Webinar - Digimap data in GIS


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Slides used in a webinar for Digimap users. Digimap is a service for UK higher education that provides maps and map data to registered users. Webinar provided some tips on use of map data.

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  • It’s straightforward to use Data Download – ordering map data involves 3 steps:Select your area on the map – there are 4 methods for selection. The shaded orange area you see here is our selected area.Select the map data that you wish to download. You can open any category of map data by clicking on the name. Then it’s a matter of ticking the box next to any map data you wish to download. You can download as many as you like in an order, provided you do not exceed the allowances. There is an allowance for each map data product – in order that our servers can process orders as quickly as possible.Third step is to add to basket. Once you click the add to basket button, your basket pops up on screen. You can then select from different formats, date versions and map layers, where available. Options will different depending on map product.
  • Webinar - Digimap data in GIS

    1. 1. Digimap data in GIS 23 October 2013 James Crone, Edina Geo User Support Vivienne Carr, Edina User Support
    2. 2. Content • Roam • Data Download • Issues for users: • • • • Unzipping Formats Tile sizes Styling vector data • Demo: • View vector and raster data to ArcMap • Digimap OpenStream • Copyright and Resources
    3. 3. Digimap OS Collection • Roam – view, annotate, print OS maps at a range of fixed scales • Data Download – download OS mapping data for use in GIS/CAD
    4. 4. Roam Save & open maps, Print, Map Content, Map Info. Search, scale bar, overlays, annotate, measure, change basemap
    5. 5. Annotation tools • Toolbar appears at the top of the screen – can be moved around • Main options to add annotations in the Draw & Create area – add symbols, text, lines, polygons, pre-defined shapes • Options: • • • • Make visible on PDF map print Save map and annotations within Digimap (can display annotations in any Digimap Roam service e.g. Ancient Roam) Export annotations – available formats: Shapefile, KML, GeoJSON Import annotations – following formats: Shapefile, KML, GPX, CVS, GeoJSON
    6. 6. Data Download • All available OS map data in Data Download • Download several map products in one order • 5 categories of map data • 3 steps to order map data • Maps provided for context only
    7. 7. Data Download Click + or on category name to open and see available map data products: • OS MasterMap – most detailed topographic mapping of GB, transport network map data • Background 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
    8. 8. Using Data Download 3 step process: 1. Select area 2. Choose maps 3. Add to basket – Options to change format, date and layers
    9. 9. Basket options • Click Change to select format, layers and map date • Options vary between map data products
    10. 10. Available datasets and dates http://digimap.edina.ac.uk/webh elp/os/data_information/os_data _issues/os_update_dates.htm#
    11. 11. Issues for Digimap users • Formats - some vector map data formats available from Digimap may not be compatible with your GIS/CAD software • Unzipping – all data is provided in a zip archive file. Sometimes data is zipped within the zip archive! • Tile sizes - map data products are provided in different tile sizes • Styling of data – vector map data downloaded from Digimap will not have a cartographic style, when viewed in GIS/CAD
    12. 12. Poll What software do you use most often with geospatial data? A. ArcGIS B. CAD C. QGIS or other open source software D. I don’t use any software E. Other
    13. 13. Unzip standard Digimap zip files • You will download 1 zip archive file for each order you place in Data Download • Use the standard Windows unzip facility to unzip and extract the file contents to a location on your computer
    14. 14. Unzip standard Digimap zip files Zip archive file contents: • Sub-folder for each map product in your order • Citations and contents text documents at top level
    15. 15. Sub-folder contents • Within each sub-folder, data files and conditions of use text file. • Data from Digimap OS is covered by the Digimap licence OR the OS OpenData licence. So each data folder has a conditions document that specifies which conditions apply. • NOTE: for some products, the map data will be zipped in the sub-folder. Image of Vector Map District data. Check before you try to add it to your software!
    16. 16. OS MasterMap zip files • OS MasterMap vector data is delivered in GZip file - GML data within the GZip • Can extract the GML file from the GZip file…but generally not necessary to do this. • Note: standard windows unzip will not extract the Gzip. Use WinZip, 7Zip, Gzip.
