simReserve: Simulate randomly sited reserve

In jcarlis3/umbrella: Evaluating Conservation Reserves

Simulate randomly sited reserve

Description

This function is used to generate a randomly sited reserve, more specifically, an aggregate of multiple reserve units (distinct polygons).

Usage

simReserve(target.poly, buff.width, total.area, wiggle)

Arguments

target.poly	A polygon within which all simulated reserves are to be contained. The availability mask.
buff.width	The radius of the randomly sited circles to be used.
total.area	The target size of the simulated reserve.
wiggle	How much bigger/smaller can the simulated reserves be than total.area (in same units as total.area)

Details

The reserve is built by randomly siting circular polygons of the specified size. The polygons are allowed to overlap. Circles are iteratively added until the specified area is reached, then a smaller circle is trimmed out if the simulated reserve overshot the specified area. The user can specify a tolerance for how much bigger/smaller than the specified area is acceptable. This function has been further developed in the ecoinfo package, contact the author for details.

Value

Object of class SpatialPolygons, the simulated reserve.

Author(s)

Jason D. Carlisle, University of Wyoming, <[e-mail]>

jcarlis3/umbrella documentation built on March 26, 2022, 7:20 p.m.