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The document discusses how to access and use Ordnance Survey Building Height Attribute data from Digimap in ArcGIS Pro. It explains that the BHA data provides multiple height values for buildings and has been combined with OS MasterMap Topography data into a file geodatabase for easier use in ArcGIS Pro. Steps are provided on how to download the data, convert the map to 3D, extrude buildings based on height attributes, add additional backdrop data like terrain models, and visualize the 3D buildings.

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Using OS Building Height Attribute data from Digimap in ArcGIS Pro Guy McGarva Ian Holmes EDINA Geosupport
Contents - What is Digimap? - What are BHA data from Ordnance Survey? - How can you access it through Digimap? - What have we done to it? - How can I use it in ArcGIS Pro? - 3D visualisation in ArcGIS Pro
Who is EDINA? delivers online services and tools to UK Higher and Further Education Based at Supported by “enhance the productivity of research, learning and teaching in UK higher and further education” We aim to
Geo Services at EDINA
The Digimap Service - Overview • An online mapping and data delivery service • Originally built to provide access to Ordnance Survey (GB) maps and data - a 'virtual map library’ • Content extended to include: - Historic OS maps, - British Geological Survey data - Marine maps and data (UKHO via Seazone) - Environment data (from CEH) • Subscription service available to all Higher and Further Education Institutions in UK with approx. 50,000 active users http://digimap.edina.ac.uk/
Digimap – Accessing the data Digimap provides access to data in 2 main ways: 1) Roam online mapping application: includes annotation and printing 2) Data Download application: use in your desktop GIS/CAD in various formats
Data Download: OS Data Products Available OS Licensed Products - OS MasterMap • Topogrpahy • ITN • Sites Layer • Urban Paths • BHA - VectorMap Local - 25K Raster - 50K Raster - Terrain 5 - PointX POI OS Open Products – All OS Open Data New Formats – Creating new formats for some products such as DWG for VML and File Geodatabase for OS MasterMap to make them easier to use +
What are BHA? • BHA are Building Height Attributes from Ordnance Survey • Released as Alpha product in 2014 • Provide multiple values for heights of buildings (both absolute and relative) • Covers most major cities and towns (but not all) • Supplied by Ordnance Survey as 5km tiles in CSV format • Linked to OS MasterMap Topography Layer (i.e. building footprints) by TOID
Using BHA CSV and OS MasterMap To start with we created a version of the BHA CSV with a modified TOID that could be joined more easily Need to Join the data on TOID
Using data from OS directly However… - Lot of steps - Slow when dealing with large datasets - Needed to use a schema.ini file to load the CSV correctly - Required ArcGlobe or ArcScene to visualise the 3D buildings
So what have we done? So, to make is easier to use we have: - Created a File Geodatabase version using FME that contains the Building geometries from OS MasterMap Topography Layer combined with the BHA data. - Used ArcGIS Pro to visualise the data.
Using File Geodatabase BHA in ArcGIS Pro • Download BHA File Geodatabase from Digimap • Open BHA File Geodatabase • Convert map to 3D • Extrude buildings • More advanced steps – Add background data – Add in more detailed Terrain 5 data – Set up symbology and representation – Add in other vector data (e.g. Trees, POI) Now the steps are:
First step is to download all the data For Example: - Building Height Attributes - MM Topography Layer - OS Terrain 5 DTM - VectorMap Local Raster - PointX POI Download in File Geodatbase, Shape or other suitable format
Load Data in ArcGIS Pro Add data… (same as in ArcGIS)
Convert to 3D Convert map to 3D (on the View tab) Then drag vector layers to the 3D Layer
Extrude to 3D 1. Set the Ground Extrude the building to Max Height using attribute [relhmax]
Add Backdrop Data Using VML Raster data from Digimap
Add More Detailed Terrain • By default ArcGIS Pro will use a global terrain dataset • To use more accurate terrain, download the OS Terrain 5 dataset from Digimap • Add Preset  Ground • Select downloaded .ASC files
Add Representation Can do simple solid colours or use more complicated ‘Procedural Symbols’
Use Procedural Rules Can either use ones that come with ArcGIS Pro or import ones from City Engine • Using built in “International Building” Procedural Rule • Set [TotalHeight] to be calculated from the [relhmax] attribute • Building type set to “Office”
Add Trees and POI Add “Realistic Trees” for tree features from OS MasterMap and 3D Symbols for features from PointX POI
Add Imagery background Using Esri Imagery Basemap Also set background colour for sky and Illumination for shading
Caution! • Remember projections! • If you overlay OS data on one of the Esri Basemaps you must use a Transformation (preferably OSTN02) • In ArcGIS Pro this is done by selecting the Properties of the Map and then Transformation
The Final Result
Support If you need any help with Digimap or using data from Digimap get in touch with EDINA Geosupport. on the stand outside edina@ed.ac.uk 0131 650 3302 EDINA Digimap

