API Reference

Time Types

class mobilitydb.time.Period(lower, upper=None, lower_inc=None, upper_inc=None)

Class for representing sets of contiguous timestamps between a lower and an upper bound. The bounds may be inclusive or not.

Period objects can be created with a single argument of type string as in MobilityDB.

>>> Period('(2019-09-08 00:00:00+01, 2019-09-10 00:00:00+01)')

Another possibility is to give a tuple of arguments as follows:

  • lower and upper are instances of str or datetime specifying the bounds,
  • lower_inc and upper_inc are instances of bool specifying whether the bounds are inclusive or not. By default, lower_inc is True and upper_inc is False.

Some examples are given next.

>>> Period('2019-09-08 00:00:00+01', '2019-09-10 00:00:00+01')
>>> Period('2019-09-08 00:00:00+01', '2019-09-10 00:00:00+01', False, True)
>>> Period(parse('2019-09-08 00:00:00+01'), parse('2019-09-10 00:00:00+01'))
>>> Period(parse('2019-09-08 00:00:00+01'), parse('2019-09-10 00:00:00+01'), False, True)
lower

Lower bound

upper

Upper bound

lower_inc

Is the lower bound inclusive?

upper_inc

Is the upper bound inclusive?

duration

Time interval on which the period is defined

shift(timedelta)

Shift the period by a time interval

overlap(other)

Do the periods share a timestamp?

contains_timestamp(datetime)

Does the period contain the timestamp?

class mobilitydb.time.TimestampSet(*argv)

Class for representing lists of distinct timestamp values.

TimestampSet objects can be created with a single argument of type string as in MobilityDB.

>>> TimestampSet('{2019-09-08 00:00:00+01, 2019-09-10 00:00:00+01, 2019-09-11 00:00:00+01}')

Another possibility is to give a tuple or list of composing timestamps, which can be instances of str or datetime. The composing timestamps must be given in increasing order.

>>> TimestampSet(['2019-09-08 00:00:00+01', '2019-09-10 00:00:00+01', '2019-09-11 00:00:00+01'])
>>> TimestampSet([parse('2019-09-08 00:00:00+01'), parse('2019-09-10 00:00:00+01'), parse('2019-09-11 00:00:00+01')])
>>> TimestampSet('2019-09-08 00:00:00+01', '2019-09-10 00:00:00+01', '2019-09-11 00:00:00+01')
>>> TimestampSet(parse('2019-09-08 00:00:00+01'), parse('2019-09-10 00:00:00+01'), parse('2019-09-11 00:00:00+01'))
timespan

Interval on which the timestamp set is defined ignoring the potential time gaps

period

Period on which the timestamp set is defined ignoring the potential time gaps

numTimestamps

Number of timestamps

startTimestamp

Start timestamp

endTimestamp

End timestamp

timestampN(n)

N-th timestamp

timestamps

Distinct timestamps

shift(timedelta)

Shift the timestamp set by a time interval

class mobilitydb.time.PeriodSet(*argv)

Class for representing lists of disjoint periods.

PeriodSet objects can be created with a single argument of type string as in MobilityDB.

>>> PeriodSet('{[2019-09-08 00:00:00+01, 2019-09-10 00:00:00+01], [2019-09-11 00:00:00+01, 2019-09-12 00:00:00+01]}')

Another possibility is to give a list or tuple specifying the composing periods, which can be instances of str or Period. The composing periods must be given in increasing order.

>>> PeriodSet(['[2019-09-08 00:00:00+01, 2019-09-10 00:00:00+01]', '[2019-09-11 00:00:00+01, 2019-09-12 00:00:00+01]'])
>>> PeriodSet([Period('[2019-09-08 00:00:00+01, 2019-09-10 00:00:00+01]'), Period('[2019-09-11 00:00:00+01, 2019-09-12 00:00:00+01]')])
>>> PeriodSet('[2019-09-08 00:00:00+01, 2019-09-10 00:00:00+01]', '[2019-09-11 00:00:00+01, 2019-09-12 00:00:00+01]')
>>> PeriodSet(Period('[2019-09-08 00:00:00+01, 2019-09-10 00:00:00+01]'), Period('[2019-09-11 00:00:00+01, 2019-09-12 00:00:00+01]'))
duration

Time interval on which the period set is defined

timespan

Time interval on which the period set is defined

period

Period on which the period set is defined ignoring the potential time gaps

numTimestamps

Number of distinct timestamps

startTimestamp

Start timestamp

endTimestamp

End timestamp

timestampN(n)

N-th distinct timestamp

timestamps

Distinct timestamps

numPeriods

Number of periods

startPeriod

Start period

endPeriod

End period

periodN(n)

N-th period

periods

Periods

shift(timedelta)

Shift the period set by a time interval

Temporal Types

class mobilitydb.temporal.Temporal

Bases: object

Abstract class for representing temporal values of any subtype.

BaseClass = None

Class of the base type, for example, float for TFloat

BaseClassDiscrete = None

Boolean value that states whether the base type is discrete or not, for example, True for int and False for float

ComponentClass = None

Class of the components, for example,

  1. TFloatInst for both TFloatI and TFloatSeq
  2. TFloatSeq for TFloatS.
classmethod tempSubtype()

Subtype of the temporal value, that is, one of 'Instant', 'InstantSet', 'Sequence', or 'SequenceSet'.

getValues

List of distinct values taken by the temporal value.

startValue

Start value.

endValue

End value.

minValue

Minimum value.

maxValue

Maximum value.

valueAtTimestamp(timestamp)

Value at timestamp.

getTime

Period set on which the temporal value is defined.

duration

Interval on which the temporal value is defined.

timespan

Interval on which the temporal value is defined ignoring potential time gaps.

period

Period on which the temporal value is defined ignoring potential time gaps.

numInstants

Number of distinct instants.

startInstant

Start instant.

endInstant

End instant.

instantN(n)

N-th instant.

instants

List of instants.

numTimestamps

Number of distinct timestamps.

startTimestamp

Start timestamp.

endTimestamp

End timestamp.

timestampN(n)

N-th timestamp.

timestamps

List of timestamps.

shift(timedelta)

Shift the temporal value by a time interval

intersectsTimestamp(datetime)

Does the temporal value intersect the timestamp?

intersectsTimestampSet(timestampset)

Does the temporal value intersect the timestamp set?

intersectsPeriod(period)

Does the temporal value intersect the period?

intersectsPeriodSet(periodset)

Does the temporal value intersect the period set?

class mobilitydb.temporal.TemporalInstants

Bases: mobilitydb.temporal.temporal.Temporal

Abstract class for representing temporal values of instant set or sequence subtype.

getValues

List of distinct values taken by the temporal value.

startValue

Start value.

endValue

End value.

minValue

Minimum value.

maxValue

Maximum value.

numInstants

Number of instants.

startInstant

Start instant.

endInstant

End instant.

instantN(n)

N-th instant.

instants

List of instants.

numTimestamps

Number of timestamps.

startTimestamp

Start timestamp.

endTimestamp

End timestamp.

timestampN(n)

N-th timestamp.

timestamps

List of timestamps.

shift(timedelta)

Shift the temporal value by a time interval.

