plotvfrayR Documentation

Plots binocular visual field rays

Description

plotvfray plots a figure showing how the left and right visual field sensitivity threshold data interact in the simulated binocular visual field.

Usage

plotvfray(leftvf, rghtvf, lefttheta, righttheta, fixdist, distplane)

Arguments

leftvf

An 8 by 10 matrix of sensitivity threshold data for the left visual field

rghtvf

An 8 by 10 matrix of sensitivity threshold data for the right visual field

lefttheta

A number left eye rotating angle in radian

righttheta

A number right eye rotating angle in radian

fixdist

A 2 element vector the coordinates of the fixation point in cartesian system in mm.

distplane

A number object distance in mm range from 0 to a maximum of 1500 mm.

Value

A plot of binocular visual field rays from a top view with left eye on the top.

Warning

the unit of fixdist, pd and distplane must be in mm.

Examples


rghtvf <- matrix(c(
NA, NA, NA, 30, 30, 30, 30, NA, NA, NA,
NA, NA, 30, 30, 30, 30, 30, 30, NA, NA,
NA, 30, 30, 30, 30, 30, 30, 30, 30, NA,
30, 30, 30, 30, 30, 30, 30, 30, 30, NA,
30, 30, 30, 30, 30, 30, 30,  0, 30, NA,
NA, 30, 30, 30, 30, 30, 30, 30, 30, NA,
NA, NA, 30, 30, 30, 30, 30, 30, NA, NA,
NA, NA, NA, 30, 30, 30, 30, NA, NA, NA
), ncol=10, byrow=TRUE)

leftvf <- rghtvf[, 10:1]

plotvfray(leftvf, rghtvf, -.05, .05, c(700, 0), 1000)