Aug 012017
 
3D scene with Aerial imagery and Lidar

3D scene showing imagery with hillshading derived from the 50cm Lidar DSM. © Getmapping Plc, © Environment Agency copyright and/or database right 2016

We have now reached the end of the Lidar Digimap Preview. We hope that everyone who has used the service has found it a great way to access the Lidar data available. From now on the service will continue to be available to Digimap Users whose institution subscribes to the Aerial Digimap service.

Find out here if your institution subscribes

Lidar Point Cloud Forth Rail Bridge

Lidar Point Cloud Forth Rail Bridge. Crown copyright Scottish Government, SEPA and Scottish Water (2012).

Despite the addition of Lidar Digimap, Aerial Digimap subscription prices will not be increased for the 17/18 academic year. We will also be looking to add further datasets to Lidar Digimap over the next 12 months, these include:

  • Additional Point Cloud datasets ideal for use in CAD software for creating 3D models like this one of the Forth Rail Bridge
  • Photography; aerial images captured at the same time as the Lidar data

We’d also like to thank the hundreds of people who took the time to fill in our user feedback survey on Lidar Digimap, we have seen a huge range of uses for the data across a very broad range of disciplines. This feedback exercise has been very successful and we will be making the draw to see who has won the Amazon vouchers very soon. Keep watching the blog for the announcement in the coming weeks.

If you would like any more information about the Lidar or Aerial Digimap collections or details on how to subscribe then please do not hesitate to contact us:

  • Email: edina@ed.ac.uk

 

Jun 062017
 

LidarToday we have launched our new Lidar Digimap Collection. The new Collection is available to preview for all Digmap users until the 31st of July 2017. Lidar data can be downloaded through the Lidar Download for use in GIS and CAD applications; there is no Lidar Roam application for viewing the data.

Lidar Point Cloud Forth Rail Bridge

Lidar Point Cloud Forth Rail Bridge. Crown copyright Scottish Government, SEPA and Scottish Water (2014).

The service allows you to download current and past Lidar data from the Environment Agency (EA), Natural Resources Wales (NRW) and Scottish Environmental Protection Agency (SEPA).

There is already a large amount of data available in the service but we are still processing some of the datasets. Once it has all been processed the service aims to have complete coverage of all the data available from these agencies, including the raw LAS point cloud data and Orthophotography captured during the flights (where available).

Lidar data is very useful when creating 3D terrains and models as can be seen from the images to the left and below. For creating 3D scenes such as the one below, it is very useful to use a Digital Surface Model (DSM) to create a surface and hillshading from which you can drape other data over, such as the imagery from Aerial Digimap in this example:

3D scene with Aerial imagery and Lidar

3D scene showing imagery with hillshading derived from the 50cm Lidar DSM. © Getmapping Plc, © Environment Agency copyright and/or database right 2015. All rights reserved.

The following datasets are available through Lidar Digimap at present:

Dataset Availability and publication date
Digital Terrain Model and Digital Surface Model (DTM and DSM) England

  • 25cm: 2009-2015
  • 50cm: 2009-2015
  • 1m: 2010-2016
  • 2m: 2010-2015

Scotland

  • Phase 1 (1m): 2011-2012
  • Phase 2 (1m): 2013-2014

Wales

  • 25cm: 2015
  • 50cm: 2009-2016
  • 1m: 2010-2016
  • 2m: 2010-2016
Point Cloud Scotland

  • Phase 1: 2011-2012
  • Phase 2: 2013-2014

 

We are currently processing the following datasets and hope to have them available in the service shortly:

Dataset Availability and publication date
Digital Terrain Model and Digital Surface Model (DTM and DSM) England

  • Historical data: 1998-2015

Scotland

  • 50cm
  • 2m
Point Cloud England

  • 2005-2016
Orthophotographs England

  • 2006-2015

 

The data was collected for flood risk analysis and modelling and primarily follows water courses and coastal habitats. The data covers approximately 72% of England, 20% of Scotland and 70% of Wales. The image below shows the 1m resolution DTM coverage in England:

1m DTM Lidar coverage in England

1m DTM Lidar coverage in England [click to expand]

We are also very keen to know what you have been doing with Lidar data in the past or what you plan to do with the Lidar data you are going to get from the new service. To find out this information from you we have put a survey in the interface and you have the chance to win a £20 Amazon just for filling it in!

