title: Generate 3D surface plot from 2D coordinates
body: <p>I have a large coordinates data set, and I want to visualize the distribution in 3D format.</p>
  
  <p>I can do a bin plot in 2D like this: <a href="https://i.stack.imgur.com/tgZTR.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/tgZTR.png" alt="enter image description here"></a>
  Notice how the colour indicates different number of points within each bin. However, how could I do this in a 3D format? I want to use both the height and colour to account for numbers.</p>