Identify continuous lines in a network

Apply the Continuity in Street Network (COINS) method to identify sequences of edges that form naturally continuous strokes in a network.

stroke(
  edges,
  angle_threshold = 0,
  attributes = FALSE,
  flow_mode = FALSE,
  from_edge = NULL
)

Arguments

edges

An object of class sfc (or compatible), including the edge geometries (should be of type LineString or MultiLineString).

angle_threshold

Consecutive line segments can be considered part of the same stroke if the internal angle they form is larger than angle_threshold (in degrees). It should fall in the range \(0 \leq angle_threshold < 180\).

attributes

If TRUE, return a label for each edge, representing the groups each edge belongs to. Only possible for flow_mode = TRUE.

flow_mode

If TRUE, line segments that belong to the same edge are not split across strokes (even if they form internal angles smaller than angle_threshold).

from_edge

Only look for the continuous strokes that include the provided edges or line segments.

Value

An object of class sfc (if attributes = FALSE), a vector with the same length as edges otherwise.