正如@enxaneta所评论的那样,总路径长度可以使用getTotalLength()
找到
方法
<html>
<body>
<div>
<input type="button" value="Total" onclick="TotalLength()"/>
<svg width="20%" height="20%" viewBox="0 0 60 60">
<rect id="rect"
x="10"
y="10"
rx="10"
ry="10"
height="48"
width="48"
style="stroke: black; fill: none;"
/>
</svg>
</div>
<script>
function TotalLength(){
var path = document.querySelector('#rect');
var len = (path.getTotalLength() );
alert("Path length - " + len);
};
</script>
</body>
</html>
总路径长度为:174.42px
stroke-dasharray属性是演示文稿属性
定义用于绘制轮廓的虚线和间隙的图案
形状;
当图形填充64%时,我们将计算笔划长度:174.42 * 0.64 = 111.62
间隙长度:174.42 * 0.36 = 62.79
stroke-dasharray = 111.62,62.79
<html>
<body>
<div>
<svg width="20%" height="20%" viewBox="0 0 60 60">
<rect id="rect"
x="10"
y="10"
rx="10"
ry="10"
height="48"
width="48"
stroke-dasharray="111.62,62.79"
style="stroke: black; fill: none;"
/>
<text x="20" y ="40" font-size="16px" > 64% </text>
</svg>
</div>
</body>
</html>
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