Maps from behind the curtain

Maps are great, I could spend hours looking at them.  It makes no difference if it is a map of somewhere I know well, or a place I don’t know at all.  Cartographic styles vary around the World and it is interesting to be able to explore maps that are in foreign languages or even different alphabets.

Russian Map of Newcastle area

There is a great site that displays Russian maps.  You can view and download the maps and are primarily old Russian Army Maps.  They are fantastically detailed given that they are not created by the national mapping agency of the country they represent.  In fact, the old maps (1950-60′s) of the UK will show military facilities that were deliberately omitted from the map by the Ordnance Survey.  Makes you wonder how they collected the base data doesn’t it.  OK, they would have aerial images, but there would need to be some ground-truthing data.  One thing that I would like to see added to the metadata that accompanies each sheet, is the date the sheet was published.

Anyway, take a look at the site and download maps that interest you.  Not a bad way to spend a cold, dark evening in my opinion.  But then, i am a bit of a map geek.

 Links to historic map viewers

Maps of the World – old maps, mainly military

NLS Maps – archive of old maps brought to you by the National Library of Scotland (GB focus)

Old Maps Online – an expanding archive of historic maps from around the World.

 

Social Networks and Personal Digital Archives – it’s up to you.

Gary Gale, Director of Places at Nokia, was a keenly anticipated speaker on this years EEO-AGI seminar series.  Gary has many years experience in the world of tech and GIS having worked for Yahoo for many years before switching to Nokia in 2010.  Gary is also a self confessed geek who loves to dabble with tech.  He is even happier if that tech includes some sort of location element.

Even on the evening of the presentation, the title was still TBC and it came as a bit of a surprise that the presentation did not focus on maps or what Nokia was up to.  This may have been a little disappointing for some in the audience who were keen to discover how Nokia was going, or planned, to keep up with the battle of the maps between Google and, as referred to on the night, “that fruit based” handset maker.

Instead Gary delivered a  talk on the spiraling generation of data from social applications and explored the issue of who actually own the data.  On the issue of who own the data, he was very clear. As soon as you hit submit you are essentially uploading a copy of your original data be that a photo submitted to Flickr, Facebook or Instogram, a location uploaded to 4Square or Facebook or simply 140 characters taken from your head and submitted to Twitter.  The copy of the data is then the property of the social media network that you have uploaded it to.  Ok, you are the content creator but you have passed the data to the network.  Say it is a photo, you still own the rights to the original which should be on your phone or computer, but you have licenced the data to Flickr under the T&C’s of their service agreement.

Customer or Product?

One way to look at it is in terms of products and customers.  If you pay for a service then you are usually considered a customer.  If you get something for free then are you still a customer?  Probably not.  In the world of social networks you are most likely to be the product. Social networks are not there just to let us connect with friends, they are there to make money and that means selling data and information about their users to companies that want to sell things to us.  Flickr is a trickier one to unravel as it uses a “freemium” model.  You can use the service for free, but for a small fee ($25/year) you can get additional feature such unlimited storage for your photos and better access to your stored data. Certainly organisations, such as GoGeo’s home EDINA, would be interested in a persistent record of activity on social networks such as Twitter and would be willing to pay for a service that does it.

But where is this all going? Well, if you are an active user of social networks then you have probably documented a good part of the last 2-5 years your life in them. This record probably means something to you.  We used to print out our photographs taken on film cameras and pop them in an album that we would then show to friends when they came round for a cup of tea (how very British). Then we moved to digital cameras and printed out fewer images but could still print the special ones or organise them in an album on our computers.  Harder to pass around a group, but our friends would perhaps still pop round to see them.  Now we, according to the upload figures from both Flickr and Facebook, seem to take more pictures on our mobile phones.  Many of us then upload these to a social network which is handy as we seem to lose or break or phones with alarming frequency. And it is this that Gary is worried about.  How can you get the data that you have submitted to a social network back when the worst happens, you loose your own, original copy?  In addition, we would be naive to think that any of these social networks could be considered permanent.  They have grown massively over the last 5 years, but for every one that reaches perceived maturity, many more fail.  Gary asked how many of us remembered Gowalla.  Only a couple of arms were raised.  MySpace?  Once the next big thing, now mainly the preserve of bands. So how can you ensure that you have a back-up of all the data and information you submit to these networks?

Most of the social networks have API’s which allow you to make data requests. However, to access many of them you need to have the user ID and this is not always easy to access. Flickr, Facebook, Foursquare and Instagram all allow access to all submitted data through their API’s.  Twitter does not.  If you judge the ability to retrieve everything you contribute as minimum competence then Twitter fails.  Actually, Facebook would fail, or partially fail as  you cannot get everything out, just the recent (past 2-3 years) content.

