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JavaScript D3.js Selections with D3.js SVG

Hemachandra Dewamuni
Hemachandra Dewamuni
6,063 Points

change the radius of the circle and move it to some place

d3.select('svg').append('circle') .attr('r' = 50)

index.html
<!DOCTYPE html>
<html>
<head>
  <title></title>
</head>

<body>
  <svg width="500" height="800">
  </svg>
  <script src="js/d3.min.js" charset="utf-8"></script>
  <script type="text/javascript">
    /* your code here */



    d3.select('svg').append('circle').attr('r'='50');



  </script>
</body>

2 Answers

Sean T. Unwin
Sean T. Unwin
28,690 Points

You're doing pretty well so far. However, keep in mind that attr() is a function and when passing arguments to a function we use a comma (',') to separate them (you are using an equals sign).

Afterwards all that's needed is to set the attributes for 'cx' and 'cy' to each be '50' and that should do it. :)

so it should be d3.select('svg').append('circle').attr('r'='50').attr("cx", "50").attr("cy", "50");