SpatialLinesMidPoints

0th

Percentile

Line midpoints

The function onverts SpatialLinesDataFrame to SpatialPointsDataFrame with points at the midpoints of the line segments.

Keywords
spatial
Usage
SpatialLinesMidPoints(sldf)
Arguments
sldf
A SpatialLines or SpatialLinesDataFrame object
Details

The function builds a SpatialPointsDataFrame from the midpoints of Line objects belonging to Lines objects in an object inheriting from a Spatial Lines object. The output data slot contains an index variable showing which Lines object the midpoints belong to.

Value

  • A SpatialPointsDataFrame object created from the input object.

Aliases
  • SpatialLinesMidPoints
Examples
xx <- readShapeLines(system.file("shapes/fylk-val.shp", package="maptools")[1],
 proj4string=CRS("+proj=utm +zone=33 +datum=WGS84"))
plot(xx, col="blue")
spdf <- SpatialLinesMidPoints(xx)
plot(spdf, col="orange", add=TRUE)
Documentation reproduced from package maptools, version 0.8-37, License: GPL (>= 2)

Community examples

Looks like there are no examples yet.