◆ tspatial_extent_transfn()

STBox * tspatial_extent_transfn	(	STBox *	box,
		const Temporal *	temp
	)

Transition function for temporal extent aggregation of spatiotemporal values.

Parameters

[in]	box	Current aggregate value
[in]	temp	Spatiotemporal value @csqlfn Tspatial_extent_transfn()