Digimap Lidar Survey

Lidar Options

We hope you like using the new Collection, if you have any questions about the data please contact us:

  • Email: edina@ed.ac.uk
May 302017
 

As part of our continuous work to improve Digimap and make it more user friendly, we recently added a new Contact Us system. The new system is available in all Digimap Collections and guides you to useful help resources based on what it is you want to know:

Contact Us - stage 1

Contact Us – stage 1

If you are not able to find the answer to your question using the resources then you are asked to complete a short form outlining the problem you are experiencing:

Contact Us - stage 2

Contact Us – stage 2

If you are logged in to Digimap you have the option to submit the completed form to either the local Digimap support team at your institution or to the Digimap Helpdesk at EDINA. All queries submitted by users who are not logged in to the service are automatically routed to the EDINA Digimap Helpdesk. The details are sent by email, and copied to you so that you have a full record of what was asked. The new system has been available since the beginning of May and is available from the all Contact Us links in the Roam and Data Download clients, as well as the Contact Us link on the footer of the Digimap home page:

Contact Us Link in Data Download

Contact Us Link in Data Download

Contact Us Link in Roam

Contact Us Link in Roam

We hope you like using this improved feature, but if you have any questions or comments regarding this or anything else to do with Digimap, please get in touch using the email address below, or try out the new Contact Us form in Digimap!

  • Email: edina@ed.ac.uk
 May 30, 2017  Posted by at 10:19 am Digimap News, New Features, Of Interest Tagged with: , ,  No Responses »
Mar 012017
 

We have updated a number of key datasets in Jan/Feb 2017 in the Ordnance Survey collection of Digimap. These updates bring the datasets available from Digimap inline with the latest versions published by Ordnance Survey. Of particular note are the updates to the two most detailed mapping products available from Ordnance Survey: OS MasterMap Topography Layer and OS VectorMap Local.

OS VectorMap Local showing Westminster

OS VectorMap Local showing Westminster

OS MasterMap Topography Layer showing Westminster

OS MasterMap Topography Layer showing Westminster

OS Data Download:

Product Name OS Publication Date
Integrated Transport Network (ITN) Layer December 2016
OS MasterMap Topography Layer December 2016
OS MasterMap Water Network Layer January 2017
OS VectorMap Local January 2017
OS VectorMap Local Raster January 2017
MiniScale January 2017
OS Terrain 5 Contours January 2017
OS Terrain 5 DTM January 2017
OS Open Names January 2017
Code-Point with polygons January 2017
Code-Point Open February 2017

 

OS Roam:

Product Name OS Publication Date
OS MasterMap Topography Layer December 2016
OS VectorMap Local Jan 2017
OS VectorMap Local Raster Jan 2017
MiniScale January 2017

 

The OS data update page is kept up to date with all dataset updates in the collections.

If you have any questions about the dataset updates or Digimap please contact us:

  • Phone: 0131 650 3302
  • Email: edina@ed.ac.uk
Jan 052017
 

The tables below list the datasets that were updated in December 2016 and at the very start of January 2017. The most significant change is the addition of OS Open Map – Local to Roam, which was covered in an earlier blog post. The other updates bring the data available up to date with the most recent versions published by Ordnance Survey.

 

Cold Christmas, 1:25,000 Colour Raster

Cold Christmas, 1:25,000 Colour Raster

OS Data Download:

Product Name OS Publication Date
1:25,000 Colour Raster December 2016
1:50,000 Colour Raster December 2016
Points of Interest December 2016

 

OS Roam:

Product Name OS Publication Date
OS Open Map – Local December 2016
1:25,000 Colour Raster December 2016
1:50,000 Colour Raster December 2016
OS VectorMap District September 2016

 

The OS data update page is kept up to date with all dataset updates in the collections.

