dem_sample: Sample a random DEM with specified size from a larger DEM

In habtools: Tools and Metrics for 3D Surfaces and Objects

Sample a random DEM with specified size from a larger DEM

Description

Sample a random DEM with specified size from a larger DEM

Usage

dem_sample(data, L, allow_NA = TRUE, plot = FALSE, max_iter = 100)

Arguments

data	Digital elevation model of class RasterLayer.
L	Size of square to cut out of DEM.
allow_NA	Logical. Allow NAs in the sample? Useful when DEM is not regular.
plot	Logical. Plot the DEM and the cropped section?
max_iter	Maximum number of random crops to try when allow_NA = FALSE before failing.

Value

Digital elevation model of class RasterLayer.

Note

Not allowing NAs may increase sampling time for irregular DEMs that contain a lot of NAs; e.g., structure from motion transects.

Examples

dem <- dem_sample(horseshoe, L = 2, plot=TRUE)

habtools documentation built on May 29, 2024, 7:30 a.m.