    17. 17. Formats and conversion guidance http://digimap.edina.ac.uk/webhelp/os/data_information/data_formats/new_data_translators.htm
    18. 18. Data formats Format Compatibility DXF, DWG Drawing Exchange, or Drawing, format, AutoCAD MIF/MID MapInfo format NTF National Transfer format, non-proprietary. Older format, developed in 1990s. GML Geography Markup Language, non-proprietary SHP Shape file, ArcGIS format TIFF TIFF image format, used for background mapping products.
    19. 19. TIFF files •Raster data (backdrop mapping) all supplied in TIFF image format, with a TFW file •TIFF World Files contains location, scale and rotation of TIFF map. Keep in same folder as TIFF files!
    20. 20. Shape files • • • ArcGIS format, can be used in other software too. Remember to keep all constituent parts together SHP, DBF, SHX, P RJ. Image of folder containing VectorMap Local shape files
    21. 21. Using OS MasterMap • OS MasterMap supplied in GML format (within a GZip file) • Possible to import directly to many software packages, may get better results if convert to a compatible format. • Conversion options?
    22. 22. Conversion tools ESRI Productivity Suite • Converts OS MasterMap data in GML format to ESRI Personal Geodatabase format • Converts NTF data to ESRI Personal Geodatabase format • Free if your institution has a licence for ArcGIS – ask your Eduserv CHEST rep. • Evaluation version: http://www.esriuk.com/software/arcgis/pr oductivitysuite/download
    23. 23. Conversion tools • Free download, which converts MasterMap GML data to ArcGIS, CAD and MapInfo formats • http://misoportal.com/data/interpose-for-digimap/
    24. 24. InterpOSe output formats
    25. 25. Tile sizes • Map data from Digimap is typically provided in tiles that have been referenced to the British National Grid - exceptions are OS MasterMap vector data, gazetteers, products provided with national coverage such as Boundary-Line. • Data from Digimap is in a range of sizes, from 1 x 1 km tiles to 100 x 100 km tiles. • Typically the more detailed the map data, the smaller the tile size, e.g.: Product Tile size 1:50000 raster 20 x 20 km 1:250000 raster 10 x 10km Vector Map Local 5 x 5km 1:10000 Vector Map District 1:50000 100 x 100 km
    26. 26. Merging tiles • Where tiles are provided in smaller sizes, e.g. 5 x 5 km, possible to merge them into one Image: OS Terrain contours in ArcMap, for area of South East England
    27. 27. Clipping tiles • Where tiles are provided in large sizes e.g. 100 x 100 km, possible to clip them to smaller area Image: Vector Map District clipped to smaller area in ArcMap
    28. 28. Styling vector data • Vector data (e.g. OS MasterMap, OS VectorMap Local) will not have the same appearance as it does in Digimap, when viewed in ArcGIS
    29. 29. Styling options In ArcGIS – do this in Symbology tab of map layer properties: 1.Generate your own style using layer attributes 2. Apply a layer file that contains styling information – find available files in OS and Marine Help pages. Geology Digimap, layer files provided in download file. 3. Match to symbols in a pre-installed style, e.g. from InterpOSe
    30. 30. OS MasterMap symbology • Productivity Suite: – symbology files available with the evaluation software: http://www.esriuk.com/software/arcgis/productivitysuite/download# • InterpOse – provide a style file for ArcGIS with the InterpOSe installer • AutoCAD – template file available from AutoCAD website. Load the template file, then the OS MasterMap data: http://www.autodesk.co.uk/adsk/servlet/item?siteID=452932&id=7986865 • Digimap guides on all of the above processes here: http://digimap.edina.ac.uk/webhelp/training/training.htm
    31. 31. Demo • ArcGIS v10 • Map data for Cumbria area • Add raster data, point data, Digital Terrain Models and contours • Plus annotation from Roam
    32. 32. Data Download • Data categories
    33. 33. 1. OS MasterMap • Vector map product • Most detailed mapping available of GB • Digimap offers 2 layers from the 4 layers of OS MasterMap - Topography and ITN. Others are Imagery and Address Layer. • Change Only updates available
