Author: Alastair Otter
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Report: World Athletics Championships 2023 in numbers
The 19th World Athletics Championships will be held in Budapest, Hungary from 19-27 August. Download our latest report for at look at the data behind the biennial event.
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Working with Open Street Map vector data in QGIS
When we teach data journalism most people are eager to make a map but they’re usually unsure of where to get data for a map. And while there are many good sources for map data, if you’re looking for something, like a particular town or neighbourhood, that’s not always so easy. One solution is to…
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Facebook stays a crowd favourite, while TikTok overtakes Instagram
South Africa’s social media scene: Facebook dominates, TikTok thrives and Threads takes on Twitter
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Botswana to sell more of its own diamonds under new deal with De Beers
Half of the world’s diamonds come from Africa, but Botswana, the continent’s top producer, didn’t own much of what it mined, until now.
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How to extract multiple features from a shapefile in QGIS
This guide will help you find and extract features from a larger map into a smaller one. In this example, selected rivers in South Africa are copied into a new GeoJSON format file.
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10 steps to create a custom Svelte component library
Although creating complex sites with multiple components in SvelteKit is pretty simple already, creating a library for your most regularly used components adds even more power to your projects.
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Loading non-essential data behind the scenes in Svelte
Streaming promises makes it simple to fetch data without having the page wait for non-essential data requests to complete before starting to render.
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Remove features from a map with QGIS
There are two small research islands more than 2,000km off the coast of South Africa. When mapping SA data, you generally don’t want to include them. Luckily, it is simple enough to remove the islands in QGIS.
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Creating a grid overlay for a map using QGIS
There are a number of reasons you may want to make a grid of points covering a geographic area. In my case, I wanted to work out which point in South Africa was the furthest from a police station.
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Automating data downloads from a Google spreadsheet
Downloading data from a Google Sheets is usually as easy as clicking file->Download->CSV. But sometimes you need to automate the download. Here’s how.