class mobilitydb.temporal.TInstant(value, time=None)

Bases: mobilitydb.temporal.temporal.Temporal

Abstract class for representing temporal values of instant subtype.

classmethod tempSubtype()

Subtype of the temporal value, that is, 'Instant'.

getValue

Value component.

getValues

List of distinct values.

startValue

Start value.

endValue

End value.

minValue

Minimum value.

maxValue

Maximum value.

valueAtTimestamp(timestamp)

Value at timestamp.

getTimestamp

Timestamp.

getTime

Period set on which the temporal value is defined.

duration

Interval on which the temporal value is defined. It is zero for temporal values of instant subtype.

timespan

Interval on which the temporal value is defined ignoring the potential time gaps. It is zero for temporal values of instant subtype.

period

Period on which the temporal value is defined ignoring the potential time gaps.

numInstants

Number of instants.

startInstant

Start instant.

endInstant

End instant.

instantN(n)

N-th instant.

instants

List of instants.

numTimestamps

Number of timestamps.

startTimestamp

Start timestamp.

endTimestamp

End timestamp.

timestampN(n)

N-th timestamp

timestamps

List of timestamps.

shift(timedelta)

Shift the temporal value by a time interval.

intersectsTimestamp(timestamp)

Does the temporal value intersect the timestamp?

intersectsPeriod(period)

Does the temporal value intersect the period?

class mobilitydb.temporal.TInstantSet(*argv)

Bases: mobilitydb.temporal.temporalinstants.TemporalInstants

Abstract class for representing temporal values of instant set subtype.

classmethod tempSubtype()

Subtype of the temporal value, that is, 'InstantSet'.

valueAtTimestamp(timestamp)

Value at timestamp.

getTime

Period set on which the temporal value is defined.

duration

Interval on which the temporal value is defined. It is zero for temporal values of instant set subtype.

timespan

Interval on which the temporal value is defined ignoring the potential time gaps.

period

Period on which the temporal value is defined ignoring the potential time gaps.

intersectsTimestamp(timestamp)

Does the temporal value intersect the timestamp?

intersectsPeriod(period)

Does the temporal value intersect the period?

class mobilitydb.temporal.TSequence(instantList, lower_inc=None, upper_inc=None, interp=None)

Bases: mobilitydb.temporal.temporalinstants.TemporalInstants

Abstract class for representing temporal values of sequence subtype.

classmethod tempSubtype()

Subtype of the temporal value, that is, 'Sequence'.

lower_inc

Is the lower bound inclusive?

upper_inc

Is the upper bound inclusive?

valueAtTimestamp(timestamp)

Value at timestamp.

getTime

Period set on which the temporal value is defined.

duration

Interval on which the temporal value is defined.

timespan

Interval on which the temporal value is defined.

period

Period on which the temporal value is defined.

numSequences

Number of sequences.

startSequence

Start sequence.

endSequence

End sequence.

sequenceN(n)

N-th sequence.

sequences

List of sequences.

intersectsTimestamp(timestamp)

Does the temporal value intersect the timestamp?

intersectsPeriod(period)

Does the temporal value intersect the period?

class mobilitydb.temporal.TSequenceSet(sequenceList, interp=None)

Bases: mobilitydb.temporal.temporal.Temporal

Abstract class for representing temporal values of sequence set subtype.

classmethod tempSubtype()

Subtype of the temporal value, that is, 'SequenceSet'.

getValues

List of distinct values taken by the temporal value.

startValue

Start value.

endValue

End value.

minValue

Minimum value.

maxValue

Maximum value.

valueAtTimestamp(timestamp)

Value at timestamp.

getTime

Period set on which the temporal value is defined.

duration

Interval on which the period set is defined.

timespan

Interval on which the period set is defined ignoring the potential time gaps.

period

Period on which the temporal value is defined ignoring the potential time gaps.

numInstants

Number of distinct instants.

startInstant

Start instant.

endInstant

End instant.

instantN(n)

N-th distinct instant.

instants

List of instants.

numTimestamps

Number of distinct timestamps.

startTimestamp

Start timestamp.

endTimestamp

End timestamp.

timestampN(n)

N-th distinct timestamp.

timestamps

List of timestamps.

numSequences

Number of sequences.

startSequence

Start sequence.

endSequence

End sequence.

sequenceN(n)

N-th sequence.

sequences

List of sequences.

shift(timedelta)

Shift the temporal value by a time interval.

intersectsTimestamp(timestamp)

Does the temporal value intersect the timestamp?

intersectsPeriod(period)

Does the temporal value intersect the period?

Box Types

class mobilitydb.boxes.TBox(xmin, tmin=None, xmax=None, tmax=None)

Bases: object

Class for representing bounding boxes with value (X) and/or time (T) dimensions.

TBox objects can be created with a single argument of type string as in MobilityDB.

>>> TBox("TBOX((1.0, 2000-01-01), (2.0, 2000-01-02))")
>>> TBox("TBOX((1.0,), (2.0,))")
>>> TBox("TBOX((, 2000-01-01), (, 2000-01-02))")

Another possibility is to give the bounds in the following order: xmin, tmin, xmax, tmax, where the bounds can be instances of str, float or datetime. All arguments are optional but they must be given in pairs for each dimension and at least one pair must be given.

>>> TBox("1.0", "2000-01-01", "2.0", "2000-01-02")
>>> TBox(1.0, 2.0)
>>> TBox(parse("2000-01-01"), parse("2000-01-02"))
xmin

Minimum X

tmin

Minimum T

xmax

Maximum X

tmax

Maximum T

class mobilitydb.boxes.STBox(bounds, dimt=None, geodetic=None, srid=None)

Bases: object

Class for representing bounding boxes composed of coordinate and/or time dimensions, where the coordinates may be in 2D (X and Y) or in 3D (X, Y, and Z). For each dimension, minimum and maximum values are stored. The coordinates may be either Cartesian (planar) or geodetic (spherical). Additionally, the SRID of coordinates can be specified.

STBox objects can be created with a single argument of type string as in MobilityDB.

>>> "STBOX ((1.0, 2.0), (1.0, 2.0))",
>>> "STBOX Z((1.0, 2.0, 3.0), (1.0, 2.0, 3.0))",
>>> "STBOX T((1.0, 2.0, 2001-01-03 00:00:00+01), (1.0, 2.0, 2001-01-03 00:00:00+01))",
>>> "STBOX ZT((1.0, 2.0, 3.0, 2001-01-04 00:00:00+01), (1.0, 2.0, 3.0, 2001-01-04 00:00:00+01))",
>>> "STBOX T(, 2001-01-03 00:00:00+01), (, 2001-01-03 00:00:00+01))",
>>> "GEODSTBOX((1.0, 2.0, 3.0), (1.0, 2.0, 3.0))",
>>> "GEODSTBOX T((1.0, 2.0, 3.0, 2001-01-03 00:00:00+01), (1.0, 2.0, 3.0, 2001-01-04 00:00:00+01))",
>>> "GEODSTBOX T((, 2001-01-03 00:00:00+01), (, 2001-01-03 00:00:00+01))",
>>> "SRID=5676;STBOX T((1.0, 2.0, 2001-01-04), (1.0, 2.0, 2001-01-04))",
>>> "SRID=4326;GEODSTBOX((1.0, 2.0, 3.0), (1.0, 2.0, 3.0))",

Another possibility is to give the bounds in the following order: xmin, ymin, zmin, tmin, xmax, ymax, zmax, tmax, where the bounds can be instances of str, float and datetime. All arguments are optional but they must be given in pairs for each dimension and at least one pair must be given. When three pairs are given, by default, the third pair will be interpreted as representing the Z dimension unless the dimt parameter is given. Finally, the geodetic parameter determines whether the coordinates in the bounds are planar or spherical.

