Trajic is an algorithm for compressing GPS trajectory data. For a more in-depth academic explanation of how Trajic works, be sure to read the research paper I wrote with Dr Zhen He.
This project contains a reference implementation of Trajic along with implementations of various other GPS trajectory compression schemes which were used for benchmarks and experiments.
makeThe default make task just builds the trajic binary.
make allThe all task runs tests and produces both the trajic and stats binaries
(the latter of which is used for running experiments).
Experiments also require
Compress a trajectory losslessly:
trajic c traj.plt
Compress a trajectory with max errors of 0.1 s temporally and 0.001 degrees spatially:
trajic c traj.plt 0.1 0.001
Decompress a trajectory:
trajic d traj.tjc
- @ref PredictiveCompressor
- @ref ibstream
- @ref obstream
- @ref GPSPoint