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Area Chart
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<!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 { background: lightgray; border: 1px solid black; } </style> </head> <body> <div class="chart"></div> <script> var margin = { top: 10, right: 10, bottom: 25, left: 25} var width = 425 - margin.left - margin.right; var height = 625 - margin.top - margin.bottom; var 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})`) var data = [ { "ticker": "AMZN", "values": [ { "date": "2016/09/30", "close": 837.31 }, { "date": "2016/09/29", "close": 829.05 }, { "date": "2016/09/28", "close": 828.72 }, { "date": "2016/09/27", "close": 816.11 }, { "date": "2016/09/26", "close": 799.16 }, { "date": "2016/09/23", "close": 805.75 }, { "date": "2016/09/22", "close": 804.7 }, { "date": "2016/09/21", "close": 789.74 }, { "date": "2016/09/20", "close": 780.22 }, { "date": "2016/09/19", "close": 775.1 }, { "date": "2016/09/16", "close": 778.52 }, { "date": "2016/09/15", "close": 769.69 }, { "date": "2016/09/14", "close": 761.09 }, { "date": "2016/09/13", "close": 761.01 }, { "date": "2016/09/12", "close": 771.49 }, { "date": "2016/09/09", "close": 760.14 }, { "date": "2016/09/08", "close": 784.06 }, { "date": "2016/09/07", "close": 784.48 }, { "date": "2016/09/06", "close": 788.87 }, { "date": "2016/09/02", "close": 772.44 }, { "date": "2016/09/01", "close": 770.62 }, { "date": "2016/08/31", "close": 769.16 }, { "date": "2016/08/30", "close": 767.58 }, { "date": "2016/08/29", "close": 771.29 }, { "date": "2016/08/26", "close": 769 }, { "date": "2016/08/25", "close": 759.22 }, { "date": "2016/08/24", "close": 757.25 }, { "date": "2016/08/23", "close": 762.45 }, { "date": "2016/08/22", "close": 759.48 }, { "date": "2016/08/19", "close": 757.31 }, { "date": "2016/08/18", "close": 764.46 }, { "date": "2016/08/17", "close": 764.63 }, { "date": "2016/08/16", "close": 764.04 }, { "date": "2016/08/15", "close": 768.49 }, { "date": "2016/08/12", "close": 772.56 }, { "date": "2016/08/11", "close": 771.24 }, { "date": "2016/08/10", "close": 768.56 }, { "date": "2016/08/09", "close": 768.31 }, { "date": "2016/08/08", "close": 766.56 }, { "date": "2016/08/05", "close": 765.98 }, { "date": "2016/08/04", "close": 760.77 }, { "date": "2016/08/03", "close": 754.64 }, { "date": "2016/08/02", "close": 760.58 }, { "date": "2016/08/01", "close": 767.74 }, { "date": "2016/07/29", "close": 758.81 }, { "date": "2016/07/28", "close": 752.61 }, { "date": "2016/07/27", "close": 736.67 }, { "date": "2016/07/26", "close": 735.59 }, { "date": "2016/07/25", "close": 739.61 }, { "date": "2016/07/22", "close": 744.86 }, { "date": "2016/07/21", "close": 744.43 }, { "date": "2016/07/20", "close": 745.72 }, { "date": "2016/07/19", "close": 739.95 }, { "date": "2016/07/18", "close": 736.07 }, { "date": "2016/07/15", "close": 735.44 }, { "date": "2016/07/14", "close": 741.2 }, { "date": "2016/07/13", "close": 742.63 }, { "date": "2016/07/12", "close": 748.21 }, { "date": "2016/07/11", "close": 753.78 }, { "date": "2016/07/08", "close": 745.81 }, { "date": "2016/07/07", "close": 736.57 }, { "date": "2016/07/06", "close": 737.61 }, { "date": "2016/07/05", "close": 728.1 }, { "date": "2016/07/01", "close": 725.68 } ] }, { "ticker": "GOOG", "values": [ { "date": "2016/09/30", "close": 777.29 }, { "date": "2016/09/29", "close": 775.01 }, { "date": "2016/09/28", "close": 781.56 }, { "date": "2016/09/27", "close": 783.01 }, { "date": "2016/09/26", "close": 774.21 }, { "date": "2016/09/23", "close": 786.9 }, { "date": "2016/09/22", "close": 787.21 }, { "date": "2016/09/21", "close": 776.22 }, { "date": "2016/09/20", "close": 771.41 }, { "date": "2016/09/19", "close": 765.7 }, { "date": "2016/09/16", "close": 768.88 }, { "date": "2016/09/15", "close": 