Using data from Digimap in ArcGIS

Using data from Digimap in ArcGIS

• Digimap OS Collection services
• Data Download: formats and conversion guidance
• Styling vector data
• Desktop sharing:
– Add data to ArcMap
– Style vector data in ArcMap
– Add in data from Digimap OpenStream
• Resources

Digimap OS Collection

• Make maps
to view
online,
download
PDFs
• Download OS
mapping data

Roam Map tools: hill
shading, measure,
annotate, print

Task menu:
Search, Map
Content, Map
Info, My Maps

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
• Annotations remain on your map at the same scale as you zoom in and
out

Sample of annotations

• Add symbols,
text, lines,
polygons,
measurements,
pre-defined
shapes
• Annotations
remain on your
map at the same
scale as you
zoom in and out

Annotations options

• Make visible on PDF print
• Save annotations within Digimap (can retrieve and display
annotations in any Roam service e.g. Ancient Roam)
• Export formats: Shapefile, KML, GeoJSON
• Import formats: Shapefile, KML, GPX, CVS, GeoJSON

Data Download services

• Users can download a
wide range of OS map
data products in Data
Download
• MasterMap Download is
for OS MasterMap data
in GML (vector) format
• Boundary Download
provides OS postcode
and boundary lines

From 5th Feb, all available in Data Download – all
services will continue to be available for a period

Updated data

• Used to be one annual update - now update data more regularly
• Recently added Jan 2013 versions of Miniscale, Strategi and Meridian 2
• Select preferred version in Data Download

Available datasets and dates

http://digimap.edina.ac.uk/webhelp/os/data_information/os_data_issues/os_update
_dates.htm#

Data Download service, 3 step process

1. Select
area
2. Select
maps
3. Add to
basket
(format
and date
options)

Basket options

• Click Change to select format and map date

Issues for Digimap users

• Compatibility - some vector map data formats
available from Digimap may not be compatible with
your GIS/CAD software
• Styling of data – vector map data downloaded from
Digimap will not have a cartographic style, when
viewed in GIS/CAD

Vector data formats

Format Compatibility
SHP Shape file, ArcGIS format

MIF/MID MapInfo format

NTF National Transfer format, non-proprietary

GML Geography Markup Language

DXF Drawing Exchange Format, AutoCAD

Formats and conversion guidance
http://digimap.edina.ac.uk/webhelp/os/data_information/data_formats/new_data_tran
slators.htm

Data Download

• Data Download
has 5 categories of
data
• Click + or on
Category name to
open

1. OS MasterMap

• Most detailed mapping available of GB

• 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

• Change Only updates available

OS MasterMap Topography data

http://www.ordnanc
esurvey.co.uk/osweb
site/products/os-
mastermap/index.ht
ml

MasterMap ITN data
http://www.ordna
ncesurvey.co.uk/o
swebsite/products
/os-
mastermap/index.
html

Using OS MasterMap in ArcGIS

• OS MasterMap supplied in GML format (within a Gzip file)
• Can import this directly to ArcMap…but 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.
• Conversion options?

OS MasterMap conversion

Possibilities:

1. Convert to ESRI
Geodatabase format using
Productivity Suite (ArcGIS
V9.2 or later) or Map
Manager (ArcGIS V9.1 or
earlier)

2. Convert to Shapefile
format using InterpOse

OS MasterMap Convertor

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

Backdrop mapping

•Largest scale at top
•Raster data 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
•All compatible with ArcGIS, no
conversion requirements

Backdrop mapping

• Information boxes
indicate:
– Scale
– Format availability
– Version
– Data Allowance
– Terms of use
• Version and format can
be changed in order
Basket, under options

3. Land and Height data

•PROFILE 1:10000, created
2009. Contours at 5m intervals
with spot heights.

•PANORAMA 1:50000, created
1996. Contours at 10m
intervals with spot heights.

•DTM – Digital terrain model –
3D representation of terrain
surface.

Land and Height data

• Contours, Panorama
available in DXF, NTF
formats
• DTMs available in DXF,
NTF, ASC, TIFF
• DXF AutoCAD format,
but can import to ArcGIS
• NTF can be converted to
ESRI Geodatabase, with
Productivity Suite

Productivity Suite, NTF Convertor

• Converts NTF data to ESRI Personal Geodatabase

4. Vector Data

• Formats available for products not
consistent, e.g.:
– VectorMapLocal – GML, SHP
– Strategi – SHP, DXF, TAB, NTF, MIFMID
• SHP available for all vector maps,
except Meridian 2 Tiles (NTF, DXF)

Shape files

• Shape files do not require any conversion prior to use in
ArcGIS.
• Remember to keep all constituent parts together - SHP, DBF,
SHX:

5. Boundary and Location Data
• Boundary-Line - administrative
boundaries e.g. counties, unitary
authorities, electoral areas
• Code-Point – coordinates for
postcodes, boundaries for postcodes
• OS Locator – gazetteer of road names
• Entire 1:50000 Scale Gazetteer,
260,000 entries
• National Grid square outlines, 1km,
5km, 10km, 20km, 100km options
• GB National outlines

OS Boundary-Line

• SHP, MIFMID formats available

Code-Point

• Code-Point data, on 1:10000 Scale Raster background
•Available in CSV or NTF format. Simplest to import to ArcGIS using CSV.

Code-Point with Polygons

• Code-Point polygons are digital post-code boundaries
• Image shows Code-Point data and Code-Point Polygons, on 1:10000 Scale Raster
background
•Available in SHP or MIF/MID format

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

Gazetteer Plus

• Or download selected
records using Gazetteer
Plus – CSV, TAB or XML
formats

Gazetteer data

• Delivered in CSV file
• In order to import to ArcGIS, saved as DBF IV, using Excel 2003
• N.B. DBF IV option not available in Office 2010 – try Open Office
spreadsheet

Unzipping standard Digimap zip files

Use the standard Windows unzip facility:

Unzip standard Digimap zip files

• Sub-folder for each map product
• Citations and contents text documents at top level

Standard Digimap

• 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.

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. Use WinZip, 7Zip, GZip to extract from
GZip

Styling vector data

• 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

Styling options

• Options for
cartographic styling in
Symbology tab of map
layer properties
1. Generate your own
style using layer
attributes
2. Apply a layer file that
contains styling
information
3. Match to symbols in a
pre-installed style

OS MasterMap symbology

• Productivity Suite, Map Manager – symbology files available with
the evaluation software:
– http://www.esriuk.com/software/arcgis/productivitysuite/download#

OS MasterMap symbology

• InterpOse – provide a
style file for ArcGIS,
which you select to
install.

EDINA Symbology, or style, files

• OS vector data:
– Strategi, Land-form Panorama, Meridian, Land-Line – in OS help:
– http://digimap.edina.ac.uk/webhelp/os/using_data_with_arcgis/using
_ntf_data/symbology_in_arcgis_9.htm

• 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.

OpenStream
• Free 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.ed
ina.ac.uk/terms

OpenStream API key

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

Using data from Digimap in ArcGIS

More Related Content

Using data from Digimap in ArcGIS

Editor's Notes