sample.by.poly: Sample a Polygon at Fixed Density

In sharpshootR: A Soil Survey Toolkit

Description

Generate sampling points within a SpatialPolygon object, according to a specified sampling density.

Usage

sample.by.poly(p, n.pts.per.ac=1, min.samples=5, 
sampling.type='hexagonal', iterations=10, p4s=NULL)

Arguments

p	a Polygon object, with coordinates in a projected CRS
n.pts.per.ac	requested sampling density in points per acre (results will be close)
min.samples	minimum requested number of samples per polygon
sampling.type	sampling type, see spsample
iterations	number of tries that spsample will attempt
p4s	a qualified proj4string that will be assigned to sampling points

Details

This function is typically accessed via some kind of helper function such as constantDensitySampling.

Value

A SpatialPoints object.

Note

This function expects that the Polygon object has coordinates associated with a projected CRS– e.g. units of meters.

Author(s)

D.E. Beaudette

See Also

constantDensitySampling

sharpshootR documentation built on May 31, 2017, 2:05 a.m.