    34. 34. 2. Backdrop mapping •Largest scale at top
    35. 35. 2. Backdrop mapping • Information boxes indicate: – – – – – Scale Format availability Version Data Allowance Terms of use
    36. 36. 3. Land and Height data Created Scale Formats 2009 1:10000 DXF, NTF Terrain 50 2013 contours 1:50000 Shape, GML3 Panorama 1996 contours 1:50000 DXF, NTF Profile contours
    37. 37. Land and Height data • DTM? Digital Terrain Model, useful for 3D modelling of terrain. • DTMs available in DXF, NTF, ASC, TIFF formats
    38. 38. 4. Vector Data • Largest scale at top, VectorMap Local 1:10000 • Smallest scale is Strategi, 1:250000 • Formats available for products not consistent, e.g.: – Vector Map Local – GML, DWG, SHP – Strategi – SHP, DXF, TAB, NTF, MIFMID
    39. 39. 5. Boundary and Location Data • Boundary-Line - administrative boundaries e.g. counties, unitary authorities, electoral areas. Shape format. • Code-Point – coordinates for postcodes, boundaries for postcodes. CSV, NTF (Code-Point). Shape, MIFMID (Code-Point Polygons). • OS Locator – gazetteer of road names. CSV. • Entire 1:50000 Scale Gazetteer, 260,000 entries. CSV. • National Grid square outlines, GB National outlines – Shape, MIFMID, DXF.
    40. 40. 1:50000 Scale Gazetteer • Place name searches in Digimap use the OS 1: 50000 Scale Gazetteer • Same database that is used on OS Landranger Map • Download entire Gazetteer from Data Download, CSV format
    41. 41. Gazetteer Plus • Or download selected records using Gazetteer Plus – CSV, TAB or XML formats
    42. 42. OpenStream • Service open to anyone with .ac.uk email address • Stream following OS map data direct to GIS: • MiniScale® • 1:250,000 Scale Colour Raster • OS Vector Map™ District (Raster) • OS Street View® http://openstream.edina.ac. uk/terms
    43. 43. OpenStream
    44. 44. OpenStream API key • Add my API key to the OpenStream URL: http://openstream.edina.ac.uk/openstream/wms?toke n=[your_apikey] • Setup this URL in my GIS > allows me to stream OS data
    45. 45. Permitted Uses Summarised as for Educational Purposes: • Teaching, academic research, limited internal business use – – – – Includes institutional publicity Public lectures Conference demonstrations Private study/personal development including student societies work – Teaching practice (B.Ed. PGCE etc) Excludes: – Institutional estate management – Running the institution as a business – Courses for commercial gain
    46. 46. Publication • You can publish Licensed Data and materials which contain Licensed Data • Subject to some restrictions which are detailed in the Licence • Includes various publications • Copyright acknowledgement required: ‘© Crown Copyright and Database Right [Year of supply or date of publication].Ordnance Survey (Digimap Licence)’ – Copyright acknowledgement is included on all maps printed from Digimap Collections. – Remember to include copyright acknowledgement if you download data from Digimap and create maps!
    47. 47. Sharing Licensed Data • You may only share Licensed Data with: – other Authorised Users – Public Sector Mapping Agreement (PSMA) members – One Scotland Mapping Agreement (OSMA) members – Sponsors who have their own licence for the same data (type and coverage) • Sponsored research: – Results must be published widely and immediately – Hard copy plots can be supplied to sponsors – DATA cannot be supplied to sponsors – Excludes Research Council funded research centres with their own Ordnance Survey licence e.g.:  Institute of Hydrology  British Geological Survey
    48. 48. Support with copyright • Lists of Frequently Asked Questions: http://digimap.edina.ac.uk/webhelp/digimapsupport/access/licence_ag reements.htm • Your site representative: http://digimap.edina.ac.uk/webhelp/digimapsupport/service_info/site_r ep_list.htm • EDINA Help Desk: edina@ed.ac.uk 0131 650 3302
    49. 49. Resources • Digimap Resource centre – access help pages, guides, FAQs, videos, case studies and more.