本文整理汇总了C++中OBAtom::BeginNbrAtom方法的典型用法代码示例。如果您正苦于以下问题：C++ OBAtom::BeginNbrAtom方法的具体用法？C++ OBAtom::BeginNbrAtom怎么用？C++ OBAtom::BeginNbrAtom使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类OBAtom的用法示例。
在下文中一共展示了OBAtom::BeginNbrAtom方法的4个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: AssignTypes
void OBAtomTyper::AssignTypes(OBMol &mol)
{
if (!_init)
Init();
obErrorLog.ThrowError(__FUNCTION__,
"Ran OpenBabel::AssignTypes", obAuditMsg);
mol.SetAtomTypesPerceived();
vector<vector<int> >::iterator j;
vector<pair<OBSmartsPattern*,string> >::iterator i;
for (i = _vexttyp.begin();i != _vexttyp.end();++i)
if (i->first->Match(mol))
{
_mlist = i->first->GetMapList();
for (j = _mlist.begin();j != _mlist.end();++j)
mol.GetAtom((*j)[0])->SetType(i->second);
}
// Special cases
vector<OBAtom*>::iterator a;
OBAtom* atom;
for (atom = mol.BeginAtom(a); atom; atom = mol.NextAtom(a)) {
// guanidinium. Fixes PR#1800964
if (strncasecmp(atom->GetType(),"C2", 2) == 0) {
int guanidineN = 0;
OBAtom *nbr;
vector<OBBond*>::iterator k;
for (nbr = atom->BeginNbrAtom(k);nbr;nbr = atom->NextNbrAtom(k)) {
if (strncasecmp(nbr->GetType(),"Npl", 3) == 0 ||
strncasecmp(nbr->GetType(),"N2", 2) == 0 ||
strncasecmp(nbr->GetType(),"Ng+", 3) == 0)
++guanidineN;
}
if (guanidineN == 3)
atom->SetType("C+");
} // end C2 carbon for guanidinium
} // end special cases
}示例2: WriteMolecule
//.........这里部分代码省略.........
snprintf(padded_name, sizeof(padded_name), " %-3s", tmp);
strncpy(type_name,padded_name,4);
type_name[4] = '\0';
}
else
{
/*
type_name[4] = type_name[3];
type_name[3] = type_name[2];
type_name[2] = type_name[1];
type_name[1] = type_name[0];
type_name[0] = type_name[4];
*/
type_name[4] = '\0';
}
}
res_num = res->GetNum();
}
else
{
strcpy(the_res,"UNK");
the_res[3] = '\0';
snprintf(padded_name,sizeof(padded_name), "%s",type_name);
strncpy(type_name,padded_name,4);
type_name[4] = '\0';
res_num = 1;
}
element_name = etab.GetSymbol(atom->GetAtomicNum());
int charge = atom->GetFormalCharge();
char scharge[3] = { ' ', ' ', '\0' };
if(0 != charge)
{
snprintf(scharge, 3, "%+d", charge);
char tmp = scharge[1];
scharge[1] = scharge[0];
scharge[0] = tmp;
}
snprintf(buffer, BUFF_SIZE, "%s%5d %-4s %-3s %c%4d %8.3f%8.3f%8.3f 1.00 0.00 %2s%2s\n",
het?"HETATM":"ATOM ",
i,
type_name,
the_res,
the_chain,
res_num,
atom->GetX(),
atom->GetY(),
atom->GetZ(),
element_name,
scharge);
ofs << buffer;
}
OBAtom *nbr;
vector<OBBond*>::iterator k;
for (i = 1; i <= mol.NumAtoms(); i ++)
{
atom = mol.GetAtom(i);
if (atom->GetValence() == 0)
continue; // no need to write a CONECT record -- no bonds
snprintf(buffer, BUFF_SIZE, "CONECT%5d", i);
ofs << buffer;
// Write out up to 4 real bonds per line PR#1711154
int currentValence = 0;
for (nbr = atom->BeginNbrAtom(k);nbr;nbr = atom->NextNbrAtom(k))
{
snprintf(buffer, BUFF_SIZE, "%5d", nbr->GetIdx());
ofs << buffer;
if (++currentValence % 4 == 0) {
// Add the trailing space to finish this record
ofs << " \n";
// write the start of a new CONECT record
snprintf(buffer, BUFF_SIZE, "CONECT%5d", i);
