Hello, I have a set of (x, y) coordinates that plots the following map (https://postimg.cc/w3x8yvk3), and I want to use these (x, y) coordinates to convert that map into a ROS map (.pgm and .yalm files for ROS stage). In other words, I want my simulated robot to move in this ROS map.

I tried the following (netpbmfile), but it did not work since I got negative values on my set: https://answers.ros.org/question/393988/create-a-map-for-navigation-from-points/

(ps: i use python with ros noetic)