PULSE VISUALIZATION (PART 1)

by praveen_jegan

HTML

<script src="http://d3js.org/d3.v3.min.js"></script>
<div>#########</div>
<div id="addSVG"></div>

CSS

body {
    font: 10px sans-serif;
}
.axis path, .axis line {
    fill: none;
    stroke: #000;
    shape-rendering: crispEdges;
}
.area {
    fill: steelblue;
}

JavaScript

var data = [{
    "date": "1-May-12",
        "users": 500
}, {
    "date": "2-May-12",
        "users": 1685
}, {
    "date": "3-May-12",
        "users": 10002
}, {
    "date": "4-May-12",
        "users": 45
}, {
    "date": "5-May-12",
        "users": 12965
}, {
    "date": "6-May-12",
        "users": 741
}, {
    "date": "7-May-12",
        "users": 26
}, {
    "date": "8-May-12",
        "users": 96
}, {
    "date": "9-May-12",
        "users": 65
}, {
    "date": "10-May-12",
        "users": 500
}, {
    "date": "11-May-12",
        "users": 5010
}, {
    "date": "12-May-12",
        "users": 1685
}, {
    "date": "13-May-12",
        "users": 10002
}, {
    "date": "14-May-12",
        "users": 45
}, {
    "date": "15-May-12",
        "users": 12965
}, {
    "date": "16-May-12",
        "users": 7411
}, {
    "date": "17-May-12",
        "users": 2226
}, {
    "date": "18-May-12",
        "users": 926
}, {
    "date": "19-May-12",
        "users": 165
}];

var margin = {
    top: 20,
    right: 20,
    bottom: 30,
    left: 50
},
width = 960 - margin.left - margin.right,
    height = 500 - margin.top - margin.bottom;

var parseDate = d3.time.format("%d-%b-%y").parse;

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

var y = d3.scale.linear()
    .range([height, 0]);

var xAxis = d3.svg.axis()
    .scale(x)
    .orient("bottom");

var yAxis = d3.svg.axis()
    .scale(y)
    .orient("left");

var area = d3.svg.area()
    .x(function (d) {
    return x(d.date);
})
    .y0(height)
    .y1(function (d) {
    return y(d.users);
});

var svg = d3.select("#addSVG").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 + ")");


data.forEach(function (d) {
    d.date = parseDate(d.date);
    d.users = d.users;
});

x.domain(d3.extent(data, function (d) {
    return d.date;
}));
y.domain([0, d3.max(data,...