imagery_site "os.openstreetmap.org" do
title "OpenStreetMap - Ordnance Survey OpenData - Street View"
- aliases ["os.openstreetmap.org", "a.os.openstreetmap.org", "b.os.openstreetmap.org", "c.os.openstreetmap.org", "os.openstreetmap.org.uk", "a.os.openstreetmap.org.uk", "b.os.openstreetmap.org.uk", "c.os.openstreetmap.org.uk"]
+ aliases ["os.osm.org", "os.openstreetmap.org.uk"]
bbox [[49.85, -10.5], [58.75, 1.9]]
end
url_aliases ["/sv-2016-04", "/sv"] # Add "/sv" to current edition for backward compatibility
end
-# Diff layers
+# ======= Diff layers =======
+
imagery_layer "gb_os_sv_diff_2010_04_2010_11" do
site "os.openstreetmap.org"
+ title "Changes April 2010 to November 2010"
projection "EPSG:27700"
source "/data/imagery/gb/os-sv/ossv-diff-2010-04-2010-11-combined.vrt"
copyright "Contains Ordnance Survey data © Crown copyright and database right 2010"
extension "os_sv_diff_png"
url_aliases ["/sv-diff-2010-04-2010-11"]
overlay true
- revision 2
end
imagery_layer "gb_os_sv_diff_2010_04_2011_05" do
site "os.openstreetmap.org"
+ title "Changes April 2010 to May 2011"
projection "EPSG:27700"
source "/data/imagery/gb/os-sv/ossv-diff-2010-04-2011-05-combined.vrt"
copyright "Contains Ordnance Survey data © Crown copyright and database right 2011"
extension "os_sv_diff_png"
url_aliases ["/sv-diff-2010-04-2011-05"]
overlay true
- revision 2
end
imagery_layer "gb_os_sv_diff_2010_04_2011_11" do
site "os.openstreetmap.org"
+ title "Changes April 2010 to November 2011"
projection "EPSG:27700"
source "/data/imagery/gb/os-sv/ossv-diff-2010-04-2011-11-combined.vrt"
copyright "Contains Ordnance Survey data © Crown copyright and database right 2011"
extension "os_sv_diff_png"
url_aliases ["/sv-diff-2010-04-2011-11"]
overlay true
- revision 2
end
imagery_layer "gb_os_sv_diff_2010_04_2012_05" do
site "os.openstreetmap.org"
+ title "Changes April 2010 to May 2012"
projection "EPSG:27700"
source "/data/imagery/gb/os-sv/ossv-diff-2010-04-2012-05-combined.vrt"
copyright "Contains Ordnance Survey data © Crown copyright and database right 2012"
extension "os_sv_diff_png"
url_aliases ["/sv-diff-2010-04-2012-05"]
overlay true
- revision 2
end
imagery_layer "gb_os_sv_diff_2010_04_2012_11" do
site "os.openstreetmap.org"
+ title "Changes April 2010 to November 2012"
projection "EPSG:27700"
source "/data/imagery/gb/os-sv/ossv-diff-2010-04-2012-11-combined.vrt"
copyright "Contains Ordnance Survey data © Crown copyright and database right 2012"
extension "os_sv_diff_png"
url_aliases ["/sv-diff-2010-04-2012-11"]
overlay true
- revision 1
end
imagery_layer "gb_os_sv_diff_2010_04_2013_05" do
site "os.openstreetmap.org"
+ title "Changes April 2010 to May 2013"
projection "EPSG:27700"
source "/data/imagery/gb/os-sv/ossv-diff-2010-04-2013-05-combined.vrt"
copyright "Contains Ordnance Survey data © Crown copyright and database right 2013"
extension "os_sv_diff_png"
url_aliases ["/sv-diff-2010-04-2013-05"]
overlay true
- revision 1
end
imagery_layer "gb_os_sv_diff_2010_04_2013_11" do
site "os.openstreetmap.org"
+ title "Changes April 2010 to November 2013"
projection "EPSG:27700"
source "/data/imagery/gb/os-sv/ossv-diff-2010-04-2013-11-combined.vrt"
copyright "Contains Ordnance Survey data © Crown copyright and database right 2013"
extension "os_sv_diff_png"
url_aliases ["/sv-diff-2010-04-2013-11"]
overlay true
- revision 1
end
imagery_layer "gb_os_sv_diff_2010_04_2014_04" do
site "os.openstreetmap.org"
+ title "Changes April 2010 to April 2014"
projection "EPSG:27700"
source "/data/imagery/gb/os-sv/ossv-diff-2010-04-2014-04-combined.vrt"
copyright "Contains Ordnance Survey data © Crown copyright and database right 2014"
imagery_layer "gb_os_sv_diff_2010_04_2014_10" do
site "os.openstreetmap.org"
+ title "Changes April 2010 to October 2014"
projection "EPSG:27700"
source "/data/imagery/gb/os-sv/ossv-diff-2010-04-2014-10-combined.vrt"
copyright "Contains Ordnance Survey data © Crown copyright and database right 2014"
imagery_layer "gb_os_sv_diff_2010_04_2015_05" do
site "os.openstreetmap.org"
+ title "Changes April 2010 to May 2015"
projection "EPSG:27700"
source "/data/imagery/gb/os-sv/ossv-diff-2010-04-2015-05-combined.vrt"
copyright "Contains Ordnance Survey data © Crown copyright and database right 2015"
overlay true
end
-# imagery_layer "gb_os_sv_diff_2010_04_2015_11" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2010-04-2015-11-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2015"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2010-04-2015-11"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2010_04_2016_04" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2010-04-2016-04-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2016"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2010-04-2016-04"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2010_11_2011_05" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2010-11-2011-05-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2011"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2010-11-2011-05"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2010_11_2011_11" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2010-11-2011-11-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2011"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2010-11-2011-11"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2010_11_2012_05" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2010-11-2012-05-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2012"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2010-11-2012-05"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2010_11_2012_11" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2010-11-2012-11-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2012"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2010-11-2012-11"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2010_11_2013_05" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2010-11-2013-05-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2013"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2010-11-2013-05"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2010_11_2013_11" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2010-11-2013-11-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2013"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2010-11-2013-11"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2010_11_2014_04" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2010-11-2014-04-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2014"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2010-11-2014-04"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2010_11_2014_10" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2010-11-2014-10-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2014"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2010-11-2014-10"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2010_11_2015_05" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2010-11-2015-05-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2015"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2010-11-2015-05"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2010_11_2015_11" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2010-11-2015-11-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2015"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2010-11-2015-11"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2010_11_2016_04" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2010-11-2016-04-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2016