Untitled

<!DOCTYPE html>
<html>
    <head>
        <meta http-equiv="content-type" content="text/html; charset=utf-8" />
        <title>THis is a te</title>

    </head>
    <body>
        <script src="http://d3js.org/d3.v3.min.js" type="text/javascript" charset="utf-8"></script>
        <script src="fun.js" type="text/javascript" charset="utf-8"></script>
        <script type="text/javascript" charset="utf-8">
            var dataset = new Array();
            var parseDate = d3.time.format('%Y-%b-%e').parse;
            d3.tsv("data.tsv",function(error,data){
                    for(var i in data){

                        //console.log(data[i].date);
                        //console.log(parseDate(data[i].date));
                        var elapse = (i == 0) ? 0 : dateElapse(parseDate(data[i-1].date),parseDate(data[i].date));
                        dataset.push({
                                date : parseDate(data[i].date),
                                state : data[i].state,
                                elapse : elapse
                            });
                    }
                });

            var total = 0;

            for(var i in dataset){
                total =total + dataset[i].elapse;
            }

            console.log(total);


            var tau = Math.PI * 2;
            var width = 960,height = 500;
            var svg = d3.select("body").append("svg").attr({
                        "width" : width,
                        "height": height,
                    });

            var container = svg.append("g").attr({
                        "transform":"translate(" + width / 2 + "," + height / 2+ ")"
                    });


            var arc = d3.svg.arc()
                        .innerRadius(180)
                        .outerRadius(240)
                        .startAngle(0);

            var background = container.append("path")
                                .datum({endAngle: tau})
                                .style("fill","#ddd")
                                .attr("d",arc)

            var foreground = container.append("g").append("path")
                                .datum({endAngle: 0.25 * tau})
                                .style("fill","#ffa500")
                                .attr("d",arc)


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

var month = [31,28,31,30,31,30,31,31,30,31,30,31];
var millseconds_per_day = 86400000;

function getDateParser(specifier) {
    return d3.time.format(specifier).parse;
}

function day( ) {
    return this.getDate();
}

function month() {
    return this.getMonth();
}

function year( ) {
    return this.getFullYear();
}


function dateElapse(start,end) {
    return Math.ceil((end - start) / millseconds_per_day);
}

function loadtsv(file,arr){
    arr = new Array();

    d3.tsv(file,function(error,data){
        var parser = getDateParser("%Y-%b-%e");

        for(var i in data){
            var elapse = (i == 0) ? 0 : dataElapse(parser(data[i-1].date,parser(data[i].data)));

            arr.push({
                date : parser(data[i].data),
                state: data[i].state,
                elapse : elapse
            })
        }

    });
}

date    state
2014-May-12 task1
2014-May-25 task2
2014-Jun-28 tsak3

var reader = new FileReader();
read.onload=...

d3.tsv("data.tsv",function(error,data){
     for(var i in data) {

                    ...

     }
     var total = 0;

     for(var i in dataset){
         total =total + dataset[i].elapse;
     }

     console.log(total);
});