D3 hat keine native Methode dafür. Sie können jedoch d3.mouse()
mit document.elementFromPoint()
in einem mousemove
Ereignis verbinden:
var svg = d3.select("svg");
svg.on("mousemove", function() {
var mouse = d3.mouse(this);
var elem = document.elementFromPoint(mouse[0], mouse[1]);
console.log(elem.tagName)
})
<script src="https://d3js.org/d3.v4.min.js"></script>
<svg height="150" width="500">
<rect x="50" y="20" width="150" height="100" style="fill:blue;stroke:pink;stroke-width:5;fill-opacity:0.1;stroke-opacity:0.9"/>
<ellipse cx="240" cy="50" rx="220" ry="30" style="fill:yellow"/>
<ellipse cx="220" cy="50" rx="190" ry="20" style="fill:white"/>
<circle cx="350" cy="50" r="40" stroke="black" stroke-width="3" fill="red" />
<line x1="0" y1="0" x2="200" y2="200" style="stroke:rgb(255,0,0);stroke-width:4"/>
</svg>
Mögliche Duplikat [Get Element an bestimmten Position - JavaScript] (http://stackoverflow.com/questions/1259585/ get-element-at-specified-position-javascript) – altocumulus