File: xed.cpp

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/**********************************************************************
Copyright (C) 2000 by OpenEye Scientific Software, Inc.

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation version 2 of the License.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.
***********************************************************************/

#include "mol.h"

using namespace std;

namespace OpenBabel {

bool WriteXED(ostream &ofs,OBMol &mol)
{
  unsigned int i;
  char buffer[BUFF_SIZE];
  int type_name, mass;
  OBAtom *atom;
  OBBond *bond;
  string str,str1;

  ttab.SetFromType("INT"); ttab.SetToType("XED");
  sprintf(buffer,"%10.3f%10i%10i",
	  mol.GetEnergy(),mol.NumAtoms(),mol.NumBonds());
  ofs << buffer << endl;
  ofs << "File conversion by  Babel" << endl;

  for (i = 1; i <= mol.NumBonds(); i++)
    {
      bond = mol.GetBond(i);
      sprintf(buffer,"%8i%8i",
	      bond->GetBeginAtomIdx(),
	      bond->GetEndAtomIdx());
      ofs << buffer;
      if ( !((i+1) % 5) ) ofs << endl;
    }
  if (mol.NumBonds()%5) ofs << endl;

  for(i = 1;i <= mol.NumAtoms(); i++)
  {
    atom = mol.GetAtom(i);
    str = atom->GetType();
    ttab.Translate(str1,str);

    type_name = atoi((char*) str1.c_str());
    switch (type_name) {
    case 1: case 2: case 3: case 4:
      mass=6; break;
    case 5: case 6: case 7: case 8: case 9: case 23: case 25:
      mass=7; break;
    case 10: case 11: case 22: case 24: case 26:
      mass=8; break;
    case 12: case 13:
      mass=16; break;
    case 14:
      mass=15; break;
    case 15:
      mass=1; break;
    case 16:
      mass=9; break;
    case 17:
      mass=17; break;
    case 18:
      mass=35; break;
    case 19:
      mass=53; break;
    default:
      mass=0;
    }

    sprintf(buffer,"%6i%15.6f%15.6f%15.6f%6i%12.4f",
        mass, atom->GetX(),atom->GetY(),atom->GetZ(), type_name, 0.0f);
    ofs << buffer << endl;
  }
  ofs << "    1         0.0000    0         0.0000" << endl;

  return(true);
}

}