Skip to contents

Rasterize line density

Source: R/rasterizeLineDensity.R
rasterizeLineDensity.Rd

Rasterize line density in meters per hectare.

Usage

rasterizeLineDensity(x, r, ptDensity = 1)

Arguments

x

an sf object containing lines and/or points

r

a SpatRaster or RasterLayer object to be used as a template for the output raster

ptDensity

a number giving the density to assign to points, in units of res(r). A value of 1 indicates one straight line crossing of the pixel. A value of 2+2*2^0.5 is horizontal, vertical, and diagonal crossings. If NULL, points in x will be ignored.

Value

A SpatRaster object with values representing the density of lines in meters per hectare.

See also

Caribou habitat functions: CaribouHabitat-class, calcBinaryUse(), caribouHabitat(), coefTableHR, coefTableStd, fnlcToResType, loadSpatialInputs(), plcToResType, reclassPLC(), resTypeCode, results(), rfuToResType, threshTable, updateCaribou()

Examples

# create example raster
lc <- terra::rast(xmin = 0, xmax = 25000, ymin = 0, ymax = 25000, 
                     resolution = 250, crs = "EPSG:5070")

#' # create line
lf <- sf::st_as_sf(sf::st_sfc(list(sf::st_linestring(matrix(c(0, 0, 10000, 10000),
                                                            ncol = 2, byrow = TRUE)),
                                   sf::st_linestring(matrix(c(1, 10001, 10001, 1),
                                                            ncol = 2, byrow = TRUE)),
                                   sf::st_linestring(matrix(c(5001, 10001, 5001, 1),
                                                            ncol = 2, byrow = TRUE))),
                                   crs = 5070))

rastLines <- rasterizeLineDensity(lf, lc)

plot(rastLines)