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Two severe problems


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Ok - just picked up my Legend today and bought her home to d/l some info from mapsource (Roads and Rec) and the first thing I did was put in the coordinates of a cache we wanted to find today and ran into two problems.

 

1) The map displayed my cache waypoint in the middle of the atlantic ocean (I checked the numbers three times)

 

2) After d/l the waypoint into my Legend the coordinates were completely wrong.

 

Anyone else run into this?

I'm stumped...

 

Almost forgot - If I input the coord manually it works great (found the cache no prob)

 

Cache is: Close to the edge

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Not just to cre8tor, but in general when people describe difficulties it would help if they were as specific as possible. Why not specify what coordinates were entered in Roads & Rec and what "wrong" ones appeared on the Legend? Doing so would let us see if there might be a problem with the format, sign, datum (unlikely for a large error), UTM vs. lat/long, or whatever.

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There's nothing wrong with those coordinates so it suggests the problem is at your end.

 

But without being a mind reader it's difficult knowing exactly what your doing in Mapsource.

 

Cheers, Kerry.

 

I never get lost icon_smile.gif everybody keeps telling me where to go icon_wink.gif

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The coordinates position you posted is in degrees decimal. Your Legend is probably set for Degrees Minutes.minutes decimal DD mm.mmm. When these don't match, you could be off a lot.

 

Make sure every things matches. Also the Datum should be the same.

 

The cache pages is set for DD MM>MMM and WGS84 Datum. Make sure you're set the same way.

 

Alan

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Alan2, the coordinates as written one could assume that but the numbers do match the orig DM.m positions but of course that's not the way they are written here.

 

What was meant and what was used, who knows but gradually we'll pick away at the information that might put some light on the possibilities.

 

The most position format differences between DM.m and DMS will throw things is about 1/2 a mile. The Atlantic ocean is a big place, just need to now which bit and how far.

 

Cheers, Kerry.

 

I never get lost icon_smile.gif everybody keeps telling me where to go icon_wink.gif

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quote:
Originally posted by cre8tor:

It's still out in the water, but at least it's in the ball park.

 

I really thought it would be more accurate. icon_frown.gif


 

First, the problem could be you're running Windows. A far superior Mac would solve the problem. icon_wink.gif Too bad they don't make Mapsource/Mapsend for Macs w/o Virtual PC.

 

Seriously, though, I wonder about the accuracy of some of the extra maps. My Mapsend seems to be a bit off in one day of trials. Shows me standing in the middle of a field instead of the street I'm on, and EPE shows 13 ft, not 300 it seems to be off. Using most current version too. Hmm...

 

~robert

(that's mrkablooey, not kablooey)

The Maryland Geocaching Society www.mdgps.net

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quote:
Originally posted by DiscoverGPS:

It's still out in the water, but at least it's in the ball park.

 

I really thought it would be more accurate. icon_frown.gif


 

So how blo.... far out in the water is it. How can anybody know just what is going on if all one gets is "it's still out in the Atlantic", now HOW FAR out in the Atlantic.

 

Cheers, Kerry.

 

I never get lost icon_smile.gif everybody keeps telling me where to go icon_wink.gif

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quote:
Originally posted by DiscoverGPS:

It's still out in the water, but at least it's in the ball park.


 

Odd, it shows up as being on the beach by about 175' in both MetroGuide (4.01) and Roads & Recreation when I entered it. Check the datum (should be WGS84) and the coordinates again.

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DiscoverGPS,

I entered the waypoint in my version of Metroguide and NA City Select and they both show as on land. Make sure you have the settings correct.

 

Go To: Edit/Preferences and click on "Position", make sure the "Grid" is set for Lat/Lon hddd°mm.mmm and "Datum" is set for WGS 84

 

I do know that Mapsource R&R uses some mighty old map data, but it should not be off to such a degree.

 

EDIT: I noticed your screenshot above and wanted to say that "Grid" is listed as "Position Format" in your version.

 

Hope you get your problem solved...Kar

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quote:
Originally posted by DiscoverGPS:

Peter,

 

You can see my settings in the screen shot a few posts back.


 

Your settings are probably fine now, but the latest screen shot you show is of MapSource with the detailed maps turned off - it's the MapSource equivalent of the Legend basemap (and similarly inaccurate).

 

In MapSource either hit Ctrl-G or go to the 'View' menu and click on "GPS Map Detail" so you see the detailed R&R maps (also check that "US Road & Rec - Continental US" is showing in the map selection box in the tool bar). If you still don't see lots more detail and accuracy try moving the slider under "Map Detail" on your Preferences menu more to the right.

 

[This message was edited by peter on July 22, 2003 at 02:41 AM.]

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Glad we can help. Now here's somethin you won't be able to correct even with all the settings OK.

 

You'll hunt a cache and find out that it's actually on the other side of the stream than R+R (or Topo) will indicate.

 

Anyone with more than one Mapsourse could see this at home.

 

Mark a waypoint in the middle of an intersection, let's say with R+R> Than switch to Topo - the waypont is no longer in the intersection but anywheres up to 100 feet away. Then switch to Metroguide (I have all three) and it'll shift again.

 

No the waypoint didn't actually shift. All the maps are wrong!

 

Yep. Mapmakers have been trying to get it right since maps were invented. None of them actually reflect the real world. There are slight difference from one map type to the other and from one section of the country to the other. It'll drive you nuts especially when you have to hike half a mile to the to a bridge to get you to the other side where the cache really is!

 

Good luck

Alan

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