>>> STBox((1.0, 2.0, 1.0, 2.0))
>>> STBox((1.0, 2.0, 3.0, 1.0, 2.0, 3.0))
>>> STBox((1.0, 2.0, '2001-01-03', 1.0, 2.0, '2001-01-03'), dimt=True)
>>> STBox((1.0, 2.0, 3.0, '2001-01-04', 1.0, 2.0, 3.0, '2001-01-04'))
>>> STBox(('2001-01-03', '2001-01-03'))
>>> STBox((1.0, 2.0, 3.0, 1.0, 2.0, 3.0), geodetic=True)
>>> STBox((1.0, 2.0, 3.0, '2001-01-04', 1.0, 2.0, 3.0, '2001-01-03'), geodetic=True)
>>> STBox((1.0, 2.0, 3.0, '2001-01-04', 1.0, 2.0, 3.0, '2001-01-03'), geodetic=True, srid=4326)
>>> STBox(('2001-01-03', '2001-01-03'), geodetic=True)
xmin

Minimum X

ymin

Minimum Y

zmin

Minimum Z

tmin

Minimum T

xmax

Maximum X

ymax

Maximum Y

zmax

Maximum Z

tmax

Maximum T

geodetic

Is the box is geodetic?

srid

SRID of the geographic coordinates

Main Types

class mobilitydb.main.TBool

Bases: mobilitydb.temporal.temporal.Temporal

Abstract class for representing temporal Booleans of any subtype.

BaseClass

alias of builtins.bool

class mobilitydb.main.TBoolInst(value, time=None)

Bases: mobilitydb.temporal.tinstant.TInstant, mobilitydb.main.tbool.TBool

Class for representing temporal Booleans of instant subtype.

TBoolInst objects can be created with a single argument of type string as in MobilityDB.

>>> TBoolInst('true@2019-09-01')

Another possibility is to give the value and the time arguments, which can be instances of str, bool, or datetime.

>>> TBoolInst('True', '2019-09-08 00:00:00+01')
>>> TBoolInst(['True', '2019-09-08 00:00:00+01'])
>>> TBoolInst(True, parse('2019-09-08 00:00:00+01'))
>>> TBoolInst([True, parse('2019-09-08 00:00:00+01')])
class mobilitydb.main.TBoolInstSet(*argv)

Bases: mobilitydb.temporal.tinstantset.TInstantSet, mobilitydb.main.tbool.TBool

Class for representing temporal Booleans of instant set subtype.

TBoolInstSet objects can be created with a single argument of type string as in MobilityDB.

>>> TBoolInstSet('AA@2019-09-01')

Another possibility is to give a tuple or list of arguments, which can be instances of str or TBoolInst.

>>> TBoolInstSet('AA@2019-09-01 00:00:00+01', 'BB@2019-09-02 00:00:00+01', 'AA@2019-09-03 00:00:00+01')
>>> TBoolInstSet(TBoolInst('AA@2019-09-01 00:00:00+01'), TBoolInst('BB@2019-09-02 00:00:00+01'), TBoolInst('AA@2019-09-03 00:00:00+01'))
>>> TBoolInstSet(['AA@2019-09-01 00:00:00+01', 'BB@2019-09-02 00:00:00+01', 'AA@2019-09-03 00:00:00+01'])
>>> TBoolInstSet([TBoolInst('AA@2019-09-01 00:00:00+01'), TBoolInst('BB@2019-09-02 00:00:00+01'), TBoolInst('AA@2019-09-03 00:00:00+01')])
ComponentClass

alias of TBoolInst

class mobilitydb.main.TBoolSeq(instantList, lower_inc=None, upper_inc=None)

Bases: mobilitydb.temporal.tsequence.TSequence, mobilitydb.main.tbool.TBool

Class for representing temporal Booleans of sequence subtype.

TBoolSeq objects can be created with a single argument of type string as in MobilityDB.

>>> TBoolSeq('[true@2019-09-01 00:00:00+01, false@2019-09-02 00:00:00+01, true@2019-09-03 00:00:00+01]')

Another possibility is to give the arguments as follows.

  • instantList is the list of composing instants, which can be instances of str or TBoolInst,
  • lower_inc and upper_inc are instances of bool specifying whether the bounds are inclusive or not. By default lower_inc is True and upper_inc is False.

Some examples are given next.

>>> TBoolSeq(['true@2019-09-01 00:00:00+01', 'false@2019-09-02 00:00:00+01', 'true@2019-09-03 00:00:00+01'])
>>> TBoolSeq(TBoolInst('true@2019-09-01 00:00:00+01'), TBoolInst('false@2019-09-02 00:00:00+01'), TBoolInst('true@2019-09-03 00:00:00+01')])
>>> TBoolSeq(['true@2019-09-01 00:00:00+01', 'false@2019-09-02 00:00:00+01', 'true@2019-09-03 00:00:00+01'], True, True)
>>> TBoolSeq([TBoolInst('true@2019-09-01 00:00:00+01'), TBoolInst('false@2019-09-02 00:00:00+01'), TBoolInst('true@2019-09-03 00:00:00+01')], True, True)
ComponentClass

alias of TBoolInst

classmethod interpolation()

Interpolation of the temporal value, that is, 'Stepwise'.

class mobilitydb.main.TBoolSeqSet(sequenceList)

Bases: mobilitydb.temporal.tsequenceset.TSequenceSet, mobilitydb.main.tbool.TBool

Class for representing temporal Booleans of sequence set subtype.

TBoolSeqSet objects can be created with a single argument of type string as in MobilityDB.

>>> TBoolSeqSet('{[true@2019-09-01 00:00:00+01], [false@2019-09-02 00:00:00+01, true@2019-09-03 00:00:00+01]}')

Another possibility is to give the list of composing sequences, which can be instances of str or TBoolSeq.

>>> TBoolSeqSet(['[true@2019-09-01 00:00:00+01]', '[false@2019-09-02 00:00:00+01, true@2019-09-03 00:00:00+01]'])
>>> TBoolSeqSet([TBoolSeq('[true@2019-09-01 00:00:00+01]'), TBoolSeq('[false@2019-09-02 00:00:00+01, true@2019-09-03 00:00:00+01]')])
>>> TBoolSeqSet([TBoolSeq('[true@2019-09-01 00:00:00+01]'), TBoolSeq('[false@2019-09-02 00:00:00+01, true@2019-09-03 00:00:00+01]')])
ComponentClass

alias of TBoolSeq

classmethod interpolation()

Interpolation of the temporal value, that is, 'Stepwise'.

class mobilitydb.main.TInt

Bases: mobilitydb.temporal.temporal.Temporal

Abstract class for representing temporal integers of any subtype.

