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Multi-line chart
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[ | |
{ | |
"Time": "2017-05-03 23:17", | |
"BTC": 19.7, | |
"DOGE": 0, | |
"ETH": 78.88, | |
"LTC": 20.81, | |
"REP": 0 | |
}, | |
{ | |
"Time": "2017-05-04 20:18", | |
"BTC": 21.21, | |
"DOGE": 0, | |
"ETH": 90.45, | |
"LTC": 24.91, | |
"REP": 0 | |
}, | |
{ | |
"Time": "2017-05-05 19:11", | |
"BTC": 20.1, | |
"DOGE": 11.58, | |
"ETH": 91.73, | |
"LTC": 24.06, | |
"REP": 0 | |
}, | |
{ | |
"Time": "2017-05-06 18:56", | |
"BTC": 20.28, | |
"DOGE": 12.37, | |
"ETH": 92.78, | |
"LTC": 25.91, | |
"REP": 0 | |
}, | |
{ | |
"Time": "2017-05-09 0:50", | |
"BTC": 21.77, | |
"DOGE": 20.34, | |
"ETH": 89.27, | |
"LTC": 28.45, | |
"REP": 0 | |
}, | |
{ | |
"Time": "2017-05-09 2:15", | |
"BTC": 21.99, | |
"DOGE": 20.58, | |
"ETH": 88.62, | |
"LTC": 28.49, | |
"REP": 34.7 | |
}, | |
{ | |
"Time": "2017-05-09 23:59", | |
"BTC": 22.46, | |
"DOGE": 17.51, | |
"ETH": 87.45, | |
"LTC": 30.14, | |
"REP": 32.45 | |
}, | |
{ | |
"Time": "2017-05-11 0:57", | |
"BTC": 23.15, | |
"DOGE": 18.83, | |
"ETH": 86.94, | |
"LTC": 32.18, | |
"REP": 34.36 | |
}, | |
{ | |
"Time": "2017-05-11 22:17", | |
"BTC": 24.17, | |
"DOGE": 17.48, | |
"ETH": 87.87, | |
"LTC": 29.62, | |
"REP": 34.36 | |
}, | |
{ | |
"Time": "2017-05-12 1:55", | |
"BTC": 24.13, | |
"DOGE": 17.99, | |
"ETH": 88.05, | |
"LTC": 30.02, | |
"REP": 36.08 | |
}, | |
{ | |
"Time": "2017-05-13 1:57", | |
"BTC": 22.41, | |
"DOGE": 17.48, | |
"ETH": 85.25, | |
"LTC": 27, | |
"REP": 33.72 | |
}, | |
{ | |
"Time": "2017-05-14 15:32", | |
"BTC": 23.67, | |
"DOGE": 17.04, | |
"ETH": 89.19, | |
"LTC": 28.9, | |
"REP": 34.24 | |
}, | |
{ | |
"Time": "2017-05-14 23:34", | |
"BTC": 23.47, | |
"DOGE": 17.51, | |
"ETH": 88.6, | |
"LTC": 28.01, | |
"REP": 33.72 | |
} | |
] |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
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<!DOCTYPE html> | |
<meta charset="utf-8"> | |
<style> | |
path { | |
stroke-width: 1; | |
fill: none; | |
stroke-linejoin: round; | |
stroke-linecap: round; | |
} | |
circle { | |
stroke-width: 1; | |
} | |
.axis path, | |
.axis line { | |
fill: none; | |
stroke: grey; | |
stroke-width: 1; | |
shape-rendering: crispEdges; | |
} | |
.legend, .label, .hover-text{ | |
font-size: x-small; | |
background-color: white; | |
} | |
</style> | |
<svg width="960" height="500"></svg> | |
<script src="https://d3js.org/d3.v3.min.js"></script> | |
<script> | |
// Draw a line chart | |
var svg = d3.select('svg'), | |
margin = { top: 20, right: 50, bottom: 30, left: 50 }, | |
width = +svg.attr('width') - margin.left - margin.right, | |
height = +svg.attr('height') - margin.top - margin.bottom, | |
g = svg.append('g').attr('transform', 'translate(' + margin.left + ',' + margin.top + ')'); | |
// Graph title | |
g.append('text') | |
.attr('x', (width / 2)) | |
.attr('y', 0 - (margin.top / 3)) | |
.attr('text-anchor', 'middle') | |
.style('font-size', '16px') | |
.text('Wallet chart'); | |
// Function to convert a string into a time | |
var parseTime = d3.time.format('%Y-%m-%d %H:%M').parse; | |
// Function to show specific time format | |
var formatTime = d3.time.format('%e %B'); | |
// Set the X scale | |
var x = d3.time.scale().range([0, width], 0.5); | |
// Set the Y scale | |
var y = d3.scale.linear().range([height, 0]); | |
// Set the color scale | |
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.worth); | |
}); | |
// load the data | |
d3.json("data.json", function(error, data) { | |
// Select the important columns | |
color.domain(d3.keys(data[0]).filter(function(key) { | |
return key !== "Time" && key !== "_id"; | |
})); | |
// Correct the types | |
data.forEach(function(d) { | |
d.date = parseTime(d.Time); | |
}); | |
console.log(data); | |
var currencies = color.domain().map(function(name) { | |
return { | |
name: name, | |
values: data.map(function(d) { | |
return { | |
date: d.date, | |