"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2010-11-2016-04"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2011_05_2011_11" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2011-05-2011-11-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2011"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2011-05-2011-11"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2011_05_2012_05" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2011-05-2012-05-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2012"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2011-05-2012-05"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2011_05_2012_11" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2011-05-2012-11-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2012"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2011-05-2012-11"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2011_05_2013_05" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2011-05-2013-05-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2013"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2011-05-2013-05"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2011_05_2013_11" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2011-05-2013-11-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2013"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2011-05-2013-11"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2011_05_2014_04" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2011-05-2014-04-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2014"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2011-05-2014-04"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2011_05_2014_10" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2011-05-2014-10-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2014"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2011-05-2014-10"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2011_05_2015_05" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2011-05-2015-05-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2015"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2011-05-2015-05"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2011_05_2015_11" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2011-05-2015-11-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2015"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2011-05-2015-11"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2011_05_2016_04" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2011-05-2016-04-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2016"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2011-05-2016-04"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2011_11_2012_05" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2011-11-2012-05-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2012"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2011-11-2012-05"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2011_11_2012_11" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2011-11-2012-11-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2012"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2011-11-2012-11"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2011_11_2013_05" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2011-11-2013-05-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2013"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2011-11-2013-05"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2011_11_2013_11" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2011-11-2013-11-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2013"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2011-11-2013-11"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2011_11_2014_04" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2011-11-2014-04-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2014"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2011-11-2014-04"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2011_11_2014_10" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2011-11-2014-10-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2011"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2011-11-2014-10"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2011_11_2015_05" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2011-11-2015-05-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2015"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2011-11-2015-05"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2011_11_2015_11" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2011-11-2015-11-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2015"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2011-11-2015-11"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2011_11_2016_04" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2011-11-2016-04-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2016"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2011-11-2016-04"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2012_05_2012_11" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2012-05-2012-11-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2012"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2012-05-2012-11"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2012_05_2013_05" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2012-05-2013-05-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2013"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2012-05-2013-05"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2012_05_2013_11" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2012-05-2013-11-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2013"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2012-05-2013-11"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2012_05_2014_04" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2012-05-2014-04-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2014"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2012-05-2014-04"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2012_05_2014_10" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2012-05-2014-10-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2014"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2012-05-2014-10"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2012_05_2015_05" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2012-05-2015-05-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2015"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2012-05-2015-05"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2012_05_2015_11" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2012-05-2015-11-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2015"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2012-05-2015-11"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2012_05_2016_04" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2012-05-2016-04-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2016"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2012-05-2016-04"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2012_11_2013_05" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2012-11-2013-05-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2013"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2012-11-2013-05"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2012_11_2013_11" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2012-11-