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June 17, 2022 02:33
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Bar Label Rotation - Apache ECharts Demo
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| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="utf-8"> | |
| <title>Bar Label Rotation - Apache ECharts Demo</title> | |
| </head> | |
| <body> | |
| <div id="chart-container"></div> | |
| <script src="https://fastly.jsdelivr.net/npm/[email protected]/dist/echarts.min.js"></script> | |
| </body> | |
| </html> |
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| var dom = document.getElementById('chart-container'); | |
| var myChart = echarts.init(dom, null, { | |
| renderer: 'canvas', | |
| useDirtyRect: false | |
| }); | |
| var app = {}; | |
| var option; | |
| const posList = [ | |
| 'left', | |
| 'right', | |
| 'top', | |
| 'bottom', | |
| 'inside', | |
| 'insideTop', | |
| 'insideLeft', | |
| 'insideRight', | |
| 'insideBottom', | |
| 'insideTopLeft', | |
| 'insideTopRight', | |
| 'insideBottomLeft', | |
| 'insideBottomRight' | |
| ]; | |
| app.configParameters = { | |
| rotate: { | |
| min: -90, | |
| max: 90 | |
| }, | |
| align: { | |
| options: { | |
| left: 'left', | |
| center: 'center', | |
| right: 'right' | |
| } | |
| }, | |
| verticalAlign: { | |
| options: { | |
| top: 'top', | |
| middle: 'middle', | |
| bottom: 'bottom' | |
| } | |
| }, | |
| position: { | |
| options: posList.reduce(function (map, pos) { | |
| map[pos] = pos; | |
| return map; | |
| }, {}) | |
| }, | |
| distance: { | |
| min: 0, | |
| max: 100 | |
| } | |
| }; | |
| app.config = { | |
| rotate: 90, | |
| align: 'left', | |
| verticalAlign: 'middle', | |
| position: 'insideBottom', | |
| distance: 15, | |
| onChange: function () { | |
| const labelOption = { | |
| rotate: app.config.rotate, | |
| align: app.config.align, | |
| verticalAlign: app.config.verticalAlign, | |
| position: app.config.position, | |
| distance: app.config.distance | |
| }; | |
| myChart.setOption({ | |
| series: [ | |
| { | |
| label: labelOption | |
| }, | |
| { | |
| label: labelOption | |
| }, | |
| { | |
| label: labelOption | |
| }, | |
| { | |
| label: labelOption | |
| } | |
| ] | |
| }); | |
| } | |
| }; | |
| const labelOption = { | |
| show: true, | |
| position: app.config.position, | |
| distance: app.config.distance, | |
| align: app.config.align, | |
| verticalAlign: app.config.verticalAlign, | |
| rotate: app.config.rotate, | |
| formatter: '{c} {name|{a}}', | |
| fontSize: 16, | |
| rich: { | |
| name: {} | |
| } | |
| }; | |
| option = { | |
| tooltip: { | |
| trigger: 'axis', | |
| axisPointer: { | |
| type: 'shadow' | |
| } | |
| }, | |
| legend: { | |
| data: ['Forest', 'Steppe', 'Desert', 'Wetland'] | |
| }, | |
| toolbox: { | |
| show: true, | |
| orient: 'vertical', | |
| left: 'right', | |
| top: 'center', | |
| feature: { | |
| mark: { show: true }, | |
| dataView: { show: true, readOnly: false }, | |
| magicType: { show: true, type: ['line', 'bar', 'stack'] }, | |
| restore: { show: true }, | |
| saveAsImage: { show: true } | |
| } | |
| }, | |
| xAxis: [ | |
| { | |
| type: 'category', | |
| axisTick: { show: false }, | |
| data: ['2012', '2013', '2014', '2015', '2016'] | |
| } | |
| ], | |
| yAxis: [ | |
| { | |
| type: 'value' | |
| } | |
| ], | |
| series: [ | |
| { | |
| name: 'Forest', | |
| type: 'bar', | |
| barGap: 0, | |
| label: labelOption, | |
| emphasis: { | |
| focus: 'series' | |
| }, | |
| data: [320, 332, 301, 334, 390] | |
| }, | |
| { | |
| name: 'Steppe', | |
| type: 'bar', | |
| label: labelOption, | |
| emphasis: { | |
| focus: 'series' | |
| }, | |
| data: [220, 182, 191, 234, 290] | |
| }, | |
| { | |
| name: 'Desert', | |
| type: 'bar', | |
| label: labelOption, | |
| emphasis: { | |
| focus: 'series' | |
| }, | |
| data: [150, 232, 201, 154, 190] | |
| }, | |
| { | |
| name: 'Wetland', | |
| type: 'bar', | |
| label: labelOption, | |
| emphasis: { | |
| focus: 'series' | |
| }, | |
| data: [98, 77, 101, 99, 40] | |
| } | |
| ] | |
| }; | |
| if (option && typeof option === 'object') { | |
| myChart.setOption(option); | |
| } | |
| window.addEventListener('resize', myChart.resize); |
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| * { | |
| margin: 0; | |
| padding: 0; | |
| } | |
| #chart-container { | |
| position: relative; | |
| height: 100vh; | |
| overflow: hidden; | |
| } |
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