Simplified Maemo Location Ontology (SLO): Tracker Ontology Reference Manual

Simplified Maemo Location Ontology (SLO)

Simplified Maemo Location Ontology (SLO) — Ontology for locations and landmarks

@prefix slo: <http://tracker.api.gnome.org/ontology/v3/slo#>

A place in the space, can be defined by coordinates or text

This class emits notifications about changes, and can be monitored using TrackerNotifier.

    nie:InformationElement 
        slo:GeoLocation 
        ╰── slo:Route

Name	Type	Description
`altitude`	double	Altitude following WGS 84 reference
`boundingLatitudeMax`	double	Northern latitude of the bounding box
`boundingLatitudeMin`	double	Southern latitude of the bounding box
`boundingLongitudeMax`	double	Eastern longitude of the bounding box
`boundingLongitudeMin`	double	Western longitude of the bounding box
`horizontalAccuracy`	double	Represents the error estimate of horizontal (earths-surface) accuracy in meters.
`latitude`	double	Positive values for the north hemisphere, negative for the south
`longitude`	double	Positive to the East of the Greenwich meridian, negative to the West (following WGS-84)
`postalAddress`	PostalAddress	Representation of the location as text address
`radius`	double	Radius from the center to define an area. Some applications can use it in 2D sense, making then a circle instead of a sphere
`timestamp`	dateTime	Timestamp when the geolocation is referenced. Create subproperties for certain use cases
`verticalAccuracy`	double	Represents the error estimate of vertical (earths-surface) accuracy in meters.

Use the nie title, description, ... properties

This class emits notifications about changes, and can be monitored using TrackerNotifier.

    nie:InformationElement 
        slo:Landmark

Name	Type	Description
`belongsToCategory`	LandmarkCategory	Relation of a landmark with a landmark category
`hasContact`	Contact	The contact information of the landmark in question
`iconUrl`	Resource	Url of the icon that corresponds to this landmark.

Predefined set of instances for categories of landmarks

This class emits notifications about changes, and can be monitored using TrackerNotifier.

    nie:InformationElement 
        slo:LandmarkCategory

Name	Type	Notes	Description
`categoryIconUrl`	Resource		Url of the icon that corresponds to this category.
`isRemovable`	boolean		Flag to indicate if this instance is removable. This restriction is not enforced by tracker; it is API responsability to honor the value

    nie:InformationElement 
        slo:GeoLocation 
        ╰── slo:Route

Name	Type	Description
`endTime`	dateTime
`routeDetails`	string	FIXME Domain can be resource if we handle map-files correctly in the ontology
`startTime`	dateTime

Properties this ontology defines which can describe nie:InformationElement resources.

Name	Type	Notes	Description
`location`	GeoLocation		This can be subclassed to add semantics

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