Shapefile or geodatabase?
A nice overview and comparison of the shapefile, personal geodatabase and file geodatabase over at the guys at GIS Geography. Its a good succinct summary and review of the pros and cons. They do note that the file geodatabase is proprietary (to Esri), but not that the shapefile is too. And whilst (quitea while ago) Esri published a whitepaper detailing the specification of the shapefile its worth noting that they have released the API to the file geodatabase as well.
posted on: Tue, 29 Nov 2016 | path: /GIS | permanent link to this entry
Get ahead in QGIS ...
I've already blogged about Steve Bernard's excellent YouTube Channel on QGIS, well to continue in that vein, here's a link to a series of free (and paid for) courses in QGIS over at GeoAcademy. I cant vouch for the courses themselves, but it's great to see such variety springing up. QGIS is my goto for geoprocessing on a daily basis...
posted on: Sun, 20 Nov 2016 | path: /GIS | permanent link to this entry
This week a selection (well list!) of two relatively recent resources which struck a chord.
1. cartographic-design: this is hosted over at Github and is a series of links to cartography sources that supported Maptime Boston's May 2016 meetup....
posted on: Mon, 31 Oct 2016 | path: /GIS | permanent link to this entry
Swiping in QGIS
I quite often find myself compare two images or a vector layer overlying a raster layer and, for me, a swiping tool is tremendously helpful in doing this....
posted on: Tue, 27 Sep 2016 | path: /GIS | permanent link to this entry
Give a beep...
Give a beep is a great example of citizen science, geographically volunteered information and the ability of everyday "users" to influence politicians....
posted on: Mon, 26 Sep 2016 | path: /GIS | permanent link to this entry
Historic London Underground
I was at the London Transport Museum in Covent Garden recently and saw a nice animation of the historical development of the network. With all the underground mania in mapping, I liked this because it's one you see much less often and provides a nice historical perspective on the growth (and decline) on parts of the network. I couldn't find the animation that TfL used, but did come across the site of graphic designer Doug Rose who has produced a similar animation. So click here to view the map itself which (unfortunately!) uses Flash video. Quite fascinating.
posted on: Mon, 05 Sep 2016 | path: /GIS | permanent link to this entry
Reading Landscape :: art production by Fine Art and Geography Students, Kingston University
And following on from our "Reading Landscape" project I blogged about last week, here is the video out we presented for the first time at the RGS-IBG Annual Conference last week....
posted on: Sat, 03 Sep 2016 | path: /GIS | permanent link to this entry
Indy100 have a great static (below) and interactive map of the countries Boris Johnson has insulted - without a doubt this can only be added to. Just look at the vast opportunity in South America for starters!
posted on: Fri, 15 Jul 2016 | path: /GIS | permanent link to this entry
D3 Map Projections
A great post showing the range of map projections available in D3.js - a nice view for a "nearly at the weekend" day!
posted on: Thu, 14 Jul 2016 | path: /GIS | permanent link to this entry
"The Geek Behind Google's Map Quest"
The Geek Behind Google's Map Quest - and yes, it all started at Kingston!
posted on: Thu, 07 Jul 2016 | path: /GIS | permanent link to this entry
OS Blog Redux
And a nice follow-up to last week showing the recreation of a favourite map using modern data by Charley Glynn. Charley has selected a 1967 quarter inch map of Scotland which is fairly small scale and quite good as a road map. The colour ramp for elevation is beautiful with the font and label placement elegant. Read the workflow - always interesting to see how people work!
posted on: Wed, 06 Jul 2016 | path: /GIS | permanent link to this entry
OS Blog Links
A couple of nice blog posts from the OS... the first looks at the Top 10 mapping moments in OS history....
posted on: Wed, 29 Jun 2016 | path: /GIS | permanent link to this entry
R Project for Maps
A nice primer on R Project for Maps which provides a good introduction on the use of R for a range of GI applications, be they webmapping or raster analyses. The list of libraries and discussion of Microsoft R Open is particularly good. Worth a delve into.
posted on: Sat, 11 Jun 2016 | path: /GIS | permanent link to this entry
"A Digital Humanities Primer for English Students"
Thinkwhere provide a nice summary of A Digital Humanities Primer for English Students, a guide written by an MA student Jenna Herdman....
posted on: Thu, 09 Jun 2016 | path: /GIS | permanent link to this entry
Occupations associated with what.....
