scale.gpc.poly: Centering and Scaling a '"gpc.poly"' Polygon

In jimhester/surveillance: Temporal and Spatio-Temporal Modeling and Monitoring of Epidemic Phenomena

Description

This is a re-implementation of the corresponding method from package gpclib to also allow centering.

Usage

## S3 method for class 'gpc.poly'
scale(x, center = c(0,0), scale = c(1,1))

Arguments

x	an object of class "gpc.poly".
center	numeric vector of length 2 (x,y), which will be subtracted from the respective coordinates of x.
scale	numeric vector of length 2 (x,y), which serves as the divisor for the respective coordinates of x.

Value

A "gpc.poly", the shifted and/or scaled version of x.

jimhester/surveillance documentation built on May 19, 2019, 10:33 a.m.