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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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software distributed under the License is distributed on an
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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/dat.gui.min.js"></script>
        <link rel="stylesheet" href="lib/reset.css">
    </head>
    <body>
        <style>
            html, body, #main {
                width: 100%;
                height: 100%;
            }
        </style>
        <div id="main"></div>
        <script>

            require([
                '../node_modules/seedrandom/seedrandom.js',
                'echarts',
            ], function (seedrandom, echarts) {
                Math.random = new seedrandom('echarts-random');

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

                var symbolList = [
                    'circle',
                    'triangle',
                    'diamond',
                    'pin',
                    'image://./asset/echarts-logo.png',
                    'path://M432.45,595.444c0,2.177-4.661,6.82-11.305,6.82c-6.475,0-11.306-4.567-11.306-6.82s4.852-6.812,11.306-6.812C427.841,588.632,432.452,593.191,432.45,595.444L432.45,595.444z M421.155,589.876c-3.009,0-5.448,2.495-5.448,5.572s2.439,5.572,5.448,5.572c3.01,0,5.449-2.495,5.449-5.572C426.604,592.371,424.165,589.876,421.155,589.876L421.155,589.876z M421.146,591.891c-1.916,0-3.47,1.589-3.47,3.549c0,1.959,1.554,3.548,3.47,3.548s3.469-1.589,3.469-3.548C424.614,593.479,423.062,591.891,421.146,591.891L421.146,591.891zM421.146,591.891',
                    'emptyPath://M432.45,595.444c0,2.177-4.661,6.82-11.305,6.82c-6.475,0-11.306-4.567-11.306-6.82s4.852-6.812,11.306-6.812C427.841,588.632,432.452,593.191,432.45,595.444L432.45,595.444z M421.155,589.876c-3.009,0-5.448,2.495-5.448,5.572s2.439,5.572,5.448,5.572c3.01,0,5.449-2.495,5.449-5.572C426.604,592.371,424.165,589.876,421.155,589.876L421.155,589.876z M421.146,591.891c-1.916,0-3.47,1.589-3.47,3.549c0,1.959,1.554,3.548,3.47,3.548s3.469-1.589,3.469-3.548C424.614,593.479,423.062,591.891,421.146,591.891L421.146,591.891zM421.146,591.891'
                ];

                function random(max) {
                    return (Math.random() * max).toFixed(3);
                }

                var series = symbolList.map(function (symbol, idx) {
                    var seriesData = [];
                    for (var i = 0; i < 20; i++) {
                        seriesData.push([random(10), random(10), (+random(0.5) + 0.2).toFixed(3)]);
                    }
                    return {
                        name: symbol.split('://')[0],
                        type: 'scatter',
                        symbol: symbol,
                        symbolSize: function (val) {
                            if (symbol.indexOf('path') >= 0 || symbol.indexOf('Path') >= 0) {
                                return [val[2] * 60, val[2] * 40];
                            }
                            else {
                                return val[2] * 60;
                            }
                        },
                        label: {
                            emphasis: {
                                show: false
                            }
                        },
                        data: seriesData
                    };
                });

                chart.setOption({
                    legend: {
                        data: series.map(function (series) {return series.name;})
                    },
                    xAxis: {
                        type: 'value',
                        splitLine: {
                            show: false
                        }
                    },
                    yAxis: {
                        type: 'value',
                        splitLine: {
                            show: false
                        }
                    },
                    series: series
                });

                window.addEventListener('resize', chart.resize);

                var symbolScaleValueMap = {
                    'undefined': undefined,
                    'null': null,
                    'true': true,
                    'false': false,
                    '0': 0,
                    '0.5': 0.5,
                    '1': 1,
                    '1.1': 1.1,
                    '2': 2,
                    'NaN': NaN,
                    'Infinity': Infinity,
                    'Negative(-1)': -1,
                    'Empty String': '',
                    'String(\'abc\')': 'abc'
                }

                var config = {
                    hoverScale: 'false',
                    tooltipTrigger: 'item'
                };

                var gui = new dat.GUI();
                gui.add(config, 'hoverScale', Object.keys(symbolScaleValueMap))
                    .onChange(update);
                gui.add(config, 'tooltipTrigger', ['axis', 'item'])
                    .onChange(update);

                update();

                function update() {
                    var activeHoverScale = symbolScaleValueMap[config.hoverScale];
                    console.log('active hoverScale', activeHoverScale);
                    series.forEach(function (series) {
                        series.emphasis = series.emphasis || {};
                        series.emphasis.scale = activeHoverScale;
                    });
                    var tooltip = {
                        trigger: config.tooltipTrigger,
                        axisPointer: config.tooltipTrigger === 'axis'
                            ? { type: 'cross' }
                            : null
                    };
                    console.log(tooltip);
                    chart.setOption({
                        tooltip: tooltip,
                        series: series
                    });
                }
            });

        </script>
    </body>
</html>