onstructor)<a name="3"></a></h2><p>Instantiate an instance of <tt>PointLayer</tt>.</p><pre class="codeinput">        <span class="keyword">function</span> obj = PointLayer(parent)
            obj = obj@Layer(parent);
            obj.stack = [];
        <span class="keyword">end</span>
</pre><h2>hasDataForCopy<a name="4"></a></h2><p>See <a href="Layer.html">Layer documentation</a>.</p><pre class="codeinput">        <span class="keyword">function</span> has_data = hasDataForCopy(obj)
<span class="comment">%  