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What geometry type is this feature?

Source: R/is_geom_type.R
is_geom_type.Rd

is_geom_type() extends sf::st_geometry_type() to return a list with the standard output ("TYPES") and additional list values with logical vectors from sf::st_is() for "POINTS" (passing "POINT" and "MULTIPOINT" as type), "POLYGONS" (passing "POLYGON", "MULTIPOLYGON"), "LINESTRINGS" ("LINESTRING" and "MULTILINESTRING"), "GEOMETRYCOLLECTION" and "OTHER".

st_is_ext() adds a by_geometry argument that passes the results of sf::st_is() to all() if by_geometry is FALSE.

Usage

is_geom_type(x, type = NULL, by_geometry = FALSE, ext = TRUE)

is_point(x, by_geometry = FALSE)

is_multipoint(x, by_geometry = FALSE)

is_line(x, by_geometry = FALSE)

is_multiline(x, by_geometry = FALSE)

is_polygon(x, by_geometry = FALSE)

is_multipolygon(x, by_geometry = FALSE)

st_is_ext(x, type = NULL, by_geometry = FALSE)

Arguments

x

A sf or sfc object passed to sf::st_geometry_type()

type

If "POINT", check if geometry type is POINT. Same for all available geometry types; not case sensitive; Default: NULL

by_geometry

Passed to sf::st_geometry_type(); defaults to FALSE

ext

For is_geom_type(), if ext TRUE and check is NULL, return a list with checks for POINTS, POLYGONS, LINESTRING, and the returned types.

Value

  • If ext is FALSE and type is NULL, returns vector with geometry types identical to sf::st_geometry_type().

  • If ext is TRUE, returns a list and, if type is not NULL, returns a logical vector.