¿Cómo funcionaría el ejemplo del gráfico de diferencias de d3.js con los datos de json?
He estado luchando para obtener este ejemplo:
http://bl.ocks.org/mbostock/3894205
... para trabajar con json para que pueda usarlo en un portlet con datos en vivo. Puedo ver los elementos de datos si hago una alerta pero el componente no se está procesando. Solo obtengo el eje y y su etiqueta para mostrar.
La parte que puede estar equivocada es:
d3.json("data.json", function(error, data) {
if(error) return console.warn(error);
data.data.forEach(function(d) {
d.date = parseDate(d.date);
d["San Francisco"]= +d["San Francisco"];
d["New York"] = +d["New York"];
count++;
if (count>360) {
alert(d.date + " " + d["San Francisco"] + " " + d["New York"]);
}
});
tomado del archivo html
<!DOCTYPE html>
<meta charset="utf-8">
<style>
body {
font: 10px sans-serif;
}
.axis path,
.axis line {
fill: none;
stroke: #000;
shape-rendering: crispEdges;
}
.x.axis path {
display: none;
}
.area.above {
fill: rgb(252,141,89);
}
.area.below {
fill: rgb(145,207,96);
}
.line {
fill: none;
stroke: #000;
stroke-width: 1.5px;
}
</style>
<body>
<script src="http://d3js.org/d3.v3.min.js"></script>
<script>
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("%Y%m%d").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 line = d3.svg.area()
.interpolate("basis")
.x(function(d) { return x(d.date); })
.y(function(d) { return y(d["New York"]); });
var area = d3.svg.area()
.interpolate("basis")
.x(function(d) { return x(d.date); })
.y1(function(d) { return y(d["New York"]); });
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 + ")");
var count =0;
d3.json("data.json", function(error, data) {
if(error) return console.warn(error);
data.data.forEach(function(d) {
d.date = parseDate(d.date);
d["San Francisco"]= +d["San Francisco"];
d["New York"] = +d["New York"];
count++;
if (count>360) {
alert(d.date + " " + d["San Francisco"] + " " + d["New York"]);
}
});
x.domain(d3.extent(data, function(d) { return d.date; }));
y.domain([
d3.min(data, function(d) { return Math.min(d["New York"], d["San Francisco"]); }),
d3.max(data, function(d) { return Math.max(d["New York"], d["San Francisco"]); })
]);
svg.datum(data);
svg.append("clipPath")
.attr("id", "clip-below")
.append("path")
.attr("d", area.y0(height));
svg.append("clipPath")
.attr("id", "clip-above")
.append("path")
.attr("d", area.y0(0));
svg.append("path")
.attr("class", "area above")
.attr("clip-path", "url(#clip-above)")
.attr("d", area.y0(function(d) { return y(d["San Francisco"]); }));
svg.append("path")
.attr("class", "area below")
.attr("clip-path", "url(#clip-below)")
.attr("d", area);
svg.append("path")
.attr("class", "line")
.attr("d", line);
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("Temperature (ºF)");
});
</script>
usando el siguiente archivo data.json
{"data":[
{"date":"20111001","New York":83.4,"San Francisco":82.7},
{"date":"20111002","New York":78.1,"San Francisco":79.9},
{"date":"20111003","New York":73.3,"San Francisco":79.1},
{"date":"20111004","New York":75.7,"San Francisco":78.8},
{"date":"20111005","New York":84.2,"San Francisco":78.7},
{"date":"20111006","New York":78.8,"San Francisco":77},
{"date":"20111007","New York":77.9,"San Francisco":76.7},
{"date":"20111008","New York":81.8,"San Francisco":76.8},
