如何将事件添加到由d3.js创建的饼图的各个部分(弧)中? [英] How to add events to the individual sections(arcs) of a pie chart created out of d3.js?
本文介绍了如何将事件添加到由d3.js创建的饼图的各个部分(弧)中?的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
这是创建用于协议分发的饼图的基本代码.在我的.csv文件中，我有两列，即协议名称和百分比.我想在单个弧上添加事件.例如，当我仅单击包含TCP统计信息的弧时，它应指向另一页.请帮助我该怎么做.我能够为整个饼图添加click事件.
This is a basic code to create a pie chart for protocol distribution. In my .csv file, I have two columns viz., protocol name and the percentage.I want to add events on individual arcs. For example, when i click only on the arc containing TCP stats, it should lead to another page. Please help how can i do this. I was able to add click event for the pie chart as whole.
<!DOCTYPE html>
<meta charset="utf-8">
<style>
body {
font: 10px sans-serif;
}
.arc path {
stroke: #fff;
}
</style>
<body>
<script src="http://d3js.org/d3.v3.min.js"></script>
<script>
var width = 960,
height = 500,
radius = Math.min(width, height) / 2;
var color = d3.scale.ordinal()
.range(["#98abc5", "#8a89a6", "#7b6888", "#6b486b", "#a05d56", "#d0743c", "#ff8c00"]);
var arc = d3.svg.arc()
.outerRadius(radius - 10)
.innerRadius(0);
var pie = d3.layout.pie()
.sort(null)
.value(function(d) { return d.count; });
var svg = d3.select("body").append("svg")
.attr("width", width)
.attr("height", height)
.append("g")
.attr("transform", "translate(" + width / 2 + "," + height / 2 + ")");
d3.csv("flow_count.csv", function(error, data) {
data.forEach(function(d) {
d.count = +d.count;
});
var g = svg.selectAll(".arc")
.data(pie(data))
.enter().append("g")
.attr("class", "arc");
g.append("path")
.attr("d", arc)
.style("fill", function(d) { return color(d.data.proto); });
g.append("text")
.attr("transform", function(d) { return "translate(" + arc.centroid(d) + ")"; })
.attr("dy", ".35em")
.style("text-anchor", "middle")
.text(function(d) { return d.data.proto; });
g.on( "click", function(d,i) {
window.location.href='index.html';
})
});
</script>
推荐答案
在"svg.selectAll(.bar")中，您可以添加一个单击行:
Within the "svg.selectAll(".bar") you could add an on click line:
svg.selectAll(".bar")
.data(data)
.enter().append("rect")
.attr("class", "bar")
.attr("x", function(d) { return x(d.letter); })
.attr("width", x.rangeBand())
.attr("y", function(d) { return y(d.frequency); })
.attr("height", function(d) { return height - y(d.frequency); })
.on("click", function(d) {
// code you want executed on the click event
});
这篇关于如何将事件添加到由d3.js创建的饼图的各个部分(弧)中?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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