opiSetup_for_MAIA: Implementation of opiSetup for the MAIA machine.
In OPI: Open Perimetry Interface

View source: R/MAIA.r

opiSetup_for_MAIA

R Documentation

Implementation of opiSetup for the MAIA machine.

Description

This is for internal use only. Use opiSetup() with these Arguments and you will get the Value back.

Arguments

settings

is a list that could contain:

fixation list(x,y,t,c) where
- x is one of 0, +-2.4, +-4.8 degrees.
- y is one of 0, +-2.4, +-4.8 degrees.
- t is 0 for big circle off, 1 for big circle on.
- p power integer in range 0..1023.
bg which is 0 for no background and other for some background
tracking which is 0 for no tracking and other for some tracking
open If present, will send OPI-OPEN to MAIA and look for prl, onh, fundus image

Details

Note that corner locations are missing, so both x and y cannot be +-4.8.

Value

A list containing * err which is NULL for success * message for some messages from MAIA (probably "0") For open list might (but might not) contain:

prl A pair giving the (x,y) in degrees of the Preferred Retinal Locus detected in the initial alignment.
onh a pair giving the (x,y) in degrees of the ONH as selected by the user.
image raw bytes being the JPEG compressed infra-red image acquired during alignment.