{"date":"20111009","New York":89.3,"San Francisco":76.7},
{"date":"20111010","New York":91.2,"San Francisco":80.1},
{"date":"20111011","New York":88.7,"San Francisco":81.1},
{"date":"20111012","New York":81.8,"San Francisco":81.5},
{"date":"20111013","New York":83.1,"San Francisco":84.3},
{"date":"20111014","New York":86.9,"San Francisco":87.1},
{"date":"20111015","New York":81.7,"San Francisco":84.6},
{"date":"20111016","New York":81.8,"San Francisco":81.6},
{"date":"20111017","New York":82.8,"San Francisco":81.1},
{"date":"20111018","New York":80.8,"San Francisco":79.2},
{"date":"20111019","New York":82.1,"San Francisco":78.9},
{"date":"20111020","New York":85.1,"San Francisco":77.2},
{"date":"20111021","New York":75.6,"San Francisco":76.4},
{"date":"20111022","New York":74.4,"San Francisco":80.7},
{"date":"20111023","New York":74.4,"San Francisco":85.1},
{"date":"20111024","New York":74.8,"San Francisco":80.9},
{"date":"20111025","New York":77.9,"San Francisco":76.1},
{"date":"20111026","New York":74.6,"San Francisco":74.6},
{"date":"20111027","New York":74.4,"San Francisco":76.1},
{"date":"20111028","New York":62.5,"San Francisco":78.1},
{"date":"20111029","New York":60.9,"San Francisco":77.5},
{"date":"20111030","New York":58.6,"San Francisco":77.7},
{"date":"20111031","New York":64.2,"San Francisco":75.1},
{"date":"20111101","New York":69.6,"San Francisco":77.9},
{"date":"20111102","New York":67.2,"San Francisco":84.6},
{"date":"20111103","New York":70.1,"San Francisco":76.2},
{"date":"20111104","New York":70.1,"San Francisco":70.5},
{"date":"20111105","New York":63.5,"San Francisco":71.3},
{"date":"20111106","New York":63.8,"San Francisco":72.6},
{"date":"20111107","New York":68.9,"San Francisco":71.4},
{"date":"20111108","New York":75.5,"San Francisco":70.6},
{"date":"20111109","New York":73.7,"San Francisco":74.6},
{"date":"20111110","New York":77.7,"San Francisco":75.6},
{"date":"20111111","New York":68.5,"San Francisco":73.9},
{"date":"20111112","New York":66.8,"San Francisco":74},
{"date":"20111113","New York":71.1,"San Francisco":73.8},
{"date":"20111114","New York":76.8,"San Francisco":73.5},
{"date":"20111115","New York":79.7,"San Francisco":73.4},
{"date":"20111116","New York":76.5,"San Francisco":72.2},
{"date":"20111117","New York":69.6,"San Francisco":72.7},
{"date":"20111118","New York":61.5,"San Francisco":73.1},
{"date":"20111119","New York":64.3,"San Francisco":69},
{"date":"20111120","New York":74.1,"San Francisco":70.4},
{"date":"20111121","New York":74.1,"San Francisco":71.1},
{"date":"20111122","New York":69.4,"San Francisco":72.3},
{"date":"20111123","New York":70.1,"San Francisco":74.6},
{"date":"20111124","New York":64.1,"San Francisco":75.1},
{"date":"20111125","New York":70.3,"San Francisco":71.5},
{"date":"20111126","New York":72.1,"San Francisco":73.6},
{"date":"20111127","New York":69.6,"San Francisco":72.3},
{"date":"20111128","New York":77.2,"San Francisco":71},
{"date":"20111129","New York":79.1,"San Francisco":69.5},
{"date":"20111130","New York":70.6,"San Francisco":69.8},
{"date":"20111201","New York":64.3,"San Francisco":80.4},
{"date":"20111202","New York":63.9,"San Francisco":82.2},
{"date":"20111203","New York":62.1,"San Francisco":78.3},
{"date":"20111204","New York":63.9,"San Francisco":72.7},
{"date":"20111205","New York":70.2,"San Francisco":71.5},
