raptr (version 0.0.3)

sim.pus: Simulate planning units

Description

This function simulates planning units for RAP.

Usage

sim.pus(n, xmn = -sqrt(n)/2, xmx = sqrt(n)/2, ymn = -sqrt(n)/2,
  ymx = sqrt(n)/2)

Arguments

n

integer number of planning units. sqrt(n) must yield a valid number.

xmn

numeric value for minimum x-coordinate.

xmx

numeric value for maximum x-coordinate.

ymn

numeric value for minimum y-coordinate.

ymx

numeric value for maximum y-coordinate.

Value

SpatialPolygons with planning units.

Details

Square planning units are generated in the shape of a square. Default coordinate arguments are such that the planning units will be centered at origin. The data slot contains an 'id' (integer), cost (numeric), 'status' (integer), and area (numeric).

Examples

# NOT RUN {
# generate 225 sqauare planning units arranged in a square with 1 unit height/width
x <- sim.pus(225)
# generate 225 rectangular pus arranged in a square
y <- sim.pus(225, xmn=-5, xmx=10, ymn=-5, ymx=5)
# }
# NOT RUN {
par(mfrow=c(1,2))
plot(x, main='x')
plot(y, main='y')
par(mfrow=c(1,1))
# }