ofs << buffer;
}
}
// Add trailing spaces
int remainingValence = atom->GetValence() % 4;
for (int count = 0; count < (4 - remainingValence); count++) {
snprintf(buffer, BUFF_SIZE, " ");
ofs << buffer;
}
ofs << " \n";
}
snprintf(buffer, BUFF_SIZE, "MASTER 0 0 0 0 0 0 0 0 ");
ofs << buffer;
snprintf(buffer, BUFF_SIZE, "%4d 0 %4d 0\n",mol.NumAtoms(),mol.NumAtoms());
ofs << buffer;
ofs << "END\n";
if (model_num) {
ofs << "ENDMDL" << endl;
}
return(true);
}示例3: WriteMolecule
bool BGFFormat::WriteMolecule(OBBase* pOb, OBConversion* pConv)
{
OBMol* pmol = dynamic_cast<OBMol*>(pOb);
if(pmol==NULL)
return false;
//Define some references so we can use the old parameter names
ostream &ofs = *pConv->GetOutStream();
OBMol &mol = *pmol;
vector<OBAtom*>::iterator i;
int max_val;
OBAtom *atom;
char buffer[BUFF_SIZE];
char elmnt_typ[8], dreid_typ[8], atm_sym[16], max_val_str[8];
mol.Kekulize();
ofs << "BIOGRF 200\n";
snprintf(buffer, BUFF_SIZE, "DESCRP %s\n",mol.GetTitle());
ofs << buffer;
snprintf(buffer, BUFF_SIZE, "REMARK BGF file created by Open Babel %s\n",BABEL_VERSION);
ofs << "FORCEFIELD DREIDING \n";
// write unit cell if available
if (mol.HasData(OBGenericDataType::UnitCell))
{
OBUnitCell *uc = (OBUnitCell*)mol.GetData(OBGenericDataType::UnitCell);
// e.g. CRYSTX 49.30287 49.23010 25.45631 90.00008 89.99995 57.10041
snprintf(buffer, BUFF_SIZE,
"CRYSTX%12.5f%12.5f%12.5f%12.5f%12.5f%12.5f",
uc->GetA(), uc->GetB(), uc->GetC(),
uc->GetAlpha() , uc->GetBeta(), uc->GetGamma());
ofs << buffer << "\n";
}
ofs << "FORMAT ATOM (a6,1x,i5,1x,a5,1x,a3,1x,a1,1x,a5,3f10.5,1x,a5,i3,i2,1x,f8.5)\n";
ttab.SetFromType("INT");
for (atom = mol.BeginAtom(i);atom;atom = mol.NextAtom(i))
{
strncpy(elmnt_typ,etab.GetSymbol(atom->GetAtomicNum()), 7); // make sure to null-terminate
elmnt_typ[sizeof(elmnt_typ) - 1] = '0';
ToUpper(elmnt_typ);
ttab.SetToType("DRE");
ttab.Translate(dreid_typ,atom->GetType());
ttab.SetToType("HAD");
ttab.Translate(max_val_str,atom->GetType());
max_val = atoi(max_val_str);
if (max_val == 0)
max_val = 1;
snprintf(atm_sym,16,"%s%d",elmnt_typ,atom->GetIdx());
snprintf(buffer,BUFF_SIZE,"%6s %5d %-5s %3s %1s %5s%10.5f%10.5f%10.5f %-5s%3d%2d %8.5f\n",
"HETATM",
atom->GetIdx(),
atm_sym,
"RES",
"A",
"444",
atom->GetX(),
atom->GetY(),
atom->GetZ(),
dreid_typ,
max_val,
0,
atom->GetPartialCharge());
ofs << buffer;
}
ofs<< "FORMAT CONECT (a6,12i6)\n\n";
OBAtom *nbr;
vector<OBBond*>::iterator j;
for (atom = mol.BeginAtom(i);atom;atom = mol.NextAtom(i))
if (atom->GetValence())
{
snprintf(buffer,BUFF_SIZE,"CONECT%6d",atom->GetIdx());
ofs << buffer;
for (nbr = atom->BeginNbrAtom(j);nbr;nbr = atom->NextNbrAtom(j))
{
snprintf(buffer,BUFF_SIZE,"%6d",nbr->GetIdx());
ofs << buffer;
}
ofs << endl;
snprintf(buffer,BUFF_SIZE,"ORDER %6d",atom->GetIdx());
ofs << buffer;
for (nbr = atom->BeginNbrAtom(j);nbr;nbr = atom->NextNbrAtom(j))
{
snprintf(buffer,BUFF_SIZE,"%6d",(*j)->GetBO());
ofs << buffer;
}
ofs << endl;
}
ofs << "END" << endl;
return(true);
}示例4: WriteMolecule
//.........这里部分代码省略.........
