echarts/test/bar-stack-time.html at 9d88b0a874224b3f6b4afa85661d7d5fcd7048e6 · apache/echarts · GitHub

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<!DOCTYPE html>
<!--
Licensed to the Apache Software Foundation (ASF) under one
or more contributor license agreements.  See the NOTICE file
distributed with this work for additional information
regarding copyright ownership.  The ASF licenses this file
to you under the Apache License, Version 2.0 (the
"License"); you may not use this file except in compliance
with the License.  You may obtain a copy of the License at

   http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing,
software distributed under the License is distributed on an
"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
KIND, either express or implied.  See the License for the
specific language governing permissions and limitations
under the License.
-->

<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/testHelper.js"></script>
    <link rel="stylesheet" href="lib/reset.css">
</head>
<body>
    <div id="main0"></div>
    <div id="main1"></div>
    <div id="main2"></div>
    <div id="main3"></div>
    <div id="main4"></div>

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

            // Test 1: Basic time axis stacking with different order
            testHelper.create(echarts, 'main0', {
                title: 'Time axis stacking - different order (B reversed)',
                option: {
                    tooltip: { trigger: 'axis' },
                    legend: {},
                    xAxis: { type: 'time' },
                    yAxis: { type: 'value' },
                    series: [
                        {
                            name: 'A',
                            type: 'bar',
                            data: [['2025-01-01', 4], ['2025-02-01', 8]],
                            stack: 'stack1'
                        },
                        {
                            name: 'B',
                            type: 'bar',
                            data: [['2025-02-01', 3], ['2025-01-01', 9]],
                            stack: 'stack1'
                        }
                    ]
                }
            });

            // Test 2: Null value in first series
            testHelper.create(echarts, 'main1', {
                title: 'Null value in first series (A Jan = null)',
                option: {
                    tooltip: { trigger: 'axis' },
                    legend: {},
                    xAxis: { type: 'time' },
                    yAxis: { type: 'value' },
                    series: [
                        {
                            name: 'A',
                            type: 'bar',
                            data: [['2025-01-01', null], ['2025-02-01', 8]],
                            stack: 'stack1'
                        },
                        {
                            name: 'B',
                            type: 'bar',
                            data: [['2025-01-01', 5], ['2025-02-01', 3]],
                            stack: 'stack1'
                        }
                    ]
                }
            });

            // Test 3: Sparse data with gaps
            testHelper.create(echarts, 'main2', {
                title: 'Sparse data - A missing Feb',
                option: {
                    tooltip: { trigger: 'axis' },
                    legend: {},
                    xAxis: { type: 'time' },
                    yAxis: { type: 'value' },
                    series: [
                        {
                            name: 'A',
                            type: 'bar',
                            data: [['2025-01-01', 10], ['2025-03-01', 30]],
                            stack: 'stack1'
                        },
                        {
                            name: 'B',
                            type: 'bar',
                            data: [['2025-01-01', 1], ['2025-02-01', 2], ['2025-03-01', 3]],
                            stack: 'stack1'
                        }
                    ]
                }
            });

            // Test 4: Mixed null values across multiple series
            testHelper.create(echarts, 'main3', {
                title: 'Mixed null values - 3 series',
                option: {
                    tooltip: { trigger: 'axis' },
                    legend: {},
                    xAxis: { type: 'time' },
                    yAxis: { type: 'value' },
                    series: [
                        {
                            name: 'A',
                            type: 'bar',
                            data: [['2025-01-01', null], ['2025-02-01', 10], ['2025-03-01', 20]],
                            stack: 'stack1'
                        },
                        {
                            name: 'B',
                            type: 'bar',
                            data: [['2025-01-01', 5], ['2025-02-01', null], ['2025-03-01', 15]],
                            stack: 'stack1'
                        },
                        {
                            name: 'C',
                            type: 'bar',
                            data: [['2025-01-01', 3], ['2025-02-01', 7], ['2025-03-01', null]],
                            stack: 'stack1'
                        }
                    ]
                }
            });

            // Test 5: Many datapoints in reverse order
            var seriesDataA = [];
            var seriesDataB = [];
            for (var i = 0; i < 20; i++) {
                var date = new Date(2025, 0, i + 1);
                var dateStr = date.toISOString().split('T')[0];
                seriesDataA.push([dateStr, i + 1]);
            }
            for (var i = 19; i >= 0; i--) {
                var date = new Date(2025, 0, i + 1);
                var dateStr = date.toISOString().split('T')[0];
                seriesDataB.push([dateStr, (i + 1) * 2]);
            }

            testHelper.create(echarts, 'main4', {
                title: 'Many datapoints - B in reverse order',
                option: {
                    tooltip: { trigger: 'axis' },
                    legend: {},
                    xAxis: { type: 'time' },
                    yAxis: { type: 'value' },
                    series: [
                        { name: 'A', type: 'bar', data: seriesDataA, stack: 'stack1' },
                        { name: 'B', type: 'bar', data: seriesDataB, stack: 'stack1' }
                    ]
                }
            });

        });
    </script>
</body>
</html>