On-line Maps and coordinates

[Guest mrmaxx]

I'm puzzled. I've only been to a few caches and today I figured out that I can get mapblast to give me directions to a cache. However, the coordinates given to MapBlast don't seem to match the coordinates for the cache itself. Not by a long shot!

 

I give you the example of "Pilcher's Pond" cache -- The coordinates for it ar at N34 36.823 by W 085 04.342 (WGS-84). However, MapBlast gets those coordinates as 34.613717 by -85.072367 and that doesn't appear to match up at all!

 

Would someone explain this apparent inconsistency to me????

 

Thanks... :-)

 

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

-----BEGIN GEEK CODE BLOCK-----

Version: 3.12

GCM d- s+:+ a C+++ UL++ P+ L+++ E---- W+ N++ o K- w--

O-- M- V-- PS+ PE Y+ PGP+ t+ 5++ X+ R tv b++ DI+++ D++

G e++ h-- r++ y**

------END GEEK CODE BLOCK------

[Guest bob_renner]

Check out this other thread on the same topic

http://forums.Groundspeak.com/ubb/Forum1/HTML/000310.html

 

Bob

[Guest arffer]

mrmaxx,

 

There are 4 ways to express latitude/longitude in degrees:

 

1) deg min sec (most basic)

2) deg min.mm (seconds converted to decimal minutes to 2 decimals)

3) deg min.mmm (seconds converted to decimal minutes to 3 decimals)

4) deg.ddddd (minutes and seconds converted to decimal degrees to 5 decimals)

 

All mean the very same location. The coordinates express on the cache page are in deg min.mmm (# 3 above), but mapblast uses decimal degrees (# 4 above). So its the same place just expressed differently.

 

Here's the math: 34° 36.823 minutes:

36.823 / 60 = .613717 so 34°.613717

 

Get it?

[Guest mrmaxx]

quote:

---

Originally posted by arffer:

mrmaxx,

 

There are 4 ways to express latitude/longitude in degrees:

 

1) deg min sec (most basic)

2) deg min.mm (seconds converted to decimal minutes to 2 decimals)

3) deg min.mmm (seconds converted to decimal minutes to 3 decimals)

4) deg.ddddd (minutes and seconds converted to decimal degrees to 5 decimals)

 

All mean the very same location. The coordinates express on the cache page are in deg min.mmm (# 3 above), but mapblast uses decimal degrees (# 4 above). So its the same place just expressed differently.

 

Here's the math: 34° 36.823 minutes:

36.823 / 60 = .613717 so 34°.613717

 

Get it?

---

 

Ahh...thanks. I appreciate it. I was getting paranoid thinking that MapBlast was trying to point me in the wrong direction. :-) Basically I was just REALLY confused by all that. :-)

[Guest JoeDoe]

Don't feel bad...found the hard way that Mapsend does the same thing.....

[Guest arffer]

You are extremely welcome. Always glad to help in any way I can. Figure its the least I can do considering how much fun I gain from this site!