Files
cc-backend/web/frontend/src/generic/plots/Pie.svelte
2025-07-02 18:43:25 +02:00

99 lines
2.1 KiB
Svelte

<!--
@component Pie Plot based on chart.js Pie
Properties:
- `canvasId String?`: Unique ID for correct parallel chart.js rendering [Default: "pie-default"]
- `size Number`: X and Y size of the plot, for square shape
- `sliceLabel String`: Label used in segment legends
- `quantities [Number]`: Data values
- `entities [String]`: Data identifiers
- `displayLegend?`: Display uPlot legend [Default: false]
Exported:
- `colors ['rgb(x,y,z)', ...]`: Color range used for segments; upstream used for legend
-->
<script module>
// http://tsitsul.in/blog/coloropt/ : 12 colors normal
export const colors = [
'rgb(235,172,35)',
'rgb(184,0,88)',
'rgb(0,140,249)',
'rgb(0,110,0)',
'rgb(0,187,173)',
'rgb(209,99,230)',
'rgb(178,69,2)',
'rgb(255,146,135)',
'rgb(89,84,214)',
'rgb(0,198,248)',
'rgb(135,133,0)',
'rgb(0,167,108)',
'rgb(189,189,189)'
];
</script>
<script>
/* Ignore Double Script Section Error in IDE */
import Chart from 'chart.js/auto';
import { onMount } from 'svelte';
/* Svelte 5 Props */
let {
canvasId = "pie-default",
size,
sliceLabel,
quantities,
entities,
displayLegend = false,
} = $props();
/* Const Init */
const data = {
labels: entities,
datasets: [
{
label: sliceLabel,
data: quantities,
fill: 1,
backgroundColor: colors.slice(0, quantities.length)
}
]
};
const options = {
maintainAspectRatio: false,
animation: false,
plugins: {
legend: {
display: displayLegend
}
}
};
/* On Mount */
onMount(() => {
new Chart(
document.getElementById(canvasId),
{
type: 'pie',
data: data,
options: options
}
);
});
</script>
<!-- <div style="width: 500px;"><canvas id="dimensions"></canvas></div><br/> -->
<div class="chart-container" style="--container-width: {size}; --container-height: {size}">
<canvas id={canvasId}></canvas>
</div>
<style>
.chart-container {
position: relative;
margin: auto;
height: var(--container-height);
width: var(--container-width);
}
</style>