simple genome map

<!DOCTYPE html>
<head>
  <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",1000)
     
    
    d3.json("data,json", function(error, gene) {
      console.log(gene); 
     var group =  d3.select("svg") .selectAll("g")
       .data(gene)
       .enter()
       .append("g")
       group.append("rect")
       .attr("x", function(d){return d.start})
       .attr("y", 50)
       .attr("width", function(d) {return (d.stop - d.start)})
       .attr("height", 30)
       .style("stroke", "#001dff")
       .attr("stroke-width", 2)
       .attr("fill", function(d)
  				{if (d.orientation == "forward")
          {return "aquamarine";}
           else 
             {return "aqua";}
            
            })
        group.append("text")
        .text(function(d) {return d.name})
        .attr("x" , function(d) {return d.start + (d.stop-d.start)/2})
        .attr("y", 65)
        .style("font-size", 12)
        .style("font-family", "Times")
        .style("font-weight", "bold")
        .attr("text-anchor", "middle")
        .attr("alignment-baseline", "central")
        
        
        
       
           
           
       
       
       
       
   
	
  
            
            
            });

</script>
</body>

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