我感兴趣的是mouseover,mouseout,在svg路径的boundingbox上点击事件.例如,鉴于此代码:
<!doctype html>
<html>
<head>
</head>
<body>
<svg width="100%" height="100%" version="1.1"
xmlns="http://www.w3.org/2000/svg">
<circle id="circle" cx="100" cy="50" r="40" stroke="black"
stroke-width="2" />
</svg>
<script>
document.ready = (function()
{
var circle = document.getElementById('circle');
circle.setAttributeNS(null, 'fill', 'rgb(255,255,0)');
circle.onmouseover = function (e)
{
e.target.setAttributeNS(null, 'fill', 'rgb(255,0,0)');
};
circle.onmouseout = function (e)
{
e.target.setAttributeNS(null, 'fill', 'rgb(255,255,0)');
};
})();
</script>
</body>
</html>
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当你将鼠标放入和取出时,圆圈会改变填充颜色,而如果你将鼠标放入和移出边界框,我希望它能改变颜色.我已经在下面尝试了,它不起作用:
<!doctype html>
<html>
<head>
</head>
<body>
<svg width="100%" height="100%" version="1.1"
xmlns="http://www.w3.org/2000/svg">
<circle id="circle" cx="100" cy="50" r="40" stroke="black"
stroke-width="2" />
</svg>
<script>
document.ready = (function()
{
var circle = document.getElementById('circle');
circle.setAttributeNS(null, 'fill', 'rgb(255,255,0)');
circle.getBBox().onmouseover = function (e)
{
circle.setAttributeNS(null, 'fill', 'rgb(255,0,0)');
};
circle.getBBox().onmouseout = function (e)
{
circle.setAttributeNS(null, 'fill', 'rgb(255,255,0)');
};
})();
</script>
</body>
</html>
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我对使用外部库执行此任务不感兴趣.
您还可以在路径元素上使用pointer-events="boundingBox"(请参阅SVG Tiny 1.2)来获取在边界框上检测到的鼠标事件,而不是路径本身.
OperaboundingBox支持该关键字,但到目前为止还没有其他浏览器AFAIK.为了使它在任何地方都能工作,最常见的解决方案是添加一个不可见的矩形来捕获事件.
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