This module gathers all methods provided to handle atoms with no alternate location identification and occupancy factor different from 1. An occupancy policy must be a class of the following type:
template <class Line_format> struct Occupancy_policy_concept{ //check whether an atom can directly be added to a system. //It returns -1 if not, and the number of the system otherwise. //Line_format must provide similar functionalities to ESBTL::PDB::Line_format. //line is a line of a molecular data file representing an atom. //system_index is the index of the system the line should be added (provided by the selector). int add_or_postpone(const Line_format& line_format,const std::string& line,int system_index) const{ ... } //This function is called by the builder when the whole file have been read. //Potential atom that have not already been inserted can be. The integer returned is //the number of atoms added. template <class Builder> int finalize(Builder&) const { ... } };