2013-11-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2013"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2012-11-2013-11"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2012_11_2014_04" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2012-11-2014-04-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2014"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2012-11-2014-04"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2012_11_2014_10" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2012-11-2014-10-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2014"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2012-11-2014-10"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2012_11_2015_05" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2012-11-2015-05-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2015"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2012-11-2015-05"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2012_11_2015_11" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2012-11-2015-11-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2015"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2012-11-2015-11"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2012_11_2016_04" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2012-11-2016-04-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2016"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2012-11-2016-04"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2013_05_2013_11" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2013-05-2013-11-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2013"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2013-05-2013-11"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2013_05_2014_04" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2013-05-2014-04-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2014"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2013-05-2014-04"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2013_05_2014_10" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2013-05-2014-10-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2014"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2013-05-2014-10"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2013_05_2015_05" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2013-05-2015-05-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2015"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2013-05-2015-05"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2013_05_2015_11" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2013-05-2015-11-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2015"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2013-05-2015-11"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2013_05_2016_04" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2013-05-2016-04-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2016"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2013-05-2016-04"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2013_11_2014_04" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2013-11-2014-04-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2014"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2013-11-2014-04"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2013_11_2014_10" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2013-11-2014-10-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2014"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2013-11-2014-10"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2013_11_2015_05" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2013-11-2015-05-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2015"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2013-11-2015-05"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2013_11_2015_11" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2013-11-2015-11-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2015"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2013-11-2015-11"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2013_11_2016_04" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2013-11-2016-04-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2016"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2013-11-2016-04"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2014_04_2014_10" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2014-04-2014-10-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2014"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2014-04-2014-10"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2014_04_2015_05" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2014-04-2015-05-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2015"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2014-04-2015-05"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2014_04_2015_11" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2014-04-2015-11-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2015"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2014-04-2015-11"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2014_04_2016_04" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2014-04-2016-04-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2016"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2014-04-2016-04"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2014_10_2015_05" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2014-10-2015-05-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2015"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2014-10-2015-05"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2014_10_2015_11" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2014-10-2015-11-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2015"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2014-10-2015-11"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2014_10_2016_04" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2014-10-2016-04-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2016"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2014-10-2016-04"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2015_05_2015_11" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2015-05-2015-11-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2015"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2015-05-2015-11"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2015_05_2016_04" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2015-05-2016-04-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2016"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2015-05-2016-04"]
-# overlay true
-# end
-#
-# imagery_layer "gb_os_sv_diff_2015_11_2016_04" do
-# site "os.openstreetmap.org"
-# projection "EPSG:27700"
-# source "/data/imagery/gb/os-sv/ossv-diff-2015-11-2016-04-combined.vrt"
-# copyright "Contains Ordnance Survey data © Crown copyright and database right 2016"
-# extension "os_sv_diff_png"
-# url_aliases ["/sv-diff-2015-11-2016-04"]
-# overlay true
-# end
-#
+imagery_layer "gb_os_sv_diff_2010_04_2015_11" do
+ site "os.openstreetmap.org"
+ title "Changes April 2010 to November 2015"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2010-04-2015-11-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2015"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2010-04-2015-11"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2010_04_2016_04" do
+ site "os.openstreetmap.org"
+ title "Changes April 2010 to April 2016"