BaseClass

alias of builtins.int

valueRange

Range of values taken by the temporal value as defined by its minimum and maximum value

class mobilitydb.main.TIntInst(value, time=None)

Bases: mobilitydb.temporal.tinstant.TInstant, mobilitydb.main.tint.TInt

Class for representing temporal integers of instant subtype.

TIntInst objects can be created with a single argument of type string as in MobilityDB.

>>> TIntInst('10@2019-09-01')

Another possibility is to give the value and the time arguments, which can be instances of str, int or datetime.

>>> TIntInst('10', '2019-09-08 00:00:00+01')
>>> TIntInst(['10', '2019-09-08 00:00:00+01'])
>>> TIntInst(10, parse('2019-09-08 00:00:00+01'))
>>> TIntInst([10, parse('2019-09-08 00:00:00+01')])
class mobilitydb.main.TIntInstSet(*argv)

Bases: mobilitydb.temporal.tinstantset.TInstantSet, mobilitydb.main.tint.TInt

Class for representing temporal integers of instant set subtype.

TIntInstSet objects can be created with a single argument of type string as in MobilityDB.

>>> TIntInstSet('10@2019-09-01')

Another possibility is to give a tuple or list of composing instants, which can be instances of str or TIntInst.

>>> TIntInstSet('10@2019-09-01 00:00:00+01', '20@2019-09-02 00:00:00+01', '10@2019-09-03 00:00:00+01')
>>> TIntInstSet(TIntInst('10@2019-09-01 00:00:00+01'), TIntInst('20@2019-09-02 00:00:00+01'), TIntInst('10@2019-09-03 00:00:00+01'))
>>> TIntInstSet(['10@2019-09-01 00:00:00+01', '20@2019-09-02 00:00:00+01', '10@2019-09-03 00:00:00+01'])
>>> TIntInstSet([TIntInst('10@2019-09-01 00:00:00+01'), TIntInst('20@2019-09-02 00:00:00+01'), TIntInst('10@2019-09-03 00:00:00+01')])
ComponentClass

alias of TIntInst

class mobilitydb.main.TIntSeq(instantList, lower_inc=None, upper_inc=None)

Bases: mobilitydb.temporal.tsequence.TSequence, mobilitydb.main.tint.TInt

Class for representing temporal integers of sequence subtype.

TIntSeq objects can be created with a single argument of type string as in MobilityDB.

>>> TIntSeq('[10@2019-09-01 00:00:00+01, 20@2019-09-02 00:00:00+01, 10@2019-09-03 00:00:00+01]')

Another possibility is to give the arguments as follows:

  • instantList is the list of composing instants, which can be instances of str or TIntInst,
  • lower_inc and upper_inc are instances of bool specifying whether the bounds are inclusive or not. By default lower_inc is True and upper_inc is False.

Some examples are given next.

>>> TIntSeq(['10@2019-09-01 00:00:00+01', '20@2019-09-02 00:00:00+01', '10@2019-09-03 00:00:00+01'])
>>> TIntSeq([TIntInst('10@2019-09-01 00:00:00+01'), TIntInst('20@2019-09-02 00:00:00+01'), TIntInst('10@2019-09-03 00:00:00+01')])
>>> TIntSeq(['10@2019-09-01 00:00:00+01', '20@2019-09-02 00:00:00+01', '10@2019-09-03 00:00:00+01'], True, True)
>>> TIntSeq([TIntInst('10@2019-09-01 00:00:00+01'), TIntInst('20@2019-09-02 00:00:00+01'), TIntInst('10@2019-09-03 00:00:00+01')], True, True)
ComponentClass

alias of TIntInst

classmethod interpolation()

Interpolation of the temporal value, that is, 'Stepwise'.

class mobilitydb.main.TIntSeqSet(sequenceList)

Bases: mobilitydb.temporal.tsequenceset.TSequenceSet, mobilitydb.main.tint.TInt

Class for representing temporal integers of sequence subtype.

TIntSeqSet objects can be created with a single argument of type string as in MobilityDB.

>>> TIntSeqSet('{[10@2019-09-01 00:00:00+01], [20@2019-09-02 00:00:00+01, 10@2019-09-03 00:00:00+01]}')

Another possibility is to give the list of composing sequences, which can be instances of str or TIntSeq.

>>> TIntSeqSet(['[10@2019-09-01 00:00:00+01]', '[20@2019-09-02 00:00:00+01, 10@2019-09-03 00:00:00+01]'])
>>> TIntSeqSet([TIntSeq('[10@2019-09-01 00:00:00+01]'), TIntSeq('[20@2019-09-02 00:00:00+01, 10@2019-09-03 00:00:00+01]')])
>>> TIntSeqSet([TIntSeq('[10@2019-09-01 00:00:00+01]'), TIntSeq('[20@2019-09-02 00:00:00+01, 10@2019-09-03 00:00:00+01]')])
ComponentClass

alias of TIntSeq

classmethod interpolation()

Interpolation of the temporal value, that is, 'Stepwise'.

class mobilitydb.main.TFloat

Bases: mobilitydb.temporal.temporal.Temporal

Abstract class for representing temporal floats of any subtype.

BaseClass

alias of builtins.float

valueRange

Range of values taken by the temporal value as defined by its minimum and maximum value

class mobilitydb.main.TFloatInst(value, time=None)

Bases: mobilitydb.temporal.tinstant.TInstant, mobilitydb.main.tfloat.TFloat

Class for representing temporal floats of instant subtype.

TFloatInst objects can be created with a single argument of type string as in MobilityDB.

>>> TFloatInst('10.0@2019-09-01')

Another possibility is to give the value and the time arguments, which can be instances of str, float or datetime.

>>> TFloatInst('10.0', '2019-09-08 00:00:00+01')
>>> TFloatInst(['10.0', '2019-09-08 00:00:00+01'])
>>> TFloatInst(10.0, parse('2019-09-08 00:00:00+01'))
>>> TFloatInst([10.0, parse('2019-09-08 00:00:00+01')])
getValues

List of ranges representing the values taken by the temporal value

class mobilitydb.main.TFloatInstSet(*argv)

Bases: mobilitydb.temporal.tinstantset.TInstantSet, mobilitydb.main.tfloat.TFloat

Class for representing temporal floats of instant set subtype.

TFloatInstSet objects can be created with a single argument of type string as in MobilityDB.

>>> TFloatInstSet('10.0@2019-09-01')

Another possibility is to give a tuple or list of composing instants, which can be instances of str or TFloatInst.

>>> TFloatInstSet('10.0@2019-09-01 00:00:00+01', '20.0@2019-09-02 00:00:00+01', '10.0@2019-09-03 00:00:00+01')
>>> TFloatInstSet(TFloatInst('10.0@2019-09-01 00:00:00+01'), TFloatInst('20.0@2019-09-02 00:00:00+01'), TFloatInst('10.0@2019-09-03 00:00:00+01'))
>>> TFloatInstSet(['10.0@2019-09-01 00:00:00+01', '20.0@2019-09-02 00:00:00+01', '10.0@2019-09-03 00:00:00+01'])
>>> TFloatInstSet([TFloatInst('10.0@2019-09-01 00:00:00+01'), TFloatInst('20.0@2019-09-02 00:00:00+01'), TFloatInst('10.0@2019-09-03 00:00:00+01')])
ComponentClass

alias of TFloatInst

getValues

List of ranges representing the values taken by the temporal value.

class mobilitydb.main.TFloatSeq(instantList, lower_inc=None, upper_inc=None, interp=None)

Bases: mobilitydb.temporal.tsequence.TSequence, mobilitydb.main.tfloat.TFloat

Class for representing temporal floats of sequence subtype.

