Old school D3 from simpler times

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Craftbd

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Gene Browser

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forked from Craftbd's block: New array flag

<!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", 960)
      .attr("height", 500)
    
		var gene = [{"fill": "blue","x": 200,"y": 200},
            		{"fill": "green","x": 200,"y": 250
                },
            		{"fill": "red","x": 200,"y": 150
                }];
    
    console.log(gene);
    
    svg.selectAll("rect")// creates a selection
    	.data(gene)// reads flag var
    	.enter() //does something about the above function.
    		.append("rect")
    		.attr("width", 200)// or .attr("width",function (d) {return d.width})
    		.attr("height", 50)
    		.attr("fill", function (d) {return d.fill;})
    		.attr("y", function(d) {return d.y;})
        .attr("x", function(d) {return d.x;})
    		// stroke can be done with this one as well
    		// d3 data binding
    
    
    /*svg.append("rect")
      .attr("y", 10)
      .attr("x", 0)
			.attr("width", 200)
    	.attr("height", 400)
    	.attr("fill", "#0055A4");
    
    svg.append("rect")
      .attr("y", 10)
      .attr("x", 200)
			.attr("width", 200)
    	.attr("height", 400)
      .attr("fill", "#FFFFFF");
    
    svg.append("rect")
      .attr("y", 10)
      .attr("x", 400)
			.attr("width", 200)
    	.attr("height", 400)
    	.attr("fill", "#EF4135");
      */
    
   
 
    
  </script>
</body>

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