| Definition | Functional Requirements | Syntax | Semantics | Conformance Testing | Performance Assessment |
1 Definition
An Item represented by a series of Scene Descriptors for a certain duration (from a start Time to an end Time).
2 Functional Requirements
An Event Descriptors instance must include:
- The Event Descriptors Header
- The ID of the Event Descriptors.
- The IDs or the Scene Descriptors of the Scene Descriptors included in the Event instance.
An Event Descriptors instance may include:
- The ID of a Virtual Space (M-Instance) to which it refers.
- The ID of a U-Environment to which it refers.
- The Space-Time information of the Event instance.
- Information about this Event instance.
- Descriptive Metadata.
3 Syntax
https://schemas.mpai.community/OSD/V1.5/data/EventDescriptors.json
4 Semantics
|
Label |
Description |
|
Header |
Event Descriptors Header – Standard “OSD-LED-Vx.y” |
|
MInstanceID |
Identifier of the M-Instance. |
|
UEnvironment |
Identifier of the U-Environment. |
|
3DModelEventDescriptorsID |
ID of this Event Descriptors instance. |
|
3DModelEventDescriptorsTime |
Space and Time of Event Descriptors. |
|
3DModelEventDescriptorsSpaceTime |
Space and Time of Event Descriptors. |
|
3DModelSceneDescriptors[] |
Set of Scene Descriptors in the Event. |
|
– 3DModelSceneObjectSpaceTime |
A set of Scene Descriptors of the Event. |
|
DataXMData |
Information on this Event Descriptors instance. |
|
DescrMetadata |
Descriptive Metadata |
5 Conformance Testing
A Data instance Conforms with Event Descriptors (OSD-EVD) if:
- The Data validates against the Event Descriptors’ JSON Schema.
- All Data in the Event Descriptors’ JSON Schema
- Have the specified type
- Validate against their JSON Schemas
- Conform with their Data Qualifiers if present.