test/brush3.html

<!DOCTYPE html>
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<html>
    <head>
        <meta charset="utf-8">
        <meta name="viewport" content="width=device-width, initial-scale=1" />
        <script src="lib/esl.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>
        <link rel="stylesheet" href="lib/reset.css" />
    </head>
    <body>
        <style>
            .test-title {
                background: #146402;
                color: #fff;
            }
        </style>


        <div id="main0"></div>


        <script>

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

                var data = [];
                for (var i = 0; i < 500; i++) {
                    data.push([
                        Math.random() * 10,
                        Math.random() * 10
                    ]);
                }

                var option = {
                    toolbox: {
                        feature: {
                            brush: {
                                type: ['polygon', 'rect', 'lineX', 'lineY', 'keep', 'clear']
                            }
                        }
                    },
                    brush: {
                        xAxisIndex: 'all',
                        brushLink: 'all'
                    },
                    grid: {
                        width: 300,
                        height: 200
                    },
                    xAxis: {
                        min: 0,
                        max: 10
                    },
                    yAxis: {
                        min: 0,
                        max: 10
                    },
                    series: {
                        type: 'scatter',
                        symbolSize: 20,
                        data: data
                    }
                };

                var chart = testHelper.create(echarts, 'main0', {
                    title: 'The highlight symbol should on the top (not be overlapped)',
                    option: option,
                    info: {
                        brush: option.brush
                    }
                });

                chart && chart.dispatchAction({
                    type: 'brush',
                    areas: [
                        {
                            gridIndex: 0,
                            brushType: 'polygon',
                            coordRange: [[3, 2], [7, 2], [7, 6], [4, 3]]
                        }
                    ]
                });
            });

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