sampArea: Create a sampling area
In role-model/CaatingaArthropods: Caatinga Arthropods

Description Usage Arguments Details Value Author(s)

View source: R/sampArea.R

Function to create an area for generating sampling points within

1 2	sampArea(region, edgeBuffer = NULL, roads, roadBufferMin = 100, roadBufferMax = 2100, exclude = NULL, utmZone = 13)

`region`	the larger area to consider (a `SpatialPolygonsDataFrame`)
`edgeBuffer`	an optional buffer to exclude edge effects
`roads`	a `SpatialLinesDataFrame` of access roads
`roadBufferMin`	the buffer to exclude around roads (in meters)
`roadBufferMax`	the max distance from roads within which points will be created (in meters)
`exclude`	an optional additional area to exclude as a `Spatial`* object
`utmZone`	the UTM zone to use for reprojection to UTM

Regardless of the CRS of the input polygons, thus function internally converts to and returns a polygon in a UTM projection, which is important for distance calculations.

A SpatialPointsDataFrame containing randomized sampling points

Andy Rominger <ajrominger@gmail.com>

role-model/CaatingaArthropods documentation built on Jan. 9, 2020, 12:36 a.m.