MobilityDB 1.3
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◆ ttouches_geo_tgeo()

Temporal * ttouches_geo_tgeo ( const GSERIALIZED gs,
const Temporal temp,
bool  restr,
bool  atvalue 
)

Return a temporal Boolean that states whether a geometry touches a temporal geo.

The temporal touches relationship is computed as follows:

  • For temporal points ttouches(tpoint, geo) = tintersects(tpoint, st_boundary(geo))
  • For temporal geometries, compute the relationship at each instant using the lifting infrastructure
    Parameters
    [in]tempTemporal geo
    [in]gsGeometry
    [in]restrTrue when the result is restricted to a value
    [in]atvalueValue to restrict @csqlfn Ttouches_geo_tgeo()
    Note
    The function does not support 3D or geographies since the PostGIS function ST_Touches only supports 2D geometries