title: Generate a Image with Coordinates
body: <p>I hope you can help me figure out how to solve my Problem.</p>
  
  <p>I wanted to build a online learningtyp test like this one:</p>
  
  <p><a href="http://till.schnupp.net/honey-mumfort/" rel="nofollow noreferrer">http://till.schnupp.net/honey-mumfort/</a></p>
  
  <p>The Questions are in german and the script is written in JS. 
  I get pretty much everything and how the author of this script solved the part with building the Questions and visualizing them. Now what I don't get is, how he is able to use the userinput, to visualize the userinput. The userinput is used to generate 4 Points in the coordinate system.</p>
  
  <p>How can I do that in PHP or JS?</p>
  
  <p><a href="http://till.schnupp.net/honey-mumfort/result.php?14&amp;4&amp;5&amp;20" rel="nofollow noreferrer">http://till.schnupp.net/honey-mumfort/result.php?14&amp;4&amp;5&amp;20</a></p>
  
  <p>14, 4, 5, 20 is for example the userinput, which is then transfered from the js to the resulat.php</p>
  
  <p>Now you can see this picture for example.</p>
  
  <p><a href="https://i.stack.imgur.com/pcqBp.png" rel="nofollow noreferrer">Example Picture from the Site</a></p>
  
  <p>Could you maybe kindly refer to php or js possibilites I can use to solve that problem?</p>