visibility_proportion: Visibility Proportion

In STBrinkmann/GVI: R package for computing VGVI for Spatial Raster

Visibility Proportion

Description

Function that calculates the proportion of visible area within a viewshed

Usage

visibility_proportion(
  observer,
  max_distance = 800,
  dsm_rast,
  dtm_rast,
  observer_height = 1.7,
  raster_res = NULL,
  plot = FALSE
)

Arguments

observer	object of class sf with one point; Starting location
max_distance	numeric; Buffer distance to calculate the viewshed
dsm_rast	object of class rast; rast of the DSM
dtm_rast	object of class rast; rast of the DTM
observer_height	numeric > 0; Height of the observer (e.g. 1.7 meters)
raster_res	optional; NULL or numeric > 0; Resolution that the viewshed raster should be aggregated to. Must be a multible of the dsm_rast resolution
plot	optional; Plot the intersect of the buffer around the observer location and the DSM (left DSM; right visibility raster)

Value

numeric; Proportion of visible area of the viewshed. Values range from 0 to 1

STBrinkmann/GVI documentation built on March 11, 2024, 3:39 p.m.