771.76 }, { "date": "2016/09/14", "close": 762.49 }, { "date": "2016/09/13", "close": 759.69 }, { "date": "2016/09/12", "close": 769.02 }, { "date": "2016/09/09", "close": 759.66 }, { "date": "2016/09/08", "close": 775.32 }, { "date": "2016/09/07", "close": 780.35 }, { "date": "2016/09/06", "close": 780.08 }, { "date": "2016/09/02", "close": 771.46 }, { "date": "2016/09/01", "close": 768.78 }, { "date": "2016/08/31", "close": 767.05 }, { "date": "2016/08/30", "close": 769.09 }, { "date": "2016/08/29", "close": 772.15 }, { "date": "2016/08/26", "close": 769.54 }, { "date": "2016/08/25", "close": 769.41 }, { "date": "2016/08/24", "close": 769.64 }, { "date": "2016/08/23", "close": 772.08 }, { "date": "2016/08/22", "close": 772.15 }, { "date": "2016/08/19", "close": 775.42 }, { "date": "2016/08/18", "close": 777.5 }, { "date": "2016/08/17", "close": 779.91 }, { "date": "2016/08/16", "close": 777.14 }, { "date": "2016/08/15", "close": 782.44 }, { "date": "2016/08/12", "close": 783.22 }, { "date": "2016/08/11", "close": 784.85 }, { "date": "2016/08/10", "close": 784.68 }, { "date": "2016/08/09", "close": 784.26 }, { "date": "2016/08/08", "close": 781.76 }, { "date": "2016/08/05", "close": 782.22 }, { "date": "2016/08/04", "close": 771.61 }, { "date": "2016/08/03", "close": 773.18 }, { "date": "2016/08/02", "close": 771.07 }, { "date": "2016/08/01", "close": 772.88 }, { "date": "2016/07/29", "close": 768.79 }, { "date": "2016/07/28", "close": 745.91 }, { "date": "2016/07/27", "close": 741.77 }, { "date": "2016/07/26", "close": 738.42 }, { "date": "2016/07/25", "close": 739.77 }, { "date": "2016/07/22", "close": 742.74 }, { "date": "2016/07/21", "close": 738.63 }, { "date": "2016/07/20", "close": 741.19 }, { "date": "2016/07/19", "close": 736.96 }, { "date": "2016/07/18", "close": 733.78 }, { "date": "2016/07/15", "close": 719.85 }, { "date": "2016/07/14", "close": 720.95 }, { "date": "2016/07/13", "close": 716.98 }, { "date": "2016/07/12", "close": 720.64 }, { "date": "2016/07/11", "close": 715.09 }, { "date": "2016/07/08", "close": 705.63 }, { "date": "2016/07/07", "close": 695.36 }, { "date": "2016/07/06", "close": 697.77 }, { "date": "2016/07/05", "close": 694.49 }, { "date": "2016/07/01", "close": 699.21 } ] } ] // data cleansing var parseTime = d3.timeParse('%Y/%m/%d'); data.forEach(company => { company.values.forEach( d => { d.date = parseTime(d.date) d.close = +d.close }) }) // console.log(data) // console.log(d3.extent(data, co => d3.extent(co.values, d => d.close))); // console.log([ // d3.min(data, co => d3.min(co.values, d => d.close )), // d3.max(data, co => d3.max(co.values, d => d.close )) // ]) // draw y axis var yScale = d3.scaleLinear() .domain([ d3.min(data, co => d3.min(co.values, d => d.close )), d3.max(data, co => d3.max(co.values, d => d.close )) ]) .range([height, 0]) var yAxis = d3.axisLeft(yScale) svg.append('g') .attr('transform', `translate(${margin.left}, ${margin.top})`) .call(yAxis) // draw x axis var xScale = d3.scaleTime() .domain([ d3.min(data, co => d3.min(co.values, d => d.date)), d3.max(data, co => d3.max(co.values, d => d.date)) ]) .range([0, width]) var xAxis = d3.axisBottom(xScale) .ticks(5) svg.append('g') .attr('transform', `translate(0, ${height})`) .call(xAxis) // draw area chart var area = d3.area() .x(d => xScale(d.date)) .y0(yScale(yScale.domain()[0])) .y1(d => yScale(d.close)) .curve(d3.curveCatmullRom.alpha(0.5)) svg.selectAll('.area') .data(data) .enter() .append('path') .attr('class','area') .attr('d', d => area(d.values)) .style('stroke', (d, i) => ['#FF9900', '#3369E8'][i]) .style('stroke-width', 2) .style('fill', (d, i) => ['#FF9900', '#3369E8'][i]) .style('fill-opacity', 0.5) 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>
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