type_name[1] = type_name[0];
type_name[0] = type_name[4];
*/
type_name[4] = '\0';
}
}
res_num = res->GetNum();
}
else
{
strcpy(the_res,"UNK");
snprintf(padded_name,sizeof(padded_name), "%s",type_name);
strncpy(type_name,padded_name,4);
type_name[4] = '\0';
res_num = 1;
}
element_name = etab.GetSymbol(atom->GetAtomicNum());
int charge = atom->GetFormalCharge();
char scharge[3] = { ' ', ' ', '\0' };
if(0 != charge)
{
snprintf(scharge, 3, "%+d", charge);
char tmp = scharge[1];
scharge[1] = scharge[0];
scharge[0] = tmp;
}
snprintf(buffer, BUFF_SIZE, "%s%5d %-4s %-3s %c%4d %8.3f%8.3f%8.3f 1.00 0.00 %2s%2s\n",
het?"HETATM":"ATOM ",
i,
type_name,
the_res,
the_chain,
res_num,
atom->GetX(),
atom->GetY(),
atom->GetZ(),
element_name,
scharge);
ofs << buffer;
}
OBAtom *nbr;
vector<OBBond*>::iterator k;
for (i = 1; i <= mol.NumAtoms(); i ++)
{
atom = mol.GetAtom(i);
if (atom->GetValence() == 0)
continue; // no need to write a CONECT record -- no bonds
snprintf(buffer, BUFF_SIZE, "CONECT%5d", i);
ofs << buffer;
// Write out up to 4 real bonds per line PR#1711154
unsigned int currentValence = 0;
for (nbr = atom->BeginNbrAtom(k);nbr;nbr = atom->NextNbrAtom(k))
{
unsigned int order = mol.GetBond(atom, nbr)->GetBondOrder();
unsigned int it_order = 0;
for( it_order = 0; it_order < order; it_order++ )
{
if (0 != currentValence && 0 == currentValence % 4)
{
// Add the trailing space to finish this record
ofs << " \n";
// write the start of a new CONECT record
snprintf(buffer, BUFF_SIZE, "CONECT%5d", i);
ofs << buffer;
}
currentValence++;
snprintf(buffer, BUFF_SIZE, "%5d", nbr->GetIdx());
ofs << buffer;
}
}
// Add trailing spaces
unsigned int remainingValence = currentValence % 4;
if( 0 < remainingValence )
{
for (int count = 0; count < (4 - remainingValence); count++)
{
snprintf(buffer, BUFF_SIZE, " ");
ofs << buffer;
}
}
ofs << " \n";
}
snprintf(buffer, BUFF_SIZE, "MASTER 0 0 0 0 0 0 0 0 ");
ofs << buffer;
snprintf(buffer, BUFF_SIZE, "%4d 0 %4d 0\n",mol.NumAtoms(),mol.NumAtoms());
ofs << buffer;
ofs << "END\n";
if (model_num) {
ofs << "ENDMDL" << endl;
}
return(true);
}