+ default_layer true
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2010-04-2016-04-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2016"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2010-04-2016-04"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2010_11_2011_05" do
+ site "os.openstreetmap.org"
+ title "Changes November 2010 to May 2011"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2010-11-2011-05-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2011"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2010-11-2011-05"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2010_11_2011_11" do
+ site "os.openstreetmap.org"
+ title "Changes November 2010 to November 2011"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2010-11-2011-11-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2011"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2010-11-2011-11"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2010_11_2012_05" do
+ site "os.openstreetmap.org"
+ title "Changes November 2010 to May 2012"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2010-11-2012-05-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2012"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2010-11-2012-05"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2010_11_2012_11" do
+ site "os.openstreetmap.org"
+ title "Changes November 2010 to November 2012"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2010-11-2012-11-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2012"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2010-11-2012-11"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2010_11_2013_05" do
+ site "os.openstreetmap.org"
+ title "Changes November 2010 to May 2013"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2010-11-2013-05-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2013"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2010-11-2013-05"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2010_11_2013_11" do
+ site "os.openstreetmap.org"
+ title "Changes November 2010 to November 2013"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2010-11-2013-11-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2013"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2010-11-2013-11"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2010_11_2014_04" do
+ site "os.openstreetmap.org"
+ title "Changes November 2010 to April 2014"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2010-11-2014-04-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2014"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2010-11-2014-04"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2010_11_2014_10" do
+ site "os.openstreetmap.org"
+ title "Changes November 2010 to October 2014"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2010-11-2014-10-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2014"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2010-11-2014-10"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2010_11_2015_05" do
+ site "os.openstreetmap.org"
+ title "Changes November 2010 to May 2015"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2010-11-2015-05-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2015"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2010-11-2015-05"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2010_11_2015_11" do
+ site "os.openstreetmap.org"
+ title "Changes November 2010 to November 2015"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2010-11-2015-11-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2015"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2010-11-2015-11"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2010_11_2016_04" do
+ site "os.openstreetmap.org"
+ title "Changes November 2010 to April 2016"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2010-11-2016-04-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2016"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2010-11-2016-04"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2011_05_2011_11" do
+ site "os.openstreetmap.org"
+ title "Changes May 2011 to November 2011"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2011-05-2011-11-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2011"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2011-05-2011-11"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2011_05_2012_05" do
+ site "os.openstreetmap.org"
+ title "Changes May 2011 to May 2012"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2011-05-2012-05-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2012"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2011-05-2012-05"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2011_05_2012_11" do
+ site "os.openstreetmap.org"
+ title "Changes May 2011 to November 2012"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2011-05-2012-11-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2012"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2011-05-2012-11"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2011_05_2013_05" do
+ site "os.openstreetmap.org"
+ title "Changes May 2011 to May 2013"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2011-05-2013-05-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2013"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2011-05-2013-05"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2011_05_2013_11" do
+ site "os.openstreetmap.org"
+ title "Changes May 2011 to November 2013"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2011-05-2013-11-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2013"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2011-05-2013-11"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2011_05_2014_04" do
+ site "os.openstreetmap.org"
+ title "Changes May 2011 to April 2014"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2011-05-2014-04-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2014"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2011-05-2014-04"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2011_05_2014_10" do
+ site "os.openstreetmap.org"
+ title "Changes May 2011 to October 2014"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2011-05-2014-10-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2014"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2011-05-2014-10"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2011_05_2015_05" do
+ site "os.openstreetmap.org"
+ title "Changes May 2011 to May 2015"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2011-05-2015-05-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2015"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2011-05-2015-05"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2011_05_2015_11" do
+ site "os.openstreetmap.org"
+ title "Changes May 2011 to November 2015"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2011-05-2015-11-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2015"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2011-05-2015-11"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2011_05_2016_04" do
+ site "os.openstreetmap.org"
+ title "Changes May 2011 to April 2016"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2011-05-2016-04-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2016"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2011-05-2016-04"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2011_11_2012_05" do
+ site "os.openstreetmap.org"