{"date":"20111206","New York":74.2,"San Francisco":69.9},
{"date":"20111207","New York":74.6,"San Francisco":68.6},
{"date":"20111208","New York":63.4,"San Francisco":66.4},
{"date":"20111209","New York":62.2,"San Francisco":69.8},
{"date":"20111210","New York":65.1,"San Francisco":72.1},
{"date":"20111211","New York":53.8,"San Francisco":68.8},
{"date":"20111212","New York":56.8,"San Francisco":67.4},
{"date":"20111213","New York":58.6,"San Francisco":67.2},
{"date":"20111214","New York":61.9,"San Francisco":66.1},
{"date":"20111215","New York":69.6,"San Francisco":68.8},
{"date":"20111216","New York":70.2,"San Francisco":67.9},
{"date":"20111217","New York":60.6,"San Francisco":69.8},
{"date":"20111218","New York":49.1,"San Francisco":69.1},
{"date":"20111219","New York":53.7,"San Francisco":68.3},
{"date":"20111220","New York":65.8,"San Francisco":69.3},
{"date":"20111221","New York":67.4,"San Francisco":68.4},
{"date":"20111222","New York":74.4,"San Francisco":73.3},
{"date":"20111223","New York":67.8,"San Francisco":67.5},
{"date":"20111224","New York":54.9,"San Francisco":67.9},
{"date":"20111225","New York":55.9,"San Francisco":68.9},
{"date":"20111226","New York":63.6,"San Francisco":65.9},
{"date":"20111227","New York":62.9,"San Francisco":67.2},
{"date":"20111228","New York":66.2,"San Francisco":68.9},
{"date":"20111229","New York":50.8,"San Francisco":70.9},
{"date":"20111230","New York":60.8,"San Francisco":72.9},
{"date":"20111231","New York":69.8,"San Francisco":70.1},
{"date":"20120101","New York":66.3,"San Francisco":73.9},
{"date":"20120102","New York":63.2,"San Francisco":73.1},
{"date":"20120103","New York":50.3,"San Francisco":69.7},
{"date":"20120104","New York":39.2,"San Francisco":72.7},
{"date":"20120105","New York":52.1,"San Francisco":72.6},
{"date":"20120106","New York":61.2,"San Francisco":69},
{"date":"20120107","New York":67.1,"San Francisco":71},
{"date":"20120108","New York":66.1,"San Francisco":76.8},
{"date":"20120109","New York":54.7,"San Francisco":72.3},
{"date":"20120110","New York":59.4,"San Francisco":71.6},
{"date":"20120111","New York":60.4,"San Francisco":69.8},
{"date":"20120112","New York":65.4,"San Francisco":71.9},
{"date":"20120113","New York":60.7,"San Francisco":73.7},
{"date":"20120114","New York":50.4,"San Francisco":72.9},
{"date":"20120115","New York":43.9,"San Francisco":69.7},
{"date":"20120116","New York":42.6,"San Francisco":65.3},
{"date":"20120117","New York":59.8,"San Francisco":63.6},
{"date":"20120118","New York":63.2,"San Francisco":65},
{"date":"20120119","New York":46.3,"San Francisco":67.3},
{"date":"20120120","New York":52.8,"San Francisco":71.4},
{"date":"20120121","New York":47.4,"San Francisco":73.7},
{"date":"20120122","New York":45.1,"San Francisco":68.3},
{"date":"20120123","New York":59.4,"San Francisco":72.9},
{"date":"20120124","New York":68.7,"San Francisco":69.1},
{"date":"20120125","New York":63.1,"San Francisco":72.1},
{"date":"20120126","New York":57.1,"San Francisco":73.6},
{"date":"20120127","New York":68.2,"San Francisco":70.4},
{"date":"20120128","New York":63.7,"San Francisco":70.3},
{"date":"20120129","New York":60.1,"San Francisco":73.8},
{"date":"20120130","New York":58.0,"San Francisco":71.9},
{"date":"20120131","New York":63.5,"San Francisco":70},
