Sep , 2006 v FME Worldwide User Conference - Vancouver David Eagle – Consultant / Trainer Dotted Eyes Ltd, UK Production of Ordnance Survey Meridian 2

OS Meridian 2 2  Authorized Reseller based in Birmingham, England  Established in 1989; now 28 people  Working with Safe Software for 10 years  UK distributor of ‘all things’ FME!  Stock and sell Safe Software products  FME training – two-day course  Consultancy projects using FME  Support by phone &  Embed FME Objects into our own software products Who are Dotted Eyes?

OS Meridian 2 3 Strategic Partnerships  MapInfo  Premier partner  Oracle  Partner specialising in Spatial and Locator applications  Ordnance Survey  Platinum partner; supplier of consultancy and software  Safe Software (FME and SpatialDirect)  Reseller & OEM using FME Objects

OS Meridian 2 4 What Else Do We Do?  Development and consultancy services in GI  Rich internet applications – ResponseMX  AJAX or Flash for cross-browser compatibility  Java EE n-tier architecture on the server  Developer framework with sample applications  Used in banking, local and central government, emergency services, crime and disorder reduction 

OS Meridian 2 5 What is Meridian 2?  Ordnance Survey vector topography products:  OS MasterMap formerly Land-Line (1:1,250 & 1:2,500)  Meridian 2 (about 1:50,000 or 1:100,000)  Strategi (1:250,000)  Mini-Scale (1:1,000,000)  Digital representation of Great Britain  Road, rail, coast, hydrology, woodland, positioned text  Admin boundaries, developed land use areas (DLUA)  Topologically structured polygons, polylines & points geometry with positioned text features  Supplied as tiles in NTF and GIS / CAD formats

OS Meridian 2 6 What’s Our Role?  We created the product in the year 2000  Contributed to discussions about content and form  Final decisions on specification rested with OS  Finished roads data supplied by Ordnance Survey  We’ve produced annual ‘refreshes’ since then  The content is entirely renewed every year  Well accepted by the market, so specification changes are now resisted  Conflation of data from a variety of sources  Strategically the process is a stop-gap measure  Long-term aim is to use automated generalisation  Major challenge, as the factor of scale change is 20x

OS Meridian 2 7 Derived From: Meridian 2 Land-Line Railway & stations Boundary-Line County, District, Unitary OSCAR Route-Manager Roads Strategi DLUA, Woodland, Hydrology, Text LandForm PANORAMA Coastline  Several OS products are the source for Meridian 2

OS Meridian 2 8 Roads Railway & stations Coast Admin boundaries DLUA Hydrology Woodland Text OS Hierarchy of Feature Type Positional Quality Important Less Important

OS Meridian 2 9 The Annual Refresh of Meridian 2 1. Compare updated sources against the mid-scale database we maintain 2. Apply changes to meet specification 3. Quality Assurance on edited data 4. Build the topological structure of nodes, edges and faces 5. Write NTF (National Transfer Format) 6. Convert to MID/MIF (including styling), ESRI Shape and DXF

OS Meridian 2 10 History  No FME workbench available in 2000  Semantic mapping files were created  Workflow was imported when workbench became available  Subsequently enhanced and made more efficient  Refined each year with experience

OS Meridian 2 11 QA with FME  Example rule 1…  Polygon layers must not overlap each other  Edges can snap  FME finds overlaps  Woodland extent is clipped  Coastline overlap is resolved Woodland Coast DLUA

OS Meridian 2 12  Example rule 2…  New connectivity nodes if new rivers are captured  New nodes introduced where rivers join coast QA with FME

OS Meridian 2 13 NTF Preparation Lake.tab Lake Node.tab Lake Link.tab Lake Seed.tab (Lake Tiled.tab)  Create link and node network

OS Meridian 2 14 NTF to supply formats  Translate from NTF to:  DXF  MID/MIF  ESRI SHAPE  Using TranspOSe  Includes embeded FME technology

OS Meridian 2 15 Meridian 2 Transformers Hall of Fame 3. PolygonBuilder to construct features 2. LineOnAreaOverlayer to produce neat lines Input: Tile lines & Lake polygons 1. Tester – Simple yet effective!

OS Meridian 2 16 Summary  We use FME for format translation, but…  It saves us time and money in the QA routines that it performs on project data  Ordnance Survey customers receive a product of high quality and integrity  Dotted Eyes customers efficiently and quickly manage data from National Mapping Agencies, with FME Objects offering many output formats