lines_extremities {spNetwork} | R Documentation |
Get lines extremities
Description
Generate a feature collection of points with the first and last vertex of each line in a feature collection of linestrings.
Usage
lines_extremities(lines)
Arguments
lines |
A feature collection of linestrings (simple Linestrings) |
Value
A feature collection of points
Examples
wkt_lines <- c(
"LINESTRING (0 0, 1 0)",
"LINESTRING (1 0, 2 0)",
"LINESTRING (2 0, 3 0)",
"LINESTRING (0 1, 1 1)")
linesdf <- data.frame(wkt = wkt_lines,
id = paste("l",1:length(wkt_lines),sep=""))
all_lines <- sf::st_as_sf(linesdf, wkt = "wkt")
all_lines <- cbind(linesdf$wkt,all_lines)
points <- lines_extremities(all_lines)
[Package spNetwork version 0.4.4.6 Index]