Simon Willison’s Weblog

gefingerpoken. Michal Migurski shows how to implement the algorithm for two-finger deforming drag using affine transformation matrices in Flash.

Posted 24th September 2007 at 8:50 am

Recent articles

OpenAI DevDay 2025 live blog - 6th October 2025
Embracing the parallel coding agent lifestyle - 5th October 2025
Designing agentic loops - 30th September 2025

affinetransformations 1 algorithm 2 flash 69 matrices 1 michal-migurski 15 multitouch 2

Monthly briefing

Sponsor me for $10/month and get a curated email digest of the month's most important LLM developments.

Pay me to send you less!

Sponsor & subscribe