<!DOCTYPE html>
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to you under the Apache License, Version 2.0 (the
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   http://www.apache.org/licenses/LICENSE-2.0

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<html>
    <head>
        <meta charset="utf-8">
        <meta name="viewport" content="width=device-width, initial-scale=1" />
        <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>
        <!-- <script src="ut/lib/canteen.js"></script> -->
        <script src="lib/dat.gui.min.js"></script>
        <link rel="stylesheet" href="lib/reset.css" />
    </head>
    <body>
        <style>
        </style>


        <div id="main-none"></div>
        <div id="main0"></div>
        <div id="main1"></div>
        <div id="main2"></div>


        <script>
        require(['echarts'], function (echarts) {
            var count = 20;
            var data = [];
            var text = '';
            for (var i = 0; i < count; i++) {
                text += String.fromCharCode(65 + i) + String.fromCharCode(97 + i);
                data.push({
                    name: i + text,
                    value: Math.random()
                });
            }

            var optionNone = {
                tooltip: {
                    show: true
                },
                series: [{
                    type: 'pie',
                    radius: '50%',
                    data: data,

                    labelLine: {
                        length2: 15
                    },
                    label: {
                        edgeDistance: 20,
                        position: 'outer'
                    }
                }]
            };

            var option0 = {
                series: [{
                    type: 'pie',
                    radius: '50%',
                    data: data,

                    labelLine: {
                        length2: 15
                    },
                    label: {
                        edgeDistance: 20,
                        position: 'outer',
                        alignTo: 'labelLine'
                    }
                }]
            };

            var option1 = {
                series: [{
                    type: 'pie',
                    radius: '50%',
                    data: data,

                    labelLine: {
                        length2: 15
                    },
                    label: {
                        edgeDistance: 20,
                        position: 'outer',
                        alignTo: 'edge'
                    }
                }]
            };

            var option2 = {
                series: [{
                    type: 'pie',
                    radius: '25%',
                    center: ['50%', '50%'],
                    data: data,

                    labelLine: {
                        length2: 15
                    },
                    label: {
                        position: 'outer',
                        alignTo: 'edge'
                    },
                    left: 0,
                    right: '50%',
                    top: 0,
                    bottom: '50%'
                }, {
                    type: 'pie',
                    radius: '25%',
                    center: ['50%', '50%'],
                    data: data,

                    labelLine: {
                        length2: 15
                    },
                    label: {
                        bleedMargin: 20,
                        edgeDistance: 20,
                        position: 'outer',
                        alignTo: 'labelLine'
                    },
                    left: '50%',
                    right: 0,
                    top: 0,
                    bottom: '50%'
                }, {
                    type: 'pie',
                    radius: '25%',
                    center: ['50%', '50%'],
                    data: data,

                    labelLine: {
                        length2: 15
                    },
                    label: {
                        position: 'outer',
                        alignTo: 'edge'
                    },
                    left: 0,
                    right: '50%',
                    top: '50%',
                    bottom: 0
                }, {
                    type: 'pie',
                    radius: '25%',
                    center: ['50%', '50%'],
                    data: data,

                    labelLine: {
                        length2: 15
                    },
                    label: {
                        edgeDistance: 20,
                        position: 'outer',
                        alignTo: 'labelLine'
                    },
                    left: '50%',
                    right: 0,
                    top: '50%',
                    bottom: 0
                }],
                graphic: {
                    elements: [{
                        type: 'rect',
                        shape: {
                            x: 20,
                            y: 0,
                            width: window.innerWidth / 2 - 40,
                            height: 200
                        },
                        style: {
                            fill: 'none',
                            stroke: '#f00'
                        }
                    }, {
                        type: 'rect',
                        shape: {
                            x: window.innerWidth / 2 + 20,
                            y: 0,
                            width: window.innerWidth / 2 - 40,
                            height: 200
                        },
                        style: {
                            fill: 'none',
                            stroke: '#f00'
                        }
                    }, {
                        type: 'rect',
                        shape: {
                            x: 20 ,
                            y: 200,
                            width: window.innerWidth / 2 - 40,
                            height: 200
                        },
                        style: {
                            fill: 'none',
                            stroke: '#f00'
                        }
                    }, {
                        type: 'rect',
                        shape: {
                            x: window.innerWidth / 2 + 20,
                            y: 200,
                            width: window.innerWidth / 2 - 40,
                            height: 200
                        },
                        style: {
                            fill: 'none',
                            stroke: '#f00'
                        }
                    }]
                }
            };

            var chartNone = testHelper.create(echarts, 'main-none', {
                title: 'alignTo: "none"',
                option: optionNone
            });

            var chart0 = testHelper.create(echarts, 'main0', {
                title: 'alignTo: "labelLine"',
                option: option0
            });

            var chart1 = testHelper.create(echarts, 'main1', {
                title: 'alignTo: "edge"',
                option: option1
            });

            var chart2 = testHelper.create(echarts, 'main2', {
                title: 'Multiple charts',
                option: option2
            });

            var gui = new dat.GUI();
            var config = {
                length2: 15,
                edgeDistance: 20,
                overflow: 'truncate'
            };

            function update() {
                const newOpt = {
                    series: [{
                        labelLine: {
                            length2: config.length2
                        },
                        label: {
                            edgeDistance: config.edgeDistance,
                            overflow: config.overflow
                        }
                    }]
                }
                chart0.setOption(newOpt);
                chart1.setOption(newOpt);
                chartNone.setOption(newOpt);

                const newOpt2 = { series: [] };
                for (var i = 0; i < 4; ++i) {
                    newOpt2.series.push({
                        labelLine: {
                            length2: config.length2,
                        },
                        label: {
                            edgeDistance: config.edgeDistance,
                            overflow: config.overflow
                        }
                    })
                }
                chart2.setOption(newOpt2);
            }

            gui.add(config, 'length2', 0, 300).onChange(update);
            gui.add(config, 'edgeDistance', 0, 300).onChange(update);
            gui.add(config, 'overflow', ['truncate', 'break', 'breakAll']).onChange(update);
        });
        </script>
    </body>
</html>