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Creating an SVG in Javascript, trivial example

January 20, 2015, 9:13 pm

I’m no JS coder, but for my reference below is a simple example showing how to create an SVG image in Javascript. The code below also shows how the SVG element itself might be created in JS.

UPDATE: If you’re looking at creating SVGs in Javascript, I recommend checking out FabricJS, I found it much easier to get what I wanted working.

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<html>
 
<body>
<script language="javascript">
 
var svgNS = "http://www.w3.org/2000/svg"; 
 
function do_draw() {
 
  // The following commands can be used to create an SVG programatically
  // var mySVG = document.createElementNS("http://www.w3.org/2000/svg", "svg");
  // mySVG.setAttribute("height",300);
  // mySVG.setAttribute("width" ,300);
  // document.body.appendChild(mySVG);
   
  var mySVG = document.getElementById('mySVG')
 
  var circles = document.createElementNS("http://www.w3.org/2000/svg", "circle");
  circles.setAttribute("cx",20);
  circles.setAttribute("cy",20);
  circles.setAttribute("r",20);
  mySVG.appendChild(circles);
}
 
</script>
 
 
<svg id="mySVG" style="width:300px; height:300px" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"/>
<input type="button" id="drawBtn" value="draw" onclick="do_draw()"></input><br><br>
<div id='main'></div>
 
</body>
 
</html>
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