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 improved map composer, great new styling features, integration of Sextante in QGIS core and much improved stability. For a list of major changes and new functions, go here. But, of course, don’t take my word for it, but check it out yourself and get a copy from the QGIS website.
QGIS Dufour has arrived!
QGIS 2.0 in action
And the completely revamped website!
GRASS GIS 6.4.3 released – Birthday release for 30 years of GRASS GIS on http://grass.osgeo.org
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 shared looked strange in ArcMap, with hardly any values to show and an apparent range of values of 1,79769e+308 to 2,22507e-308.
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 function would always returns an integer, regardless of its argument types. And because integers are always 32-bit, the result was limited to the range ± 2147483647 (2^31-1).
These limitations have been removed in the latest update of grass 7.0 (trunk r56313). Now the output type of round() is the same as the input type. Rounding to a given number of decimal places is supported with round(x, y) where y = number of decimal places.
In addition, the new function round(x, y) supports a negative number of decimal places: for example, round(119, -1) results in 120, and round(119, -2) results in 100.
Again great work by the GRASS development team!
Rounding a double precision raster layers (twi_900mm) to two decimals places (test).
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 Qt 5. You could solve this by changing back to Qt4, but as one pointed out in the comments on Nyall Dawson’s post, making system-wide changes to compile a single piece of software might be a bit of an overkill. Instead, what worked for me was to change in the configure options:
You may also need to set -DQT_INCLUDE_DIR=/usr/include/qt4 as suggested in the above-mentioned comment. In my case it was already set, so I didn’t need to change it.
The next error was that libpython2.7.so was not found in /usr/lib. Following Nyal Dawson’s suggestion, I found it in /usr/lib/x86_64-linux-gnu/.
Creating a softlink did the trick: ln -sf /usr/lib/x86_64-linux-gnu/libpython2.7.so /usr/lib/libpython2.7.so sudo ldconfig
Update from Nyal Dawson: change the PYTHON_LIBRARY option:
And now QGIS is up and running again :-), thanks to the above-mentioned two posts.
My reference manager of choice, Zotero, just released an update, Zotero 4.0, with loads of new functionality. For the highlights, see here.
Since Google discontinued Google reader I have always been wondering; what if they decide to stop with Google Scholar? If you are lucky enough to have access to an university library, you should be fine. But there are also a number of freely available alternatives. Just checking my bookmarks gave me gave me the list below. None of these tools have been able to convince me to abandon Google Scholar (to be completely fair, I haven’t tried them all out extensively), but at least if Google decides to kill of Scholar, I have somewhere else to go: Continue reading
I just came across these GRASS GIS scripts by Julien Seguinot to import multiple files from the WorldClim current climate dataset, the Climate Forecast System Reanalysis (CSFR) data and some other reanalysis data sets. Furthermore, there is a script (r.in.pism) to imports multiple raster maps from a NetCDF output file from PISM.
They are not in the GRASS addon 6 or GRASS addon 7 repositories so I am sharing the link here. If you are planning to work with these data sets, check out these scripts, they may make your life a whole lot easier.
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 all new print composer. There are six posts highlighting the following new features: guidelines, multi-column legends, overview maps, html labels, map grids and rules and guidelines.
At nyalldawson.net you can read more about the upcoming ‘blend modes for layers‘. These effects, previously only found in photo/image editors like GIMP or photoshop, will allow you to blend layers together using various effects. Another feature you would normally expect in GIMP or the like is colour control for raster layers. This allows you to tweak the saturation, hue, grey scale, etc.
There is a lot more coming, but these changes alone are really impressive!