eggheadio-projects/use-d3-v3-to-build-interactive-charts-with-javascript: null

.DS_Store

# use-d3-v3-to-build-interactive-charts-with-javascript

#chartArea {
  width: 500px;
  height: 400px;
  background-color: #CCC;
}

.dot {
  fill: teal;
  fill-opacity: 0.7;
  stroke: black;
}

.axis path, .axis line {
  fill: none;
  stroke: #000;
  stroke-width: 1px;
  shape-rendering: crispEdges;
}

<!DOCTYPE html>
<html>
  <head>
    <title>D3 - Data Driven Documents</title>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.16/d3.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.8.3/underscore.js"></script>
    <link rel="stylesheet" href="app.css">
  </head>
  <body>
    <div id="chartArea"></div>
    <script src="script.js"></script>
  </body>
</html>

var dataset = _.map(_.range(25), function (i) {
  return {
    x: Math.round(Math.random() * 100),
    y: Math.round(Math.random() * 100),
    r: Math.round(5 + Math.random() * 10)
  };
});

var margin = {top: 20, right: 20, bottom: 60, left: 60};

var w = 500 - margin.left - margin.right,
    h = 400 - margin.top - margin.bottom;

var svg = d3.select('#chartArea').append('svg')
  .attr('width', w + margin.left + margin.right)
  .attr('height', h + margin.top + margin.bottom)
  .append('g')
  .attr('transform', 'translate(' + margin.left + ', ' + margin.top + ')');

var xScale = d3.scale.linear()
  .domain([0, 100])
  .range([0, w]);

var xAxis = d3.svg.axis()
  .scale(xScale)
  .orient('bottom')
  .ticks(5)
  .innerTickSize(6)
  .outerTickSize(12)
  .tickPadding(12);

svg.append('g')
  .attr('class', 'x axis')
  .attr('transform', 'translate(0, '+ (h + 0) + ')')
  .call(xAxis);

var yScale = d3.scale.linear()
  .domain([0, 100])
  .range([h, 0]);

var yAxis = d3.svg.axis()
  .scale(yScale)
  .orient('left');

svg.append('g')
  .attr('class', 'y axis')
  .attr('transform', 'translate(0, 0)')
  .call(yAxis);

svg.selectAll('circle')
  .data(dataset)
  .enter()
  .append('circle')
  .attr('class', 'dot')
  .attr('cx', function (d) {
    return xScale(d.x);
})
  .attr('cy', function (d) {
    return yScale(d.y);
})
  .attr('r', function (d) {
    return d.r;
});