test/axis-align-ticks-random.html - master - githubmirror/echarts

test/axis-align-ticks-random.html
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fix(alignTicks): Change alignTick strategy: (1) Previously some series data may be out of the calculated extent and can not be displayed. (2) Previously the precision is incorrect for small float number (fixed at 10 rather than based on the magnitude of the value). (3) Make the tick precision more acceptable when min/max of axis is fixed, and remove console warning, because whey can be specified when dataZoom dragging. (4) Clarify the related code for LogScale.
09 янв 2026, 19:53
09 янв 2026, 19:53ffcc636
<!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="ut/lib/canteen.js"></script> -->
        <link rel="stylesheet" href="lib/reset.css" />
    </head>
    <body>
        <style>
            h1 {
                line-height: 60px;
                height: 60px;
                background: #aaa;
                text-align: center;
                font-weight: bold;
                color: #eee;
                font-size: 14px;
            }

            .chart {
                width: 260px;
                height: 150px;
                display: inline-block;
            }
        </style>

        <h1>Ticks of right axis should be aligned and the ticks looks nice. All data are random</h1>
        <div id="main-default"></div>
        <h1>Min is fixed on the left axis</h1>
        <div id="main-min"></div>
        <h1>Max is fixed on the left axis</h1>
        <div id="main-max"></div>
        <h1>Min, max are both fixed on the left axis.</h1>
        <div id="main-min-max"></div>
        <h1>Min is fixed to -50 on the right axis</h1>
        <div id="main-right-min"></div>
        <h1>Max is fixed to 50 on the right axis</h1>
        <div id="main-right-max"></div>
        <h1>Min, max are both fixed to -50/50 on the right axis.</h1>
        <div id="main-right-min-max"></div>
        <h1>Min is fixed to 'dataMin' on the right axis</h1>
        <div id="main-right-min2"></div>
        <h1>Max is fixed to 'dataMax' on the right axis</h1>
        <div id="main-right-max2"></div>
        <h1>Min, max are both fixed to 'dataMin'/'dataMax' on the right axis.</h1>
        <div id="main-right-min-max2"></div>
        <h1>Right axis should follow split numbers from left axis.</h1>
        <div id="main-split-number"></div>






        <script>
        require([
            'echarts'
        ], function (echarts) {

            const __EC_OPTIONS_FOR_DEBUG = window.__EC_OPTIONS_FOR_DEBUG = {};


            function makeOption(leftMin, leftMax, rightMin, rightMax, splitNumber) {

                const seriesData = [];

                for (let d = 0; d < 2; d++) {
                    const data = [];
                    seriesData.push(data);
                    const minY = Math.random() * 100 - 50;
                    const range = Math.random() * 100;
                    for (let k = 0; k < 10; k++) {
                        data.push(minY + range * Math.random());
                    }
                }

                return {
                    animation: false,
                    grid: {
                        top: 10,
                        bottom: 20,
                        containLabel: true,
                        left: 5,
                        right: 5
                    },
                    xAxis: {
                        data: new Array(10).fill(10).map((a, idx) => idx + '')
                    },
                    yAxis: [{
                        splitNumber,
                        showMinLabel: true,
                        showMaxLabel: true,
                        min: leftMin,
                        max: leftMax,
                        axisLabel: {
                            fontSize: 10,
                            formatter: (val) => +val.toFixed(2)
                        }
                    }, {
                        alignTicks: true,
                        showMinLabel: true,
                        showMaxLabel: true,
                        min: rightMin,
                        max: rightMax,
                        axisLabel: {
                            fontSize: 10,
                            formatter: (val) => +val.toFixed(2)
                        }
                    }],
                    series: [{
                        type: 'bar',
                        yAxisIndex: 0,
                        data: seriesData[0]
                    }, {
                        type: 'line',
                        yAxisIndex: 1,
                        showSymbol: false,
                        data: seriesData[1]
                    }]
                }
            }

            function makeTestCharts(containerId, leftMin, leftMax, rightMin, rightMax) {
                __EC_OPTIONS_FOR_DEBUG[containerId] = [];
                const container = document.querySelector(containerId);
                for (let i = 0; i < 15; i++) {
                    const dom = document.createElement('div');
                    dom.className = 'chart';
                    const option = makeOption(leftMin, leftMax, rightMin, rightMax);
                    __EC_OPTIONS_FOR_DEBUG[containerId].push(option);
                    container.appendChild(dom);
                    const chart = echarts.init(dom);
                    chart.setOption(option);
                }
            }

            makeTestCharts('#main-default')
            makeTestCharts('#main-min', 'dataMin');
            makeTestCharts('#main-max', undefined, 'dataMax');
            makeTestCharts('#main-min-max', 'dataMin', 'dataMax');
            makeTestCharts('#main-right-min', undefined, undefined, -50);
            makeTestCharts('#main-right-max', undefined, undefined, undefined, 50);
            makeTestCharts('#main-right-min-max', undefined, undefined, -50, 50);
            makeTestCharts('#main-right-min2', undefined, undefined, 'dataMin');
            makeTestCharts('#main-right-max2', undefined, undefined, undefined, 'dataMax');
            makeTestCharts('#main-right-min-max2', undefined, undefined, 'dataMin', 'dataMax');

            // Different split numbers
            for (let i = 0; i < 15; i++) {
                const splitNumber = i + 2;
                const dom = document.createElement('div');
                dom.className = 'chart';
                const option = makeOption(undefined, undefined, undefined, undefined, splitNumber);
                document.querySelector('#main-split-number').appendChild(dom);
                const chart = echarts.init(dom);
                chart.setOption(option);
            }
        });
        </script>


    </body>
</html>