New release RQGIS

From an announcement from the QGIS mailing list: RQGIS has released a new version of RQGIS! RQGIS establishes an interface between R and QGIS, i.e. it allows the user to access the QGIS geoalgorithms from within R. With the new release, it is possible to run the most recent QGIS releases (>=2.18.2) with RQGIS.

RQGIS establishes an interface between R and QGIS, i.e. it allows the user to access QGIS functionalities from within R. It thus serves a similar goal as rgrass7 which provides an interface between R and GRASS GIS and rsaga, which provides access to geocomputing and terrain analysis functions of SAGA GIS from within R.

RQGIS provides access to all functions available through QGIS’s processing framework, which includes among others GRASS GIS and SAGA GIS (others are GDAL, the Orfeo Toolbox, TauDEM and tools for LiDAR data). Thus, RQGIS RQGIS offers an (partial) replacement of rgrass7 and rsaga packages. However, note that the latter two packages offer various other advantages.

I personally find rgrass7 and rsaga great tools that allow easy access to respectively GRASS and SAGA. I have less experience with RQGIS, but I can already tell that what I particularly like about RQGIS is that it makes it easier to combined different tools in an unified interface (which is of course the same reason I like the processing toolbox in QGIS). Take for example the find_algorithms function. This allows you to search for algorithms across all available toolboxes using keywords, similar to the search box in the processing toolbox in QGIS itself. I will certainly explore this package more!

You can find more information on the github page https://github.com/jannes-m/RQGIS, including installation instructions and some use examples. See also the blog post of one of the RQGIS authors.

 

 

 

 

 

 

QGIS 2.14 ‘Essen’ has been released

The QGIS development team has released version 2.14 of QGIS. This is a special release since it is designated an ‘LTR’ (Long Term Release), which means it will be supported with back ported bug fixes for one year.

This new version has a host of new features and improvements. See the visual changelog for a nice overview and head over to the QGIS home page to get your copy (it may not yet be available for all platforms. If not, revisit the page in a few days).

As a very happy user of QGIS, I would like to express my sincere thanks to the developers for their hard work, and to the sponsors (listed on the page with visual change log in case you are interested who has made this new version possible).

GRASS GIS addon to create smoothed legend image

I just uploaded a small addon for GRASS GIS, r.out.legend, with which you can quickly create a smoothed legend image for floating point raster maps (continuous values as opposed to categories).

You just select the raster layer, the dimensions and resolution required and the name of the output image. Other options are to change the font and font size and the image type (PNG, BMP, PDF and SVG).

r_out_legend_4
Example of an output of the r.out.legend addon

Continue reading “GRASS GIS addon to create smoothed legend image”

GRASS GIS 7.0.2 released

For those who haven’t seen it yet, GRASS GIS 7.0.2 has been released! See here for the announcement and here for a detailed overview of all the changes (over 190 of stability fixes and improvements since GRASS GIS 7.01).

For those still using GRASS GIS 6.4, GRASS GIS 7 offers a strongly improved interface, a considerable increases in speed and efficiency, support for huge files, and a long list of new modules to analyse raster and vector data, including a full temporal framework. Also important, as a stable release series, 7.0.x enjoys long-term support.

As usual, a great thanks to the developers!

First release candidate of the upcoming GRASS GIS 7.0.2 version

Fresh from the press, that is, the GRASS email list: The first release candidate of the upcoming GRASS GIS 7.0.2 is out. This upcoming stability release provides a series of stability fixes and manual improvements. This first  release candidate GRASS GIS 7.0.2RC1 provides 160 fixes and improvements. So first a great thanks for all the hard work of the developers!

There are also two new modules: r.import and v.import. Continue reading “First release candidate of the upcoming GRASS GIS 7.0.2 version”

The QGIS GRASS plugin is back

For me, one of the killer features of QGIS has always been the integration with GRASS GIS. With the GRASS GIS plugin, introduced about 10 years ago, QGIS basically provided an alternative interface for GRASS GIS. Sadly, it didn’t work well with GRASS GIS 7. So you can imagine how happy I was to see this crowd funding campaign, started in March this year by Radim Blazek, author of most parts of original GRASS plugin implementation, to upgrade the plugin. Continue reading “The QGIS GRASS plugin is back”