linechart.js

by Sajeetharan Sinnathurai

HTML

<script src="https://d3js.org/d3.v4.min.js"></script>

CSS

body {
      font: 10px sans-serif;
    }
    
    .axis path,
    .axis line {
      fill: none;
      stroke: #000;
      shape-rendering: crispEdges;
    }
    /*.x.axis path {
        display: none;
    }*/
    
    .line {
      fill: none;
      stroke: steelblue;
      stroke-width: 1.5px;
    }

JavaScript

var data =
 '{"recordsFiltered":5,"raCounts":[{"name":"comp_name","values":[{"date_":"2016","actual":170.0,"DT_RowId":"row_null"},{"date_":"2015","actual":198.0,"DT_RowId":"row_null"},{"date_":"2015","actual":149.0,"DT_RowId":"row_null"},{"date_":"2014","actual":197.0,"DT_RowId":"row_null"},{"date_":"2014","actual":146.0,"DT_RowId":"row_null"}],"DT_RowId":"row_null"}],"draw":null,"recordsTotal":5}';

data = JSON.parse(data).raCounts[0].values;


//linechart.js
data.forEach(function(d) {
   debugger;
  d.Date =  new Date(d.date_);
  d.actual = +d.actual;
  console.log(d.Date);
  return d;
});

var margin = {
    top: 30,
    right: 40,
    bottom: 30,
    left: 50
  },
  width = 600 - margin.left - margin.right,
  height = 270 - margin.top - margin.bottom;

var x = d3.scaleTime()
  .range([0, width]);

var y0 = d3.scaleLinear()
  .range([height, 0]);

// Scale the range of the data
x.domain(d3.extent(data, function(d) {
  return d.Date;
}));
y0.domain([
  d3.min(data, function(d) {
    return Math.min(d.actual);
  }),
  d3.max(data, function(d) {
    return Math.max(d.actual);
  })
]);


var valueline1 = d3.line()
  .x(function(d) {
    console.log(x(d.actual));
    return x(d.Date);
  })
  .y(function(d) {
    return y0(d.actual);
  });

var svg = d3.select("body")
  .append("svg")
  .attr("width", width + margin.left + margin.right)
  .attr("height", height + margin.top + margin.bottom)
  .append("g")
  .attr("transform",
    "translate(" + margin.left + "," + margin.top + ")");

svg.append("g") // Add the X Axis
  .attr("class", "x axis")
  .attr("transform", "translate(0," + height + ")")
  .call(d3.axisBottom(x));

// text label for the x axis
svg.append("text")
  .attr("transform",
    "translate(" + (width / 2) + " ," +
    (height + margin.top + 20) + ")")
  .style("text-anchor", "middle")
  .text("Date");

svg.append("g")
  .attr("class", "y axis")
  .style("fill", "steelblue")
  .call(d3.axisLeft(y0));


svg.append("path")
  .data([data])
 ...