File containing the implementation of the SegmentST data type. More...

Functions
segmentst	insegmentst (cstring)

cstring	outsegmentst (segmentst)

segmentst	recvsegmentst (internal)

bytea	send (segmentst)

boolean	equals (segmentst segmenta, segmentst segmentb)

integer	hash (segmentst segment)

period	gett (segmentst segment)
	The function returns the period of the SegmentST. More...

timestamp	getti (segmentst segment)
	The function returns the start time of the period of the SegmentST. More...

timestamp	gette (segmentst segment)
	The function returns the end time of the period of the SegmentST. More...

segmentsp	getsp (segmentst segment)
	The function returns the Spatial Segment of the SegmentST. More...

pointsp	geti (segmentst segment)
	The function returns the start of the Spatial Segment of the SegmentST. More...

integer	getix (segmentst segment)
	The function returns the x coordinate of the start of the Spatial Segment of the SegmentST. More...

integer	getiy (segmentst segment)
	The function returns the y coordinate of the start of the Spatial Segment of the SegmentST. More...

pointsp	gete (segmentst segment)
	The function returns the end of the Spatial Segment of the SegmentST. More...

integer	getex (segmentst segment)
	The function returns the x coordinate of the end of the Spatial Segment of the SegmentST. More...

integer	getey (segmentst segment)
	The function returns the y coordinate of the end of the Spatial Segment of the SegmentST. More...

segmentst	segmentst (timestamp ti, integer ix, integer iy, timestamp te, integer ex, integer ey)
	The function returns a SegmentST data type. More...

segmentst	segmentst (pointst i, pointst e)
	The function returns a SegmentST data type. More...

segmentst	clone (segmentst segment)
	The function copy a SegmentST data type to a new position in the memory. More...

Detailed Description

File containing the implementation of the SegmentST data type.

Author: Marios Vodas (mvoda.nosp@m.s@gm.nosp@m.ail.c.nosp@m.om).

See also: SegmentST; Spatio-temporal data types

Function Documentation

segmentst clone ( segmentst segment )

The function copy a SegmentST data type to a new position in the memory.

Parameters

[in] segment the segment to be cloned

Returns: the new segment in the memory

boolean equals	(	segmentst	segmenta,
		segmentst	segmentb
	)

pointsp gete ( segmentst segment )

The function returns the end of the Spatial Segment of the SegmentST.

Parameters

[in] segment The SegmentST

Returns: end of the SegmentSP

See also: get

integer getex ( segmentst segment )

The function returns the x coordinate of the end of the Spatial Segment of the SegmentST.

Parameters

[in] segment The SegmentST

Returns: end of the SegmentSP

See also: get

integer getey ( segmentst segment )

The function returns the y coordinate of the end of the Spatial Segment of the SegmentST.

Parameters

[in] segment The SegmentST

Returns: end of the SegmentSP

See also: get

pointsp geti ( segmentst segment )

The function returns the start of the Spatial Segment of the SegmentST.

Parameters

[in] segment The SegmentST

Returns: start of the SegmentSP

See also: get

integer getix ( segmentst segment )

The function returns the x coordinate of the start of the Spatial Segment of the SegmentST.

Parameters

[in] segment The SegmentST

Returns: start of the SegmentSP

See also: get

integer getiy ( segmentst segment )

The function returns the y coordinate of the start of the Spatial Segment of the SegmentST.

Parameters

[in] segment The SegmentST

Returns: start of the SegmentSP

See also: get

segmentsp getsp ( segmentst segment )

The function returns the Spatial Segment of the SegmentST.

Parameters

[in] segment The SegmentST

Returns: SegmentSP

See also: get

period gett ( segmentst segment )

The function returns the period of the SegmentST.

Parameters

[in] segment The SegmentST

Returns: the period

See also: get

timestamp gette ( segmentst segment )

The function returns the end time of the period of the SegmentST.

Parameters

[in] segment The SegmentST

Returns: the end time

See also: get

timestamp getti ( segmentst segment )

The function returns the start time of the period of the SegmentST.

Parameters

[in] segment The SegmentST

Returns: the start time

See also: get

integer hash ( segmentst segment )

segmentst insegmentst ( cstring )

cstring outsegmentst ( segmentst )

segmentst recvsegmentst ( internal )

segmentst segmentst	(	timestamp	ti,
		integer	ix,
		integer	iy,
		timestamp	te,
		integer	ex,
		integer	ey
	)

The function returns a SegmentST data type.

Parameters

[in]	ti	the initial timestamp
[in]	ix	the initial x coordinate
[in]	iy	the initial y coordinate
[in]	te	the ending timestamp
[in]	ex	the ending x coordinate
[in]	ey	the ending y coordinate

Returns: a SegmentST data type

segmentst segmentst	(	pointst	i,
		pointst	e
	)

The function returns a SegmentST data type.

Parameters

[in]	i	the initial PointST
[in]	e	the initial PointST

Returns: a SegmentST data type

bytea send ( segmentst )

Functions

Detailed Description

Function Documentation