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linkElements.attr("x1", function(d) { return d.source.x; })        .attr("y1", function(d) { return d.source.y; })        .attr("x2", function(d) {              return getTargetNodeCircumferencePoint(d)[0];        })        .attr("y2", function(d) {              return getTargetNodeCircumferencePoint(d)[1];        });function getTargetNodeCircumferencePoint(d){        var t_radius = d.target.nodeWidth/2; // nodeWidth is just a custom attribute I calculate during the creation of the nodes depending on the node width        var dx = d.target.x - d.source.x;        var dy = d.target.y - d.source.y;        var gamma = Math.atan2(dy,dx); // Math.atan2 returns the angle in the correct quadrant as opposed to Math.atan        var tx = d.target.x - (Math.cos(gamma) * t_radius);        var ty = d.target.y - (Math.sin(gamma) * t_radius);        return [tx,ty]; }