[OpenLayers-Users] Google + WMS = misalign

[Barend Köbben]

UPDATE: Now I get the Google layers, no idea what made it not work before
(google in my country on strike ? ;-)

As to your problem: Are you sure the transformation from whatever projection
your data was originally in to the sphericalMercator is done correctly by
whatever mapserving software you have? It looks like a typical datum-shift,
ie. the projected coordinates are transformed, but without the proper shift
from the datum of the original projection (whatever that is) to the datum of
sphericalMercator (WGS84). Such datum-shifts are typically up to a few 100
m...

Yours,
-- 
Barend Köbben
Senior Lecturer
University of Twente, Faculty of Geo-Information Science and
Earth Observation (ITC)
PO Box 6, 7500AA Enschede, The Netherlands
+31 (0)53 4874253



On 08-01-10 19:23, "Gregor at HostGIS" <gregor at hostgis.com> wrote:

> Barend Köbben wrote:
>> If I try your link, no Google layers come, only pink tiles....
>> In Firebug NET tab I see a couple of 404-NOT FOUNDs, eg for google.css.
> 
> I fixed the two CSS 404s. As to the lack of layers and the pinks, I
> dunno; they work for me. Maybe try it again, in case it was some
> transient overload of something somewhere?
> 
> --
> HostGIS, Open Source solutions for the global GIS community
> Greg Allensworth - SysAdmin, Programmer, GIS Person, Security
>     Network+   Server+   A+   Security+   Linux+
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> 
> "No one cares if you can back up < only if you can recover."

Faculty of Geo-Information Science and Earth Observation (ITC)
University of Twente

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