R: Translate between WKB and WKT

wkb_translate_wkt {wk}

R Documentation

Translate between WKB and WKT

Description

Translate between WKB and WKT

Usage

wkb_translate_wkt(
  wkb,
  include_z = NA,
  include_m = NA,
  include_srid = NA,
  precision = 16,
  trim = TRUE
)

wkb_translate_wkb(
  wkb,
  include_z = NA,
  include_m = NA,
  include_srid = NA,
  endian = wk_platform_endian(),
  buffer_size = 2048
)

wkb_translate_wksxp(wkb, include_z = NA, include_m = NA, include_srid = NA)

wkt_translate_wkt(
  wkt,
  include_z = NA,
  include_m = NA,
  include_srid = NA,
  precision = 16,
  trim = TRUE
)

wkt_translate_wkb(
  wkt,
  include_z = NA,
  include_m = NA,
  include_srid = NA,
  endian = wk_platform_endian(),
  buffer_size = 2048
)

wkt_translate_wksxp(wkt, include_z = NA, include_m = NA, include_srid = NA)

wksxp_translate_wkt(
  wksxp,
  include_z = NA,
  include_m = NA,
  include_srid = NA,
  precision = 16,
  trim = TRUE
)

wksxp_translate_wkb(
  wksxp,
  include_z = NA,
  include_m = NA,
  include_srid = NA,
  endian = wk_platform_endian(),
  buffer_size = 2048
)

wksxp_translate_wksxp(wksxp, include_z = NA, include_m = NA, include_srid = NA)

wk_platform_endian()

Arguments

`wkb`	A `list()` of `raw()` vectors, such as that returned by `sf::st_as_binary()`.
`include_z, include_m, include_srid`	Include the values of the Z and M coordinates and/or SRID in the output? Use `FALSE` to omit, `TRUE` to include, or `NA` to include only if present. Note that using `TRUE` may result in an error if there is no value present in the original.
`precision`	The rounding precision to use when writing (number of decimal places).
`trim`	Trim unnecessary zeroes in the output?
`endian`	For WKB writing, 0 for big endian, 1 for little endian. Defaults to `wk_platform_endian()` (slightly faster).
`buffer_size`	For WKB writing, the initial buffer size to use for each feature, in bytes. This will be extended when needed, but if you are calling this repeatedly with huge geometries, setting this value to a larger number may result in less copying.
`wkt`	A character vector containing well-known text.
`wksxp`	A `list()` of classed objects

Value

*_translate_wkt() returns a character vector of well-known text; *_translate_wkb() returns a list of raw vectors, and *_translate_wksxp() returns an unclassed list of wksxp() geometries. Unlike as_wkb(), as_wkt(), and as_wksxp(), these functions do not attach a class to the output.

Examples

# translate between WKT and WKB
(wkb <- wkt_translate_wkb("POINT (30 10)"))
wkb_translate_wkt(wkb)

# some basic creation options are also available
wkt_translate_wkt("POINT (30 10)", trim = FALSE)
wkb_translate_wkb(wkb, endian = 0)

[Package wk version 0.3.4 Index]