{"date":"20120201","New York":70.4,"San Francisco":70},
{"date":"20120202","New York":65.8,"San Francisco":71.3},
{"date":"20120203","New York":57.5,"San Francisco":71.5},
{"date":"20120204","New York":60.8,"San Francisco":72},
{"date":"20120205","New York":56.5,"San Francisco":73.8},
{"date":"20120206","New York":59.1,"San Francisco":74.6},
{"date":"20120207","New York":63.2,"San Francisco":74.3},
{"date":"20120208","New York":56.5,"San Francisco":71.9},
{"date":"20120209","New York":56.5,"San Francisco":73.8},
{"date":"20120210","New York":58.3,"San Francisco":73.9},
{"date":"20120211","New York":56.9,"San Francisco":72.3},
{"date":"20120212","New York":49.7,"San Francisco":70.1},
{"date":"20120213","New York":53.1,"San Francisco":69.5},
{"date":"20120214","New York":59.6,"San Francisco":68.6},
{"date":"20120215","New York":62.3,"San Francisco":69.9},
{"date":"20120216","New York":59.7,"San Francisco":72.4},
{"date":"20120217","New York":66.0,"San Francisco":69.9},
{"date":"20120218","New York":61.2,"San Francisco":71.6},
{"date":"20120219","New York":59.8,"San Francisco":67.8},
{"date":"20120220","New York":58.1,"San Francisco":68.7},
{"date":"20120221","New York":57.1,"San Francisco":69.7},
{"date":"20120222","New York":65.5,"San Francisco":73.4},
{"date":"20120223","New York":70.6,"San Francisco":74.1},
{"date":"20120224","New York":62.7,"San Francisco":75.9},
{"date":"20120225","New York":62.6,"San Francisco":71.7},
{"date":"20120226","New York":56.9,"San Francisco":67.7},
{"date":"20120227","New York":60.9,"San Francisco":65.4},
{"date":"20120228","New York":65.9,"San Francisco":67},
{"date":"20120229","New York":60.7,"San Francisco":69.8},
{"date":"20120301","New York":61.3,"San Francisco":68.9},
{"date":"20120302","New York":56.8,"San Francisco":68.1},
{"date":"20120303","New York":67.6,"San Francisco":70.7},
{"date":"20120304","New York":64.2,"San Francisco":75},
{"date":"20120305","New York":58.5,"San Francisco":68.8},
{"date":"20120306","New York":52.9,"San Francisco":68.4},
{"date":"20120307","New York":63.3,"San Francisco":69.9},
{"date":"20120308","New York":71.2,"San Francisco":69.2},
{"date":"20120309","New York":67.8,"San Francisco":71.7},
{"date":"20120310","New York":57.2,"San Francisco":69.3},
{"date":"20120311","New York":62.9,"San Francisco":70},
{"date":"20120312","New York":68.8,"San Francisco":68.6},
{"date":"20120313","New York":72.6,"San Francisco":73.9},
{"date":"20120314","New York":80.5,"San Francisco":75.2},
{"date":"20120315","New York":67.2,"San Francisco":75.9},
{"date":"20120316","New York":64.7,"San Francisco":74.6},
{"date":"20120317","New York":68.2,"San Francisco":68.2},
{"date":"20120318","New York":68.2,"San Francisco":67.1},
{"date":"20120319","New York":73.1,"San Francisco":65.8},
{"date":"20120320","New York":77.8,"San Francisco":69.7},
{"date":"20120321","New York":77.5,"San Francisco":71.4},
{"date":"20120322","New York":77.3,"San Francisco":71.4},
{"date":"20120323","New York":81.7,"San Francisco":68.4},
{"date":"20120324","New York":75.8,"San Francisco":69},
{"date":"20120325","New York":68.4,"San Francisco":66.4},
{"date":"20120326","New York":69.8,"San Francisco":69.7},
{"date":"20120327","New York":59.6,"San Francisco":74.1},
{"date":"20120328","New York":69.7,"San Francisco":74.6},
