split_lines_at_vertex: Split lines at vertices in a feature collection of...

In JeremyGelb/spNetwork: Spatial Analysis on Network

Split lines at vertices in a feature collection of linestrings

Description

Split lines (feature collection of linestrings) at their nearest vertices (feature collection of points), may fail if the line geometries are self intersecting.

Usage

split_lines_at_vertex(lines, points, nearest_lines_idx, mindist)

Arguments

lines	The feature collection of linestrings to split
points	The feature collection of points to add to as vertex to the lines
nearest_lines_idx	For each point, the index of the nearest line
mindist	The minimum distance between one point and the extremity of the line to add the point as a vertex.

Value

A feature collection of linestrings

Examples

# reading the data
data(mtl_network)
data(bike_accidents)
# aggregating points within a 5 metres radius
bike_accidents$weight <- 1
agg_points <- aggregate_points(bike_accidents, 5)
mtl_network$LineID <- 1:nrow(mtl_network)
# snapping point to lines
snapped_points <- snapPointsToLines2(agg_points,
    mtl_network,
    "LineID"
)
# splitting lines
new_lines <- split_lines_at_vertex(mtl_network, snapped_points,
    snapped_points$nearest_line_id, 1)

JeremyGelb/spNetwork documentation built on May 24, 2024, 7:23 p.m.