3D Rotations

Degrees of Freedom

๐Ÿค” 3D ์ƒ์—์„œ rotation์„ ์ •์˜ ํ•˜๋ ค๋ฉด ๋ช‡๊ฐœ์˜ ์ˆซ์ž๊ฐ€ ํ•„์š”ํ• ๊นŒ?

โœ… ์œ„๋„์™€ ๊ฒฝ๋„๋งŒ ์ด์šฉํ•ด์„œ ํ•œ ์ ์—์„œ ํ•œ ์ ์œผ๋กœ ๊ฐˆ ์ˆœ ์žˆ์ง€๋งŒ, ํ•ด๋‹น rotation์€ uniqueํ•˜์ง€ ์•Š๋‹ค. ๋•Œ๋ฌธ์— sao palulo๋ฅผ fixํ•ด์•ผ ํ•˜๊ธฐ ๋•Œ๋ฌธ์— 3 degree of freedom์ด๋‹ค!

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Commutativity

Representing Rotations

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Euler Angles

Quaternions and 3d rotation, explained interactively

๐Ÿ˜Ÿ Gimbal Lock

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Complex Analysis

Quaternions

๐Ÿค” 3D rotation์„ 3๊ฐœ์˜ component๋กœ ํ‘œํ˜„ํ•  ์ˆ˜ ์—†๋‹ค!

โœ… ๊ทธ๋Ÿผ 4๊ฐœ๋กœ ์ง„ํ–‰์‹œ์ผœ (..?)

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