>>> from moving import *
>>> import numpy as np

>>> Interval().empty()
True
>>> Interval(0,1).empty()
False
>>> Interval(0,1)
[0, 1]
>>> Interval(0,1).length()
1.0
>>> Interval(23.2,24.9).length()
1.6999999999999993
>>> Interval(10,8).length()
0.0

>>> TimeInterval(0,1).length()
2.0
>>> TimeInterval(10,8).length()
0.0

>>> [i for i in TimeInterval(9,13)]
[9, 10, 11, 12, 13]

>>> TimeInterval(2,5).equal(TimeInterval(2,5))
True
>>> TimeInterval(2,5).equal(TimeInterval(2,4))
False
>>> TimeInterval(2,5).equal(TimeInterval(5,2))
False

>>> TimeInterval(3,6).distance(TimeInterval(4,6))
0
>>> TimeInterval(3,6).distance(TimeInterval(6,10))
0
>>> TimeInterval(3,6).distance(TimeInterval(8,10))
2
>>> TimeInterval(20,30).distance(TimeInterval(3,15))
5
>>> Interval.union([TimeInterval(3,6), TimeInterval(8,10),TimeInterval(11,15)])
[3,15]

>>> Point(3,4)-Point(1,7)
(2.000000,-3.000000)

>>> Point(3,2).norm2Squared()
13

>>> Point.distanceNorm2(Point(3,4),Point(1,7))
3.605551275463989

>>> Point(3,2).inPolygon([Point(0,0),Point(1,0),Point(1,1),Point(0,1)])
False
>>> Point(3,2).inPolygon([Point(0,0),Point(4,0),Point(4,3),Point(0,3)])
True

>>> segmentIntersection(Point(0,0),Point(1,1), Point(0,1), Point(1,2))
>>> segmentIntersection(Point(0,1),Point(1,0), Point(0,2), Point(2,1))
>>> segmentIntersection(Point(0,0),Point(2,0), Point(1,-1),Point(1,1))
(1.000000,0.000000)
>>> segmentIntersection(Point(0,1),Point(2,0),Point(1,1),Point(1,2))

>>> Trajectory().length()
0
>>> t1 = Trajectory([[0.5,1.5,2.5],[0.5,3.5,6.5]])
>>> t1.length() == 3.
True
>>> t1[1]
(1.500000,3.500000)
>>> t1.getTrajectoryInPolygon(np.array([[0,0],[4,0],[4,3],[0,3]]))
(0.500000,0.500000)
>>> t1.getTrajectoryInPolygon(np.array([[10,10],[14,10],[14,13],[10,13]])).length()
0