These functions are optimised for graphics output, which in R require flat coordinate structures. See graphics::points(), graphics::lines(), and graphics::polypath() for how to send these to a graphics device, or grid::pointsGrob(), grid::linesGrob(), and grid::pathGrob() for how to create graphical objects using this output.

wkb_coords(wkb, sep_na = FALSE)

wkt_coords(wkt, sep_na = FALSE)

wksxp_coords(wksxp, sep_na = FALSE)

## Arguments

wkb A list() of raw() vectors, such as that returned by sf::st_as_binary(). Use TRUE to separate geometries and linear rings with a row of NAs. This is useful for generating output that can be fed directly to graphics::polypath() or graphics::lines() without modification. A character vector containing well-known text. A list() of classed objects

## Value

A data.frame with columns:

• feature_id: The index of the top-level feature

• part_id: The part identifier, guaranteed to be unique for every simple geometry (including those contained within a multi-geometry or collection)

• ring_id: The ring identifier, guaranteed to be unique for every ring.

• x, y, z, m: Coordinaate values (both absence and nan are recorded as NA)

## Examples

text <- c("LINESTRING (0 1, 19 27)", "LINESTRING (-1 -1, 4 10)")
wkt_coords(text)#>   feature_id part_id ring_id  x  y  z  m
#> 1          1       1       0  0  1 NA NA
#> 2          1       1       0 19 27 NA NA
#> 3          2       2       0 -1 -1 NA NA
#> 4          2       2       0  4 10 NA NAwkt_coords(text, sep_na = TRUE)#>   feature_id part_id ring_id  x  y  z  m
#> 1          1       1       0  0  1 NA NA
#> 2          1       1       0 19 27 NA NA
#> 3         NA      NA      NA NA NA NA NA
#> 4          2       2       0 -1 -1 NA NA
#> 5          2       2       0  4 10 NA NA