+ title "Changes November 2011 to May 2012"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2011-11-2012-05-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2012"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2011-11-2012-05"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2011_11_2012_11" do
+ site "os.openstreetmap.org"
+ title "Changes November 2011 to November 2012"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2011-11-2012-11-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2012"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2011-11-2012-11"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2011_11_2013_05" do
+ site "os.openstreetmap.org"
+ title "Changes November 2011 to May 2013"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2011-11-2013-05-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2013"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2011-11-2013-05"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2011_11_2013_11" do
+ site "os.openstreetmap.org"
+ title "Changes November 2011 to November 2013"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2011-11-2013-11-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2013"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2011-11-2013-11"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2011_11_2014_04" do
+ site "os.openstreetmap.org"
+ title "Changes November 2011 to April 2014"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2011-11-2014-04-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2014"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2011-11-2014-04"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2011_11_2014_10" do
+ site "os.openstreetmap.org"
+ title "Changes November 2011 to October 2014"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2011-11-2014-10-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2011"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2011-11-2014-10"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2011_11_2015_05" do
+ site "os.openstreetmap.org"
+ title "Changes November 2011 to May 2015"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2011-11-2015-05-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2015"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2011-11-2015-05"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2011_11_2015_11" do
+ site "os.openstreetmap.org"
+ title "Changes November 2011 to November 2015"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2011-11-2015-11-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2015"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2011-11-2015-11"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2011_11_2016_04" do
+ site "os.openstreetmap.org"
+ title "Changes November 2011 to April 2016"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2011-11-2016-04-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2016"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2011-11-2016-04"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2012_05_2012_11" do
+ site "os.openstreetmap.org"
+ title "Changes May 2012 to November 2012"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2012-05-2012-11-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2012"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2012-05-2012-11"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2012_05_2013_05" do
+ site "os.openstreetmap.org"
+ title "Changes May 2012 to May 2013"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2012-05-2013-05-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2013"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2012-05-2013-05"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2012_05_2013_11" do
+ site "os.openstreetmap.org"
+ title "Changes May 2012 to November 2013"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2012-05-2013-11-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2013"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2012-05-2013-11"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2012_05_2014_04" do
+ site "os.openstreetmap.org"
+ title "Changes May 2012 to April 2014"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2012-05-2014-04-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2014"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2012-05-2014-04"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2012_05_2014_10" do
+ site "os.openstreetmap.org"
+ title "Changes May 2012 to October 2014"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2012-05-2014-10-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2014"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2012-05-2014-10"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2012_05_2015_05" do
+ site "os.openstreetmap.org"
+ title "Changes May 2012 to May 2015"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2012-05-2015-05-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2015"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2012-05-2015-05"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2012_05_2015_11" do
+ site "os.openstreetmap.org"
+ title "Changes May 2012 to November 2015"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2012-05-2015-11-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2015"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2012-05-2015-11"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2012_05_2016_04" do
+ site "os.openstreetmap.org"
+ title "Changes May 2012 to April 2016"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2012-05-2016-04-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2016"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2012-05-2016-04"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2012_11_2013_05" do
+ site "os.openstreetmap.org"
+ title "Changes November 2012 to May 2013"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2012-11-2013-05-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2013"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2012-11-2013-05"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2012_11_2013_11" do
+ site "os.openstreetmap.org"
+ title "Changes November 2012 to November 2013"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2012-11-2013-11-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2013"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2012-11-2013-11"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2012_11_2014_04" do
+ site "os.openstreetmap.org"
+ title "Changes November 2012 to April 2014"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2012-11-2014-04-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2014"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2012-11-2014-04"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2012_11_2014_10" do
+ site "os.openstreetmap.org"
+ title "Changes November 2012 to October 2014"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2012-11-2014-10-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2014"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2012-11-2014-10"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2012_11_2015_05" do
+ site "os.openstreetmap.org"
+ title "Changes November 2012 to May 2015"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2012-11-2015-05-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2015"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2012-11-2015-05"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2012_11_2015_11" do
+ site "os.openstreetmap.org"
+ title "Changes November 2012 to November 2015"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2012-11-2015-11-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2015"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2012-11-2015-11"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2012_11_2016_04" do
