interactive-vis-course/Week14/using_reusable_barchart.html at gh-pages · arnicas/interactive-vis-course · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <style>
        body {
            font-family: sans-serif;
            padding-left: 20px;
        }

        div {
            padding: 20px 0 0 10px;
        }

        #menu select {
        background: #ccc;
           width: 220px;
           padding: 5px;
           font-size: 14px;
           line-height: 1;
           border: 0;
           border-radius: 0;
           height: 34px;
        }
    </style>
</head>
<body>

    <h2>Demo using a Reusable Bar Chart Code Library</h2>
    <p>From <a href="http://bl.ocks.org/rcmoore38/9f2908455355c0589619">http://bl.ocks.org/rcmoore38/9f2908455355c0589619</a></p>
    <p>Also, note that this example doesn't use a key value to set up object constancy, so we don't know which country is which bar. It's just sorted by worst-to-best.</p>

    <select id="menu">
    <option value="Measles">Measles</option>
    <option value="Malaria">Malaria</option>
    </select>

    <div id="updatableChart"></div>

<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.6/d3.min.js"></script>
<script src="js/reusable_barchart.js"></script>
<script src="https://d3js.org/queue.v1.min.js"></script>
<script>

    var illness = "Measles";

    var dateFormat = d3.time.format("Year %Y");

    queue()
    .defer(d3.csv, "data/deaths_04yearsold_excerpt.csv") // process
    .await(loaded);  // call loaded after loading, to render the charts with data


    function getData(data) {
        var dataset = data.filter(function(d) {
            return d.Year == "Year 2013";
        });
        dataset.sort(function(a,b) {return +b[illness] -  +a[illness];}); // illness is a global
        var illnessVals = dataset.map(function(d) {return +d[illness]});
        return illnessVals;
    }


    function loaded(error, data) {

        var illnessVals = getData(data); // default is Measles
        var updatableChart = barChart().width(800).data(illnessVals);

        d3.select('#updatableChart')
            .call(updatableChart);

        //updatableChart.data(illnessVals);

        d3.select("select#menu")
            .on("change", function() {
                illness = d3.select("select#menu").property("value"); // reset global
                console.log(illness);
                console.log(getData(data));
                updatableChart.data(getData(data));
            });

    }

</script>
</body>
</html>