json - set date without time in D3 js -
i working on d3 js. lerner , trying render multi line graph not able set proper date format.i wanted remove 12 pm .example april 12 pm wed 02
below code
var margin = { top: 40, right: 40, bottom: 35, left: 85 }, width = 800 - margin.left - margin.right, height = 350 - margin.top - margin.bottom; var parsedate = d3.time.format("%y%m%d").parse; var x = d3.time.scale() .range([0, width]); var y = d3.scale.linear() .range([height, 0]); var color = d3.scale.category10(); var xaxis = d3.svg.axis() .scale(x) .orient("bottom"); var yaxis = d3.svg.axis() .scale(y) .orient("left"); var line = d3.svg.line() .interpolate("basis") .x(function (d) { return x(d.date); }) .y(function (d) { return y(d.request); }); var svg = d3.select("body").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 + ")"); //d3.tsv("data.tsv", function (error, data) { color.domain(d3.keys(data.listweekly[0]).filter(function (key) { return key !== "date"; })); data.listweekly.foreach(function (d) { d.date = parsedate(d.date); }); var cities = color.domain().map(function (name) { return { name: name, values: data.listweekly.map(function (d) { return { date: d.date, request: +d[name] }; }) }; }); x.domain(d3.extent(data.listweekly, function (d) { return d.date; })); y.domain([ d3.min(cities, function (c) { return d3.min(c.values, function (v) { return v.request; }); }), d3.max(cities, function (c) { return d3.max(c.values, function (v) { return v.request; }); }) ]); svg.append("g") .attr("class", "x axis") .attr("transform", "translate(0," + height + ")") .call(xaxis); svg.append("g") .attr("class", "y axis") .call(yaxis) .append("text") .attr("transform", "rotate(-90)") .attr("y", 6) .attr("dy", ".71em") .style("text-anchor", "end") .text("request"); var city = svg.selectall(".city") .data(cities) .enter().append("g") .attr("class", "city"); city.append("path") .attr("class", "line") .attr("d", function (d) { return line(d.values); }) .style("stroke", function (d) { return color(d.name); }); city.append("text") .datum(function (d) { return { name: d.name, value: d.values[d.values.length - 1] }; }) .attr("transform", function (d) { return "translate(" + x(d.value.date) + "," + y(d.value.request) + ")"; }) .attr("x", 3) .attr("dy", ".35em") .text(function (d) { return d.name; }); //});
my json data
var list = new list<object>(); list.add(new { date = "20140401", weekday = "163", weekend = "263" }); list.add(new { date = "20140402", weekday = "153", weekend = "253" }); list.add(new { date = "20140403", weekday = "133", weekend = "233" }); list.add(new { date = "20140404", weekday = "167", weekend = "373" }); list.add(new { date = "20140405", weekday = "123", weekend = "183" }); list.add(new { date = "20140406", weekday = "178", weekend = "123" }); list.add(new { date = "20140407", weekday = "32", weekend = "223" }); return json(new { listweekly = list });
you can set time format using d3.time.format
helper , set format of tick labels of axis using axis tickformat
method. have dates formatted 2014-04-30
, can use following code:
// create time format generator var datefmt = d3.time.format('%y-%m-%d'); // 2014-04-30 // datefmt function returns string formatted date console.log(datefmt(new date('2014/04/04')); // 2014-04-04 // set tick format xaxis var xaxis = d3.svg.axis() .scale(x) .orient("bottom") .tickformat(function(d) { return datefmt(d.date); });
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