+ site "os.openstreetmap.org"
+ title "Changes November 2012 to April 2016"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2012-11-2016-04-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2016"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2012-11-2016-04"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2013_05_2013_11" do
+ site "os.openstreetmap.org"
+ title "Changes May 2013 to November 2013"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2013-05-2013-11-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2013"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2013-05-2013-11"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2013_05_2014_04" do
+ site "os.openstreetmap.org"
+ title "Changes May 2013 to April 2014"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2013-05-2014-04-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2014"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2013-05-2014-04"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2013_05_2014_10" do
+ site "os.openstreetmap.org"
+ title "Changes May 2013 to October 2014"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2013-05-2014-10-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2014"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2013-05-2014-10"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2013_05_2015_05" do
+ site "os.openstreetmap.org"
+ title "Changes May 2013 to May 2015"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2013-05-2015-05-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2015"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2013-05-2015-05"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2013_05_2015_11" do
+ site "os.openstreetmap.org"
+ title "Changes May 2013 to November 2015"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2013-05-2015-11-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2015"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2013-05-2015-11"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2013_05_2016_04" do
+ site "os.openstreetmap.org"
+ title "Changes May 2013 to April 2016"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2013-05-2016-04-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2016"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2013-05-2016-04"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2013_11_2014_04" do
+ site "os.openstreetmap.org"
+ title "Changes November 2013 to April 2014"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2013-11-2014-04-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2014"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2013-11-2014-04"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2013_11_2014_10" do
+ site "os.openstreetmap.org"
+ title "Changes November 2013 to October 2014"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2013-11-2014-10-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2014"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2013-11-2014-10"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2013_11_2015_05" do
+ site "os.openstreetmap.org"
+ title "Changes November 2013 to May 2015"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2013-11-2015-05-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2015"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2013-11-2015-05"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2013_11_2015_11" do
+ site "os.openstreetmap.org"
+ title "Changes November 2013 to November 2015"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2013-11-2015-11-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2015"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2013-11-2015-11"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2013_11_2016_04" do
+ site "os.openstreetmap.org"
+ title "Changes November 2013 to April 2016"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2013-11-2016-04-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2016"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2013-11-2016-04"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2014_04_2014_10" do
+ site "os.openstreetmap.org"
+ title "Changes April 2014 to October 2014"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2014-04-2014-10-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2014"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2014-04-2014-10"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2014_04_2015_05" do
+ site "os.openstreetmap.org"
+ title "Changes April 2014 to May 2015"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2014-04-2015-05-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2015"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2014-04-2015-05"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2014_04_2015_11" do
+ site "os.openstreetmap.org"
+ title "Changes April 2014 to November 2015"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2014-04-2015-11-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2015"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2014-04-2015-11"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2014_04_2016_04" do
+ site "os.openstreetmap.org"
+ title "Changes April 2014 to April 2016"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2014-04-2016-04-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2016"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2014-04-2016-04"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2014_10_2015_05" do
+ site "os.openstreetmap.org"
+ title "Changes October 2014 to May 2015"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2014-10-2015-05-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2015"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2014-10-2015-05"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2014_10_2015_11" do
+ site "os.openstreetmap.org"
+ title "Changes October 2014 to November 2015"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2014-10-2015-11-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2015"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2014-10-2015-11"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2014_10_2016_04" do
+ site "os.openstreetmap.org"
+ title "Changes October 2014 to April 2016"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2014-10-2016-04-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2016"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2014-10-2016-04"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2015_05_2015_11" do
+ site "os.openstreetmap.org"
+ title "Changes May 2015 to November 2015"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2015-05-2015-11-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2015"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2015-05-2015-11"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2015_05_2016_04" do
+ site "os.openstreetmap.org"
+ title "Changes May 2015 to April 2016"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2015-05-2016-04-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2016"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2015-05-2016-04"]
+ overlay true
+end
+
+imagery_layer "gb_os_sv_diff_2015_11_2016_04" do
+ site "os.openstreetmap.org"
+ title "Changes November 2015 to April 2016"
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-diff-2015-11-2016-04-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2016"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2015-11-2016-04"]
+ overlay true
+end