test/marker-dataset-encode.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="ut/lib/canteen.js"></script> -->
        <link rel="stylesheet" href="lib/reset.css" />
    </head>
    <body>
        <div id="main0"></div>
        <div id="main1"></div>

        <script>
            require(["echarts"], async function (echarts) {
                var option;

                const upColor = "#ec0000";
                const upBorderColor = "#8A0000";
                const downColor = "#00da3c";
                const downBorderColor = "#008F28";
                const dataCount = 1000;
                const data = generateOHLC(dataCount);
                option = {
                    dataset: {
                        source: data,
                    },
                    title: {
                        text:
                            "Data Amount: " +
                            echarts.format.addCommas(dataCount),
                    },
                    xAxis: [
                        {
                            type: "time",
                            boundaryGap: false,
                            // inverse: true,
                            axisLine: { onZero: false },
                            splitLine: { show: false },
                            min: "dataMin",
                            max: "dataMax",
                        },
                    ],
                    yAxis: [
                        {
                            scale: true,
                            splitArea: {
                                show: true,
                            },
                        },
                    ],
                    dataZoom: [
                        {
                            type: "inside",
                            start: 0,
                            end: 100,
                        },
                    ],

                    series: [
                        {
                            name: "Candles",
                            type: "candlestick",
                            encode: {
                                x: 6,
                                y: [1, 4, 3, 2],
                            },
                            markLine: {
                                data: [
                                    [
                                        {
                                            name: "marker line",
                                            xAxis: "2011-01-01T10:50:00Z",
                                            yAxis: data[300][1],
                                            label: {
                                                position: "start",
                                            },
                                        },
                                        {
                                            xAxis: "2011-01-01T11:55:00Z",
                                            yAxis: data[700][1],
                                        },
                                    ],
                                ],
                            },
                            markPoint: {
                                data: [
                                    {
                                        value: "markerPoint",
                                        yAxis: data[100][1],
                                        xAxis: data[100][6],
                                    },
                                ],
                            },
                            markArea: {
                                data: [
                                    [
                                        {
                                            name: "平均值到最大值",
                                            type: "average",
                                        },
                                        {
                                            type: "max",
                                        },
                                    ],
                                ],
                            },
                        },
                    ],
                };
                function generateOHLC(count) {
                    let data = [];
                    let xValue = +new Date(2011, 0, 1);
                    let minute = 60 * 1000;
                    let baseValue = Math.random() * 12000;
                    let boxVals = new Array(4);
                    let dayRange = 12;
                    for (let i = 0; i < count; i++) {
                        baseValue = baseValue + Math.random() * 20 - 10;
                        for (let j = 0; j < 4; j++) {
                            boxVals[j] =
                                (Math.random() - 0.5) * dayRange + baseValue;
                        }
                        boxVals.sort();
                        let openIdx = Math.round(Math.random() * 3);
                        let closeIdx = Math.round(Math.random() * 2);
                        if (closeIdx === openIdx) {
                            closeIdx++;
                        }
                        let volumn = boxVals[3] * (1000 + Math.random() * 500);
                        // ['open', 'close', 'lowest', 'highest', 'volumn']
                        // [1, 4, 3, 2]
                        data[i] = [
                            0,
                            +boxVals[openIdx].toFixed(2),
                            +boxVals[3].toFixed(2),
                            +boxVals[0].toFixed(2),
                            +boxVals[closeIdx].toFixed(2),
                            +volumn.toFixed(0),
                            echarts.format.formatTime(
                                "yyyy-MM-ddThh:mm:ssZ",
                                (xValue += minute)
                            ),
                            getSign(
                                data,
                                i,
                                +boxVals[openIdx],
                                +boxVals[closeIdx],
                                4
                            ), // sign
                        ];
                    }
                    return data;
                    function getSign(
                        data,
                        dataIndex,
                        openVal,
                        closeVal,
                        closeDimIdx
                    ) {
                        var sign;
                        if (openVal > closeVal) {
                            sign = -1;
                        } else if (openVal < closeVal) {
                            sign = 1;
                        } else {
                            sign =
                                dataIndex > 0
                                    ? // If close === open, compare with close of last record
                                      data[dataIndex - 1][closeDimIdx] <=
                                      closeVal
                                        ? 1
                                        : -1
                                    : // No record of previous, set to be positive
                                      1;
                        }
                        return sign;
                    }
                }

                var chart = testHelper.create(echarts, "main0", {
                    title: ["MarkLine should be displayed"],
                    option: option,
                });
            });
        </script>

        <script>
            require(["echarts"], async function (echarts) {
                var option = {
                    dataset: {
                        source: [
                            ["score", "amount", "product"],
                            [89.3, 58212, "Matcha Latte"],
                            [57.1, 78254, "Milk Tea"],
                            [74.4, 41032, "Cheese Cocoa"],
                            [50.1, 12755, "Cheese Brownie"],
                            [89.7, 20145, "Matcha Cocoa"],
                            [68.1, 79146, "Tea"],
                            [19.6, 91852, "Orange Juice"],
                            [10.6, 101852, "Lemon Juice"],
                            [32.7, 20112, "Walnut Brownie"],
                        ],
                    },
                    xAxis: { type: "category" },
                    yAxis: {
                        type: "value",
                    },
                    series: [
                        {
                            type: "bar",
                            encode: {
                                x: "product",
                                y: "amount",
                            },
                            markLine: {
                                data: [
                                    {
                                        name: "平均线",
                                        type: "average",
                                    },
                                ],
                            },
                            markPoint: {
                                data: [
                                    {
                                        value: "固定 x 像素位置",
                                        yAxis: 80000,
                                        x: "30%",
                                    },
                                ],
                            },
                            markArea: {
                                data: [
                                    [
                                        {
                                            name: "平均值到最大值",
                                            type: "average",
                                        },
                                        {
                                            type: "max",
                                        },
                                    ],
                                    [
                                        {
                                            name: "10000~20000",
                                            yAxis: 10000,
                                        },
                                        {
                                            yAxis: 20000,
                                        },
                                    ],
                                ],
                            },
                        },
                    ],
                };

                var chart = testHelper.create(echarts, "main1", {
                    title: ["Marker line/point/area should be displayed"],
                    option: option,
                });
            });
        </script>
    </body>
</html>