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OS MasterMap data and Building Heights – ArcGIS

OS MasterMap data and Building Heights – ArcGIS. Ian Holmes EDINA Geo User Support. Content. Downloading Building Height data from Digimap Data formats 3D visualisation in ArcGIS Pro Tips: apply realistic facades combining other datasets Further information resources.

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OS MasterMap data and Building Heights – ArcGIS

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  1. OS MasterMap data and Building Heights – ArcGIS Ian Holmes EDINA Geo User Support

  2. Content • Downloading Building Height data from Digimap • Data formats • 3D visualisation in ArcGIS Pro • Tips: • apply realistic facades • combining other datasets • Further information resources

  3. How do I download Building Height data? • Data Download – download OS and other mapping data for use in ArcGIS

  4. Using Data Download Three steps: • Select area • Choose data • Add to basket - options to change format, version and layers

  5. Data Download Click + or on category name to open and see available map data products: • OS MasterMap – most detailed topographic mapping of GB, includes Building Heights • Backdrop Mapping – raster maps at range of scales, all in TIFF format • Land and Height data – contours and Digital Terrain Models • Vector data – range of scales and formats • Boundary and Location data – administrative boundaries, postcode data, gazetteers • Withdrawn datasets

  6. Data Formats • Building Heights supplied by OS in CSV format as a single file containing over 20million features • Digimap provides Building Height data in: • CSV format • KML format, for use in Google Earth • FileGeodatabase, for use in ArcGIS and QGIS • Building Height data from Digimap is provided in 5x5km tiles

  7. Basket options • Select version, format and layers in the basket. • Options vary between map data products. • For Building Heights and Topography, change the format to File Geodatabase

  8. Poll – have you used OS Building Height Attribute before? • Yes • No If you have used OS Building Heights before please use the chat box to tell us what software have you used it in (e.g. ArcMap, QGIS, AutoCAD Map 3D, GoogleEarth etc.)

  9. Building Height Attribute data • ‘Alpha’ release, so not guaranteed to be 100% accurate • Latest version ‘Alpha 3’, released December 2014

  10. Building Height Attribute data • Incomplete coverage, see interactive map on OS website for current extents

  11. Introduction to ArcGIS Pro • What is ArcGIS Pro? • A new application that is part of ArcGIS Desktop • It is not a replacement for ArcMap • Improved 3D visualisation capabilities • Faster? • What do I need to get ArcGIS Pro? • Valid ArcGIS Desktop licence • ArcGIS Online account

  12. Visualising buildings in 3D in ArcGIS Pro • Create a Project • Add a Map to the Project • Add data to the map (buildings, backdrop mapping, plus any additional layers) • Set the projection and transformation in the map • Convert the map to a ‘local scene’ • Add any local, more detailed, terrain models e.g. OS Terrain 5 • Extrude the buildings

  13. ArcGIS Pro – Live demo

  14. ArcGIS Pro – Getting Started • Create a new Project • Add a new Map to the project • Add data to the map (buildings, backdrop mapping, plus any additional layers)

  15. ArcGIS Pro – set coordinate system and transformation ESRI Basemapdata is in WGS 84, OS data is in OSGB 36 so one of the datasets has to be reprojected: • Default transformation ~100m out • OSTN02 transformation is accurate to +/- 2 m • Petroleum transformation accurate to +/- 5 m Note: petroleum transformation is built in to ArcGIS, OSTNO2 transformation has to be added. Instructions on adding it available here.

  16. ArcGIS Pro – Convert to 3D • View > Convert – this creates a second layout in the project document called ‘Map_3D’, you may need to ‘zoom to layer’ to see your data • Add in more detailed terrain model e.g. OS Terrain 5: • Map > Add Preset > Ground • Browse to the DTM • Note you can apply vertical exaggeration if you wish

  17. ArcGIS Pro – Extrude Buildings • Drag your building layer from the ‘2D Layers’ group to the ‘3D Layers’ group • On the Appearance tab, use the Type drop down in the Extrusion group to select an appropriate extrusion method, e.g. ‘Min Height’ • In the field selector drop down select an appropriate attribute to use for the extrusion, e.g. [relhmax] Note: you can apply vertical exaggeration using the Expression Builder e.g. [relhmax]*1.5 will cause buildings to be drawn 50% taller than they actually are

  18. ArcGIS Pro – Symbology • Basic symbology set using ‘standard’ settings • More realistic symbology set using ‘Procedural Symbols’. Note: Procedural Symbols need to be added to the ArcGIS Pro project: Insert > Add Style > Add System Style > select 3D • Select the ‘International Building’ symbol Note: Procedural Symbols will override any previously defined height extrusion settings. • Restore correct extrusion via: Symbology > Properties > Layers > Total Height > Set Attribute Mapping and select [relhmax] or use the Expression Builder if you wish to set a vertical exaggeration

  19. ArcGIS Pro - Facades • More complex facades can be set up using CityEngine • Export rules from CityEngine to a ‘Rule Package File’ • Import Rule Package File in to ArcGIS Pro following these instructions • Remember to update any height values to use an appropriate attribute if all buildings drawn with the same height

  20. ArcGIS Pro – combining other datasets • Point features from OS MasterMap e.g. Positioned Trees • Points of Interest data e.g. Bus Stops, Post Boxes, Phone Boxes • OS MasterMap Sites Layer showing outlines of important sites • Turn on shadows: Map Properties > Illumination > Display shadows in 3D

  21. Further Information – Building Height Attribute The following information is available directly from Ordnance Survey: • Getting Started Guide • Release Notes (December 2014) • Interactive Coverage Map • User Guide • Technical Specification

  22. Further Information – Using BHA Instructions on using BHA in common GIS/CAD packages are available in the Digimap Help system: • ESRI's ArcGIS and ArcGlobe • ESRI's ArcGIS Pro • AutoCAD Map3D and InfraWorks • QGIS

  23. Further Information – ArcGIS Pro Extensive help documentation and tutorials for ArcGIS Pro and CityEngine are available online, links to the key ones below: • Gallery of downloadable ESRI Rule Packages • Getting started with ArcGIS Pro (tutorial from ESRI) • Extrusion types explanation • CityEngine help

  24. Resources • Digimap Resource centre – access help pages, guides, FAQs, videos, case studies and more.

  25. Help pages Digimap Resource centre: http://digimap.edina.ac.uk/webhelp/resources/index.html

  26. Chat • Usually manned in office hours.

  27. Poll Today’s webinar: • I learnt something new • I didn’t learn anything new • Was a good use of my time • Was a poor use of my time • Other

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