Personal Digital Archives (PPA’s)

Fortunately there are some clever folk out there who are also concerned about this and have built applications that will archive your stuff for you and keep it safe.  Importantly, this copy will be independent of the social network it was originally posted to. These services are being referred to as Personal Digital Archives (PPA’s). Furthermore the nice developer chaps and chappesses are distributing their code through GitHub, making it publicly available.  Grab it and use it, or grab it and adapt it. Even better, grab it, adapt it and then share it. Examples of these PPA’s include:

Parallel-ogram – a web app which archives your Instagram photos and likes to make it far easier to look back at them later. The app uses Instagram’s API to monitor all of your activity on the site, both private and public, and creates your own personal photo stream.  The app isn’t hosted, you will need to install it on your own computer or a web server.

Parallel-flickr – parallel-Flickr is a tool for backing up your Flickr photos and generating a database backed website that honours the viewing permissions you’ve chosen on Flickr.

Privatesquare – privatesquare is a simple web application to record and manage a private database of foursquare check-ins.  Check-ins can be sent on to Foursquare (and again re-broadcast to Twitter, etc. or to your followers or just “off the grid”) but the important part is: They don’t have to be. You still have the record of where you were and when.

Twitter – Twitter is a bit different, no surprise there.  What you can do is set up a RSS feed from your account and then pass this into something like Google Reader.  Then archive the tweets from there. You can also do this from lists that you set up allowing you to archive tweets from other users.

Big Brother?

So why might you want to do this?  Well some people are very interested in archiving their digital history as it provides memories and triggers for memories.  But Gary highlighted how digital data is being used by government and how it can be used to prove that perhaps you were not somewhere at a particular time.  Gary gave an example of a friend who was a suspect in a nasty assault in London.  He had become a suspect because he happened to swipe into a tube station at about the right time late one evening.  Fortunately he was able to use other digital information to show where he had been, what he had been doing and what he did next.  This is not an isolated case and it seems that the authorities use digital data as fact and get you to prove or disprove it. Is this a change from innocent until proven guilty?  Certainly some of the digital data would be dismissed as coincidental or just plain wrong but the onus is on the individual to provide an alibi.

So, overall I think this was a very good talk that explored many interesting aspects of social media data and ownership.  If you want to find out more about what Gary has been upto then he can be found on twitter as @vicchi and has an active blog.  This presentation and some text to go with it can be found here.

The next EEO-AGI seminar will be held on the 23rd November and will be on Humanising Archaeological GIS and will be presented by Prof. Gary Lock.

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Other cool things to look at:

Yourls – YOURLS is a small set of PHP scripts that will allow you to run your own URL shortening service (a la TinyURL). You can make it private or public, you can pick custom keyword URLs, it comes with its own API. You will love it.

Donottrack – Do Not Track is a technology and policy proposal that enables users to opt out of tracking by websites they do not visit, including analytics services, advertising networks, and social platforms. At present few of these third parties offer a reliable tracking opt out, and tools for blocking them are neither user-friendly nor comprehensive. Much like the popular Do Not Call registry, Do Not Track provides users with a single, simple, persistent choice to opt out of third-party web tracking.

 

Pearltrees – wisdom on the net?

The internet is full of information, not all of it is exactly what you would call useful.  However, sometimes you stumble upon something that is actually useful.  Today is one of those days.

Heard of Pearltrees?  Neither had I.  If seems to be a social media site that allows users to organise stuff that they have found on the internet.  This is nothing new, remember Delicious?  The neat thing with Pearltrees is that it looks like it is using Linked Data to tie “things” together making it easier to explore resources and make links between subject areas.

So what, Linked data, yawn.  Well I was lucky enough to stumble upon a user by the name of drbazuk who has collated a host of useful GI links on Pearltrees.  I have had a quick look at some of them and have bookmarked his page to delve into tomorrow.  I suppose if i was sensible, i would be signing up and collating my own set of resources for GoGeo.  Before i do this, i suppose i should have a bit of read about exactly what Pearltrees is all about.

Explore by Place: A New Way to Browse JISC MediaHub Content

Explore by Place is part of the Explore area of JISC MediaHub (http://jiscmediahub.ac.uk/explore) where you will find a number of different ways to browse and explore interesting images, video, and sound.

Image of the Explore By Place Function

A preview (click for a larger view) of the new JISC MediaHub Explore section. The Explore headings in purple are our newest additions: Explore by Place and the recently released Explore by NewsFilm.

How does Explore by Place work?

Explore uses geographic information, which we have for many but not all items in JISC MediaHub, to create a map of the world that connects the image, video or sound to the place it was shot or created. The first screen you will see is a map of the world centred on the UK and Northern Europe:

Image of the Explore by Place map

This is the first screen you will see when you choose to Explore by Place. It shows an interactive map of the world centred on the UK.

