【D3.V3.js系列教程】--（八）绘制SVG
【D3.V3.js系列教程】--（八）绘制SVG
1、创建SVG
//Width and height
var w = 500;
var h = 50;
var svg = d3.select("body")
.append("svg")
.attr("width", w) // <-- Here
.attr("height", h); // <-- and here!
2、数据驱动的SVG
var dataset = [ 5, 10, 15, 20, 25 ];
var dataset = [ 5, 10, 15, 20, 25 ];
var circles = svg.selectAll("circle")
.data(dataset)
.enter()
.append("circle");
circles.attr("cx", function(d, i) {
return (i * 50) + 25;
})
.attr("cy", h/2)
.attr("r", function(d) {
return d;
});
3、源码
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>testD3-7-drawSVG.html</title>
<script type="text/javascript" src="http://localhost:8080/spring/js/d3.v3.js"></script>
<style type="text/css">
</style>
</head>
<body>
<script type="text/javascript">
//Width and height
var w = 500;
var h = 50;
//Data
var dataset = [ 5, 10, 15, 20, 25 ];
//Create SVG element
var svg = d3.select("body")
.append("svg")
.attr("width", 500)
.attr("height", 50);
var circles = svg.selectAll("circle")
.data(dataset)
.enter()
.append("circle");
circles.attr("cx", function(d, i) {
return (i * 50) + 25;
})
.attr("cy", h/2)
.attr("r", function(d) {
return d;
});
</script>
</body>
</html>
4、效果
