+# coding: utf-8
#
# Cookbook Name:: imagery
# Recipe:: gb_os_sv
mode "0644"
end
+cookbook_file "/srv/imagery/common/osstvw_process" do
+ source "osstvw_process"
+ owner "root"
+ group "root"
+ mode "0755"
+end
+
+cookbook_file "/srv/imagery/common/osstvw_make_diffs" do
+ source "osstvw_make_diffs"
+ owner "root"
+ group "root"
+ mode "0755"
+end
+
imagery_site "os.openstreetmap.org" do
- # aliases ["os.openstreetmap.org.uk"]
+ title "OpenStreetMap - Ordnance Survey OpenData - Street View"
+ aliases ["os.osm.org", "os.openstreetmap.org.uk"]
+ bbox [[49.85, -10.5], [58.75, 1.9]]
end
imagery_layer "gb_os_sv_2010_04" do
site "os.openstreetmap.org"
+ title "April 2010"
projection "EPSG:27700"
source "/data/imagery/gb/os-sv/ossv-2010-04-combined.vrt"
- copyright "Contains Ordnance Survey data © Crown copyright and database right 2010" # FIXME: Correct Copyright?
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2010" # FIXME: Correct Copyright?
background_colour "230 246 255" # OSSV Water Blue
- extension "png"
- palette "/srv/imagery/common/ossv-palette.txt"
- extent "5000 5000 660000 1225000"
+ extension "os_sv_png"
+ url_aliases ["/sv-2010-04"]
end
imagery_layer "gb_os_sv_2010_11" do
site "os.openstreetmap.org"
+ title "November 2010"
projection "EPSG:27700"
source "/data/imagery/gb/os-sv/ossv-2010-11-combined.vrt"
- copyright "Contains Ordnance Survey data © Crown copyright and database right 2010" # FIXME: Correct Copyright?
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2010" # FIXME: Correct Copyright?
background_colour "230 246 255" # OSSV Water Blue
- extension "png"
- palette "/srv/imagery/common/ossv-palette.txt"
- extent "5000 5000 660000 1225000"
+ extension "os_sv_png"
+ url_aliases ["/sv-2010-11"]
end
imagery_layer "gb_os_sv_2011_05" do
site "os.openstreetmap.org"
+ title "May 2011"
projection "EPSG:27700"
source "/data/imagery/gb/os-sv/ossv-2011-05-combined.vrt"
- copyright "Contains Ordnance Survey data © Crown copyright and database right 2011" # FIXME: Correct Copyright?
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2011" # FIXME: Correct Copyright?
background_colour "230 246 255" # OSSV Water Blue
- extension "png"
- palette "/srv/imagery/common/ossv-palette.txt"
- extent "5000 5000 660000 1225000"
+ extension "os_sv_png"
+ url_aliases ["/sv-2011-05"]
end
imagery_layer "gb_os_sv_2011_11" do
site "os.openstreetmap.org"
+ title "November 2011"
projection "EPSG:27700"
source "/data/imagery/gb/os-sv/ossv-2011-11-combined.vrt"
- copyright "Contains Ordnance Survey data © Crown copyright and database right 2011" # FIXME: Correct Copyright?
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2011" # FIXME: Correct Copyright?
