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siddharthpolisiti/index.html

Last active May 12, 2016 12:43
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MultiLine Chart with legends and tooltips
Raw
index.html
<!DOCTYPE html>
<meta charset="utf-8">
<head>
<style>
body {
font: 10px sans-serif;
}
.axis path,
.axis line {
fill: none;
stroke: #000;
shape-rendering: crispEdges;
}
.x.axis path {
display: none;
}
.line {
fill: none;
stroke: steelblue;
stroke-width: 1.5px;
}
div.tooltip {
position: absolute;
padding: 10px;
background: #f4f4f4;
border: 0px;
border-radius: 3px;
pointer-events: none;
font-size: 11px;
color: #000;
line-height: 16px;
border: 1px solid #d4d4d4;
}
</style>
<script src="https://d3js.org/d3.v3.min.js" charset="utf-8"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.2/jquery.min.js"></script>
</head>
<body>
<script>
var maindata = [{
"date": "21-APR-16 04:19 AM",
"Delhi": 30,
"Mumbai": 28
}, {
"date": "21-APR-16 05:19 AM",
"Delhi": 32,
"Mumbai": 30
}, {
"date": "21-APR-16 06:19 AM",
"Delhi": 34,
"Mumbai": 34
}, {
"date": "21-APR-16 10:19 AM",
"Kolkata": 34
}, {
"date": "21-APR-16 11:19 AM",
"Delhi": 42,
"Chennai": 40,
"Kolkata": 36
}];
var cities = []
var parseDate = d3.time.format("%d-%b-%y %H:%M %p").parse;
maindata.forEach(function(d) {
cities.push(d3.keys(d).filter(function(key) {
return key !== "date" && key !== "maxLength";
}));
});
cities = d3.set(d3.merge(cities)).values();
console.log(cities)
var myData = [];
var allValues = [];
var allDates =[];
cities.forEach(function(city){
var cityData = {};
cityData.name = city;
cityData.values = [];
maindata.forEach(function(md){
if (md[city]){
allValues.push(md[city])
allDates.push(parseDate(md.date))
cityData.values.push({date: parseDate(md.date), value: md[city]})
}
})
myData.push(cityData)
});
var that = this;
var deepClonedCopy = jQuery.extend(true, {}, maindata);
var data;
data = $.map(deepClonedCopy, function(el) {
return el
});
var margin = {
top: 15,
right: 30,
bottom: 20,
left: 30
},
width = 960 - margin.left - margin.right,
height = 500 - margin.top - margin.bottom;
if (data.length >= 1) {
var parseDate = d3.time.format("%d-%b-%y %H:%M %p").parse;
var maxDate = d3.time.hour.offset(parseDate(d3.max(data, function(d) {
return d.date;
})), +1);
var minDate = d3.time.hour.offset(parseDate(d3.min(data, function(d) {
return d.date;
})), -1);
var div = d3.select("body").append("div")
.attr("class", "tooltip")
.style("opacity", 0);
var x = d3.time.scale()
.domain(d3.extent(allDates))
.range([0, width]);
var y = d3.scale.linear()
.domain([0, d3.max(allValues)])
.range([Math.ceil(height), 0]);
var color = d3.scale.category10();
var xAxis = d3.svg.axis()
.scale(x)
.orient("bottom").ticks(4);
var yAxis = d3.svg.axis()
.scale(y)
.orient("left").ticks(4).tickSize(-width, 0, 0);
var line = d3.svg.line()
.x(function(d) {
return x(d.date);
})
.y(function(d) {
return y(d.value);
});
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 + ")");
svg.append("g")
.attr("class", "x axis")
.attr("transform", "translate(0," + height + ")")
.call(xAxis);
svg.append("g")
.attr("class", "y axis")
.call(yAxis);
var wsf = svg.selectAll(".wsf")
.data(myData)
.enter().append("g")
.attr("class", "wsf");
wsf.append("path")
.attr("class", "line")
.attr("d", function(d) {
return line(d.values);
})
.style("stroke", function(d) {
return color(d.name);
});
wsf.selectAll(".dot")
.data(function(d) {
return d.values;
})
.enter().append("circle")
.attr("class", "dot")
.attr("r", 3)
.attr("cx", function(d) {
return x(d.date);
})
.attr("cy", function(d) {
return y(d.value);
})
.attr("stroke", function(d) {
return color(this.parentNode.__data__.name)
})
.attr("fill", function(d) {
return color(this.parentNode.__data__.name)
})
//.attr("fill-opacity", .5)
//.attr("stroke-width", 2)
.on("mouseover", function(d) {
formatDate = d3.time.format("%d-%m-%Y %H:%M %p");
div.transition().duration(100).style("opacity", .9);
div.html(this.parentNode.__data__.name + "<br/>" +d.value+"°C on "+d.date )
.style("left", (d3.event.pageX) + "px").style("top", (d3.event.pageY - 28) + "px").attr('r', 8);
d3.select(this).attr('r', 8)
}).on("mouseout", function(d) {
div.transition().duration(600).style("opacity", 0)
d3.select(this).attr('r', 3);
});
var legend = svg.selectAll(".legend")
.data(cities)
.enter().append("g")
.attr("class", "legend")
.attr("transform", function(d, i) {
return "translate(0," + i * 20 + ")";
});
legend.append("rect")
.attr("x", width - 18)
.attr("width", 18)
.attr("height", 4)
.style("fill", function(d) {
return color(d);
});
legend.append("text")
.attr("x", width - 24)
.attr("y", 6)
.attr("dy", ".35em")
.style("text-anchor", "end")
.text(function(d) {
return d;
});
}
</script>
</body>
</html>
@siddharthpolisiti
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Author

Adopted from Mike Bostock’s Multiseries line chart.

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