Function updateLabels

src/meshTools/sets/topoSets/topoSet.C:137–180

Update stored cell numbers using map. Do in two passes to prevent allocation if nothing changed.

// Update stored cell numbers using map.
// Do in two passes to prevent allocation if nothing changed.
void Foam::topoSet::updateLabels(const labelList& map)
{
    // Iterate over map to see if anything changed
    bool changed = false;

    forAllConstIter(labelHashSet, *this, iter)
    {
        if ((iter.key() < 0) || (iter.key() > map.size()))
        {
            FatalErrorInFunction
                << "Illegal content " << iter.key() << " of set:" << name()
                << " of type " << type() << endl
                << "Value should be between 0 and " << map.size()-1
                << abort(FatalError);
        }

        const label newCelli = map[iter.key()];

        if (newCelli != iter.key())
        {
            changed = true;

            break;
        }
    }

    // Relabel (use second Map to prevent overlapping)
    if (changed)
    {
        labelHashSet newSet(2*size());

        forAllConstIter(labelHashSet, *this, iter)
        {
            const label newCelli = map[iter.key()];

            if (newCelli >= 0)
            {
                newSet.insert(newCelli);
            }
        }

        transfer(newSet);
    }
}


void Foam::topoSet::check(const label maxLabel)