sankey experiment 1

<!DOCTYPE html>
<head>
  <meta charset="utf-8">
  <script src="https://d3js.org/d3.v4.min.js"></script>
  <script src="https://unpkg.com/d3-sankey"></script>
  <style>
    body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; }
  </style>
</head>

<body>
  <div id="chart"></div>
  <script>
    // Feel free to change or delete any of the code you see in this editor!
    
    var margin = {top: 10, right: 10, bottom: 10, left: 10},
    width = 700 - margin.left - margin.right,
    height = 300 - margin.top - margin.bottom;
    
    var nodes = [
      {"name": "Source1"},
      {"name": "Source2"},
      {"name": "Source3"},
      {"name": "Server1"},
      {"name": "Server2"},
      {"name": "Analyst1"},
      {"name": "Analyst2"},
      
    ];

var links = [
      {"source": "Source1", "target": "Server1", "value": 10},
      {"source": "Source2", "target": "Server1", "value" : 10},
      {"source": "Source3", "target": "Server1", "value" : 10},
      {"source": "Source1", "target": "Server2", "value" : 10},
      {"source": "Source2", "target": "Server2", "value" : 10},
      {"source": "Server1", "target": "Analyst1", "value" : 10},
      {"source": "Server2", "target": "Analyst2", "value" : 10},
      
    ];
    
    var graph = {"nodes": nodes, "links" : links}
    
    
    var svg = d3.select("#chart").append("svg")
      .attr("width", width + margin.left + margin.right)
      .attr("height", height + margin.top + margin.bottom)
      .append("g")
      .attr("transform", 
            "translate(" + margin.left + "," + margin.top + ")");

var sankey = d3.sankey()
  	  .nodeWidth(36)
   	  .nodePadding(40)
    	.size([width, height])
      .nodeId(function(d) {return d.name})

var link = svg.append("g")
    .attr("class", "links")
    .attr("fill", "none")
    .attr("stroke", "#000")
    .attr("stroke-opacity", 0.2)
  .selectAll("path");
    
    var node = svg.append("g")
    .attr("class", "nodes")
    .attr("font-family", "sans-serif")
    .attr("font-size", 10)
  		.selectAll("g");
    
    sankey(graph)
 
    
    link = link
    .data(graph.links)
    .enter().append("path")
      .attr("d", d3.sankeyLinkHorizontal())
      .attr("stroke-width", function(d) { return Math.max(1, d.width); });
    
    link.append("title")
      .text(function(d) { return d.source.name + " → " + d.target.name + "\n" + d.value; });
    
    
    node = node
    .data(graph.nodes)
    .enter().append("g");

node.append("rect")
      .attr("x", function(d) { return d.x0; })
      .attr("y", function(d) { return d.y0; })
      .attr("height", function(d) { return d.y1 - d.y0; })
      .attr("width", function(d) { return d.x1 - d.x0; })
      .attr("fill", function(d) { return color(d.name.replace(/ .*/, "")); })
      .attr("stroke", "#000");

node.append("text")
      .attr("x", function(d) { return d.x0 - 6; })
      .attr("y", function(d) { return (d.y1 + d.y0) / 2; })
      .attr("dy", "0.35em")
      .attr("text-anchor", "end")
      .text(function(d) { return d.name; })
    .filter(function(d) { return d.x0 < width / 2; })
      .attr("x", function(d) { return d.x1 + 6; })
      .attr("text-anchor", "start");

node.append("title")
      .text(function(d) { return d.name + "\n" + format(d.value); });

</script>
</body>

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

https://unpkg.com/d3-sankey