How to map StreetPilot III latitude/longitude on Google maps?

On Sun, 19 Aug 2007 10:35:40 -0400, Cooter wrote:


USA Maps has color aerials, where they are available. Mostly Urban areas.



--
Frank Tabor
Q:        Why did the chicken cross the road?
A:        To see his friend Gregory peck.

Q:        Why did the chicken cross the playground?
A:        To get to the other slide.

Also, on those web sites where you can choose topo and photo I have
noticed, at least for my area, (N. Calif.), that the placement of
survey markers on the topos, (the red lines township grids), as
compared to the locations where I have actually found them on the
photos, are off by as much as 100 feet or more??????

I discovered that for Colorado Springs (at least) the new high res
color photos are way off the older B &W photos by a couple hundred
meters or more,,,,, I think it was Terra Server???? I sent them
an email and never got a response,, I don't live there, I have
friends there, so I haven't bothered to check if they have been
corrected???? Any reason to offset them for privacy, or security,
etc., would be laughable!!!!

I've noticed that Globexplorer does a good job of matching the high
res photos to the old B & W but the topos are still off?????? I
haven't worked with USAphotos for a while,,,, there are now hi res
color photos for my area,, I'll have to try USAphotos again,,,,,
(as mentioned by Frank Tabor)!!!
SKM

Any reason to offset them for privacy, or security,

Well, if each image has a random offset, it makes it a real pain for
anyone that want to copy and re-reference the images.
...

Jean

jdmcox has no data. It fetches from TerraServer, which is probably no
better or worse than other mapping data. In my area, the main highway is
off by about 250 feet, and gradually narrows to being correct as it gets
near town. Near a friend's house, the street is shifted about 150 feet
from one side of the intersection to the other.

I see this in TerraServer, Streets and Trips, and Street Atlas, but not
Google Earth or Google Maps.

At one location in San Jose, CA, the topo, BW and color photos are off by
500 feet from each other.

I typically find that Google Earth is as close as I can discern with the
granularity of the photo. but that is also true of TerraServer in most
places.

The big problem with Terraserver is that the underlying USGS topo maps are
horribly out of date in many areas of the country. My aerial photo is from
1993, the topo map from 1974. Google Earth is September 2005, and very
accurate.

--
Clarence A Dold - Hidden Valley Lake, CA, USA GPS: 38.8,-122.5

Karen Wheless wrote:

If you put that on one line like this, N 32 49.230 W 115 07.061, and
enter it into google maps for a search, it will find a location for you.
It found a place north of I-8 between El Centro, CA and Yuma, AZ.

On the find result, it changed the location from degrees and decimal
minutes to degrees, minutes, and seconds and it changed the north to a
positive value and west to a negative value. Like this:

+32° 49' 13.80", -115° 7' 3.66"

I think google will process about any lat/long format that is logical.

Jack

--
Jack Erbes in Ellsworth, Maine, USA - jackerbes at adelphia dot net
(also receiving email at jacker at midmaine.com)