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touches (Function)

Two available sets of parameters:

  • First set returns true if the incoming geo.json.geometry event touches the given geo.json.geometryFence.
  • Second set returns true if the coordinates touch the given geo.json.geometryFence.


<BOOL> geo:touches(<DOUBLE> longitude, <DOUBLE> latitude, <STRING> geo.json.geometry.fence)
<BOOL> geo:touches(<STRING> geo.json.geometry, <STRING> geo.json.geometry.fence)

Query Parameters

NameDescriptionPossible Data TypesOptionalDynamic
longitudeLongitude of the geo location.DOUBLEYesYes
latitudeLatitude of the geo location.DOUBLEYesYes
geo.json.geometryString that contains geometry type and coordinates for a GeoJSON geometry.STRINGYesYes
geo.json.geometry.fenceString that contains geometry type and coordinates for a GeoJSON geometry fence.StringNoYes

Example 1

geo:touches( {'type':'Polygon','coordinates':[[[0.5, 0.5],[0.5, 1.5],[1.5, 1.5],[1.5, 0.5],[0.5, 0.5]]]} , {'type':'Polygon','coordinates':[[[10, 10],[10, 11],[11, 11],[11, 10],[10, 10]]]} )

This example returns false because geo.json.geometry does not touch geo.json.geometry.fence.

Example 2

geo:touches(10.5. 20.5 , {'type':'Polygon','coordinates':[[[0, 0],[0, 1],[1, 1],[1, 0],[0, 0]]]})

This example returns true because the coordinates do not touch geo.json.geometry.fence.