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Use the term "user coordinate system" instead of "local coordinate system" #519
Description
Chapter 8 was recently edited to rely on the term "local coordinate system" instead of "user coordinate system".
Since all other chapters are relying on the term "user" rather than "local" in the context of coordinate systems and units, I would propose to revert this change for the sake of consistency. Also note the term "user" is baked into some DOM interfaces (userSpaceOnUse) which would be hard to change.
Activity
svgeesus commentedon Aug 20, 2018
The term
local coordinate systemis also used elsewhere. For example in the definition of getBBoxIf the two terms are being used synonymously then I agree only one should be used, consistently; but it is not yet clear to me that they are being used to mean the exact same thing.
jarek-foksa commentedon Aug 20, 2018
CSS Transforms spec (which is referenced by SVG 2) defines
user coordinate systemas an alias forlocal coordinate system:svgeesus commentedon Sep 22, 2018
Since these are defined to be synonyms, and since
useris baked into attribute value and DOM interfaces, it seems we should replace all occurrences of local coordinate system with user coordinate systemAgenda+ to get a quick agreement check before making the edits.
css-meeting-bot commentedon Sep 24, 2018
The SVG Working Group just discussed
Use the term "user coordinate system" instead of "local coordinate system".The full IRC log of that discussion
<AmeliaBR> Topic: Use the term "user coordinate system" instead of "local coordinate system"<AmeliaBR> github: https://github.com//issues/519
<AmeliaBR> Amelia: Some confusing wording that affects many places.
<AmeliaBR> Chris: As the original poster notes, CSS Transforms defines these terms as synonymous. So it should come down to a find and replace.
<AmeliaBR> Amelia: Agree we should standardize on the phrase used in standard definitions.
<AmeliaBR> Tav: Are the terms clearly defined?
<AmeliaBR> Chris: yes, in CSS Transforms, which we reference.
<AmeliaBR> Tav: we also might want to include the definition, so that it can be understood without following links.
<AmeliaBR> Amelia: One area of possible confusion will be patterns & clipPath & so on, where you need to clearly distinguish userSpaceOnUse coordinates versus internal coordinates. Need to check that wording still makes sense after replacing.
<AmeliaBR> Chris: I'll try to handle this, though probably not before republishing this week.
Fix #519 local vs. user coord system
519 kill local coords (#552)