------------
RWMOL_SPTR_VECT enumerateLibrary(RWMol *templateMol,
VECT_RWMOL_SPTR_VECT &sidechains,
bool orientSidechains){
PRECONDITION(templateMol,"bad molecule");
RWMOL_SPTR_VECT res,tmp;
res.push_back(RWMOL_SPTR(new RWMol(*templateMol)));
// if there's no attachment point on the molecule or no
// sidechains, return now:
if(!templateMol->hasProp(common_properties::maxAttachIdx) || sidechains.size()==0 )
return res;
int maxIdx;
templateMol->getProp(common_properties::maxAttachIdx,maxIdx);
tmp.clear();
// loop over the sidechains and attach them
for(unsigned int i=0;i<sidechains.size();i++){
int tgtMark=CONNECT_BOOKMARK_START+i;
// here's another boundary condition
if(tgtMark>maxIdx) break;
/// loop over all atoms with the appropriate mark
// This means that if a mol has two attachment points with the
// same name (e.g. two Xa's) they'll always have the same
// sidechain attached to them. This is a feature.
RWMOL_SPTR_VECT::iterator sidechainIt;
for(sidechainIt=sidechains[i].begin();
sidechainIt!=sidechains[i].end();
sidechainIt++){
// we've got our sidechain, find the atom it attaches from
if( (*sidechainIt)->hasAtomBookmark(CONNECT_BOOKMARK_START) ){
//
// NOTE: If there's more than one marked atom in the sidechain,
/// we'll only use the first for the moment.
//
int sidechainAtomIdx = (*sidechainIt)->getAtomWithBookmark(CONNECT_BOOKMARK_START)->getIdx();
// now add the sidechain to each molecule
RWMOL_SPTR_VECT::iterator templMolIt;
// loop over all the mols we've generated to this point
for(templMolIt=res.begin();templMolIt!=res.end();templMolIt++){
RWMol *templ = new RWMol(**templMolIt);
std::string name,tmpStr;
if(templ->hasProp(common_properties::_Name)){
templ->getProp(common_properties::_Name,tmpStr);
name = name + " " + tmpStr;
}
while(templ->hasAtomBookmark(tgtMark)){
// this is the atom we'll be replacing in the template
Atom *at = templ->getAtomWithBookmark(tgtMark);
// copy and transform the sidechain:
RWMol *sidechain;
if(orientSidechains){
sidechain = new RWMol(*(sidechainIt->get()));
orientSidechain(templ,sidechain,
at->getIdx(),sidechainAtomIdx);
} else {
sidechain = sidechainIt->get();
}
// FIX: need to use the actual bond order here:
molAddSidechain(templ,sidechain,
at->getIdx(),sidechainAtomIdx,
Bond::SINGLE);
if(sidechain->hasProp(common_properties::_Name)){
sidechain->getProp(common_properties::_Name,tmpStr);
name = name + " " + tmpStr;
}
templ->clearAtomBookmark(tgtMark,at);
if(orientSidechains){
delete sidechain;
}
}
//std::cout << templ << "> " << MolToSmiles(*templ) << std::endl;
if(name != "") templ->setProp(common_properties::_Name,name);
tmp.push_back(RWMOL_SPTR(templ));
}
}
}
//
// if we just made any molecules, free up the memory used by the
// existing result set and move the molecules we just generated
// over
if(tmp.size()){
#if 0
RWMOL_SPTR_VECT::iterator tmpMolIt;
for(tmpMolIt=res.begin();tmpMolIt!=res.end();tmpMolIt++){
delete *tmpMolIt;
}
#endif
res = tmp;
tmp.clear();
}
}
return res;
}
