ters:</p><table class="table table-bordered params"><tr><th style="width:25%;"><code>dt</code></th><td><p>Elapsed time in seconds.</p></td></tr></table></div></div><div class="field "><a name="zoomAtArea"></a><h3 class="anchor"><code><span class="label label-meta label-meta-value" title="Used to store default values for fields and function arguments.">@:value({ duration : 1, h : 0, w : 0 })</span><a href="#zoomAtArea"><span class="identifier">zoomAtArea</span></a>(<span style="white-space:nowrap">x:<a class