[ entityA : [ { time : 1230000,  // time since epoch
             attribute1 : 123 // numeric value
             attribute2 : 123 // numeric value
            },
              { time : 1230010,  // time since epoch
              attribute1 : 123 // numeric value
              attribute2 : 123 // numeric value
            } ],
  entityB : [ { ... // same format as above
  ...
 ]

var line = d3.svg.line()
        .x(function(d) {
            return x_scale(d.c_date));
        })
        .y(function(d) {
            return y_scale(d.total);
        });

canvas.append("svg:path")
            .attr("d", line(data[entity]))

var width = 400;
var height = 400;

var svg = d3.select('body')
  .append('svg')
  .attr('width', width)
  .attr('height', height);


//The data for our line
var lineData = [{
    "x": 1,
    "y": 5
  },
  {
    "x": 20,
    "y": 20
  },
  {
    "x": 40,
    "y": 10
  },
  {
    "x": 60,
    "y": 40
  },
  {
    "x": 80,
    "y": 5
  },
  {
    "x": 100,
    "y": 60
  }
];

//The line SVG Path we draw
var lineGraph = svg.append("path")
  .attr("d", d3.line()
    .x(d => d.x)
    .y(d => d.y)
    .curve(d3.curveLinear)(lineData))
    //.curve(d3.curveBasis)(lineData)) //Draws smooth joints- yumuşak birleşim noktası(mafsal) çizer
  .attr("stroke", "blue")
  .attr("stroke-width", 2)
  .attr("fill", "none");