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// Not possible
calcTraj = MAP( {
expressions = [[ ’ SpatialLength ( Trajectory ( tempSpatialPoint , PredictionTimes ) ) ’ , ’traj ’]],
keepinput = true
} , predTime )

// Possible
calcTraj = MAP( {
expressions = [[ ’ Trajectory ( tempSpatialPoint , PredictionTimes ) ’ , ’ traj ’]],
keepinput = true
} , predTime )

MAP({
expressions = [[’SpatialLength(traj)’,’len’]],
keepinput = true
} , calcTraj )

Operators

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As a user, you can use the normal operators as you would without using temporal attributes. Nevertheless, the operators behave a little different. Their behavior with the temporal feature is explained in the following. Additionally, you need to define the PredictionTime, which is done with the PredictionTime operator. Additionally, you need to create some temporal attributes, which is also explained in the following.

PredictionTime

Text

Temporalization

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Map

Text

Select

Text

Join

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