Andrew Zolnai Blog

As I went solo in the new year, I collected my previous works  also seen in the banner map gallery, and posted the Esri maps as a map story....

[ Update: a simpler workflow that uses  for-fee & for-free software is posted  here ] After intoducing the process to extract, trans...

I showed a couple of months ago  ways to post mega-datasets online without choking the system. This month OSGeoUK gave me the opportunity t...

[ Update: Talend made the  early version complex, so  simpler  one was posted later ] Have you ever been given plain text geodata and wo...

Social media really work!  +Vicky Gallardo  posted on Google+ that  the map is not the territory, with a wonderful big data map by Ben All...

The last 6 blog posts over the last 3 months chronicled the use of dynamic maps using time attribute - years for historic ship tracks and wi...

Earlier posts chronicled the history  even the beauty of historic shipping and climate data from CLIWOC. British, Dutch, French and Spanis...

I showed recently  how CLIWOC weather data from ships captains logs dating 1662 to 1885 totalled almost 1/2M points. It started with a 1/4M ...

[ Update1 : longhand version posted on my map catalog blog Update 2 : companion Slideshare  delves into technical issues] This is the end...

Last month related the stumbling blocks in posting too much data on arcgis.com - time animation pushed the limits of stock web service even...