Maps, mashups and metadata:geospatial standards for access and retrieval

Chris Fleet, National Library of Scotland ,[object Object],[object Object]

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1843 mapping mashups (January 2009) http://www.programmableweb.com/tag/mapping

Everything 2.0 - 273 Geo 2.0 initiatives http://bobstumpel.blogspot.com/search/label/GEO 2.0

2. Open source spatial organisations The Open Geospatial Consortium (OGC) - an international consortium of companies, government agencies and universities who collaborate to develop publicly available interface specifications. eg. Web Map Service. ( www.opengeospatial.org ) The Open Source Geospatial Foundation, or OSGeo , is a not-for-profit organisation whose mission is to support and promote the collaborative development of open geospatial technologies and data. eg. Tile Map Service. OpenLayers (openlayers.org) (www.osgeo.org ) ,[object Object],[object Object]

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3. Standards - OGC’s Web Map Service WMS defines standard protocols for requesting geo-referenced mapping as a URL string: http://geo.nls.uk/wmsconnector/com.esri.wms.Esrimap?SERVICE=WMS &VERSION=1.1.1 &REQUEST=GetMap &LAYERS=Scotland_Small,OS_Quarter,Bart_Half,OS_Popular &STYLES= &SRS=EPSG:4326 &BBOX= -9.25805308169, 54.4515932002, -0.605194997975, 60.8904036625 &WIDTH=900 &HEIGHT=900 &FORMAT=image/png &reaspect=false ,[object Object],[object Object]

NLS WMS delivering 1930s historical mapping: (geo.nls.uk/os6inch/google.html)

Gazetteer for Scotland – mashup using NLS’ Web Map Service layers (www.geo.ed.ac.uk/scotgaz/gaztitle.html)

3. Standards - OSGeo’s Tile Map Service Much faster results by pre-creating tiles using the Tile Map Service ,[object Object],[object Object]

(www.maptiler.org/google-maps-coordinates-tile-bounds-projection/)

Tiles of Bartholomew half-inch and OS Popular edition 1930s mosaics http://geo.nls.uk/maps/small/7/62/88.png

3. Standards - OSGeo’s Tile Map Service Much faster results by pre-creating tiles using the Tile Map Service Format: server-and-url/zoom/x/y.png eg. http://geo.nls.uk/maps/11/1092/1397.png Javascript in Google maps file: var tilelayer = new GTileLayer(GCopyrightCollection(''), mapMinZoom, mapMaxZoom); var mercator = new GMercatorProjection(mapMaxZoom+1); tilelayer.getTileUrl = function(tile,zoom) { if ((zoom < mapMinZoom) || (zoom > mapMaxZoom)) { return "/img/none.png"; } var ymax = 1 << zoom; var y = ymax - tile.y -1; var tileBounds = new GLatLngBounds( mercator.fromPixelToLatLng( new GPoint( (tile.x)*256, (tile.y+1)*256 ) , zoom ), mercator.fromPixelToLatLng( new GPoint( (tile.x+1)*256, (tile.y)*256 ) , zoom ) ); if (mapBounds.intersects(tileBounds)) { return zoom+"/"+tile.x+"/"+y+".png"; } else { return "/img/none.png"; } } ,[object Object],[object Object]

MapTiler - open source overlay generator (www.maptiler.org/)

MapCruncher – map geo-referencing and tiling tool (research.microsoft.com/en-us/um/redmond/projects/mapcruncher/)

(geo.nls.uk/maps/glasgow1857/openlayers.html)

Landscape, Environment & History MSc course – Edinburgh University Google maps mashup with historical NLS maps of Edinburgh

(geo.nls.uk/maps/newpopular/google.html)

(geo.nls.uk/maps/lomond_gdal/googlemaps.html)

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USERS INFORMATION indexed database records - locations Gazetteers - eg. addresses - burghs placenames - parishes counties counties postcodes geo-referenced historical maps Maps - zoomable geographic Catalogue subject headings interface etc. / auto-geo-referencing (current and historical maps) Geographical Co-ordinates Eg. Points or Regions Geo-referenced search and retrieval using co-ordinates

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DIGMAP Project - Discovering our Past World with Digitised Maps eContentplus Project: 2005-8 (portal.digmap.eu/)