background_colour "230 246 255" # OSSV Water Blue
- extension "png"
- palette "/srv/imagery/common/ossv-palette.txt"
- extent "5000 5000 660000 1225000"
+ extension "os_sv_png"
+ url_aliases ["/sv-2011-11"]
end
imagery_layer "gb_os_sv_2012_05" do
site "os.openstreetmap.org"
+ title "May 2012"
projection "EPSG:27700"
source "/data/imagery/gb/os-sv/ossv-2012-05-combined.vrt"
- copyright "Contains Ordnance Survey data © Crown copyright and database right 2012"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2012"
background_colour "230 246 255" # OSSV Water Blue
- extension "png"
- palette "/srv/imagery/common/ossv-palette.txt"
- extent "5000 5000 660000 1225000"
+ extension "os_sv_png"
+ url_aliases ["/sv-2012-05"]
end
imagery_layer "gb_os_sv_2012_11" do
site "os.openstreetmap.org"
+ title "November 2012"
projection "EPSG:27700"
source "/data/imagery/gb/os-sv/ossv-2012-11-combined.vrt"
- copyright "Contains Ordnance Survey data © Crown copyright and database right 2012"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2012"
background_colour "230 246 255" # OSSV Water Blue
- extension "png"
- palette "/srv/imagery/common/ossv-palette.txt"
- extent "5000 5000 660000 1225000"
+ extension "os_sv_png"
+ url_aliases ["/sv-2012-11"]
end
imagery_layer "gb_os_sv_2013_05" do
site "os.openstreetmap.org"
+ title "May 2013"
projection "EPSG:27700"
source "/data/imagery/gb/os-sv/ossv-2013-05-combined.vrt"
- copyright "Contains Ordnance Survey data © Crown copyright and database right 2013"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2013"
background_colour "230 246 255" # OSSV Water Blue
- extension "png"
- palette "/srv/imagery/common/ossv-palette.txt"
- extent "5000 5000 660000 1225000"
+ extension "os_sv_png"
+ url_aliases ["/sv-2013-05"]
end
imagery_layer "gb_os_sv_2013_11" do
site "os.openstreetmap.org"
+ title "November 2013"
projection "EPSG:27700"
source "/data/imagery/gb/os-sv/ossv-2013-11-combined.vrt"
- copyright "Contains Ordnance Survey data © Crown copyright and database right 2013"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2013"
background_colour "230 246 255" # OSSV Water Blue
- extension "png"
- palette "/srv/imagery/common/ossv-palette.txt"
- extent "5000 5000 660000 1225000"
+ extension "os_sv_png"
+ url_aliases ["/sv-2013-11"]
end
imagery_layer "gb_os_sv_2014_04" do
site "os.openstreetmap.org"
+ title "April 2014"
projection "EPSG:27700"
source "/data/imagery/gb/os-sv/ossv-2014-04-combined.vrt"
- copyright "Contains Ordnance Survey data © Crown copyright and database right 2014"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2014"
background_colour "230 246 255" # OSSV Water Blue
- extension "png"
- palette "/srv/imagery/common/ossv-palette.txt"
- extent "5000 5000 660000 1225000"
+ extension "os_sv_png"
+ url_aliases ["/sv-2014-04"]
end
imagery_layer "gb_os_sv_2014_10" do
site "os.openstreetmap.org"
+ title "October 2014"
projection "EPSG:27700"
source "/data/imagery/gb/os-sv/ossv-2014-10-combined.vrt"
- copyright "Contains Ordnance Survey data © Crown copyright and database right 2014"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2014"
background_colour "230 246 255" # OSSV Water Blue
- extension "png"
- palette "/srv/imagery/common/ossv-palette.txt"
- extent "5000 5000 660000 1225000"
+ extension "os_sv_png"
+ url_aliases ["/sv-2014-10"]
end
imagery_layer "gb_os_sv_2015_05" do
site "os.openstreetmap.org"
+ title "May 2015"
projection "EPSG:27700"
source "/data/imagery/gb/os-sv/ossv-2015-05-combined.vrt"
- copyright "Contains Ordnance Survey data © Crown copyright and database right 2015"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2015"
background_colour "230 246 255" # OSSV Water Blue
- extension "png"
- palette "/srv/imagery/common/ossv-palette.txt"
- extent "5000 5000 660000 1225000"
+ extension "os_sv_png"
+ url_aliases ["/sv-2015-05"]
end
imagery_layer "gb_os_sv_2015_11" do
site "os.openstreetmap.org"
+ title "November 2015"
projection "EPSG:27700"
source "/data/imagery/gb/os-sv/ossv-2015-11-combined.vrt"
- copyright "Contains Ordnance Survey data © Crown copyright and database right 2015"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2015"
background_colour "230 246 255" # OSSV Water Blue
- extension "png"
- palette "/srv/imagery/common/ossv-palette.txt"
- extent "5000 5000 660000 1225000"
+ extension "os_sv_png"
+ url_aliases ["/sv-2015-11"]
+end
+
+imagery_layer "gb_os_sv_2016_04" do
+ site "os.openstreetmap.org"
+ title "April 2016"
+ default_layer true
+ projection "EPSG:27700"
+ source "/data/imagery/gb/os-sv/ossv-2016-04-combined.vrt"
+ copyright "Contains Ordnance Survey data © Crown copyright and database right 2016"
+ background_colour "230 246 255" # OSSV Water Blue
+ extension "os_sv_png"
+ url_aliases ["/sv-2016-04", "/sv"] # Add "/sv" to current edition for backward compatibility
+end
+
+# ======= 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
+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
+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
+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
+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
+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
+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
+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"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2010-04-2014-04"]
+ overlay true
+end
+
+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"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2010-04-2014-10"]
+ overlay true
+end
+
+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"
+ extension "os_sv_diff_png"
+ url_aliases ["/sv-diff-2010-04-2015-05"]
+ 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
projects / chef.git / blobdiff