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Basic Line Chart
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<html> | |
<head> | |
<title>Basic Line Chart</title> | |
<script src="https://d3js.org/d3.v7.min.js"></script> | |
<style> | |
/* Style information for axis labels */ | |
.axis-label { | |
font-family: sans-serif; | |
font-size: 12px; | |
} | |
/* Style information for axis lines and tick marks */ | |
.axis path, | |
.axis line { | |
fill: none; | |
stroke: black; | |
shape-rendering: crispEdges; | |
} | |
.axis text { | |
font-family: sans-serif; | |
font-size: 11px; | |
} | |
</style> | |
</head> | |
<body> | |
<svg width="640" height="480"></svg> | |
<script> | |
let margin = 40; | |
let data = [ | |
[0, 0.1], | |
[10, 0.4], | |
[20, 0.2], | |
[30, 0.3], | |
[40, 0.2], | |
[50, 0.5], | |
[60, 0.2], | |
[70, 0.9], | |
[80, 0.4], | |
[90, 0.3], | |
[100, 0.1], | |
]; | |
// Define scales for the x and y axes. | |
// We'll set the x axis to be 0-100 | |
var x = d3.scaleLinear() | |
.domain([0,100]) | |
.range([margin,640-margin]); | |
// And we'll set the y axis to be 0-1 | |
var y = d3.scaleLinear() | |
.domain([0,1]) | |
.range([480-margin,margin]); | |
let svg = d3.select("svg"); | |
// New draw the X axis and label. | |
svg.append("g") | |
.attr("class", "axis") | |
.attr("transform", "translate(0,"+(480-margin)+")") | |
.call(d3.axisBottom(x)) | |
svg.append("text") | |
.attr("class", "axis-label") | |
.attr("x", x(50)) | |
.attr("y", 480-3) | |
.style("text-anchor", "middle") | |
.text("X Axis Label"); | |
// Now the Y axis and label. | |
svg.append("g") | |
.attr("class", "axis") | |
.attr("transform", "translate("+margin+",0)") | |
.call(d3.axisLeft(y)); | |
svg.append("text") | |
.attr("transform", "rotate(90)") | |
.attr("class", "axis-label") | |
.attr("x", y(0.5)) | |
.attr("y", -3) | |
.style("text-anchor", "middle") | |
.text("Y Axis Label"); | |
// Add the line for the line chart. | |
let line = d3.line() | |
.x(d => x(d[0])) | |
.y(d => y(d[1])); | |
svg.append("path") | |
.attr("d", line(data)) | |
.attr("fill", "none") | |
.attr("stroke", "black"); | |
</script> | |
</body> | |
</html> |
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