title: Closest points of two polygons
body: <p>I have two polygons and I want to get the minimal distance and the points between this distance is measured. Of course such a point could very well lie on the edge between two nodes.</p>
  
  <p>Here is an example:</p>
  
  <p><img src="https://i.stack.imgur.com/jpPjv.png" alt="Example"></p>
  
  <p>I am looking for an algorithm that gives me the green distance and the two points.</p>