Andrew Map selection

My web presence

Sunday, 30 March 2014

... now HOW open is open?

A lot of (virtual) ink has flowed around opening up data, as in this blog, GISuser crowdsourcing open data (below left) etc. etc. And everyone is getting into the act, from White House (below center) and Whitehall (UK Cabinet Office) to the number of open data hits (below right).

click image to enlarge

In his blog GeoHipster co-authored with Glenn Latham, Atanas Entchev teased out of Andrew Turner how Esri see openness - they support it for sure but from their own business perspective - they are providing countless tools, say, on, github, Java and OpenStreetMap, but it's still for Esri services.

click image to enlarge (highlight mine) or go to web log here

So to show a web that is truly open as Volunteer Geographic Information, I end up serving up free data on or AWS via Geocloud2 stack - see this blog and my companion catalogue for examples - note that this is distinct from posting data on Google Earth & Fusion Tables,  ShareGeo or
Google's Ed Parsons quipped: "uploading data is so, yesterday."

But wait! All is not clear sailing to re-post public maps either... Often you can freely access them, but can you add them to your web app?
  • The National Scottish Library posts historic Ordnance Survey data in a cool Google map index - at various scales and vintages for search and download - but how can I add them to my AWS?   

click image to enlarge or go to web map here

  • The British Society for Eighteenth Century Studies put a lot of work to geo-rectify, clean up, collate and make available geo-historic data for London - crime, disease, population etc. can be searched, tabulated and mapped beautifully - you can export tables but again, how can I add it to AWS?

click image to enlarge or go to web page here 

However wonderful these maps are, they isolated too... And  while Google and Esri profess faith in an open web - they are joined for example in -  #freeandopen means different things to different people. This blog and its companion catalog are dedicated to truly opening up web mapping.

click image to enlarge of go to web log here

Sunday, 16 March 2014

Sunday, 23 February 2014

Global Sailings (1662 - 1856, English, Spanish, Dutch, French) revisited

I originally extracted CLIWOC (CLImatological database for the World's OCeans) ship captains' logs ships locations over a decade ago, to demonstrate the processing of 250K+ points in ArcGIS desktop using then new File Geodatabase. Five years later I posted this on my old website with instructions how to use it in  old ArcGIS Explorer and KML, and then I put a layer package on - both related historic details like de laPerouse's demise below, the importance of data standards and metadata, and the interst it generated elsewhere - more recently I posted a time-based variation of same, where using a time slider helps clarifiy complex data on desktop GIS.

Tuesday, 11 February 2014

Sunday, 2 February 2014

Map catalog page 4

My map catalog also works well to post new projects: added British Geological Survey web mapping services to East Anglia web map, in order to compare historic and current geology. The Snapshot format also give a variety of viewing options of the catalog.

Sunday, 26 January 2014

Map catalog continued

In my ongoing suite of posting webmaps in my new and fresh Mind the Map blog, here is another take on loading global vectore megadatasets but this time on Amazon Web Services direct via Mapcentia's GeoCloud.

Saturday, 18 January 2014

Standards & Metadata, Part VIII

My previous post on this topic stated how careful documentation and appropriate metadata high-grades any information that is shared online by giving origin, context and other information. It helps build bridges and I quipped a well-known tear down this wall that also closed my second last post on free data and apps.

Sunday, 12 January 2014

More map catalog

Last week was the inaugural post of my catalog, highlighting maps from this blog in (very) roughly reverse chronological order. The second entry make the display options more evident, as this is meant to be a light and flexible version of this more complete blog. I am not about to end its success quite yet, and have no fear I will post items of substance as well as cross-links to the catalog until it has its own followers.

Sunday, 5 January 2014

Andrew Zolnai map catalog

Happy New Year! Don't you think that 175 blog posts and almost 150,000 page views over 7.5 years merit a catalog of my maps? This also coincides with my first end-to-end project:
  1. collect on the desktop
  2. disseminate and receive feedback via social media
  3. post as a webmap on private AWS account

Sunday, 15 December 2013

Releasing data really works, Part V

It took five days (after hours) to stand up, learn, tweak and display my East Anglia Fenlands project on Mapcentia's web service. It started with a GISuser group post on LinkedIn on Monday, I used my Amazon Web Service free EC2 trial and GeoCloud2 under beta, and by Friday I had it working and styled. No small thanks to Martin Hogh's original work and help, the result is a simple yet modern and pleasing web map.