detZoneClose: detZoneClose
In geozoning: Zoning Methods for Spatial Data

Description Usage Arguments Details Value Examples

detZoneClose

1	detZoneClose(iZ, Z, zoneN, distIsoZ = 0.075)

`iZ`	zone number
`Z`	zoning geometry (list of SpatialPolygons)
`zoneN`	modified zone neighborhood Logical matrix (FALSE values on diagonal)
`distIsoZ`	threshold distance above which a zone is considered as isolated

determines zones that are close to current zone, but not neighbors (common border). Therefore embedded or englobing zones are excluded.

a list with components

InterZoneSpace: TRUE if zone is isolated, FALSE otherwise
zoneClose: indices of zones close to zone iZ, empty if zone is isolated

data(resZTest)
Z=resZTest$zonePolygone
zoneN=resZTest$zoneNModif
plotZ(Z)
detZoneClose(4,Z,zoneN) # zone 4 is close to zone 3
detZoneClose(6,Z,zoneN) # zone 6 is isolated (no zone at a distance smaller than 0.075).