Scale & Axis v2 (structured)

forked from roburidge's block: Scale & Axis example

<!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; }
    svg {
      width: 100%;
      height: 100%;
    }
  </style>
</head>

<body>
  <svg></svg>
  <script>
    var city = 'New York'; 
    var width = 900;
    var height = 300;
    var margin = {top: 20, left: 40, right: 20, bottom: 20};
    
    // dataset of city temperatures across time
    d3.tsv('data.tsv', (err, data) => {
      console.log(data)
      // clean the data
      data.forEach(d => {
        d.date = d3.timeParse('%Y%m%d')(d.date); // x
        d[city] = +d[city]; // y
      });
      
      // setup extent for x and y
      var xExtent = d3.extent(data, d => d.date);
      var yExtent = d3.extent(data, d => d[city]);
      var yMax = d3.max(data, d => d[city]);
      
			// setup scales for x and y
      var xScale = d3.scaleTime()
      	.domain(xExtent)
      	.range([margin.left, width + margin.left]);
      
      var xColorScale = d3.scaleTime()
      	.domain(xExtent)
      	.range([0, 1]);
      
      var yScale = d3.scaleLinear()
      	.domain([0, yMax])
      	.range([height + margin.top, margin.top]);
      
      // create the axis
      var xAxis = d3.axisBottom()
      	.scale(xScale)
      	.tickFormat(d3.timeFormat('%b %Y'));
      var yAxis = d3.axisLeft()
      	.scale(yScale);
      
      // draw the graph
      var svg = d3.select('svg');
      
      svg.append('g')
      	.selectAll('rect')
      	.data(data)
      	.enter().append('rect')
      	.attr('x', d => xScale(d.date))
      	.attr('y', d => yScale(d[city]))
        .attr('width', 1)
      	.attr('height', d => {
        	return (height + margin.top) - yScale(d[city]);
      	})
  			.attr('fill', d => d3.interpolateRainbow(xColorScale(d.date)))
      
      // draw the axis
      svg.append('g')
      	.attr('transform', 'translate(0, '+(margin.top+height)+')')
      	.call(xAxis);
      
      svg.append('g')
      	.attr('transform', 'translate('+margin.left+', 0)')
      	.call(yAxis)
      
    });
  </script>
</body>

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