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Building QGIS on Ubuntu 13.04
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...
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Rounding of floating numbers in GRASS GIS r.mapcalc
The GRASS GIS development team keeps on introducing new features and enhancements to GRASS 7.0. One of the latest examples is the enhancement of the round() function in r.mapcalc. Previously this...
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Sharing geotiff raster files
One of my favourite raster formats to share is the geotiff, mostly because I always thought it is one of the most portable formats. But yesterday I got an email from a colleague that the geotiffs I...
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The all new shiny QGIS 2.0 has arrived
And it is looking great. I have been using the master (development) version for some time now, so I can tell you out of experience that this release rocks! Some of my favourites are the greatly...
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Creating a QGIS color map from text file
I recently found the interesting USGS map of global ecosystems. The data can be viewed online but can also be downloaded as geotif files, which is great as about every GIS program on the planet can...
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QGIS auto-trace plugin
Last time I opened QGIS there was a notification that there was a new plugin; the auto-trace plugin. I just tried it out to see what it is all about. I must say, it is a pretty nifty tool. It …...
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Installing Google Earth on Ubuntu 13.10 64-bit
Google earth cannot be installed on Ubuntu 64-bit systems anymore. It requires the ia32-libs which is unfortunately deprecated in Ubuntu 13.10. Luckily I found a solution by mc4man on the Ubuntu...
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A new great version of QGIS
Are you one of those people eagerly waiting for all those new features in QGIS that have been mentioned in the last couple of months on various forums and blogs? Well, the waiting is (almost) over....
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Rescale your raster data layer
Sometimes you want to rescale a raster layer, e.g., to reduce the number of categories, or to create a common scale for different raster layers. Very basic of course, so you can expect to find an...
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Reverb makes it easy to find and download satellite data
If you need MODIS satellite data, you should check Nasa’s Reverb web portal. It is a, and I quote, “next generation metadata and service discovery tool”. But, as it turns out, is is already available...
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A quick list for one-click access to a list of often used xsetwacom settings
I just bought a small Wacom drawing tablet to use as alternative mouse and for my photo editing. According to the manual this tablets, like most on the market, are only compatible with Windows or OS X....
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GRASS 7.0 beta1 is out
After a long wait, GRASS 7.0 beta is out! See here a summary of what is new in this release. Take your time, is is a long list :-). In fact, GRASS 7.0 has been available for some time now … Continue...
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Add multiple raster or vector map layers to current map display in GRASS GIS
If your mapset contains many raster or vector layers GRASS offers a very handy feature to quickly select the layers you want to add to your current map display. In the layer manager, click Ctrl+Shift+L...
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ZIM desktop wiki 0.57 is out
I just got the latest update from ZIM desktop wiki, with some noticeable changes / improvements. From the release notes: Highlights of this release are a rework of the side panes, allowing plugins to...
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Integrating Maxent, R and GRASS GIS
The maximum-entropy (Maxent) methods is one of the most widely used approaches for species habitat modelling. It has its own dedicated software, the Maxent software (written in java and therefore...
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Disabling Ubuntu’s overlay-scrollbars for GRASS (or other applications)
Ubuntu has this new overlay-scrollbars for some time now. They look good I think, but unfortunately, they do not play nicely with GRASS GIS. So what if you want to keep them for most programs, but...
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A faster way to calculate MESS in R – or – a tribute to Stack overflow
Jean-Pierre Rossi introduced a function to calculate the “Multivariate Environmental Similarity Surfaces” in R. Since then, the function has become part of the dismo package, which is a package...
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LibreOffice global menubar still not working properly in Ubuntu 12.10
I upgraded to Ubuntu 12.10 Quantal Quetzal about two weeks ago. As usual, there are a number of new or improved features and changes, the arguably most controversial being the Dash’s Amazon...
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Opening MODIS tiles in QGIS
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:...
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Reading GRASS GIS vector attribute tables into R
Linking GRASS GIS and R will give you a very powerful set of geo-spatial analytical tools. The spgrass6 offers a very convenient interface between GRASS GIS and R. You can read more about this package...
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