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Add ability to stack different dataset types (#8797)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,120 @@ | ||
| # Stacked bar/line | ||
|
|
||
| ```js chart-editor | ||
| // <block:actions:2> | ||
| const actions = [ | ||
| { | ||
| name: 'Randomize', | ||
| handler(chart) { | ||
| chart.data.datasets.forEach(dataset => { | ||
| dataset.data = Utils.numbers({count: chart.data.labels.length, min: 0, max: 100}); | ||
| }); | ||
| chart.update(); | ||
| } | ||
| }, | ||
| { | ||
| name: 'Add Dataset', | ||
| handler(chart) { | ||
| const data = chart.data; | ||
| const dsColor = Utils.namedColor(chart.data.datasets.length); | ||
| const newDataset = { | ||
| label: 'Dataset ' + (data.datasets.length + 1), | ||
| backgroundColor: Utils.transparentize(dsColor, 0.5), | ||
| borderColor: dsColor, | ||
| borderWidth: 1, | ||
| stack: 'combined', | ||
| data: Utils.numbers({count: data.labels.length, min: 0, max: 100}), | ||
| }; | ||
| chart.data.datasets.push(newDataset); | ||
| chart.update(); | ||
| } | ||
| }, | ||
| { | ||
| name: 'Add Data', | ||
| handler(chart) { | ||
| const data = chart.data; | ||
| if (data.datasets.length > 0) { | ||
| data.labels = Utils.months({count: data.labels.length + 1}); | ||
|
|
||
| for (var index = 0; index < data.datasets.length; ++index) { | ||
| data.datasets[index].data.push(Utils.rand(0, 100)); | ||
| } | ||
|
|
||
| chart.update(); | ||
| } | ||
| } | ||
| }, | ||
| { | ||
| name: 'Remove Dataset', | ||
| handler(chart) { | ||
| chart.data.datasets.pop(); | ||
| chart.update(); | ||
| } | ||
| }, | ||
| { | ||
| name: 'Remove Data', | ||
| handler(chart) { | ||
| chart.data.labels.splice(-1, 1); // remove the label first | ||
|
|
||
| chart.data.datasets.forEach(dataset => { | ||
| dataset.data.pop(); | ||
| }); | ||
|
|
||
| chart.update(); | ||
| } | ||
| } | ||
| ]; | ||
| // </block:actions> | ||
|
|
||
| // <block:setup:1> | ||
| const DATA_COUNT = 7; | ||
| const NUMBER_CFG = {count: DATA_COUNT, min: 0, max: 100}; | ||
|
|
||
| const labels = Utils.months({count: 7}); | ||
| const data = { | ||
| labels: labels, | ||
| datasets: [ | ||
| { | ||
| label: 'Dataset 1', | ||
| data: Utils.numbers(NUMBER_CFG), | ||
| borderColor: Utils.CHART_COLORS.red, | ||
| backgroundColor: Utils.transparentize(Utils.CHART_COLORS.red, 0.5), | ||
| stack: 'combined', | ||
| type: 'bar' | ||
| }, | ||
| { | ||
| label: 'Dataset 2', | ||
| data: Utils.numbers(NUMBER_CFG), | ||
| borderColor: Utils.CHART_COLORS.blue, | ||
| backgroundColor: Utils.transparentize(Utils.CHART_COLORS.blue, 0.5), | ||
| stack: 'combined' | ||
| } | ||
| ] | ||
| }; | ||
| // </block:setup> | ||
|
|
||
| // <block:config:0> | ||
| const config = { | ||
| type: 'line', | ||
| data: data, | ||
| options: { | ||
| plugins: { | ||
| title: { | ||
| display: true, | ||
| text: 'Chart.js Stacked Line/Bar Chart' | ||
| } | ||
| }, | ||
| scales: { | ||
| y: { | ||
| stacked: true | ||
| } | ||
| } | ||
| }, | ||
| }; | ||
| // </block:config> | ||
|
|
||
| module.exports = { | ||
| actions: actions, | ||
| config: config, | ||
| }; | ||
| ``` |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,40 @@ | ||
| module.exports = { | ||
| config: { | ||
| data: { | ||
| datasets: [ | ||
| { | ||
| type: 'bar', | ||
| stack: 'mixed', | ||
| data: [5, 20, 1, 10], | ||
| backgroundColor: '#00ff00', | ||
| borderColor: '#ff0000' | ||
| }, | ||
| { | ||
| type: 'line', | ||
| stack: 'mixed', | ||
| data: [6, 16, 3, 19], | ||
| borderColor: '#0000ff', | ||
| fill: false | ||
| }, | ||
| ] | ||
| }, | ||
| options: { | ||
| scales: { | ||
| x: { | ||
| axis: 'y', | ||
| labels: ['a', 'b', 'c', 'd'] | ||
| }, | ||
| y: { | ||
| stacked: true | ||
| } | ||
| } | ||
| } | ||
| }, | ||
| options: { | ||
| spriteText: true, | ||
| canvas: { | ||
| height: 256, | ||
| width: 512 | ||
| } | ||
| } | ||
| }; |
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