D3 Examples - d3.layout.orbit modes

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<html xmlns="https://www.w3.org/1999/xhtml">
<head>
  <title>Orbit Layout Modes</title>
  <meta charset="utf-8" />
</head>
<style>
​
  #viz, svg {
    width: 1000px;
    height: 1000px;
  }
​
  text {
    pointer-events: none;
  }
​
  #buttons {
    position: absolute;
    top:0;
    left:0;
  }
​
  circle.ring {
    fill: none;
    stroke: black;
    stroke-width: 1px;
    stroke-opacity: .15;
​
  }
  
</style>
<script>
​
​
function makeViz() {
​
  d3.json("solarsystem.json", function(data) {drawOrbit(data)});
​
}
​
function drawOrbit(_data) {
​
  orbitScale = d3.scale.linear().domain([1, 3]).range([3.8, 1.5]).clamp(true);
  radiusScale = d3.scale.linear().domain([210.64,2500,10000,71492.68]).range([2,4,8,16]);
​
  planetColors = {Mercury: "gray", Venus: "#d6bb87", Earth: "#677188", Mars: "#7c5541", Jupiter: "#a36a3e", Saturn: "#e9ba85", Uranus: "#73cbf0", Neptune: "#6383d1"}
​
​
  orbit = d3.layout.orbit().size([500,500])
  .children(function(d) {return d.values})
  .revolution(function(d) {return 1 / d.orbital_period})
  .orbitSize(function(d) {return orbitScale(d.depth)})
  .speed(1)
  .mode("atomic")
  .nodes(_data);
​
  d3.select("svg")
.append("g")
.attr("class", "viz")
.attr("transform", "translate(50,50)")
  .selectAll("g.node").data(orbit.nodes())
  .enter()
  .append("g")
  .attr("class", "node")
  .attr("transform", function(d) {return "translate(" +d.x +"," + d.y+")"})
  .on("mouseover", nodeOver)
  .on("mouseout", nodeOut)
​
  d3.selectAll("g.node")
  .append("circle")
  .attr("r", function(d) {return d.radius ? radiusScale(d.radius) : 20})
  .style("fill", function(d) {return d.depth == 0 ? "#FFCC00" : d.depth == 1 ? planetColors[d.key] : "lightgray"});
​
  d3.selectAll("g.node").filter(function(d) {return d.depth == 1})
  .append("text")
  .text(function(d) {return d.depth == 0 ? "Sun" : d.key})
  .attr("y", 20)
  .style("text-anchor", "middle")
​
  d3.select("g.viz")
  .selectAll("circle.ring")
  .data(orbit.orbitalRings())
  .enter()
  .insert("circle", "g")
  .attr("class", "ring")
  .attr("r", function(d) {return d.r})
  .attr("cx", function(d) {return d.x})
  .attr("cy", function(d) {return d.y})
​
  d3.select("#buttons").append("button").html("solar").on("click", function() {newMode("solar")})
  d3.select("#buttons").append("button").html("flat").on("click", function() {newMode("flat")})
  d3.select("#buttons").append("button").html("atomic").on("click", function() {newMode("atomic")})
  d3.select("#buttons").append("button").html("custom").on("click", function() {newMode([4,4])})
​
  orbit.on("tick", function() {
    d3.selectAll("g.node")
      .attr("transform", function(d) {return "translate(" +d.x +"," + d.y+")"});
​
    d3.selectAll("circle.ring")
    .attr("cx", function(d) {return d.x})
    .attr("cy", function(d) {return d.y});
  });
​
  orbit.start();
​
  function newMode(_mode) {
    orbit.mode(_mode)
    .nodes(_data);
​
  d3.select("g.viz")
  .selectAll("circle.ring")
  .data(orbit.orbitalRings())
    .exit()
    .transition()
    .duration(500)
    .style("stroke-opacity", 0)
    .style("stroke-width", 3)
    .remove();
​
    d3.select("g.viz")
    .selectAll("circle.ring")
    .data(orbit.orbitalRings())
    .enter()
    .insert("circle", "g")
    .attr("class", "ring");
    
    d3.selectAll("circle.ring")
    .attr("r", function(d) {return d.r})
    .attr("cx", function(d) {return d.x})
    .attr("cy", function(d) {return d.y});
​
  }
​
  function nodeOver(d) {
    orbit.stop();
​
    if (d.depth == 2) {
      d3.select(this).append("text").text(d.label || d.key).style("text-anchor", "middle")
      .attr("y", 15)
      .attr("class", "moon");
    }
    d3.select(this).select("circle").style("stroke", "black").style("stroke-width", 3);
  }
​
  function nodeOut() {
    orbit.start();
      d3.selectAll("text.moon").remove();
    d3.selectAll("g.node > circle").style("stroke", "none").style("stroke-width", 0);    
  }
​
​
}
​
</script>
<body onload="makeViz()">
<div id="viz"><svg></svg><div id="buttons"></div></div>
<footer>
<script src="https://d3js.org/d3.v3.min.js" charset="utf-8" type="text/javascript"></script>
<script src="d3.layout.orbit.js" charset="utf-8" type="text/javascript"></script>
</footer>
</body>
</html>
    