spatstat.geom (version 3.2-7)

as.data.frame.tess: Convert Tessellation to Data Frame

Description

Converts a spatial tessellation object to a data frame.

Usage

# S3 method for tess
as.data.frame(x, ...)

Value

A data frame with columns named x, y, Tile, and possibly other columns.

Arguments

x

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.

Author

Adrian Baddeley , Rolf Turner and Ege Rubak .

Details

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.

See Also

as.data.frame.owin, as.data.frame.im

Examples

  Z <- as.data.frame(dirichlet(cells))
  head(Z, 10)