Example #1
0
  bool TinkerFormat::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;
    bool mm2Types = false;
    bool mmffTypes = pConv->IsOption("m",OBConversion::OUTOPTIONS) != NULL;
    bool mm3Types = pConv->IsOption("3",OBConversion::OUTOPTIONS) != NULL;
    bool classTypes = pConv->IsOption("c", OBConversion::OUTOPTIONS) != NULL;

    unsigned int i;
    char buffer[BUFF_SIZE];
    OBBond *bond;
    vector<OBBond*>::iterator j;

    // Before we try output of MMFF94 atom types, check if it works
    OBForceField *ff = OpenBabel::OBForceField::FindForceField("MMFF94");
    if (mmffTypes && ff && ff->Setup(mol))
      mmffTypes = ff->GetAtomTypes(mol);
    else
      mmffTypes = false; // either the force field isn't available, or it doesn't work

    if (!mmffTypes && !mm3Types && !classTypes) {
      snprintf(buffer, BUFF_SIZE, "%6d %-20s   MM2 parameters\n",mol.NumAtoms(),mol.GetTitle());
      mm2Types = true;
    }
    else if (mm3Types)
      snprintf(buffer, BUFF_SIZE, "%6d %-20s   MM3 parameters\n",mol.NumAtoms(),mol.GetTitle());
    else if (classTypes)
      snprintf(buffer, BUFF_SIZE, "%6d %-20s   Custom parameters\n",mol.NumAtoms(),mol.GetTitle());
    else
      snprintf(buffer, BUFF_SIZE, "%6d %-20s   MMFF94 parameters\n",mol.NumAtoms(),mol.GetTitle());
    ofs << buffer;

    ttab.SetFromType("INT");

    OBAtom *atom;
    string str,str1;
    int atomType;
    for(i = 1;i <= mol.NumAtoms(); i++)
      {
        atom = mol.GetAtom(i);
        str = atom->GetType();
        atomType = 0; // Something is very wrong if this doesn't get set below

        if (mm2Types) {
          ttab.SetToType("MM2");
          ttab.Translate(str1,str);
          atomType = atoi((char*)str1.c_str());
        }
        if (mmffTypes) {
          // Override the MM2 typing
          OBPairData *type = (OpenBabel::OBPairData*)atom->GetData("FFAtomType");
          if (type) {
            str1 = type->GetValue().c_str();
            atomType = atoi((char*)str1.c_str());
          }
        }
        if (mm3Types) {
          // convert to integer for MM3 typing
          atomType = SetMM3Type(atom);
        }
        if (classTypes) {
          // Atom classes are set by the user, so use those
          OBGenericData *data = atom->GetData("Atom Class");
          if (data) {
            OBPairInteger* acdata = dynamic_cast<OBPairInteger*>(data); // Could replace with C-style cast if willing to live dangerously
            if (acdata) {
              int ac = acdata->GetGenericValue();
              if (ac >= 0)
                atomType = ac;
            }
          }
        }

        snprintf(buffer, BUFF_SIZE, "%6d %2s  %12.6f%12.6f%12.6f %5d",
                 i,
                 OBElements::GetSymbol(atom->GetAtomicNum()),
                 atom->GetX(),
                 atom->GetY(),
                 atom->GetZ(),
                 atomType);
        ofs << buffer;

        for (bond = atom->BeginBond(j); bond; bond = atom->NextBond(j))
          {
            snprintf(buffer, BUFF_SIZE, "%6d", (bond->GetNbrAtom(atom))->GetIdx());
            ofs << buffer;
          }

        ofs << endl;
      }

    return(true);
  }
Example #2
0
bool TinkerFormat::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;
    bool mmffTypes = pConv->IsOption("m",OBConversion::OUTOPTIONS) != NULL;
    bool mm3Types = pConv->IsOption("3",OBConversion::OUTOPTIONS) != NULL;

    unsigned int i;
    char buffer[BUFF_SIZE];
    OBBond *bond;
    vector<OBBond*>::iterator j;

    // Before we try output of MMFF94 atom types, check if it works
    OBForceField *ff = OpenBabel::OBForceField::FindForceField("MMFF94");
    if (mmffTypes && ff && ff->Setup(mol))
        mmffTypes = ff->GetAtomTypes(mol);
    else
        mmffTypes = false; // either the force field isn't available, or it doesn't work

    if (!mmffTypes && !mm3Types)
        snprintf(buffer, BUFF_SIZE, "%6d %-20s   MM2 parameters\n",mol.NumAtoms(),mol.GetTitle());
    else if (mm3Types)
        snprintf(buffer, BUFF_SIZE, "%6d %-20s   MM3 parameters\n",mol.NumAtoms(),mol.GetTitle());
    else
        snprintf(buffer, BUFF_SIZE, "%6d %-20s   MMFF94 parameters\n",mol.NumAtoms(),mol.GetTitle());
    ofs << buffer;

    ttab.SetFromType("INT");

    OBAtom *atom;
    string str,str1;
    int atomType;
    for(i = 1; i <= mol.NumAtoms(); i++)
    {
        atom = mol.GetAtom(i);
        str = atom->GetType();
        ttab.SetToType("MM2");
        ttab.Translate(str1,str);

        if (mmffTypes && !mm3Types) {
            // Override the MM2 typing
            OBPairData *type = (OpenBabel::OBPairData*)atom->GetData("FFAtomType");
            if (type)
                str1 = type->GetValue().c_str();
        }

        // convert to integer for MM3 typing
        atomType = atoi((char*)str1.c_str());
        if (mm3Types) {
            atomType = SetMM3Type(atom);
        }

        snprintf(buffer, BUFF_SIZE, "%6d %2s  %12.6f%12.6f%12.6f %5d",
                 i,
                 etab.GetSymbol(atom->GetAtomicNum()),
                 atom->GetX(),
                 atom->GetY(),
                 atom->GetZ(),
                 atomType);
        ofs << buffer;

        for (bond = atom->BeginBond(j); bond; bond = atom->NextBond(j))
        {
            snprintf(buffer, BUFF_SIZE, "%6d", (bond->GetNbrAtom(atom))->GetIdx());
            ofs << buffer;
        }

        ofs << endl;
    }

    return(true);
}