Using data from Digimap in ArcGIS What OS data is available in Digimap? How do I unzip and convert the data for ArcGIS? What is ArcGIS? Styling options Digimap OpenStream Other resources

Data in Digimap – what’s available? Range of OS map data: Backdrop maps Land & height data Vector data Place name and road name databases MasterMap vector data, GML format Administrative boundaries and postcode data

Data in Digimap – 2 types

Data Download - raster data

Data Download – Land and height data

Data Download - Vector data

Data Download - Location data

MasterMap Download Most detailed mapping available of GB Scale 1:1250 to 1:10000 Widely used by architects and planners NOTE: MasterMap Download provides vector format MasterMap. Raster format MasterMap is available in Data Download. Topography Layer is a detailed, intelligent, geographic database. It contains almost half a billion features from the built and natural landscape of Britain. Detailed and surveyed to a high degree of accuracy, the Topography Layer is continually revised to incorporate changes to the urban and rural environment. It consists of nine themes: land area classifications; buildings; roads, tracks and paths; rail; water; terrain and height; heritage and antiquities; structures; and administrative boundaries. The ITN Layer is a detailed, accurate and up-to-date digital dataset consisting of a Roads Network theme and a Road Routing Information (RRI) theme for Great Britain. The Roads Network contains road categories, from motorways and primary routes to named and unnamed minor roads and local streets. RRI contains features such as height, weight and width restrictions; traffic calming; turn restrictions; and one-way roads as well as vehicular access and time restrictions. Other OS Layers – not available within Digimap Address Layer The most complete national address dataset for the whole of Great Britain. Imagery Layer The OS MasterMap Imagery Layer is a maintained dataset of  high-quality aerial photography and provides a detailed aerial map of Great Britain.

MasterMap Download Ordnance Survey have 4 layers of MasterMap data (Topography, Imagery, ITN and Address Layer) Digimap offers two of these layers: Topography layer Integrated Transport Network (ITN) layer

Boundary Download products Code-Point – postcode listings or postcode polygons Boundary lines – e.g. counties, unitary authorities, electoral areas National GB boundaries Code-Point consists of two separate elements, Code-Point itself and Code-Point polygons: Code Point provides a National Grid reference for each unit postcode in Great Britain. Multiple postcodes in a single block of flats or offices will share one National Grid reference. With each co-ordinated point there is information about the postal delivery points within the postcode unit and codes for a number of administrative boundaries, which coincide with the postcode unit. It is Code-Point that is used in Digimap when a postcode search is entered to locate a map. Code-Point polygons represent postcode unit boundaries in Great Britain. The boundaries are derived from ADDRESS-POINT®, an Ordnance Survey product which provides a National Grid co-ordinate for each postal delivery address in Great Britain. Each postcode unit boundary is created to surround all addresses with the same postcode. Where appropriate, the boundaries follow major roads, railways, rivers and Royal Mail postcode sector boundaries. Often, tower blocks or similar buildings will be assigned with more than one postcode. Such buildings are called vertical streets and are represented in the polygon dataset as small squares. A separate look-up table links postcodes to vertical streets using a unique vertical street reference code. Some postcode units are omitted from the dataset, due to issues of accuracy or because they are PO boxes (i.e. non-geographic postcodes). These are listed in separate tables, included with the Code-Point polygons. Boundary-Line is the key dataset of administrative and voting boundaries in Great Britain. Available in NTF, SHP and MIF / MID formats. Differences in the download for different formats: The NTF files available for download are divided by area. There are individual NTF files for each County, Unitary authority and European Region of Great Britain. NTF files for each County and Unitary Authority contain all the boundaries for all the other datasets within them. These datasets will vary depending on the country that the area is in. Shape and MID/MIF files have Great Britain wide coverage for each boundary type; e.g. A Shapefile of all the European Regions or a MID/MIF file of all the Westminster Parliamentary Constituencies. County County Electoral Divisions District Borough Unitary Authority District Borough Unitary Authority Wards European Regions Greater London Constituencies Scotland and Wales Constituencies Unitary Authority Electoral Divisions Westminster Constituencies

Code-Point Code-point data, on 1:10000 Scale Raster background

Code-Point Polygons Code-Point data and Code-Point Polygons, on 1:10000 Scale Raster background

Boundary lines sample Raster map of Edinburgh Scotland constituency boundary lines overlaid

Using data from Digimap in ArcGIS What OS data is available in Digimap? How do I unzip and convert the data for ArcGIS? What is ArcGIS? Styling options Digimap OpenStream Other resources

How do I use this data in ArcGIS? 1. Download data from Digimap (zip file) Unzip data file Convert the data to a format compatible with your software - if necessary 2. Process the data 3. Import data to ArcGIS 4. Analyse data / Create map

Unzipping standard Digimap zip files Use the standard Windows unzip facility:

Unzip standard Digimap zip files

Unzip MasterMap zip files Data is delivered in GZip file - GML data within the Gzip Can extract the GML file from the Gzip file…not always necessary to do this

Data in Digimap - what formats? GML TIFF, SHP, NTF, GML, MIF/MID, DXF, CSV, ASC SHP, NTF, CSV, MIF/MID

Data in Digimap – what formats? Some products are available in more than one format, e.g. Strategi is available in NTF, DXF, SHP and MID/MIF

What formats are compatible with ArcGIS? Raster data products are available in TIFF format Compatible with ArcGIS

What formats are compatible with ArcGIS? TIFF World files - contain the location, scale, and rotation of a map that is stored as a TIFF image. Remember to keep the supplied TIFF files and the TFW files in the same folder! Otherwise your GIS software cannot locate the TIFF geographically.