..what indeed?? Read here to find out, but, as they say, a picture tells a thousand words (data caveats excepting in the linked post).
posted on: Thu, 12 May 2016 | path: /GIS | permanent link to this entry
QGIS at the Financial Times
A really interesting interview with Steve Bernard, Interactive Design Editor at the Financial Times. There are some great examples of work he has produced for the FT which principally involves QGIS and Adobe Illustrator. He is hugely enthusing of QGIS, so much so that he has a YouTube Channel dedicated to demonstrating the methods/effects he uses. Check it out as at over 30 videos now its a veritable resource.
posted on: Fri, 06 May 2016 | path: /GIS | permanent link to this entry
Esri: 6 Easy Ways to Improve Your Maps
Some really helpful cartography tips from staff writer Lisa Berry on 6 Easy Ways to Improve Your Maps. I particularly like point 2, Find Signal within the Noise, which is pertinent to any kind of exposition. What is your main point and highlight it.... demonstrate you signal.
posted on: Fri, 29 Apr 2016 | path: /GIS | permanent link to this entry
Maps.Me Adds OpenStreetMap
Great news from Maps.Me developers. The slightly more minor news is that theyve gone much more granular for map data downloads - so now you don't have to downloads 800Mb of data for the UK, but pick your regions. Much better.
The big news though is the ability to feedback map updates to the OpenStreetMap community directly through the app. Now that really is a brilliant way to improve PoI information. You can both add new points and edit point information.
Not only is Maps.me a great offline map app but you can now give back to the community.
posted on: Wed, 06 Apr 2016 | path: /GIS | permanent link to this entry
GISgeography: Quick Sheets
GISGeography have some great "quick summaries" or quick sheets as I like to call them. They are short, focused, "explainers" usually with good use of graphics and links to other sites....
posted on: Sat, 02 Apr 2016 | path: /GIS | permanent link to this entry
OK, so it's another hackneyed take on the well worn tube map meme, but the Londonist's Lost London is a wonderful trawl down memory lane with the map providing location for those not so familiar with London. It's history, tourism and discovery all rolled into one and well worth spending 10 minutes looking at. Then go and visit some of the places!
posted on: Sat, 26 Mar 2016 | path: /GIS | permanent link to this entry
OS Maps Mars
Yes, the OS Maps (some of) Mars in their own inimitable style... great bit of PR!
posted on: Mon, 15 Feb 2016 | path: /GIS | permanent link to this entry
Repost: QGIS Features I long for while using ArcGIS
A really good post about known and not so known QGIS features that will make ArcGIS users weep....
posted on: Fri, 29 Jan 2016 | path: /GIS | permanent link to this entry
Came across the Mapumental service recently. Mapumental comes out of mySociety and the basic rationale is to take public transport timetables, link them to underlyingOS postcode data and then display isochrons using Leaflet with underlying OpenStreetMap data....
posted on: Tue, 26 Jan 2016 | path: /GIS | permanent link to this entry
Timelapse: 3. Video Production
This is the final blog in the series on producing an inset map for a timelapse video (see also Geocoding and Map Production)....
posted on: Tue, 29 Dec 2015 | path: /GIS | permanent link to this entry
Timelapse: 2. Map Production
This is the second in the series on creating map overlays for timelapse videos from a series of photos....
posted on: Thu, 24 Dec 2015 | path: /GIS | permanent link to this entry
Timelapse: 1. Geocoding
Following on from last week's blog, the first stage in putting together the timelapse video with inset map is to geocode the photos....
posted on: Mon, 21 Dec 2015 | path: /GIS | permanent link to this entry
Timelapse: Creating an Inset Map
Last month I blogged about an update to my workflow for creating a timelapse and particularly adding overlays (both graphics and text from EXIF data) and solving problems with dates being out-of-sync by timeshifting them....
posted on: Fri, 18 Dec 2015 | path: /GIS | permanent link to this entry
I was using the CLustre code recently for analysing some lineaments and it reminded me to update to the latest version of WinPython (which I covered at the AGI)....