4. Retrieving geo-referenced mapping - WMS GetCapabilities eg. http://geo.nls.uk/wmsconnector/com.esri.wms.Esrimap/NLS?Request=GetCapabilities <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE WMT_MS_Capabilities SYSTEM "http://schemas.opengis.net/wms/1.1.1/WMS_MS_Capabilities.dtd"> <WMT_MS_Capabilities version="1.1.1"> <Service> <Name>OGC:WMS</Name> <Title>Web Map Service NLS</Title> <Abstract>ArcIMS 9.2.0 NLS Web Map Service</Abstract> <KeywordList> <Keyword>ArcIMS</Keyword> </KeywordList> <OnlineResource xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="http://193.130.15.4:80/wmsconnector/com.esri.wms.Esrimap/NLS?" xlink:type="simple"/> cont… ,[object Object],[object Object]

4. Retrieving geo-referenced mapping - WMS GetCapabilities <ContactInformation> <ContactPersonPrimary> <ContactPerson/> <ContactOrganization/> </ContactPersonPrimary> <ContactPosition/> <ContactAddress> <AddressType>postal</AddressType> <Address/> <City/> <StateOrProvince/> <PostCode/> <Country/> </ContactAddress> <ContactVoiceTelephone/> <ContactFacsimileTelephone/> <ContactElectronicMailAddress/> </ContactInformation> <Fees>none</Fees> cont… ,[object Object],[object Object]

4. Retrieving geo-referenced mapping - WMS GetCapabilities <Name>0</Name> <Title>Mini</Title> <SRS>EPSG:4326</SRS> <LatLonBoundingBox minx="-9.4974214273" miny="49.7666002469" maxx="3.6338914748" maxy="61.5821267789"/> </Layer> <Name>1</Name> <Title>Scotland_Small</Title> <SRS>EPSG:4326</SRS> <LatLonBoundingBox minx="-8.8991773696" miny="54.3197736752" maxx="-0.0406149313" maxy="61.0333698894"/> </Layer> cont… ,[object Object],[object Object]

4. Retrieving geo-referenced mapping – TMS tilemapresource.xml <?xml version="1.0" encoding="utf-8" ?> <TileMap version=" 1.0.0 " tilemapservice=" http://tms.osgeo.org/1.0.0 "> <Title> Ordnance Survey 1:1056 Town Plan of Edinburgh mosaic, 1876-7 </Title> <Abstract /> <SRS> EPSG:900913 </SRS> <BoundingBox minx=" 55.92116542336204 " miny=" -3.24989585974644 " maxx=" 55.99966056322133 " maxy=" -3.12835862947301 " /> <Origin x=" 55.92116542336204 " y=" -3.24989585974644 " /> <TileFormat width=" 256 " height=" 256 " mime-type=" image/png " extension=" png " /> <TileSets profile=" mercator "> <TileSet href=" 11 " units-per-pixel=" 292.45173230329510 " order=" 11 " /> <TileSet href=" 12 " units-per-pixel=" 584.90346460659021 " order=" 12 " /> <TileSet href=" 13 " units-per-pixel=" 1169.80692921318040 " order=" 13 " /> <TileSet href=" 14 " units-per-pixel=" 2339.61385842636080 " order=" 14 " /> <TileSet href=" 15 " units-per-pixel=" 4679.22771685272160 " order=" 15 " /> <TileSet href=" 16 " units-per-pixel=" 9358.45543370544330 " order=" 16 " /> <TileSet href=" 17 " units-per-pixel=" 18716.91086741088700 " order=" 17 " /> <TileSet href=" 18 " units-per-pixel=" 37433.82173482177300 " order=" 18 " /> <TileSet href=" 19 " units-per-pixel=" 74867.64346964354600 " order=" 19 " /> <TileSet href=" 20 " units-per-pixel=" 149735.28693928709000 " order=" 20 " /> </TileSets> </TileMap> ,[object Object],[object Object]

MapSynthesizer “a prototype user interface for browsing, searching, and discovering information in a world with millions of maps online” (research.microsoft.com/en-us/um/people/jelson/mapcruncher/mapsynthesizer/)

‘ Connecting Your Geographies’ (CYGnus) Project - “Getting beyond the silos”

‘ Connecting Your Geographies’ (CYGnus) Project - Technical Overview http://maps.google.com/maps?q=http://cygnus.geos.ed.ac.uk/cgi_bin/cygnus.pl?CRS=EN%26x=326760%26y=672785%26sg=400%26grm=1000%26hs=150%26rcahms=150%26nls=100%26par=100

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Geo-referenced map information - GeoTIFF coordinates WMS TMS Mashup Future standards ? Prioritise long-term geo-referenced map information for multiple outputs ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

NLS Historical Map Overlays (geo.nls.uk/maps)

Maps, mashups and metadata:geospatial standards for access and retrieval

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Maps, mashups and metadata:geospatial standards for access and retrieval