npts: count the number of points/vertices/nodes of sf objects
In mapview: Interactive Viewing of Spatial Data in R
npts R Documentation
count the number of points/vertices/nodes of sf objects
Description
count the number of points/vertices/nodes of sf objects
Usage
npts(x, by_feature = FALSE)
Arguments
x
an sf/sfc object
by_feature
count total number of vertices (FALSE) of for each feature (TRUE).
Note
currently only works for *POINTS, *LINES and *POLYGONS (not GEOMETRYCOLLECTION).
Examples
npts(franconia)
npts(franconia, by_feature = TRUE)
npts(sf::st_geometry(franconia[1, ])) # first polygon
npts(breweries) # is the same as
nrow(breweries)
mapview documentation built on Oct. 13, 2023, 5:11 p.m.
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| npts | R Documentation |
count the number of points/vertices/nodes of sf objects
Description
count the number of points/vertices/nodes of sf objects
Usage
npts(x, by_feature = FALSE)
Arguments
x |
an sf/sfc object |
by_feature |
count total number of vertices (FALSE) of for each feature (TRUE). |
Note
currently only works for *POINTS, *LINES and *POLYGONS (not GEOMETRYCOLLECTION).
Examples
npts(franconia)
npts(franconia, by_feature = TRUE)
npts(sf::st_geometry(franconia[1, ])) # first polygon
npts(breweries) # is the same as
nrow(breweries)
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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