worth: +d[name] | |
}; | |
}) | |
}; | |
}); | |
console.log(currencies) | |
// Set the X domain | |
x.domain(d3.extent(data, function(d) { | |
return d.date; | |
})); | |
// Set the Y domain | |
y.domain([ | |
d3.min(currencies, function(c) { | |
return d3.min(c.values, function(v) { | |
return v.worth; | |
}); | |
}), | |
d3.max(currencies, function(c) { | |
return d3.max(c.values, function(v) { | |
return v.worth; | |
}); | |
}) | |
]); | |
// Set the X axis | |
g.append("g") | |
.attr("class", "x axis") | |
.attr("transform", "translate(0," + height + ")") | |
.call(xAxis); | |
// Set the Y axis | |
g.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("Value (USD)"); | |
// Draw the lines | |
var currency = g.selectAll(".currency") | |
.data(currencies) | |
.enter().append("g") | |
.attr("class", "currency"); | |
currency.append("path") | |
.attr("class", "line") | |
.attr("d", function(d) { | |
return line(d.values); | |
}) | |
.style("stroke", function(d) { | |
return color(d.name); | |
}); | |
// Add the circles | |
currency.append("g").selectAll("circle") | |
.data(function(d){return d.values}) | |
.enter() | |
.append("circle") | |
.attr("r", 2) | |
.attr("cx", function(dd){return x(dd.date)}) | |
.attr("cy", function(dd){return y(dd.worth)}) | |
.attr("fill", "none") | |
.attr("stroke", function(d){return color(this.parentNode.__data__.name)}); | |
// Add label to the end of the line | |
currency.append("text") | |
.attr("class", "label") | |
.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.worth) + ")"; | |
}) | |
.attr("x", 3) | |
.attr("dy", ".35em") | |
.text(function (d) { | |
return d.name; | |
}); | |
// Add the mouse line | |
var mouseG = g.append("g") | |
.attr("class", "mouse-over-effects"); | |
mouseG.append("path") | |
.attr("class", "mouse-line") | |
.style("stroke", "black") | |
.style("stroke-width", "1px") | |
.style("opacity", "0"); | |
var lines = document.getElementsByClassName('line'); | |
var mousePerLine = mouseG.selectAll('.mouse-per-line') | |
.data(currencies) | |
.enter() | |
.append("g") | |
.attr("class", "mouse-per-line"); | |
mousePerLine.append("circle") | |
.attr("r", 7) | |
.style("stroke", function (d) { | |
return color(d.name); | |
}) | |
.style("fill", "none") | |
.style("stroke-width", "2px") | |
.style("opacity", "0"); | |
mousePerLine.append("text") | |
.attr("class", "hover-text") | |
.attr("dy", "-1em") | |
.attr("transform", "translate(10,3)"); | |
// Append a rect to catch mouse movements on canvas | |
mouseG.append('svg:rect') | |
.attr('width', width) | |
.attr('height', height) | |
.attr('fill', 'none') | |
.attr('pointer-events', 'all') | |
.on('mouseout', function () { // on mouse out hide line, circles and text | |
d3.select(".mouse-line") | |
.style("opacity", "0"); | |
d3.selectAll(".mouse-per-line circle") | |
.style("opacity", "0"); | |
d3.selectAll(".mouse-per-line text") | |
.style("opacity", "0"); | |
}) | |
.on('mouseover', function () { // on mouse in show line, circles and text | |
d3.select(".mouse-line") | |
.style("opacity", "1"); | |
d3.selectAll(".mouse-per-line circle") | |
.style("opacity", "1"); | |
d3.selectAll(".mouse-per-line text") | |
.style("opacity", "1"); | |
}) | |
.on('mousemove', function () { // mouse moving over canvas | |
var mouse = d3.mouse(this); | |
d3.selectAll(".mouse-per-line") | |
.attr("transform", function (d, i) { | |
var xDate = x.invert(mouse[0]), | |
bisect = d3.bisector(function (d) { return d.date; }).left; | |
idx = bisect(d.values, xDate); | |
d3.select(this).select('text') | |
.text(y.invert(y(d.values[idx].worth)).toFixed(2)); | |
d3.select(".mouse-line") | |
.attr("d", function () { | |
var data = "M" + x(d.values[idx].date) + "," + height; | |
data += " " + x(d.values[idx].date) + "," + 0; | |
return data; | |
}); | |
return "translate(" + x(d.values[idx].date) + "," + y(d.values[idx].worth) + ")"; | |
}); | |
}); | |
}); | |
</script> |
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