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HTML Settings

Here you can Sed posuere consectetur est at lobortis. Donec ullamcorper nulla non metus auctor fringilla. Maecenas sed diam eget risus varius blandit sit amet non magna. Donec id elit non mi porta gravida at eget metus. Praesent commodo cursus magna, vel scelerisque nisl consectetur et.

              @import "bourbon"
$data-color: CornflowerBlue
$grid-color: #ccc

  font-size: em(13)

  path, line
    fill: none
    fill: $data-color

  .tick line
    fill: none
    stroke: $grid-color
    stroke-width: 1
    shape-rendering: crispEdges

  fill: none
  stroke-linecap: round
  stroke-linejoin: round
  stroke-width: 3
  stroke: $data-color

              class TimeFormatter {

  static getDefault() {
    return d3.time.format.multi([
      // See https://github.com/mbostock/d3/wiki/Time-Formatting#format_multi
      // which is required for a time.scale()
      ['.%L', function(d) { return d.getMilliseconds(); }],
      [':%S', function(d) { return d.getSeconds(); }],
      ['%I:%M', function(d) { return d.getMinutes(); }],
      ['%I %p', function(d) { return d.getHours(); }],
      ['%a %d', function(d) { return d.getDay() && d.getDate() != 1; }],
      ['%b %d', function(d) { return d.getDate() != 1; }],
      ['%B', function(d) { return d.getMonth(); }],
      ['%Y', function() { return true; }]

const formatDate = d3.time.format('%Y-%m-%d');

function drawLineGraph (options, data) {
  const description = 'Visualisation using d3.js';

  /** Make it less verbose to access default margin values */
  const margin = Object.assign(options.chart.margin);

  /** Use @mbostock's margin convention - https://bl.ocks.org/mbostock/3019563 */
  const width = options.chart.width - margin.left - margin.right;
  const height = options.chart.height - margin.top - margin.bottom;

  const allDates = [];
  const allValues = [];

  let xScale;
  let yScale;
  let xAxis;
  let yAxis;
  let lineData;

  function prepareData(data) {
    data.forEach((entry) => {

  function defineScales() {
    xScale = d3.time.scale().range([0, width]);
    yScale = d3.scale.linear().range([height, 0]);

  function defineAxes() {
    xAxis = d3.svg.axis()
      .tickPadding(10) // move tick text further away from tick lines
      .tickSize(10, 0)
    yAxis = d3.svg.axis()
      .tickPadding(10) // move tick text further away from tick lines
      .tickSize(20, 0) // add space to the right of the y axis grid line (before the first marker)
      .tickFormat((d) => { return `${d}%`; });

  function defineLineData() {
    lineData = d3.svg.line()
      .x((d) => {
        let date = formatDate.parse(d[0]);
        return xScale(date);
      .y((d) => {
        return yScale(d[1]);

  function defineScaleDomains(x, y) {
    /** Set the domain of the axes using min/max values */
    /** Given it's a percentage value from 0% to 100%, we can directly set min/max */
    y.domain([0, 100]);

  function renderGraph(options, data) {
     * Start rendering to the view
     * Note:
     *  - The styles set below are set as default. Styles should live in the graph stylesheet
     *  - Visual order is determined by the order an element gets drawn to the 'canvas'
    const svg = d3.select(`#${options.chart.id}`)
        'width': options.chart.width,
        'height': options.chart.height,
        'xmlns': 'http://www.w3.org/2000/svg',
        'version': '1.1'

    /** Roll the credits */

    const visualisation = svg.append('g')
        'id': 'visualisation',
        'transform': `translate(${margin.left}, ${margin.top})`

    const xAxisGroup = visualisation.append('g')
        'class': 'axis x',
        'transform': `translate(0, ${height})`

      .attr({'stroke': '#ccc'});

      .attr({'class': 'axis y'})

    /** Add horizontal lines to the graph as reference points */
      .attr({'class': 'grid'})
      .call(yAxis.tickSize(-width - margin.right, 0, 0).tickFormat(''))
      .attr({'stroke': '#ccc'});

        'id': 'visualisation-line',
        'stroke-linejoin': 'round',
        'fill': 'none',
        'stroke-width': '1px',
        'stroke': '#000',
        'd': lineData

        'class': 'marker',
        'r': options.chart.markerRadius,
        'cx': (d) => {
          let date = formatDate.parse(d[0]);
          return xScale(date);
        'cy': (d) => {
          return yScale(d[1]);

  defineScaleDomains(xScale, yScale);
  renderGraph(options, data);

const graphOptions = {
  chart: {
    margin: {
      top: 20,
      right: 30,
      bottom: 30,
      left: 70
    width: 620,
    height: 280,
    id: 'Graph',
    markerRadius: 5

const graphData = new Array();
for (let i = 0; i < 3; i++) {
  for (let y = 0; y < 11; y++) {
    graphData.push([`2016-${i+1}-${y+1}`, Math.round(Math.random() * 100 / 10) * 10]);

drawLineGraph(graphOptions, graphData);

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