Qualitative Trajectory Calculus c



The API can be found here.


[1]Van de Weghe, N.; Cohn, A.; De Tre ́, B.; and De Maeyer, P. 2005. A Qualitative Trajectory Calculus as a basis for representing moving objects in Geographical Information Systems. Control and Cybernetics 35(1):97–120.
[2]Delafontaine, M.; Cohn, A. G.; and Van de Weghe, N. 2011. Implementing a qualitative calculus to analyse moving point objects. Expert Systems with Applications 38(5):5187–5196.