Determine Which Tile Contains Each Given Point
Given a tessellation and a list of spatial points, determine which tile of the tessellation contains each of the given points.
tileindex(x, y, Z)
x,y |
Spatial coordinates.
Numeric vectors of equal length.
(Alternatively |
Z |
A tessellation (object of class |
This function determines which tile of the tessellation Z
contains each of the spatial points
with coordinates (x[i],y[i]).
The result is a factor, of the same length as x and y,
indicating which tile contains each point. The levels of the factor
are the names of the tiles of Z.
Values are NA if the corresponding point lies outside the tessellation.
A factor, of the same length as x and y,
whose levels are the names of the tiles of Z.
Adrian Baddeley Adrian.Baddeley@curtin.edu.au, Rolf Turner r.turner@auckland.ac.nz and Ege Rubak rubak@math.aau.dk
as.function.tess to create a function whose
value is the tile index.
X <- runifrect(7) V <- dirichlet(X) tileindex(0.1, 0.4, V) tileindex(list(x=0.1, y=0.4), Z=V) tileindex(X, Z=V)
Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.