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1 ############################################################################### 2 # # 3 # Copyright (C) 2003-2014 Edward d'Auvergne # 4 # # 5 # This file is part of the program relax (http://www.nmr-relax.com). # 6 # # 7 # This program is free software: you can redistribute it and/or modify # 8 # it under the terms of the GNU General Public License as published by # 9 # the Free Software Foundation, either version 3 of the License, or # 10 # (at your option) any later version. # 11 # # 12 # This program is distributed in the hope that it will be useful, # 13 # but WITHOUT ANY WARRANTY; without even the implied warranty of # 14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # 15 # GNU General Public License for more details. # 16 # # 17 # You should have received a copy of the GNU General Public License # 18 # along with this program. If not, see <http://www.gnu.org/licenses/>. # 19 # # 20 ############################################################################### 21 2224 """Return a valid PDB atom name of <4 characters. 25 26 @param atom_num: The number of the atom. 27 @type atom_num: int 28 @return: The atom name to use in the PDB. 29 @rtype: str 30 """ 31 32 # Init the proton first letters and the atom number folding limits. 33 names = ['H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q'] 34 lims = [0, 1000, 2000, 3000, 4000, 5000, 6000, 7000, 8000, 9000, 10000] 35 36 # Loop over the proton names. 37 for i in range(len(names)): 38 # In the bounds. 39 if atom_num >= lims[i] and atom_num < lims[i+1]: 40 return names[i] + repr(atom_num - lims[i])41
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