OPI (version 2.9)

degToPix: Convert degrees to pixels for machine 'machine'

Description

Convert degrees to pixels for machine 'machine'

Usage

degToPix(xy, machine = "compass")

Arguments

xy

a 2 element vector c(x,y) where x and y are in degrees on a visual field with the usual conventions

machine

"compass" or ...?

Value

xy converted to pixels (top-left is (0,0)) for the machine or NA if machine is unknown

Examples

# NOT RUN {
degToPix(c(0, 0), machine="compass")  # c(960, 960) pixels
degToPix(c(-15, 2)) # c(495, 898) pixels

# }