opengeospatial / ogcapi-movingfeatures

OGC API - Moving Features
https://ogcapi.ogc.org/movingfeatures/
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Past, Current, Predicted trajectories #25

Open jerstlouis opened 1 year ago

jerstlouis commented 1 year ago

I am wondering how OGC API - Moving Features can enable streaming the current position of a moving object, as well as its past actual trajectory and predicted future trajectory. Am I correct in understanding (from the overview page), that the relevant resource would be:

GET /collections/{collectionId}/items/{mFeatureId}/tgeometries

Retrieve the movement data of the single moving feature with id mFeatureId.

Is there a mechanism (e.g., a property) that could be used to distinguish between actual historic temporal geometry/properties, current geometry/properties, and predicted geometry/properties?

As a related use case, consider the following ISS tracking positions (not including orientation, but i this case it is easy to deduct the orientation based on the direction of movement):

{
    "sat": 25544,
    "tRef": 1674280079,
    "orbitData": [
        { "t": 1674280020, "ln": 143.511, "lt": 17.213, "h": 419, "v": 7.662, "s": true },
        { "t": 1674280080, "ln": 145.941, "lt": 20.143, "h": 419, "v": 7.662, "s": true }
    ]
}

(from https://www.astroviewer.net/iss/ws/orbit.php?sat=25544)