{"date":"20120329","New York":76.8,"San Francisco":72.3},
{"date":"20120330","New York":66.5,"San Francisco":74.5},
{"date":"20120331","New York":62.2,"San Francisco":76.2},
{"date":"20120401","New York":65.3,"San Francisco":71.1},
{"date":"20120402","New York":68.1,"San Francisco":70.5},
{"date":"20120403","New York":71.2,"San Francisco":72.2},
{"date":"20120404","New York":81.0,"San Francisco":70.6},
{"date":"20120405","New York":70.7,"San Francisco":67.9},
{"date":"20120406","New York":68.0,"San Francisco":67.4},
{"date":"20120407","New York":71.1,"San Francisco":69.4},
{"date":"20120408","New York":75.7,"San Francisco":70},
{"date":"20120409","New York":78.3,"San Francisco":71.3},
{"date":"20120410","New York":75.0,"San Francisco":73.8},
{"date":"20120411","New York":69.0,"San Francisco":72.9},
{"date":"20120412","New York":71.7,"San Francisco":73.9},
{"date":"20120413","New York":73.1,"San Francisco":70.2},
{"date":"20120414","New York":75.2,"San Francisco":70.9},
{"date":"20120415","New York":82.3,"San Francisco":71.5},
{"date":"20120416","New York":82.9,"San Francisco":71.9},
{"date":"20120417","New York":89.3,"San Francisco":73.2},
{"date":"20120418","New York":79.0,"San Francisco":73},
{"date":"20120419","New York":74.1,"San Francisco":75.1},
{"date":"20120420","New York":76.5,"San Francisco":75.8},
{"date":"20120421","New York":78.2,"San Francisco":78},
{"date":"20120422","New York":72.4,"San Francisco":72.8},
{"date":"20120423","New York":71.6,"San Francisco":75.1},
{"date":"20120424","New York":69.3,"San Francisco":77.9},
{"date":"20120425","New York":72.5,"San Francisco":77.5},
{"date":"20120426","New York":70.5,"San Francisco":75.3},
{"date":"20120427","New York":71.9,"San Francisco":73.5},
{"date":"20120428","New York":67.4,"San Francisco":74.7},
{"date":"20120429","New York":74.1,"San Francisco":74},
{"date":"20120430","New York":71.9,"San Francisco":73.4},
{"date":"20120501","New York":77.4,"San Francisco":72.7},
{"date":"20120502","New York":73.7,"San Francisco":70.7},
{"date":"20120503","New York":73.1,"San Francisco":72.6},
{"date":"20120504","New York":77.2,"San Francisco":73.4},
{"date":"20120505","New York":77.0,"San Francisco":73.1},
{"date":"20120506","New York":76.6,"San Francisco":76.5},
{"date":"20120507","New York":74.6,"San Francisco":75.3},
{"date":"20120508","New York":77.9,"San Francisco":72},
{"date":"20120509","New York":79.2,"San Francisco":72.4},
{"date":"20120510","New York":81.1,"San Francisco":73.4},
{"date":"20120511","New York":79.7,"San Francisco":73.1},
{"date":"20120512","New York":84.1,"San Francisco":69.9},
{"date":"20120513","New York":85.3,"San Francisco":72},
{"date":"20120514","New York":84.2,"San Francisco":76},
{"date":"20120515","New York":82.0,"San Francisco":73},
{"date":"20120516","New York":83.8,"San Francisco":71},
{"date":"20120517","New York":84.5,"San Francisco":71.4},
{"date":"20120518","New York":81.0,"San Francisco":72.2},
{"date":"20120519","New York":82.6,"San Francisco":72.4},
{"date":"20120520","New York":86.2,"San Francisco":74.5},
{"date":"20120521","New York":82.7,"San Francisco":72.8},
{"date":"20120522","New York":83.7,"San Francisco":73.9},
{"date":"20120523","New York":86.4,"San Francisco":76.5},
{"date":"20120524","New York":84.5,"San Francisco":74.7},
{"date":"20120525","New York":85.4,"San Francisco":72.5},
