title: D3 word cloud layout circle and rectangular
body: <p>I'm a D3 newbie and trying to build word cloud page using
  <a href="https://www.jasondavies.com/wordcloud/" rel="nofollow noreferrer">JasonDavies d3-cloud</a>.</p>
  
  <p>But sometimes all words are showing in circle layout, but sometimes in rectangular.</p>
  
  <p>How can I make them always locate in circle layout?</p>