1 Definition
Position and Orientation of an Object in a Virtual Environment excluding velocity and acceleration.
2 Functional Requirements
The static subset of Spatial Attitude excluding velocity and acceleration.
3 Syntax
https://schemas.mpai.community/OSD/V1.1/data/PointOfView.json
4 Semantics
Table 1 provides the semantics of the components of Point of View. The following should be noted:
- Each of Position, Velocity, and Acceleration is provided either in Cartesian (X,Y,Z) or Spherical (r,φ,θ) Coordinates.
- The Euler angles are indicated by (α,β,γ).
Table 1 – Semantics of Point of View
Header | N1 Bytes | Point of View Header |
– Standard-Point of View | 9 Bytes | The characters “OSD-OPV-V” |
– Version | N2 Bytes | Major version – 1 or 2 characters |
– Dot-separator | 1 Byte | The character “.” |
– Subversion | N3 Bytes | Minor version – 1 or 2 characters |
PointOfViewID | N4 Bytes | Identifier of Object Point of View. |
General | N5 Bytes | Set of general data. |
– CoordType | N6 Bytes | One of Cartesian, Spherical, Geodesic, Toroidal. |
– ObjectType | N7 Bytes | One of Digital Human, Generic. |
– MediaType | N8 Bytes | One of Speech, Audio, Visual, Audio-Visual, Haptic, Smell, RADAR, LiDAR, Ultrasound. |
– Precision | N9 Bytes | One of single precision, double precision |
PositionAndOrientation | ||
– CartPosition (X,Y,Z) | 12/24 Bytes | Array (in metres) |
– SpherPosition (r,φ,θ) | 12/24 Bytes | Array (in metres and degrees) |
– Orient (α,β,γ) | 12/24 Bytes | Array (in degrees) |
Errors | ||
– ErrCartPosition | N10 Bytes | Error of CartPosition |
– ErrSpherPosition | N11 Bytes | Error of SpherPosition |
– ErrOrientation | N12 Bytes | Error of Orientation |
DescrMetadata | N13 Bytes | Descriptive Metadata |