- From: Raphael Kubo da Costa via GitHub <sysbot+gh@w3.org>
- Date: Wed, 02 Dec 2020 14:19:51 +0000
- To: public-geolocation@w3.org
rakuco has just submitted a new pull request for https://github.com/w3c/deviceorientation: == Add a note explaining how the coordinate system differs from the CSS one. == The Device Orientation spec uses a right-handed system with Y being positive upwards, while the CSS coordinate system uses a left-handed system with Y being positive downwards. Additionally, DOMMatrixReadOnly.rotate() and its DOMMatrix.rotateSelf() counterpart both apply rotations in a Z-Y'-X'' order that differs from the Z-X'-Y'' order here and can also lead to confusion and wrong rotations. Chromium's own DevTools code for overriding Device Orientation values has had multiple issues with this over the years, the latest one being https://crbug.com/1137281, so it is probably a good idea to make it more explicit to others. See https://github.com/w3c/deviceorientation/pull/92 -- Sent via github-notify-ml as configured in https://github.com/w3c/github-notify-ml-config
Received on Wednesday, 2 December 2020 14:19:53 UTC