From this map you can zoom out to explore other areas of the globe or you can zoom in to explore content from the UK. The map works just like Google maps: you can use the scroll wheel of your mouse, or the + and – keys on your keyboard, to zoom in and out. If you want to move around the map just click and drag or slip the map around so that is focused where you want it to be.

At every zoom level you will see different icons. Circular pins with a number on them indicate the number of items in a large area. If you click on these circular pin you will be automatically zoomed in closer to see the locations of those items. The other icon you will see is a JISC MediaHub logo which indicates that you have reached the content in this geographic area. Click on the logo to see previews of all images at that location. You can page through multiple images using double arrows like those on the JISC MediaHub front page.

Zoomed in image of Explore by Places

When you zoom into the map you will see two different types of markers. The circles are clusters of located items, the JISC MediaHub icons indicate an exact location of image, video or sound content.

When you find an image, video, or sound clip you want to find out more about just click on the preview and you will be taken to the full record for that item where you can find out more and, if logged in, download it.

If you want to search around a particular location look for the nearest JISC MediaHub icon and, if there are too many images to browse through, click on “search on this location” to open up a search results page where you can filter the images in the usual way. This is particularly useful if there are a large number of images at one point on the map – for instance a collection from Wick in the Highlands has over 7,000 images at one location:

An image of Wick Search Results

Wick, in the Highlands of Scotland, is home to a large number of images so is a good example of where “Search at this location” may be useful.

 

 

Geograph’s impressive milestone

In a guest blog post, Darren from the Ordnance Survey Eduction Team tells us about a key milestone of the Geograph project.

A national online photography project supported by Ordnance Survey reached a major milestone this month.

The Geograph project aims to capture an image for every grid square across the British Isles and the project has now registered its 3 millionth image.

11,000 users across the country have contributed images in the 7 years the project has been running.

Geograph is a fantastic free resource for schools to use.  All the images within the site are geo-referenced to an OrdnanceSurvey map.

It allows teachers to access images from northerly point of Shetland to the Scilly Isles in the south the site shows photography covering 80% of the grid squares across British Isles.

View the 3 millionth image – http://schools.geograph.org.uk/photo/3015547

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Inspiring maps – Jerry’s Map

Anyone who loves maps remembers clearly when their obsession started.  For me, it was spending hours poring over a tattered Reader’s Digest Atlas tracing the mountains, glens, islands and lochs of Scotland and exploring far flung places that were a million miles away for me.  Today, watching this video of Jerry’s Map, has reminded me of that original feeling of inspiration from exploring my atlas and the joy of discovering the world of maps.  Jerry spends his days working on a map built from his imagination.  It’s incredible and a wonderful example of the beauty of maps.

Click here to view the embedded video.

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Caching and OpenLayers Mobile Code Sprint

We think that a key feature for a mobile mapping application is the ability to view maps offline. One of our key use cases, a educational field trip exercise, requires access to maps in locations where network connectivity might be poor or non existant. Having access offline also widens the kinds of device we can use to include WiFi only devices such as the iPod Touch and no SIM iPad tablet.  Threfore we’ve been working hard over the last couple of months on working out how we can cache maps.  We’ve made alot of progress on this, developing the caching ability in the TouchMapLite library to be more robust and work with our WMS mapping server.

This is possible in a web app environment thanks to 3 seperate  HTML5 initiatives that assist web developers in caching data listed below.

It’s quite easy to get these three flavours of caching mixed up (I’ve done so myself), so one of our engineers has blogged on the subject, explaining what each one does and offering some very helpful hints and gotchas. The first post focuses on the Application Cache, with similar posts on SQL database and Web Storage to follow shortly [update 22 feb 2011: Our engineer has now blogged part 2 ( web SQL database) and part 3 (Web Storage) – some very useful comparisons.

We are going to share the techniques we’ve developed for caching maps during the upcoming OpenLayers Code Sprint in Lausanne later this month. It’s really great to see the OpenLayers development community tackling mobile in earnest this year. Respect to CampToCamp and other sponsers for organizing and sponsoring the event. Geomobile is looking forward to sharing progress with its readers!

OpenStream WMS service for ac.uk

A new web mapping service is now available that makes the Ordnance Survery Open datasets available through WMS. The service offered by EDINA is initially available to anyone with an “ac.uk” email and requires a simple email activated registration. Other than that, there are no restrictions on use. The website includes an example mapping app using OpenLayers and isntructions on how to use the service with Google Earth. We also created a mobile app using this datasource, as described in a previous post on the TouchMapLite interface.

the data products available are:

  • GB Overview
  • Miniscale
  • 1:250000 Colour Raster
  • Vector Map District Raster
  • OS Streetview

you can register for the service (initially ac.uk email addresses only) here.

If you would like to find out how you can use Digimap OpenStream with desktop GIS you should read the Go-Geo! Blog.