Function insert

source/EngineInterface/PreviewDescriptionService.cpp:37–49

    };

    void insert(PreviewDescriptionIntern& target, PreviewDescriptionIntern const& source)
    {
        auto offset = toInt(source.cells.size());
        for (auto& cell : target.cells) {
            std::set<int> newConnectionIndices;
            for (auto const& connectionIndex : cell.connectionIndices) {
                newConnectionIndices.insert(connectionIndex + offset);
            }
            cell.connectionIndices = newConnectionIndices;
        }
        target.cells.insert(target.cells.begin(), source.cells.begin(), source.cells.end());
        target.symbols.insert(target.symbols.begin(), source.symbols.begin(), source.symbols.end());
    }

    void rotate(PreviewDescriptionIntern& previewIntern, RealVector2D const& center, float angle)
    {