我正在通过教程学习使用 d3.js。
在 javascript 控制台 (Chrome) 中输入以下代码并创建一个折线图。
现在如何获取此代码并使其在 html 页面中运行？
var lineData = [ { "x": 1, "y": 5}, { "x": 20, "y": 20},
{ "x": 40, "y": 10}, { "x": 60, "y": 40},
{ "x": 80, "y": 5}, { "x": 100, "y": 60}];
//This is the accessor function we talked about above
var lineFunction = d3.svg.line()
.x(function(d) { return d.x; })
.y(function(d) { return d.y; })
.interpolate("linear");
//The SVG Container
var svgContainer = d3.select("body").append("svg")
.attr("width", 200)
.attr("height", 200);
//The line SVG Path we draw
var lineGraph = svgContainer.append("path")
.attr("d", lineFunction(lineData))
.attr("stroke", "blue")
.attr("stroke-width", 2)
.attr("fill", "none");
yourfile.html.html,head和body。script带有src="http://d3js.org/d3.v3.min.js".script的末尾body。yourfile.html在浏览器中打开。总而言之，您的文件可能如下所示：
<!DOCTYPE html>
<html>
<head>
<script src="http://d3js.org/d3.v3.min.js" charset="utf-8"></script>
</head>
<body>
<script type="text/javascript">
var lineData = [ { "x": 1, "y": 5}, { "x": 20, "y": 20}, { "x": 40, "y": 10}, { "x": 60, "y": 40}, { "x": 80, "y": 5}, { "x": 100, "y": 60}];
//This is the accessor function we talked about above
var lineFunction = d3.svg.line().x(function(d) { return d.x; }).y(function(d) { return d.y; }).interpolate("linear");
//The SVG Container
var svgContainer = d3.select("body").append("svg").attr("width", 200).attr("height", 200);
//The line SVG Path we draw
var lineGraph = svgContainer.append("path").attr("d", lineFunction(lineData)).attr("stroke", "blue").attr("stroke-width", 2).attr("fill", "none");
</script>
</body>
</html>