"../../dart-core/double-class.html">double</a></span> <span class="parameter-name">t</span></span></li>
</ol>)
      
    </section>
    <section class="desc markdown">
      <p>Linearly interpolate between two rectangles.</p>
<p>If either rect is null, <a href="../../dart-ui/Rect/zero-constant.html">Rect.zero</a> is used as a substitute.</p>
<p>The <code>t</code> argument represents position on the timeline, with 0.0 meaning
that the interpolation has not started, returning <code>a</code> (or something
equ