class="special">(</span><span class="identifier">xy</span><span class="special">(</span><span class="number">6</span><span class="special">,</span> <span class="number">2</span><span class="special">));</span>
    <span class="identifier">line</span><span class="special">.</span><span class="identifier">push_back</span><span class="special">(</span><span class="identifier">xy</span><span class="special">(</span><span class="number">7</span><span class="special">,</span> <span class="number">1</span><span cl