library(SOmap)
options(SOmap.auto.topography.source = <path to my raster file>)
if the file is lacking projection metadata, as is very common with netcdf - files like Etopo2, Etopo1, the code assumes the source is longlat. Please report problems seen. For online use that option is simply NULL, and the auto code gets data from GEBCO 2019, or falls back to the installed data in the package.
new option for offline use
if the file is lacking projection metadata, as is very common with netcdf - files like Etopo2, Etopo1, the code assumes the source is longlat. Please report problems seen. For online use that option is simply NULL, and the auto code gets data from GEBCO 2019, or falls back to the installed data in the package.