Monthly Archives: July 2010

New course material on visualising data in R with ggplot2

Hadley Wickham, creator of ggplot2, a R package for data plotting and visualization using R, posted slides, data and code of two short courses on the web. There are 5 sets of slides, covering the following topics:

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Nice step by step tutorial how to create an Open Source Web Map

Ever wanted to create an open source web map but not sure where to start? The short tutorial ‘Blueprint for Creating an Open Source Web Map‘ by Michelle Ballinger might be just what you are looking for. This tutorial “takes … Continue reading

Posted in online mapping | Tagged , , , , | 2 Comments

MapTiler to create online maps

For a project a few years ago we created a vegetation map for central and southwest Kenya (see for more information). The map together with documentation was initially made available on CD-ROM. I also created an online map. Apart … Continue reading

Posted in GIS, online mapping, vegetation | Tagged , , , , , | 2 Comments

TACCIMO – a template for Assessing Climate Change Impacts

Collecting and producing data is one thing, combining it and making it easily accessible and useful for the end-users another. The Template for Assessing Climate Change Impacts and Management Options (TACCIMO) is a nice example of a Web-based tool that … Continue reading

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Adding Google or OpenLayers maps to your Desktop GIS

Although Google maps and other online mapping tools become more powerful, it is not always easy or straithforwards to use these tools to combine offline maps with online maps from e.g., Google or Yahoo maps. Tools like ClickFu in QGIS … Continue reading

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