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Esriuk_track8_edinburgh_arc_gis_pro

  • 1. Using OS Building Height Attribute data from Digimap in ArcGIS Pro Guy McGarva Ian Holmes EDINA Geosupport
  • 2. Contents - What is Digimap? - What are BHA data from Ordnance Survey? - How can you access it through Digimap? - What have we done to it? - How can I use it in ArcGIS Pro? - 3D visualisation in ArcGIS Pro
  • 3. Who is EDINA? delivers online services and tools to UK Higher and Further Education Based at Supported by “enhance the productivity of research, learning and teaching in UK higher and further education” We aim to
  • 5. The Digimap Service - Overview • An online mapping and data delivery service • Originally built to provide access to Ordnance Survey (GB) maps and data - a 'virtual map library’ • Content extended to include: - Historic OS maps, - British Geological Survey data - Marine maps and data (UKHO via Seazone) - Environment data (from CEH) • Subscription service available to all Higher and Further Education Institutions in UK with approx. 50,000 active users http://digimap.edina.ac.uk/
  • 6. Digimap – Accessing the data Digimap provides access to data in 2 main ways: 1) Roam online mapping application: includes annotation and printing 2) Data Download application: use in your desktop GIS/CAD in various formats
  • 7. Data Download: OS Data Products Available OS Licensed Products - OS MasterMap • Topogrpahy • ITN • Sites Layer • Urban Paths • BHA - VectorMap Local - 25K Raster - 50K Raster - Terrain 5 - PointX POI OS Open Products – All OS Open Data New Formats – Creating new formats for some products such as DWG for VML and File Geodatabase for OS MasterMap to make them easier to use +
  • 8. What are BHA? • BHA are Building Height Attributes from Ordnance Survey • Released as Alpha product in 2014 • Provide multiple values for heights of buildings (both absolute and relative) • Covers most major cities and towns (but not all) • Supplied by Ordnance Survey as 5km tiles in CSV format • Linked to OS MasterMap Topography Layer (i.e. building footprints) by TOID
  • 9. Using BHA CSV and OS MasterMap To start with we created a version of the BHA CSV with a modified TOID that could be joined more easily Need to Join the data on TOID
  • 10. Using data from OS directly However… - Lot of steps - Slow when dealing with large datasets - Needed to use a schema.ini file to load the CSV correctly - Required ArcGlobe or ArcScene to visualise the 3D buildings
  • 11. So what have we done? So, to make is easier to use we have: - Created a File Geodatabase version using FME that contains the Building geometries from OS MasterMap Topography Layer combined with the BHA data. - Used ArcGIS Pro to visualise the data.
  • 12. Using File Geodatabase BHA in ArcGIS Pro • Download BHA File Geodatabase from Digimap • Open BHA File Geodatabase • Convert map to 3D • Extrude buildings • More advanced steps – Add background data – Add in more detailed Terrain 5 data – Set up symbology and representation – Add in other vector data (e.g. Trees, POI) Now the steps are:
  • 13. First step is to download all the data For Example: - Building Height Attributes - MM Topography Layer - OS Terrain 5 DTM - VectorMap Local Raster - PointX POI Download in File Geodatbase, Shape or other suitable format
  • 14. Load Data in ArcGIS Pro Add data… (same as in ArcGIS)
  • 15. Convert to 3D Convert map to 3D (on the View tab) Then drag vector layers to the 3D Layer
  • 16. Extrude to 3D 1. Set the Ground Extrude the building to Max Height using attribute [relhmax]
  • 17. Add Backdrop Data Using VML Raster data from Digimap
  • 18. Add More Detailed Terrain • By default ArcGIS Pro will use a global terrain dataset • To use more accurate terrain, download the OS Terrain 5 dataset from Digimap • Add Preset  Ground • Select downloaded .ASC files
  • 19. Add Representation Can do simple solid colours or use more complicated ‘Procedural Symbols’
  • 20. Use Procedural Rules Can either use ones that come with ArcGIS Pro or import ones from City Engine • Using built in “International Building” Procedural Rule • Set [TotalHeight] to be calculated from the [relhmax] attribute • Building type set to “Office”
  • 21. Add Trees and POI Add “Realistic Trees” for tree features from OS MasterMap and 3D Symbols for features from PointX POI
  • 22. Add Imagery background Using Esri Imagery Basemap Also set background colour for sky and Illumination for shading
  • 23. Caution! • Remember projections! • If you overlay OS data on one of the Esri Basemaps you must use a Transformation (preferably OSTN02) • In ArcGIS Pro this is done by selecting the Properties of the Map and then Transformation
  • 25. Support If you need any help with Digimap or using data from Digimap get in touch with EDINA Geosupport. on the stand outside edina@ed.ac.uk 0131 650 3302 EDINA Digimap