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2.1 KiB
2.1 KiB
Point Style
This sample shows how to use the dataset point style in the tooltip instead of a rectangle to identify each dataset.
// <block:actions:2>
const actions = [
{
name: 'Toggle Tooltip Point Style',
handler(chart) {
chart.options.plugins.tooltip.usePointStyle = !chart.options.plugins.tooltip.usePointStyle;
chart.update();
}
},
];
// </block:actions>
// <block:setup:1>
const DATA_COUNT = 7;
const NUMBER_CFG = {count: DATA_COUNT, min: -100, max: 100};
const data = {
labels: Utils.months({count: DATA_COUNT}),
datasets: [
{
label: 'Triangles',
data: Utils.numbers(NUMBER_CFG),
fill: false,
borderColor: Utils.CHART_COLORS.red,
backgroundColor: Utils.transparentize(Utils.CHART_COLORS.red, 0.5),
pointStyle: 'triangle',
pointRadius: 6,
},
{
label: 'Circles',
data: Utils.numbers(NUMBER_CFG),
fill: false,
borderColor: Utils.CHART_COLORS.blue,
backgroundColor: Utils.transparentize(Utils.CHART_COLORS.blue, 0.5),
pointStyle: 'circle',
pointRadius: 6,
},
{
label: 'Stars',
data: Utils.numbers(NUMBER_CFG),
fill: false,
borderColor: Utils.CHART_COLORS.green,
backgroundColor: Utils.transparentize(Utils.CHART_COLORS.green, 0.5),
pointStyle: 'star',
pointRadius: 6,
}
]
};
// </block:setup>
// <block:config:0>
const config = {
type: 'line',
data: data,
options: {
interaction: {
mode: 'index',
},
plugins: {
title: {
display: true,
text: (ctx) => 'Tooltip point style: ' + ctx.chart.options.plugins.tooltip.usePointStyle,
},
tooltip: {
usePointStyle: true,
}
}
}
};
// </block:config>
module.exports = {
actions: actions,
config: config,
};
Docs
- Data structures (
labels
) - Line
- Tooltip
usePointStyle
- Elements