SVG Symbol
by balefrost
HTML
<svg width="100" height="100" xmlns:xlink="http://www.w3.org/1999/xlink">
<defs>
<rect id="foo" width="10" height="20" fill="red" />
</defs>
<use xlink:href="foo" x="10" y="10" />
</svg>
JavaScript
var svg = d3.select("svg");
var defs = svg.select("defs");
var wrapper = defs.append("g")
.attr("id","ex");
wrapper.append("circle")
.attr("r","10")
.attr("fill","orange");
wrapper.append("path")
.attr("d","M-7.5,-7.5 L7.5,7.5 M7.5,-7.5 L-7.5,7.5")
.attr("stroke","black")
.attr("fill","none")
.attr("stroke-width","5")
var inserted = svg.selectAll("use.pt").data([1, 5, 3, 7, 8]).enter();
inserted.append("use").classed("pt", true)
.attr("x", function(d, i) { return 10 * (i + 1); })
.attr("y", function(d) { return 10 * d; });
inserted.each(function() {
this.setAttributeNS("http://www.w3.org/1999/xlink", "href", "ex");
});