CALayer
E849986
CALayer is a fundamental Core Animation class that represents a drawable, animatable backing store for visual content in iOS and macOS user interfaces.
All labels observed (1)
| Label | Occurrences |
|---|---|
| CALayer canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T10214243 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: CALayer Context triple: [Core Animation, primaryAbstraction, CALayer]
-
A.
Core Animation
Core Animation is Apple’s high-performance graphics rendering and animation framework used to create smooth, hardware-accelerated visual effects in macOS, iOS, and other Apple platforms.
-
B.
Quartz 2D
Quartz 2D is Apple’s modern 2D graphics rendering and drawing engine used in macOS and iOS for high-quality, resolution-independent graphics.
-
C.
SceneKit
SceneKit is a high-level 3D graphics framework from Apple used to build and render interactive 3D scenes and animations across its platforms.
-
D.
AVFoundation
AVFoundation is Apple’s comprehensive framework for working with time-based audiovisual media, providing APIs for capturing, editing, processing, and playing audio and video across its platforms.
-
E.
Core Video
Core Video is a macOS multimedia framework that provides efficient, low-latency video processing and display services for applications.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: CALayer Target entity description: CALayer is a fundamental Core Animation class that represents a drawable, animatable backing store for visual content in iOS and macOS user interfaces.
-
A.
Core Animation
Core Animation is Apple’s high-performance graphics rendering and animation framework used to create smooth, hardware-accelerated visual effects in macOS, iOS, and other Apple platforms.
-
B.
Quartz 2D
Quartz 2D is Apple’s modern 2D graphics rendering and drawing engine used in macOS and iOS for high-quality, resolution-independent graphics.
-
C.
SceneKit
SceneKit is a high-level 3D graphics framework from Apple used to build and render interactive 3D scenes and animations across its platforms.
-
D.
AVFoundation
AVFoundation is Apple’s comprehensive framework for working with time-based audiovisual media, providing APIs for capturing, editing, processing, and playing audio and video across its platforms.
-
E.
Core Video
Core Video is a macOS multimedia framework that provides efficient, low-latency video processing and display services for applications.
- F. None of above. chosen
Statements (52)
| Predicate | Object |
|---|---|
| instanceOf |
Core Animation class
ⓘ
Objective-C class ⓘ animatable backing store ⓘ drawable backing store ⓘ |
| associatedWith |
NSView
ⓘ
UIView ⓘ |
| canContain | hierarchy of sublayers ⓘ |
| conformsTo | CAMediaTiming ⓘ |
| framework |
Core Animation
ⓘ
QuartzCore ⓘ
linked to:
Core Animation
|
| hasProperty |
anchorPoint
ⓘ
backgroundColor ⓘ borderColor ⓘ borderWidth ⓘ bounds ⓘ contents ⓘ contentsGravity ⓘ cornerRadius ⓘ delegate ⓘ masksToBounds ⓘ needsDisplayOnBoundsChange ⓘ opacity ⓘ position ⓘ shadowColor ⓘ shadowOffset ⓘ shadowOpacity ⓘ shadowRadius ⓘ sublayerTransform ⓘ sublayers ⓘ transform ⓘ |
| headerFile | QuartzCore/CALayer.h ⓘ |
| introducedBy | Apple Inc. ⓘ |
| languageBinding |
Objective-C
ⓘ
Swift ⓘ |
| platform |
iOS
ⓘ
macOS ⓘ tvOS ⓘ watchOS ⓘ |
| relationship |
is backing layer for NSView when layer-backed on macOS
ⓘ
is backing layer for UIView on iOS ⓘ |
| renderingEngine |
Core Animation compositor
ⓘ
linked to:
Core Animation
|
| supports |
3D transforms via CATransform3D
ⓘ
explicit CAAnimation objects ⓘ hit testing ⓘ implicit animations for animatable properties ⓘ rasterization ⓘ |
| usedFor |
compositing visual elements
ⓘ
explicit animations ⓘ implicit animations ⓘ offscreen drawing ⓘ rendering visual content ⓘ view backing store ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: CALayer Description of subject: CALayer is a fundamental Core Animation class that represents a drawable, animatable backing store for visual content in iOS and macOS user interfaces.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.