The d3.linkHorizontal() method returns a new link generator with Horizontal tangents. It is typically used when the root is on the top/bottom edge with the children going down/up.
Syntax:
var link = d3.linkHorizontal()
.x(function(d) { return d.x; })
.y(function(d) { return d.y; });
Parameters: This function does not take any parameter.
Return Value: This method returns a new link generator.
Example:
HTML
<!DOCTYPE html><html><head>Â Â Â Â <meta charset="utf-8">Â
    <script src=    </script></head>Â
<body>Â
    <h1 style="text-align: center; color: green;">        neveropen    </h1>Â
    <h3 style="text-align: center;">        D3.js | linkHorizontal() Method    </h3>Â
    <center>    <svg id="gfg" width="200" height="200"></svg>    </center>Â
    <script>Â
        var data = [            {source: [100,25], target: [200,175]},             {source: [100,25], target: [25,175]}];                // Horizontal link generator        var link = d3.linkHorizontal()                .source(function(d) {                    return [d.source[1], d.source[0]];                })                .target(function(d) {                    return [d.target[1], d.target[0]];                });               //Adding the link paths        d3.select("#gfg")         .selectAll("path")        .data(data)        .join("path")        .attr("d", link)        .classed("link", true); Â
    </script></body>Â
</html> |
Output:
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