If you have any questions about the dataset updates or Digimap please contact us:

  • Phone: 0131 650 3302
  • Email: edina@ed.ac.uk
Dec 222016
 

OS Open Map – Local (OML) was recently added to the Digimap Roam application, giving users the ability to create maps online with a detailed, vector open dataset. OML is the most detailed vector mapping product available from Ordnance Survey as Open Data. We have added this dataset to the following map views in Digimap Roam:

Map View Default Print Scale
Neighbourhood View 1:10,000
Street View 1:5,000
Detailed View 1:2,500

The dataset is rich in features and includes detailed building outlines and Car Charging Points, which are sourced from the National Charge Registry.

OS Open Map - Local showing Coventry City Centre

OS Open Map – Local showing Coventry City Centre

Ordnance Survey first released OML as a beta product in March 2015 and Digimap users have been able to download this dataset via the Data Download application since April 2015. The October 2016 release of OML marks the end of the beta period and provides the first main version of the dataset.

OML is intended to be used as a detailed basemap on which to visualise your own data and is designed to be an alternative to OS Street View, which will be withdrawn in March 2017 by Ordnance Survey.

The cartography team at Digimap have worked hard to implement a consistent style with that of the smaller scale VectorMap District product, ensuring a familiar look and feel between the two Open Data products. Contours from the OS Terrain 50 product are included when viewing the data in Roam, to give greater context especially in rural and hilly areas.

OS Open Map - Local showing Canary Wharf

OS Open Map – Local showing Canary Wharf

Further information on the new dataset can be found on the Digimap help page or the Ordnance Survey website. We hope you like the new data, if you have any questions about the dataset or Digimap please contact us:

  • Phone: 0131 650 3302
  • Email: edina@ed.ac.uk
Nov 042016
 

We are pleased to announce the addition of two new datasets to the Digimap Ordnance Survey Collection, which are available to download through the Data Download application. Both these datasets are detailed network datasets and form part of the OS MasterMap family of products. The datasets should prove useful for individuals carrying out detailed network analysis using the road and river network of Great Britain.

OS MasterMap Highways Network

OS MasterMap Highways Network is a new dataset from Ordnance Survey which provides the most detailed road network dataset available for Great Britain. The new Highways Network product is a replacement for OS MasterMap Integrated Transport Network (ITN), which will be retired at some point in the future. Highways Network was built using ITN as the base network and then further improved adding information from other authoritative sources including the National Street Gazetteer (NSG) and local authorities in England and Wales.

OS MasterMap Highways Network with OS MasterMap Topography Layer

OS MasterMap Highways Network with OS MasterMap Topography Layer (raster version)

Highways Network is provided in GML format as a single, national dataset covering the whole of Great Britain. This is a large dataset and is available through Digimap as a single download of 1.1GB in size.

Ordnance Survey have produced a number of supporting documents that are available for download directly from their website. We recommend that you consult these before using the data.

Current version: June 2016

OS MasterMap Water Network Layer

OS MasterMap Water Network Layer is a new network dataset from Ordnance Survey that represenets the centrelines of watercourses including flow direction and suplementary information.

OS MasterMap Water Network Layer on top of Aerial Imagery

OS MasterMap Water Network Layer on top of aerial imagery for an area of the Scottish Highlands

OS MasterMap Water Network Layer is provided in GML format in 5 x 5km tiles. Water network features that cross tile boundaries are included in all tiles that they cross, so the data is called ‘hairy data’ due to the presence of these ‘hairs’ around the edge of each tile. This means that some processing is required to de-duplicate the features that cross tile boundaries if your order contains data from more than one 5 x 5km tile.

OS MasterMap Water Network Layer is projected in the ESPG 7405, which is a British National Grid projection that also includes the Z value using Ordnance Datum Newlyn.

Ordnance Survey have produced a Getting Started Guide which describes the process of importing the Water Network Layer in to common GIS packages.

Current version: October 2016

Oct 052016
 
Giraffe shadows at Chester Zoo

Giraffe shadows at Chester Zoo (click to enlarge)

EDINA is pleased to announce the launch of Aerial Digimap, a new Collection offering aerial photography from Getmapping Plc.

