A data visualisation for the South African elections as a Svelte component. It accepts data as a JSON property from the IEC's NPE Seat Calculation Results API and renders a hemicycle chart.
See the hemicycle with South African national elections data here
npm install svelte-hemicycle<script>
import Hemicycle from 'svelte-hemicycle';
const data = [
{
"id": 1,
"text": "UDFMP",
"count": 160,
"color": "#FF0000"
},
{
"id": 2,
"text": "PDMF",
"count": 150,
"color": "#00FF00"
},
{
"id": 3,
"text": "DA",
"count": 40,
"color": "#0000FF"
},
{
"id": 4,
"text": "PDP",
"count": 30,
"color": "#FFFF00"
},
{
"id": 5,
"text": "APC",
"count": 20,
"color": "#00FFFF"
}
]
const total_seats = 400;
const rows= 12;
</script>
<Hemicycle {data} {total_seats} {rows} />The data to display on the hemicycle. This is an array of objects, each representing a party or group of seats.
Required.
data = [{
"id": 1, // Unique identifier
"text": "UDFMP (60 seats)", // Text to display on the hemicycle
"count": 60, // Number of seats
"color": "#FF0000" // Colour of the hemicycle segment
}]The total number of seats in the legislature. This can be greater than the total number of seats in the data.
Required.
total_seats = 400;The radius of the hemicycle.
Default: 300
r = 300;The number of rows of seats to display.
Default: 12
rows = 12;The size of the dots representing seats.
Default: 5
The angle of the hemicycle, in degrees.
Default: 180 Minimum: 10 Maximum: 360
The padding between the hemicycle and the edge of the SVG.
padding = 30;
padding = [30, 30]; // top, bottom
padding = [30, 30, 30, 30]; // top, right, bottom, leftThe colour of the text and optional markings.
Default: "white"
The font size of the text.
Default: 12
The position of the text.
Defaults to center.
text_position = {
x: 0,
y: 0
}An array of strings representing what to display on the hemicycle.
Defaults to ["points", "text"]
"points" - Display the dots of seats "text" - Display the text on mouseover and click "arc" - Display the arcs of the hemicycle "numbers" - Display the seats in order "voronoi" - Display the voronoi diagram "referencePoints" - Display some reference points
display = ["points", "text"]; // Default
display = ["points", "text", "arc", "numbers", "voronoi", "referencePoints"]; // AllMIT
Copyright 2024 Jason Norwood-Young
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
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