Shaker

How do to use a force directed layout to see how a bunch of items can be combied.

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

.links line {
  stroke-linecap: round;
}

.nodes circle {
  stroke: #fff;
  stroke-width: 1.5px;
}

</style>
<svg width="960" height="600"></svg>
<script src="https://d3js.org/d3.v4.min.js"></script>
<script>
  
const COUNT = 20;
const KULL_FACTOR = 0.83;
const MAX_EDGE = 2;
const MIN_WEIGHT = -2;
const MAX_WEIGHT = 2;
const WEIGHT_DOMAIN = [MIN_WEIGHT, MAX_WEIGHT];

var svg = d3.select("svg"),
    width = +svg.attr("width"),
    height = +svg.attr("height");

var defs = svg.append("defs");
  
var marker = defs.append("marker");
var markerAttr = {
	"id":"arrow",
	"viewBox":"0 -5 10 10",
	"refX":15,
	"refY":0,
	"markerWidth":2,
	"markerHeight":2,
	"orient":"auto"
};
Object.keys(markerAttr).forEach(attr => 
  marker.attr(attr, markerAttr[attr]));
  
marker
  .append("path")
	.attr("d", "M0,-5L10,0L0,5")
	.attr("class","arrowHead");
  
var weightGen = d3.randomNormal(0, 1);

var linkColor = d3.scaleOrdinal()
  .domain([-2, -1, 0, 1, 2])
  .range(['red', 'red', 'black', 'green', 'green']);

var linkOpacity = d3.scaleOrdinal()
  .domain([-2, -1, 0, 1, 2])
  .range([0.6, 0.2, 0.1, 0.2, 0.6]);

var linkWidth = d3.scaleLinear()
	.domain(WEIGHT_DOMAIN)
  .range([5, 20]);
  
 var linkDistance = d3.scalePow()
	.exponent(0.8)
  .domain(WEIGHT_DOMAIN)
  .range([200, 0]);
  
 var linkStrength = d3.scalePow()
	.exponent(1)
  .domain(WEIGHT_DOMAIN)
  .range([0.1, 1]);
  
var linkLogic = d3.forceLink()
	.id(function(d) { return d.id; })
  .distance(link => linkDistance(link.weight))
  .strength(link => linkStrength(link.weight));
  
var chargeLogic = d3.forceManyBody().strength((a, b) => {
  return -100;
});

var simulation = d3.forceSimulation()
    .force("link", linkLogic)
    .force("charge", chargeLogic)
    .force("center", d3.forceCenter(width / 2, height / 2));

function randomWeight() {
  return d3.max([MIN_WEIGHT, d3.min([MAX_WEIGHT, ~~weightGen()])]);
}

function main() {
  var nodes = d3.range(0, COUNT).map(function(d){
	  return {id: "l"+d, r:~~d3.randomUniform(8, 28)()}
 	});

var node = svg.append("g")
    .attr("class", "nodes")
    .selectAll("circle")
    .data(graph.nodes)
    .enter().append("circle")
      .attr("r", 10)
      .attr("fill", '#888')
      .call(d3.drag()
          .on("start", dragstarted)
          .on("drag", dragged)
          .on("end", dragended));

node.append("title")
      .text(function(d) { return d.id; });

simulation
      .nodes(graph.nodes)
      .on("tick", ticked);

simulation
    .force("link")
    .links(graph.links);

node
        .attr("cx", function(d) { return d.x; })
        .attr("cy", function(d) { return d.y; });
  }
}

function dragstarted(d) {
  if (!d3.event.active) simulation.alphaTarget(0.3).restart();
  d.fx = d.x;
  d.fy = d.y;
}

function dragged(d) {
  d.fx = d3.event.x;
  d.fy = d3.event.y;
}

function dragended(d) {
  if (!d3.event.active) simulation.alphaTarget(0);
  d.fx = null;
  d.fy = null;
}
  
main();

</script>

https://d3js.org/d3.v4.min.js