https://go.googlesource.com/gollvm/+/d5e7a8c6eb9e91e057b7dca23fc75ead58643a77/bridge/go-llvm-linemap.h
bridge/go-llvm-linemap.h - gollvm - Git at Google
bridgegollvmhgit
https://cran.r-project.org/web/packages/linemap/index.html
CRAN: Package linemap
Create maps made of lines. The package contains one function: linemap(). linemap() displays a map made of lines using a raster or gridded data.
cranpackage