What mean 242 and 270. It is coordinate or what?

In LFS nodes are just different sectors in the path of the track.

They can be used to tell at which part of the track you currently are, and this is used for cruise servers to make street names.

Those 2 numbers are just used to check if a player is in a node between that range of 2 numbers which means that it is some street.

You can get node numbers from the CompCar packet when you receive an IS_MCI event

Ok PoVo , thank you but i can use only coordinates?
I want to make button who will apear in specific area
i will make polygon with
X/Y
X/Y coordinates when car is between there coordinates button will apear.. i dont need nodes right?
Because i dont know how to find the nodes

Coordinate-based system is better than a node-based one because it's much more flexible and works in open-config tracks. It's somewhat harder to program though if you want to use other than rectangular areas.

For a cruise server, to make "shops" you use the X/Y coordinates and not nodes.

But as MadCatX said, nodes are only useful for closed-config tracks and not open-config tracks.

I understand now. Thanks again guys i will use coordinates. This Threat now can be closed if someone want to close it.