Aerial imagery capture dates

Aerial imagery capture dates

The crystal clear imagery from Getmapping is 25cm resolution vertical aerial photography and the most detailed national coverage available. The largest proportion of the imagery dates from post-2011 with updates due every year.

Aerial Digimap offers both a mapping and a data download facility, both familiar to those who already have access to other Digimap Collections.

Aerial Roam offers the ability to view, annotate and print the aerial photographs as well as an overlay function to allow comparison with current Ordnance Survey mapping.

Aerial Roam with Road/Place Name overlay

Aerial Roam with Road/Place name overlay

Aerial Download offers the ability to select specific locations for which to download the aerial photography for use in local desktop software. Data is delivered in jpeg format each with a corresponding world file (.jgw).

You can see a preview of the new service on Digimap’s YouTube channel: https://youtu.be/rAiO4XXRD5Q

YouTube Preview Image

 

How to Subscribe

In order to access Aerial Digimap, your institution must subscribe.  Please contact your local Digimap Site representative, Learning Resources team or Information Services to express your interest, (you can find your site rep details on this help page: http://bit.ly/DigimapSiteReps).

Subscriptions must be requested by an authorised member of staff. Details about how to subscribe to Aerial Digimap can be found here: http://bit.ly/AerialDigimapSubs

Please contact EDINA directly on edina@ed.ac.uk with any subscription enquiries.

Sep 282016
 

kim traynor [CC BY-SA 2.0 (http://creativecommons.org/licenses/by-sa/2.0)], via Wikimedia Commons

Institute of Geography, University of Edinburgh by kim traynor [CC BY-SA 2.0 (http://creativecommons.org/licenses/by-sa/2.0)], via Wikimedia Commons

EDINA’s annual Geoforum conference for all its geospatial services and projects was held at the University of Edinburgh’s Institute of Geography this year. It was attended by nearly 50 delegates who came to find out what we have been up to over the past year and to see what we new things they can expect in the coming months.

The morning session started with talks from Tim Urwin, EDINA’s geo-data manager, and Guy McGarva, from the Geosupport team. Tim’s talk informed us all about the design decisions made when updating the OS MasterMap cartographic style. The new styling, originally developed for the Digimap for Schools service, has some great advantages over the old cartography and was put into service just after the conference:

More Details about the new Cartography

Guy’s talk highlighted the main changes to EDINA’s geospatial offering in the last 12 months. We have mainly been working on things that you can’t “see” in Digimap with huge improvements to the way the service is delivered. We now can make sure that interruptions to the service are rare as it can be delivered from one of two physical locations at the University of Edinburgh.

One obvious change we delivered was the improved Digimap home page. This came about through work to make the service usable on a touch screen or tablet device. To ensure that the service could work on these devices we needed to use new web technologies meaning a redesign had to be carried out. We like the cleaner design but best of all you can now just click on the application you want to use, log in when prompted, and be taken straight to the thing you want to do. No more remembering to log in to the service before clicking the link in your Data Download email!

The next two talks were all about Aerial Imagery as EDINA will soon be launching the Aerial Digimap service. The new service will contain 25cm resolution aerial photographs for the whole of Great Britain from Getmapping.

Firstly we head from Richard Evans from Getmapping who spoke about the history of aerial imagery and also the modern technology and techniques that go in to it’s creation.

Then we heard from Ian Holmes from EDINA, who showed us what the new Digimap Aerial collection would look like. As with the other Digimap collections there will be Roam and Download interfaces to either view the data or to take it away to analyse in the user’s own software.

Ian also highlighted some of the interesting and quirky things captured in the images, such as the shadows of giraffes at Chester Zoo.

Please keep watching the blog and other Digimap information channels for an announcement on when the service will be launching.

After a good lunch spent networking we started on the afternoon session where we heard from two students and two members of teaching staff about their uses of Digimap and data from the services.

Firstly we heard from Trevor Draeseke who told us about his Masters Thesis, Visualising Geographical Information in Augmented Reality.