TFloatSeq objects can be created with a single argument of type string as in MobilityDB.

>>> TFloatSeq('[10.0@2019-09-01 00:00:00+01, 20.0@2019-09-02 00:00:00+01, 10.0@2019-09-03 00:00:00+01]')
>>> TFloatSeq('Interp=Stepwise;[10.0@2019-09-01 00:00:00+01, 20.0@2019-09-02 00:00:00+01, 10.0@2019-09-03 00:00:00+01]')

Another possibility is to give the arguments as follows:

  • instantList is the list of composing instants, which can be instances of str or TFloatInst,
  • lower_inc and upper_inc are instances of bool specifying whether the bounds are inclusive or not. By default lower_inc is True and upper_inc is False.
  • interp which is either 'Linear' or 'Stepwise', the former being the default.

Some examples are shown next.

>>> TFloatSeq(['10.0@2019-09-01 00:00:00+01', '20.0@2019-09-02 00:00:00+01', '10.0@2019-09-03 00:00:00+01'])
>>> TFloatSeq([TFloatInst('10.0@2019-09-01 00:00:00+01'), TFloatInst('20.0@2019-09-02 00:00:00+01'), TFloatInst('10.0@2019-09-03 00:00:00+01')])
>>> TFloatSeq(['10.0@2019-09-01 00:00:00+01', '20.0@2019-09-02 00:00:00+01', '10.0@2019-09-03 00:00:00+01'], True, True, 'Stepwise')
>>> TFloatSeq([TFloatInst('10.0@2019-09-01 00:00:00+01'), TFloatInst('20.0@2019-09-02 00:00:00+01'), TFloatInst('10.0@2019-09-03 00:00:00+01')], True, True, 'Stepwise')
ComponentClass

alias of TFloatInst

interpolation

Interpolation of the temporal value, which is either 'Linear' or 'Stepwise'.

getValues

List of ranges representing the values taken by the temporal value.

class mobilitydb.main.TFloatSeqSet(sequenceList, interp=None)

Bases: mobilitydb.temporal.tsequenceset.TSequenceSet, mobilitydb.main.tfloat.TFloat

Class for representing temporal floats of sequence subtype.

TFloatSeqSet objects can be created with a single argument of type string as in MobilityDB.

>>> TFloatSeqSet('{[10.0@2019-09-01 00:00:00+01], [20.0@2019-09-02 00:00:00+01, 10.0@2019-09-03 00:00:00+01]}')
>>> TFloatSeqSet('Interp=Stepwise;{[10.0@2019-09-01 00:00:00+01], [20.0@2019-09-02 00:00:00+01, 10.0@2019-09-03 00:00:00+01]}')

Another possibility is to give the arguments as follows:

  • sequenceList is a list of composing sequences, which can be instances of str or TFloatSeq,
  • interp can be 'Linear' or 'Stepwise', the former being the default.

Some examples are shown next.

>>> TFloatSeqSet(['[10.0@2019-09-01 00:00:00+01]', '[20.0@2019-09-02 00:00:00+01, 10.0@2019-09-03 00:00:00+01]'])
>>> TFloatSeqSet(['[10.0@2019-09-01 00:00:00+01]', '[20.0@2019-09-02 00:00:00+01, 10.0@2019-09-03 00:00:00+01]'], 'Linear')
>>> TFloatSeqSet(['Interp=Stepwise;[10.0@2019-09-01 00:00:00+01]', 'Interp=Stepwise;[20.0@2019-09-02 00:00:00+01, 10.0@2019-09-03 00:00:00+01]'], 'Stepwise')
>>> TFloatSeqSet([TFloatSeq('[10.0@2019-09-01 00:00:00+01]'), TFloatSeq('[20.0@2019-09-02 00:00:00+01, 10.0@2019-09-03 00:00:00+01]')])
>>> TFloatSeqSet([TFloatSeq('[10.0@2019-09-01 00:00:00+01]'),  TFloatSeq('[20.0@2019-09-02 00:00:00+01, 10.0@2019-09-03 00:00:00+01]')], 'Linear')
>>> TFloatSeqSet([TFloatSeq('Interp=Stepwise;[10.0@2019-09-01 00:00:00+01]'), TFloatSeq('Interp=Stepwise;[20.0@2019-09-02 00:00:00+01, 10.0@2019-09-03 00:00:00+01]')], 'Stepwise')
ComponentClass

alias of TFloatSeq

interpolation

Interpolation of the temporal value, which is either 'Linear' or 'Stepwise'.

getValues

List of ranges representing the values taken by the temporal value

class mobilitydb.main.TText

Bases: mobilitydb.temporal.temporal.Temporal

Abstract class for representing temporal strings of any subtype.

BaseClass

alias of builtins.str

class mobilitydb.main.TTextInst(value, time=None)

Bases: mobilitydb.temporal.tinstant.TInstant, mobilitydb.main.ttext.TText

Class for representing temporal strings of instant subtype.

TTextInst objects can be created with a single argument of type string as in MobilityDB.

>>> TTextInst('AA@2019-09-01')

Another possibility is to give the value and the time arguments, which can be instances of str or datetime.

>>> TTextInst('AA', '2019-09-08 00:00:00+01')
>>> TTextInst(['AA', '2019-09-08 00:00:00+01'])
>>> TTextInst('AA', parse('2019-09-08 00:00:00+01'))
>>> TTextInst(['AA', parse('2019-09-08 00:00:00+01')])
class mobilitydb.main.TTextInstSet(*argv)

Bases: mobilitydb.temporal.tinstantset.TInstantSet, mobilitydb.main.ttext.TText

Class for representing temporal strings of instant set subtype.

TTextInstSet objects can be created with a single argument of type string as in MobilityDB.

>>> TTextInstSet('AA@2019-09-01')

Another possibility is to give a tuple or list of composing instants, which can be instances of str or TTextInst.

>>> TTextInstSet('AA@2019-09-01 00:00:00+01', 'BB@2019-09-02 00:00:00+01', 'AA@2019-09-03 00:00:00+01')
>>> TTextInstSet(TTextInst('AA@2019-09-01 00:00:00+01'), TTextInst('BB@2019-09-02 00:00:00+01'), TTextInst('AA@2019-09-03 00:00:00+01'))
>>> TTextInstSet(['AA@2019-09-01 00:00:00+01', 'BB@2019-09-02 00:00:00+01', 'AA@2019-09-03 00:00:00+01'])
>>> TTextInstSet([TTextInst('AA@2019-09-01 00:00:00+01'), TTextInst('BB@2019-09-02 00:00:00+01'), TTextInst('AA@2019-09-03 00:00:00+01')])
ComponentClass

alias of TTextInst

class mobilitydb.main.TTextSeq(instantList, lower_inc=None, upper_inc=None)

Bases: mobilitydb.temporal.tsequence.TSequence, mobilitydb.main.ttext.TText

Class for representing temporal strings of sequence subtype.

