Decode encoded strings

[felunka]

I wanted to create way points on routes (not stops) and can not find out how the string part is encoded and what it does.

Every way point look like this:

3 m 4
   1 m 2
      1 d 28.1957393
      2 d 57.2104923
   3 s 0x46c1b7e963d7a1d7:0x7d8ebf076b76f8e0

The first two values are obviously the lat and lon, but what is the string? For me these are just two 64bit hex numbers, but what do they do?

[david-r-edgar]

I have no idea what the string is. I imagine that it identifies the place name in one way or another? I'm guessing google looks it up in some db and returns the human-readable address it refers to. If this is what's happening, it would indeed be useful to know of some way to do this same lookup. But at the moment, I really have nothing more than these speculative ideas.