test/appendData2.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/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="lib/canteen.js"></script>
        <link rel="stylesheet" href="lib/reset.css" />
    </head>
    <body>

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

        <script>

        var chart;
        var recordContainer = document.getElementById('record');

        testHelper.controlFrame({
            pauseAt: 1,
            onFrame: function (frameNumber) {
                testHelper.printCanvasLayerDrawOperationsOnFrame(chart, frameNumber, recordContainer);
            }
        });

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

            const _ctx = {
                useDataZoom: {
                    value: false,
                    values: [false, true],
                },
                hoverLayerThreshold: {
                    value: undefined,
                    values: [undefined, 300, 1000, 0],
                },
                br0: {},
                large: {
                    text: 'series.large:',
                    value: false,
                    values: [true, false],
                },
                largeThreshold: {
                    text: 'series.largeThreshold:',
                    value: undefined,
                    values: [undefined, 1, 1000],
                },
                br1: {},
                progressive: {
                    text: 'series.progressive:',
                    value: 1,
                    values: [1, 1e4],
                },
                progressiveThreshold: {
                    text: 'series.progressiveThreshold:',
                    value: 1,
                    values: [undefined, 1, 1000],
                },
                br2: {},
                progressiveChunkMode: {
                    text: 'series.progressiveChunkMode:',
                    value: undefined,
                    values: [undefined, 'sequential', 'mod']
                }
            };

            var _iBatchCount;
            var _initXMaxTimes;
            var _xMax;
            var _xColLen;
            var _yCurr;
            var _currI;

            resetMeta();

            function resetMeta() {
                _iBatchCount = 1e4;
                _initXMaxTimes = 5;
                _xMax = _iBatchCount * _initXMaxTimes;
                _xColLen = 1e2;
                _yCurr = 100;
                _currI = 0;
            }

            function createSingleBatchData() {
                var seriesData = [];
                for (var len = _currI + _iBatchCount; _currI < len; _currI++) {
                    seriesData.push([_currI, _yCurr * (_currI % _xColLen)]);
                }
                return seriesData;
            }

            function createOption() {

                var largeSettingsSeries = {};
                if (_ctx.large.value != null) {
                    largeSettingsSeries.large = _ctx.large.value;
                }
                if (_ctx.largeThreshold.value != null) {
                    largeSettingsSeries.largeThreshold = _ctx.largeThreshold.value;
                }
                if (_ctx.progressive.value != null) {
                    largeSettingsSeries.progressive = _ctx.progressive.value;
                }
                if (_ctx.progressiveThreshold.value != null) {
                    largeSettingsSeries.progressiveThreshold = _ctx.progressiveThreshold.value;
                }
                if (_ctx.progressiveChunkMode.value != null) {
                    largeSettingsSeries.progressiveChunkMode = _ctx.progressiveChunkMode.value;
                }

                if (_ctx.hoverLayerThreshold.value != null) {
                    largeSettingsSeries.hoverLayerThreshold = _ctx.hoverLayerThreshold.value;
                }

                var initData = createSingleBatchData();

                var option = {
                    animation: false,
                    tooltip: {},
                    grid: {
                        top: 20,
                        bottom: 100,
                        left: 10,
                        right: 10,
                    },
                    xAxis: {
                        max: _xMax
                    },
                    yAxis: {},
                    series: [{
                        type: 'scatter',
                        ...largeSettingsSeries,
                        // name: 'data',
                        data: initData,
                        symbol: 'circle',
                        symbolSize: 6,
                        itemStyle: {
                            borderColor: '#111',
                            borderWidth: 1
                        }
                    }]
                };

                if (_ctx.useDataZoom.value) {
                    option.dataZoom = [
                        {type: 'slider'},
                        {type: 'inside'}
                    ]
                }

                return option;
            }

            function updateChart() {
                resetMeta();
                chart.setOption(createOption(), {notMerge: true});
            }

            chart = testHelper.create(echarts, 'main0', {
                title: [
                    'Cartesian appendData',
                    'Test: Click btn appendData **before** progressive rendering finished;',
                    'Test: Click btn appendData **after** the init data rendered.',
                    'Expect: rendered part should be **retained** if no dataZoom, otherwise discarded (PENDING).',
                ],
                option: createOption(),
                height: 350,
                // recordCanvas: true
                inputsStyle: 'compact',
                inputs: [
                    {
                        type: 'button',
                        text: 'appendData',
                        onclick() {
                            var newData = createSingleBatchData();
                            chart.appendData({
                                seriesIndex: 0,
                                data: newData
                            });
                        }
                    },
                    ...testHelper.createInputsSimply(_ctx, updateChart)
                ]
            });
        });
        </script>


    </body>
</html>