TTextSeq objects can be created with a single argument of type string as in MobilityDB.

>>> TTextSeq('[AA@2019-09-01 00:00:00+01, BB@2019-09-02 00:00:00+01, AA@2019-09-03 00:00:00+01]')

Another possibility is to give the arguments as follows:

  • instantList is the list of composing instants, which can be instances of str or TTextInst,
  • lower_inc and upper_inc are instances of bool specifying whether the bounds are inclusive or not. By default lower_inc is True and upper_inc is False.

Some examples are given next.

>>> TTextSeq(['AA@2019-09-01 00:00:00+01', 'BB@2019-09-02 00:00:00+01', 'AA@2019-09-03 00:00:00+01'])
>>> TTextSeq(TTextInst('AA@2019-09-01 00:00:00+01'), TTextInst('BB@2019-09-02 00:00:00+01'), TTextInst('AA@2019-09-03 00:00:00+01')])
>>> TTextSeq(['AA@2019-09-01 00:00:00+01', 'BB@2019-09-02 00:00:00+01', 'AA@2019-09-03 00:00:00+01'], True, True)
>>> TTextSeq([TTextInst('AA@2019-09-01 00:00:00+01'), TTextInst('BB@2019-09-02 00:00:00+01'), TTextInst('AA@2019-09-03 00:00:00+01')], True, True)
ComponentClass

alias of TTextInst

classmethod interpolation()

Interpolation of the temporal value, that is, 'Stepwise'.

class mobilitydb.main.TTextSeqSet(sequenceList)

Bases: mobilitydb.temporal.tsequenceset.TSequenceSet, mobilitydb.main.ttext.TText

Class for representing temporal strings of sequence subtype.

TTextSeqSet objects can be created with a single argument of typestring as in MobilityDB.

>>> TTextSeqSet('{[AA@2019-09-01 00:00:00+01], [BB@2019-09-02 00:00:00+01, AA@2019-09-03 00:00:00+01]}')

Another possibility is to give the list of composing sequences, which can be instances of str or TTextSeq.

>>> TTextSeqSet(['[AA@2019-09-01 00:00:00+01]', '[BB@2019-09-02 00:00:00+01, AA@2019-09-03 00:00:00+01]'])
>>> TTextSeqSet([TTextSeq('[AA@2019-09-01 00:00:00+01]'), TTextSeq('[BB@2019-09-02 00:00:00+01, AA@2019-09-03 00:00:00+01]')])
>>> TTextSeqSet([TTextSeq('[AA@2019-09-01 00:00:00+01]'), TTextSeq('[BB@2019-09-02 00:00:00+01, AA@2019-09-03 00:00:00+01]')])
ComponentClass

alias of TTextSeq

classmethod interpolation()

Interpolation of the temporal value, that is, 'Stepwise'.

class mobilitydb.main.TPointInst(value, time=None, srid=None)

Bases: mobilitydb.temporal.tinstant.TInstant

Abstract class for representing temporal points of instant subtype.

getValues

Geometry representing the values taken by the temporal value.

class mobilitydb.main.TPointInstSet(*argv, srid=None)

Bases: mobilitydb.temporal.tinstantset.TInstantSet

Abstract class for representing temporal points of instant set subtype.

getValues

Geometry representing the values taken by the temporal value.

class mobilitydb.main.TPointSeq(instantList, lower_inc=None, upper_inc=None, interp=None, srid=None)

Bases: mobilitydb.temporal.tsequence.TSequence

Abstract class for representing temporal points of sequence subtype.

interpolation

Interpolation of the temporal value, which is either 'Linear' or 'Stepwise'.

getValues

Geometry representing the values taken by the temporal value.

class mobilitydb.main.TPointSeqSet(sequenceList, interp=None, srid=None)

Bases: mobilitydb.temporal.tsequenceset.TSequenceSet

Abstract class for representing temporal points of sequence set subtype.

interpolation

Interpolation of the temporal value, which is either 'Linear' or 'Stepwise'.

getValues

Geometry representing the values taken by the temporal value.

class mobilitydb.main.TGeomPoint

Bases: mobilitydb.temporal.temporal.Temporal

Abstract class for representing temporal geometric or geographic points of any subtype.

hasz

Does the temporal point has Z dimension?

srid

Returns the SRID.

class mobilitydb.main.TGeomPointInst(value, time=None, srid=None)

Bases: mobilitydb.main.tpoint.TPointInst, mobilitydb.main.tpoint.TGeomPoint

Class for representing temporal geometric points of instant subtype.

TGeomPointInst objects can be created with a single argument of type string as in MobilityDB.

>>> TGeomPointInst('Point(10.0 10.0)@2019-09-01')
>>> TGeomPointInst('SRID=4326,Point(10.0 10.0)@2019-09-01')

Another possibility is to give the value and the time arguments, which can be instances of str, Point or datetime. Additionally, the SRID can be specified, it will be 0 by default if not given.

>>> TGeomPointInst('Point(10.0 10.0)', '2019-09-08 00:00:00+01', 4326)
>>> TGeomPointInst(['Point(10.0 10.0)', '2019-09-08 00:00:00+01', 4326])
>>> TGeomPointInst(Point(10.0, 10.0), parse('2019-09-08 00:00:00+01'), 4326)
>>> TGeomPointInst([Point(10.0, 10.0), parse('2019-09-08 00:00:00+01'), 4326])
class mobilitydb.main.TGeomPointInstSet(*argv, **kwargs)

Bases: mobilitydb.main.tpoint.TPointInstSet, mobilitydb.main.tpoint.TGeomPoint

Class for representing temporal geometric points of instant set subtype.

TGeomPointInstSet objects can be created with a single argument of type string as in MobilityDB.

>>> TGeomPointInstSet('Point(10.0 10.0)@2019-09-01')

Another possibility is to give a tuple or list of arguments specifying the composing instants, which can be instances of str or TGeomPointInst.

>>> TGeomPointInstSet('Point(10.0 10.0)@2019-09-01 00:00:00+01', 'Point(20.0 20.0)@2019-09-02 00:00:00+01', 'Point(10.0 10.0)@2019-09-03 00:00:00+01')
>>> TGeomPointInstSet(TGeomPointInst('Point(10.0 10.0)@2019-09-01 00:00:00+01'), TGeomPointInst('Point(20.0 20.0)@2019-09-02 00:00:00+01'), TGeomPointInst('Point(10.0 10.0)@2019-09-03 00:00:00+01'))
>>> TGeomPointInstSet(['Point(10.0 10.0)@2019-09-01 00:00:00+01', 'Point(20.0 20.0)@2019-09-02 00:00:00+01', 'Point(10.0 10.0)@2019-09-03 00:00:00+01'])
>>> TGeomPointInstSet([TGeomPointInst('Point(10.0 10.0)@2019-09-01 00:00:00+01'), TGeomPointInst('Point(20.0 20.0)@2019-09-02 00:00:00+01'), TGeomPointInst('Point(10.0 10.0)@2019-09-03 00:00:00+01')])
ComponentClass

alias of TGeomPointInst

class mobilitydb.main.TGeomPointSeq(instantList, lower_inc=None, upper_inc=None, interp=None, srid=None)

Bases: mobilitydb.main.tpoint.TPointSeq, mobilitydb.main.tpoint.TGeomPoint

Class for representing temporal geometric points of sequence subtype.

