Install ircmarkers by entering the following commands in the terminal:
sudo apt update sudo apt install ircmarkers
Description:
place markers on maps at given coordinates
IrcMarkers takes a map in .png or .jpg format and a list of coordinates and labels in xplanet format and places markers on the map. It was written to generate user maps of IRC channels. GnuPG/PGP key ids can be associated with each marker, to create "maps of trust".
Homepage: http://www.df7cb.de/projects/ircmarkers/
Version: 0.15-1build1
Section: universe/graphics