{"date":"20120526","New York":89.4,"San Francisco":72.1},
{"date":"20120527","New York":91.9,"San Francisco":72.2},
{"date":"20120528","New York":94.4,"San Francisco":72.9},
{"date":"20120529","New York":95.9,"San Francisco":72.1},
{"date":"20120530","New York":92.9,"San Francisco":72.1},
{"date":"20120531","New York":92.5,"San Francisco":73.3},
{"date":"20120601","New York":87.2,"San Francisco":74.8},
{"date":"20120602","New York":88.3,"San Francisco":74},
{"date":"20120603","New York":87.7,"San Francisco":72.3},
{"date":"20120604","New York":81.9,"San Francisco":75.3},
{"date":"20120605","New York":78.3,"San Francisco":73.5},
{"date":"20120606","New York":81.7,"San Francisco":74.1},
{"date":"20120607","New York":86.7,"San Francisco":73.9},
{"date":"20120608","New York":88.7,"San Francisco":74.4},
{"date":"20120609","New York":92.2,"San Francisco":75},
{"date":"20120610","New York":92.6,"San Francisco":80},
{"date":"20120611","New York":89.2,"San Francisco":77.2},
{"date":"20120612","New York":86.9,"San Francisco":75.1},
{"date":"20120613","New York":86.7,"San Francisco":73.3},
{"date":"20120614","New York":87.7,"San Francisco":73.4},
{"date":"20120615","New York":88.5,"San Francisco":74.6},
{"date":"20120616","New York":87.5,"San Francisco":77},
{"date":"20120617","New York":84.2,"San Francisco":75.6},
{"date":"20120618","New York":81.7,"San Francisco":72.5},
{"date":"20120619","New York":86.4,"San Francisco":73.9},
{"date":"20120620","New York":97.9,"San Francisco":75.3},
{"date":"20120621","New York":108.0,"San Francisco":73.3},
{"date":"20120622","New York":102.0,"San Francisco":74.1},
{"date":"20120623","New York":97.0,"San Francisco":75.2},
{"date":"20120624","New York":95.4,"San Francisco":75.8},
{"date":"20120625","New York":90.9,"San Francisco":76.8},
{"date":"20120626","New York":85.9,"San Francisco":77.5},
{"date":"20120627","New York":93.5,"San Francisco":77.7},
{"date":"20120628","New York":97.4,"San Francisco":76.6},
{"date":"20120629","New York":99.6,"San Francisco":76.4},
{"date":"20120630","New York":104.0,"San Francisco":78.4},
{"date":"20120701","New York":101.0,"San Francisco":78.8},
{"date":"20120702","New York":102.0,"San Francisco":76.4},
{"date":"20120703","New York":100.0,"San Francisco":76.5},
{"date":"20120704","New York":97.8,"San Francisco":75.8},
{"date":"20120705","New York":106.0,"San Francisco":74.8},
{"date":"20120706","New York":99.9,"San Francisco":74.9},
{"date":"20120707","New York":103.0,"San Francisco":74.7},
{"date":"20120708","New York":101.0,"San Francisco":72.8},
{"date":"20120709","New York":97.8,"San Francisco":73.7},
{"date":"20120710","New York":96.1,"San Francisco":73.1},
{"date":"20120711","New York":96.3,"San Francisco":72.7},
{"date":"20120712","New York":95.8,"San Francisco":72},
{"date":"20120713","New York":97.2,"San Francisco":73.4},
{"date":"20120714","New York":99.3,"San Francisco":74},
{"date":"20120715","New York":98.9,"San Francisco":74},
{"date":"20120716","New York":99.6,"San Francisco":74.5},
{"date":"20120717","New York":103.0,"San Francisco":76.7},
{"date":"20120718","New York":104.0,"San Francisco":77.5},
{"date":"20120719","New York":95.1,"San Francisco":77.1},
{"date":"20120720","New York":88.4,"San Francisco":78.1},
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