使用D3 - V4,我製作了一個簡單的環形圖表。我只有三個輸入字母--A,B,C。他們的頻率爲60,30,10。我想要一張甜甜圈圖表,但我卻錯誤地出現了。D3 - 製作一個有錯誤的簡單環形圖表
我從這裏走的幫助... http://jsfiddle.net/Qh9X5/1196/
雖然它是基於V3,我使用V4,並取得了相應的改變。
片段:
<html>
<head>
<script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.4.12/angular.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/4.3.0/d3.min.js"></script>
</head>
<body ng-app="myApp" ng-controller="myCtrl">
<svg></svg>
<script>
//module declaration
var app = angular.module('myApp',[]);
//Controller declaration
app.controller('myCtrl',function($scope){
$scope.svgWidth = 800;//svg Width
$scope.svgHeight = 500;//svg Height
//Data in proper format
var data = [
{"letter": "A","frequency": "60"},
{"letter": "B","frequency": "30"},
{"letter": "C","frequency": "10"}
];
//removing prior svg elements ie clean up svg
d3.select('svg').selectAll("*").remove();
//resetting svg height and width in current svg
d3.select("svg").attr("width", $scope.svgWidth).attr("height", $scope.svgHeight);
//Setting up of our svg with proper calculations
var svg = d3.select("svg");
var margin = {top: 20, right: 20, bottom: 30, left: 40};
var width = svg.attr("width") - margin.left - margin.right;
var height = svg.attr("height") - margin.top - margin.bottom;
//Plotting our base area in svg in which chart will be shown
var g = svg.append("g").attr("transform", "translate(" + margin.left + "," + margin.top + ")");
var pie = d3.layout.pie().sort(null);
var piedata = pie(data.frequency);
var arc = d3.arc()
.innerRadius(radius - 100)
.outerRadius(radius - 50);
var path = g.selectAll("path")
.data(piedata)
.enter().append("path")
.attr("fill",function() { return "hsl(" + Math.random() * 360 + ",100%,50%)"; })
.attr("d", arc);
g.selectAll("text").data(data.letter)
.enter()
.append("text")
.attr("text-anchor", "middle")
.attr("x", function(d) {
var a = d.startAngle + (d.endAngle - d.startAngle)/2 - Math.PI/2;
d.cx = Math.cos(a) * (radius - 75);
return d.x = Math.cos(a) * (radius - 20);
})
.attr("y", function(d) {
var a = d.startAngle + (d.endAngle - d.startAngle)/2 - Math.PI/2;
d.cy = Math.sin(a) * (radius - 75);
return d.y = Math.sin(a) * (radius - 20);
})
});
</script>
</body>
</html>
錯誤:
任何幫助,將不勝感激。請幫我繪製D3簡單的圓環圖 - V4
爲一個創建的jsfiddle有問題 – Sajeetharan
https://jsfiddle.net/dpbmjLfm/ – Deadpool