unlinkCoords-LatticeMap-method: Unlink two LatticeMap Cells (coordinates)

In alcyon: Spatial Network Analysis

Unlink two LatticeMap Cells (coordinates)

Description

Unlink two cells on a LatticeMap using the point coordinates

Usage

## S4 method for signature 'LatticeMap'
unlinkCoords(map, fromX, fromY, toX, toY, copyMap = TRUE)

Arguments

map	A LatticeMap
fromX	X coordinate of the first unlink point
fromY	Y coordinate of the first unlink point
toX	X coordinate of the second unlink point
toY	Y coordinate of the second unlink point
copyMap	Optional. Copy the internal sala map

Value

A new LatticeMap with unlinked points

Examples

mifFile <- system.file(
    "extdata", "testdata", "gallery",
    "gallery_lines.mif",
    package = "alcyon"
  )
  sfMap <- st_read(mifFile,
    geometry_column = 1L, quiet = TRUE
  )
  latticeMap <- makeVGALatticeMap(
    sfMap,
    gridSize = 0.04,
    fillX = 3.01,
    fillY = 6.7,
    maxVisibility = NA,
    boundaryGraph = FALSE,
    verbose = FALSE
  )
latticeMap <- linkCoords(latticeMap, 1.74, 6.7, 5.05, 5.24)
latticeMap <- unlinkCoords(latticeMap, 1.74, 6.7, 5.05, 5.24)

alcyon documentation built on Aug. 30, 2026, 1:07 a.m.