posted on: Wed, 09 Dec 2015 | path: /GIS | permanent link to this entry
Repost: Cartographer's Toolkit
A really nice blog translating and re-posting visual thresholds when viewing graphical features (for cartography). Useful.
posted on: Mon, 07 Dec 2015 | path: /GIS | permanent link to this entry
Journal of Maps Best Map 2015 (FREE to view)
It is with great pleasure that I am able to announce the award of the 2015 "Best Map" to Vít Pászto, Albeta Brychtová, Pavel Tucek, Luká Marek and Jaroslav Burian (Palacký University) for their map using fuzzy logic to delimit rural and urban areas in the Czech Republic....
posted on: Mon, 07 Dec 2015 | path: /GIS | permanent link to this entry
Open Source Roundup
Following on from my talk at AGI yesterday, a few open source posts came up at the helpful GISGeography. These include:
Free GIS Software: Map the World With Open Source GIS Mapping Software
10 Open Source Remote Sensing Software Packages
Mapping Out the GIS Software Landscape
27 Differences Between ArcGIS and QGIS The Most Epic GIS Software Battle in GIS History
All make for helpful reading!
posted on: Wed, 25 Nov 2015 | path: /GIS | permanent link to this entry
Just a reminder that the AGI's GeoCom15 is coming up 23-25 November 2015 at the rather swish Chesford Grange Hotel just outside Kenilworth. Remember that its both the conference and exhibition, the latter of which is free to wander around, so no excuse not to register and come along to see myself and Prof Nigel Walford from the Centre for GIS speak.
posted on: Sun, 15 Nov 2015 | path: /GIS | permanent link to this entry
This news article reminded me that I should provide a brief update on Maps.Me (which Ive blogged about before) which is receiving a good roadmap of development....
posted on: Thu, 29 Oct 2015 | path: /GIS | permanent link to this entry
..... has just landed. See the changelog for the new features which continue to be extensive and useful, for example rule based labelling and rule based styling of attribute tables.
posted on: Wed, 28 Oct 2015 | path: /GIS | permanent link to this entry
Free GIS Data
Great long list of free GIS data resources from Robin Waters. Something for everyone!
posted on: Wed, 21 Oct 2015 | path: /GIS | permanent link to this entry
Redux: think you know your countries?
As a follow on to last weeks Think you know your countries? blog, have a visit to TheTrueSize.com where you can select countries and move them around a mercator map at will to compare them to any other country. How big is Germany, really, compared to Angola??
posted on: Sun, 04 Oct 2015 | path: /GIS | permanent link to this entry
Think you know your countries??
Then try your luck with the Mercator Jigsaw - took me about 5 minutes with some distinctly tough ones in there. And - goddamn - that Mercator projection can be problematical ;)
posted on: Fri, 02 Oct 2015 | path: /GIS | permanent link to this entry
Mapping the Syrian Conflict
An interesting short piece over at the BBC about mapping the Syrian conflict - what is interesting is the BBCs lack of understanding about how data, (online) mapping and journalism are merging together to create a new generation of (often (remote) citizen) data journalists....
posted on: Thu, 10 Sep 2015 | path: /GIS | permanent link to this entry
EA DEMs Data Precision
UPDATE: An illuminating and quite hilarious read over here. The release of the LiDAR sourced EA DEMs is garnering some nice attention around the world although Martin spotted that the elevation values are recorded to a precision of attometers. Yes that's 15 to 17 digits after the decimal point!! As Martin points out, this is a huge waste of bandwidth and, I imagine, a default export setting. As I noted yesterday, the interface is functional, if a little clunky, and could do with some improvement.
posted on: Thu, 03 Sep 2015 | path: /GIS | permanent link to this entry
EA DEMs of UK
As I noted earlier, the EA has now made its 50cm DEM data of the UK available at Data.gov.uk. You can find both the DSM and DTM 50cm products.... From either page you'll eventually get to this download page which is a touch slow but works well enough where you can download fairly small OS tiles (shame they cant be bigger). Ill be playing with these over the next few weeks to see what they are like.
posted on: Wed, 02 Sep 2015 | path: /GIS | permanent link to this entry