Mercator ↔ Equal Earth
Simon Willison used GPT-6 Astra (medium) in ChatGPT Work to build an animated D3 transition between Mercator and Equal Earth map projections.
Willison built an animated transition between the Mercator and Equal Earth map projections using D3. The tool was generated by GPT-6 Astra (medium) in ChatGPT Work. Equal Earth is a projection recently voted on at the UN. The post is a vibe-coding demonstration rather than a security or major model event.
- Built with GPT-6 Astra (medium) in ChatGPT Work
- Animated D3 transition between Mercator and Equal Earth
- Equal Earth projection was recently voted on at the UN
- Vendors
- OpenAI
- AI models
- GPT-6 Astra
From the original article
Tool: Mercator ↔ Equal Earth I got curious about the Equal Earth map projection that was recently voted on at the UN so I had GPT-6 Astra (medium) in ChatGPT Work build me this animated transition between Mercator and Equal Earth using D3. Tags: geospatial , d3 , vibe-coding , gpt-6-astra
simonwillison.net
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