Seven Symbols

The seven symbols supported by d3-shape. Each has a configurable area (here, 2500 square pixels) and is positioned around its centroid.

<!DOCTYPE html>
<meta charset="utf-8">
<style>

svg {
  float: left;
}

circle {
  fill: none;
  stroke: #f00;
  stroke-width: 1.5px;
}

</style>
<div style="width:700px;margin:200px auto;display:block;">
  <svg width="100" height="100"><g transform="translate(50,50)"><path data-type="symbolCircle"/><circle r="28"></circle></g></svg>
  <svg width="100" height="100"><g transform="translate(50,50)"><path data-type="symbolCross"/><circle r="35"></circle></g></svg>
  <svg width="100" height="100"><g transform="translate(50,50)"><path data-type="symbolDiamond"/><circle r="46"></circle></g></svg>
  <svg width="100" height="100"><g transform="translate(50,50)"><path data-type="symbolSquare"/><circle r="36"></circle></g></svg>
  <svg width="100" height="100"><g transform="translate(50,50)"><path data-type="symbolStar"/><circle r="47"></circle></g></svg>
  <svg width="100" height="100"><g transform="translate(50,50)"><path data-type="symbolTriangle"/><circle r="44"></circle></g></svg>
  <svg width="100" height="100"><g transform="translate(50,50)"><path data-type="symbolWye"/><circle r="37"></circle></g></svg>
</div>
<script src="https://d3js.org/d3-path.v1.min.js"></script>
<script src="https://d3js.org/d3-shape.v1.min.js"></script>
<script src="https://d3js.org/d3-selection.v1.min.js"></script>
<script src="https://d3js.org/d3-timer.v1.min.js"></script>
<script>

var symbol = d3.symbol().size(2500);

var path = d3.selectAll("path")
    .datum(function(d) { return d3[this.getAttribute("data-type")]; });

d3.timer(function(elapsed) {
  path
      .attr("d", function(d) { return symbol.type(d)(); })
      .attr("transform", function(d) { return "rotate(" + elapsed / 20 + ")"; });
});

</script>

https://d3js.org/d3-path.v1.min.js

https://d3js.org/d3-shape.v1.min.js

https://d3js.org/d3-selection.v1.min.js

https://d3js.org/d3-timer.v1.min.js