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svg图片代码data:image/svg+xml转png图片方法

news 2025/8/5 7:00:04

把代码保存为html格式的文件中,用浏览器访问,即可右键保存
从AI软件或其它网站得到svg图片代码后,把他复制到下面源码上
注意:src=""图片地址中,一些参数的含义
d=‘这里是图片代码数据’
viewBox是图片显示区域,宽,高等
fill='%23000000’这里表示颜色 ,后面6位0表示黑色,只修改后6位即可
fill-opacity为1表示图片不透明.小数为透明.其它参数不用修改

<!DOCTYPE html>
<html>
<head><meta charset="UTF-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta http-equiv="X-UA-Compatible" content="ie=edge"><title>svg转png</title>
</head>
<body>
<img id="test" src="data:image/svg+xml;
utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' 
viewBox='0 0 555 344' width='555' 
height='344'%3E%3Cpath 
fill='%23000000' 
fill-opacity='1' 
d='M33.7 33.8v-7.5c0-8.2-3.8-11.7-8.1-11.7-6.7 0-8.9 3.5-8.9'
%3E%3C/path%3E%3C/svg%3E"><p style="border:1px solid #ccc;color:red">
右键点击,图片另存为,png格式的
<img id="png"src=""href="" />
</p><script type="text/javascript">var test = document.getElementById('test');var svghtml = test.getAttribute('src');
var png = document.getElementById('png');var img = new Image();img.setAttribute('src', svghtml);img.onload = function () {var canvas = document.createElement('canvas');canvas.width = test.offsetWidth;canvas.height = test.offsetHeight;var context = canvas.getContext('2d');context.drawImage(img, 0, 0);var canvasData = canvas.toDataURL('image/png');var a = document.createElement('img');var img2 = document.createElement('img');img2.setAttribute('src', canvasData);
png.setAttribute('src', canvasData);//  img2.onload = function() {//  var a = document.createElement('a');// a.href = url;//   a.download = 'svg.png';//  a.href = img2.getAttribute('src');// a.click();//  }}
</script>
</body>
</html>