splitLines: splitLines

In duccioa/sptools: Tools for editing, creating or converting "sp" spatial objects

Description

This function splits each line of an "sp" object of class SpatialLines into segments of a given length.

Usage

splitLines(spatial_line, split_length = 10, return.dataframe = FALSE,
  plot.results = FALSE)

Arguments

spatial_line	An "sp" object of class SpatialLines or SpatialLinesDataFrame.
split_length	The length of the segments to split the lines into, in units of the SpatialLines. Default 10.
return.dataframe	If TRUE, the functions returns a dataframe with IDs and coordinates, otherwise returns a SpatialLines object. Default FALSE.
plot.results	Visual representation of the results. If TRUE, the functions plots the original object in black and the vertex of the new segments in red. Default FALSE.

References

http://math.stackexchange.com/questions/175896/finding-a-point-along-a-line-a-certain-distance-away-from-another-point?newreg=468f66d7274f449b8ecf3fa4e63f41fe

http://tutorial.math.lamar.edu/Classes/CalcII/Vectors_Basics.aspx

Examples

library("sp", "sptools")
c1 = cbind(c(0,2,5,7), c(0,2,3,3))
l1 = Line(c1)
sl = list(Lines(list(l1), ID = 1))
SP = SpatialLines(sl)
plot(SP)
SPs = splitLines(SP, 0.4, plot.results = TRUE)

duccioa/sptools documentation built on May 3, 2019, 1:48 p.m.