Javascript examples for Chart.js:Chart Data
Converting Chart.js canvas chart to image using .toDataUrl()
<html> <head> <meta name="viewport" content="width=device-width, initial-scale=1"> <style id="compiled-css" type="text/css"> canvas{/*from w w w.j a v a 2 s . co m*/ } img { border: 1px dashed red; } </style> <script type="text/javascript"> window.onload=function(){ var lineChartData = { labels : ["January","February","March","April","May","June","July"], datasets : [ { fillColor : "rgba(220,220,220,0.5)", strokeColor : "rgba(220,220,220,1)", pointColor : "rgba(220,220,220,1)", pointStrokeColor : "#fff", data : [65,59,90,81,56,55,40], bezierCurve : false } ] } function done(){ console.log("haha"); var url=myLine.toBase64Image(); document.getElementById("url").src=url; } var options = { bezierCurve : false, animation: { onComplete: done } }; var myLine = new Chart(document.getElementById("canvas").getContext("2d"),{ data:lineChartData, type:"line", options:options }); } </script> </head> <body> <script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.6.0/Chart.min.js"></script> <canvas id="canvas" height="450" width="600"></canvas> <img id="url"> </body> </html>