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Category Archives: QGIS
Always one of those dreaded moments after updating Ubuntu, to 13.04 this time. Will QGIS compile properly. Not as it turned out, but the solutions were easy and quick, thanks to posts on nyalldawson.net and boringnerdystuff. Ubuntu 13.04 defaults to … Continue reading
The upcoming QGIS 2.0 will have some really cool and useful new features. Check for example out the latest blog posts by Anita Graser aka Underdark, where she takes you on a tour of all the new features of the … Continue reading
Articles about field studies sometimes (but not always unfortunately) contain coordinates delimiting the boundaries of the field study. What if you want to view those boundaries in e.g., Google Earth? In other words, how to create a polygon layer based … Continue reading
How to sum up values of neighbouring polygons in QGIS? This question was asked on gis.stackexchange, with two interesting answers. One answer explains how to use Spatialite and SQL to achieve this. The other answer, explained in more detail here, presents … Continue reading
Check out this post by Underdark about two sets of new QGIS symbol packages with series of simple fill symbols based on ColorBrewer. Create work!
In my previous post I described how you can create a random stratified sampling using GRASS GIS. Unlike in GRASS GIS however, QGIS has a dedicated tool to do this. You can find it under ‘research tools’ in ‘Vector’ menu.
Most open source GIS programs can open all most common, and quite a few obscure data format (thanks to the gdal library). What they can’t open is the ArcMap layer files (.lyr). A layer file defines the symbology used to … Continue reading
NASA offers a very convenient web-based tool to select and download the tiles you need; Reverb / ECHO. The tiles are in HDF format and use the Sinusoidal grid tiling system (proj4 definition: +proj=sinu +lon_0=0 +x_0=0 +y_0=0 +a=6371007.181 +b=6371007.181 +units=m … Continue reading