|
<!DOCTYPE html> |
|
<head> |
|
<meta charset="utf-8"> |
|
<script src="https://d3js.org/d3.v4.min.js"></script> |
|
<style> |
|
.line { |
|
fill: none; |
|
stroke: black; |
|
stroke-width: 1.5px; |
|
} |
|
div.tooltip { |
|
position: absolute; |
|
text-align: center; |
|
width: 60px; |
|
height: 28px; |
|
padding: 2px; |
|
font: 12px sans-serif; |
|
background: none; |
|
border: 0px; |
|
border-radius: 8px; |
|
pointer-events: none; |
|
} |
|
|
|
.hover-line { |
|
stroke: red; |
|
stroke-width: 2px; |
|
stroke-dasharray: 3,3; |
|
} |
|
} |
|
</style> |
|
</head> |
|
|
|
<body> |
|
<script> |
|
|
|
var svg = d3.select("body").append("svg") |
|
.attr("width", 960) |
|
.attr("height", 500); |
|
|
|
var width = 800; |
|
var height = 400; |
|
|
|
// See formats http://bl.ocks.org/zanarmstrong/raw/05c1e95bf7aa16c4768e/ |
|
// Data sample {"name": "G", "value": 10, "date": "2016-07"} |
|
var parseDate = d3.timeParse("%Y-%m"); |
|
var displayDate = d3.timeFormat("%b %y"); |
|
var displayValue = d3.format(",.0f"); |
|
|
|
// Ordinal scale |
|
var x = d3.scaleTime() |
|
.range([0, width]); |
|
|
|
// Linear scale |
|
var y = d3.scaleLinear() |
|
.range([height, height - 200]); |
|
|
|
var line = d3.line() |
|
.x(function(d) { return x(d.date); }) |
|
.y(function(d) { return y(d.value); }); |
|
var div = d3.select("body").append("div") |
|
.attr("class", "tooltip") |
|
.style("opacity", 0); |
|
|
|
var g = svg.append("g") |
|
.attr("transform", "translate(50, 0)") |
|
|
|
d3.json("dataset.json", function(error, data) { |
|
if (error) throw error; |
|
|
|
// Pre-processing |
|
data.forEach(function(d) { |
|
d.value = +d.value; |
|
d["date"] = parseDate(d["date"]); |
|
}); |
|
|
|
x.domain(d3.extent(data, function(d) { return d.date; })); |
|
y.domain([0, d3.max(data, function(d) { return d.value; })]); |
|
|
|
svg.selectAll(".label").data(data).enter() |
|
.append("text") |
|
.attr("class", "label") |
|
.text(function(d, i) { return displayDate(d.date); }) |
|
.attr("y", 420) |
|
.attr("x", function(d) { return x(d.date); }) |
|
.style("font-size", 10) |
|
.style("font-family", "monospace"); |
|
|
|
// Display last value |
|
g.selectAll(".value").data([data[data.length -1]]).enter() |
|
.append("text") |
|
.text(function(d, i) { return displayValue(d.value); }) |
|
.attr("class", "value") |
|
.attr("y", function(d) { return y(d.value); }) |
|
.attr("x", width + 10) |
|
.style("font-size", 20) |
|
.style("font-family", "monospace"); |
|
|
|
g.selectAll(".line").data([data]).enter().append("path") |
|
.attr("class", "line") |
|
.attr("d", line); |
|
/// |
|
|
|
g.append("line") |
|
.attr("class", "x-hover-line hover-line") |
|
.attr("y1", 0) |
|
.attr("y2", height); |
|
|
|
g.append("line") |
|
.attr("class", "y-hover-line hover-line") |
|
.attr("x1", width) |
|
.attr("x2", width); |
|
/// |
|
g.selectAll("rect") |
|
.attr("transform", "translate(50, 0)") |
|
.attr("class", "overlay") |
|
.attr("width", width) |
|
.attr("height", height) |
|
.on("mouseover", function() { focus.style("display", null); }) |
|
.on("mouseout", function() { focus.style("display", "none"); }) |
|
.on("mousemove", function (){ |
|
g.select(".x-hover-line").attr("y2", height - y(d.value)); |
|
g.select(".y-hover-line").attr("x2", width + width); |
|
}); |
|
|
|
g.selectAll('circle') |
|
.data(data) |
|
.enter().append('circle') |
|
.attr('cx', function(d) { |
|
return x(d.date); |
|
}) |
|
.attr('cy', function(d) { |
|
return y(d.value); |
|
}) |
|
.attr('r', 10) |
|
.attr('fill',"#d9d0e6") |
|
.on("mouseover", function(d) { |
|
d3.select(this).style("fill", "red") |
|
.style("font-size", 20) |
|
.style("font-size", 24) |
|
div.transition() |
|
.duration(200) |
|
.style("opacity", .9); |
|
div .html(d.value) |
|
.style("left", (d3.event.pageX-20) + "px") |
|
.style("top", (d3.event.pageY - 40) + "px"); |
|
|
|
|
|
}) |
|
.on("mouseout", function(d) { |
|
d3.select(this).transition().duration(500).style("fill", "#d9d0e6") |
|
// Should be using Ids instead of values |
|
.transition().duration(500) |
|
.style("font-size", 12) |
|
div.transition() |
|
.duration(500) |
|
.style("opacity", 0); |
|
|
|
}); |
|
|
|
}); |
|
// function mouse () |
|
|
|
</script> |
|
</body> |
|
|
|
|
|
|
|
|
