, we need to copy the old data</span></div>
<div class="line"><a id="l00281" name="l00281"></a><span class="lineno">  281</span>                             Offset2D offset_begin{begin[1], begin[0]};</div>
<div class="line"><a id="l00282" name="l00282"></a><span class="lineno">  282</span>                             Offset2D offset_end{end[1], end[0]};</div>
<div class="line"><a id="l00283" name="l00283"></a><span class="lineno">  283</span>                             Extent2D extent = as_extent(offset_en