shadow (version 0.1.3)

classifyAz: Classify azimuth of line segments

Description

Classify azimuth of line segments

Usage

classifyAz(sl)

Arguments

sl

A SpatialLines* object

Value

A list with two elements:

• az the segment azimuth values
• q the corresponding quarters

Examples

data(build)
build_seg = toSeg(build[1, ])
az = classifyAz(build_seg)
plot(build_seg, col = rainbow(4)[az$q])
raster::text(rgeos::gCentroid(build_seg, byid = TRUE), round(az$az))