Converts a spatial tessellation object to a data frame.
# S3 method for tess
as.data.frame(x, ...)A data frame with columns named x, y, Tile,
and possibly other columns.
Tessellation (object of class "tess").
Further arguments passed to
as.data.frame.owin or
as.data.frame.im and ultimately to
as.data.frame.default
to determine the row names and other features.
Adrian Baddeley Adrian.Baddeley@curtin.edu.au, Rolf Turner rolfturner@posteo.net and Ege Rubak rubak@math.aau.dk.
This function converts the tessellation x to a data frame.
If x is a pixel image tessellation (a pixel image with factor
values specifying the tile membership of each pixel) then this
pixel image is converted to a data frame by
as.data.frame.im. The result is a data frame with
columns x and y giving the pixel coordinates,
and Tile identifying the tile containing the pixel.
If x is a tessellation consisting of a rectangular grid of tiles
or a list of polygonal tiles, then each tile is converted to a
data frame by as.data.frame.owin, and these data frames
are joined together, yielding a single large data frame containing
columns x, y giving the coordinates of vertices of the
polygons, and Tile identifying the tile.
as.data.frame.owin,
as.data.frame.im
Z <- as.data.frame(dirichlet(cells))
head(Z, 10)
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