title: How can I fill an area below a 3D graph in MATLAB?
body: <p>I created the following 3d plot in MATLAB using the function <code>plot3</code>:</p>
  
  <p><a href="https://i.stack.imgur.com/hqdSJ.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/hqdSJ.png" alt="enter image description here"></a></p>
  
  <p>Now, I want to get a hatched area below the "2d sub-graphs" (i.e. below the blue and red curves). Unfortunately, I don't have any idea how to realize that.</p>
  
  <p>I would appreciate it very much if somebody had an idea.</p>