title: Draw great circle line on the map directly in OpenLayers 5?
body: <p>Is it possible to draw the great circle line in the OpenLayers 5 directly, without splitting the LineString into many small parts like
  <a href="https://openlayers.org/en/latest/examples/flight-animation.html" rel="nofollow noreferrer">https://openlayers.org/en/latest/examples/flight-animation.html</a>?</p>
  
  <p>Here is the problem of user experience related to the usage of the great circle line.</p>
  
  <p>The Modify Feature(<a href="https://openlayers.org/en/latest/examples/modify-test.html?q=Test" rel="nofollow noreferrer">https://openlayers.org/en/latest/examples/modify-test.html?q=Test</a>) is provided.</p>
  
  <p>The number of the editable points in the great circle line is more than that in the direct line.</p>
  
  <p>The user have to change more points because of the splitting method.</p>
  
  <p>The possible solution, I guess, could be 
  1. restrict the editable points in the Modify 
  2. drag the editable points and then create the related great cirle points</p>
  
  <p>Please advise me the possible api of OpenLayers 5 if exist or any other methods instead.</p>
  
  <p>Thank you in advance.</p>