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How are Waypoint Names Generated?


Guest Lou C

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Guest Lou C

This might be a question for the moderator, but is there some algorithm for generating the names of waypoints when the cache is created? I know the GC part means GeoCache, but how are the numbers and letters that follow it generated? It looks almost random but I thought I would ask.

 

Lou

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Guest Moun10Bike

It's the number of the cache (dteremined by order posted) in hexadecimal format. Hexadecimal is used because a lot of GPSRs only allow for 6-letter waypoint names. Two of these spaces are used up by "GC," leaving 4 for unique identification. Hexadecimal allows for 65,536 unique identifers in these 4 spaces rather than the mere 10,000 that base 10 would allow.

 

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Jon (Moun10Bike)

26H/65F/3C/2S/2X

N 47° 36.649', W 122° 3.616'

www.switchbacks.com/geocaching.html

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Guest Lou C

Thanks Jon. Gosh, and here all this time I never knew it was hex. Hexadecimal is my second language and I never even thought of that. I probably missed the same discussion on the other thread because it was titled "Help with Coordinates". Thanks again.

 

Lou

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