TGeomPointSeq objects can be created with a single argument of type string as in MobilityDB.

>>> TGeomPointSeq('[Point(10.0 10.0)@2019-09-01 00:00:00+01, Point(20.0 20.0)@2019-09-02 00:00:00+01, Point(10.0 10.0)@2019-09-03 00:00:00+01]')
>>> TGeomPointSeq('Interp=Stepwise;[Point(10.0 10.0)@2019-09-01 00:00:00+01, Point(20.0 20.0)@2019-09-02 00:00:00+01, Point(10.0 10.0)@2019-09-03 00:00:00+01]')

Another possibility is to give the arguments as follows:

  • instantList is the list of composing instants, which can be instances of str or TGeogPointInst,
  • lower_inc and upper_inc are instances of bool specifying whether the bounds are inclusive or not, where by default ‘lower_inc` is True and upper_inc is False,
  • interp which is either 'Linear' or 'Stepwise', the former being the default, and
  • srid is an integer specifiying the SRID

Some examples are shown next.

>>> TGeomPointSeq(['Point(10.0 10.0)@2019-09-01 00:00:00+01', 'Point(20.0 20.0)@2019-09-02 00:00:00+01', 'Point(10.0 10.0)@2019-09-03 00:00:00+01'])
>>> TGeomPointSeq([TGeomPointInst('Point(10.0 10.0)@2019-09-01 00:00:00+01'), TGeomPointInst('Point(20.0 20.0)@2019-09-02 00:00:00+01'), TGeomPointInst('Point(10.0 10.0)@2019-09-03 00:00:00+01')])
>>> TGeomPointSeq(['Point(10.0 10.0)@2019-09-01 00:00:00+01', 'Point(20.0 20.0)@2019-09-02 00:00:00+01', 'Point(10.0 10.0)@2019-09-03 00:00:00+01'], True, True, 'Stepwise')
>>> TGeomPointSeq([TGeomPointInst('Point(10.0 10.0)@2019-09-01 00:00:00+01'), TGeomPointInst('Point(20.0 20.0)@2019-09-02 00:00:00+01'), TGeomPointInst('Point(10.0 10.0)@2019-09-03 00:00:00+01')], True, True, 'Stepwise')
ComponentClass

alias of TGeomPointInst

class mobilitydb.main.TGeomPointSeqSet(sequenceList, interp=None, srid=None)

Bases: mobilitydb.main.tpoint.TPointSeqSet, mobilitydb.main.tpoint.TGeomPoint

Class for representing temporal geometric points of sequence subtype.

TGeomPointSeqSet objects can be created with a single argument of type string as in MobilityDB.

>>> TGeomPointSeqSet('{[Point(10.0 10.0)@2019-09-01 00:00:00+01], [Point(20.0 20.0)@2019-09-02 00:00:00+01, Point(10.0 10.0)@2019-09-03 00:00:00+01]}')
>>> TGeomPointSeqSet('Interp=Stepwise;{[Point(10.0 10.0)@2019-09-01 00:00:00+01], [Point(20.0 20.0)@2019-09-02 00:00:00+01, Point(10.0 10.0)@2019-09-03 00:00:00+01]}')

Another possibility is to give the arguments as follows:

  • sequenceList is the list of composing sequences, which can be instances of str or TGeomPointSeq,
  • interp can be 'Linear' or 'Stepwise', the former being the default, and
  • srid is an integer specifiying the SRID, if will be 0 by default if not given.

Some examples are shown next.

>>> TGeomPointSeqSet(['[Point(10.0 10.0)@2019-09-01 00:00:00+01]', '[Point(20.0 20.0)@2019-09-02 00:00:00+01, Point(10.0 10.0)@2019-09-03 00:00:00+01]'])
>>> TGeomPointSeqSet(['[Point(10.0 10.0)@2019-09-01 00:00:00+01]', '[Point(20.0 20.0)@2019-09-02 00:00:00+01, Point(10.0 10.0)@2019-09-03 00:00:00+01]'], 'Linear')
>>> TGeomPointSeqSet(['Interp=Stepwise;[Point(10.0 10.0)@2019-09-01 00:00:00+01]', 'Interp=Stepwise;[Point(20.0 20.0)@2019-09-02 00:00:00+01, Point(10.0 10.0)@2019-09-03 00:00:00+01]'], 'Stepwise')
>>> TGeomPointSeqSet([TGeomPointSeq('[Point(10.0 10.0)@2019-09-01 00:00:00+01]'), TGeomPointSeq('[Point(20.0 20.0)@2019-09-02 00:00:00+01, Point(10.0 10.0)@2019-09-03 00:00:00+01]')])
>>> TGeomPointSeqSet([TGeomPointSeq('[Point(10.0 10.0)@2019-09-01 00:00:00+01]'),  TGeomPointSeq('[Point(20.0 20.0)@2019-09-02 00:00:00+01, Point(10.0 10.0)@2019-09-03 00:00:00+01]')], 'Linear')
>>> TGeomPointSeqSet([TGeomPointSeq('Interp=Stepwise;[Point(10.0 10.0)@2019-09-01 00:00:00+01]'), TGeomPointSeq('Interp=Stepwise;[Point(20.0 20.0)@2019-09-02 00:00:00+01, Point(10.0 10.0)@2019-09-03 00:00:00+01]')], 'Stepwise')
ComponentClass

alias of TGeomPointSeq

class mobilitydb.main.TGeogPoint

Bases: mobilitydb.temporal.temporal.Temporal

Abstract class for representing temporal geographic points of any subtype.

hasz

Does the temporal point has Z dimension?

srid

Returns the SRID.

class mobilitydb.main.TGeogPointInst(value, time=None, srid=None)

Bases: mobilitydb.main.tpoint.TPointInst, mobilitydb.main.tpoint.TGeogPoint

Class for representing temporal geographic points of instant subtype.

TGeogPointInst objects can be created with a single argument of type string as in MobilityDB.

>>> TGeogPointInst('Point(10.0 10.0)@2019-09-01')

Another possibility is to give the value and the time arguments, which can be instances of str, Point or datetime. Additionally, the SRID can be specified, it will be 0 by default if not given.

>>> TGeogPointInst('Point(10.0 10.0)', '2019-09-08 00:00:00+01')
>>> TGeogPointInst(['Point(10.0 10.0)', '2019-09-08 00:00:00+01'])
>>> TGeogPointInst(Point(10.0, 10.0), parse('2019-09-08 00:00:00+01'))
>>> TGeogPointInst([Point(10.0, 10.0), parse('2019-09-08 00:00:00+01')])
class mobilitydb.main.TGeogPointInstSet(*argv, **kwargs)

Bases: mobilitydb.main.tpoint.TPointInstSet, mobilitydb.main.tpoint.TGeogPoint

Class for representing temporal geometric points of instant set subtype.

