test/aria-pie.html


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<html>
    <head>
        <meta charset="utf-8">
        <script src="lib/simpleRequire.js"></script>
        <script src="lib/config.js"></script>
        <script src="lib/jquery.min.js"></script>
        <script src="lib/facePrint.js"></script>
        <script src="lib/testHelper.js"></script>
        <meta name="viewport" content="width=device-width, initial-scale=1" />
    </head>
    <body>
        <style>
            h1 {
                line-height: 60px;
                height: 60px;
                background: #146402;
                text-align: center;
                font-weight: bold;
                color: #eee;
                font-size: 14px;
            }
            .chart {
                height: 600px;
            }
        </style>

        <div id="main" class="chart"></div>
        <p id="aria-1"></p>

        <div id="main2" class="chart"></div>
        <p id="aria-2"></p>
        <script>

        require(['echarts'],
            function (echarts) {

                var chart = echarts.init(document.getElementById('main'));

                chart.setOption({
                    aria: {
                        enabled: true
                    },
                    title : {
                        text: '某站点用户访问来源',
                        subtext: '纯属虚构',
                        x:'center'
                    },
                    tooltip : {
                        trigger: 'item',
                        formatter: "{a} <br/>{b} : {c} ({d}%)"
                    },
                    legend: {
                        orient: 'vertical',
                        left: 'left',
                        data: ['直接访问','邮件营销','联盟广告','视频广告(value is null)','搜索引擎']
                    },
                    series : [
                        {
                            name: '访问来源',
                            type: 'pie',
                            radius : '55%',
                            center: ['50%', '60%'],
                            selectedMode: 'single',
                            data:[
                                {value:335, name:'直接访问'},
                                {value:310, name:'邮件营销'},
                                {value:234, name:'联盟广告'},
                                {value:null, name:'视频广告(value is null)'},
                                {value:1548, name:'搜索引擎'}
                            ],
                            emphasis: {
                                itemStyle: {
                                    shadowBlur: 10,
                                    shadowOffsetX: 0,
                                    shadowColor: 'rgba(0, 0, 0, 0.5)'
                                }
                            }
                        }
                    ]
                });

                document.getElementById('aria-1').innerText = chart.getDom().getAttribute('aria-label');

                var chart2 = echarts.init(document.getElementById('main2'));

                chart2.setOption(
                    {
                        "dataset": {
                            "dimensions": ["c_0", "c_1"],
                            "source": [{"c_0": "Amount used", "c_1": 1699.0}, {"c_0": "Amount left", "c_1": 2301.0}]
                        },
                        "series": [{
                            "type": "pie", "silent": true,
                            "encode": {"itemName": "c_0", "value": "c_1"},
                            "radius": ["30%", "60%"]
                        }],
                        "aria": {"show": true}
                    }
                );
                document.getElementById('aria-2').innerText = chart2.getDom().getAttribute('aria-label');
            }
        );
        </script>
    </body>
</html>