axes and margins - responsive

forked from areologist's block: axes and margins

<!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; }
    .chart {
      border: 1px solid hotpink;
    }
    svg {
      background-color: #f3f9fc;
      border: 1px solid blue;
    }
  </style>
</head>
<body>
  <div class="chart"></div>

const svg = d3.select('.chart')
      .append('svg')
        .attr('width', width + margin.left + margin.right)
        .attr('height', height + margin.top + margin.bottom)
				.call(responsivefy)
      .append('g')
        .attr('transform', 'translate(' + margin.left + ', ' + margin.top + ')');

svg.append('rect')
    	.attr('width', width)
    	.attr('height', height)
    	.attr('fill', 'lightblue')
    	.attr('stroke', 'green');

const yScale = d3.scaleLinear()
    	.domain([0, 100])
    	.range([height, 0]);

const yAxis = d3.axisLeft(yScale)
    	.ticks(10);
    	//.tickValues([0, 100]);

// add the axis by passing it into d3.call (and wrap it in a <g>)
    svg.append('g')
      .call(yAxis);

// let's make a date-based x axis
    const xScale = d3.scaleTime()
    	.domain([new Date(2017, 0, 1), new Date(2017, 1, 1)])
    	.range([0, width]);

const xAxis = d3.axisBottom(xScale)
    	.ticks(5)
    	.tickSize(20)
    	.tickPadding(10);

svg.append('g')
    	.attr('transform', `translate(0, ${height})`)
    	.style('font-style', 'italic')
      .call(xAxis);

function responsivefy(svg) {
      // get container + svg aspect ratio
      var container = d3.select(svg.node().parentNode),
          width = parseInt(svg.style("width")),
          height = parseInt(svg.style("height")),
          aspect = width / height;

// add viewBox and preserveAspectRatio properties,
      // and call resize so that svg resizes on inital page load
      svg.attr("viewBox", "0 0 " + width + " " + height)
          .attr("preserveAspectRatio", "xMinYMid")
          .call(resize);

// to register multiple listeners for same event type,
      // you need to add namespace, i.e., 'click.foo'
      // necessary if you call invoke this function for multiple svgs
      // api docs: https://github.com/mbostock/d3/wiki/Selections#on
      d3.select(window).on("resize." + container.attr("id"), resize);

// get width of container and resize svg to fit it
      function resize() {
          var targetWidth = parseInt(container.style("width"));
          svg.attr("width", targetWidth);
          svg.attr("height", Math.round(targetWidth / aspect));
      }
    }
  </script>
</body>

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