In order to add columns to an existing BintableColumns, it would be good to define the following method:
void append_n (const TColumns &... columns) const
to be able to append column like (after the name does not already exists) that:
const BintableHdu& hdu = m_Mef->access<BintableHdu>(extname);
const BintableColumns& cols = hdu.columns();
const auto col_names = cols.read_all_names();
// if colname exist, writeinside it
if (std::find(col_names.begin(), col_names.end(), colnames[index]) != vec.end())
{
cols.write_n(std::forward_as_tuple(makeColumn(maps)...));
}
else // else, append it
{
cols.append_n(std::forward_as_tuple(makeColumn(maps)...));
}
(in this example, makeColumn is used to copy values into a vector from a healpix map)
In order to add columns to an existing
BintableColumns, it would be good to define the following method:to be able to append column like (after the name does not already exists) that:
(in this example,
makeColumnis used to copy values into a vector from a healpix map)