html - Converting more than one SVG element to PNG in Javascript -


i have simple chart uses 3 d3.js svg elements display different stuff. want convert png. found solution on here:

function saveimage(){  var html = d3.selectall("svg")     .attr("version", 1.1)     .attr("xmlns", "http://www.w3.org/2000/svg")     .node().parentnode.innerhtml;  var imgsrc = 'data:image/svg+xml;base64,'+ btoa(html); var img = '<img src="'+imgsrc+'"/>'; d3.select("#svgdataurl").html(img); console.log(html); };

now works fine, if use 1 svg element, if try this, error:

this page contains following errors:  error on line 1 @ column 419: content @ end of document

column 419 is, of course directly between first closing < /svg> tag , next opening < svg> tag.

is possible convert 3 elements 1 picture using javascript?

i'm not familiar d3.js ,

before that, have know that, code working single svg? got error on multiple svg used right?

if is, try following code

function saveimage(){  var html = d3.selectall("svg")     .attr("version", 1.1)     .attr("xmlns", "http://www.w3.org/2000/svg")     .node().parentnode.innerhtml; for(var i=0;i<html.length;i++) { var imgsrc = 'data:image/svg+xml;base64,'+ btoa(html[i]); var img = '<img src="'+imgsrc+'"/>'; d3.select("#svgdataurl").html(img); console.log(html[i]); } };

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