I would rather see the image providers improve their image registration,
rather than focusing on how to manage the misregistration on the client
side. Perhaps there is a need for an 'OpenGeoreferencing.org' site,
where users could submit ground control points for features in their
local vicinity. If the data tile providers see that their image
registration efforts could be improved and are provided the gcp data to
do so, perhaps they would fix the registration issues.
just a thought...
Cranio wrote:
Tyler, that seems really a bad issue. Even if the functionality of the map is
not
affected by this shift, it's really annoying having that shift at a close
zoom of
an area.
Many have told me that it's impossible to put anywhere an offset to
compensate
the shift. I thought I could tamper with the Google projection defiinition
(ESPG:900913)
in the "espg" file, but I really don't know how and if it is possible.
Thanks a lot for your (and other) answers.
Tyler Erickson wrote:
In my neck of the woods, the current imagery displayed by Google Maps
and Google Earth imagery are shifted about 10-20m to the east. You can
see this when you compare the Google Maps streets data to the satellite
view (see the following URL). I have noticed the same thing when
uploading GPS data that I collected on the local trails that are visible
in the imagery.
So its possible that is nothing wrong with your WMS layers, but it is
that the Google Maps imagery in your area is not precisely registered...
--
Tyler A. Erickson, Ph.D.
Research Scientist
Michigan Tech Research Institute
3600 Green Court, Suite 100
Ann Arbor, MI 48105
[EMAIL PROTECTED]
www.mtri.org
www.michiganview.org
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