Created
July 24, 2017 22:50
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D3 v4 fake line plot
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<!DOCTYPE html> | |
<meta charset="utf-8"> | |
<html> | |
<head> | |
<script src="https://d3js.org/d3.v4.min.js"></script> | |
</head> | |
<body> | |
<svg width="300" height="300"></svg> | |
<script> | |
// constants to help with the X axis | |
var limit = 60 * 1, | |
duration = 360000, | |
now = new Date(Date.now() - duration); | |
var width = 400, | |
height = 200 | |
var x = d3.scaleTime() | |
.domain([now - duration, now - (limit-2)]) | |
.range([0, width]) | |
var y = d3.scaleLinear() | |
.domain([0, 100]) | |
.range([height, 0]) | |
var svg = d3.select('svg') | |
.attr('class', 'chart') | |
.attr('width', width) | |
.attr('height', height + 300) | |
ADJUSTME = 3600; | |
var line = d3.line() | |
.x(function(d, i) { return x(now - (limit - 1 - i) * ADJUSTME) }) | |
.y(function(d) { return y(d) }) | |
var xAxis = d3.axisBottom(x).ticks(d3.timeMinute.every(1)) | |
svg.append('g') | |
.attr('class', 'x axis') | |
.attr('transform', 'translate(0,' + height + ')') | |
.call(xAxis) | |
var yAxis = d3.axisLeft(y); | |
svg.append('g') | |
.attr('class', 'y axis') | |
.call(yAxis) | |
.append("text") | |
.attr("fill", "#000") | |
.attr("transform", "rotate(-90)") | |
.attr("y", 5) | |
.attr("dy", "1.0em") | |
.attr("text-anchor", "end") | |
.attr('font-size', "1.5em") | |
.text("Temp F"); | |
// create dummy data | |
var temps = []; | |
for (var i=0; i<60; i++) | |
{ | |
temps.push(i); | |
} | |
svg.append('g') | |
.append('path') | |
.datum(temps) | |
.attr('class', 'current' + ' group') | |
.style('stroke', 'purple') | |
.attr('d', line) | |
</script> | |
</body> | |
</html> |
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