Guy Roberts

A thematic map is one where regions are coloured according to some statistic, for instance unemployment rate or the population density.
Here is a way to generate your own google maps with thematic overlays, log in with demo/demo.
The data is currently random, I will make it possible to upload your own datasets. […]

As I dug over my compost heap a flurry of bees flew up from inside. I felt guilty about disturbing them and gingerly put what was left of the nest into a big plant pot. Over the next few weeks my little insect friends went peacefully about their business and built a much […]

I have built and hosted a new web site for the Community Accounting Network, a national association of organisations offering financial and managerial advice to voluntary groups.
The site is built using Drupal and a MySQL database. I also use some Ruby scripts to do some periodic housekeeping.
The administrator can use Drupal to add and […]

Earlier this year I worked with some clever people in Nottingham on a project for the Geological Society of London. The Rock Cycle is a quiz for school children and my role was to write a set of templates that the geologists can use to set Multiple Choice or Fill the Gaps quizs. […]

My flying is slow and calm, but the fellas in this You Tube video do it differently. Some of the sequences leave me wondering how they got out of that, and the glider turning low over trees looks like its about to spin in. Great skill, but great risks too.

Here is the current state of play of a trial site to produce thematic maps on the fly using Google Maps, Ruby on Rails and Java.  A long list of tasks need to be completed before its useful, not least fixing the way the map tiles look under IE (try Firefox - it handles PNG files […]

Since the start of LSORA in 2004, we’ve used MapXtreme for Java to draw thematic maps in real time. This can work fine, but it can also be reaaaaaly slow.
So I’m looking for a way to do thematic maps with Google Maps, and this is my best effort so far.