Category Archives: online mapping

From multiple rasters to one Google earth layer

To create a Google earth map, I would normally export my raster layers as a geo-referenced png file and subsequently use maptiler (or gdal2tiles.py) to create the Google earth map (see here for more details). Because I want to create … Continue reading

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Visualizing confidence in data on map: example of SoilWeb Mobile

See this post for a nice example how one can display the level of confidence in the data presented for a mapping unit on a map. The SoilWeb provides the distance from the nearest map unit polygon boundary. It gives … Continue reading

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Looking for historical maps of the Netherlands

History, nature and land use changes, it all comes together in ‘Verborgen wildernis’ (Hidden Wildernes) by Kester Freriks. It is a book describes about twenty five former ‘wildernesses’ in the Netherlands, in their current and historical context and based on … Continue reading

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MapTiler to create online maps II

In an earlier post I wrote how I created a mash-up map with MapTiler. There is an option in MapTiler to set transparency for a color, but this didn’t work for me at the time. I therefore created a small … Continue reading

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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

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MapTiler to create online maps

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

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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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A vegetation map in OpenLayers

For a project a few years ago we created a vegetation map for central and southwest Kenya (see http://ecodiv.org/trapnell for more information). The map together with documentation was made available on CD-ROM. However, we wanted to publish the map online … Continue reading

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ClickFu in QGIS

Although Google maps and other online mapping tools become more powerful, creating and analyzing maps is still typically done using a desktop GIS. I am for example using GRASS GIS and QGIS for my work. These are very powerful tools, … Continue reading

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Placing your library on the map

Zotero, the free Firefox extension to help you collect, manage, cite, and share your research sources, just came with an interesting new plutin; Zotero maps.  The plugin allows Zotero users to map the references in your library on the globe.

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