TGeogPointInstSet objects can be created with a single argument of type string as in MobilityDB.

>>> TGeogPointInstSet('Point(10.0 10.0)@2019-09-01')

Another possibility is to give a tuple or list of arguments specifying the composing instants, which can be instances of str or TGeogPointInst.

>>> TGeogPointInstSet('Point(10.0 10.0)@2019-09-01 00:00:00+01', 'Point(20.0 20.0)@2019-09-02 00:00:00+01', 'Point(10.0 10.0)@2019-09-03 00:00:00+01')
>>> TGeogPointInstSet(TGeogPointInst('Point(10.0 10.0)@2019-09-01 00:00:00+01'), TGeogPointInst('Point(20.0 20.0)@2019-09-02 00:00:00+01'), TGeogPointInst('Point(10.0 10.0)@2019-09-03 00:00:00+01'))
>>> TGeogPointInstSet(['Point(10.0 10.0)@2019-09-01 00:00:00+01', 'Point(20.0 20.0)@2019-09-02 00:00:00+01', 'Point(10.0 10.0)@2019-09-03 00:00:00+01'])
>>> TGeogPointInstSet([TGeogPointInst('Point(10.0 10.0)@2019-09-01 00:00:00+01'), TGeogPointInst('Point(20.0 20.0)@2019-09-02 00:00:00+01'), TGeogPointInst('Point(10.0 10.0)@2019-09-03 00:00:00+01')])
ComponentClass

alias of TGeogPointInst

class mobilitydb.main.TGeogPointSeq(instantList, lower_inc=None, upper_inc=None, interp=None, srid=None)

Bases: mobilitydb.main.tpoint.TPointSeq, mobilitydb.main.tpoint.TGeogPoint

Class for representing temporal geographic points of sequence subtype.

TGeogPointSeq objects can be created with a single argument of type string as in MobilityDB.

>>> TGeogPointSeq('[Point(10.0 10.0)@2019-09-01 00:00:00+01, Point(20.0 20.0)@2019-09-02 00:00:00+01, Point(10.0 10.0)@2019-09-03 00:00:00+01]')
>>> TGeogPointSeq('Interp=Stepwise;[Point(10.0 10.0)@2019-09-01 00:00:00+01, Point(20.0 20.0)@2019-09-02 00:00:00+01, Point(10.0 10.0)@2019-09-03 00:00:00+01]')

Another possibility is to give the arguments as follows:

  • instantList is the list of composing instants, which can be instances of str or TGeogPointInst,
  • lower_inc and upper_inc are instances of bool specifying whether the bounds are includive or not, where by default ‘lower_inc` is True and upper_inc is False, and
  • interp which is either 'Linear' or 'Stepwise', the former being the default.
  • srid is an integer specifiying the SRID

Some examples are shown next.

>>> TGeogPointSeq(['Point(10.0 10.0)@2019-09-01 00:00:00+01', 'Point(20.0 20.0)@2019-09-02 00:00:00+01', 'Point(10.0 10.0)@2019-09-03 00:00:00+01'])
>>> TGeogPointSeq([TGeogPointInst('Point(10.0 10.0)@2019-09-01 00:00:00+01'), TGeogPointInst('Point(20.0 20.0)@2019-09-02 00:00:00+01'), TGeogPointInst('Point(10.0 10.0)@2019-09-03 00:00:00+01')])
>>> TGeogPointSeq(['Point(10.0 10.0)@2019-09-01 00:00:00+01', 'Point(20.0 20.0)@2019-09-02 00:00:00+01', 'Point(10.0 10.0)@2019-09-03 00:00:00+01'], True, True, 'Stepwise')
>>> TGeogPointSeq([TGeogPointInst('Point(10.0 10.0)@2019-09-01 00:00:00+01'), TGeogPointInst('Point(20.0 20.0)@2019-09-02 00:00:00+01'), TGeogPointInst('Point(10.0 10.0)@2019-09-03 00:00:00+01')], True, True, 'Stepwise')
ComponentClass

alias of TGeogPointInst

class mobilitydb.main.TGeogPointSeqSet(sequenceList, interp=None, srid=None)

Bases: mobilitydb.main.tpoint.TPointSeqSet, mobilitydb.main.tpoint.TGeogPoint

Class for representing temporal geographic points of sequence subtype.

TGeogPointSeqSet objects can be created with a single argument of type string as in MobilityDB.

>>> TGeogPointSeqSet('{[Point(10.0 10.0)@2019-09-01 00:00:00+01], [Point(20.0 20.0)@2019-09-02 00:00:00+01, Point(10.0 10.0)@2019-09-03 00:00:00+01]}')
>>> TGeogPointSeqSet('Interp=Stepwise;{[Point(10.0 10.0)@2019-09-01 00:00:00+01], [Point(20.0 20.0)@2019-09-02 00:00:00+01, Point(10.0 10.0)@2019-09-03 00:00:00+01]}')

Another possibility is to give the arguments as follows:

  • sequenceList is the list of composing sequences, which can be instances of str or TGeogPointSeq,
  • interp can be 'Linear' or 'Stepwise', the former being the default, and
  • srid is an integer specifiying the SRID, if will be 0 by default if not given.

Some examples are shown next.

>>> TGeogPointSeqSet(['[Point(10.0 10.0)@2019-09-01 00:00:00+01]', '[Point(20.0 20.0)@2019-09-02 00:00:00+01, Point(10.0 10.0)@2019-09-03 00:00:00+01]'])
>>> TGeogPointSeqSet(['[Point(10.0 10.0)@2019-09-01 00:00:00+01]', '[Point(20.0 20.0)@2019-09-02 00:00:00+01, Point(10.0 10.0)@2019-09-03 00:00:00+01]'], 'Linear')
>>> TGeogPointSeqSet(['Interp=Stepwise;[Point(10.0 10.0)@2019-09-01 00:00:00+01]', 'Interp=Stepwise;[Point(20.0 20.0)@2019-09-02 00:00:00+01, Point(10.0 10.0)@2019-09-03 00:00:00+01]'], 'Stepwise')
>>> TGeogPointSeqSet([TGeogPointSeq('[Point(10.0 10.0)@2019-09-01 00:00:00+01]'), TGeogPointSeq('[Point(20.0 20.0)@2019-09-02 00:00:00+01, Point(10.0 10.0)@2019-09-03 00:00:00+01]')])
>>> TGeogPointSeqSet([TGeogPointSeq('[Point(10.0 10.0)@2019-09-01 00:00:00+01]'),  TGeogPointSeq('[Point(20.0 20.0)@2019-09-02 00:00:00+01, Point(10.0 10.0)@2019-09-03 00:00:00+01]')], 'Linear')
>>> TGeogPointSeqSet([TGeogPointSeq('Interp=Stepwise;[Point(10.0 10.0)@2019-09-01 00:00:00+01]'), TGeogPointSeq('Interp=Stepwise;[Point(20.0 20.0)@2019-09-02 00:00:00+01, Point(10.0 10.0)@2019-09-03 00:00:00+01]')], 'Stepwise')
ComponentClass

alias of TGeogPointSeq