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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
Posted in Data handling, online mapping, QGIS
Tagged GDAL, gdal2tiles.py, google earth map, Maptiler, QGIS
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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
Posted in Data handling, Data sources, decision support tool, online mapping
Tagged confidence, online mapping, soil map
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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
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
Posted in Data handling, GRASS GIS, online mapping, vegetation
Tagged Ethiopia, GRASS GIS, online mapping, vegetation map
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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
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
Posted in GIS, online mapping, vegetation
Tagged Google map, GRASS GIS, online mapping, R, scripting, vegetation map
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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
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
Posted in GIS, GRASS GIS, online mapping, vegetation
Tagged GIS, Kenya, LinkedIn, online mapping, vegetation map
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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
Posted in Data handling, GIS, GIS software, online mapping, QGIS
Tagged GIS, Google map, online mapping, OpenStreetMap, QGIS
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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.
