quiver() in Matlab 2015b - small arrow heads
<p>I'm using <code>quiver()</code> to show flow magnitude and direction, but the arrow heads are tiny, as you can see in the figures. The arrows are scaled by AutoScaleFactor=0.1, to prevent the lines from overlapping. Changing MaxHeadSize doesn't do anything!</p>

<p><a href="https://i.stack.imgur.com/Dy7Jb.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Dy7Jb.jpg" alt="quiver plot[![][1]"></a>]<a href="https://i.stack.imgur.com/aQTS2.jpg" rel="nofollow noreferrer">2</a></p>

<p>I've read ALL the previous questions on changing the arrowhead size and style, and even downloaded some functions from MatlabCentral. But nothing seems to work. I guess the data structure of the quiver plot was changed in one of the recent Matlab versions. Specifically (taken from: <a href="https://stackoverflow.com/questions/18776172/in-matlab-how-do-i-change-the-arrow-head-style-in-quiver-plot">In Matlab how do I change the arrow head style in quiver plot?</a>), </p>

<pre><code>hq1 = quiver(x,y,u,v);
hkid = get(hq1,'children');
</code></pre>

<p>results in <code>hkid=empty</code>. </p>

<p>When I tried to use <code>annotation()</code> I ended up with arrows of odd shape and location. </p>

<p>Any help will be appreciated (including referral to an R package), thanks in advance. </p>