Jump to content

Question on waypoint ID format


claypigeon58
Followers 0

Recommended Posts

I just made a new cache that was given a waypoint ID GCG4PP. A while back I thought I read something about the last 4 digits having to be 0-9 or A-F (hex). Has that changed? I only noticed this because I tried to use a free "rate this cache" tool I ran across that evidently assumes the waypoint ID is in hex. Have we surpassed 65,000 caches?

Link to comment

quote:
Originally posted by Markwell:

Yep. They ran out of 4 digit hex. Elias hasn't released what the new coding scheme is other than a vague reference to base36 or some other base.


I'd swear that elias had put out a fairly good description of the new scheme, but it appears that that topic got lost in the forum conversion.... I found a few Markwells to it, but the links were broken. And it's not turning up in my searches now....

 

----------------------------------

MnGCA-button.gif

----------------------------------

"The number you have reached is imaginary, please rotate your phone 90 degrees and try again... <beeeeep>"

Link to comment

The 31 digits of the new waypoint scheme are:

"0123456789ABCDEFGHJKMNPQRTVWXYZ"

 

So, basically, for IDs < 65536, use the hexadecimal representation of the ID. For IDs >= 65536, use the base-31 representation of the ID + 411120 (the offset, in decimal, to make 65536 decimal == G000 base-31).

 

(And yes, I did get the digit list from Elias in the thread, wherever it is. icon_biggrin.gif The math was mine. icon_wink.gif)

 

[[[ ClayJar Networks ]]]

Home of Watcher downloads, Official Geocaching Chat, and the Geocache Rating System

Link to comment

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
Followers 0
×
×
  • Create New...