Question

我是D3 / nvd3的新手。试图用线条显示“外部”标签，类似于Bostock的饼图http://bl.ocks.org/dbuezas/9306799。我不知道如何接近标签线以显示像nvd3那样。饼图和标签正确显示！有关如何显示标签线的任何帮助将非常感谢！目前我所遵循的方法与nvd3（http://plnkr.co/edit/OlROrZ?p=preview）提供的基本示例非常相似。

app.js

var app = angular.module('plunker', ['nvd3']);

app.controller('MainCtrl', function($scope) {
 $scope.options = {
            chart: {
                type: 'pieChart',
                height: 450,
                donut: true,
                x: function(d){return d.key;},
                y: function(d){return d.y;},
                showLabels: true,
                labelsOutside: true,
                pie: {
                    startAngle: function(d) { return d.startAngle/2 -Math.PI/2 },
                    endAngle: function(d) { return d.endAngle/2 -Math.PI/2 }
                },
                duration: 500,
                legend: {
                    margin: {
                        top: 5,
                        right: 70,
                        bottom: 5,
                        left: 0
                    }
                }
            }
        };

        $scope.data = [
            {
                key: "One",
                y: 5
            },
            {
                key: "Two",
                y: 2
            },
            {
                key: "Three",
                y: 9
            },
            {
                key: "Four",
                y: 7
            },
            {
                key: "Five",
                y: 4
            },
            {
                key: "Six",
                y: 3
            },
            {
                key: "Seven",
                y: .5
            }
        ];
});

的index.html

<!DOCTYPE html>
<html ng-app="plunker">

  <head>
    <meta charset="utf-8" />
    <title>Angular-nvD3 Donut Chart</title>
    <script>document.write('<base href="' + document.location + '" />');</script>
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/nvd3/1.8.1/nv.d3.min.css"/>
    <script src="//ajax.googleapis.com/ajax/libs/angularjs/1.3.9/angular.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.6/d3.min.js" charset="utf-8"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/nvd3/1.8.1/nv.d3.min.js"></script>
    <script src="https://rawgit.com/krispo/angular-nvd3/v1.0.5/dist/angular-nvd3.js"></script>
    <script src="app.js"></script>
  </head>

  <body ng-controller="MainCtrl">

    <nvd3 options="options" data="data"></nvd3>

  </body>

</html>

Answer 1

您可以使用 Highcharts 代替angular-nvd3，以获得饼图的标签线。 Run in jsfiddle

Highcharts.chart('container', {
    chart: {
        plotBackgroundColor: null,
        plotBorderWidth: null,
        plotShadow: false,
        type: 'pie'
    },
    title: {
        text: 'Browser market shares January, 2015 to May, 2015'
    },
    tooltip: {
        pointFormat: '{series.name}: <b>{point.percentage:.1f}%</b>'
    },
    plotOptions: {
        pie: {
            allowPointSelect: true,
            cursor: 'pointer',
            dataLabels: {
                enabled: true,
                format: '<b>{point.name}</b>: {point.percentage:.1f} %',
                style: {
                    color: (Highcharts.theme && Highcharts.theme.contrastTextColor) || 'black'
                }
            }
        }
    },
    series: [{
        name: 'Brands',
        colorByPoint: true,
        data: [{
            name: 'IE',
            y: 56.33
        }, {
            name: 'Chrome',
            y: 24.03,
            sliced: true,
            selected: true
        }, {
            name: 'Firefox',
            y: 10.38
        }, {
            name: 'Safari',
            y: 4.77
        }, {
            name: 'Opera',
            y: 0.91
        }, {
            name: 'Other',
            y: 0.2
        }]
    }]
});

<script src="https://code.highcharts.com/highcharts.js"></script>
<script src="https://code.highcharts.com/modules/exporting.js"></script>

<div id="container" style="min-width: 310px; height: 400px; max-width: 600px; margin: 0 auto"></div>

具有angular-nvd3的饼图标签行

1 个答案: