D3 Examples - data.json

xxxxxxxxxx
 
<!DOCTYPE html>
<head>
  <h1>Gene Mapping</h1>
  <meta charset="utf-8">
  <script src="https://d3js.org/d3.v4.min.js"></script>
  <style>
    body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; }
  </style>
</head>
​
<body>
  <script>
        var svg = d3.select("body").append("svg")
        .attr("width", 1000)
        .attr("height", 500)
    
    d3.json("data.json", function (error, genedata){
      d3.select("svg").selectAll("rect")
                .data(genedata)
        .enter()
        .append("rect")
                .attr("x", function (d) {
            return d.start})
                .attr("y", function (d){
            if (d.orientation == "forward") {return 100}
            else if (d.orientation == "reverse") {return 125}
          })
                .attr("width", function(d) {
            return d.stop - d.start})
                .attr("height", 50)
            .attr("fill", function(d) {
            if (d.orientation == "forward") {return "purple"}
            else if (d.orientation == "reverse") {return "red"}
      })
      
    })
    
    
     
  </script>
</body>
​
    