[gmx-users] False Atommass and charge?

[GtrAngus]

Hi Justin,

sorry, I forgot you don't see raw texts in the mails. Here is my C-Code:


static int analyze_frame(t_topology *top, t_trxframe *fr, t_pbc *pbc,
              int nr, gmx_ana_selection_t *sel[], void *data)
{
  const rvec *pos = fr->x; // positions
  
  const int numAtoms = fr->natoms; // totale number of atoms in the box

  cout << "Atom position: " << pos[0][XX] << endl; // position atom 1 in the
box

  cout << "Atom mass: " << top->atoms.atom[0].m << endl; // returns the mass
of atom 1

  return 0;
}


So the code seems right (referring to your post) but why is the mass with
~E-33 so low?? And I discovered something strange this very moment: After
compiling my programm, I run it 2 times and every time the mass is different
??? Now I am totally confused.

Best GtrAngus

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