interZoneC: interZoneC
In geozoning: Zoning Methods for Spatial Data

Description Usage Arguments Details Value Examples

interZoneC

1	interZoneC(Z, iC, iZC, closePt)

`Z`	zoning geometry (list of SpatialPolygons)
`iC`	zone number
`iZC`	other zone number
`closePt`	SpatialPoints object in other zone used as circle center

finds two intersection points of a circle with a zone. The circle radius is chosen so that it will intersect both zones given as arguments.

a list with components

spi: Two SpatialPoints to be used for the junction of the two zones
ord: Order in which to use the points

data(mapTest)
qProb=c(0.2,0.5)
ZK = initialZoning(qProb, mapTest)
K=ZK$resZ
Z=K$zonePolygone
plotZ(K$zonePolygone) # zoning
closePt = geozoning:::getClosePt(Z,6,8)
points(closePt,col="red")
res  = geozoning:::interZoneC(Z,6,8,closePt)
points(res$spi,col="red")