code_01.R

# Download 'ArcRasterRescue' from:
# https://github.com/r-barnes/ArcRasterRescue
# Compile with:
# make

# Export TIF from GDB
input = "test.gdb/"  # Must end with '/'!
output = "/home/michael/Downloads/out1.tif"
x = sprintf("ArcRasterRescue/./arc_raster.exe %s 0-1 %s", input, output)
system(x)

# Read back into R & plot
library(stars)

## Loading required package: abind

## Loading required package: sf

## Linking to GEOS 3.8.0, GDAL 3.0.4, PROJ 7.0.0

r = read_stars(output)
r

## stars_proxy object with 1 attribute in file:
## $out1.tif
## [1] "[...]/out1.tif"
## 
## dimension(s):
##   from    to   offset delta                       refsys point values    
## x    1 87936 -2249822    50 North_America_Equidistant... FALSE   NULL [x]
## y    1 57600  1290918   -50 North_America_Equidistant... FALSE   NULL [y]

plot(r)