splitSLDF {SpatialGraph}

Split 1-Line Lines in a SpatialLines or a SpatialLinesDataFrame by intersection with a point dataset

Description

splitSLDF divides the 1-Line Lines in the SpatialLines or the SpatialLinesDataFrame at intersections with the input point dataset

Usage

splitSLDF(SLDF, SPDF, dmax=NULL)

Arguments

SLDF

length-1 SpatialLinesDataFrame or SpatialLines object

SPDF

SpatialPointsDataFrame

dmax

maximum distance between points in SPDF and the polylines in SLDF, for these to be considered for poyline splitting

Details

splitPolyline obtain the closest points in the SpatialLinesDataFrame to a given input set of points. Those closest points are used to divide the polylines in a number of transects. The individual transects are clipped to the input point dataset, so the different transects are continuous in space. Note that if the input points is quite appart from the polyline, the output sequence of transects may substantially differ form the input polyline at rupture zones. The input parameter dmax is provided as a mean to avoid too strange splitting results. Setting dmax to a ver low value will reduce the spureous results, but also the input points need to be closer to the lines for the adequate recognition of splitting points

Value

A SpatialLinesDataFrame or a SpatialLines, according to the input

See Also

Spatial-class