title: Removing white space around scatter3D plot
body: <p>From the following code</p>
  <pre><code>D&lt;-matrix(rnorm(100),10,10)
  layout(matrix(c(1,2),ncol=1), widths=c(4,1), heights=1.2)
  scatter3D(D[,1],D[,2],D[,3],colkey = FALSE)
  plot(D[,1],type=&quot;l&quot;)
  </code></pre>
  <p>I get the following plot <a href="https://i.stack.imgur.com/dRDGm.png" rel="nofollow noreferrer">here</a>. I would like that the scatter3D plot completely fits the layout portion assigned to it. How may I do this?</p>