st_as_text: Return Well-known Text representation of simple feature...

Description Usage Arguments Details Examples

View source: R/wkt.R

Description

Return Well-known Text representation of simple feature geometry or coordinate reference system

Usage

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## S3 method for class 'crs'
st_as_text(x, ..., pretty = FALSE)

st_as_text(x, ...)

## S3 method for class 'sfg'
st_as_text(x, ...)

## S3 method for class 'sfc'
st_as_text(x, ..., EWKT = FALSE)

Arguments

x

object of class sfg, sfc or crs

...

modifiers; in particular digits can be passed to control the number of digits used

pretty

logical; if TRUE, print human-readable well-known-text representation of a coordinate reference system

EWKT

logical; if TRUE, print SRID=xxx; before the WKT string if epsg is available

Details

The returned WKT representation of simple feature geometry conforms to the simple features access specification and extensions, known as EWKT, supported by PostGIS and other simple features implementations for addition of SRID to a WKT string.

Examples

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st_as_text(st_point(1:2))
st_as_text(st_sfc(st_point(c(-90,40)), crs = 4326), EWKT = TRUE)

sf documentation built on July 24, 2019, 5:05 p.m.