onward use of data from digimap collections

Onward use of data from Digimap Collections

Carol Blackwood

Vivienne Carr

Meeting content

• Considerations in use of data• Unzip data• Data formats• Data conversion• Using data in ArcMap: adding data, amending

symbology (Desktop sharing)• Resources• Q&A

Meeting content

• Considerations in use of data• Unzip data• Data formats• Data conversion• Using data in ArcMap: adding data, amending

symbology (Desktop sharing)• Resources

Downloading data from Digimap Collections

I’ll login to one of the Data Download

services

EDINA servers – hold data for 4 Digimap Collections

1. Search

Returns a data.zip file

Download data file

Onward use of data: considerations

Download data file 1. Unzip the

Digimap data

file

2. Convert the

data to an

appropriate

format if

necessary –

consider

formats and

conversion

options

•E.g. ArcGIS

or MapInfo,

CAD or

Image

software• Your data

will NOT look

as it does in

Digimap

Process the data

Import data to

software

Analyse data / Create

map

Meeting content

• Considerations in use of data• Unzip data• Data formats• Data conversion• Using data in ArcMap: adding data, amending

symbology (Desktop sharing)• Resources • Q&A

Unzip Digimap data.zip files

Data download:

1. Data.zip 2. Unzip data.zip:

Contents.txt,Conditions.txt,

Data files

Unzip OS MasterMap data files

2. Unzip data.zip:

1. Contents.txt2. Conditions.txt3. TOID list.txt4. How to use the data .html5.GZip data file

1. Data.zip

3. Unzip GZip data file:

GML data file

GZip files

Windows standard unzip will not work – try:• Gzip • WinAce • Stuffit • PowerArchiver • WinRAR • WinZip • WinImp • 7-zip

Meeting content

• Considerations in use of data• Unzip data• Data formats• Data conversion• Using data in ArcMap: adding data, amending

symbology (Desktop sharing)• Resources • Q&A

Data in Digimap – 2 types

Raster data formats

• Digimap raster data are supplied as TIFF files.• TFW files also supplied.• Most GIS or CAD software will accept TIFF

image files, with no need for conversion.• Remember to keep the supplied TIFF files and

the TFW files in the same folder! Otherwise your GIS software cannot locate the TIFF geographically.

Vector data formats

• DXF (Drawing Exchange Format)• NTF (National Transfer Format)• GML (Geography Mark-up Language)• SHP (ArcView Shapefile)• MIF/MID (MapInfo export format)

• Not every product is available in every format• Some data formats may be incompatible with

software e.g. NTF, GML, DXF

Meeting content

• Considerations in use of data• Unzip data• Data formats• Data conversion• Using data in ArcMap: adding data, amending

symbology (Desktop sharing)• Resources • Q&A

ArcGIS

• Shape files do not require any conversion prior to use in ArcGIS.

• Remember to keep all files together - SHP, PRJ, DBF, SHX:

ArcGIS – common conversion requirements

Digimap format

Required format

ArcGIS version

Tool

NTF MDB 9.2 or later Productivity Suite

NTF MDB 9.1 or earlier Map Manager

GML MDB 9.2 or later Productivity Suite

GML MDB 9.1 or earlier Map Manager

GML SHP All InterpOse

ArcGIS conversion tools

• Available through CHEST:– ESRI Productivity Suite (ArcGIS V9.2 or later) – this

must be requested from CHEST separately, via your institutional CHEST representative.

– Map Manager (ArcGIS V9.1 or earlier)

• InterpOse Digimap edition - free download for GML data:−http://www.dottedeyes.co.uk/spatial_data_loading/inter

pose/digimap.php

MapInfo – common conversion requirements

Digimap format

Required format

MapInfo version

Tool

NTF .MIF/.MID Any NTF2MIF convertor

GML n/a 8.5 or later No conversion required

GML .MIF/.MID 8.0 or earlier OSM2MIF convertor

GML .TAB any InterpOse

MapInfo conversion tools

• NTF2MIF - free download for NTF data• OSM2MIF - free download for GML data• Both available from:

http://www.bodley.ox.ac.uk/users/nnj/translat.htm

• InterpOse Digimap edition - free download for GML data:http://www.dottedeyes.co.uk/spatial_data_loading/interpose/digimap.php

CAD conversion tools

• InterpOse Digimap edition - Converts GML to DXF format:– http://www.dottedeyes.co.uk/spatial_data_loading/inter

pose/digimap.php

Meeting content

• Considerations in use of data• Unzip data• Data formats• Data conversion• Using data in ArcMap: adding data, amending

symbology (Desktop sharing)• Resources • Q&A

Meeting content

• Considerations in use of data• Unzip data• Data formats• Data conversion• Using data in ArcMap: adding data, amending

symbology (Desktop sharing)• Resources • Q&A

Resources

EDINA:

• Help pages – Using data with GIS

• Training guides:http://edina.ac.uk/digimap/support/training/

Resources

EDINA Symbology files:

• OS data:– Strategi, Land-form Panorama, Meridian, Land-Line – in Help

under Using data with ArcGIS 9.x– OS MasterMap – will be added to Help shortly

• 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.

Resources

• 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

Meeting content

• Considerations in use of data• Unzip data• Data formats• Data conversion• Using data in ArcMap: adding data, amending

symbology (Desktop sharing)• Resources • Q&A

Resources

• Ordnance Survey website:

– General product information:

http://www.ordnancesurvey.co.uk/oswebsite/products/