Trajectory analytics

[sunng87]

What problem does the new feature solve?

Provide analytic functions for trajectory data. These functions will provide information like speed, estimated location, acceleration, and time at location. We may also introduce a internal logical data structure called trajectory, which includes a linestring and timestamp at each point.

What does the feature do?

1. Provide internal logical data structure: trajectory
2. Provide analytical functions:
   • startTime
   • endTime
   • duration
   • timeAtPoint
   • pointAtTime
   • velocityAtTime
   • accelarationAtTime
   • timeToDistance
   • timeAtDistance
   • cumulativeDistanceAtTime
   • timeAtCumulativeDistance

Implementation challenges

No response