Tag Archives: OpenHeatMap

When to use shape maps in data visualisation: part 2 of a great big guide

maps xkcd

xkcd’s take on mapping, via Duarte Romero

In a previous post I explained some of the considerations in deciding to use a map in data visualisation, and went into detail about mapping points and heatmaps. In this second part, taken from the MA in Online Journalism at Birmingham City University, I’m going to look at other types of maps: shape-based maps and image maps.

Mapping shapes

A more ambitious alternative to mapping points is to map shapes: in other words, instead of each data point being placed on a specific point on a map, instead different areas on that map are drawn and coloured/labelled according to the relevant data. Continue reading


Playing with heat-mapping UK data on OpenHeatMap

heat mapping test />

Last night OpenHeatMap creator Pete Warden announced that the tool now allowed you to visualise UK data. I’ve been gleefully playing with the heat-mapping tool today and thought I’d share some pointers on visualising data on a map.

This is not a tutorial for OpenHeatMap – Pete’s done a great job of that himself (video below) – but rather an outline of the steps to get some map-ready data in the first place. Continue reading