拉斐尔出口到巴布亚新几内亚

Question

我有以下代码：

http://jsfiddle.net/JQPurfect/mkz4s9j3/29/

     $("#editor_save").click(function() {
           var paper = new Raphael(document.getElementById('raphaelDiv'), 200, 200);

          // circle is for testing but I need svg_paper as the canvas object
           var circle = paper.circle(50, 40, 10);
           circle.attr("fill", "#f00");
           circle.attr("stroke", "#fff");
           var circle2 = paper.circle(70, 60, 50);

           //Use raphael.export to fetch the SVG from the paper
           var svg = paper.toSVG();

           //Use canvg to draw the SVG onto the empty canvas
           canvg(document.getElementById('myCanvas'), svg);

           setTimeout(function() {
               //fetch the dataURL from the canvas and set it as src on the image
               var dataURL = document.getElementById('myCanvas').toDataURL("image/png");
               document.getElementById('myImg').src = dataURL;
           }, 100);


    });

但是我需要将 svg_paper 保存到png，但无法搞清楚。我的想法是在 svg_paper 上徒手画画，并将其保存为图像，一旦点击＆＃34;保存＆＃34;按钮。

你可以用它来更新小提琴吗？

感谢。