>>> from events import *
>>> from moving import MovingObject, TimeInterval, Point
>>> from prediction import ConstantPredictionParameters

>>> objects = [MovingObject(num = i, timeInterval = TimeInterval(0,10)) for i in range(10)]
>>> interactions = createInteractions(objects)
>>> len([i for i in interactions if len(i.roadUserNumbers) == 1])
0
>>> objects2 = [MovingObject(num = i, timeInterval = TimeInterval(0,10)) for i in range(100, 110)]
>>> interactions = createInteractions(objects, objects2)
>>> len([i for i in interactions if len(i.roadUserNumbers) == 1])
0

>>> o1 = MovingObject.generate(1, Point(-5.,0.), Point(1.,0.), TimeInterval(0,10))
>>> o2 = MovingObject.generate(2, Point(0.,-5.), Point(0.,1.), TimeInterval(0,10))
>>> inter = Interaction(roadUser1 = o1, roadUser2 = o2)
>>> inter.computeIndicators()
>>> predictionParams = ConstantPredictionParameters(10.)
>>> inter.computeCrossingsCollisions(predictionParams, 0.1, 10)
>>> ttc = inter.getIndicator("Time to Collision")
>>> ttc[0]
5.0
>>> ttc[1]
4.0
>>> (inter.collisionPoints[0][0] - Point(0.,0.)).norm2() < 0.0001
True
>>> (inter.collisionPoints[4][0] - Point(0.,0.)).norm2() < 0.0001
True
>>> inter.getIndicator(Interaction.indicatorNames[1])[4] < 0.000001 # collision angle
True
>>> inter.getIndicator(Interaction.indicatorNames[1])[5] is None
True
>>> inter.getIndicator(Interaction.indicatorNames[1])[6] # doctest:+ELLIPSIS
3.1415...