What formats are compatible with ArcGIS? Shape files do not require any conversion prior to use in ArcGIS. Remember to keep all constituent parts together - SHP, DBF, SHX:

What formats are incompatible with ArcGIS? NTF: OS Land-Form Profile – convert to ESRI Geodatabase OS Land-Form Panorama – convert to ESRI Geodatabase OS Meridian 2 – SHP files available OS Strategi – SHP files available OS Code-Point – CSV files available OS Boundary Line – SHP files available GML: OS MasterMap, OS VectorMap Local

Converted file for use in ArcGIS Original file from Digimap NTF data Convert to ESRI Personal Geodatabase format (.MDB suffix), using Productivity Suite or Map Manager (ESRI tools). Converted file for use in ArcGIS Original file from Digimap

Productivity Suite, NTF Convertor Available through Eduserv CHEST: ESRI Productivity Suite (ArcGIS V9.2 or later) Map Manager (ArcGIS V9.1 or earlier)

2 data products are in GML format: OS MasterMap data GML data 2 data products are in GML format: OS MasterMap data OS VectorMap Local data It is possible to import GML/GZ files to ArcMap 10. However, in our experience it is trickier to isolate features, analyse the data, change the style when using this method. We recommend that you convert the data if possible.

OS MasterMap conversion Possibilities: Convert to ESRI Geodatabase format using Productivity Suite (ArcGIS V9.2 or later) or Map Manager (ArcGIS V9.1 or earlier) Convert to Shapefile format using InterpOse

Productivity Suite, OS MasterMap Data Convertor Available through Eduserv CHEST: ESRI Productivity Suite (ArcGIS V9.2 or later) Map Manager (ArcGIS V9.1 or earlier)

OS MasterMap Convertor Converts OS MasterMap data to ESRI Personal Geodatabase format Accepts GZip files for conversion

InterpOse Digimap edition http://www.dottedeyes.co.uk/spatial_data_loading/interpose/digimap.php Free download, which converts MasterMap GML data to SHP file format (and various other formats) InterpOse accepts GZip files for conversion

OS VectorMap Local conversion Free download: http://www.rolta-europe.com/osvector.html Converts OS VectorMap Local to Shape file format Accepts GZip files

Gazetteer data – available in Data Download Delivered in CSV file Saved as DBF IV, using Excel 2003 N.B. DBF IV option not available in Office 2010 – try Open Office spreadsheet

Using data from Digimap in ArcGIS What data is available in Digimap? How can I use this in ArcGIS? What is ArcGIS? Styling options Digimap OpenStream Other resources

What is ArcGIS? Desktop Geographic Information System 3 levels of license Applications within license: ArcMap explore/analyse data and make maps.  ArcCatalog data management  ArcToolbox™ tools for data/spatial analysis

ArcMap Table of contents – view data layers Map display panel Toolbar – open ArcCatalog and ArcToolbox here Table of contents – view data layers Map display panel

Using data from Digimap in ArcGIS What data is available in Digimap? How can I use this in ArcGIS? What is ArcGIS? Styling options Digimap OpenStream Other resources

Appearance of vector data MasterMap data viewed in ArcMap Vector data (e.g. OS MasterMap, OS VectorMap Local) will not have the same appearance as it does in Digimap, when initially added to ArcMap

Appearance of vector data Possible to apply style (or symbology) files to the data, to replicate the Digimap style

Symbology, or style, files InterpOse – provide style files for use with ArcGIS and MapInfo, which can be installed to your computer on setup of InterpOse Rolta - provide style files with the installation Productivity Suite, Map Manager – style files supplied EDINA supply style files for several data products – find these in the Help pages.

EDINA Symbology, or style, files OS data: MasterMap, Strategi, Land-form Panorama, Meridian, Land-Line – in Help under Using data with ArcGIS 9.x Geology Digimap – bundled with data download file. 1 avl file for each Shape file. Marine Digimap – download Fonts files and Style file from Marine Digimap Help pages and copy into relevant folders in C:/Program Files.

Using data from Digimap in ArcGIS What data is available in Digimap? How can I use this in ArcGIS? What is ArcGIS? Styling options Digimap OpenStream Other resources

Digimap OpenStream

Digimap OpenStream Free service to anyone with .ac.uk email address Must register to use the service Allows users to stream certain OS data sets directly to their software without downloading and storing large quantities of data Digimap OpenStream provides access to the following OS OpenData products: MiniScale® 1:250,000 Scale Colour Raster OS Vector Map™ District (Raster) OS Street View® http://openstream.edina.ac.uk/terms

Digimap OpenStream

Digimap OpenStream API key Add my API key to the OpenStream URL: http://openstream.edina.ac.uk/openstream/wms?token=[your_aipkey] Setup this URL in my GIS > allows me to stream OS data

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Using data from Digimap in ArcGIS What data is available in Digimap? How can I use this in ArcGIS? What is ArcGIS? Styling options Digimap OpenStream Other resources

Digimap OS Collection Help

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Digimap Training Materials EDINA Training guides: http://edina.ac.uk/digimap/support/training/

Ordnance Survey website General product information: http://www.ordnancesurvey.co.uk/oswebsite/products/ Guidance on software for use with OS MasterMap: http://www.ordnancesurvey.co.uk/oswebsite/products/osmastermap/information/technical/software.html