Archive for the 'Free Data' Category

On freeing data, unwillingly

So 10 days ago now, the UK Government announced that they would be freeing up some Ordnance Survey data as part of a “drive to improve transparency”. You can read reactions to this all over the geospatial blogs (see Mapperz excellent round-up), some ambivalent, others mostly positive.

Me, I’m with the ambivalent crowd. On one level, assuming it’s actually useful datasets made available, and assuming we get to use them how we’d like to (using it in our internal GIS, for example), it will be great, and my colleagues will find their jobs considerably easier. However, like a lot of things the UK Government has done recently, this was handled badly (the lack of Ordnance Survey input into the original announcement,  speaks volumes). If it’s not going to be done willingly, will we see the same quality? The same commitment to survey the rural areas? Presumably, the cost of the remaining datasets will go up to cover the projected loss of revenue (whatever that is), so a lot of small businesses could end up in a worse situation than they are now- with expensive data that they can’t afford, or free data that’s not fit for purpose because it’s not complete or recently updated. Like Peter Batty, I don’t want our data brought in line with that of the US, as it’s currently much better!

I’m glad there has been a change, as I broadly support the Free Our Data campaign, and have done since it started, but I wanted it to be well thought through and planned for, and not a snap decision to try and win some votes. How naive of me…

I’m also concerned, like Peter Batty, about the affect on OpenStreetMap. I’ve been an enthusiastic convert to the benefits of OSM, since hearing of Muki Haklay’s completeness studies, and with seeing some of the beautiful maps and really cool innovations that it has spawned recently. At conferences in the UK this year OSM felt like the juggernaut it was impossible to ignore, and why would you want to?  OSM is now a valuable part of the UK geospatial ecosystem and I would hate to see that change.

New business strategy from the Ordnance Survey

Via the Guardian’s Free Our Data Blog, but with remarkably little fanfare elsewhere- the UK Government have released their new strategy for the Ordnance Survey. The results have the potential to be really good, but might also be a bit of a damp squib. The big concession is an extended OS OpenSpace service:

It will provide greater access to free use of a number of Ordnance Survey products from 1:10,000 scale through to 1:1 million scale. It will also include official boundaries information.

This is good news, though not as forward thinking as I’d like, unless the terms and conditions for the use of Open Space change dramatically. In my dreams, they are going to release their mapping via WMS- after all it would save them having to ship out all those update cds every year…

The new pricing strucure for full data access will be out in October, apparently. I’m not holding my breath for any nice friendly educational-charity fee structures though, since the whole document seems to assume you’re either an individual (read hobbyist) or a commercial company, and the trouble with educational charities is that we don’t really fit into a sensible box like that.

What’s nice though, is that the whole document is available online as a commentable document. Not sure how much notice will be taken of feedback, but it’s a start!

Free the facts!

From the O’Reilly Radar blog comes this great presentation from Dave Gray, which as Tim O’Reilly says himself

is a must-read, must-share for anyone who cares about either science or open access.

It’s also one of the most engaging “powerpoints” you’ll see in a while, showing that it’s possible to have something with lots of text, yet still be interesting and attractive. Give it a go and tell your friends!

This week has been mostly about web-mapping

I started off this week with the intention of resurrecting and upgrading a demo openlayers map of all our sites, that had been stuck in a sorry corner of our corporate website being neglected. This tied in with moving the map to a different server, upgrading all the components, and generally giving it a shave and a haircut (it is male, that’s for certain). For those people interested in our wms and wfs data- these will be online again soon, I promise.

While I now have a site up again, pretty much ready to go bar the shouting, I’ve had an interesting time playing with some new toys in the process, so here’s a quick run-down:

  • Mapfish and GeoadminSuite: A funky framework for widgetising openlayers. Geoadminsuite connects mapserver, openlayers and mapfish to manage data and create really nice mapfish applications. Way cool. Progress so far- it’s all up and running, though GeoadminSuite had teething troubles that have hopefully been sorted in the latest svn release.
  • Openlayers: OK, so I’m just catching up with the latest release after ducking out for a while to do “real work”, but I have to say I like the new(er) features. It was nice to be able to do popups without needing to re-write the code for every version of every flavour of browser. That’s not openlayers’ fault of course, just issues with “standards” for things like DOM, which I don’t claim to understand.
  • Openstreetmap WMS data from Wheregroup: Comes in free and paid-for flavours though details on pricing and terms of service for the commercial version were sketchy on a first skim of the website. This could be really handy to use as background mapping data for web maps, although there are issues of completeness (as always) and it probably needs running through our own mapserver to sort out the styling. This is definitely a goer- I just need to figure out which of the 50 or so layers they publish are really necessary and at what scale. And some kind of completeness metric, so we know how reliable the data is for a given area…
  • Openstreetmap shapefiles from Cloudmade: A reduced dataset for the UK, with less layers. This might be a better option for us to use as we can control the styling better at the source. As a cheat, I’m going to load it all up in Quantum GIS, style it there, and use the mapserver export plugin to quickly build my map file.
  • Mapnik: One of my colleagues would very much like us to create our own openstreetmap wms server, and use mapnik. I’d love to, as the cartography is really good, but after diving into it today, I have to say I think I need some hand holding before I can actually make it serve maps. We’ll see…

Also rans:

  • Ordnance Survey have changed the licensing for their OpenSpace product: You still need a license to use their data, but you can download the development kit from sourceforge. The license has also been changed to have more “clarity” in terms of the ownership of derived data. It would be churlish to suggest that this has anything to do with the “Show Us a Better Way” mess up, wouldn’t it? The problem is, you still need to pay for the background data, so we’re back up to points 2 and 3 above…
  • Amazon launches public datasets: This, in my limited experience, seems to be a duplication of ideas that are already out there. That’s fine when it’s software, and you want to stomp all over your rivals, but wouldn’t it have been nice for them to give their support to an existing data repository?

Things to play with next:

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