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我已经添加了一个SVG到画布元素。如何获得阅读SVG的viewbox属性的权限?如何在canvas元素中读取SVG的viewbox属性?
var canvas = document.getElementById('myCanvas');
var ctx = canvas.getContext('2d');
var img = new Image();
img.id = "svgObjectElement";
img.type = "image/svg+xml";
img.onload = function(){
ctx.drawImage(img,0,0);
};
img.src = "mySvg.svg";
谢谢,我曾希望在画布上添加'