Yes that was the issue. Thank you very much for your help.
Regards,
Michael.
From: Tom Chadwin [via OSGeo.org]
[mailto:ml-node+s1560n5160283...@n6.nabble.com]
Sent: 05 September 2014 10:07
To: Michael Tang
Subject: Re: WMS layer offset ~200m SW of true location
We had exactly the same issue when building a Leaflet map from GeoServer
layers. The issue proved to be an incorrect definition of ESPG:27700:
+proj=tmerc +lat_0=49 +lon_0=-2 +k=0.9996012717 +x_0=400000 +y_0=-100000
+ellps=airy +datum=OSGB36 +units=m +no_defs
What we have now is:
+proj=tmerc +lat_0=49 +lon_0=-2 +k=0.9996012717 +x_0=400000 +y_0=-100000
+ellps=airy +towgs84=446.448,-125.157,542.06,0.15,0.247,0.842,-20.489
+units=m +no_defs
Could this be your issue?
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