Trevor’s proof of concept mobile app the “Arthur’s Seat Augment Reality Visualiser” allowed the user to view geological data and other layered geographic information on the live video feed coming from the phones camera. He said his work was made possible by the “easy and flexible access to the underlying geographical information layers through EDINA’s Digimap Service.”

Next we heard from Kathy O’Donnell who is now in the first year of a PhD that is building on her MSc thesis on the Quarries of Hadrian’s Wall.

Kathy has been mixing layers from the various data collections in Digimap: Ordnance Survey, Historic and Geology, to identify where the Romans were quarrying the stone to build Hadrian’s Wall. Kathy’s work is one of the best examples of making use of the various collections we have seen and she is looking forward to hopefully being able to use Aerial Digimap as another important source of data.

After a short break we heard the perspective of teaching staff from the University of Stirling and Lancaster University. Firstly Phil Bartie, University of Stirling, talked about how Digimap Roam was useful for introducing students to digital mapping and and also that it was “very important that students and academics have access to high quality spatial data for teaching and research.”

The final talk of the day came from Duncan Whyatt and Gemma Davies from Lancaster University. Duncan first reminisced on life before Digimap, and how difficult it was to get hold of maps and spatial data. After subscribing they have concentrated more heavily on the data downloaded from Digimap in the Geography Department. Duncan and Gemma took us through the various exercises the students were given using data downloaded from Digimap at each stage of their degree. Duncan stated that “Digimap has underpinned Undergraduate teaching in GIS at Lancaster for 15 years…”

Despite showing how important Digimap is and has been in studying and teaching all four of the presentations contained mentions of what they’d like to see in the future and a final challenge from Duncan to stay relevant in a world with an increasing amount of alternatives. We have heard this challenge and are working with those who fund the service to make sure our offering stays up-to-date and continues to deliver what academia wants. However we would like to remind all users of Digimap to keep letting us know what you want from the service so we have enough evidence to shape future developments in the right way.

A final thank you to all those who gave a presentation, the Institute of Geography for providing a venue, and to all the attendees; we felt it was a very successful event and look forward to the next one in 2017.

If you have any questions, comments or feedback on this post then let us know:

  • Email: edina@ed.ac.uk
Sep 162016
 

This summer our cartographic team have been busy working on a new style for OS MasterMap Topography layer. These are the maps displayed at the three most detailed zoom levels in Digimap OS Roam. The original style, created more than ten years ago, followed the official style published by Ordnance Survey and has undergone little change since its creation. Later this year Ordnance Survey are making significant changes to the underlying MasterMap data so we thought it was high time the cartography was refreshed to give it a more modern feel.

The design brief had three broad requirements:

  • make it look ‘nicer’!
  • tone down the colours to allow annotations to stand out more
  • use the same colours as OS VectorMap Local, the second most detailed data product

The images below show the original and new styling for a number of areas which highlight the improvements that have been made in both urban and rural areas.

Changes to styling in urban areas:

MasterMap urban original stylingMasterMap urban new styling

The colours in urban areas have been muted, removing the large areas of yellow and making ‘unclassified’ land appear with hatching rather than as blank areas on the map.

Improvements in text styling:

MasterMap original text stylingMasterMap updated text styling

Text labels have been updated to emphasise building names and reduce the size of the labels for named urban areas.

Updated rural styling:

MasterMap original rural stylingMasterMap updated rural styling

Styling in rural areas with mixed land use is a challenge as there are multiple types which need to be conveyed to the user. We have increased the number of shades of green and improved the symbol spacing and placement in order to improve the appearance of these areas. Additionally we have changed the fill colour for tracks allowing them to be more easily distinguished from paved roads.

Updated foreshore styling:

MasterMap original foreshore stylingMasterMap updated foreshore styling

Foreshore areas now display using the yellow ‘sand’ colour, making them far easier to visualise.

We hope you like the new style, however the original style can still be accessed from the Basemap menu in OS Roam:

OS Roam MasterMap basemap options

 

 

If you have any questions about the updates or Digimap please contact us:

  • Phone: 0131 650 3302
  • Email: edina@ed.ac.uk