mirror of
https://github.com/chartjs/Chart.js.git
synced 2024-10-07 20:59:08 +02:00
115 lines
2.3 KiB
Markdown
115 lines
2.3 KiB
Markdown
# Pie
|
|
|
|
```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 newDataset = {
|
|
label: 'Dataset ' + (data.datasets.length + 1),
|
|
backgroundColor: [],
|
|
data: [],
|
|
};
|
|
|
|
for (let i = 0; i < data.labels.length; i++) {
|
|
newDataset.data.push(Utils.numbers({count: 1, min: 0, max: 100}));
|
|
|
|
const colorIndex = i % Object.keys(Utils.CHART_COLORS).length;
|
|
newDataset.backgroundColor.push(Object.values(Utils.CHART_COLORS)[colorIndex]);
|
|
}
|
|
|
|
chart.data.datasets.push(newDataset);
|
|
chart.update();
|
|
}
|
|
},
|
|
{
|
|
name: 'Add Data',
|
|
handler(chart) {
|
|
const data = chart.data;
|
|
if (data.datasets.length > 0) {
|
|
data.labels.push('data #' + (data.labels.length + 1));
|
|
|
|
for (let 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 = 5;
|
|
const NUMBER_CFG = {count: DATA_COUNT, min: 0, max: 100};
|
|
|
|
const data = {
|
|
labels: ['Red', 'Orange', 'Yellow', 'Green', 'Blue'],
|
|
datasets: [
|
|
{
|
|
label: 'Dataset 1',
|
|
data: Utils.numbers(NUMBER_CFG),
|
|
backgroundColor: Object.values(Utils.CHART_COLORS),
|
|
}
|
|
]
|
|
};
|
|
// </block:setup>
|
|
|
|
// <block:config:0>
|
|
const config = {
|
|
type: 'pie',
|
|
data: data,
|
|
options: {
|
|
responsive: true,
|
|
plugins: {
|
|
legend: {
|
|
position: 'top',
|
|
},
|
|
title: {
|
|
display: true,
|
|
text: 'Chart.js Pie Chart'
|
|
}
|
|
}
|
|
},
|
|
};
|
|
// </block:config>
|
|
|
|
module.exports = {
|
|
actions: actions,
|
|
config: config,
|
|
};
|
|
```
|
|
## Docs
|
|
* [Doughnut and Pie Charts](../../charts/doughnut.html)
|